[PATCH 14/13] Move errno.h to common-defs.h

[Gary Benson <gbenson@redhat.com>]

Hi all,

An addendum to my previous series...

This commit moves the inclusion of errno.h to common-defs.h and
removes all other inclusions.  Note that prior to this commit errno.h
was included unconditionally in defs.h, whereas in common-defs.h it is
protected by "#ifdef HAVE_ERRNO_H".  This does not change the status
quo, since presumably every platform on which GDB builds has errno.h.

Is this ok to commit?

Thanks,
Gary

--
gdb/
2014-07-30  Gary Benson  <gbenson@redhat.com>

	* configure.ac (AC_CHECK_HEADERS): Add errno.h.
	* configure: Regenerate.
	* config.in: Likewise.
	* common/common-defs.h: Include errno.h.
	* defs.h: Do not include errno.h.
	* ada-typeprint.c: Likewise.
	* c-typeprint.c: Likewise.
	* core-regset.c: Likewise.
	* corefile.c: Likewise.
	* corelow.c: Likewise.
	* event-loop.c: Likewise.
	* f-typeprint.c: Likewise.
	* gnu-nat.c: Likewise.
	* go32-nat.c: Likewise.
	* i386gnu-nat.c: Likewise.
	* m2-typeprint.c: Likewise.
	* nat/linux-btrace.c: Likewise.
	* p-typeprint.c: Likewise.
	* procfs.c: Likewise.
	* remote-sim.c: Likewise.
	* rs6000-nat.c: Likewise.
	* target.c: Likewise.
	* typeprint.c: Likewise.
	* ui-file.c: Likewise.
	* valops.c: Likewise.
	* valprint.c: Likewise.

gdb/gdbserver/
2014-07-30  Gary Benson  <gbenson@redhat.com>

	* server.h: Do not include errno.h.
	* event-loop.c: Likewise.
	* hostio-errno.c: Likewise.
	* linux-low.c: Likewise.
	* remote-utils.c: Likewise.
	* spu-low.c: Likewise.
	* utils.c: Likewise.
---
 gdb/ChangeLog                |   29 +++++++++++++++++++++++++++++
 gdb/ada-typeprint.c          |    2 --
 gdb/c-typeprint.c            |    1 -
 gdb/common/common-defs.h     |    3 +++
 gdb/config.in                |    3 +++
 gdb/configure                |    2 +-
 gdb/configure.ac             |    2 +-
 gdb/core-regset.c            |    1 -
 gdb/corefile.c               |    1 -
 gdb/corelow.c                |    1 -
 gdb/defs.h                   |    1 -
 gdb/event-loop.c             |    1 -
 gdb/f-typeprint.c            |    1 -
 gdb/gdbserver/ChangeLog      |   10 ++++++++++
 gdb/gdbserver/event-loop.c   |    4 ----
 gdb/gdbserver/hostio-errno.c |    1 -
 gdb/gdbserver/linux-low.c    |    1 -
 gdb/gdbserver/remote-utils.c |    3 ---
 gdb/gdbserver/server.h       |    3 ---
 gdb/gdbserver/spu-low.c      |    1 -
 gdb/gdbserver/utils.c        |    3 ---
 gdb/gnu-nat.c                |    1 -
 gdb/go32-nat.c               |    1 -
 gdb/i386gnu-nat.c            |    1 -
 gdb/m2-typeprint.c           |    1 -
 gdb/nat/linux-btrace.c       |    1 -
 gdb/p-typeprint.c            |    1 -
 gdb/procfs.c                 |    1 -
 gdb/remote-sim.c             |    1 -
 gdb/rs6000-nat.c             |    1 -
 gdb/target.c                 |    1 -
 gdb/typeprint.c              |    1 -
 gdb/ui-file.c                |    2 --
 gdb/valops.c                 |    1 -
 gdb/valprint.c               |    2 --
 35 files changed, 47 insertions(+), 43 deletions(-)

diff --git a/gdb/ada-typeprint.c b/gdb/ada-typeprint.c
index a43ced7..305e39c 100644
--- a/gdb/ada-typeprint.c
+++ b/gdb/ada-typeprint.c
@@ -32,9 +32,7 @@
 #include "c-lang.h"
 #include "typeprint.h"
 #include "ada-lang.h"
-
 #include <ctype.h>
-#include <errno.h>
 
 static int print_selected_record_field_types (struct type *, struct type *,
 					      int, int,
diff --git a/gdb/c-typeprint.c b/gdb/c-typeprint.c
index 5239505..374c90e 100644
--- a/gdb/c-typeprint.c
+++ b/gdb/c-typeprint.c
@@ -31,7 +31,6 @@
 #include "typeprint.h"
 #include "cp-abi.h"
 #include "jv-lang.h"
-#include <errno.h>
 #include "cp-support.h"
 
 static void c_type_print_varspec_prefix (struct type *,
diff --git a/gdb/common/common-defs.h b/gdb/common/common-defs.h
index 7c67846..964b006 100644
--- a/gdb/common/common-defs.h
+++ b/gdb/common/common-defs.h
@@ -32,6 +32,9 @@
 #include <stdarg.h>
 #include <stddef.h>
 #include <string.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
 #include "ansidecl.h"
 #include "libiberty.h"
 #include "pathmax.h"
diff --git a/gdb/config.in b/gdb/config.in
index fb9b0cd..e592050 100644
--- a/gdb/config.in
+++ b/gdb/config.in
@@ -129,6 +129,9 @@
 /* Define to 1 if you have the <elf_hp.h> header file. */
 #undef HAVE_ELF_HP_H
 
+/* Define to 1 if you have the <errno.h> header file. */
+#undef HAVE_ERRNO_H
+
 /* Define to 1 if your system has the etext variable. */
 #undef HAVE_ETEXT
 
diff --git a/gdb/configure b/gdb/configure
index 809326a..11ff864 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -9417,7 +9417,7 @@ for ac_header in nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
 		  sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
 		  termios.h termio.h \
 		  sgtty.h elf_hp.h \
-		  dlfcn.h
+		  dlfcn.h errno.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
diff --git a/gdb/configure.ac b/gdb/configure.ac
index 70d0964..d0916c3 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -1274,7 +1274,7 @@ AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
 		  sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
 		  termios.h termio.h \
 		  sgtty.h elf_hp.h \
-		  dlfcn.h])
+		  dlfcn.h errno.h])
 AC_CHECK_HEADERS(sys/proc.h, [], [],
 [#if HAVE_SYS_PARAM_H
 # include <sys/param.h>
diff --git a/gdb/core-regset.c b/gdb/core-regset.c
index 6edc8c5..bdcb72a 100644
--- a/gdb/core-regset.c
+++ b/gdb/core-regset.c
@@ -34,7 +34,6 @@
 #include "regcache.h"
 
 #include <fcntl.h>
-#include <errno.h>
 #include <time.h>
 #ifdef HAVE_SYS_PROCFS_H
 #include <sys/procfs.h>
diff --git a/gdb/corefile.c b/gdb/corefile.c
index 1eaecb5..2b5ed13 100644
--- a/gdb/corefile.c
+++ b/gdb/corefile.c
@@ -18,7 +18,6 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
-#include <errno.h>
 #include <signal.h>
 #include <fcntl.h>
 #include "inferior.h"
diff --git a/gdb/corelow.c b/gdb/corelow.c
index 1c9a93d..b5958d6 100644
--- a/gdb/corelow.c
+++ b/gdb/corelow.c
@@ -19,7 +19,6 @@
 
 #include "defs.h"
 #include "arch-utils.h"
-#include <errno.h>
 #include <signal.h>
 #include <fcntl.h>
 #ifdef HAVE_SYS_FILE_H
diff --git a/gdb/defs.h b/gdb/defs.h
index 710298c..b7271a7 100644
--- a/gdb/defs.h
+++ b/gdb/defs.h
@@ -28,7 +28,6 @@
 #include "common-defs.h"
 
 #include <sys/types.h>
-#include <errno.h>		/* System call error return status.  */
 #include <limits.h>
 #include <stdint.h>
 
diff --git a/gdb/event-loop.c b/gdb/event-loop.c
index cc2f837..e40187e 100644
--- a/gdb/event-loop.c
+++ b/gdb/event-loop.c
@@ -31,7 +31,6 @@
 #endif
 
 #include <sys/types.h>
-#include <errno.h>
 #include <sys/time.h>
 #include "exceptions.h"
 #include "gdb_select.h"
diff --git a/gdb/f-typeprint.c b/gdb/f-typeprint.c
index 534019a..7474051 100644
--- a/gdb/f-typeprint.c
+++ b/gdb/f-typeprint.c
@@ -30,7 +30,6 @@
 #include "gdbcore.h"
 #include "target.h"
 #include "f-lang.h"
-#include <errno.h>
 
 #if 0				/* Currently unused.  */
 static void f_type_print_args (struct type *, struct ui_file *);
diff --git a/gdb/gdbserver/event-loop.c b/gdb/gdbserver/event-loop.c
index 1513b59..92c8db0 100644
--- a/gdb/gdbserver/event-loop.c
+++ b/gdb/gdbserver/event-loop.c
@@ -29,10 +29,6 @@
 #include <io.h>
 #endif
 
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
-#endif
-
 #include <unistd.h>
 
 typedef struct gdb_event gdb_event;
diff --git a/gdb/gdbserver/hostio-errno.c b/gdb/gdbserver/hostio-errno.c
index 8817096..f24b51f 100644
--- a/gdb/gdbserver/hostio-errno.c
+++ b/gdb/gdbserver/hostio-errno.c
@@ -22,7 +22,6 @@
    on top of errno.  */
 
 #include "server.h"
-#include <errno.h>
 #include "gdb/fileio.h"
 
 static int
diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c
index 74289c0..f71a4de 100644
--- a/gdb/gdbserver/linux-low.c
+++ b/gdb/gdbserver/linux-low.c
@@ -31,7 +31,6 @@
 #include <sys/ioctl.h>
 #include <fcntl.h>
 #include <unistd.h>
-#include <errno.h>
 #include <sys/syscall.h>
 #include <sched.h>
 #include <ctype.h>
diff --git a/gdb/gdbserver/remote-utils.c b/gdb/gdbserver/remote-utils.c
index f3ae393..327677a 100644
--- a/gdb/gdbserver/remote-utils.c
+++ b/gdb/gdbserver/remote-utils.c
@@ -56,9 +56,6 @@
 #include <arpa/inet.h>
 #endif
 #include <sys/stat.h>
-#if HAVE_ERRNO_H
-#include <errno.h>
-#endif
 
 #if USE_WIN32API
 #include <winsock2.h>
diff --git a/gdb/gdbserver/server.h b/gdb/gdbserver/server.h
index 1e2c3a1..db6ddde 100644
--- a/gdb/gdbserver/server.h
+++ b/gdb/gdbserver/server.h
@@ -27,9 +27,6 @@
 
 #include "version.h"
 
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
-#endif
 #include <setjmp.h>
 
 #ifdef HAVE_ALLOCA_H
diff --git a/gdb/gdbserver/spu-low.c b/gdb/gdbserver/spu-low.c
index cb1ac0d..867f97b 100644
--- a/gdb/gdbserver/spu-low.c
+++ b/gdb/gdbserver/spu-low.c
@@ -24,7 +24,6 @@
 #include <sys/ptrace.h>
 #include <fcntl.h>
 #include <unistd.h>
-#include <errno.h>
 #include <sys/syscall.h>
 #include "filestuff.h"
 #include "hostio.h"
diff --git a/gdb/gdbserver/utils.c b/gdb/gdbserver/utils.c
index ec37a9b..b011637 100644
--- a/gdb/gdbserver/utils.c
+++ b/gdb/gdbserver/utils.c
@@ -17,9 +17,6 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "server.h"
-#if HAVE_ERRNO_H
-#include <errno.h>
-#endif
 
 #ifdef IN_PROCESS_AGENT
 #  define PREFIX "ipa: "
diff --git a/gdb/gnu-nat.c b/gdb/gnu-nat.c
index d6658c7..c8164d6 100644
--- a/gdb/gnu-nat.c
+++ b/gdb/gnu-nat.c
@@ -23,7 +23,6 @@
 #include "defs.h"
 
 #include <ctype.h>
-#include <errno.h>
 #include <limits.h>
 #include <setjmp.h>
 #include <signal.h>
diff --git a/gdb/go32-nat.c b/gdb/go32-nat.c
index 75596a2..727f810 100644
--- a/gdb/go32-nat.c
+++ b/gdb/go32-nat.c
@@ -105,7 +105,6 @@
 #include "inf-child.h"
 
 #include <ctype.h>
-#include <errno.h>
 #include <unistd.h>
 #include <sys/utsname.h>
 #include <io.h>
diff --git a/gdb/i386gnu-nat.c b/gdb/i386gnu-nat.c
index 94d2a0a..8fad871 100644
--- a/gdb/i386gnu-nat.c
+++ b/gdb/i386gnu-nat.c
@@ -22,7 +22,6 @@
 #include "floatformat.h"
 #include "regcache.h"
 
-#include <errno.h>
 #include <mach.h>
 #include <mach_error.h>
 #include <mach/message.h>
diff --git a/gdb/m2-typeprint.c b/gdb/m2-typeprint.c
index 45bc093..72c107b 100644
--- a/gdb/m2-typeprint.c
+++ b/gdb/m2-typeprint.c
@@ -31,7 +31,6 @@
 #include "c-lang.h"
 #include "typeprint.h"
 #include "cp-abi.h"
-#include <errno.h>
 
 static void m2_print_bounds (struct type *type,
 			     struct ui_file *stream, int show, int level,
diff --git a/gdb/nat/linux-btrace.c b/gdb/nat/linux-btrace.c
index 19e218e..f6fdbda 100644
--- a/gdb/nat/linux-btrace.c
+++ b/gdb/nat/linux-btrace.c
@@ -37,7 +37,6 @@
 
 #if HAVE_LINUX_PERF_EVENT_H && defined(SYS_perf_event_open)
 
-#include <errno.h>
 #include <stdint.h>
 #include <unistd.h>
 #include <sys/mman.h>
diff --git a/gdb/p-typeprint.c b/gdb/p-typeprint.c
index 6870cdf..b1e16f0 100644
--- a/gdb/p-typeprint.c
+++ b/gdb/p-typeprint.c
@@ -31,7 +31,6 @@
 #include "p-lang.h"
 #include "typeprint.h"
 #include "gdb-demangle.h"
-#include <errno.h>
 #include <ctype.h>
 
 static void pascal_type_print_varspec_suffix (struct type *, struct ui_file *,
diff --git a/gdb/procfs.c b/gdb/procfs.c
index d93843a..3465bc5 100644
--- a/gdb/procfs.c
+++ b/gdb/procfs.c
@@ -42,7 +42,6 @@
 #ifdef HAVE_SYS_SYSCALL_H
 #include <sys/syscall.h>
 #endif
-#include <sys/errno.h>
 #include "gdb_wait.h"
 #include <signal.h>
 #include <ctype.h>
diff --git a/gdb/remote-sim.c b/gdb/remote-sim.c
index e26a971..b8974e1 100644
--- a/gdb/remote-sim.c
+++ b/gdb/remote-sim.c
@@ -28,7 +28,6 @@
 #include <fcntl.h>
 #include <signal.h>
 #include <setjmp.h>
-#include <errno.h>
 #include "terminal.h"
 #include "target.h"
 #include "gdbcore.h"
diff --git a/gdb/rs6000-nat.c b/gdb/rs6000-nat.c
index 4ba955c..1b09680 100644
--- a/gdb/rs6000-nat.c
+++ b/gdb/rs6000-nat.c
@@ -46,7 +46,6 @@
 #include <signal.h>
 #include <sys/ioctl.h>
 #include <fcntl.h>
-#include <errno.h>
 
 #include <a.out.h>
 #include <sys/file.h>
diff --git a/gdb/target.c b/gdb/target.c
index ec1db3e..b784b05 100644
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -20,7 +20,6 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
-#include <errno.h>
 #include "target.h"
 #include "target-dcache.h"
 #include "gdbcmd.h"
diff --git a/gdb/typeprint.c b/gdb/typeprint.c
index e0b7c44..3d8620a 100644
--- a/gdb/typeprint.c
+++ b/gdb/typeprint.c
@@ -33,7 +33,6 @@
 #include "typeprint.h"
 #include "exceptions.h"
 #include "valprint.h"
-#include <errno.h>
 #include <ctype.h>
 #include "cli/cli-utils.h"
 #include "extension.h"
diff --git a/gdb/ui-file.c b/gdb/ui-file.c
index 767b55b..49607dc 100644
--- a/gdb/ui-file.c
+++ b/gdb/ui-file.c
@@ -25,8 +25,6 @@
 #include "gdb_select.h"
 #include "filestuff.h"
 
-#include <errno.h>
-
 static ui_file_isatty_ftype null_file_isatty;
 static ui_file_write_ftype null_file_write;
 static ui_file_write_ftype null_file_write_async_safe;
diff --git a/gdb/valops.c b/gdb/valops.c
index 5ef763d..d9ce2f2 100644
--- a/gdb/valops.c
+++ b/gdb/valops.c
@@ -36,7 +36,6 @@
 #include "cp-support.h"
 #include "dfp.h"
 #include "tracepoint.h"
-#include <errno.h>
 #include "observer.h"
 #include "objfiles.h"
 #include "exceptions.h"
diff --git a/gdb/valprint.c b/gdb/valprint.c
index 0ded6b7..d3ab267 100644
--- a/gdb/valprint.c
+++ b/gdb/valprint.c
@@ -37,8 +37,6 @@
 #include "charset.h"
 #include <ctype.h>
 
-#include <errno.h>
-
 /* Maximum number of wchars returned from wchar_iterate.  */
 #define MAX_WCHARS 4
 
-- 
1.7.1