[PATCH] sim: common: modernize gennltvals.sh

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* [PATCH] sim: common: modernize gennltvals.sh
@ 2021-01-17 10:10 Mike Frysinger via Gdb-patches
  2021-01-17 10:36 ` [PATCH] sim: common: delete configure & Makefile Mike Frysinger via Gdb-patches
                   ` (3 more replies)
  0 siblings, 4 replies; 14+ messages in thread
From: Mike Frysinger via Gdb-patches @ 2021-01-17 10:10 UTC (permalink / raw)
  To: gdb-patches

It's not 1996 anymore, so stop writing shell code like it is, and
rewrite it with modern POSIX shell standards.  This makes it much
more user friendly.

Then regenerate the file with latest newlib sources to verify.

	* Makefile.in (headers): Change args to gennltvals.sh.
	* gennltvals.sh: Rewrite from scratch.
	* gentvals.sh: Delete.
	* nltvals.def: Regen.
---
 sim/common/Makefile.in   |   2 +-
 sim/common/gennltvals.sh | 313 +++++++++++++++++++++++++++------------
 sim/common/gentvals.sh   |  74 ---------
 sim/common/nltvals.def   |   7 +
 4 files changed, 229 insertions(+), 167 deletions(-)
 delete mode 100755 sim/common/gentvals.sh

diff --git a/sim/common/Makefile.in b/sim/common/Makefile.in
index 4191b107e2fa..827cf1ef34b2 100644
--- a/sim/common/Makefile.in
+++ b/sim/common/Makefile.in
@@ -82,7 +82,7 @@ headers:
 	rootme=`pwd` ; \
 	cd $(srcdir) ; \
 	rm -f nltvals.new ; \
-	$(SHELL) $(abs_srcdir)/gennltvals.sh $(SHELL) $(srcroot) "$(CPP_FOR_TARGET)" > nltvals.new ; \
+	$(SHELL) $(abs_srcdir)/gennltvals.sh --cpp "$(CPP_FOR_TARGET)" $(srcroot) --output nltvals.new ; \
 	$(SHELL) $(srcroot)/move-if-change nltvals.new nltvals.def
 
 .c.o:
diff --git a/sim/common/gennltvals.sh b/sim/common/gennltvals.sh
index 79180335b627..ce52cb3c55ca 100755
--- a/sim/common/gennltvals.sh
+++ b/sim/common/gennltvals.sh
@@ -1,33 +1,135 @@
 #! /bin/sh
-# Generate nltvals.def, a file that describes various newlib/libgloss
-# target values used by the host/target interface.
+# Copyright (C) 1996-2021 Free Software Foundation, Inc.
 #
-# Syntax: /bin/sh gennltvals.sh shell srcroot cpp
-
-shell=$1
-srcroot=$2
-cpp=$3
-
-srccom=$srcroot/sim/common
-if [ -d "${srcroot}/newlib" ]; then
-  # If newlib is manually in the same source tree, use it.
-  newlibroot=${srcroot}
-else
-  # Else assume it's alongside the gdb/binutils repo.
-  newlibroot=${srcroot}/../newlib
-fi
-
-echo '/* Newlib/libgloss macro values needed by remote target support.  */'
-echo '/* This file is machine generated by gennltvals.sh.  */'
-
-$shell ${srccom}/gentvals.sh "" errno ${newlibroot}/newlib/libc/include \
-	"errno.h sys/errno.h" 'E[[:upper:][:digit:]]*' "${cpp}"
-
-$shell ${srccom}/gentvals.sh "" signal ${newlibroot}/newlib/libc/include \
-	"signal.h sys/signal.h" 'SIG[[:upper:][:digit:]]*' "${cpp}"
-
-$shell ${srccom}/gentvals.sh "" open ${newlibroot}/newlib/libc/include \
-	"fcntl.h sys/fcntl.h sys/_default_fcntl.h" 'O_[[:upper:][:digit:]]*' "${cpp}"
+# This file is part of the GNU simulators.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Display the tool usage and exit.
+usage() {
+  cat <<EOF
+Usage: $0 [path to newlib source tree]
+
+Generate nltvals.def, a file that describes various newlib/libgloss target
+values used by the host/target interface.  This needs to be rerun whenever
+the newlib source changes.  Developers manually run it.
+
+If the path to newlib is not specified, it will be searched for in:
+- the root of this source tree
+- alongside this source tree
+
+Options:
+  -o, --output <file>   Write to the specified file instead of stdout.
+  --cpp <cpp>           The preprocessor to use.
+  -h, --help            This text you're reading!
+EOF
+  if [ $# -gt 0 ]; then
+    error "$*"
+  fi
+  exit 0
+}
+
+# Show an error message and exit.
+error() {
+  echo "$0: error: $*" >&2
+  exit 1
+}
+
+ARG_CPP="cpp"
+ARG_NEWLIB=""
+ARG_OUTPUT=""
+
+# Emit the header for this generated def file.
+gen_header() {
+  cat <<EOF
+/* Newlib/libgloss macro values needed by remote target support.  */
+/* This file is machine generated by gennltvals.sh.  */
+EOF
+}
+
+# Extract constants from the specified files using a regular expression and the
+# preprocessor.
+gentvals() {
+  target=$1
+  type=$2
+  dir=$3
+  # FIXME: Would be nice to process #include's in these files.
+  files=$4
+  pattern=$5
+
+  # Require all files exist in order to regenerate properly.
+  for f in ${files}; do
+    if [ ! -f "${dir}/${f}" ]; then
+      error "file does not exist: ${dir}/${f}"
+    fi
+  done
+
+  if [ -z "${target}" ]; then
+    echo "#ifdef ${type}_defs"
+  else
+    echo "#ifdef NL_TARGET_${target}"
+    echo "#ifdef ${type}_defs"
+  fi
+
+  printf "/* from %s */\n" ${files}
+
+  if [ -z "${target}" ]; then
+    echo "/* begin ${type} target macros */"
+  else
+    echo "/* begin ${target} ${type} target macros */"
+  fi
+
+  # Extract all the symbols.
+  (
+  printf '#include <%s>\n' ${files}
+  for f in ${files}; do
+    sed -E -n -e "/^# *define[[:space:]]${pattern}/{\
+        s|# *define[[:space:]](${pattern})[[:space:]]*([^[:space:]][^[:space:]]*).*$|\1|; \
+        p}" \
+      "${dir}/${f}"
+  done |
+  sort -u |
+  while read sym; do
+    echo "#ifdef ${sym}"
+    echo "DEFVAL { \"${sym}\", ${sym} },"
+    echo "#endif"
+  done
+  ) |
+  ${ARG_CPP} -E -I"${dir}" |
+  sed -E -n -e '/^DEFVAL/{s/DEFVAL//; s/[[:space:]]+/ /; p}'
+
+  if [ -z "${target}" ]; then
+    echo "/* end ${type} target macros */"
+    echo "#endif"
+  else
+    echo "/* end ${target} ${type} target macros */"
+    echo "#endif"
+    echo "#endif"
+  fi
+}
+
+# Generate the common C library constants.  No arch should override these.
+gen_common() {
+  gentvals "" errno ${ARG_NEWLIB}/newlib/libc/include \
+    "errno.h sys/errno.h" 'E[[:upper:][:digit:]]*'
+
+  gentvals "" signal ${ARG_NEWLIB}/newlib/libc/include \
+    "signal.h sys/signal.h" 'SIG[[:upper:][:digit:]]*'
+
+  gentvals "" open ${ARG_NEWLIB}/newlib/libc/include \
+    "fcntl.h sys/fcntl.h sys/_default_fcntl.h" 'O_[[:upper:][:digit:]]*'
+}
 
 # Unfortunately, each newlib/libgloss port has seen fit to define their own
 # syscall.h file.  This means that system call numbers can vary for each port.
@@ -35,67 +137,94 @@ $shell ${srccom}/gentvals.sh "" open ${newlibroot}/newlib/libc/include \
 # If you want to try to improve this, please do, but don't break anything.
 # Note that there is a standard syscall.h file (libgloss/syscall.h) now which
 # hopefully more targets can use.
-
-dir=libgloss target=bfin
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=newlib/libc/sys/d10v/sys target=d10v
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-# OBSOLETE dir=libgloss target=d30v
-# OBSOLETE $shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-# OBSOLETE 	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss/cr16/sys target=cr16
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=fr30
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=frv
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss/i960 target=i960
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=m32r
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss/mcore target=mcore
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=mn10200
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=mn10300
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=msp430
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=sparc
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss/v850/sys target=v850
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=lm32
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=pru
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
+#
+# NB: New ports should use libgloss, not newlib.
+gen_arch() {
+  target="$1"
+  dir="${2:-libgloss}"
+  gentvals "${target}" sys "${ARG_NEWLIB}/${dir}" "syscall.h" 'SYS_[_[:alnum:]]*'
+}
+
+gen_arches() {
+  gen_arch bfin
+  gen_arch d10v newlib/libc/sys/d10v/sys
+  gen_arch cr16 libgloss/cr16/sys
+  gen_arch fr30
+  gen_arch frv
+  gen_arch i960 libgloss/i960
+  gen_arch m32r
+  gen_arch mcore libgloss/mcore
+  gen_arch mn10200
+  gen_arch mn10300
+  gen_arch msp430
+  gen_arch sparc
+  gen_arch v850 libgloss/v850/sys
+  gen_arch lm32
+  gen_arch pru
+}
+
+# Process the script command line options.
+parse_opts() {
+  for arg in "$@"; do
+    case ${arg} in
+      --cpp)
+        ARG_CPP="$2"
+        shift
+        ;;
+      -o|--output)
+        ARG_OUTPUT="$2"
+        shift
+        ;;
+      -h|--help)
+        usage
+        ;;
+      --)
+        shift
+        break
+        ;;
+      -*)
+        usage "unknown option: $1"
+        ;;
+      *)
+        break
+        ;;
+    esac
+    shift
+  done
+
+  if [ $# -gt 2 ]; then
+    error "too many arguments: $*"
+  elif [ $# -eq 1 ]; then
+    ARG_NEWLIB="$1"
+  fi
+
+  # Try to find newlib relative to our source tree.
+  if [ -z "${ARG_NEWLIB}" ]; then
+    srcroot="$(dirname "$0")/../.."
+    if [ -d "${srcroot}/newlib" ]; then
+      # If newlib is manually in the same source tree, use it.
+      ARG_NEWLIB="${srcroot}/newlib"
+    elif [ -d "${srcroot}/../newlib" ]; then
+      # Or see if it's alongside the gdb/binutils repo.
+      ARG_NEWLIB="${srcroot}/../newlib"
+    else
+      error "unable to find newlib"
+    fi
+  fi
+}
+
+main() {
+  # The error checking isn't perfect, but should be good enough for this script.
+  set -e
+
+  parse_opts "$@"
+
+  if [ -n "${ARG_OUTPUT}" ]; then
+    exec >"${ARG_OUTPUT}" || exit 1
+  fi
+
+  gen_header
+  gen_common
+  gen_arches
+}
+main "$@"
diff --git a/sim/common/gentvals.sh b/sim/common/gentvals.sh
deleted file mode 100755
index 6dd7315f30aa..000000000000
--- a/sim/common/gentvals.sh
+++ /dev/null
@@ -1,74 +0,0 @@
-#!/bin/sh
-# Usage: gentvals.sh target type dir files pattern cpp
-
-target=$1
-type=$2
-dir=$3
-# FIXME: Would be nice to process #include's in these files.
-files=$4
-pattern=$5
-cpp=$6
-
-# FIXME: need trap to remove tmp files.
-
-rm -f tmpvals.list tmpvals.uniq
-for f in $files
-do
-	if test -f $dir/$f ; then
-		grep "#define[ 	]$pattern" $dir/$f | sed -e "s/^.*#define[ 	]\($pattern\)[ 	]*\([^ 	][^ 	]*\).*$/\1/" >> tmpvals.list
-	fi
-done
-
-sort <tmpvals.list | uniq >tmpvals.uniq
-
-rm -f tmpvals.h
-for f in $files
-do
-	if test -f $dir/$f ; then
-		echo "#include <$f>" >>tmpvals.h
-	fi
-done
-
-cat tmpvals.uniq |
-while read sym
-do
-	echo "#ifdef $sym" >>tmpvals.h
-	echo 'DEFVAL { "'$sym'", '$sym ' },' >>tmpvals.h
-	echo "#endif" >>tmpvals.h
-done
-
-if test -z "$target"
-then
-	echo "#ifdef ${type}_defs"
-else
-	echo "#ifdef NL_TARGET_$target"
-	echo "#ifdef ${type}_defs"
-fi
-
-for f in $files
-do
-	if test -f $dir/$f ; then
-		echo "/* from $f */"
-	fi
-done
-
-if test -z "$target"
-then
-	echo "/* begin $type target macros */"
-else
-	echo "/* begin $target $type target macros */"
-fi
-
-$cpp -I$dir tmpvals.h | grep DEFVAL | sed -e 's/DEFVAL//' -e 's/  / /'
-
-if test -z "$target"
-then
-	echo "/* end $type target macros */"
-	echo "#endif"
-else
-	echo "/* end $target $type target macros */"
-	echo "#endif"
-	echo "#endif"
-fi
-
-rm -f tmpvals.list tmpvals.uniq tmpvals.h
diff --git a/sim/common/nltvals.def b/sim/common/nltvals.def
index 92ccc9aded8b..08df7d5c4598 100644
--- a/sim/common/nltvals.def
+++ b/sim/common/nltvals.def
@@ -115,6 +115,7 @@
  { "SIGPROF", 27 },
  { "SIGQUIT", 3 },
  { "SIGSEGV", 11 },
+ { "SIGSTKSZ", 8192 },
  { "SIGSTOP", 17 },
  { "SIGSYS", 12 },
  { "SIGTERM", 15 },
@@ -138,12 +139,18 @@
 /* begin open target macros */
  { "O_ACCMODE", (0|1|2) },
  { "O_APPEND", 0x0008 },
+ { "O_CLOEXEC", 0x40000 },
  { "O_CREAT", 0x0200 },
+ { "O_DIRECT", 0x80000 },
+ { "O_DIRECTORY", 0x200000 },
  { "O_EXCL", 0x0800 },
+ { "O_EXEC", 0x400000 },
  { "O_NOCTTY", 0x8000 },
+ { "O_NOFOLLOW", 0x100000 },
  { "O_NONBLOCK", 0x4000 },
  { "O_RDONLY", 0 },
  { "O_RDWR", 2 },
+ { "O_SEARCH", 0x400000 },
  { "O_SYNC", 0x2000 },
  { "O_TRUNC", 0x0400 },
  { "O_WRONLY", 1 },
-- 
2.28.0


^ permalink raw reply	[flat|nested] 14+ messages in thread

* [PATCH] sim: common: delete configure & Makefile
  2021-01-17 10:10 [PATCH] sim: common: modernize gennltvals.sh Mike Frysinger via Gdb-patches
@ 2021-01-17 10:36 ` Mike Frysinger via Gdb-patches
  2021-01-18 10:01   ` Andrew Burgess
  2021-01-18 10:00 ` [PATCH] sim: common: modernize gennltvals.sh Andrew Burgess
                   ` (2 subsequent siblings)
  3 siblings, 1 reply; 14+ messages in thread
From: Mike Frysinger via Gdb-patches @ 2021-01-17 10:36 UTC (permalink / raw)
  To: gdb-patches

This was mostly orphaned a while back, but left behind so people could
still run `make headers`.  Merge that one target to the top sim dir and
delete all the build logic.  This should avoid confusing people further.

sim/:
	* Makefile.in (abs_srcdir, srcroot, CPP): Define.
	(nltvals): New target.
	* README-HACKING: Change headers to nltvals.

sim/common/:
	* configure, configure.ac, Makefile.in: Delete.
---
 sim/Makefile.in         |   16 +
 sim/README-HACKING      |    6 +-
 sim/common/Makefile.in  |  135 --
 sim/common/configure    | 3718 ---------------------------------------
 sim/common/configure.ac |   34 -
 sim/configure           |  179 +-
 sim/configure.ac        |    1 +
 7 files changed, 198 insertions(+), 3891 deletions(-)
 delete mode 100644 sim/common/Makefile.in
 delete mode 100755 sim/common/configure
 delete mode 100644 sim/common/configure.ac

diff --git a/sim/Makefile.in b/sim/Makefile.in
index ca41cb6f65e5..6c15b8b3a780 100644
--- a/sim/Makefile.in
+++ b/sim/Makefile.in
@@ -19,6 +19,8 @@
 
 VPATH = @srcdir@
 srcdir = @srcdir@
+abs_srcdir = @abs_srcdir@
+srcroot = $(abs_srcdir)/..
 
 prefix = @prefix@
 exec_prefix = @exec_prefix@
@@ -54,6 +56,7 @@ INSTALL_DATA = @INSTALL_DATA@
 AR = @AR@
 AR_FLAGS = rc
 CC = @CC@
+CPP = @CPP@
 CFLAGS = @CFLAGS@
 CC_FOR_BUILD = @CC_FOR_BUILD@
 CFLAGS_FOR_BUILD = @CFLAGS_FOR_BUILD@
@@ -221,6 +224,19 @@ Makefile: Makefile.in config.status
 config.status: configure
 	$(SHELL) ./config.status --recheck
 
+# Generate nltvals.def for newlib/libgloss using devo and build tree.
+# This file is shipped with distributions so we build in the source dir.
+# Use `make nltvals' to rebuild.
+# Note: If gdb releases begin to contain target header files (not a good idea,
+# but if they did ...), nltvals.def coud be generated at build time.
+# An alternative is to slurp in the tables at runtime.
+.PHONY: nltvals
+nltvals:
+	set -e ; \
+	rm -f $(abs_srcdir)/common/nltvals.new ; \
+	$(SHELL) $(abs_srcdir)/common/gennltvals.sh --cpp "$(CPP)" --output $(abs_srcdir)/common/nltvals.new --srcroot $(srcroot) ; \
+	$(SHELL) $(srcroot)/move-if-change $(abs_srcdir)/common/nltvals.new $(abs_srcdir)/common/nltvals.def
+
 # Utility to run autoconf in each directory that uses the common framework.
 # This is intended to be invoked in $srcdir as
 # "make -f Makefile.in autoconf-common SHELL=/bin/sh".
diff --git a/sim/README-HACKING b/sim/README-HACKING
index 7f0f93e0ab49..583a559d2b0c 100644
--- a/sim/README-HACKING
+++ b/sim/README-HACKING
@@ -191,10 +191,10 @@ convenience):
 	$  cd /tmp/$$/build
 	$  /tmp/$$/devo/configure --target=d10v-elf
 
-In the sim/common directory rebuild the headers:
+In the sim/ directory rebuild the headers:
 
-	$  cd sim/common
-	$  make headers
+	$  cd sim/
+	$  make nltvals
 
 To add a new target:
 
diff --git a/sim/common/Makefile.in b/sim/common/Makefile.in
deleted file mode 100644
index 33cd788737cb..000000000000
--- a/sim/common/Makefile.in
+++ /dev/null
@@ -1,135 +0,0 @@
-#    Makefile template for Configure for simulator common directory
-#    Copyright (C) 1996-2021 Free Software Foundation, Inc.
-# 
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-default: all
-
-VPATH = @srcdir@
-srcdir = @srcdir@
-abs_srcdir = @abs_srcdir@
-srcroot = $(abs_srcdir)/../..
-
-prefix = @prefix@
-exec_prefix = @exec_prefix@
-
-host_alias = @host_alias@
-target_alias = @target_alias@
-program_transform_name = @program_transform_name@
-bindir = @bindir@
-
-libdir = @libdir@
-tooldir = $(libdir)/$(target_alias)
-
-datarootdir = @datarootdir@
-datadir = @datadir@
-mandir = @mandir@
-man1dir = $(mandir)/man1
-infodir = @infodir@
-includedir = @includedir@
-
-SHELL = /bin/sh
-
-INSTALL = @INSTALL@
-INSTALL_PROGRAM = @INSTALL_PROGRAM@
-INSTALL_DATA = @INSTALL_DATA@
-
-CC = @CC@
-CC_FOR_BUILD = @CC_FOR_BUILD@
-CFLAGS = @CFLAGS@
-
-# These are used to rebuild nltvals.def.
-CPP_FOR_TARGET = @CPP_FOR_TARGET@
-TARGET_SUBDIR = @TARGET_SUBDIR@
-
-HDEFINES = @HDEFINES@
-TDEFINES =
-
-CONFIG_CFLAGS = @DEFS@ $(HDEFINES) $(TDEFINES)
-CSEARCH = -I. -I$(srcdir) -I$(srcroot)/include
-ALL_CFLAGS = $(CFLAGS) $(CONFIG_CFLAGS) $(CSEARCH)
-BUILD_CFLAGS = -g -O $(CSEARCH)
-
-AR = @AR@
-AR_FLAGS = rc
-RANLIB = @RANLIB@
-MAKEINFO = makeinfo
-
-.NOEXPORT:
-MAKEOVERRIDES=
-
-all:
-
-# Generate nltvals.def for newlib/libgloss using devo and build tree.
-# This file is shipped with distributions so we build in the source dir.
-# Use `make headers' to rebuild.
-# Note: If gdb releases begin to contain target header files (not a good idea,
-# but if they did ...), nltvals.def coud be generated at build time.
-# An alternative is to slurp in the tables at runtime.
-.PHONY: headers
-headers:
-	rootme=`pwd` ; \
-	cd $(srcdir) ; \
-	rm -f nltvals.new ; \
-	$(SHELL) $(abs_srcdir)/gennltvals.sh --cpp "$(CPP_FOR_TARGET)" --srcroot $(srcroot) --output nltvals.new ; \
-	$(SHELL) $(srcroot)/move-if-change nltvals.new nltvals.def
-
-.c.o:
-	$(CC) -c $< $(ALL_CFLAGS)
-
-check:
-
-info:
-clean-info:
-install-info:
-
-tags etags: TAGS
-
-# Macros like EXTERN_SIM_CORE confuse tags.
-# And the sim-n-foo.h files create functions that can't be found either.
-TAGS: force
-	cd $(srcdir) && \
-	etags --regex '/^\([a-z_]+\) (/\1/' --regex '/^.*\/[*] TAGS: .*/' \
-		*.c *.h
-
-clean:
-	rm -f *.[oa] *~ core
-
-distclean mostlyclean maintainer-clean realclean: clean
-	rm -f TAGS
-	rm -f Makefile config.cache config.log config.status
-
-# Dummy target to force execution of dependent targets.
-force:
-
-# Copy the files into directories where they will be run.
-install: install-man
-install-strip: install-man
-
-install-man: installdirs
-	n=`echo run | sed '$(program_transform_name)'`; \
-	$(INSTALL_DATA) $(srcdir)/run.1 $(DESTDIR)$(man1dir)/$$n.1
-
-installdirs:
-	$(SHELL) $(srcdir)/../../mkinstalldirs $(DESTDIR)$(man1dir)
-
-Makefile: Makefile.in config.status
-	$(SHELL) ./config.status
-
-config.status: configure
-	$(SHELL) ./config.status --recheck
-
-config.h: stamp-h ; @true
-stamp-h: config.in config.status
-	CONFIG_FILES= CONFIG_HEADERS=config.h:config.in $(SHELL) ./config.status
diff --git a/sim/common/configure b/sim/common/configure
deleted file mode 100755
index 8be2e6535f0c..000000000000
--- a/sim/common/configure
+++ /dev/null
@@ -1,3718 +0,0 @@
-#! /bin/sh
-# Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69.
-#
-#
-# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
-#
-#
-# This configure script is free software; the Free Software Foundation
-# gives unlimited permission to copy, distribute and modify it.
-## -------------------- ##
-## M4sh Initialization. ##
-## -------------------- ##
-
-# Be more Bourne compatible
-DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
-  emulate sh
-  NULLCMD=:
-  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '${1+"$@"}'='"$@"'
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-  *) :
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-fi
-
-
-as_nl='
-'
-export as_nl
-# Printing a long string crashes Solaris 7 /usr/bin/printf.
-as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-# Prefer a ksh shell builtin over an external printf program on Solaris,
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-if test -z "$BASH_VERSION$ZSH_VERSION" \
-    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='print -r --'
-  as_echo_n='print -rn --'
-elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='printf %s\n'
-  as_echo_n='printf %s'
-else
-  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
-    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
-    as_echo_n='/usr/ucb/echo -n'
-  else
-    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
-    as_echo_n_body='eval
-      arg=$1;
-      case $arg in #(
-      *"$as_nl"*)
-	expr "X$arg" : "X\\(.*\\)$as_nl";
-	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
-      esac;
-      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
-    '
-    export as_echo_n_body
-    as_echo_n='sh -c $as_echo_n_body as_echo'
-  fi
-  export as_echo_body
-  as_echo='sh -c $as_echo_body as_echo'
-fi
-
-# The user is always right.
-if test "${PATH_SEPARATOR+set}" != set; then
-  PATH_SEPARATOR=:
-  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
-    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
-      PATH_SEPARATOR=';'
-  }
-fi
-
-
-# IFS
-# We need space, tab and new line, in precisely that order.  Quoting is
-# there to prevent editors from complaining about space-tab.
-# (If _AS_PATH_WALK were called with IFS unset, it would disable word
-# splitting by setting IFS to empty value.)
-IFS=" ""	$as_nl"
-
-# Find who we are.  Look in the path if we contain no directory separator.
-as_myself=
-case $0 in #((
-  *[\\/]* ) as_myself=$0 ;;
-  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
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-IFS=$as_save_IFS
-
-     ;;
-esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
-# in which case we are not to be found in the path.
-if test "x$as_myself" = x; then
-  as_myself=$0
-fi
-if test ! -f "$as_myself"; then
-  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
-  exit 1
-fi
-
-# Unset variables that we do not need and which cause bugs (e.g. in
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-for as_var in BASH_ENV ENV MAIL MAILPATH
-do eval test x\${$as_var+set} = xset \
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-done
-PS1='$ '
-PS2='> '
-PS4='+ '
-
-# NLS nuisances.
-LC_ALL=C
-export LC_ALL
-LANGUAGE=C
-export LANGUAGE
-
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-# Use a proper internal environment variable to ensure we don't fall
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-  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
-    _as_can_reexec=no; export _as_can_reexec;
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-ENV=/dev/null
-(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
-case $- in # ((((
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-  *v* ) as_opts=-v ;;
-  *x* ) as_opts=-x ;;
-  * ) as_opts= ;;
-esac
-exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
-# Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
-as_fn_exit 255
-  fi
-  # We don't want this to propagate to other subprocesses.
-          { _as_can_reexec=; unset _as_can_reexec;}
-if test "x$CONFIG_SHELL" = x; then
-  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
-  emulate sh
-  NULLCMD=:
-  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '\${1+\"\$@\"}'='\"\$@\"'
-  setopt NO_GLOB_SUBST
-else
-  case \`(set -o) 2>/dev/null\` in #(
-  *posix*) :
-    set -o posix ;; #(
-  *) :
-     ;;
-esac
-fi
-"
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-exitcode=0
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-
-else
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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-for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-  as_found=:
-  case $as_dir in #(
-	 /*)
-	   for as_base in sh bash ksh sh5; do
-	     # Try only shells that exist, to save several forks.
-	     as_shell=$as_dir/$as_base
-	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
-		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
-  CONFIG_SHELL=$as_shell as_have_required=yes
-		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
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-  CONFIG_SHELL=$SHELL as_have_required=yes
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-
-      if test "x$CONFIG_SHELL" != x; then :
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-(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
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-exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
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-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
-exit 255
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-    if test x$as_have_required = xno; then :
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-  $as_echo "$0: the shells that I found on your system."
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-    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
-    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
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-    $as_echo "$0: Please tell bug-autoconf@gnu.org about your system,
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-fi
-fi
-fi
-SHELL=${CONFIG_SHELL-/bin/sh}
-export SHELL
-# Unset more variables known to interfere with behavior of common tools.
-CLICOLOR_FORCE= GREP_OPTIONS=
-unset CLICOLOR_FORCE GREP_OPTIONS
-
-## --------------------- ##
-## M4sh Shell Functions. ##
-## --------------------- ##
-# as_fn_unset VAR
-# ---------------
-# Portably unset VAR.
-as_fn_unset ()
-{
-  { eval $1=; unset $1;}
-}
-as_unset=as_fn_unset
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-# as_fn_set_status STATUS
-# -----------------------
-# Set $? to STATUS, without forking.
-as_fn_set_status ()
-{
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-# as_fn_exit STATUS
-# -----------------
-# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
-as_fn_exit ()
-{
-  set +e
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-$as_echo X"$as_dir" |
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-as_me=`$as_basename -- "$0" ||
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-as_test_x='test -x'
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-{
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-{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
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-/* end confdefs.h.  */
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-int
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-{
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-
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
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-int
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-{
-
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-
-int
-main ()
-{
-
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-
-int
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-{
-
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-_ACEOF
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-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-   ac_c_werror_flag=$ac_save_c_werror_flag
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
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-  ac_cv_prog_cc_c89=no
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-/* end confdefs.h.  */
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-struct stat;
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-static char *e (p, i)
-     char **p;
-     int i;
-{
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-{
-  char *s;
-  va_list v;
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-   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
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-   that's true only with -std.  */
-int osf4_cc_array ['\x00' == 0 ? 1 : -1];
-
-/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
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-int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
-
-int test (int i, double x);
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-int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
-int argc;
-char **argv;
-int
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-{
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-}
-_ACEOF
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-fi
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-
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-
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-_ACEOF
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-LTLIBOBJS=$ac_ltlibobjs
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-: "${CONFIG_STATUS=./config.status}"
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-debug=false
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-
-SHELL=\${CONFIG_SHELL-$SHELL}
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-  as_echo_n='printf %s'
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-  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
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-     ;;
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-	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
-      esac
-      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
-      as_fn_append ac_file_inputs " '$ac_f'"
-    done
-
-    # Let's still pretend it is `configure' which instantiates (i.e., don't
-    # use $as_me), people would be surprised to read:
-    #    /* config.h.  Generated by config.status.  */
-    configure_input='Generated from '`
-	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
-	`' by configure.'
-    if test x"$ac_file" != x-; then
-      configure_input="$ac_file.  $configure_input"
-      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
-$as_echo "$as_me: creating $ac_file" >&6;}
-    fi
-    # Neutralize special characters interpreted by sed in replacement strings.
-    case $configure_input in #(
-    *\&* | *\|* | *\\* )
-       ac_sed_conf_input=`$as_echo "$configure_input" |
-       sed 's/[\\\\&|]/\\\\&/g'`;; #(
-    *) ac_sed_conf_input=$configure_input;;
-    esac
-
-    case $ac_tag in
-    *:-:* | *:-) cat >"$ac_tmp/stdin" \
-      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
-    esac
-    ;;
-  esac
-
-  ac_dir=`$as_dirname -- "$ac_file" ||
-$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$ac_file" : 'X\(//\)[^/]' \| \
-	 X"$ac_file" : 'X\(//\)$' \| \
-	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$ac_file" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-  as_dir="$ac_dir"; as_fn_mkdir_p
-  ac_builddir=.
-
-case "$ac_dir" in
-.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
-*)
-  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
-  # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
-  case $ac_top_builddir_sub in
-  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
-  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
-  esac ;;
-esac
-ac_abs_top_builddir=$ac_pwd
-ac_abs_builddir=$ac_pwd$ac_dir_suffix
-# for backward compatibility:
-ac_top_builddir=$ac_top_build_prefix
-
-case $srcdir in
-  .)  # We are building in place.
-    ac_srcdir=.
-    ac_top_srcdir=$ac_top_builddir_sub
-    ac_abs_top_srcdir=$ac_pwd ;;
-  [\\/]* | ?:[\\/]* )  # Absolute name.
-    ac_srcdir=$srcdir$ac_dir_suffix;
-    ac_top_srcdir=$srcdir
-    ac_abs_top_srcdir=$srcdir ;;
-  *) # Relative name.
-    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
-    ac_top_srcdir=$ac_top_build_prefix$srcdir
-    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
-esac
-ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
-
-
-  case $ac_mode in
-  :F)
-  #
-  # CONFIG_FILE
-  #
-
-_ACEOF
-
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-# If the template does not know about datarootdir, expand it.
-# FIXME: This hack should be removed a few years after 2.60.
-ac_datarootdir_hack=; ac_datarootdir_seen=
-ac_sed_dataroot='
-/datarootdir/ {
-  p
-  q
-}
-/@datadir@/p
-/@docdir@/p
-/@infodir@/p
-/@localedir@/p
-/@mandir@/p'
-case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
-*datarootdir*) ac_datarootdir_seen=yes;;
-*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
-$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
-_ACEOF
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-  ac_datarootdir_hack='
-  s&@datadir@&$datadir&g
-  s&@docdir@&$docdir&g
-  s&@infodir@&$infodir&g
-  s&@localedir@&$localedir&g
-  s&@mandir@&$mandir&g
-  s&\\\${datarootdir}&$datarootdir&g' ;;
-esac
-_ACEOF
-
-# Neutralize VPATH when `$srcdir' = `.'.
-# Shell code in configure.ac might set extrasub.
-# FIXME: do we really want to maintain this feature?
-cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-ac_sed_extra="$ac_vpsub
-$extrasub
-_ACEOF
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-:t
-/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
-s|@configure_input@|$ac_sed_conf_input|;t t
-s&@top_builddir@&$ac_top_builddir_sub&;t t
-s&@top_build_prefix@&$ac_top_build_prefix&;t t
-s&@srcdir@&$ac_srcdir&;t t
-s&@abs_srcdir@&$ac_abs_srcdir&;t t
-s&@top_srcdir@&$ac_top_srcdir&;t t
-s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
-s&@builddir@&$ac_builddir&;t t
-s&@abs_builddir@&$ac_abs_builddir&;t t
-s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
-$ac_datarootdir_hack
-"
-eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
-  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
-
-test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
-  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
-  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
-      "$ac_tmp/out"`; test -z "$ac_out"; } &&
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
-which seems to be undefined.  Please make sure it is defined" >&5
-$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
-which seems to be undefined.  Please make sure it is defined" >&2;}
-
-  rm -f "$ac_tmp/stdin"
-  case $ac_file in
-  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
-  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
-  esac \
-  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
- ;;
-
-
-
-  esac
-
-done # for ac_tag
-
-
-as_fn_exit 0
-_ACEOF
-ac_clean_files=$ac_clean_files_save
-
-test $ac_write_fail = 0 ||
-  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
-
-
-# configure is writing to config.log, and then calls config.status.
-# config.status does its own redirection, appending to config.log.
-# Unfortunately, on DOS this fails, as config.log is still kept open
-# by configure, so config.status won't be able to write to it; its
-# output is simply discarded.  So we exec the FD to /dev/null,
-# effectively closing config.log, so it can be properly (re)opened and
-# appended to by config.status.  When coming back to configure, we
-# need to make the FD available again.
-if test "$no_create" != yes; then
-  ac_cs_success=:
-  ac_config_status_args=
-  test "$silent" = yes &&
-    ac_config_status_args="$ac_config_status_args --quiet"
-  exec 5>/dev/null
-  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
-  exec 5>>config.log
-  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
-  # would make configure fail if this is the last instruction.
-  $ac_cs_success || as_fn_exit 1
-fi
-if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
-$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
-fi
-
diff --git a/sim/common/configure.ac b/sim/common/configure.ac
deleted file mode 100644
index ec4ee203743b..000000000000
--- a/sim/common/configure.ac
+++ /dev/null
@@ -1,34 +0,0 @@
-dnl Process this file with autoconf to produce a configure script.
-AC_INIT(Makefile.in)
-
-AC_PROG_CC
-
-# Put a useful copy of CPP_FOR_TARGET in Makefile.
-# This is only used to build the target values header files.  These files are
-# shipped with distributions so CPP_FOR_TARGET only needs to work in
-# developer's trees.  This value is borrowed from ../../Makefile.in.
-CPP_FOR_TARGET="\` \
-  if test -f \$\${rootme}/../../gcc/Makefile ; then \
-    if test -f \$\${rootme}/../../\$(TARGET_SUBDIR)/newlib/Makefile ; then \
-      echo \$\${rootme}/../../gcc/xgcc -B\$\${rootme}/../../gcc/ -idirafter \$\${rootme}/../../\$(TARGET_SUBDIR)/newlib/targ-include -idirafter \$(srcroot)/newlib/libc/include -nostdinc; \
-    else \
-      echo \$\${rootme}/../../gcc/xgcc -B\$\${rootme}/../../gcc/; \
-    fi; \
-  else \
-    if test '\$(host_canonical)' = '\$(target_canonical)' ; then \
-      echo \$(CC); \
-    else \
-      t='\$(program_transform_name)'; echo gcc | sed -e 's/x/x/' \$\$t; \
-    fi; \
-  fi\` -E"
-AC_SUBST(CPP_FOR_TARGET)
-
-# Set TARGET_SUBDIR, needed by CPP_FOR_TARGET.
-if test x"${host}" = x"${target}" ; then
-	TARGET_SUBDIR="."
-else
-	TARGET_SUBDIR=${target_alias}
-fi
-AC_SUBST(TARGET_SUBDIR)
-
-AC_OUTPUT(Makefile)
diff --git a/sim/configure b/sim/configure
index 7093cb1f1cf6..28ed5d7691d5 100755
--- a/sim/configure
+++ b/sim/configure
@@ -590,6 +590,7 @@ subdirs
 CFLAGS_FOR_BUILD
 CC_FOR_BUILD
 HDEFINES
+CPP
 target_os
 target_vendor
 target_cpu
@@ -664,7 +665,8 @@ CC
 CFLAGS
 LDFLAGS
 LIBS
-CPPFLAGS'
+CPPFLAGS
+CPP'
 ac_subdirs_all='aarch64
 arm
 avr
@@ -1322,6 +1324,7 @@ Some influential environment variables:
   LIBS        libraries to pass to the linker, e.g. -l<library>
   CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
               you have headers in a nonstandard directory <include dir>
+  CPP         C preprocessor
 
 Use these variables to override the choices made by `configure' or to help
 it to find libraries and programs with nonstandard names/locations.
@@ -1440,6 +1443,43 @@ fi
   as_fn_set_status $ac_retval
 
 } # ac_fn_c_try_compile
+
+# ac_fn_c_try_cpp LINENO
+# ----------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } > conftest.i && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_cpp
 cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
@@ -3552,6 +3592,143 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+$as_echo_n "checking how to run the C preprocessor... " >&6; }
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+  CPP=
+fi
+if test -z "$CPP"; then
+  if ${ac_cv_prog_CPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CPP needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CPP=$CPP
+
+fi
+  CPP=$ac_cv_prog_CPP
+else
+  ac_cv_prog_CPP=$CPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+$as_echo "$CPP" >&6; }
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
 
 
 AR=${AR-ar}
diff --git a/sim/configure.ac b/sim/configure.ac
index 7de8b99888bf..99364cac7f4e 100644
--- a/sim/configure.ac
+++ b/sim/configure.ac
@@ -10,6 +10,7 @@ AC_CHECK_TOOL(RANLIB, ranlib, :)
 AC_CANONICAL_SYSTEM
 AC_ARG_PROGRAM
 AC_PROG_CC
+AC_PROG_CPP
 AC_SUBST(CFLAGS)
 AC_SUBST(HDEFINES)
 AR=${AR-ar}
-- 
2.28.0


^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH] sim: common: modernize gennltvals.sh
  2021-01-17 10:10 [PATCH] sim: common: modernize gennltvals.sh Mike Frysinger via Gdb-patches
  2021-01-17 10:36 ` [PATCH] sim: common: delete configure & Makefile Mike Frysinger via Gdb-patches
@ 2021-01-18 10:00 ` Andrew Burgess
  2021-01-18 17:09   ` Mike Frysinger via Gdb-patches
  2021-01-18 14:04 ` Simon Marchi via Gdb-patches
  2021-01-18 17:20 ` [PATCH v2] " Mike Frysinger via Gdb-patches
  3 siblings, 1 reply; 14+ messages in thread
From: Andrew Burgess @ 2021-01-18 10:00 UTC (permalink / raw)
  To: Mike Frysinger; +Cc: gdb-patches

* Mike Frysinger via Gdb-patches <gdb-patches@sourceware.org> [2021-01-17 05:10:44 -0500]:

> It's not 1996 anymore, so stop writing shell code like it is, and
> rewrite it with modern POSIX shell standards.  This makes it much
> more user friendly.
> 
> Then regenerate the file with latest newlib sources to verify.
> 
> 	* Makefile.in (headers): Change args to gennltvals.sh.
> 	* gennltvals.sh: Rewrite from scratch.
> 	* gentvals.sh: Delete.
> 	* nltvals.def: Regen.
> ---
>  sim/common/Makefile.in   |   2 +-
>  sim/common/gennltvals.sh | 313 +++++++++++++++++++++++++++------------
>  sim/common/gentvals.sh   |  74 ---------
>  sim/common/nltvals.def   |   7 +
>  4 files changed, 229 insertions(+), 167 deletions(-)
>  delete mode 100755 sim/common/gentvals.sh
> 
> diff --git a/sim/common/Makefile.in b/sim/common/Makefile.in
> index 4191b107e2fa..827cf1ef34b2 100644
> --- a/sim/common/Makefile.in
> +++ b/sim/common/Makefile.in
> @@ -82,7 +82,7 @@ headers:
>  	rootme=`pwd` ; \
>  	cd $(srcdir) ; \
>  	rm -f nltvals.new ; \
> -	$(SHELL) $(abs_srcdir)/gennltvals.sh $(SHELL) $(srcroot) "$(CPP_FOR_TARGET)" > nltvals.new ; \
> +	$(SHELL) $(abs_srcdir)/gennltvals.sh --cpp "$(CPP_FOR_TARGET)" $(srcroot) --output nltvals.new ; \
>  	$(SHELL) $(srcroot)/move-if-change nltvals.new nltvals.def
>  
>  .c.o:
> diff --git a/sim/common/gennltvals.sh b/sim/common/gennltvals.sh
> index 79180335b627..ce52cb3c55ca 100755
> --- a/sim/common/gennltvals.sh
> +++ b/sim/common/gennltvals.sh
> @@ -1,33 +1,135 @@
>  #! /bin/sh
> -# Generate nltvals.def, a file that describes various newlib/libgloss
> -# target values used by the host/target interface.
> +# Copyright (C) 1996-2021 Free Software Foundation, Inc.
>  #
> -# Syntax: /bin/sh gennltvals.sh shell srcroot cpp
> -
> -shell=$1
> -srcroot=$2
> -cpp=$3
> -
> -srccom=$srcroot/sim/common
> -if [ -d "${srcroot}/newlib" ]; then
> -  # If newlib is manually in the same source tree, use it.
> -  newlibroot=${srcroot}
> -else
> -  # Else assume it's alongside the gdb/binutils repo.
> -  newlibroot=${srcroot}/../newlib
> -fi
> -
> -echo '/* Newlib/libgloss macro values needed by remote target support.  */'
> -echo '/* This file is machine generated by gennltvals.sh.  */'
> -
> -$shell ${srccom}/gentvals.sh "" errno ${newlibroot}/newlib/libc/include \
> -	"errno.h sys/errno.h" 'E[[:upper:][:digit:]]*' "${cpp}"
> -
> -$shell ${srccom}/gentvals.sh "" signal ${newlibroot}/newlib/libc/include \
> -	"signal.h sys/signal.h" 'SIG[[:upper:][:digit:]]*' "${cpp}"
> -
> -$shell ${srccom}/gentvals.sh "" open ${newlibroot}/newlib/libc/include \
> -	"fcntl.h sys/fcntl.h sys/_default_fcntl.h" 'O_[[:upper:][:digit:]]*' "${cpp}"


Shouldn't there be a Copyright line here.  The old one was 1996-2021,
I guess even though this is a significant rewrite, its probably close
enough that the old date range should still apply.

Otherwise, LGTM.

Thanks,
Andrew

> +# This file is part of the GNU simulators.
> +#
> +# This program is free software; you can redistribute it and/or modify
> +# it under the terms of the GNU General Public License as published by
> +# the Free Software Foundation; either version 3 of the License, or
> +# (at your option) any later version.
> +#
> +# This program is distributed in the hope that it will be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License
> +# along with this program.  If not, see <http://www.gnu.org/licenses/>.
> +
> +# Display the tool usage and exit.
> +usage() {
> +  cat <<EOF
> +Usage: $0 [path to newlib source tree]
> +
> +Generate nltvals.def, a file that describes various newlib/libgloss target
> +values used by the host/target interface.  This needs to be rerun whenever
> +the newlib source changes.  Developers manually run it.
> +
> +If the path to newlib is not specified, it will be searched for in:
> +- the root of this source tree
> +- alongside this source tree
> +
> +Options:
> +  -o, --output <file>   Write to the specified file instead of stdout.
> +  --cpp <cpp>           The preprocessor to use.
> +  -h, --help            This text you're reading!
> +EOF
> +  if [ $# -gt 0 ]; then
> +    error "$*"
> +  fi
> +  exit 0
> +}
> +
> +# Show an error message and exit.
> +error() {
> +  echo "$0: error: $*" >&2
> +  exit 1
> +}
> +
> +ARG_CPP="cpp"
> +ARG_NEWLIB=""
> +ARG_OUTPUT=""
> +
> +# Emit the header for this generated def file.
> +gen_header() {
> +  cat <<EOF
> +/* Newlib/libgloss macro values needed by remote target support.  */
> +/* This file is machine generated by gennltvals.sh.  */
> +EOF
> +}
> +
> +# Extract constants from the specified files using a regular expression and the
> +# preprocessor.
> +gentvals() {
> +  target=$1
> +  type=$2
> +  dir=$3
> +  # FIXME: Would be nice to process #include's in these files.
> +  files=$4
> +  pattern=$5
> +
> +  # Require all files exist in order to regenerate properly.
> +  for f in ${files}; do
> +    if [ ! -f "${dir}/${f}" ]; then
> +      error "file does not exist: ${dir}/${f}"
> +    fi
> +  done
> +
> +  if [ -z "${target}" ]; then
> +    echo "#ifdef ${type}_defs"
> +  else
> +    echo "#ifdef NL_TARGET_${target}"
> +    echo "#ifdef ${type}_defs"
> +  fi
> +
> +  printf "/* from %s */\n" ${files}
> +
> +  if [ -z "${target}" ]; then
> +    echo "/* begin ${type} target macros */"
> +  else
> +    echo "/* begin ${target} ${type} target macros */"
> +  fi
> +
> +  # Extract all the symbols.
> +  (
> +  printf '#include <%s>\n' ${files}
> +  for f in ${files}; do
> +    sed -E -n -e "/^# *define[[:space:]]${pattern}/{\
> +        s|# *define[[:space:]](${pattern})[[:space:]]*([^[:space:]][^[:space:]]*).*$|\1|; \
> +        p}" \
> +      "${dir}/${f}"
> +  done |
> +  sort -u |
> +  while read sym; do
> +    echo "#ifdef ${sym}"
> +    echo "DEFVAL { \"${sym}\", ${sym} },"
> +    echo "#endif"
> +  done
> +  ) |
> +  ${ARG_CPP} -E -I"${dir}" |
> +  sed -E -n -e '/^DEFVAL/{s/DEFVAL//; s/[[:space:]]+/ /; p}'
> +
> +  if [ -z "${target}" ]; then
> +    echo "/* end ${type} target macros */"
> +    echo "#endif"
> +  else
> +    echo "/* end ${target} ${type} target macros */"
> +    echo "#endif"
> +    echo "#endif"
> +  fi
> +}
> +
> +# Generate the common C library constants.  No arch should override these.
> +gen_common() {
> +  gentvals "" errno ${ARG_NEWLIB}/newlib/libc/include \
> +    "errno.h sys/errno.h" 'E[[:upper:][:digit:]]*'
> +
> +  gentvals "" signal ${ARG_NEWLIB}/newlib/libc/include \
> +    "signal.h sys/signal.h" 'SIG[[:upper:][:digit:]]*'
> +
> +  gentvals "" open ${ARG_NEWLIB}/newlib/libc/include \
> +    "fcntl.h sys/fcntl.h sys/_default_fcntl.h" 'O_[[:upper:][:digit:]]*'
> +}
>  
>  # Unfortunately, each newlib/libgloss port has seen fit to define their own
>  # syscall.h file.  This means that system call numbers can vary for each port.
> @@ -35,67 +137,94 @@ $shell ${srccom}/gentvals.sh "" open ${newlibroot}/newlib/libc/include \
>  # If you want to try to improve this, please do, but don't break anything.
>  # Note that there is a standard syscall.h file (libgloss/syscall.h) now which
>  # hopefully more targets can use.
> -
> -dir=libgloss target=bfin
> -$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
> -	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
> -
> -dir=newlib/libc/sys/d10v/sys target=d10v
> -$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
> -	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
> -
> -# OBSOLETE dir=libgloss target=d30v
> -# OBSOLETE $shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
> -# OBSOLETE 	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
> -
> -dir=libgloss/cr16/sys target=cr16
> -$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
> -	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
> -
> -dir=libgloss target=fr30
> -$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
> -	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
> -
> -dir=libgloss target=frv
> -$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
> -	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
> -
> -dir=libgloss/i960 target=i960
> -$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
> -	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
> -
> -dir=libgloss target=m32r
> -$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
> -	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
> -
> -dir=libgloss/mcore target=mcore
> -$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
> -	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
> -
> -dir=libgloss target=mn10200
> -$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
> -	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
> -
> -dir=libgloss target=mn10300
> -$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
> -	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
> -
> -dir=libgloss target=msp430
> -$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
> -	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
> -
> -dir=libgloss target=sparc
> -$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
> -	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
> -
> -dir=libgloss/v850/sys target=v850
> -$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
> -	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
> -
> -dir=libgloss target=lm32
> -$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
> -	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
> -
> -dir=libgloss target=pru
> -$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
> -	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
> +#
> +# NB: New ports should use libgloss, not newlib.
> +gen_arch() {
> +  target="$1"
> +  dir="${2:-libgloss}"
> +  gentvals "${target}" sys "${ARG_NEWLIB}/${dir}" "syscall.h" 'SYS_[_[:alnum:]]*'
> +}
> +
> +gen_arches() {
> +  gen_arch bfin
> +  gen_arch d10v newlib/libc/sys/d10v/sys
> +  gen_arch cr16 libgloss/cr16/sys
> +  gen_arch fr30
> +  gen_arch frv
> +  gen_arch i960 libgloss/i960
> +  gen_arch m32r
> +  gen_arch mcore libgloss/mcore
> +  gen_arch mn10200
> +  gen_arch mn10300
> +  gen_arch msp430
> +  gen_arch sparc
> +  gen_arch v850 libgloss/v850/sys
> +  gen_arch lm32
> +  gen_arch pru
> +}
> +
> +# Process the script command line options.
> +parse_opts() {
> +  for arg in "$@"; do
> +    case ${arg} in
> +      --cpp)
> +        ARG_CPP="$2"
> +        shift
> +        ;;
> +      -o|--output)
> +        ARG_OUTPUT="$2"
> +        shift
> +        ;;
> +      -h|--help)
> +        usage
> +        ;;
> +      --)
> +        shift
> +        break
> +        ;;
> +      -*)
> +        usage "unknown option: $1"
> +        ;;
> +      *)
> +        break
> +        ;;
> +    esac
> +    shift
> +  done
> +
> +  if [ $# -gt 2 ]; then
> +    error "too many arguments: $*"
> +  elif [ $# -eq 1 ]; then
> +    ARG_NEWLIB="$1"
> +  fi
> +
> +  # Try to find newlib relative to our source tree.
> +  if [ -z "${ARG_NEWLIB}" ]; then
> +    srcroot="$(dirname "$0")/../.."
> +    if [ -d "${srcroot}/newlib" ]; then
> +      # If newlib is manually in the same source tree, use it.
> +      ARG_NEWLIB="${srcroot}/newlib"
> +    elif [ -d "${srcroot}/../newlib" ]; then
> +      # Or see if it's alongside the gdb/binutils repo.
> +      ARG_NEWLIB="${srcroot}/../newlib"
> +    else
> +      error "unable to find newlib"
> +    fi
> +  fi
> +}
> +
> +main() {
> +  # The error checking isn't perfect, but should be good enough for this script.
> +  set -e
> +
> +  parse_opts "$@"
> +
> +  if [ -n "${ARG_OUTPUT}" ]; then
> +    exec >"${ARG_OUTPUT}" || exit 1
> +  fi
> +
> +  gen_header
> +  gen_common
> +  gen_arches
> +}
> +main "$@"
> diff --git a/sim/common/gentvals.sh b/sim/common/gentvals.sh
> deleted file mode 100755
> index 6dd7315f30aa..000000000000
> --- a/sim/common/gentvals.sh
> +++ /dev/null
> @@ -1,74 +0,0 @@
> -#!/bin/sh
> -# Usage: gentvals.sh target type dir files pattern cpp
> -
> -target=$1
> -type=$2
> -dir=$3
> -# FIXME: Would be nice to process #include's in these files.
> -files=$4
> -pattern=$5
> -cpp=$6
> -
> -# FIXME: need trap to remove tmp files.
> -
> -rm -f tmpvals.list tmpvals.uniq
> -for f in $files
> -do
> -	if test -f $dir/$f ; then
> -		grep "#define[ 	]$pattern" $dir/$f | sed -e "s/^.*#define[ 	]\($pattern\)[ 	]*\([^ 	][^ 	]*\).*$/\1/" >> tmpvals.list
> -	fi
> -done
> -
> -sort <tmpvals.list | uniq >tmpvals.uniq
> -
> -rm -f tmpvals.h
> -for f in $files
> -do
> -	if test -f $dir/$f ; then
> -		echo "#include <$f>" >>tmpvals.h
> -	fi
> -done
> -
> -cat tmpvals.uniq |
> -while read sym
> -do
> -	echo "#ifdef $sym" >>tmpvals.h
> -	echo 'DEFVAL { "'$sym'", '$sym ' },' >>tmpvals.h
> -	echo "#endif" >>tmpvals.h
> -done
> -
> -if test -z "$target"
> -then
> -	echo "#ifdef ${type}_defs"
> -else
> -	echo "#ifdef NL_TARGET_$target"
> -	echo "#ifdef ${type}_defs"
> -fi
> -
> -for f in $files
> -do
> -	if test -f $dir/$f ; then
> -		echo "/* from $f */"
> -	fi
> -done
> -
> -if test -z "$target"
> -then
> -	echo "/* begin $type target macros */"
> -else
> -	echo "/* begin $target $type target macros */"
> -fi
> -
> -$cpp -I$dir tmpvals.h | grep DEFVAL | sed -e 's/DEFVAL//' -e 's/  / /'
> -
> -if test -z "$target"
> -then
> -	echo "/* end $type target macros */"
> -	echo "#endif"
> -else
> -	echo "/* end $target $type target macros */"
> -	echo "#endif"
> -	echo "#endif"
> -fi
> -
> -rm -f tmpvals.list tmpvals.uniq tmpvals.h
> diff --git a/sim/common/nltvals.def b/sim/common/nltvals.def
> index 92ccc9aded8b..08df7d5c4598 100644
> --- a/sim/common/nltvals.def
> +++ b/sim/common/nltvals.def
> @@ -115,6 +115,7 @@
>   { "SIGPROF", 27 },
>   { "SIGQUIT", 3 },
>   { "SIGSEGV", 11 },
> + { "SIGSTKSZ", 8192 },
>   { "SIGSTOP", 17 },
>   { "SIGSYS", 12 },
>   { "SIGTERM", 15 },
> @@ -138,12 +139,18 @@
>  /* begin open target macros */
>   { "O_ACCMODE", (0|1|2) },
>   { "O_APPEND", 0x0008 },
> + { "O_CLOEXEC", 0x40000 },
>   { "O_CREAT", 0x0200 },
> + { "O_DIRECT", 0x80000 },
> + { "O_DIRECTORY", 0x200000 },
>   { "O_EXCL", 0x0800 },
> + { "O_EXEC", 0x400000 },
>   { "O_NOCTTY", 0x8000 },
> + { "O_NOFOLLOW", 0x100000 },
>   { "O_NONBLOCK", 0x4000 },
>   { "O_RDONLY", 0 },
>   { "O_RDWR", 2 },
> + { "O_SEARCH", 0x400000 },
>   { "O_SYNC", 0x2000 },
>   { "O_TRUNC", 0x0400 },
>   { "O_WRONLY", 1 },
> -- 
> 2.28.0
> 

^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH] sim: common: delete configure & Makefile
  2021-01-17 10:36 ` [PATCH] sim: common: delete configure & Makefile Mike Frysinger via Gdb-patches
@ 2021-01-18 10:01   ` Andrew Burgess
  0 siblings, 0 replies; 14+ messages in thread
From: Andrew Burgess @ 2021-01-18 10:01 UTC (permalink / raw)
  To: Mike Frysinger; +Cc: gdb-patches

* Mike Frysinger via Gdb-patches <gdb-patches@sourceware.org> [2021-01-17 05:36:31 -0500]:

> This was mostly orphaned a while back, but left behind so people could
> still run `make headers`.  Merge that one target to the top sim dir and
> delete all the build logic.  This should avoid confusing people further.
> 
> sim/:
> 	* Makefile.in (abs_srcdir, srcroot, CPP): Define.
> 	(nltvals): New target.
> 	* README-HACKING: Change headers to nltvals.
> 
> sim/common/:
> 	* configure, configure.ac, Makefile.in: Delete.

LGTM.

Andrew

> ---
>  sim/Makefile.in         |   16 +
>  sim/README-HACKING      |    6 +-
>  sim/common/Makefile.in  |  135 --
>  sim/common/configure    | 3718 ---------------------------------------
>  sim/common/configure.ac |   34 -
>  sim/configure           |  179 +-
>  sim/configure.ac        |    1 +
>  7 files changed, 198 insertions(+), 3891 deletions(-)
>  delete mode 100644 sim/common/Makefile.in
>  delete mode 100755 sim/common/configure
>  delete mode 100644 sim/common/configure.ac
> 
> diff --git a/sim/Makefile.in b/sim/Makefile.in
> index ca41cb6f65e5..6c15b8b3a780 100644
> --- a/sim/Makefile.in
> +++ b/sim/Makefile.in
> @@ -19,6 +19,8 @@
>  
>  VPATH = @srcdir@
>  srcdir = @srcdir@
> +abs_srcdir = @abs_srcdir@
> +srcroot = $(abs_srcdir)/..
>  
>  prefix = @prefix@
>  exec_prefix = @exec_prefix@
> @@ -54,6 +56,7 @@ INSTALL_DATA = @INSTALL_DATA@
>  AR = @AR@
>  AR_FLAGS = rc
>  CC = @CC@
> +CPP = @CPP@
>  CFLAGS = @CFLAGS@
>  CC_FOR_BUILD = @CC_FOR_BUILD@
>  CFLAGS_FOR_BUILD = @CFLAGS_FOR_BUILD@
> @@ -221,6 +224,19 @@ Makefile: Makefile.in config.status
>  config.status: configure
>  	$(SHELL) ./config.status --recheck
>  
> +# Generate nltvals.def for newlib/libgloss using devo and build tree.
> +# This file is shipped with distributions so we build in the source dir.
> +# Use `make nltvals' to rebuild.
> +# Note: If gdb releases begin to contain target header files (not a good idea,
> +# but if they did ...), nltvals.def coud be generated at build time.
> +# An alternative is to slurp in the tables at runtime.
> +.PHONY: nltvals
> +nltvals:
> +	set -e ; \
> +	rm -f $(abs_srcdir)/common/nltvals.new ; \
> +	$(SHELL) $(abs_srcdir)/common/gennltvals.sh --cpp "$(CPP)" --output $(abs_srcdir)/common/nltvals.new --srcroot $(srcroot) ; \
> +	$(SHELL) $(srcroot)/move-if-change $(abs_srcdir)/common/nltvals.new $(abs_srcdir)/common/nltvals.def
> +
>  # Utility to run autoconf in each directory that uses the common framework.
>  # This is intended to be invoked in $srcdir as
>  # "make -f Makefile.in autoconf-common SHELL=/bin/sh".
> diff --git a/sim/README-HACKING b/sim/README-HACKING
> index 7f0f93e0ab49..583a559d2b0c 100644
> --- a/sim/README-HACKING
> +++ b/sim/README-HACKING
> @@ -191,10 +191,10 @@ convenience):
>  	$  cd /tmp/$$/build
>  	$  /tmp/$$/devo/configure --target=d10v-elf
>  
> -In the sim/common directory rebuild the headers:
> +In the sim/ directory rebuild the headers:
>  
> -	$  cd sim/common
> -	$  make headers
> +	$  cd sim/
> +	$  make nltvals
>  
>  To add a new target:
>  
> diff --git a/sim/common/Makefile.in b/sim/common/Makefile.in
> deleted file mode 100644
> index 33cd788737cb..000000000000
> --- a/sim/common/Makefile.in
> +++ /dev/null
> @@ -1,135 +0,0 @@
> -#    Makefile template for Configure for simulator common directory
> -#    Copyright (C) 1996-2021 Free Software Foundation, Inc.
> -# 
> -# This program is free software; you can redistribute it and/or modify
> -# it under the terms of the GNU General Public License as published by
> -# the Free Software Foundation; either version 3 of the License, or
> -# (at your option) any later version.
> -#
> -# This program is distributed in the hope that it will be useful,
> -# but WITHOUT ANY WARRANTY; without even the implied warranty of
> -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> -# GNU General Public License for more details.
> -#
> -# You should have received a copy of the GNU General Public License
> -# along with this program.  If not, see <http://www.gnu.org/licenses/>.
> -
> -default: all
> -
> -VPATH = @srcdir@
> -srcdir = @srcdir@
> -abs_srcdir = @abs_srcdir@
> -srcroot = $(abs_srcdir)/../..
> -
> -prefix = @prefix@
> -exec_prefix = @exec_prefix@
> -
> -host_alias = @host_alias@
> -target_alias = @target_alias@
> -program_transform_name = @program_transform_name@
> -bindir = @bindir@
> -
> -libdir = @libdir@
> -tooldir = $(libdir)/$(target_alias)
> -
> -datarootdir = @datarootdir@
> -datadir = @datadir@
> -mandir = @mandir@
> -man1dir = $(mandir)/man1
> -infodir = @infodir@
> -includedir = @includedir@
> -
> -SHELL = /bin/sh
> -
> -INSTALL = @INSTALL@
> -INSTALL_PROGRAM = @INSTALL_PROGRAM@
> -INSTALL_DATA = @INSTALL_DATA@
> -
> -CC = @CC@
> -CC_FOR_BUILD = @CC_FOR_BUILD@
> -CFLAGS = @CFLAGS@
> -
> -# These are used to rebuild nltvals.def.
> -CPP_FOR_TARGET = @CPP_FOR_TARGET@
> -TARGET_SUBDIR = @TARGET_SUBDIR@
> -
> -HDEFINES = @HDEFINES@
> -TDEFINES =
> -
> -CONFIG_CFLAGS = @DEFS@ $(HDEFINES) $(TDEFINES)
> -CSEARCH = -I. -I$(srcdir) -I$(srcroot)/include
> -ALL_CFLAGS = $(CFLAGS) $(CONFIG_CFLAGS) $(CSEARCH)
> -BUILD_CFLAGS = -g -O $(CSEARCH)
> -
> -AR = @AR@
> -AR_FLAGS = rc
> -RANLIB = @RANLIB@
> -MAKEINFO = makeinfo
> -
> -.NOEXPORT:
> -MAKEOVERRIDES=
> -
> -all:
> -
> -# Generate nltvals.def for newlib/libgloss using devo and build tree.
> -# This file is shipped with distributions so we build in the source dir.
> -# Use `make headers' to rebuild.
> -# Note: If gdb releases begin to contain target header files (not a good idea,
> -# but if they did ...), nltvals.def coud be generated at build time.
> -# An alternative is to slurp in the tables at runtime.
> -.PHONY: headers
> -headers:
> -	rootme=`pwd` ; \
> -	cd $(srcdir) ; \
> -	rm -f nltvals.new ; \
> -	$(SHELL) $(abs_srcdir)/gennltvals.sh --cpp "$(CPP_FOR_TARGET)" --srcroot $(srcroot) --output nltvals.new ; \
> -	$(SHELL) $(srcroot)/move-if-change nltvals.new nltvals.def
> -
> -.c.o:
> -	$(CC) -c $< $(ALL_CFLAGS)
> -
> -check:
> -
> -info:
> -clean-info:
> -install-info:
> -
> -tags etags: TAGS
> -
> -# Macros like EXTERN_SIM_CORE confuse tags.
> -# And the sim-n-foo.h files create functions that can't be found either.
> -TAGS: force
> -	cd $(srcdir) && \
> -	etags --regex '/^\([a-z_]+\) (/\1/' --regex '/^.*\/[*] TAGS: .*/' \
> -		*.c *.h
> -
> -clean:
> -	rm -f *.[oa] *~ core
> -
> -distclean mostlyclean maintainer-clean realclean: clean
> -	rm -f TAGS
> -	rm -f Makefile config.cache config.log config.status
> -
> -# Dummy target to force execution of dependent targets.
> -force:
> -
> -# Copy the files into directories where they will be run.
> -install: install-man
> -install-strip: install-man
> -
> -install-man: installdirs
> -	n=`echo run | sed '$(program_transform_name)'`; \
> -	$(INSTALL_DATA) $(srcdir)/run.1 $(DESTDIR)$(man1dir)/$$n.1
> -
> -installdirs:
> -	$(SHELL) $(srcdir)/../../mkinstalldirs $(DESTDIR)$(man1dir)
> -
> -Makefile: Makefile.in config.status
> -	$(SHELL) ./config.status
> -
> -config.status: configure
> -	$(SHELL) ./config.status --recheck
> -
> -config.h: stamp-h ; @true
> -stamp-h: config.in config.status
> -	CONFIG_FILES= CONFIG_HEADERS=config.h:config.in $(SHELL) ./config.status
> diff --git a/sim/common/configure b/sim/common/configure
> deleted file mode 100755
> index 8be2e6535f0c..000000000000
> --- a/sim/common/configure
> +++ /dev/null
> @@ -1,3718 +0,0 @@
> -#! /bin/sh
> -# Guess values for system-dependent variables and create Makefiles.
> -# Generated by GNU Autoconf 2.69.
> -#
> -#
> -# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
> -#
> -#
> -# This configure script is free software; the Free Software Foundation
> -# gives unlimited permission to copy, distribute and modify it.
> -## -------------------- ##
> -## M4sh Initialization. ##
> -## -------------------- ##
> -
> -# Be more Bourne compatible
> -DUALCASE=1; export DUALCASE # for MKS sh
> -if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
> -  emulate sh
> -  NULLCMD=:
> -  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
> -  # is contrary to our usage.  Disable this feature.
> -  alias -g '${1+"$@"}'='"$@"'
> -  setopt NO_GLOB_SUBST
> -else
> -  case `(set -o) 2>/dev/null` in #(
> -  *posix*) :
> -    set -o posix ;; #(
> -  *) :
> -     ;;
> -esac
> -fi
> -
> -
> -as_nl='
> -'
> -export as_nl
> -# Printing a long string crashes Solaris 7 /usr/bin/printf.
> -as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
> -as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
> -as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
> -# Prefer a ksh shell builtin over an external printf program on Solaris,
> -# but without wasting forks for bash or zsh.
> -if test -z "$BASH_VERSION$ZSH_VERSION" \
> -    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
> -  as_echo='print -r --'
> -  as_echo_n='print -rn --'
> -elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
> -  as_echo='printf %s\n'
> -  as_echo_n='printf %s'
> -else
> -  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
> -    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
> -    as_echo_n='/usr/ucb/echo -n'
> -  else
> -    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
> -    as_echo_n_body='eval
> -      arg=$1;
> -      case $arg in #(
> -      *"$as_nl"*)
> -	expr "X$arg" : "X\\(.*\\)$as_nl";
> -	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
> -      esac;
> -      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
> -    '
> -    export as_echo_n_body
> -    as_echo_n='sh -c $as_echo_n_body as_echo'
> -  fi
> -  export as_echo_body
> -  as_echo='sh -c $as_echo_body as_echo'
> -fi
> -
> -# The user is always right.
> -if test "${PATH_SEPARATOR+set}" != set; then
> -  PATH_SEPARATOR=:
> -  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
> -    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
> -      PATH_SEPARATOR=';'
> -  }
> -fi
> -
> -
> -# IFS
> -# We need space, tab and new line, in precisely that order.  Quoting is
> -# there to prevent editors from complaining about space-tab.
> -# (If _AS_PATH_WALK were called with IFS unset, it would disable word
> -# splitting by setting IFS to empty value.)
> -IFS=" ""	$as_nl"
> -
> -# Find who we are.  Look in the path if we contain no directory separator.
> -as_myself=
> -case $0 in #((
> -  *[\\/]* ) as_myself=$0 ;;
> -  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
> -for as_dir in $PATH
> -do
> -  IFS=$as_save_IFS
> -  test -z "$as_dir" && as_dir=.
> -    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
> -  done
> -IFS=$as_save_IFS
> -
> -     ;;
> -esac
> -# We did not find ourselves, most probably we were run as `sh COMMAND'
> -# in which case we are not to be found in the path.
> -if test "x$as_myself" = x; then
> -  as_myself=$0
> -fi
> -if test ! -f "$as_myself"; then
> -  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
> -  exit 1
> -fi
> -
> -# Unset variables that we do not need and which cause bugs (e.g. in
> -# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
> -# suppresses any "Segmentation fault" message there.  '((' could
> -# trigger a bug in pdksh 5.2.14.
> -for as_var in BASH_ENV ENV MAIL MAILPATH
> -do eval test x\${$as_var+set} = xset \
> -  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
> -done
> -PS1='$ '
> -PS2='> '
> -PS4='+ '
> -
> -# NLS nuisances.
> -LC_ALL=C
> -export LC_ALL
> -LANGUAGE=C
> -export LANGUAGE
> -
> -# CDPATH.
> -(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
> -
> -# Use a proper internal environment variable to ensure we don't fall
> -  # into an infinite loop, continuously re-executing ourselves.
> -  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
> -    _as_can_reexec=no; export _as_can_reexec;
> -    # We cannot yet assume a decent shell, so we have to provide a
> -# neutralization value for shells without unset; and this also
> -# works around shells that cannot unset nonexistent variables.
> -# Preserve -v and -x to the replacement shell.
> -BASH_ENV=/dev/null
> -ENV=/dev/null
> -(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
> -case $- in # ((((
> -  *v*x* | *x*v* ) as_opts=-vx ;;
> -  *v* ) as_opts=-v ;;
> -  *x* ) as_opts=-x ;;
> -  * ) as_opts= ;;
> -esac
> -exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
> -# Admittedly, this is quite paranoid, since all the known shells bail
> -# out after a failed `exec'.
> -$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
> -as_fn_exit 255
> -  fi
> -  # We don't want this to propagate to other subprocesses.
> -          { _as_can_reexec=; unset _as_can_reexec;}
> -if test "x$CONFIG_SHELL" = x; then
> -  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
> -  emulate sh
> -  NULLCMD=:
> -  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
> -  # is contrary to our usage.  Disable this feature.
> -  alias -g '\${1+\"\$@\"}'='\"\$@\"'
> -  setopt NO_GLOB_SUBST
> -else
> -  case \`(set -o) 2>/dev/null\` in #(
> -  *posix*) :
> -    set -o posix ;; #(
> -  *) :
> -     ;;
> -esac
> -fi
> -"
> -  as_required="as_fn_return () { (exit \$1); }
> -as_fn_success () { as_fn_return 0; }
> -as_fn_failure () { as_fn_return 1; }
> -as_fn_ret_success () { return 0; }
> -as_fn_ret_failure () { return 1; }
> -
> -exitcode=0
> -as_fn_success || { exitcode=1; echo as_fn_success failed.; }
> -as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
> -as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
> -as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
> -if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
> -
> -else
> -  exitcode=1; echo positional parameters were not saved.
> -fi
> -test x\$exitcode = x0 || exit 1
> -test -x / || exit 1"
> -  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
> -  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
> -  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
> -  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1"
> -  if (eval "$as_required") 2>/dev/null; then :
> -  as_have_required=yes
> -else
> -  as_have_required=no
> -fi
> -  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
> -
> -else
> -  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
> -as_found=false
> -for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
> -do
> -  IFS=$as_save_IFS
> -  test -z "$as_dir" && as_dir=.
> -  as_found=:
> -  case $as_dir in #(
> -	 /*)
> -	   for as_base in sh bash ksh sh5; do
> -	     # Try only shells that exist, to save several forks.
> -	     as_shell=$as_dir/$as_base
> -	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
> -		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
> -  CONFIG_SHELL=$as_shell as_have_required=yes
> -		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
> -  break 2
> -fi
> -fi
> -	   done;;
> -       esac
> -  as_found=false
> -done
> -$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
> -	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
> -  CONFIG_SHELL=$SHELL as_have_required=yes
> -fi; }
> -IFS=$as_save_IFS
> -
> -
> -      if test "x$CONFIG_SHELL" != x; then :
> -  export CONFIG_SHELL
> -             # We cannot yet assume a decent shell, so we have to provide a
> -# neutralization value for shells without unset; and this also
> -# works around shells that cannot unset nonexistent variables.
> -# Preserve -v and -x to the replacement shell.
> -BASH_ENV=/dev/null
> -ENV=/dev/null
> -(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
> -case $- in # ((((
> -  *v*x* | *x*v* ) as_opts=-vx ;;
> -  *v* ) as_opts=-v ;;
> -  *x* ) as_opts=-x ;;
> -  * ) as_opts= ;;
> -esac
> -exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
> -# Admittedly, this is quite paranoid, since all the known shells bail
> -# out after a failed `exec'.
> -$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
> -exit 255
> -fi
> -
> -    if test x$as_have_required = xno; then :
> -  $as_echo "$0: This script requires a shell more modern than all"
> -  $as_echo "$0: the shells that I found on your system."
> -  if test x${ZSH_VERSION+set} = xset ; then
> -    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
> -    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
> -  else
> -    $as_echo "$0: Please tell bug-autoconf@gnu.org about your system,
> -$0: including any error possibly output before this
> -$0: message. Then install a modern shell, or manually run
> -$0: the script under such a shell if you do have one."
> -  fi
> -  exit 1
> -fi
> -fi
> -fi
> -SHELL=${CONFIG_SHELL-/bin/sh}
> -export SHELL
> -# Unset more variables known to interfere with behavior of common tools.
> -CLICOLOR_FORCE= GREP_OPTIONS=
> -unset CLICOLOR_FORCE GREP_OPTIONS
> -
> -## --------------------- ##
> -## M4sh Shell Functions. ##
> -## --------------------- ##
> -# as_fn_unset VAR
> -# ---------------
> -# Portably unset VAR.
> -as_fn_unset ()
> -{
> -  { eval $1=; unset $1;}
> -}
> -as_unset=as_fn_unset
> -
> -# as_fn_set_status STATUS
> -# -----------------------
> -# Set $? to STATUS, without forking.
> -as_fn_set_status ()
> -{
> -  return $1
> -} # as_fn_set_status
> -
> -# as_fn_exit STATUS
> -# -----------------
> -# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
> -as_fn_exit ()
> -{
> -  set +e
> -  as_fn_set_status $1
> -  exit $1
> -} # as_fn_exit
> -
> -# as_fn_mkdir_p
> -# -------------
> -# Create "$as_dir" as a directory, including parents if necessary.
> -as_fn_mkdir_p ()
> -{
> -
> -  case $as_dir in #(
> -  -*) as_dir=./$as_dir;;
> -  esac
> -  test -d "$as_dir" || eval $as_mkdir_p || {
> -    as_dirs=
> -    while :; do
> -      case $as_dir in #(
> -      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
> -      *) as_qdir=$as_dir;;
> -      esac
> -      as_dirs="'$as_qdir' $as_dirs"
> -      as_dir=`$as_dirname -- "$as_dir" ||
> -$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
> -	 X"$as_dir" : 'X\(//\)[^/]' \| \
> -	 X"$as_dir" : 'X\(//\)$' \| \
> -	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
> -$as_echo X"$as_dir" |
> -    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
> -	    s//\1/
> -	    q
> -	  }
> -	  /^X\(\/\/\)[^/].*/{
> -	    s//\1/
> -	    q
> -	  }
> -	  /^X\(\/\/\)$/{
> -	    s//\1/
> -	    q
> -	  }
> -	  /^X\(\/\).*/{
> -	    s//\1/
> -	    q
> -	  }
> -	  s/.*/./; q'`
> -      test -d "$as_dir" && break
> -    done
> -    test -z "$as_dirs" || eval "mkdir $as_dirs"
> -  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
> -
> -
> -} # as_fn_mkdir_p
> -
> -# as_fn_executable_p FILE
> -# -----------------------
> -# Test if FILE is an executable regular file.
> -as_fn_executable_p ()
> -{
> -  test -f "$1" && test -x "$1"
> -} # as_fn_executable_p
> -# as_fn_append VAR VALUE
> -# ----------------------
> -# Append the text in VALUE to the end of the definition contained in VAR. Take
> -# advantage of any shell optimizations that allow amortized linear growth over
> -# repeated appends, instead of the typical quadratic growth present in naive
> -# implementations.
> -if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
> -  eval 'as_fn_append ()
> -  {
> -    eval $1+=\$2
> -  }'
> -else
> -  as_fn_append ()
> -  {
> -    eval $1=\$$1\$2
> -  }
> -fi # as_fn_append
> -
> -# as_fn_arith ARG...
> -# ------------------
> -# Perform arithmetic evaluation on the ARGs, and store the result in the
> -# global $as_val. Take advantage of shells that can avoid forks. The arguments
> -# must be portable across $(()) and expr.
> -if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
> -  eval 'as_fn_arith ()
> -  {
> -    as_val=$(( $* ))
> -  }'
> -else
> -  as_fn_arith ()
> -  {
> -    as_val=`expr "$@" || test $? -eq 1`
> -  }
> -fi # as_fn_arith
> -
> -
> -# as_fn_error STATUS ERROR [LINENO LOG_FD]
> -# ----------------------------------------
> -# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
> -# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
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> -as_fn_error ()
> -{
> -  as_status=$1; test $as_status -eq 0 && as_status=1
> -  if test "$4"; then
> -    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
> -    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
> -  fi
> -  $as_echo "$as_me: error: $2" >&2
> -  as_fn_exit $as_status
> -} # as_fn_error
> -
> -if expr a : '\(a\)' >/dev/null 2>&1 &&
> -   test "X`expr 00001 : '.*\(...\)'`" = X001; then
> -  as_expr=expr
> -else
> -  as_expr=false
> -fi
> -
> -if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
> -  as_basename=basename
> -else
> -  as_basename=false
> -fi
> -
> -if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
> -  as_dirname=dirname
> -else
> -  as_dirname=false
> -fi
> -
> -as_me=`$as_basename -- "$0" ||
> -$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
> -	 X"$0" : 'X\(//\)$' \| \
> -	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
> -$as_echo X/"$0" |
> -    sed '/^.*\/\([^/][^/]*\)\/*$/{
> -	    s//\1/
> -	    q
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> -	  /^X\/\(\/\/\)$/{
> -	    s//\1/
> -	    q
> -	  }
> -	  /^X\/\(\/\).*/{
> -	    s//\1/
> -	    q
> -	  }
> -	  s/.*/./; q'`
> -
> -# Avoid depending upon Character Ranges.
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> -as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
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> -as_cr_alnum=$as_cr_Letters$as_cr_digits
> -
> -
> -  as_lineno_1=$LINENO as_lineno_1a=$LINENO
> -  as_lineno_2=$LINENO as_lineno_2a=$LINENO
> -  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
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> -  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
> -  sed -n '
> -    p
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> -  ' <$as_myself |
> -    sed '
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> -  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
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> -  # in an infinite loop.  This has already happened in practice.
> -  _as_can_reexec=no; export _as_can_reexec
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> -  # (the dirname of $[0] is not the place where we might find the
> -  # original and so on.  Autoconf is especially sensitive to this).
> -  . "./$as_me.lineno"
> -  # Exit status is that of the last command.
> -  exit
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> -
> -ECHO_C= ECHO_N= ECHO_T=
> -case `echo -n x` in #(((((
> --n*)
> -  case `echo 'xy\c'` in
> -  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
> -  xy)  ECHO_C='\c';;
> -  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
> -       ECHO_T='	';;
> -  esac;;
> -*)
> -  ECHO_N='-n';;
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> -
> -rm -f conf$$ conf$$.exe conf$$.file
> -if test -d conf$$.dir; then
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> -  rm -f conf$$.dir
> -  mkdir conf$$.dir 2>/dev/null
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> -    # ... but there are two gotchas:
> -    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
> -    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
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> -
> -cat >>confdefs.h <<_ACEOF
> -#define PACKAGE_STRING "$PACKAGE_STRING"
> -_ACEOF
> -
> -cat >>confdefs.h <<_ACEOF
> -#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
> -_ACEOF
> -
> -cat >>confdefs.h <<_ACEOF
> -#define PACKAGE_URL "$PACKAGE_URL"
> -_ACEOF
> -
> -
> -# Let the site file select an alternate cache file if it wants to.
> -# Prefer an explicitly selected file to automatically selected ones.
> -ac_site_file1=NONE
> -ac_site_file2=NONE
> -if test -n "$CONFIG_SITE"; then
> -  # We do not want a PATH search for config.site.
> -  case $CONFIG_SITE in #((
> -    -*)  ac_site_file1=./$CONFIG_SITE;;
> -    */*) ac_site_file1=$CONFIG_SITE;;
> -    *)   ac_site_file1=./$CONFIG_SITE;;
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> -  ac_site_file1=$prefix/share/config.site
> -  ac_site_file2=$prefix/etc/config.site
> -else
> -  ac_site_file1=$ac_default_prefix/share/config.site
> -  ac_site_file2=$ac_default_prefix/etc/config.site
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> -for ac_site_file in "$ac_site_file1" "$ac_site_file2"
> -do
> -  test "x$ac_site_file" = xNONE && continue
> -  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
> -    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
> -$as_echo "$as_me: loading site script $ac_site_file" >&6;}
> -    sed 's/^/| /' "$ac_site_file" >&5
> -    . "$ac_site_file" \
> -      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
> -$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
> -as_fn_error $? "failed to load site script $ac_site_file
> -See \`config.log' for more details" "$LINENO" 5; }
> -  fi
> -done
> -
> -if test -r "$cache_file"; then
> -  # Some versions of bash will fail to source /dev/null (special files
> -  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
> -  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
> -    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
> -$as_echo "$as_me: loading cache $cache_file" >&6;}
> -    case $cache_file in
> -      [\\/]* | ?:[\\/]* ) . "$cache_file";;
> -      *)                      . "./$cache_file";;
> -    esac
> -  fi
> -else
> -  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
> -$as_echo "$as_me: creating cache $cache_file" >&6;}
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> -
> -# Check that the precious variables saved in the cache have kept the same
> -# value.
> -ac_cache_corrupted=false
> -for ac_var in $ac_precious_vars; do
> -  eval ac_old_set=\$ac_cv_env_${ac_var}_set
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> -  eval ac_old_val=\$ac_cv_env_${ac_var}_value
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> -    set,)
> -      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
> -$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
> -      ac_cache_corrupted=: ;;
> -    ,set)
> -      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
> -$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
> -      ac_cache_corrupted=: ;;
> -    ,);;
> -    *)
> -      if test "x$ac_old_val" != "x$ac_new_val"; then
> -	# differences in whitespace do not lead to failure.
> -	ac_old_val_w=`echo x $ac_old_val`
> -	ac_new_val_w=`echo x $ac_new_val`
> -	if test "$ac_old_val_w" != "$ac_new_val_w"; then
> -	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
> -$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
> -	  ac_cache_corrupted=:
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> -	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
> -$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
> -	  eval $ac_var=\$ac_old_val
> -	fi
> -	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
> -$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
> -	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
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> -      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
> -      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
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> -if $ac_cache_corrupted; then
> -  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
> -$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
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> -fi
> -## -------------------- ##
> -## Main body of script. ##
> -## -------------------- ##
> -
> -ac_ext=c
> -ac_cpp='$CPP $CPPFLAGS'
> -ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
> -ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
> -ac_compiler_gnu=$ac_cv_c_compiler_gnu
> -
> -
> -
> -
> -
> -
> -ac_ext=c
> -ac_cpp='$CPP $CPPFLAGS'
> -ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
> -ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
> -ac_compiler_gnu=$ac_cv_c_compiler_gnu
> -if test -n "$ac_tool_prefix"; then
> -  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
> -set dummy ${ac_tool_prefix}gcc; ac_word=$2
> -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
> -$as_echo_n "checking for $ac_word... " >&6; }
> -if ${ac_cv_prog_CC+:} false; then :
> -  $as_echo_n "(cached) " >&6
> -else
> -  if test -n "$CC"; then
> -  ac_cv_prog_CC="$CC" # Let the user override the test.
> -else
> -as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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> -do
> -  IFS=$as_save_IFS
> -  test -z "$as_dir" && as_dir=.
> -    for ac_exec_ext in '' $ac_executable_extensions; do
> -  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
> -    ac_cv_prog_CC="${ac_tool_prefix}gcc"
> -    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
> -    break 2
> -  fi
> -done
> -  done
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> -
> -fi
> -fi
> -CC=$ac_cv_prog_CC
> -if test -n "$CC"; then
> -  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
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> -else
> -  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
> -$as_echo "no" >&6; }
> -fi
> -
> -
> -fi
> -if test -z "$ac_cv_prog_CC"; then
> -  ac_ct_CC=$CC
> -  # Extract the first word of "gcc", so it can be a program name with args.
> -set dummy gcc; ac_word=$2
> -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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> -if ${ac_cv_prog_ac_ct_CC+:} false; then :
> -  $as_echo_n "(cached) " >&6
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> -  if test -n "$ac_ct_CC"; then
> -  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
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> -as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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> -    ac_cv_prog_ac_ct_CC="gcc"
> -    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
> -    break 2
> -  fi
> -done
> -  done
> -IFS=$as_save_IFS
> -
> -fi
> -fi
> -ac_ct_CC=$ac_cv_prog_ac_ct_CC
> -if test -n "$ac_ct_CC"; then
> -  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
> -$as_echo "$ac_ct_CC" >&6; }
> -else
> -  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
> -$as_echo "no" >&6; }
> -fi
> -
> -  if test "x$ac_ct_CC" = x; then
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> -  else
> -    case $cross_compiling:$ac_tool_warned in
> -yes:)
> -{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
> -$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
> -ac_tool_warned=yes ;;
> -esac
> -    CC=$ac_ct_CC
> -  fi
> -else
> -  CC="$ac_cv_prog_CC"
> -fi
> -
> -if test -z "$CC"; then
> -          if test -n "$ac_tool_prefix"; then
> -    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
> -set dummy ${ac_tool_prefix}cc; ac_word=$2
> -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
> -$as_echo_n "checking for $ac_word... " >&6; }
> -if ${ac_cv_prog_CC+:} false; then :
> -  $as_echo_n "(cached) " >&6
> -else
> -  if test -n "$CC"; then
> -  ac_cv_prog_CC="$CC" # Let the user override the test.
> -else
> -as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
> -for as_dir in $PATH
> -do
> -  IFS=$as_save_IFS
> -  test -z "$as_dir" && as_dir=.
> -    for ac_exec_ext in '' $ac_executable_extensions; do
> -  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
> -    ac_cv_prog_CC="${ac_tool_prefix}cc"
> -    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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> -  fi
> -done
> -  done
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> -
> -fi
> -fi
> -CC=$ac_cv_prog_CC
> -if test -n "$CC"; then
> -  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
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> -else
> -  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
> -$as_echo "no" >&6; }
> -fi
> -
> -
> -  fi
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> -if test -z "$CC"; then
> -  # Extract the first word of "cc", so it can be a program name with args.
> -set dummy cc; ac_word=$2
> -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
> -$as_echo_n "checking for $ac_word... " >&6; }
> -if ${ac_cv_prog_CC+:} false; then :
> -  $as_echo_n "(cached) " >&6
> -else
> -  if test -n "$CC"; then
> -  ac_cv_prog_CC="$CC" # Let the user override the test.
> -else
> -  ac_prog_rejected=no
> -as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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> -do
> -  IFS=$as_save_IFS
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> -    for ac_exec_ext in '' $ac_executable_extensions; do
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> -    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
> -       ac_prog_rejected=yes
> -       continue
> -     fi
> -    ac_cv_prog_CC="cc"
> -    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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> -IFS=$as_save_IFS
> -
> -if test $ac_prog_rejected = yes; then
> -  # We found a bogon in the path, so make sure we never use it.
> -  set dummy $ac_cv_prog_CC
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> -  if test $# != 0; then
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> -    # first if we set CC to just the basename; use the full file name.
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> -fi
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> -CC=$ac_cv_prog_CC
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> -  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
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> -  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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> -if test -z "$CC"; then
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> -  for ac_prog in cl.exe
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> -    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
> -    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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> -  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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> -if ${ac_cv_prog_ac_ct_CC+:} false; then :
> -  $as_echo_n "(cached) " >&6
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> -  shift
> -  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
> -  CONFIG_SHELL='$SHELL'
> -  export CONFIG_SHELL
> -  exec "\$@"
> -fi
> -
> -_ACEOF
> -cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
> -exec 5>>config.log
> -{
> -  echo
> -  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
> -## Running $as_me. ##
> -_ASBOX
> -  $as_echo "$ac_log"
> -} >&5
> -
> -_ACEOF
> -cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
> -_ACEOF
> -
> -cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
> -
> -# Handling of arguments.
> -for ac_config_target in $ac_config_targets
> -do
> -  case $ac_config_target in
> -    "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
> -
> -  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
> -  esac
> -done
> -
> -
> -# If the user did not use the arguments to specify the items to instantiate,
> -# then the envvar interface is used.  Set only those that are not.
> -# We use the long form for the default assignment because of an extremely
> -# bizarre bug on SunOS 4.1.3.
> -if $ac_need_defaults; then
> -  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
> -fi
> -
> -# Have a temporary directory for convenience.  Make it in the build tree
> -# simply because there is no reason against having it here, and in addition,
> -# creating and moving files from /tmp can sometimes cause problems.
> -# Hook for its removal unless debugging.
> -# Note that there is a small window in which the directory will not be cleaned:
> -# after its creation but before its name has been assigned to `$tmp'.
> -$debug ||
> -{
> -  tmp= ac_tmp=
> -  trap 'exit_status=$?
> -  : "${ac_tmp:=$tmp}"
> -  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
> -' 0
> -  trap 'as_fn_exit 1' 1 2 13 15
> -}
> -# Create a (secure) tmp directory for tmp files.
> -
> -{
> -  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
> -  test -d "$tmp"
> -}  ||
> -{
> -  tmp=./conf$$-$RANDOM
> -  (umask 077 && mkdir "$tmp")
> -} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
> -ac_tmp=$tmp
> -
> -# Set up the scripts for CONFIG_FILES section.
> -# No need to generate them if there are no CONFIG_FILES.
> -# This happens for instance with `./config.status config.h'.
> -if test -n "$CONFIG_FILES"; then
> -
> -
> -ac_cr=`echo X | tr X '\015'`
> -# On cygwin, bash can eat \r inside `` if the user requested igncr.
> -# But we know of no other shell where ac_cr would be empty at this
> -# point, so we can use a bashism as a fallback.
> -if test "x$ac_cr" = x; then
> -  eval ac_cr=\$\'\\r\'
> -fi
> -ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
> -if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
> -  ac_cs_awk_cr='\\r'
> -else
> -  ac_cs_awk_cr=$ac_cr
> -fi
> -
> -echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
> -_ACEOF
> -
> -
> -{
> -  echo "cat >conf$$subs.awk <<_ACEOF" &&
> -  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
> -  echo "_ACEOF"
> -} >conf$$subs.sh ||
> -  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
> -ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
> -ac_delim='%!_!# '
> -for ac_last_try in false false false false false :; do
> -  . ./conf$$subs.sh ||
> -    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
> -
> -  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
> -  if test $ac_delim_n = $ac_delim_num; then
> -    break
> -  elif $ac_last_try; then
> -    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
> -  else
> -    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
> -  fi
> -done
> -rm -f conf$$subs.sh
> -
> -cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
> -cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
> -_ACEOF
> -sed -n '
> -h
> -s/^/S["/; s/!.*/"]=/
> -p
> -g
> -s/^[^!]*!//
> -:repl
> -t repl
> -s/'"$ac_delim"'$//
> -t delim
> -:nl
> -h
> -s/\(.\{148\}\)..*/\1/
> -t more1
> -s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
> -p
> -n
> -b repl
> -:more1
> -s/["\\]/\\&/g; s/^/"/; s/$/"\\/
> -p
> -g
> -s/.\{148\}//
> -t nl
> -:delim
> -h
> -s/\(.\{148\}\)..*/\1/
> -t more2
> -s/["\\]/\\&/g; s/^/"/; s/$/"/
> -p
> -b
> -:more2
> -s/["\\]/\\&/g; s/^/"/; s/$/"\\/
> -p
> -g
> -s/.\{148\}//
> -t delim
> -' <conf$$subs.awk | sed '
> -/^[^""]/{
> -  N
> -  s/\n//
> -}
> -' >>$CONFIG_STATUS || ac_write_fail=1
> -rm -f conf$$subs.awk
> -cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
> -_ACAWK
> -cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
> -  for (key in S) S_is_set[key] = 1
> -  FS = "\a"
> -
> -}
> -{
> -  line = $ 0
> -  nfields = split(line, field, "@")
> -  substed = 0
> -  len = length(field[1])
> -  for (i = 2; i < nfields; i++) {
> -    key = field[i]
> -    keylen = length(key)
> -    if (S_is_set[key]) {
> -      value = S[key]
> -      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
> -      len += length(value) + length(field[++i])
> -      substed = 1
> -    } else
> -      len += 1 + keylen
> -  }
> -
> -  print line
> -}
> -
> -_ACAWK
> -_ACEOF
> -cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
> -if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
> -  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
> -else
> -  cat
> -fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
> -  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
> -_ACEOF
> -
> -# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
> -# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
> -# trailing colons and then remove the whole line if VPATH becomes empty
> -# (actually we leave an empty line to preserve line numbers).
> -if test "x$srcdir" = x.; then
> -  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
> -h
> -s///
> -s/^/:/
> -s/[	 ]*$/:/
> -s/:\$(srcdir):/:/g
> -s/:\${srcdir}:/:/g
> -s/:@srcdir@:/:/g
> -s/^:*//
> -s/:*$//
> -x
> -s/\(=[	 ]*\).*/\1/
> -G
> -s/\n//
> -s/^[^=]*=[	 ]*$//
> -}'
> -fi
> -
> -cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
> -fi # test -n "$CONFIG_FILES"
> -
> -
> -eval set X "  :F $CONFIG_FILES      "
> -shift
> -for ac_tag
> -do
> -  case $ac_tag in
> -  :[FHLC]) ac_mode=$ac_tag; continue;;
> -  esac
> -  case $ac_mode$ac_tag in
> -  :[FHL]*:*);;
> -  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
> -  :[FH]-) ac_tag=-:-;;
> -  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
> -  esac
> -  ac_save_IFS=$IFS
> -  IFS=:
> -  set x $ac_tag
> -  IFS=$ac_save_IFS
> -  shift
> -  ac_file=$1
> -  shift
> -
> -  case $ac_mode in
> -  :L) ac_source=$1;;
> -  :[FH])
> -    ac_file_inputs=
> -    for ac_f
> -    do
> -      case $ac_f in
> -      -) ac_f="$ac_tmp/stdin";;
> -      *) # Look for the file first in the build tree, then in the source tree
> -	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
> -	 # because $ac_f cannot contain `:'.
> -	 test -f "$ac_f" ||
> -	   case $ac_f in
> -	   [\\/$]*) false;;
> -	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
> -	   esac ||
> -	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
> -      esac
> -      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
> -      as_fn_append ac_file_inputs " '$ac_f'"
> -    done
> -
> -    # Let's still pretend it is `configure' which instantiates (i.e., don't
> -    # use $as_me), people would be surprised to read:
> -    #    /* config.h.  Generated by config.status.  */
> -    configure_input='Generated from '`
> -	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
> -	`' by configure.'
> -    if test x"$ac_file" != x-; then
> -      configure_input="$ac_file.  $configure_input"
> -      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
> -$as_echo "$as_me: creating $ac_file" >&6;}
> -    fi
> -    # Neutralize special characters interpreted by sed in replacement strings.
> -    case $configure_input in #(
> -    *\&* | *\|* | *\\* )
> -       ac_sed_conf_input=`$as_echo "$configure_input" |
> -       sed 's/[\\\\&|]/\\\\&/g'`;; #(
> -    *) ac_sed_conf_input=$configure_input;;
> -    esac
> -
> -    case $ac_tag in
> -    *:-:* | *:-) cat >"$ac_tmp/stdin" \
> -      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
> -    esac
> -    ;;
> -  esac
> -
> -  ac_dir=`$as_dirname -- "$ac_file" ||
> -$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
> -	 X"$ac_file" : 'X\(//\)[^/]' \| \
> -	 X"$ac_file" : 'X\(//\)$' \| \
> -	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
> -$as_echo X"$ac_file" |
> -    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
> -	    s//\1/
> -	    q
> -	  }
> -	  /^X\(\/\/\)[^/].*/{
> -	    s//\1/
> -	    q
> -	  }
> -	  /^X\(\/\/\)$/{
> -	    s//\1/
> -	    q
> -	  }
> -	  /^X\(\/\).*/{
> -	    s//\1/
> -	    q
> -	  }
> -	  s/.*/./; q'`
> -  as_dir="$ac_dir"; as_fn_mkdir_p
> -  ac_builddir=.
> -
> -case "$ac_dir" in
> -.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
> -*)
> -  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
> -  # A ".." for each directory in $ac_dir_suffix.
> -  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
> -  case $ac_top_builddir_sub in
> -  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
> -  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
> -  esac ;;
> -esac
> -ac_abs_top_builddir=$ac_pwd
> -ac_abs_builddir=$ac_pwd$ac_dir_suffix
> -# for backward compatibility:
> -ac_top_builddir=$ac_top_build_prefix
> -
> -case $srcdir in
> -  .)  # We are building in place.
> -    ac_srcdir=.
> -    ac_top_srcdir=$ac_top_builddir_sub
> -    ac_abs_top_srcdir=$ac_pwd ;;
> -  [\\/]* | ?:[\\/]* )  # Absolute name.
> -    ac_srcdir=$srcdir$ac_dir_suffix;
> -    ac_top_srcdir=$srcdir
> -    ac_abs_top_srcdir=$srcdir ;;
> -  *) # Relative name.
> -    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
> -    ac_top_srcdir=$ac_top_build_prefix$srcdir
> -    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
> -esac
> -ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
> -
> -
> -  case $ac_mode in
> -  :F)
> -  #
> -  # CONFIG_FILE
> -  #
> -
> -_ACEOF
> -
> -cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
> -# If the template does not know about datarootdir, expand it.
> -# FIXME: This hack should be removed a few years after 2.60.
> -ac_datarootdir_hack=; ac_datarootdir_seen=
> -ac_sed_dataroot='
> -/datarootdir/ {
> -  p
> -  q
> -}
> -/@datadir@/p
> -/@docdir@/p
> -/@infodir@/p
> -/@localedir@/p
> -/@mandir@/p'
> -case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
> -*datarootdir*) ac_datarootdir_seen=yes;;
> -*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
> -  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
> -$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
> -_ACEOF
> -cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
> -  ac_datarootdir_hack='
> -  s&@datadir@&$datadir&g
> -  s&@docdir@&$docdir&g
> -  s&@infodir@&$infodir&g
> -  s&@localedir@&$localedir&g
> -  s&@mandir@&$mandir&g
> -  s&\\\${datarootdir}&$datarootdir&g' ;;
> -esac
> -_ACEOF
> -
> -# Neutralize VPATH when `$srcdir' = `.'.
> -# Shell code in configure.ac might set extrasub.
> -# FIXME: do we really want to maintain this feature?
> -cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
> -ac_sed_extra="$ac_vpsub
> -$extrasub
> -_ACEOF
> -cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
> -:t
> -/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
> -s|@configure_input@|$ac_sed_conf_input|;t t
> -s&@top_builddir@&$ac_top_builddir_sub&;t t
> -s&@top_build_prefix@&$ac_top_build_prefix&;t t
> -s&@srcdir@&$ac_srcdir&;t t
> -s&@abs_srcdir@&$ac_abs_srcdir&;t t
> -s&@top_srcdir@&$ac_top_srcdir&;t t
> -s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
> -s&@builddir@&$ac_builddir&;t t
> -s&@abs_builddir@&$ac_abs_builddir&;t t
> -s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
> -$ac_datarootdir_hack
> -"
> -eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
> -  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
> -
> -test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
> -  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
> -  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
> -      "$ac_tmp/out"`; test -z "$ac_out"; } &&
> -  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
> -which seems to be undefined.  Please make sure it is defined" >&5
> -$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
> -which seems to be undefined.  Please make sure it is defined" >&2;}
> -
> -  rm -f "$ac_tmp/stdin"
> -  case $ac_file in
> -  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
> -  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
> -  esac \
> -  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
> - ;;
> -
> -
> -
> -  esac
> -
> -done # for ac_tag
> -
> -
> -as_fn_exit 0
> -_ACEOF
> -ac_clean_files=$ac_clean_files_save
> -
> -test $ac_write_fail = 0 ||
> -  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
> -
> -
> -# configure is writing to config.log, and then calls config.status.
> -# config.status does its own redirection, appending to config.log.
> -# Unfortunately, on DOS this fails, as config.log is still kept open
> -# by configure, so config.status won't be able to write to it; its
> -# output is simply discarded.  So we exec the FD to /dev/null,
> -# effectively closing config.log, so it can be properly (re)opened and
> -# appended to by config.status.  When coming back to configure, we
> -# need to make the FD available again.
> -if test "$no_create" != yes; then
> -  ac_cs_success=:
> -  ac_config_status_args=
> -  test "$silent" = yes &&
> -    ac_config_status_args="$ac_config_status_args --quiet"
> -  exec 5>/dev/null
> -  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
> -  exec 5>>config.log
> -  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
> -  # would make configure fail if this is the last instruction.
> -  $ac_cs_success || as_fn_exit 1
> -fi
> -if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
> -  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
> -$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
> -fi
> -
> diff --git a/sim/common/configure.ac b/sim/common/configure.ac
> deleted file mode 100644
> index ec4ee203743b..000000000000
> --- a/sim/common/configure.ac
> +++ /dev/null
> @@ -1,34 +0,0 @@
> -dnl Process this file with autoconf to produce a configure script.
> -AC_INIT(Makefile.in)
> -
> -AC_PROG_CC
> -
> -# Put a useful copy of CPP_FOR_TARGET in Makefile.
> -# This is only used to build the target values header files.  These files are
> -# shipped with distributions so CPP_FOR_TARGET only needs to work in
> -# developer's trees.  This value is borrowed from ../../Makefile.in.
> -CPP_FOR_TARGET="\` \
> -  if test -f \$\${rootme}/../../gcc/Makefile ; then \
> -    if test -f \$\${rootme}/../../\$(TARGET_SUBDIR)/newlib/Makefile ; then \
> -      echo \$\${rootme}/../../gcc/xgcc -B\$\${rootme}/../../gcc/ -idirafter \$\${rootme}/../../\$(TARGET_SUBDIR)/newlib/targ-include -idirafter \$(srcroot)/newlib/libc/include -nostdinc; \
> -    else \
> -      echo \$\${rootme}/../../gcc/xgcc -B\$\${rootme}/../../gcc/; \
> -    fi; \
> -  else \
> -    if test '\$(host_canonical)' = '\$(target_canonical)' ; then \
> -      echo \$(CC); \
> -    else \
> -      t='\$(program_transform_name)'; echo gcc | sed -e 's/x/x/' \$\$t; \
> -    fi; \
> -  fi\` -E"
> -AC_SUBST(CPP_FOR_TARGET)
> -
> -# Set TARGET_SUBDIR, needed by CPP_FOR_TARGET.
> -if test x"${host}" = x"${target}" ; then
> -	TARGET_SUBDIR="."
> -else
> -	TARGET_SUBDIR=${target_alias}
> -fi
> -AC_SUBST(TARGET_SUBDIR)
> -
> -AC_OUTPUT(Makefile)
> diff --git a/sim/configure b/sim/configure
> index 7093cb1f1cf6..28ed5d7691d5 100755
> --- a/sim/configure
> +++ b/sim/configure
> @@ -590,6 +590,7 @@ subdirs
>  CFLAGS_FOR_BUILD
>  CC_FOR_BUILD
>  HDEFINES
> +CPP
>  target_os
>  target_vendor
>  target_cpu
> @@ -664,7 +665,8 @@ CC
>  CFLAGS
>  LDFLAGS
>  LIBS
> -CPPFLAGS'
> +CPPFLAGS
> +CPP'
>  ac_subdirs_all='aarch64
>  arm
>  avr
> @@ -1322,6 +1324,7 @@ Some influential environment variables:
>    LIBS        libraries to pass to the linker, e.g. -l<library>
>    CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
>                you have headers in a nonstandard directory <include dir>
> +  CPP         C preprocessor
>  
>  Use these variables to override the choices made by `configure' or to help
>  it to find libraries and programs with nonstandard names/locations.
> @@ -1440,6 +1443,43 @@ fi
>    as_fn_set_status $ac_retval
>  
>  } # ac_fn_c_try_compile
> +
> +# ac_fn_c_try_cpp LINENO
> +# ----------------------
> +# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
> +ac_fn_c_try_cpp ()
> +{
> +  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
> +  if { { ac_try="$ac_cpp conftest.$ac_ext"
> +case "(($ac_try" in
> +  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
> +  *) ac_try_echo=$ac_try;;
> +esac
> +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
> +$as_echo "$ac_try_echo"; } >&5
> +  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
> +  ac_status=$?
> +  if test -s conftest.err; then
> +    grep -v '^ *+' conftest.err >conftest.er1
> +    cat conftest.er1 >&5
> +    mv -f conftest.er1 conftest.err
> +  fi
> +  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
> +  test $ac_status = 0; } > conftest.i && {
> +	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
> +	 test ! -s conftest.err
> +       }; then :
> +  ac_retval=0
> +else
> +  $as_echo "$as_me: failed program was:" >&5
> +sed 's/^/| /' conftest.$ac_ext >&5
> +
> +    ac_retval=1
> +fi
> +  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
> +  as_fn_set_status $ac_retval
> +
> +} # ac_fn_c_try_cpp
>  cat >config.log <<_ACEOF
>  This file contains any messages produced by compilers while
>  running configure, to aid debugging if configure makes a mistake.
> @@ -3552,6 +3592,143 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
>  ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
>  ac_compiler_gnu=$ac_cv_c_compiler_gnu
>  
> +ac_ext=c
> +ac_cpp='$CPP $CPPFLAGS'
> +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
> +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
> +ac_compiler_gnu=$ac_cv_c_compiler_gnu
> +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
> +$as_echo_n "checking how to run the C preprocessor... " >&6; }
> +# On Suns, sometimes $CPP names a directory.
> +if test -n "$CPP" && test -d "$CPP"; then
> +  CPP=
> +fi
> +if test -z "$CPP"; then
> +  if ${ac_cv_prog_CPP+:} false; then :
> +  $as_echo_n "(cached) " >&6
> +else
> +      # Double quotes because CPP needs to be expanded
> +    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
> +    do
> +      ac_preproc_ok=false
> +for ac_c_preproc_warn_flag in '' yes
> +do
> +  # Use a header file that comes with gcc, so configuring glibc
> +  # with a fresh cross-compiler works.
> +  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
> +  # <limits.h> exists even on freestanding compilers.
> +  # On the NeXT, cc -E runs the code through the compiler's parser,
> +  # not just through cpp. "Syntax error" is here to catch this case.
> +  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
> +/* end confdefs.h.  */
> +#ifdef __STDC__
> +# include <limits.h>
> +#else
> +# include <assert.h>
> +#endif
> +		     Syntax error
> +_ACEOF
> +if ac_fn_c_try_cpp "$LINENO"; then :
> +
> +else
> +  # Broken: fails on valid input.
> +continue
> +fi
> +rm -f conftest.err conftest.i conftest.$ac_ext
> +
> +  # OK, works on sane cases.  Now check whether nonexistent headers
> +  # can be detected and how.
> +  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
> +/* end confdefs.h.  */
> +#include <ac_nonexistent.h>
> +_ACEOF
> +if ac_fn_c_try_cpp "$LINENO"; then :
> +  # Broken: success on invalid input.
> +continue
> +else
> +  # Passes both tests.
> +ac_preproc_ok=:
> +break
> +fi
> +rm -f conftest.err conftest.i conftest.$ac_ext
> +
> +done
> +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
> +rm -f conftest.i conftest.err conftest.$ac_ext
> +if $ac_preproc_ok; then :
> +  break
> +fi
> +
> +    done
> +    ac_cv_prog_CPP=$CPP
> +
> +fi
> +  CPP=$ac_cv_prog_CPP
> +else
> +  ac_cv_prog_CPP=$CPP
> +fi
> +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
> +$as_echo "$CPP" >&6; }
> +ac_preproc_ok=false
> +for ac_c_preproc_warn_flag in '' yes
> +do
> +  # Use a header file that comes with gcc, so configuring glibc
> +  # with a fresh cross-compiler works.
> +  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
> +  # <limits.h> exists even on freestanding compilers.
> +  # On the NeXT, cc -E runs the code through the compiler's parser,
> +  # not just through cpp. "Syntax error" is here to catch this case.
> +  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
> +/* end confdefs.h.  */
> +#ifdef __STDC__
> +# include <limits.h>
> +#else
> +# include <assert.h>
> +#endif
> +		     Syntax error
> +_ACEOF
> +if ac_fn_c_try_cpp "$LINENO"; then :
> +
> +else
> +  # Broken: fails on valid input.
> +continue
> +fi
> +rm -f conftest.err conftest.i conftest.$ac_ext
> +
> +  # OK, works on sane cases.  Now check whether nonexistent headers
> +  # can be detected and how.
> +  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
> +/* end confdefs.h.  */
> +#include <ac_nonexistent.h>
> +_ACEOF
> +if ac_fn_c_try_cpp "$LINENO"; then :
> +  # Broken: success on invalid input.
> +continue
> +else
> +  # Passes both tests.
> +ac_preproc_ok=:
> +break
> +fi
> +rm -f conftest.err conftest.i conftest.$ac_ext
> +
> +done
> +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
> +rm -f conftest.i conftest.err conftest.$ac_ext
> +if $ac_preproc_ok; then :
> +
> +else
> +  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
> +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
> +as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
> +See \`config.log' for more details" "$LINENO" 5; }
> +fi
> +
> +ac_ext=c
> +ac_cpp='$CPP $CPPFLAGS'
> +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
> +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
> +ac_compiler_gnu=$ac_cv_c_compiler_gnu
> +
>  
>  
>  AR=${AR-ar}
> diff --git a/sim/configure.ac b/sim/configure.ac
> index 7de8b99888bf..99364cac7f4e 100644
> --- a/sim/configure.ac
> +++ b/sim/configure.ac
> @@ -10,6 +10,7 @@ AC_CHECK_TOOL(RANLIB, ranlib, :)
>  AC_CANONICAL_SYSTEM
>  AC_ARG_PROGRAM
>  AC_PROG_CC
> +AC_PROG_CPP
>  AC_SUBST(CFLAGS)
>  AC_SUBST(HDEFINES)
>  AR=${AR-ar}
> -- 
> 2.28.0
> 

^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH] sim: common: modernize gennltvals.sh
  2021-01-17 10:10 [PATCH] sim: common: modernize gennltvals.sh Mike Frysinger via Gdb-patches
  2021-01-17 10:36 ` [PATCH] sim: common: delete configure & Makefile Mike Frysinger via Gdb-patches
  2021-01-18 10:00 ` [PATCH] sim: common: modernize gennltvals.sh Andrew Burgess
@ 2021-01-18 14:04 ` Simon Marchi via Gdb-patches
  2021-01-18 17:13   ` Mike Frysinger via Gdb-patches
  2021-01-18 17:20 ` [PATCH v2] " Mike Frysinger via Gdb-patches
  3 siblings, 1 reply; 14+ messages in thread
From: Simon Marchi via Gdb-patches @ 2021-01-18 14:04 UTC (permalink / raw)
  To: Mike Frysinger, gdb-patches

On 2021-01-17 5:10 a.m., Mike Frysinger via Gdb-patches wrote:
> It's not 1996 anymore, so stop writing shell code like it is, and
> rewrite it with modern POSIX shell standards.  This makes it much
> more user friendly.
> 
> Then regenerate the file with latest newlib sources to verify.
> 
> 	* Makefile.in (headers): Change args to gennltvals.sh.
> 	* gennltvals.sh: Rewrite from scratch.
> 	* gentvals.sh: Delete.
> 	* nltvals.def: Regen.

I suggest running shellcheck on the file an fixing what it complains about.

Simon

^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH] sim: common: modernize gennltvals.sh
  2021-01-18 10:00 ` [PATCH] sim: common: modernize gennltvals.sh Andrew Burgess
@ 2021-01-18 17:09   ` Mike Frysinger via Gdb-patches
  0 siblings, 0 replies; 14+ messages in thread
From: Mike Frysinger via Gdb-patches @ 2021-01-18 17:09 UTC (permalink / raw)
  To: Andrew Burgess; +Cc: gdb-patches

On 18 Jan 2021 10:00, Andrew Burgess wrote:
> * Mike Frysinger via Gdb-patches [2021-01-17 05:10:44 -0500]:
> > It's not 1996 anymore, so stop writing shell code like it is, and
> > --- a/sim/common/gennltvals.sh
> > +++ b/sim/common/gennltvals.sh
> > @@ -1,33 +1,135 @@
> >  #! /bin/sh
> > -# Generate nltvals.def, a file that describes various newlib/libgloss
> > -# target values used by the host/target interface.
> > +# Copyright (C) 1996-2021 Free Software Foundation, Inc.
> >  #
> > -# Syntax: /bin/sh gennltvals.sh shell srcroot cpp
> > -
> > -shell=$1
> > -srcroot=$2
> > -cpp=$3
> > -
> > -srccom=$srcroot/sim/common
> > -if [ -d "${srcroot}/newlib" ]; then
> > -  # If newlib is manually in the same source tree, use it.
> > -  newlibroot=${srcroot}
> > -else
> > -  # Else assume it's alongside the gdb/binutils repo.
> > -  newlibroot=${srcroot}/../newlib
> > -fi
> > -
> > -echo '/* Newlib/libgloss macro values needed by remote target support.  */'
> > -echo '/* This file is machine generated by gennltvals.sh.  */'
> > -
> > -$shell ${srccom}/gentvals.sh "" errno ${newlibroot}/newlib/libc/include \
> > -	"errno.h sys/errno.h" 'E[[:upper:][:digit:]]*' "${cpp}"
> > -
> > -$shell ${srccom}/gentvals.sh "" signal ${newlibroot}/newlib/libc/include \
> > -	"signal.h sys/signal.h" 'SIG[[:upper:][:digit:]]*' "${cpp}"
> > -
> > -$shell ${srccom}/gentvals.sh "" open ${newlibroot}/newlib/libc/include \
> > -	"fcntl.h sys/fcntl.h sys/_default_fcntl.h" 'O_[[:upper:][:digit:]]*' "${cpp}"
> 
> Shouldn't there be a Copyright line here.  The old one was 1996-2021,
> I guess even though this is a significant rewrite, its probably close
> enough that the old date range should still apply.

there is one already ... look at the top of this diff.
this hunk isn't a pure delete as git notices the first 3 lines.
-mike

^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH] sim: common: modernize gennltvals.sh
  2021-01-18 14:04 ` Simon Marchi via Gdb-patches
@ 2021-01-18 17:13   ` Mike Frysinger via Gdb-patches
  2021-01-18 17:19     ` Simon Marchi via Gdb-patches
  0 siblings, 1 reply; 14+ messages in thread
From: Mike Frysinger via Gdb-patches @ 2021-01-18 17:13 UTC (permalink / raw)
  To: Simon Marchi; +Cc: gdb-patches

On 18 Jan 2021 09:04, Simon Marchi wrote:
> On 2021-01-17 5:10 a.m., Mike Frysinger via Gdb-patches wrote:
> > It's not 1996 anymore, so stop writing shell code like it is, and
> > rewrite it with modern POSIX shell standards.  This makes it much
> > more user friendly.
> > 
> > Then regenerate the file with latest newlib sources to verify.
> > 
> > 	* Makefile.in (headers): Change args to gennltvals.sh.
> > 	* gennltvals.sh: Rewrite from scratch.
> > 	* gentvals.sh: Delete.
> > 	* nltvals.def: Regen.
> 
> I suggest running shellcheck on the file an fixing what it complains about.

i had run shellcheck and the only warnings (about unquoted expansion)
i didn't think we worth fixing because of the limited scope of the
script.  the variable in question isn't accepting user input, it's
operating on fixed inputs, and if we restrict ourselves to POSIX
shell (which i think we do), then our options are limited, and imo
the alternatives make it harder to read/understand.

i debated writing this in python3, but that seems even less uncommon
in the tree as a build tool.
-mike

^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH] sim: common: modernize gennltvals.sh
  2021-01-18 17:13   ` Mike Frysinger via Gdb-patches
@ 2021-01-18 17:19     ` Simon Marchi via Gdb-patches
  2021-01-18 17:52       ` Mike Frysinger via Gdb-patches
  0 siblings, 1 reply; 14+ messages in thread
From: Simon Marchi via Gdb-patches @ 2021-01-18 17:19 UTC (permalink / raw)
  To: gdb-patches

On 2021-01-18 12:13 p.m., Mike Frysinger wrote:
> i had run shellcheck and the only warnings (about unquoted expansion)
> i didn't think we worth fixing because of the limited scope of the
> script.  the variable in question isn't accepting user input, it's
> operating on fixed inputs, and if we restrict ourselves to POSIX
> shell (which i think we do), then our options are limited, and imo
> the alternatives make it harder to read/understand.

Even considering this, I think it's worth just quoting the variables
and getting rid the warnings.  It's trivial, and it would make any
future (more important) warning more apparent.

Anyway, it's just a suggestion, it's up to you :).

Simon

^ permalink raw reply	[flat|nested] 14+ messages in thread

* [PATCH v2] sim: common: modernize gennltvals.sh
  2021-01-17 10:10 [PATCH] sim: common: modernize gennltvals.sh Mike Frysinger via Gdb-patches
                   ` (2 preceding siblings ...)
  2021-01-18 14:04 ` Simon Marchi via Gdb-patches
@ 2021-01-18 17:20 ` Mike Frysinger via Gdb-patches
  3 siblings, 0 replies; 14+ messages in thread
From: Mike Frysinger via Gdb-patches @ 2021-01-18 17:20 UTC (permalink / raw)
  To: gdb-patches

It's not 1996 anymore, so stop writing shell code like it is, and
rewrite it with modern POSIX shell standards.  This makes it much
more user friendly.

Then regenerate the file with latest newlib sources to verify.
---
Here's what I pushed.  And here's the final shellcheck warnings:

In sim/common/gennltvals.sh line 87:
  printf "/* from %s */\n" ${files}
                           ^------^ SC2086: Double quote to prevent globbing and word splitting.

Did you mean:
  printf "/* from %s */\n" "${files}"


In sim/common/gennltvals.sh line 97:
  printf '#include <%s>\n' ${files}
                           ^------^ SC2086: Double quote to prevent globbing and word splitting.

Did you mean:
  printf '#include <%s>\n' "${files}"

For more information:
  https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...

 sim/ChangeLog            |   7 +
 sim/common/Makefile.in   |   2 +-
 sim/common/gennltvals.sh | 321 ++++++++++++++++++++++++++++-----------
 sim/common/gentvals.sh   |  74 ---------
 sim/common/nltvals.def   |   7 +
 5 files changed, 244 insertions(+), 167 deletions(-)
 delete mode 100755 sim/common/gentvals.sh

diff --git a/sim/ChangeLog b/sim/ChangeLog
index d8f530996e69..fd368d6d67f6 100644
--- a/sim/ChangeLog
+++ b/sim/ChangeLog
@@ -1,3 +1,10 @@
+2021-01-18  Mike Frysinger  <vapier@gentoo.org>
+
+	* Makefile.in (headers): Change args to gennltvals.sh.
+	* gennltvals.sh: Rewrite from scratch.
+	* gentvals.sh: Delete.
+	* nltvals.def: Regen.
+
 2021-01-15  Mike Frysinger  <vapier@gentoo.org>
 
 	* configure.ac: Delete AC_CONFIG_SUBDIRS(testsuite) call.
diff --git a/sim/common/Makefile.in b/sim/common/Makefile.in
index 4191b107e2fa..33cd788737cb 100644
--- a/sim/common/Makefile.in
+++ b/sim/common/Makefile.in
@@ -82,7 +82,7 @@ headers:
 	rootme=`pwd` ; \
 	cd $(srcdir) ; \
 	rm -f nltvals.new ; \
-	$(SHELL) $(abs_srcdir)/gennltvals.sh $(SHELL) $(srcroot) "$(CPP_FOR_TARGET)" > nltvals.new ; \
+	$(SHELL) $(abs_srcdir)/gennltvals.sh --cpp "$(CPP_FOR_TARGET)" --srcroot $(srcroot) --output nltvals.new ; \
 	$(SHELL) $(srcroot)/move-if-change nltvals.new nltvals.def
 
 .c.o:
diff --git a/sim/common/gennltvals.sh b/sim/common/gennltvals.sh
index 79180335b627..005fa5b2368c 100755
--- a/sim/common/gennltvals.sh
+++ b/sim/common/gennltvals.sh
@@ -1,33 +1,137 @@
 #! /bin/sh
-# Generate nltvals.def, a file that describes various newlib/libgloss
-# target values used by the host/target interface.
+# Copyright (C) 1996-2021 Free Software Foundation, Inc.
 #
-# Syntax: /bin/sh gennltvals.sh shell srcroot cpp
-
-shell=$1
-srcroot=$2
-cpp=$3
-
-srccom=$srcroot/sim/common
-if [ -d "${srcroot}/newlib" ]; then
-  # If newlib is manually in the same source tree, use it.
-  newlibroot=${srcroot}
-else
-  # Else assume it's alongside the gdb/binutils repo.
-  newlibroot=${srcroot}/../newlib
-fi
-
-echo '/* Newlib/libgloss macro values needed by remote target support.  */'
-echo '/* This file is machine generated by gennltvals.sh.  */'
-
-$shell ${srccom}/gentvals.sh "" errno ${newlibroot}/newlib/libc/include \
-	"errno.h sys/errno.h" 'E[[:upper:][:digit:]]*' "${cpp}"
-
-$shell ${srccom}/gentvals.sh "" signal ${newlibroot}/newlib/libc/include \
-	"signal.h sys/signal.h" 'SIG[[:upper:][:digit:]]*' "${cpp}"
-
-$shell ${srccom}/gentvals.sh "" open ${newlibroot}/newlib/libc/include \
-	"fcntl.h sys/fcntl.h sys/_default_fcntl.h" 'O_[[:upper:][:digit:]]*' "${cpp}"
+# This file is part of the GNU simulators.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Display the tool usage and exit.
+usage() {
+  cat <<EOF
+Usage: $0 [path to newlib source tree]
+
+Generate nltvals.def, a file that describes various newlib/libgloss target
+values used by the host/target interface.  This needs to be rerun whenever
+the newlib source changes.  Developers manually run it.
+
+If the path to newlib is not specified, it will be searched for in:
+- the root of this source tree
+- alongside this source tree
+
+Options:
+  -o, --output <file>   Write to the specified file instead of stdout.
+  --cpp <cpp>           The preprocessor to use.
+  --srcroot <dir>       The root of this source tree.
+  -h, --help            This text you're reading!
+EOF
+  if [ $# -gt 0 ]; then
+    error "$*"
+  fi
+  exit 0
+}
+
+# Show an error message and exit.
+error() {
+  echo "$0: error: $*" >&2
+  exit 1
+}
+
+ARG_CPP="cpp"
+ARG_SRCROOT=""
+ARG_NEWLIB=""
+ARG_OUTPUT=""
+
+# Emit the header for this generated def file.
+gen_header() {
+  cat <<EOF
+/* Newlib/libgloss macro values needed by remote target support.  */
+/* This file is machine generated by gennltvals.sh.  */
+EOF
+}
+
+# Extract constants from the specified files using a regular expression and the
+# preprocessor.
+gentvals() {
+  target=$1
+  type=$2
+  dir=$3
+  # FIXME: Would be nice to process #include's in these files.
+  files=$4
+  pattern=$5
+
+  # Require all files exist in order to regenerate properly.
+  for f in ${files}; do
+    if [ ! -f "${dir}/${f}" ]; then
+      error "file does not exist: ${dir}/${f}"
+    fi
+  done
+
+  if [ -z "${target}" ]; then
+    echo "#ifdef ${type}_defs"
+  else
+    echo "#ifdef NL_TARGET_${target}"
+    echo "#ifdef ${type}_defs"
+  fi
+
+  printf "/* from %s */\n" ${files}
+
+  if [ -z "${target}" ]; then
+    echo "/* begin ${type} target macros */"
+  else
+    echo "/* begin ${target} ${type} target macros */"
+  fi
+
+  # Extract all the symbols.
+  (
+  printf '#include <%s>\n' ${files}
+  for f in ${files}; do
+    sed -E -n -e "/^# *define[[:space:]]${pattern}/{\
+        s|# *define[[:space:]](${pattern})[[:space:]]*([^[:space:]][^[:space:]]*).*$|\1|; \
+        p}" \
+      "${dir}/${f}"
+  done |
+  sort -u |
+  while read -r sym; do
+    echo "#ifdef ${sym}"
+    echo "DEFVAL { \"${sym}\", ${sym} },"
+    echo "#endif"
+  done
+  ) |
+  ${ARG_CPP} -E -I"${dir}" - |
+  sed -E -n -e '/^DEFVAL/{s/DEFVAL//; s/[[:space:]]+/ /; p}'
+
+  if [ -z "${target}" ]; then
+    echo "/* end ${type} target macros */"
+    echo "#endif"
+  else
+    echo "/* end ${target} ${type} target macros */"
+    echo "#endif"
+    echo "#endif"
+  fi
+}
+
+# Generate the common C library constants.  No arch should override these.
+gen_common() {
+  gentvals "" errno ${ARG_NEWLIB}/newlib/libc/include \
+    "errno.h sys/errno.h" 'E[[:upper:][:digit:]]*'
+
+  gentvals "" signal ${ARG_NEWLIB}/newlib/libc/include \
+    "signal.h sys/signal.h" 'SIG[[:upper:][:digit:]]*'
+
+  gentvals "" open ${ARG_NEWLIB}/newlib/libc/include \
+    "fcntl.h sys/fcntl.h sys/_default_fcntl.h" 'O_[[:upper:][:digit:]]*'
+}
 
 # Unfortunately, each newlib/libgloss port has seen fit to define their own
 # syscall.h file.  This means that system call numbers can vary for each port.
@@ -35,67 +139,100 @@ $shell ${srccom}/gentvals.sh "" open ${newlibroot}/newlib/libc/include \
 # If you want to try to improve this, please do, but don't break anything.
 # Note that there is a standard syscall.h file (libgloss/syscall.h) now which
 # hopefully more targets can use.
-
-dir=libgloss target=bfin
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=newlib/libc/sys/d10v/sys target=d10v
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-# OBSOLETE dir=libgloss target=d30v
-# OBSOLETE $shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-# OBSOLETE 	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss/cr16/sys target=cr16
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=fr30
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=frv
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss/i960 target=i960
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=m32r
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss/mcore target=mcore
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=mn10200
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=mn10300
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=msp430
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=sparc
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss/v850/sys target=v850
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=lm32
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
-
-dir=libgloss target=pru
-$shell ${srccom}/gentvals.sh $target sys ${newlibroot}/$dir \
-	"syscall.h" 'SYS_[_[:alnum:]]*' "${cpp}"
+#
+# NB: New ports should use libgloss, not newlib.
+gen_arch() {
+  target="$1"
+  dir="${2:-libgloss}"
+  gentvals "${target}" sys "${ARG_NEWLIB}/${dir}" "syscall.h" 'SYS_[_[:alnum:]]*'
+}
+
+gen_arches() {
+  gen_arch bfin
+  gen_arch d10v newlib/libc/sys/d10v/sys
+  gen_arch cr16 libgloss/cr16/sys
+  gen_arch fr30
+  gen_arch frv
+  gen_arch i960 libgloss/i960
+  gen_arch m32r
+  gen_arch mcore libgloss/mcore
+  gen_arch mn10200
+  gen_arch mn10300
+  gen_arch msp430
+  gen_arch sparc
+  gen_arch v850 libgloss/v850/sys
+  gen_arch lm32
+  gen_arch pru
+}
+
+# Process the script command line options.
+parse_opts() {
+  while [ $# -gt 0 ]; do
+    case $1 in
+      --cpp)
+        ARG_CPP="$2"
+        shift
+        ;;
+      -o|--output)
+        ARG_OUTPUT="$2"
+        shift
+        ;;
+      --srcroot)
+        ARG_SRCROOT="$2"
+        shift
+        ;;
+      -h|--help)
+        usage
+        ;;
+      --)
+        shift
+        break
+        ;;
+      -*)
+        usage "unknown option: $1"
+        ;;
+      *)
+        break
+        ;;
+    esac
+    shift
+  done
+
+  if [ $# -gt 2 ]; then
+    error "too many arguments: $*"
+  elif [ $# -eq 1 ]; then
+    ARG_NEWLIB="$1"
+  fi
+
+  # Try to find newlib relative to our source tree.
+  if [ -z "${ARG_NEWLIB}" ]; then
+    if [ -z "${ARG_SRCROOT}" ]; then
+      ARG_SRCROOT="$(dirname "$0")/../.."
+    fi
+    if [ -d "${ARG_SRCROOT}/newlib" ]; then
+      # If newlib is manually in the same source tree, use it.
+      ARG_NEWLIB="${ARG_SRCROOT}/newlib"
+    elif [ -d "${ARG_SRCROOT}/../newlib" ]; then
+      # Or see if it's alongside the gdb/binutils repo.
+      ARG_NEWLIB="${ARG_SRCROOT}/../newlib"
+    else
+      error "unable to find newlib"
+    fi
+  fi
+}
+
+main() {
+  # The error checking isn't perfect, but should be good enough for this script.
+  set -e
+
+  parse_opts "$@"
+
+  if [ -n "${ARG_OUTPUT}" ]; then
+    exec >"${ARG_OUTPUT}" || exit 1
+  fi
+
+  gen_header
+  gen_common
+  gen_arches
+}
+main "$@"
diff --git a/sim/common/gentvals.sh b/sim/common/gentvals.sh
deleted file mode 100755
index 6dd7315f30aa..000000000000
--- a/sim/common/gentvals.sh
+++ /dev/null
@@ -1,74 +0,0 @@
-#!/bin/sh
-# Usage: gentvals.sh target type dir files pattern cpp
-
-target=$1
-type=$2
-dir=$3
-# FIXME: Would be nice to process #include's in these files.
-files=$4
-pattern=$5
-cpp=$6
-
-# FIXME: need trap to remove tmp files.
-
-rm -f tmpvals.list tmpvals.uniq
-for f in $files
-do
-	if test -f $dir/$f ; then
-		grep "#define[ 	]$pattern" $dir/$f | sed -e "s/^.*#define[ 	]\($pattern\)[ 	]*\([^ 	][^ 	]*\).*$/\1/" >> tmpvals.list
-	fi
-done
-
-sort <tmpvals.list | uniq >tmpvals.uniq
-
-rm -f tmpvals.h
-for f in $files
-do
-	if test -f $dir/$f ; then
-		echo "#include <$f>" >>tmpvals.h
-	fi
-done
-
-cat tmpvals.uniq |
-while read sym
-do
-	echo "#ifdef $sym" >>tmpvals.h
-	echo 'DEFVAL { "'$sym'", '$sym ' },' >>tmpvals.h
-	echo "#endif" >>tmpvals.h
-done
-
-if test -z "$target"
-then
-	echo "#ifdef ${type}_defs"
-else
-	echo "#ifdef NL_TARGET_$target"
-	echo "#ifdef ${type}_defs"
-fi
-
-for f in $files
-do
-	if test -f $dir/$f ; then
-		echo "/* from $f */"
-	fi
-done
-
-if test -z "$target"
-then
-	echo "/* begin $type target macros */"
-else
-	echo "/* begin $target $type target macros */"
-fi
-
-$cpp -I$dir tmpvals.h | grep DEFVAL | sed -e 's/DEFVAL//' -e 's/  / /'
-
-if test -z "$target"
-then
-	echo "/* end $type target macros */"
-	echo "#endif"
-else
-	echo "/* end $target $type target macros */"
-	echo "#endif"
-	echo "#endif"
-fi
-
-rm -f tmpvals.list tmpvals.uniq tmpvals.h
diff --git a/sim/common/nltvals.def b/sim/common/nltvals.def
index 92ccc9aded8b..08df7d5c4598 100644
--- a/sim/common/nltvals.def
+++ b/sim/common/nltvals.def
@@ -115,6 +115,7 @@
  { "SIGPROF", 27 },
  { "SIGQUIT", 3 },
  { "SIGSEGV", 11 },
+ { "SIGSTKSZ", 8192 },
  { "SIGSTOP", 17 },
  { "SIGSYS", 12 },
  { "SIGTERM", 15 },
@@ -138,12 +139,18 @@
 /* begin open target macros */
  { "O_ACCMODE", (0|1|2) },
  { "O_APPEND", 0x0008 },
+ { "O_CLOEXEC", 0x40000 },
  { "O_CREAT", 0x0200 },
+ { "O_DIRECT", 0x80000 },
+ { "O_DIRECTORY", 0x200000 },
  { "O_EXCL", 0x0800 },
+ { "O_EXEC", 0x400000 },
  { "O_NOCTTY", 0x8000 },
+ { "O_NOFOLLOW", 0x100000 },
  { "O_NONBLOCK", 0x4000 },
  { "O_RDONLY", 0 },
  { "O_RDWR", 2 },
+ { "O_SEARCH", 0x400000 },
  { "O_SYNC", 0x2000 },
  { "O_TRUNC", 0x0400 },
  { "O_WRONLY", 1 },
-- 
2.28.0


^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH] sim: common: modernize gennltvals.sh
  2021-01-18 17:19     ` Simon Marchi via Gdb-patches
@ 2021-01-18 17:52       ` Mike Frysinger via Gdb-patches
  2021-01-18 18:08         ` Simon Marchi via Gdb-patches
  0 siblings, 1 reply; 14+ messages in thread
From: Mike Frysinger via Gdb-patches @ 2021-01-18 17:52 UTC (permalink / raw)
  To: Simon Marchi; +Cc: gdb-patches

On 18 Jan 2021 12:19, Simon Marchi via Gdb-patches wrote:
> On 2021-01-18 12:13 p.m., Mike Frysinger wrote:
> > i had run shellcheck and the only warnings (about unquoted expansion)
> > i didn't think we worth fixing because of the limited scope of the
> > script.  the variable in question isn't accepting user input, it's
> > operating on fixed inputs, and if we restrict ourselves to POSIX
> > shell (which i think we do), then our options are limited, and imo
> > the alternatives make it harder to read/understand.
> 
> Even considering this, I think it's worth just quoting the variables
> and getting rid the warnings.  It's trivial, and it would make any
> future (more important) warning more apparent.

to be clear, it isn't a style issue, it's a correctness issue.
adding the quotes will break the script.

here's the warning:
  printf '#include <%s>\n' ${files}
                           ^------^ SC2086: Double quote to prevent globbing and word splitting.

this is because the code passes in multiple files to process as an arg:
  gentvals "" errno ... "errno.h sys/errno.h" ...

then we use it like:
  files=$4
...
  for f in ${files}; do
...
  printf '#include <%s>\n' ${files}

unquoted, we get:
#include <errno.h>
#include <sys/errno.h>

quoted, we get:
#include <errno.h sys/errno.h>

our options are limited with POSIX shell:
* use arrays ... POSIX shell only has one builtin array: the args.
  so we'd rework the func API to pass in multiple files, and we'd
  operate on $@ by shifting it and iterating.
* change the shell runtime env by disabling path expansion.  that
  would mitigate the path expansion (which doesn't happen here as
  we know the inputs are all alphanumeric/periods), but still would
  have word splitting because we want that.

shell is just a bad programming language.  but i think the tree
specifically constrains itself to it for portability.  i don't know
what, if any, policies we have about using any other language.
-mike

^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH] sim: common: modernize gennltvals.sh
  2021-01-18 17:52       ` Mike Frysinger via Gdb-patches
@ 2021-01-18 18:08         ` Simon Marchi via Gdb-patches
  2021-01-18 21:15           ` Mike Frysinger via Gdb-patches
  0 siblings, 1 reply; 14+ messages in thread
From: Simon Marchi via Gdb-patches @ 2021-01-18 18:08 UTC (permalink / raw)
  To: gdb-patches



On 2021-01-18 12:52 p.m., Mike Frysinger wrote:
> On 18 Jan 2021 12:19, Simon Marchi via Gdb-patches wrote:
>> On 2021-01-18 12:13 p.m., Mike Frysinger wrote:
>>> i had run shellcheck and the only warnings (about unquoted expansion)
>>> i didn't think we worth fixing because of the limited scope of the
>>> script.  the variable in question isn't accepting user input, it's
>>> operating on fixed inputs, and if we restrict ourselves to POSIX
>>> shell (which i think we do), then our options are limited, and imo
>>> the alternatives make it harder to read/understand.
>>
>> Even considering this, I think it's worth just quoting the variables
>> and getting rid the warnings.  It's trivial, and it would make any
>> future (more important) warning more apparent.
> 
> to be clear, it isn't a style issue, it's a correctness issue.
> adding the quotes will break the script.
> 
> here's the warning:
>   printf '#include <%s>\n' ${files}
>                            ^------^ SC2086: Double quote to prevent globbing and word splitting.
> 
> this is because the code passes in multiple files to process as an arg:
>   gentvals "" errno ... "errno.h sys/errno.h" ...
> 
> then we use it like:
>   files=$4
> ...
>   for f in ${files}; do
> ...
>   printf '#include <%s>\n' ${files}
> 
> unquoted, we get:
> #include <errno.h>
> #include <sys/errno.h>
> 
> quoted, we get:
> #include <errno.h sys/errno.h>

Wait, what.  This printf call gives you multiple lines, and does not
tell you "you have too many arguments for the format string"?  This
is... surprising.

To produce that output, I would have expected a for loop:

for f in ${files}; do
  printf '#include <%s>\n' "$f"
done

> 
> our options are limited with POSIX shell:
> * use arrays ... POSIX shell only has one builtin array: the args.
>   so we'd rework the func API to pass in multiple files, and we'd
>   operate on $@ by shifting it and iterating.

Ok, I'm used to using bash arrays, I forgot they weren't standard.

> * change the shell runtime env by disabling path expansion.  that
>   would mitigate the path expansion (which doesn't happen here as
>   we know the inputs are all alphanumeric/periods), but still would
>   have word splitting because we want that.
> 
> shell is just a bad programming language.  but i think the tree
> specifically constrains itself to it for portability.  i don't know
> what, if any, policies we have about using any other language.
> -mike

I think it would be perfectly fine to require bash or python.

Simon


^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH] sim: common: modernize gennltvals.sh
  2021-01-18 18:08         ` Simon Marchi via Gdb-patches
@ 2021-01-18 21:15           ` Mike Frysinger via Gdb-patches
  2021-01-18 21:27             ` Simon Marchi via Gdb-patches
  2021-01-20 19:51             ` Tom Tromey
  0 siblings, 2 replies; 14+ messages in thread
From: Mike Frysinger via Gdb-patches @ 2021-01-18 21:15 UTC (permalink / raw)
  To: Simon Marchi; +Cc: gdb-patches

On 18 Jan 2021 13:08, Simon Marchi via Gdb-patches wrote:
> On 2021-01-18 12:52 p.m., Mike Frysinger wrote:
> > On 18 Jan 2021 12:19, Simon Marchi via Gdb-patches wrote:
> >> On 2021-01-18 12:13 p.m., Mike Frysinger wrote:
> >>> i had run shellcheck and the only warnings (about unquoted expansion)
> >>> i didn't think we worth fixing because of the limited scope of the
> >>> script.  the variable in question isn't accepting user input, it's
> >>> operating on fixed inputs, and if we restrict ourselves to POSIX
> >>> shell (which i think we do), then our options are limited, and imo
> >>> the alternatives make it harder to read/understand.
> >>
> >> Even considering this, I think it's worth just quoting the variables
> >> and getting rid the warnings.  It's trivial, and it would make any
> >> future (more important) warning more apparent.
> > 
> > to be clear, it isn't a style issue, it's a correctness issue.
> > adding the quotes will break the script.
> > 
> > here's the warning:
> >   printf '#include <%s>\n' ${files}
> >                            ^------^ SC2086: Double quote to prevent globbing and word splitting.
> > 
> > this is because the code passes in multiple files to process as an arg:
> >   gentvals "" errno ... "errno.h sys/errno.h" ...
> > 
> > then we use it like:
> >   files=$4
> > ...
> >   for f in ${files}; do
> > ...
> >   printf '#include <%s>\n' ${files}
> > 
> > unquoted, we get:
> > #include <errno.h>
> > #include <sys/errno.h>
> > 
> > quoted, we get:
> > #include <errno.h sys/errno.h>
> 
> Wait, what.  This printf call gives you multiple lines, and does not
> tell you "you have too many arguments for the format string"?  This
> is... surprising.

i guess it's just familiarity with it because it's what i expected :).
it makes the printf program pretty useful for formatting a bunch of args
like we have here.

> To produce that output, I would have expected a for loop:
> 
> for f in ${files}; do
>   printf '#include <%s>\n' "$f"
> done

that would work, but a single printf call is equiv & simpler :).

> > our options are limited with POSIX shell:
> > * use arrays ... POSIX shell only has one builtin array: the args.
> >   so we'd rework the func API to pass in multiple files, and we'd
> >   operate on $@ by shifting it and iterating.
> 
> Ok, I'm used to using bash arrays, I forgot they weren't standard.

hopefully one day someone will push the POSIX committe to extend the
shell language to include arrays.  until then, our primitives are ...
primitive.

> > * change the shell runtime env by disabling path expansion.  that
> >   would mitigate the path expansion (which doesn't happen here as
> >   we know the inputs are all alphanumeric/periods), but still would
> >   have word splitting because we want that.
> > 
> > shell is just a bad programming language.  but i think the tree
> > specifically constrains itself to it for portability.  i don't know
> > what, if any, policies we have about using any other language.
> 
> I think it would be perfectly fine to require bash or python.

in what context ?  i assume it's off-limits for people downloading a
release and building e.g. gdb or gas.  but is it acceptable for devs
doing dev work (which is what this thing is) ?
-mike

^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH] sim: common: modernize gennltvals.sh
  2021-01-18 21:15           ` Mike Frysinger via Gdb-patches
@ 2021-01-18 21:27             ` Simon Marchi via Gdb-patches
  2021-01-20 19:51             ` Tom Tromey
  1 sibling, 0 replies; 14+ messages in thread
From: Simon Marchi via Gdb-patches @ 2021-01-18 21:27 UTC (permalink / raw)
  To: gdb-patches

On 2021-01-18 4:15 p.m., Mike Frysinger wrote:
> in what context ?  i assume it's off-limits for people downloading a
> release and building e.g. gdb or gas.  but is it acceptable for devs
> doing dev work (which is what this thing is) ?

For development, I would be very comfortable requiring bash or python3,
there's a limit to how much we have to live in the past.  bash and
python3 are ubiquitous enough.

For building releases, I would personally be fine with it, but I
expect others to disagree.

Simon

^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH] sim: common: modernize gennltvals.sh
  2021-01-18 21:15           ` Mike Frysinger via Gdb-patches
  2021-01-18 21:27             ` Simon Marchi via Gdb-patches
@ 2021-01-20 19:51             ` Tom Tromey
  1 sibling, 0 replies; 14+ messages in thread
From: Tom Tromey @ 2021-01-20 19:51 UTC (permalink / raw)
  To: Simon Marchi; +Cc: gdb-patches

>> I think it would be perfectly fine to require bash or python.

Mike> in what context ?  i assume it's off-limits for people downloading a
Mike> release and building e.g. gdb or gas.  but is it acceptable for devs
Mike> doing dev work (which is what this thing is) ?

For the ordinary build, the normal rule is pretty restrictive.  We can
rely on sh (the exact version isn't specified, but I suppose it is just
"whatever works on the subset of build machines we want to work"), and a
handful of standard Unix tools that are listed in the GNU Coding
Standards.

For maintainer stuff, I think anything goes.  We already rely on Perl
(see make-target-delegates) and Tcl (via dejagnu) and Python
(contrib/dg-extract-results.py).

Probably we should not include things using obscure languages.  Even for
the Perl script there was a complaint.

Tom

^ permalink raw reply	[flat|nested] 14+ messages in thread

end of thread, other threads:[~2021-01-20 19:51 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-01-17 10:10 [PATCH] sim: common: modernize gennltvals.sh Mike Frysinger via Gdb-patches
2021-01-17 10:36 ` [PATCH] sim: common: delete configure & Makefile Mike Frysinger via Gdb-patches
2021-01-18 10:01   ` Andrew Burgess
2021-01-18 10:00 ` [PATCH] sim: common: modernize gennltvals.sh Andrew Burgess
2021-01-18 17:09   ` Mike Frysinger via Gdb-patches
2021-01-18 14:04 ` Simon Marchi via Gdb-patches
2021-01-18 17:13   ` Mike Frysinger via Gdb-patches
2021-01-18 17:19     ` Simon Marchi via Gdb-patches
2021-01-18 17:52       ` Mike Frysinger via Gdb-patches
2021-01-18 18:08         ` Simon Marchi via Gdb-patches
2021-01-18 21:15           ` Mike Frysinger via Gdb-patches
2021-01-18 21:27             ` Simon Marchi via Gdb-patches
2021-01-20 19:51             ` Tom Tromey
2021-01-18 17:20 ` [PATCH v2] " Mike Frysinger via Gdb-patches

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