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Backport r250561

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2017-07-27  Martin Liska  <mliska@suse.cz>

	Backport from mainline
	2017-07-26  Martin Liska  <mliska@suse.cz>

	PR sanitize/81186
	* function.c (expand_function_start): Make expansion of
	nonlocal_goto_save_area after parm_birth_insn.
2017-07-27  Martin Liska  <mliska@suse.cz>

	Backport from mainline
	2017-07-26  Martin Liska  <mliska@suse.cz>

	PR sanitize/81186
	* gcc.dg/asan/pr81186.c: New test.

From-SVN: r250605
This commit is contained in:
Martin Liska 2017-07-27 09:32:53 +02:00 committed by Martin Liska
parent da7b783895
commit 4dad7c1d13
4 changed files with 45 additions and 10 deletions
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9
gcc/ChangeLog
View File

@ -1,3 +1,12 @@
2017-07-27 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-07-26 Martin Liska <mliska@suse.cz>
PR sanitize/81186
* function.c (expand_function_start): Make expansion of
nonlocal_goto_save_area after parm_birth_insn.
2017-07-27 Martin Liska <mliska@suse.cz>
Backport from mainline

20
gcc/function.c
View File

@ -5263,6 +5263,16 @@ expand_function_start (tree subr)
}
}
/* The following was moved from init_function_start.
The move is supposed to make sdb output more accurate. */
/* Indicate the beginning of the function body,
as opposed to parm setup. */
emit_note (NOTE_INSN_FUNCTION_BEG);
gcc_assert (NOTE_P (get_last_insn ()));
parm_birth_insn = get_last_insn ();
/* If the function receives a non-local goto, then store the
bits we need to restore the frame pointer. */
if (cfun->nonlocal_goto_save_area)
@ -5284,16 +5294,6 @@ expand_function_start (tree subr)
update_nonlocal_goto_save_area ();
}
/* The following was moved from init_function_start.
The move is supposed to make sdb output more accurate. */
/* Indicate the beginning of the function body,
as opposed to parm setup. */
emit_note (NOTE_INSN_FUNCTION_BEG);
gcc_assert (NOTE_P (get_last_insn ()));
parm_birth_insn = get_last_insn ();
if (crtl->profile)
{
#ifdef PROFILE_HOOK

8
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,11 @@
2017-07-27 Martin Liska <mliska@suse.cz>
Backport from mainline
2017-07-26 Martin Liska <mliska@suse.cz>
PR sanitize/81186
* gcc.dg/asan/pr81186.c: New test.
2017-07-27 Martin Liska <mliska@suse.cz>
Backport from mainline

18
gcc/testsuite/gcc.dg/asan/pr81186.c Normal file
View File

@ -0,0 +1,18 @@
/* PR sanitizer/81186 */
/* { dg-do run } */
int
main ()
{
__label__ l;
void f ()
{
int a[123];
goto l;
}
f ();
l:
return 0;
}