[3/3] RFC: fix PR mi/8444

[3/3] RFC: fix PR mi/8444

[Tom Tromey]

This patch actually fixes the PR.

It at least needs a doc review.

I noticed several stop reasons which were not emitted.  This patch fixes
them all.  I documented all the new reasons.  Most of the patch is
changing various print_it methods to use uiout.  I made the various new
reasons also emit other fields that seemed appropriate.

I added a test case which covers the specific case in the PR (solib
events), but I didn't try to cover every case.

The test case uses "run" instead of "-exec-run" in order to also test
the previous patch.

Tom

2011-11-16  Tom Tromey  <tromey@redhat.com>

	PR mi/8444:
	* mi/mi-common.h (EXEC_ASYNC_SOLIB_EVENT, EXEC_ASYNC_FORK)
	(EXEC_ASYNC_VFORK, EXEC_ASYNC_SYSCALL_ENTRY)
	(EXEC_ASYNC_SYSCALL_RETURN, EXEC_ASYNC_EXEC): New constants.
	* mi/mi-common.c (async_reason_string_lookup): Add new reasons.
	* breakpoint.c (print_it_catch_fork, print_it_catch_vfork)
	(print_it_catch_syscall, print_it_catch_exec)
	(internal_bkpt_print_it): Use ui_out.  Emit stop reason.

2011-11-16  Tom Tromey  <tromey@redhat.com>

	* gdb.texinfo (GDB/MI Async Records): Document new *stopped
	reasons.

2011-11-16  Tom Tromey  <tromey@redhat.com>

	* lib/mi-support.exp (mi_run_cmd_full): Rename from mi_run_cmd.
	Add "use_mi_command" argument.
	(mi_run_cmd, mi_run_with_cli): New procs.
	* gdb.mi/solib-lib.c: New file.
	* gdb.mi/solib-main.c: New file.
	* gdb.mi/mi-solib.exp: New file.

From f9ccf49896650cd458c4e6e2561d2e9cc48c788d Mon Sep 17 00:00:00 2001
From: Tom Tromey <tromey@redhat.com>
Date: Wed, 16 Nov 2011 08:31:11 -0700
Subject: [PATCH 3/3] fix PR 8444

---
 gdb/ChangeLog                     |   11 +++++
 gdb/breakpoint.c                  |   90 +++++++++++++++++++++++++++++-------
 gdb/doc/ChangeLog                 |    5 ++
 gdb/doc/gdb.texinfo               |   19 ++++++++
 gdb/mi/mi-common.c                |    6 +++
 gdb/mi/mi-common.h                |    6 +++
 gdb/testsuite/ChangeLog           |    9 ++++
 gdb/testsuite/gdb.mi/mi-solib.exp |   55 ++++++++++++++++++++++
 gdb/testsuite/gdb.mi/solib-lib.c  |   20 ++++++++
 gdb/testsuite/gdb.mi/solib-main.c |   24 ++++++++++
 gdb/testsuite/lib/mi-support.exp  |   26 +++++++++--
 11 files changed, 248 insertions(+), 23 deletions(-)
 create mode 100644 gdb/testsuite/gdb.mi/mi-solib.exp
 create mode 100644 gdb/testsuite/gdb.mi/solib-lib.c
 create mode 100644 gdb/testsuite/gdb.mi/solib-main.c

diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c
index 8f09296..3eed4b2 100644
--- a/gdb/breakpoint.c
+++ b/gdb/breakpoint.c
@@ -6176,12 +6176,25 @@ breakpoint_hit_catch_fork (const struct bp_location *bl,
 static enum print_stop_action
 print_it_catch_fork (bpstat bs)
 {
+  struct ui_out *uiout = current_uiout;
   struct breakpoint *b = bs->breakpoint_at;
   struct fork_catchpoint *c = (struct fork_catchpoint *) bs->breakpoint_at;
 
   annotate_catchpoint (b->number);
-  printf_filtered (_("\nCatchpoint %d (forked process %d), "),
-		   b->number, ptid_get_pid (c->forked_inferior_pid));
+  if (b->disposition == disp_del)
+    ui_out_text (uiout, "\nTemporary catchpoint ");
+  else
+    ui_out_text (uiout, "\nCatchpoint ");
+  if (ui_out_is_mi_like_p (uiout))
+    {
+      ui_out_field_string (uiout, "reason",
+			   async_reason_lookup (EXEC_ASYNC_FORK));
+      ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
+    }
+  ui_out_field_int (uiout, "bkptno", b->number);
+  ui_out_text (uiout, " (forked process ");
+  ui_out_field_int (uiout, "newpid", ptid_get_pid (c->forked_inferior_pid));
+  ui_out_text (uiout, "), ");
   return PRINT_SRC_AND_LOC;
 }
 
@@ -6272,12 +6285,25 @@ breakpoint_hit_catch_vfork (const struct bp_location *bl,
 static enum print_stop_action
 print_it_catch_vfork (bpstat bs)
 {
+  struct ui_out *uiout = current_uiout;
   struct breakpoint *b = bs->breakpoint_at;
   struct fork_catchpoint *c = (struct fork_catchpoint *) b;
 
   annotate_catchpoint (b->number);
-  printf_filtered (_("\nCatchpoint %d (vforked process %d), "),
-		   b->number, ptid_get_pid (c->forked_inferior_pid));
+  if (b->disposition == disp_del)
+    ui_out_text (uiout, "\nTemporary catchpoint ");
+  else
+    ui_out_text (uiout, "\nCatchpoint ");
+  if (ui_out_is_mi_like_p (uiout))
+    {
+      ui_out_field_string (uiout, "reason",
+			   async_reason_lookup (EXEC_ASYNC_VFORK));
+      ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
+    }
+  ui_out_field_int (uiout, "bkptno", b->number);
+  ui_out_text (uiout, " (vforked process ");
+  ui_out_field_int (uiout, "newpid", ptid_get_pid (c->forked_inferior_pid));
+  ui_out_text (uiout, "), ");
   return PRINT_SRC_AND_LOC;
 }
 
@@ -6486,6 +6512,7 @@ breakpoint_hit_catch_syscall (const struct bp_location *bl,
 static enum print_stop_action
 print_it_catch_syscall (bpstat bs)
 {
+  struct ui_out *uiout = current_uiout;
   struct breakpoint *b = bs->breakpoint_at;
   /* These are needed because we want to know in which state a
      syscall is.  It can be in the TARGET_WAITKIND_SYSCALL_ENTRY
@@ -6494,7 +6521,6 @@ print_it_catch_syscall (bpstat bs)
   ptid_t ptid;
   struct target_waitstatus last;
   struct syscall s;
-  struct cleanup *old_chain;
   char *syscall_id;
 
   get_last_target_status (&ptid, &last);
@@ -6503,21 +6529,31 @@ print_it_catch_syscall (bpstat bs)
 
   annotate_catchpoint (b->number);
 
-  if (s.name == NULL)
-    syscall_id = xstrprintf ("%d", last.value.syscall_number);
+  if (b->disposition == disp_del)
+    ui_out_text (uiout, "\nTemporary catchpoint ");
   else
-    syscall_id = xstrprintf ("'%s'", s.name);
-
-  old_chain = make_cleanup (xfree, syscall_id);
+    ui_out_text (uiout, "\nCatchpoint ");
+  if (ui_out_is_mi_like_p (uiout))
+    {
+      ui_out_field_string (uiout, "reason",
+			   async_reason_lookup (last.kind == TARGET_WAITKIND_SYSCALL_ENTRY
+						? EXEC_ASYNC_SYSCALL_ENTRY
+						: EXEC_ASYNC_SYSCALL_RETURN));
+      ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
+    }
+  ui_out_field_int (uiout, "bkptno", b->number);
 
   if (last.kind == TARGET_WAITKIND_SYSCALL_ENTRY)
-    printf_filtered (_("\nCatchpoint %d (call to syscall %s), "),
-                     b->number, syscall_id);
-  else if (last.kind == TARGET_WAITKIND_SYSCALL_RETURN)
-    printf_filtered (_("\nCatchpoint %d (returned from syscall %s), "),
-                     b->number, syscall_id);
+    ui_out_text (uiout, " (call to syscall ");
+  else
+    ui_out_text (uiout, " (returned from syscall ");
 
-  do_cleanups (old_chain);
+  if (s.name == NULL || ui_out_is_mi_like_p (uiout))
+    ui_out_field_int (uiout, "syscall-number", last.value.syscall_number);
+  if (s.name != NULL)
+    ui_out_field_string (uiout, "syscall-name", s.name);
+
+  ui_out_text (uiout, "), ");
 
   return PRINT_SRC_AND_LOC;
 }
@@ -6760,12 +6796,26 @@ breakpoint_hit_catch_exec (const struct bp_location *bl,
 static enum print_stop_action
 print_it_catch_exec (bpstat bs)
 {
+  struct ui_out *uiout = current_uiout;
   struct breakpoint *b = bs->breakpoint_at;
   struct exec_catchpoint *c = (struct exec_catchpoint *) b;
 
   annotate_catchpoint (b->number);
-  printf_filtered (_("\nCatchpoint %d (exec'd %s), "), b->number,
-		   c->exec_pathname);
+  if (b->disposition == disp_del)
+    ui_out_text (uiout, "\nTemporary catchpoint ");
+  else
+    ui_out_text (uiout, "\nCatchpoint ");
+  if (ui_out_is_mi_like_p (uiout))
+    {
+      ui_out_field_string (uiout, "reason",
+			   async_reason_lookup (EXEC_ASYNC_EXEC));
+      ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
+    }
+  ui_out_field_int (uiout, "bkptno", b->number);
+  ui_out_text (uiout, " (exec'd ");
+  ui_out_field_string (uiout, "new-exec", c->exec_pathname);
+  ui_out_text (uiout, "), ");
+
   return PRINT_SRC_AND_LOC;
 }
 
@@ -11133,6 +11183,7 @@ internal_bkpt_check_status (bpstat bs)
 static enum print_stop_action
 internal_bkpt_print_it (bpstat bs)
 {
+  struct ui_out *uiout = current_uiout;
   struct breakpoint *b;
 
   b = bs->breakpoint_at;
@@ -11144,6 +11195,9 @@ internal_bkpt_print_it (bpstat bs)
 	 variable?  (If so, we report this as a generic, "Stopped due
 	 to shlib event" message.) */
       printf_filtered (_("Stopped due to shared library event\n"));
+      if (ui_out_is_mi_like_p (uiout))
+	ui_out_field_string (uiout, "reason",
+			     async_reason_lookup (EXEC_ASYNC_SOLIB_EVENT));
       break;
 
     case bp_thread_event:
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index f4f7f1e..c13cd62 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -26130,6 +26130,25 @@ The inferior exited.
 The inferior exited normally.
 @item signal-received 
 A signal was received by the inferior.
+@item solib-event
+The inferior has stopped due to a library being loaded or unloaded.
+This can only happen when @code{stop-on-solib-events} (@pxref{Files})
+is set.
+@item fork
+The inferior has forked.  This is reported when @code{catch fork}
+(@pxref{Set Catchpoints}) has been used.
+@item vfork
+The inferior has vforked.  This is reported in when @code{catch vfork}
+(@pxref{Set Catchpoints}) has been used.
+@item syscall-entry
+The inferior entered a system call.  This is reported when @code{catch
+syscall} (@pxref{Set Catchpoints}) has been used.
+@item syscall-entry
+The inferior returned from a system call.  This is reported when
+@code{catch syscall} (@pxref{Set Catchpoints}) has been used.
+@item exec
+The inferior called @code{exec}.  This is reported when @code{catch exec}
+(@pxref{Set Catchpoints}) has been used.
 @end table
 
 The @var{id} field identifies the thread that directly caused the stop
diff --git a/gdb/mi/mi-common.c b/gdb/mi/mi-common.c
index e7dd3c4..8fb9799 100644
--- a/gdb/mi/mi-common.c
+++ b/gdb/mi/mi-common.c
@@ -35,6 +35,12 @@ static const char * const async_reason_string_lookup[] =
   "exited",
   "exited-normally",
   "signal-received",
+  "solib-event",
+  "fork",
+  "vfork",
+  "syscall-entry",
+  "syscall-return",
+  "exec",
   NULL
 };
 
diff --git a/gdb/mi/mi-common.h b/gdb/mi/mi-common.h
index dc5fc8e..9ecc5a1 100644
--- a/gdb/mi/mi-common.h
+++ b/gdb/mi/mi-common.h
@@ -37,6 +37,12 @@ enum async_reply_reason
   EXEC_ASYNC_EXITED,
   EXEC_ASYNC_EXITED_NORMALLY,
   EXEC_ASYNC_SIGNAL_RECEIVED,
+  EXEC_ASYNC_SOLIB_EVENT,
+  EXEC_ASYNC_FORK,
+  EXEC_ASYNC_VFORK,
+  EXEC_ASYNC_SYSCALL_ENTRY,
+  EXEC_ASYNC_SYSCALL_RETURN,
+  EXEC_ASYNC_EXEC,
   /* This is here only to represent the number of enums.  */
   EXEC_ASYNC_LAST
 };
diff --git a/gdb/testsuite/gdb.mi/mi-solib.exp b/gdb/testsuite/gdb.mi/mi-solib.exp
new file mode 100644
index 0000000..a8ef84c
--- /dev/null
+++ b/gdb/testsuite/gdb.mi/mi-solib.exp
@@ -0,0 +1,55 @@
+# Copyright 2011 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/>.
+
+load_lib mi-support.exp
+set MIFLAGS "-i=mi2"
+
+gdb_exit
+if [mi_gdb_start] {
+    continue
+}
+
+set libname "solib-lib"
+set srcfile_lib ${srcdir}/${subdir}/${libname}.c
+set binfile_lib ${objdir}/${subdir}/${libname}.so
+set lib_flags [list debug ldflags=-Wl,-Bsymbolic]
+
+set testfile "solib-main"
+set srcfile ${srcdir}/${subdir}/${testfile}.c
+set binfile ${objdir}/${subdir}/${testfile}
+set bin_flags [list debug shlib=${binfile_lib}]
+
+if [get_compiler_info ${binfile}] {
+    return -1
+}
+
+if { [gdb_compile_shlib ${srcfile_lib} ${binfile_lib} $lib_flags] != ""
+     || [gdb_compile ${srcfile} ${binfile} executable $bin_flags] != "" } {
+  untested "Could not compile $binfile_lib or $binfile."
+  return -1
+}
+
+mi_delete_breakpoints
+mi_gdb_reinitialize_dir $srcdir/$subdir
+mi_gdb_reinitialize_dir $srcdir/$subdir
+mi_gdb_load ${binfile}
+
+mi_gdb_test "777-gdb-set stop-on-solib-events 1" "777\\^done" \
+    "set stop-on-solib-events"
+
+# We use "run" rather than "-exec-run" here in order to test that CLI
+# commands still cause the correct MI output to be generated.
+mi_run_with_cli
+mi_expect_stop solib-event .* .* .* .* .* "check for solib event"
diff --git a/gdb/testsuite/gdb.mi/solib-lib.c b/gdb/testsuite/gdb.mi/solib-lib.c
new file mode 100644
index 0000000..00a1595
--- /dev/null
+++ b/gdb/testsuite/gdb.mi/solib-lib.c
@@ -0,0 +1,20 @@
+/* Copyright 2011 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/>.
+*/
+#include <stdio.h>
+
+void solibfunction(void)
+{
+}
diff --git a/gdb/testsuite/gdb.mi/solib-main.c b/gdb/testsuite/gdb.mi/solib-main.c
new file mode 100644
index 0000000..df58efc
--- /dev/null
+++ b/gdb/testsuite/gdb.mi/solib-main.c
@@ -0,0 +1,24 @@
+/* Copyright 2011 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/>.
+*/
+#include <stdio.h>
+
+extern void solibfunction(void);
+
+int main ()
+{
+  solibfunction ();
+  return 0;
+}
diff --git a/gdb/testsuite/lib/mi-support.exp b/gdb/testsuite/lib/mi-support.exp
index 63097cb..e07562d 100644
--- a/gdb/testsuite/lib/mi-support.exp
+++ b/gdb/testsuite/lib/mi-support.exp
@@ -788,7 +788,7 @@ proc mi_gdb_test { args } {
 # In patterns, the newline sequence ``\r\n'' is matched explicitly as
 # ``.*$'' could swallow up output that we attempt to match elsewhere.
 
-proc mi_run_cmd {args} {
+proc mi_run_cmd_full {use_mi_command args} {
     global suppress_flag
     if { $suppress_flag } {
 	return -1
@@ -797,6 +797,14 @@ proc mi_run_cmd {args} {
     global thread_selected_re
     global library_loaded_re
 
+    if {$use_mi_command} {
+	set run_prefix "220-exec-"
+	set run_match "220"
+    } else {
+	set run_prefix ""
+	set run_match ""
+    }
+
     if [target_info exists gdb_init_command] {
 	send_gdb "[target_info gdb_init_command]\n";
 	gdb_expect 30 {
@@ -814,9 +822,9 @@ proc mi_run_cmd {args} {
 
     if [target_info exists use_gdb_stub] {
 	if [target_info exists gdb,do_reload_on_run] {
-	    send_gdb "220-exec-continue\n";
+	    send_gdb "${run_prefix}continue\n";
 	    gdb_expect 60 {
-		-re "220\\^running\[\r\n\]+\\*running,thread-id=\"\[^\"\]+\"\r\n$mi_gdb_prompt" {}
+		-re "${run_match}\\^running\[\r\n\]+\\*running,thread-id=\"\[^\"\]+\"\r\n$mi_gdb_prompt" {}
 		default {}
 	    }
 	    return 0;
@@ -835,9 +843,9 @@ proc mi_run_cmd {args} {
 	return 0
     }
 
-    send_gdb "220-exec-run $args\n"
+    send_gdb "${run_prefix}run $args\n"
     gdb_expect {
-	-re "220\\^running\r\n(\\*running,thread-id=\"\[^\"\]+\"\r\n|=thread-created,id=\"1\",group-id=\"\[0-9\]+\"\r\n)*(${library_loaded_re})*(${thread_selected_re})?${mi_gdb_prompt}" {
+	-re "${run_match}\\^running\r\n(\\*running,thread-id=\"\[^\"\]+\"\r\n|=thread-created,id=\"1\",group-id=\"\[0-9\]+\"\r\n)*(${library_loaded_re})*(${thread_selected_re})?${mi_gdb_prompt}" {
 	}
 	-re "\\^error,msg=\"The target does not support running in non-stop mode.\"" {
 	    unsupported "Non-stop mode not supported"
@@ -853,6 +861,14 @@ proc mi_run_cmd {args} {
     return 0
 }
 
+proc mi_run_cmd {args} {
+    return [eval mi_run_cmd_full 1 $args]
+}
+
+proc mi_run_with_cli {args} {
+    return [eval mi_run_cmd_full 0 $args]
+}
+
 #
 # Just like run-to-main but works with the MI interface
 #
-- 
1.7.6.4

Re: [3/3] RFC: fix PR mi/8444

[Pedro Alves]

On Wednesday 16 November 2011 20:04:29, Tom Tromey wrote:

> @@ -11144,6 +11195,9 @@ internal_bkpt_print_it (bpstat bs)
>  	 variable?  (If so, we report this as a generic, "Stopped due
>  	 to shlib event" message.) */
>        printf_filtered (_("Stopped due to shared library event\n"));
> +      if (ui_out_is_mi_like_p (uiout))
> +	ui_out_field_string (uiout, "reason",
> +			     async_reason_lookup (EXEC_ASYNC_SOLIB_EVENT));

TARGET_WAITKIND_LOADED targets print this elsewhere, as
they don't use a shared library event breakpoint.  See
infrun.c:normal_stop.  Can you give that the same treatment?

-- 
Pedro Alves

Re: [3/3] RFC: fix PR mi/8444

[Tom Tromey]

>>>>> "Pedro" == Pedro Alves <pedro@codesourcery.com> writes:

Pedro> TARGET_WAITKIND_LOADED targets print this elsewhere, as
Pedro> they don't use a shared library event breakpoint.  See
Pedro> infrun.c:normal_stop.  Can you give that the same treatment?

What do you think of the appended?

I don't think I have access to a TARGET_WAITKIND_LOADED target, so I
can't test this.

I added a 'kind' argument to bpstat_print, to centralize the printing.
I wasn't sure if this is a good idea or not; I think the centralization
idea is fine, but I wasn't sure if this addition is violating some
abstraction boundary.

Tom

2011-11-17  Tom Tromey  <tromey@redhat.com>

	PR mi/8444:
	* mi/mi-common.h (EXEC_ASYNC_SOLIB_EVENT, EXEC_ASYNC_FORK)
	(EXEC_ASYNC_VFORK, EXEC_ASYNC_SYSCALL_ENTRY)
	(EXEC_ASYNC_SYSCALL_RETURN, EXEC_ASYNC_EXEC): New constants.
	* mi/mi-common.c (async_reason_string_lookup): Add new reasons.
	* breakpoint.c (print_it_catch_fork, print_it_catch_vfork)
	(print_it_catch_syscall, print_it_catch_exec)
	(internal_bkpt_print_it): Use ui_out.  Emit stop reason.
	(bpstat_print): Add 'kind' argument.  Handle
	TARGET_WAITKIND_LOADED.
	* infrun.c (normal_stop): Update for bpstat_print change.  Don't
	handle TARGET_WAITKIND_LOADED here.
	* breakpoint.h (bpstat_print): Update.

2011-11-16  Tom Tromey  <tromey@redhat.com>

	* gdb.texinfo (GDB/MI Async Records): Document new *stopped
	reasons.

2011-11-16  Tom Tromey  <tromey@redhat.com>

	* lib/mi-support.exp (mi_run_cmd_full): Rename from mi_run_cmd.
	Add "use_mi_command" argument.
	(mi_run_cmd, mi_run_with_cli): New procs.
	* gdb.mi/solib-lib.c: New file.
	* gdb.mi/solib-main.c: New file.
	* gdb.mi/mi-solib.exp: New file.

diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c
index 8f09296..588a58c 100644
--- a/gdb/breakpoint.c
+++ b/gdb/breakpoint.c
@@ -3446,7 +3446,8 @@ print_bp_stop_message (bpstat bs)
 
 /* Print a message indicating what happened.  This is called from
    normal_stop().  The input to this routine is the head of the bpstat
-   list - a list of the eventpoints that caused this stop.  This
+   list - a list of the eventpoints that caused this stop.  KIND is
+   the target_waitkind for the stopping event.  This
    routine calls the generic print routine for printing a message
    about reasons for stopping.  This will print (for example) the
    "Breakpoint n," part of the output.  The return value of this
@@ -3465,7 +3466,7 @@ print_bp_stop_message (bpstat bs)
    further info to be printed.  */
 
 enum print_stop_action
-bpstat_print (bpstat bs)
+bpstat_print (bpstat bs, int kind)
 {
   int val;
 
@@ -3482,6 +3483,18 @@ bpstat_print (bpstat bs)
 	return val;
     }
 
+  /* If we had hit a shared library event breakpoint,
+     print_bp_stop_message would print out this message.  If we hit an
+     OS-level shared library event, do the same thing.  */
+  if (kind == TARGET_WAITKIND_LOADED)
+    {
+      printf_filtered (_("Stopped due to shared library event\n"));
+      if (ui_out_is_mi_like_p (current_uiout))
+	ui_out_field_string (current_uiout, "reason",
+			     async_reason_lookup (EXEC_ASYNC_SOLIB_EVENT));
+      return PRINT_NOTHING;
+    }
+
   /* We reached the end of the chain, or we got a null BS to start
      with and nothing was printed.  */
   return PRINT_UNKNOWN;
@@ -6176,12 +6189,25 @@ breakpoint_hit_catch_fork (const struct bp_location *bl,
 static enum print_stop_action
 print_it_catch_fork (bpstat bs)
 {
+  struct ui_out *uiout = current_uiout;
   struct breakpoint *b = bs->breakpoint_at;
   struct fork_catchpoint *c = (struct fork_catchpoint *) bs->breakpoint_at;
 
   annotate_catchpoint (b->number);
-  printf_filtered (_("\nCatchpoint %d (forked process %d), "),
-		   b->number, ptid_get_pid (c->forked_inferior_pid));
+  if (b->disposition == disp_del)
+    ui_out_text (uiout, "\nTemporary catchpoint ");
+  else
+    ui_out_text (uiout, "\nCatchpoint ");
+  if (ui_out_is_mi_like_p (uiout))
+    {
+      ui_out_field_string (uiout, "reason",
+			   async_reason_lookup (EXEC_ASYNC_FORK));
+      ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
+    }
+  ui_out_field_int (uiout, "bkptno", b->number);
+  ui_out_text (uiout, " (forked process ");
+  ui_out_field_int (uiout, "newpid", ptid_get_pid (c->forked_inferior_pid));
+  ui_out_text (uiout, "), ");
   return PRINT_SRC_AND_LOC;
 }
 
@@ -6272,12 +6298,25 @@ breakpoint_hit_catch_vfork (const struct bp_location *bl,
 static enum print_stop_action
 print_it_catch_vfork (bpstat bs)
 {
+  struct ui_out *uiout = current_uiout;
   struct breakpoint *b = bs->breakpoint_at;
   struct fork_catchpoint *c = (struct fork_catchpoint *) b;
 
   annotate_catchpoint (b->number);
-  printf_filtered (_("\nCatchpoint %d (vforked process %d), "),
-		   b->number, ptid_get_pid (c->forked_inferior_pid));
+  if (b->disposition == disp_del)
+    ui_out_text (uiout, "\nTemporary catchpoint ");
+  else
+    ui_out_text (uiout, "\nCatchpoint ");
+  if (ui_out_is_mi_like_p (uiout))
+    {
+      ui_out_field_string (uiout, "reason",
+			   async_reason_lookup (EXEC_ASYNC_VFORK));
+      ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
+    }
+  ui_out_field_int (uiout, "bkptno", b->number);
+  ui_out_text (uiout, " (vforked process ");
+  ui_out_field_int (uiout, "newpid", ptid_get_pid (c->forked_inferior_pid));
+  ui_out_text (uiout, "), ");
   return PRINT_SRC_AND_LOC;
 }
 
@@ -6486,6 +6525,7 @@ breakpoint_hit_catch_syscall (const struct bp_location *bl,
 static enum print_stop_action
 print_it_catch_syscall (bpstat bs)
 {
+  struct ui_out *uiout = current_uiout;
   struct breakpoint *b = bs->breakpoint_at;
   /* These are needed because we want to know in which state a
      syscall is.  It can be in the TARGET_WAITKIND_SYSCALL_ENTRY
@@ -6494,7 +6534,6 @@ print_it_catch_syscall (bpstat bs)
   ptid_t ptid;
   struct target_waitstatus last;
   struct syscall s;
-  struct cleanup *old_chain;
   char *syscall_id;
 
   get_last_target_status (&ptid, &last);
@@ -6503,21 +6542,31 @@ print_it_catch_syscall (bpstat bs)
 
   annotate_catchpoint (b->number);
 
-  if (s.name == NULL)
-    syscall_id = xstrprintf ("%d", last.value.syscall_number);
+  if (b->disposition == disp_del)
+    ui_out_text (uiout, "\nTemporary catchpoint ");
   else
-    syscall_id = xstrprintf ("'%s'", s.name);
-
-  old_chain = make_cleanup (xfree, syscall_id);
+    ui_out_text (uiout, "\nCatchpoint ");
+  if (ui_out_is_mi_like_p (uiout))
+    {
+      ui_out_field_string (uiout, "reason",
+			   async_reason_lookup (last.kind == TARGET_WAITKIND_SYSCALL_ENTRY
+						? EXEC_ASYNC_SYSCALL_ENTRY
+						: EXEC_ASYNC_SYSCALL_RETURN));
+      ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
+    }
+  ui_out_field_int (uiout, "bkptno", b->number);
 
   if (last.kind == TARGET_WAITKIND_SYSCALL_ENTRY)
-    printf_filtered (_("\nCatchpoint %d (call to syscall %s), "),
-                     b->number, syscall_id);
-  else if (last.kind == TARGET_WAITKIND_SYSCALL_RETURN)
-    printf_filtered (_("\nCatchpoint %d (returned from syscall %s), "),
-                     b->number, syscall_id);
+    ui_out_text (uiout, " (call to syscall ");
+  else
+    ui_out_text (uiout, " (returned from syscall ");
 
-  do_cleanups (old_chain);
+  if (s.name == NULL || ui_out_is_mi_like_p (uiout))
+    ui_out_field_int (uiout, "syscall-number", last.value.syscall_number);
+  if (s.name != NULL)
+    ui_out_field_string (uiout, "syscall-name", s.name);
+
+  ui_out_text (uiout, "), ");
 
   return PRINT_SRC_AND_LOC;
 }
@@ -6760,12 +6809,26 @@ breakpoint_hit_catch_exec (const struct bp_location *bl,
 static enum print_stop_action
 print_it_catch_exec (bpstat bs)
 {
+  struct ui_out *uiout = current_uiout;
   struct breakpoint *b = bs->breakpoint_at;
   struct exec_catchpoint *c = (struct exec_catchpoint *) b;
 
   annotate_catchpoint (b->number);
-  printf_filtered (_("\nCatchpoint %d (exec'd %s), "), b->number,
-		   c->exec_pathname);
+  if (b->disposition == disp_del)
+    ui_out_text (uiout, "\nTemporary catchpoint ");
+  else
+    ui_out_text (uiout, "\nCatchpoint ");
+  if (ui_out_is_mi_like_p (uiout))
+    {
+      ui_out_field_string (uiout, "reason",
+			   async_reason_lookup (EXEC_ASYNC_EXEC));
+      ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
+    }
+  ui_out_field_int (uiout, "bkptno", b->number);
+  ui_out_text (uiout, " (exec'd ");
+  ui_out_field_string (uiout, "new-exec", c->exec_pathname);
+  ui_out_text (uiout, "), ");
+
   return PRINT_SRC_AND_LOC;
 }
 
@@ -11133,6 +11196,7 @@ internal_bkpt_check_status (bpstat bs)
 static enum print_stop_action
 internal_bkpt_print_it (bpstat bs)
 {
+  struct ui_out *uiout = current_uiout;
   struct breakpoint *b;
 
   b = bs->breakpoint_at;
@@ -11144,6 +11208,9 @@ internal_bkpt_print_it (bpstat bs)
 	 variable?  (If so, we report this as a generic, "Stopped due
 	 to shlib event" message.) */
       printf_filtered (_("Stopped due to shared library event\n"));
+      if (ui_out_is_mi_like_p (uiout))
+	ui_out_field_string (uiout, "reason",
+			     async_reason_lookup (EXEC_ASYNC_SOLIB_EVENT));
       break;
 
     case bp_thread_event:
diff --git a/gdb/breakpoint.h b/gdb/breakpoint.h
index 506ae80..8a7287d 100644
--- a/gdb/breakpoint.h
+++ b/gdb/breakpoint.h
@@ -880,7 +880,7 @@ extern int bpstat_should_step (void);
 /* Print a message indicating what happened.  Returns nonzero to
    say that only the source line should be printed after this (zero
    return means print the frame as well as the source line).  */
-extern enum print_stop_action bpstat_print (bpstat);
+extern enum print_stop_action bpstat_print (bpstat, int);
 
 /* Put in *NUM the breakpoint number of the first breakpoint we are
    stopped at.  *BSP upon return is a bpstat which points to the
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index f4f7f1e..c13cd62 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -26130,6 +26130,25 @@ The inferior exited.
 The inferior exited normally.
 @item signal-received 
 A signal was received by the inferior.
+@item solib-event
+The inferior has stopped due to a library being loaded or unloaded.
+This can only happen when @code{stop-on-solib-events} (@pxref{Files})
+is set.
+@item fork
+The inferior has forked.  This is reported when @code{catch fork}
+(@pxref{Set Catchpoints}) has been used.
+@item vfork
+The inferior has vforked.  This is reported in when @code{catch vfork}
+(@pxref{Set Catchpoints}) has been used.
+@item syscall-entry
+The inferior entered a system call.  This is reported when @code{catch
+syscall} (@pxref{Set Catchpoints}) has been used.
+@item syscall-entry
+The inferior returned from a system call.  This is reported when
+@code{catch syscall} (@pxref{Set Catchpoints}) has been used.
+@item exec
+The inferior called @code{exec}.  This is reported when @code{catch exec}
+(@pxref{Set Catchpoints}) has been used.
 @end table
 
 The @var{id} field identifies the thread that directly caused the stop
diff --git a/gdb/infrun.c b/gdb/infrun.c
index 3361926..5a0f1d2 100644
--- a/gdb/infrun.c
+++ b/gdb/infrun.c
@@ -5971,22 +5971,10 @@ normal_stop (void)
 	  int do_frame_printing = 1;
 	  struct thread_info *tp = inferior_thread ();
 
-	  bpstat_ret = bpstat_print (tp->control.stop_bpstat);
+	  bpstat_ret = bpstat_print (tp->control.stop_bpstat, last.kind);
 	  switch (bpstat_ret)
 	    {
 	    case PRINT_UNKNOWN:
-	      /* If we had hit a shared library event breakpoint,
-		 bpstat_print would print out this message.  If we hit
-		 an OS-level shared library event, do the same
-		 thing.  */
-	      if (last.kind == TARGET_WAITKIND_LOADED)
-		{
-		  printf_filtered (_("Stopped due to shared library event\n"));
-		  source_flag = SRC_LINE;	/* something bogus */
-		  do_frame_printing = 0;
-		  break;
-		}
-
 	      /* FIXME: cagney/2002-12-01: Given that a frame ID does
 	         (or should) carry around the function and does (or
 	         should) use that when doing a frame comparison.  */
diff --git a/gdb/mi/mi-common.c b/gdb/mi/mi-common.c
index e7dd3c4..8fb9799 100644
--- a/gdb/mi/mi-common.c
+++ b/gdb/mi/mi-common.c
@@ -35,6 +35,12 @@ static const char * const async_reason_string_lookup[] =
   "exited",
   "exited-normally",
   "signal-received",
+  "solib-event",
+  "fork",
+  "vfork",
+  "syscall-entry",
+  "syscall-return",
+  "exec",
   NULL
 };
 
diff --git a/gdb/mi/mi-common.h b/gdb/mi/mi-common.h
index dc5fc8e..9ecc5a1 100644
--- a/gdb/mi/mi-common.h
+++ b/gdb/mi/mi-common.h
@@ -37,6 +37,12 @@ enum async_reply_reason
   EXEC_ASYNC_EXITED,
   EXEC_ASYNC_EXITED_NORMALLY,
   EXEC_ASYNC_SIGNAL_RECEIVED,
+  EXEC_ASYNC_SOLIB_EVENT,
+  EXEC_ASYNC_FORK,
+  EXEC_ASYNC_VFORK,
+  EXEC_ASYNC_SYSCALL_ENTRY,
+  EXEC_ASYNC_SYSCALL_RETURN,
+  EXEC_ASYNC_EXEC,
   /* This is here only to represent the number of enums.  */
   EXEC_ASYNC_LAST
 };
diff --git a/gdb/mi/mi-interp.c b/gdb/mi/mi-interp.c
index 2aec1c7..b075e33 100644
--- a/gdb/mi/mi-interp.c
+++ b/gdb/mi/mi-interp.c
@@ -427,9 +427,14 @@ mi_on_normal_stop (struct bpstats *bs, int print_frame)
 	     the frame again.  In practice, this can only happen when running
 	     a CLI command in MI.  */
 	  struct ui_out *saved_uiout = current_uiout;
+	  struct target_waitstatus last;
+	  ptid_t last_ptid;
 
 	  current_uiout = mi_uiout;
-	  bpstat_print (bs);
+
+	  get_last_target_status (&last_ptid, &last);
+	  bpstat_print (bs, last.kind);
+
 	  print_stack_frame (get_selected_frame (NULL), 0, SRC_AND_LOC);
 	  current_uiout = saved_uiout;
 	}
diff --git a/gdb/testsuite/gdb.mi/mi-solib.exp b/gdb/testsuite/gdb.mi/mi-solib.exp
new file mode 100644
index 0000000..a8ef84c
--- /dev/null
+++ b/gdb/testsuite/gdb.mi/mi-solib.exp
@@ -0,0 +1,55 @@
+# Copyright 2011 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/>.
+
+load_lib mi-support.exp
+set MIFLAGS "-i=mi2"
+
+gdb_exit
+if [mi_gdb_start] {
+    continue
+}
+
+set libname "solib-lib"
+set srcfile_lib ${srcdir}/${subdir}/${libname}.c
+set binfile_lib ${objdir}/${subdir}/${libname}.so
+set lib_flags [list debug ldflags=-Wl,-Bsymbolic]
+
+set testfile "solib-main"
+set srcfile ${srcdir}/${subdir}/${testfile}.c
+set binfile ${objdir}/${subdir}/${testfile}
+set bin_flags [list debug shlib=${binfile_lib}]
+
+if [get_compiler_info ${binfile}] {
+    return -1
+}
+
+if { [gdb_compile_shlib ${srcfile_lib} ${binfile_lib} $lib_flags] != ""
+     || [gdb_compile ${srcfile} ${binfile} executable $bin_flags] != "" } {
+  untested "Could not compile $binfile_lib or $binfile."
+  return -1
+}
+
+mi_delete_breakpoints
+mi_gdb_reinitialize_dir $srcdir/$subdir
+mi_gdb_reinitialize_dir $srcdir/$subdir
+mi_gdb_load ${binfile}
+
+mi_gdb_test "777-gdb-set stop-on-solib-events 1" "777\\^done" \
+    "set stop-on-solib-events"
+
+# We use "run" rather than "-exec-run" here in order to test that CLI
+# commands still cause the correct MI output to be generated.
+mi_run_with_cli
+mi_expect_stop solib-event .* .* .* .* .* "check for solib event"
diff --git a/gdb/testsuite/gdb.mi/solib-lib.c b/gdb/testsuite/gdb.mi/solib-lib.c
new file mode 100644
index 0000000..00a1595
--- /dev/null
+++ b/gdb/testsuite/gdb.mi/solib-lib.c
@@ -0,0 +1,20 @@
+/* Copyright 2011 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/>.
+*/
+#include <stdio.h>
+
+void solibfunction(void)
+{
+}
diff --git a/gdb/testsuite/gdb.mi/solib-main.c b/gdb/testsuite/gdb.mi/solib-main.c
new file mode 100644
index 0000000..df58efc
--- /dev/null
+++ b/gdb/testsuite/gdb.mi/solib-main.c
@@ -0,0 +1,24 @@
+/* Copyright 2011 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/>.
+*/
+#include <stdio.h>
+
+extern void solibfunction(void);
+
+int main ()
+{
+  solibfunction ();
+  return 0;
+}
diff --git a/gdb/testsuite/lib/mi-support.exp b/gdb/testsuite/lib/mi-support.exp
index 63097cb..e07562d 100644
--- a/gdb/testsuite/lib/mi-support.exp
+++ b/gdb/testsuite/lib/mi-support.exp
@@ -788,7 +788,7 @@ proc mi_gdb_test { args } {
 # In patterns, the newline sequence ``\r\n'' is matched explicitly as
 # ``.*$'' could swallow up output that we attempt to match elsewhere.
 
-proc mi_run_cmd {args} {
+proc mi_run_cmd_full {use_mi_command args} {
     global suppress_flag
     if { $suppress_flag } {
 	return -1
@@ -797,6 +797,14 @@ proc mi_run_cmd {args} {
     global thread_selected_re
     global library_loaded_re
 
+    if {$use_mi_command} {
+	set run_prefix "220-exec-"
+	set run_match "220"
+    } else {
+	set run_prefix ""
+	set run_match ""
+    }
+
     if [target_info exists gdb_init_command] {
 	send_gdb "[target_info gdb_init_command]\n";
 	gdb_expect 30 {
@@ -814,9 +822,9 @@ proc mi_run_cmd {args} {
 
     if [target_info exists use_gdb_stub] {
 	if [target_info exists gdb,do_reload_on_run] {
-	    send_gdb "220-exec-continue\n";
+	    send_gdb "${run_prefix}continue\n";
 	    gdb_expect 60 {
-		-re "220\\^running\[\r\n\]+\\*running,thread-id=\"\[^\"\]+\"\r\n$mi_gdb_prompt" {}
+		-re "${run_match}\\^running\[\r\n\]+\\*running,thread-id=\"\[^\"\]+\"\r\n$mi_gdb_prompt" {}
 		default {}
 	    }
 	    return 0;
@@ -835,9 +843,9 @@ proc mi_run_cmd {args} {
 	return 0
     }
 
-    send_gdb "220-exec-run $args\n"
+    send_gdb "${run_prefix}run $args\n"
     gdb_expect {
-	-re "220\\^running\r\n(\\*running,thread-id=\"\[^\"\]+\"\r\n|=thread-created,id=\"1\",group-id=\"\[0-9\]+\"\r\n)*(${library_loaded_re})*(${thread_selected_re})?${mi_gdb_prompt}" {
+	-re "${run_match}\\^running\r\n(\\*running,thread-id=\"\[^\"\]+\"\r\n|=thread-created,id=\"1\",group-id=\"\[0-9\]+\"\r\n)*(${library_loaded_re})*(${thread_selected_re})?${mi_gdb_prompt}" {
 	}
 	-re "\\^error,msg=\"The target does not support running in non-stop mode.\"" {
 	    unsupported "Non-stop mode not supported"
@@ -853,6 +861,14 @@ proc mi_run_cmd {args} {
     return 0
 }
 
+proc mi_run_cmd {args} {
+    return [eval mi_run_cmd_full 1 $args]
+}
+
+proc mi_run_with_cli {args} {
+    return [eval mi_run_cmd_full 0 $args]
+}
+
 #
 # Just like run-to-main but works with the MI interface
 #

Re: [3/3] RFC: fix PR mi/8444

[Pedro Alves]

On Thursday 17 November 2011 16:41:13, Tom Tromey wrote:
> >>>>> "Pedro" == Pedro Alves <pedro@codesourcery.com> writes:
> 
> Pedro> TARGET_WAITKIND_LOADED targets print this elsewhere, as
> Pedro> they don't use a shared library event breakpoint.  See
> Pedro> infrun.c:normal_stop.  Can you give that the same treatment?
> 
> What do you think of the appended?
> 
> I don't think I have access to a TARGET_WAITKIND_LOADED target, so I
> can't test this.
> 
> I added a 'kind' argument to bpstat_print, to centralize the printing.
> I wasn't sure if this is a good idea or not; I think the centralization
> idea is fine, but I wasn't sure if this addition is violating some
> abstraction boundary.

Yeah, looks fine.  This should probably be a catchpoint anyway.

> --- /dev/null
> +++ b/gdb/testsuite/gdb.mi/mi-solib.exp
> @@ -0,0 +1,55 @@

> +load_lib mi-support.exp
> +set MIFLAGS "-i=mi2"

The test uses shared libs -- it should be skipped if skip_shlib_tests.

> +
> +gdb_exit
> +if [mi_gdb_start] {
> +    continue
> +}
> +
> +set libname "solib-lib"
> +set srcfile_lib ${srcdir}/${subdir}/${libname}.c
> +set binfile_lib ${objdir}/${subdir}/${libname}.so
> +set lib_flags [list debug ldflags=-Wl,-Bsymbolic]

Is -Bsymbolic necessary?

> +
> +set testfile "solib-main"
> +set srcfile ${srcdir}/${subdir}/${testfile}.c
> +set binfile ${objdir}/${subdir}/${testfile}
> +set bin_flags [list debug shlib=${binfile_lib}]
> +
> +if [get_compiler_info ${binfile}] {
> +    return -1
> +}
> +
> +if { [gdb_compile_shlib ${srcfile_lib} ${binfile_lib} $lib_flags] != ""
> +     || [gdb_compile ${srcfile} ${binfile} executable $bin_flags] != "" } {
> +  untested "Could not compile $binfile_lib or $binfile."
> +  return -1
> +}
> +
> +mi_delete_breakpoints
> +mi_gdb_reinitialize_dir $srcdir/$subdir
> +mi_gdb_reinitialize_dir $srcdir/$subdir
> +mi_gdb_load ${binfile}

gdb_load_shlibs missing.

> --- /dev/null
> +++ b/gdb/testsuite/gdb.mi/solib-lib.c

> +#include <stdio.h>

Unnecessary header.

> --- /dev/null
> +++ b/gdb/testsuite/gdb.mi/solib-main.c

> +*/
> +#include <stdio.h>

Ditto.

>  
> +proc mi_run_cmd {args} {
> +    return [eval mi_run_cmd_full 1 $args]
> +}
> +
> +proc mi_run_with_cli {args} {
> +    return [eval mi_run_cmd_full 0 $args]
> +}

Describing comments would be nice.

Otherwise looks good to me.

-- 
Pedro Alves

Re: [3/3] RFC: fix PR mi/8444

[Tom Tromey]

>>>>> "Pedro" == Pedro Alves <pedro@codesourcery.com> writes:

Pedro> The test uses shared libs -- it should be skipped if skip_shlib_tests.

Thanks

Pedro> Is -Bsymbolic necessary?

Nope, I removed it.

Pedro> gdb_load_shlibs missing.

Added.

Pedro> Unnecessary header.
Pedro> Ditto.

Removed.

Pedro> Describing comments would be nice.

Added.

I also changed two places to use ui_out_text rather than
printf_filtered, as discussed in the other thread.

I'm checking this version in.

Tom

2011-11-17  Tom Tromey  <tromey@redhat.com>

	PR mi/8444:
	* mi/mi-common.h (EXEC_ASYNC_SOLIB_EVENT, EXEC_ASYNC_FORK)
	(EXEC_ASYNC_VFORK, EXEC_ASYNC_SYSCALL_ENTRY)
	(EXEC_ASYNC_SYSCALL_RETURN, EXEC_ASYNC_EXEC): New constants.
	* mi/mi-common.c (async_reason_string_lookup): Add new reasons.
	* breakpoint.c (print_it_catch_fork, print_it_catch_vfork)
	(print_it_catch_syscall, print_it_catch_exec)
	(internal_bkpt_print_it): Use ui_out.  Emit stop reason.
	(bpstat_print): Add 'kind' argument.  Handle
	TARGET_WAITKIND_LOADED.
	* infrun.c (normal_stop): Update for bpstat_print change.  Don't
	handle TARGET_WAITKIND_LOADED here.
	* breakpoint.h (bpstat_print): Update.

2011-11-16  Tom Tromey  <tromey@redhat.com>

	* gdb.texinfo (GDB/MI Async Records): Document new *stopped
	reasons.

2011-11-16  Tom Tromey  <tromey@redhat.com>

	* lib/mi-support.exp (mi_run_cmd_full): Rename from mi_run_cmd.
	Add "use_mi_command" argument.
	(mi_run_cmd, mi_run_with_cli): New procs.
	* gdb.mi/solib-lib.c: New file.
	* gdb.mi/solib-main.c: New file.
	* gdb.mi/mi-solib.exp: New file.

From be0ab16c33db2900e643f155bb7ec3f7420e2328 Mon Sep 17 00:00:00 2001
From: Tom Tromey <tromey@redhat.com>
Date: Wed, 16 Nov 2011 08:31:11 -0700
Subject: [PATCH 3/3] fix PR 8444

---
 gdb/ChangeLog                     |   16 ++++++
 gdb/breakpoint.c                  |  109 ++++++++++++++++++++++++++++++-------
 gdb/breakpoint.h                  |    2 +-
 gdb/doc/ChangeLog                 |    5 ++
 gdb/doc/gdb.texinfo               |   19 +++++++
 gdb/infrun.c                      |   14 +-----
 gdb/mi/mi-common.c                |    6 ++
 gdb/mi/mi-common.h                |    6 ++
 gdb/mi/mi-interp.c                |    7 ++-
 gdb/testsuite/ChangeLog           |    9 +++
 gdb/testsuite/gdb.mi/mi-solib.exp |   62 +++++++++++++++++++++
 gdb/testsuite/gdb.mi/solib-lib.c  |   19 +++++++
 gdb/testsuite/gdb.mi/solib-main.c |   23 ++++++++
 gdb/testsuite/lib/mi-support.exp  |   32 +++++++++--
 14 files changed, 288 insertions(+), 41 deletions(-)
 create mode 100644 gdb/testsuite/gdb.mi/mi-solib.exp
 create mode 100644 gdb/testsuite/gdb.mi/solib-lib.c
 create mode 100644 gdb/testsuite/gdb.mi/solib-main.c

diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c
index 8f09296..d8586ce 100644
--- a/gdb/breakpoint.c
+++ b/gdb/breakpoint.c
@@ -3446,7 +3446,8 @@ print_bp_stop_message (bpstat bs)
 
 /* Print a message indicating what happened.  This is called from
    normal_stop().  The input to this routine is the head of the bpstat
-   list - a list of the eventpoints that caused this stop.  This
+   list - a list of the eventpoints that caused this stop.  KIND is
+   the target_waitkind for the stopping event.  This
    routine calls the generic print routine for printing a message
    about reasons for stopping.  This will print (for example) the
    "Breakpoint n," part of the output.  The return value of this
@@ -3465,7 +3466,7 @@ print_bp_stop_message (bpstat bs)
    further info to be printed.  */
 
 enum print_stop_action
-bpstat_print (bpstat bs)
+bpstat_print (bpstat bs, int kind)
 {
   int val;
 
@@ -3482,6 +3483,18 @@ bpstat_print (bpstat bs)
 	return val;
     }
 
+  /* If we had hit a shared library event breakpoint,
+     print_bp_stop_message would print out this message.  If we hit an
+     OS-level shared library event, do the same thing.  */
+  if (kind == TARGET_WAITKIND_LOADED)
+    {
+      ui_out_text (current_uiout, _("Stopped due to shared library event\n"));
+      if (ui_out_is_mi_like_p (current_uiout))
+	ui_out_field_string (current_uiout, "reason",
+			     async_reason_lookup (EXEC_ASYNC_SOLIB_EVENT));
+      return PRINT_NOTHING;
+    }
+
   /* We reached the end of the chain, or we got a null BS to start
      with and nothing was printed.  */
   return PRINT_UNKNOWN;
@@ -6176,12 +6189,25 @@ breakpoint_hit_catch_fork (const struct bp_location *bl,
 static enum print_stop_action
 print_it_catch_fork (bpstat bs)
 {
+  struct ui_out *uiout = current_uiout;
   struct breakpoint *b = bs->breakpoint_at;
   struct fork_catchpoint *c = (struct fork_catchpoint *) bs->breakpoint_at;
 
   annotate_catchpoint (b->number);
-  printf_filtered (_("\nCatchpoint %d (forked process %d), "),
-		   b->number, ptid_get_pid (c->forked_inferior_pid));
+  if (b->disposition == disp_del)
+    ui_out_text (uiout, "\nTemporary catchpoint ");
+  else
+    ui_out_text (uiout, "\nCatchpoint ");
+  if (ui_out_is_mi_like_p (uiout))
+    {
+      ui_out_field_string (uiout, "reason",
+			   async_reason_lookup (EXEC_ASYNC_FORK));
+      ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
+    }
+  ui_out_field_int (uiout, "bkptno", b->number);
+  ui_out_text (uiout, " (forked process ");
+  ui_out_field_int (uiout, "newpid", ptid_get_pid (c->forked_inferior_pid));
+  ui_out_text (uiout, "), ");
   return PRINT_SRC_AND_LOC;
 }
 
@@ -6272,12 +6298,25 @@ breakpoint_hit_catch_vfork (const struct bp_location *bl,
 static enum print_stop_action
 print_it_catch_vfork (bpstat bs)
 {
+  struct ui_out *uiout = current_uiout;
   struct breakpoint *b = bs->breakpoint_at;
   struct fork_catchpoint *c = (struct fork_catchpoint *) b;
 
   annotate_catchpoint (b->number);
-  printf_filtered (_("\nCatchpoint %d (vforked process %d), "),
-		   b->number, ptid_get_pid (c->forked_inferior_pid));
+  if (b->disposition == disp_del)
+    ui_out_text (uiout, "\nTemporary catchpoint ");
+  else
+    ui_out_text (uiout, "\nCatchpoint ");
+  if (ui_out_is_mi_like_p (uiout))
+    {
+      ui_out_field_string (uiout, "reason",
+			   async_reason_lookup (EXEC_ASYNC_VFORK));
+      ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
+    }
+  ui_out_field_int (uiout, "bkptno", b->number);
+  ui_out_text (uiout, " (vforked process ");
+  ui_out_field_int (uiout, "newpid", ptid_get_pid (c->forked_inferior_pid));
+  ui_out_text (uiout, "), ");
   return PRINT_SRC_AND_LOC;
 }
 
@@ -6486,6 +6525,7 @@ breakpoint_hit_catch_syscall (const struct bp_location *bl,
 static enum print_stop_action
 print_it_catch_syscall (bpstat bs)
 {
+  struct ui_out *uiout = current_uiout;
   struct breakpoint *b = bs->breakpoint_at;
   /* These are needed because we want to know in which state a
      syscall is.  It can be in the TARGET_WAITKIND_SYSCALL_ENTRY
@@ -6494,7 +6534,6 @@ print_it_catch_syscall (bpstat bs)
   ptid_t ptid;
   struct target_waitstatus last;
   struct syscall s;
-  struct cleanup *old_chain;
   char *syscall_id;
 
   get_last_target_status (&ptid, &last);
@@ -6503,21 +6542,31 @@ print_it_catch_syscall (bpstat bs)
 
   annotate_catchpoint (b->number);
 
-  if (s.name == NULL)
-    syscall_id = xstrprintf ("%d", last.value.syscall_number);
+  if (b->disposition == disp_del)
+    ui_out_text (uiout, "\nTemporary catchpoint ");
   else
-    syscall_id = xstrprintf ("'%s'", s.name);
-
-  old_chain = make_cleanup (xfree, syscall_id);
+    ui_out_text (uiout, "\nCatchpoint ");
+  if (ui_out_is_mi_like_p (uiout))
+    {
+      ui_out_field_string (uiout, "reason",
+			   async_reason_lookup (last.kind == TARGET_WAITKIND_SYSCALL_ENTRY
+						? EXEC_ASYNC_SYSCALL_ENTRY
+						: EXEC_ASYNC_SYSCALL_RETURN));
+      ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
+    }
+  ui_out_field_int (uiout, "bkptno", b->number);
 
   if (last.kind == TARGET_WAITKIND_SYSCALL_ENTRY)
-    printf_filtered (_("\nCatchpoint %d (call to syscall %s), "),
-                     b->number, syscall_id);
-  else if (last.kind == TARGET_WAITKIND_SYSCALL_RETURN)
-    printf_filtered (_("\nCatchpoint %d (returned from syscall %s), "),
-                     b->number, syscall_id);
+    ui_out_text (uiout, " (call to syscall ");
+  else
+    ui_out_text (uiout, " (returned from syscall ");
 
-  do_cleanups (old_chain);
+  if (s.name == NULL || ui_out_is_mi_like_p (uiout))
+    ui_out_field_int (uiout, "syscall-number", last.value.syscall_number);
+  if (s.name != NULL)
+    ui_out_field_string (uiout, "syscall-name", s.name);
+
+  ui_out_text (uiout, "), ");
 
   return PRINT_SRC_AND_LOC;
 }
@@ -6760,12 +6809,26 @@ breakpoint_hit_catch_exec (const struct bp_location *bl,
 static enum print_stop_action
 print_it_catch_exec (bpstat bs)
 {
+  struct ui_out *uiout = current_uiout;
   struct breakpoint *b = bs->breakpoint_at;
   struct exec_catchpoint *c = (struct exec_catchpoint *) b;
 
   annotate_catchpoint (b->number);
-  printf_filtered (_("\nCatchpoint %d (exec'd %s), "), b->number,
-		   c->exec_pathname);
+  if (b->disposition == disp_del)
+    ui_out_text (uiout, "\nTemporary catchpoint ");
+  else
+    ui_out_text (uiout, "\nCatchpoint ");
+  if (ui_out_is_mi_like_p (uiout))
+    {
+      ui_out_field_string (uiout, "reason",
+			   async_reason_lookup (EXEC_ASYNC_EXEC));
+      ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
+    }
+  ui_out_field_int (uiout, "bkptno", b->number);
+  ui_out_text (uiout, " (exec'd ");
+  ui_out_field_string (uiout, "new-exec", c->exec_pathname);
+  ui_out_text (uiout, "), ");
+
   return PRINT_SRC_AND_LOC;
 }
 
@@ -11133,6 +11196,7 @@ internal_bkpt_check_status (bpstat bs)
 static enum print_stop_action
 internal_bkpt_print_it (bpstat bs)
 {
+  struct ui_out *uiout = current_uiout;
   struct breakpoint *b;
 
   b = bs->breakpoint_at;
@@ -11143,7 +11207,10 @@ internal_bkpt_print_it (bpstat bs)
       /* Did we stop because the user set the stop_on_solib_events
 	 variable?  (If so, we report this as a generic, "Stopped due
 	 to shlib event" message.) */
-      printf_filtered (_("Stopped due to shared library event\n"));
+      ui_out_text (uiout, _("Stopped due to shared library event\n"));
+      if (ui_out_is_mi_like_p (uiout))
+	ui_out_field_string (uiout, "reason",
+			     async_reason_lookup (EXEC_ASYNC_SOLIB_EVENT));
       break;
 
     case bp_thread_event:
diff --git a/gdb/breakpoint.h b/gdb/breakpoint.h
index 506ae80..8a7287d 100644
--- a/gdb/breakpoint.h
+++ b/gdb/breakpoint.h
@@ -880,7 +880,7 @@ extern int bpstat_should_step (void);
 /* Print a message indicating what happened.  Returns nonzero to
    say that only the source line should be printed after this (zero
    return means print the frame as well as the source line).  */
-extern enum print_stop_action bpstat_print (bpstat);
+extern enum print_stop_action bpstat_print (bpstat, int);
 
 /* Put in *NUM the breakpoint number of the first breakpoint we are
    stopped at.  *BSP upon return is a bpstat which points to the
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index f4f7f1e..c13cd62 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -26130,6 +26130,25 @@ The inferior exited.
 The inferior exited normally.
 @item signal-received 
 A signal was received by the inferior.
+@item solib-event
+The inferior has stopped due to a library being loaded or unloaded.
+This can only happen when @code{stop-on-solib-events} (@pxref{Files})
+is set.
+@item fork
+The inferior has forked.  This is reported when @code{catch fork}
+(@pxref{Set Catchpoints}) has been used.
+@item vfork
+The inferior has vforked.  This is reported in when @code{catch vfork}
+(@pxref{Set Catchpoints}) has been used.
+@item syscall-entry
+The inferior entered a system call.  This is reported when @code{catch
+syscall} (@pxref{Set Catchpoints}) has been used.
+@item syscall-entry
+The inferior returned from a system call.  This is reported when
+@code{catch syscall} (@pxref{Set Catchpoints}) has been used.
+@item exec
+The inferior called @code{exec}.  This is reported when @code{catch exec}
+(@pxref{Set Catchpoints}) has been used.
 @end table
 
 The @var{id} field identifies the thread that directly caused the stop
diff --git a/gdb/infrun.c b/gdb/infrun.c
index 3361926..5a0f1d2 100644
--- a/gdb/infrun.c
+++ b/gdb/infrun.c
@@ -5971,22 +5971,10 @@ normal_stop (void)
 	  int do_frame_printing = 1;
 	  struct thread_info *tp = inferior_thread ();
 
-	  bpstat_ret = bpstat_print (tp->control.stop_bpstat);
+	  bpstat_ret = bpstat_print (tp->control.stop_bpstat, last.kind);
 	  switch (bpstat_ret)
 	    {
 	    case PRINT_UNKNOWN:
-	      /* If we had hit a shared library event breakpoint,
-		 bpstat_print would print out this message.  If we hit
-		 an OS-level shared library event, do the same
-		 thing.  */
-	      if (last.kind == TARGET_WAITKIND_LOADED)
-		{
-		  printf_filtered (_("Stopped due to shared library event\n"));
-		  source_flag = SRC_LINE;	/* something bogus */
-		  do_frame_printing = 0;
-		  break;
-		}
-
 	      /* FIXME: cagney/2002-12-01: Given that a frame ID does
 	         (or should) carry around the function and does (or
 	         should) use that when doing a frame comparison.  */
diff --git a/gdb/mi/mi-common.c b/gdb/mi/mi-common.c
index e7dd3c4..8fb9799 100644
--- a/gdb/mi/mi-common.c
+++ b/gdb/mi/mi-common.c
@@ -35,6 +35,12 @@ static const char * const async_reason_string_lookup[] =
   "exited",
   "exited-normally",
   "signal-received",
+  "solib-event",
+  "fork",
+  "vfork",
+  "syscall-entry",
+  "syscall-return",
+  "exec",
   NULL
 };
 
diff --git a/gdb/mi/mi-common.h b/gdb/mi/mi-common.h
index dc5fc8e..9ecc5a1 100644
--- a/gdb/mi/mi-common.h
+++ b/gdb/mi/mi-common.h
@@ -37,6 +37,12 @@ enum async_reply_reason
   EXEC_ASYNC_EXITED,
   EXEC_ASYNC_EXITED_NORMALLY,
   EXEC_ASYNC_SIGNAL_RECEIVED,
+  EXEC_ASYNC_SOLIB_EVENT,
+  EXEC_ASYNC_FORK,
+  EXEC_ASYNC_VFORK,
+  EXEC_ASYNC_SYSCALL_ENTRY,
+  EXEC_ASYNC_SYSCALL_RETURN,
+  EXEC_ASYNC_EXEC,
   /* This is here only to represent the number of enums.  */
   EXEC_ASYNC_LAST
 };
diff --git a/gdb/mi/mi-interp.c b/gdb/mi/mi-interp.c
index 2aec1c7..b075e33 100644
--- a/gdb/mi/mi-interp.c
+++ b/gdb/mi/mi-interp.c
@@ -427,9 +427,14 @@ mi_on_normal_stop (struct bpstats *bs, int print_frame)
 	     the frame again.  In practice, this can only happen when running
 	     a CLI command in MI.  */
 	  struct ui_out *saved_uiout = current_uiout;
+	  struct target_waitstatus last;
+	  ptid_t last_ptid;
 
 	  current_uiout = mi_uiout;
-	  bpstat_print (bs);
+
+	  get_last_target_status (&last_ptid, &last);
+	  bpstat_print (bs, last.kind);
+
 	  print_stack_frame (get_selected_frame (NULL), 0, SRC_AND_LOC);
 	  current_uiout = saved_uiout;
 	}
diff --git a/gdb/testsuite/gdb.mi/mi-solib.exp b/gdb/testsuite/gdb.mi/mi-solib.exp
new file mode 100644
index 0000000..4344f96
--- /dev/null
+++ b/gdb/testsuite/gdb.mi/mi-solib.exp
@@ -0,0 +1,62 @@
+# Copyright 2011 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/>.
+
+load_lib mi-support.exp
+set MIFLAGS "-i=mi2"
+
+if {[skip_shlib_tests]} {
+    untested mi-solib.exp
+    return -1
+}
+
+gdb_exit
+if [mi_gdb_start] {
+    continue
+}
+
+set libname "solib-lib"
+set srcfile_lib ${srcdir}/${subdir}/${libname}.c
+set binfile_lib ${objdir}/${subdir}/${libname}.so
+set lib_flags [list debug]
+
+set testfile "solib-main"
+set srcfile ${srcdir}/${subdir}/${testfile}.c
+set binfile ${objdir}/${subdir}/${testfile}
+set bin_flags [list debug shlib=${binfile_lib}]
+
+if [get_compiler_info ${binfile}] {
+    return -1
+}
+
+if { [gdb_compile_shlib ${srcfile_lib} ${binfile_lib} $lib_flags] != ""
+     || [gdb_compile ${srcfile} ${binfile} executable $bin_flags] != "" } {
+  untested "Could not compile $binfile_lib or $binfile."
+  return -1
+}
+
+mi_delete_breakpoints
+mi_gdb_reinitialize_dir $srcdir/$subdir
+mi_gdb_reinitialize_dir $srcdir/$subdir
+mi_gdb_load ${binfile}
+
+gdb_load_shlibs $binfile_lib
+
+mi_gdb_test "777-gdb-set stop-on-solib-events 1" "777\\^done" \
+    "set stop-on-solib-events"
+
+# We use "run" rather than "-exec-run" here in order to test that CLI
+# commands still cause the correct MI output to be generated.
+mi_run_with_cli
+mi_expect_stop solib-event .* .* .* .* .* "check for solib event"
diff --git a/gdb/testsuite/gdb.mi/solib-lib.c b/gdb/testsuite/gdb.mi/solib-lib.c
new file mode 100644
index 0000000..e30ce83
--- /dev/null
+++ b/gdb/testsuite/gdb.mi/solib-lib.c
@@ -0,0 +1,19 @@
+/* Copyright 2011 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/>.
+*/
+
+void solibfunction(void)
+{
+}
diff --git a/gdb/testsuite/gdb.mi/solib-main.c b/gdb/testsuite/gdb.mi/solib-main.c
new file mode 100644
index 0000000..eff210f
--- /dev/null
+++ b/gdb/testsuite/gdb.mi/solib-main.c
@@ -0,0 +1,23 @@
+/* Copyright 2011 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/>.
+*/
+
+extern void solibfunction(void);
+
+int main ()
+{
+  solibfunction ();
+  return 0;
+}
diff --git a/gdb/testsuite/lib/mi-support.exp b/gdb/testsuite/lib/mi-support.exp
index 63097cb..dc1717b 100644
--- a/gdb/testsuite/lib/mi-support.exp
+++ b/gdb/testsuite/lib/mi-support.exp
@@ -788,7 +788,7 @@ proc mi_gdb_test { args } {
 # In patterns, the newline sequence ``\r\n'' is matched explicitly as
 # ``.*$'' could swallow up output that we attempt to match elsewhere.
 
-proc mi_run_cmd {args} {
+proc mi_run_cmd_full {use_mi_command args} {
     global suppress_flag
     if { $suppress_flag } {
 	return -1
@@ -797,6 +797,14 @@ proc mi_run_cmd {args} {
     global thread_selected_re
     global library_loaded_re
 
+    if {$use_mi_command} {
+	set run_prefix "220-exec-"
+	set run_match "220"
+    } else {
+	set run_prefix ""
+	set run_match ""
+    }
+
     if [target_info exists gdb_init_command] {
 	send_gdb "[target_info gdb_init_command]\n";
 	gdb_expect 30 {
@@ -814,9 +822,9 @@ proc mi_run_cmd {args} {
 
     if [target_info exists use_gdb_stub] {
 	if [target_info exists gdb,do_reload_on_run] {
-	    send_gdb "220-exec-continue\n";
+	    send_gdb "${run_prefix}continue\n";
 	    gdb_expect 60 {
-		-re "220\\^running\[\r\n\]+\\*running,thread-id=\"\[^\"\]+\"\r\n$mi_gdb_prompt" {}
+		-re "${run_match}\\^running\[\r\n\]+\\*running,thread-id=\"\[^\"\]+\"\r\n$mi_gdb_prompt" {}
 		default {}
 	    }
 	    return 0;
@@ -835,9 +843,9 @@ proc mi_run_cmd {args} {
 	return 0
     }
 
-    send_gdb "220-exec-run $args\n"
+    send_gdb "${run_prefix}run $args\n"
     gdb_expect {
-	-re "220\\^running\r\n(\\*running,thread-id=\"\[^\"\]+\"\r\n|=thread-created,id=\"1\",group-id=\"\[0-9\]+\"\r\n)*(${library_loaded_re})*(${thread_selected_re})?${mi_gdb_prompt}" {
+	-re "${run_match}\\^running\r\n(\\*running,thread-id=\"\[^\"\]+\"\r\n|=thread-created,id=\"1\",group-id=\"\[0-9\]+\"\r\n)*(${library_loaded_re})*(${thread_selected_re})?${mi_gdb_prompt}" {
 	}
 	-re "\\^error,msg=\"The target does not support running in non-stop mode.\"" {
 	    unsupported "Non-stop mode not supported"
@@ -853,6 +861,20 @@ proc mi_run_cmd {args} {
     return 0
 }
 
+# A wrapper for mi_run_cmd_full which uses -exec-run and
+# -exec-continue, as appropriate.  ARGS are passed verbatim to
+# mi_run_cmd_full.
+proc mi_run_cmd {args} {
+    return [eval mi_run_cmd_full 1 $args]
+}
+
+# A wrapper for mi_run_cmd_full which uses the CLI commands 'run' and
+# 'continue', as appropriate.  ARGS are passed verbatim to
+# mi_run_cmd_full.
+proc mi_run_with_cli {args} {
+    return [eval mi_run_cmd_full 0 $args]
+}
+
 #
 # Just like run-to-main but works with the MI interface
 #
-- 
1.7.6.4

Re: [3/3] RFC: fix PR mi/8444

[Ulrich Weigand]

Tom Tromey wrote:

> 	* gdb.mi/mi-solib.exp: New file.

> +mi_expect_stop solib-event .* .* .* .* .* "check for solib event"

This causes spurious failures for me, since that routine expects
output in this form:

mi_expect_stop: expecting: \*stopped,reason="solib-event",frame={addr="0x[0-9A-Fa-f]+",func=".*",args=\[.*\],file="[^ ]*.*",fullname="(/[^\n]*/|\\\\[^\\]+\\[^\n]+\\|\\[^\\][^\n]*\\|[a-zA-Z]:[^\n]*\\).*",line=".*"}.*,thread-id="[0-9]+",stopped-threads=[^ ]*

but we actually get

*stopped,reason="solib-event",frame={addr="0x7dfef93c",func="_dl_debug_state",args=[],from="/lib/ld.so.1"},thread-id="1",stopped-threads="all",core="4"

The difference is that we only see a "from=" instead of "file="/"fullname="/"line=" as the PC is in a system library, and I don't have debug info installed for those ...

Bye,
Ulrich

-- 
  Dr. Ulrich Weigand
  GNU Toolchain for Linux on System z and Cell BE
  Ulrich.Weigand@de.ibm.com

[patch] testsuite: Fix mi-solib.exp without debuginfos [Re: [3/3] RFC: fix PR mi/8444]

[Jan Kratochvil]

On Fri, 25 Nov 2011 17:08:01 +0100, Ulrich Weigand wrote:
> The difference is that we only see a "from=" instead of
> "file="/"fullname="/"line=" as the PC is in a system library, and I don't
> have debug info installed for those ...

What about this patch?

I have checked the result of mi_expect_stop is not used anywhere so it is
questionable what it should return.

No regressions on {x86_64,x86_64-m32,i686}-fedora16-linux-gnu.


Thanks,
Jan


gdb/testsuite/
2011-12-02  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Fix gdb.mi/mi-solib.exp without system debug info installed.
	* lib/mi-support.exp (mi_expect_stop): Accept FILE also for `from'
	expect attribute, return 0 for it.  Update comments.

--- a/gdb/testsuite/lib/mi-support.exp
+++ b/gdb/testsuite/lib/mi-support.exp
@@ -981,9 +981,10 @@ proc mi_detect_async {} {
 
 # Wait for MI *stopped notification to appear.
 # The REASON, FUNC, ARGS, FILE and LINE are regular expressions
-# to match against whatever is output in *stopped.  ARGS should
-# not include [] the list of argument is enclosed in, and other
-# regular expressions should not include quotes.
+# to match against whatever is output in *stopped.  FILE may also match
+# filename of a file without debug info.  ARGS should not include [] the
+# list of argument is enclosed in, and other regular expressions should
+# not include quotes.
 # If EXTRA is a list of one element, it's the regular expression
 # for output expected right after *stopped, and before GDB prompt.
 # If EXTRA is a list of two elements, the first element is for
@@ -991,9 +992,10 @@ proc mi_detect_async {} {
 # right after reason field.  The regex after reason should not include
 # the comma separating it from the following fields.
 # 
-# When we fail to match output at all, -1 is returned.  Otherwise,
-# the line at which we stop is returned.  This is useful when exact
-# line is not possible to specify for some reason -- one can pass
+# When we fail to match output at all, -1 is returned.  If FILE does
+# match and the target system has no debug info for FILE return 0.
+# Otherwise, the line at which we stop is returned.  This is useful when
+# exact line is not possible to specify for some reason -- one can pass
 # the .* or "\[0-9\]*" regexps for line, and then check the line
 # programmatically.
 #
@@ -1067,11 +1069,15 @@ proc mi_expect_stop { reason func args file line extra test } {
 
     set any "\[^\n\]*"
 
-    verbose -log "mi_expect_stop: expecting: \\*stopped,${r}${a}${bn}frame=\{addr=\"$hex\",func=\"$func\",args=$args,file=\"$any$file\",fullname=\"${fullname_syntax}$file\",line=\"$line\"\}$after_stopped,thread-id=\"$decimal\",stopped-threads=$any\r\n($thread_selected_re|$breakpoint_re)*$prompt_re"
+    verbose -log "mi_expect_stop: expecting: \\*stopped,${r}${a}${bn}frame=\{addr=\"$hex\",func=\"$func\",args=$args,(?:file=\"$any$file\",fullname=\"${fullname_syntax}$file\",line=\"$line\"|from=\"$file\")\}$after_stopped,thread-id=\"$decimal\",stopped-threads=$any\r\n($thread_selected_re|$breakpoint_re)*$prompt_re"
     gdb_expect {
-	-re "\\*stopped,${r}${a}${bn}frame=\{addr=\"$hex\",func=\"$func\",args=$args,file=\"$any$file\",fullname=\"${fullname_syntax}$file\",line=\"($line)\"\}$after_stopped,thread-id=\"$decimal\",stopped-threads=$any\r\n($thread_selected_re|$breakpoint_re)*$prompt_re" {
+	-re "\\*stopped,${r}${a}${bn}frame=\{addr=\"$hex\",func=\"$func\",args=$args,(?:file=\"$any$file\",fullname=\"${fullname_syntax}$file\",line=\"($line)\"|from=\"$file\")\}$after_stopped,thread-id=\"$decimal\",stopped-threads=$any\r\n($thread_selected_re|$breakpoint_re)*$prompt_re" {
 	    pass "$test"
-            return $expect_out(2,string)
+	    if {[array names expect_out "2,string"] != ""} {
+		return $expect_out(2,string)
+	    }
+	    # No debug info available but $file does match.
+	    return 0
 	}
 	-re "\\*stopped,${r}${a}${bn}frame=\{addr=\"$hex\",func=\"$any\",args=\[\\\[\{\]$any\[\\\]\}\],file=\"$any\",fullname=\"${fullname_syntax}$any\",line=\"\[0-9\]*\"\}$after_stopped,thread-id=\"$decimal\",stopped-threads=$any\r\n($thread_selected_re|$breakpoint_re)*$prompt_re" {
             verbose -log "got $expect_out(buffer)"

Re: [patch] testsuite: Fix mi-solib.exp without debuginfos [Re: [3/3] RFC: fix PR mi/8444]

[Tom Tromey]

>>>>> "Jan" == Jan Kratochvil <jan.kratochvil@redhat.com> writes:

Jan> What about this patch?

Thanks for doing this, and sorry I didn't get to it sooner.

Jan> I have checked the result of mi_expect_stop is not used anywhere so it is
Jan> questionable what it should return.

I think it is fine to change it as you like.

Tom

[commit] [patch] testsuite: Fix mi-solib.exp without debuginfos [Re: [3/3] RFC: fix PR mi/8444]

[Jan Kratochvil]

On Fri, 02 Dec 2011 17:16:48 +0100, Tom Tromey wrote:
> >>>>> "Jan" == Jan Kratochvil <jan.kratochvil@redhat.com> writes:
> 
> Jan> What about this patch?
> 
> Thanks for doing this, and sorry I didn't get to it sooner.

Thanks, checked in:
	http://sourceware.org/ml/gdb-cvs/2011-12/msg00013.html


Regards,
Jan

Re: [patch] testsuite: Fix mi-solib.exp without debuginfos [Re: [3/3] RFC: fix PR mi/8444]

[Tom Tromey]

>>>>> "Jan" == Jan Kratochvil <jan.kratochvil@redhat.com> writes:

Jan> I have checked the result of mi_expect_stop is not used anywhere so it is
Jan> questionable what it should return.

Unfortunately, a Tcl proc returns its last computed value if there is no
explicit return.  So, this caused:

ERROR: tcl error sourcing ../../../archer/gdb/testsuite/gdb.ada/mi_catch_ex.exp.
ERROR: missing operand at _@_
in expression "!_@_"
    (parsing expression "!")
    invoked from within
"if ![mi_run_to_main] then {
   fail "Cannot run to main, testcase aborted"
   return 0
}"
    (file "../../../archer/gdb/testsuite/gdb.ada/mi_catch_ex.exp" line 109)
    invoked from within
"source ../../../archer/gdb/testsuite/gdb.ada/mi_catch_ex.exp"
    ("uplevel" body line 1)
    invoked from within
"uplevel #0 source ../../../archer/gdb/testsuite/gdb.ada/mi_catch_ex.exp"
    invoked from within
"catch "uplevel #0 source $test_file_name""

Tom

Re: [patch] testsuite: Fix mi-solib.exp without debuginfos [Re: [3/3] RFC: fix PR mi/8444]

[Jan Kratochvil]

On Fri, 09 Dec 2011 22:00:01 +0100, Tom Tromey wrote:
> Unfortunately, a Tcl proc returns its last computed value if there is no
> explicit return.  So, this caused:

With the patch of mine it either returns the same value as before or it
returns value 0.  And I do not have the problem reproducible, where to
reproduce it?


Thanks,
Jan

Re: [patch] testsuite: Fix mi-solib.exp without debuginfos [Re: [3/3] RFC: fix PR mi/8444]

[Tom Tromey]

>>>>> "Jan" == Jan Kratochvil <jan.kratochvil@redhat.com> writes:

Jan> On Fri, 09 Dec 2011 22:00:01 +0100, Tom Tromey wrote:
>> Unfortunately, a Tcl proc returns its last computed value if there is no
>> explicit return.  So, this caused:

Jan> With the patch of mine it either returns the same value as before or it
Jan> returns value 0.  And I do not have the problem reproducible, where to
Jan> reproduce it?

I will look at it on Monday.
Sorry for not investigating more before sending the email.

Tom

Re: [3/3] RFC: fix PR mi/8444

[Eli Zaretskii]

> From: Tom Tromey <tromey@redhat.com>
> Date: Wed, 16 Nov 2011 13:04:29 -0700
> 
> This patch actually fixes the PR.
> 
> It at least needs a doc review.

The doc part is okay, although I wonder if we can do with less pxref's
to the same node in several successive lines.

Thanks.