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re PR bootstrap/63888 (bootstrap failed when configured with -with-build-config=bootstrap-asan --disable-werror)

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PR bootstrap/63888
	* asan/asan_globals.cc (RegisterGlobal): Disable detect_odr_violation
	support until it is rewritten upstream.

	* c-c++-common/asan/pr63888.c: New test.

From-SVN: r220919
This commit is contained in:
Jakub Jelinek 2015-02-23 22:01:57 +01:00 committed by Jakub Jelinek
parent 2c6a427ff9
commit 86ee20386e
4 changed files with 48 additions and 1 deletions
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5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2015-02-20 Jakub Jelinek <jakub@redhat.com>
PR bootstrap/63888
* c-c++-common/asan/pr63888.c: New test.
2015-02-23 Oleg Endo <olegendo@gcc.gnu.org>
PR target/65163

34
gcc/testsuite/c-c++-common/asan/pr63888.c Normal file
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@ -0,0 +1,34 @@
/* PR bootstrap/63888 */
/* { dg-do run } */
__attribute__((noinline, noclone)) int
foo (int x)
{
int v = 0;
switch (x)
{
case 11: v = 67; break;
case 12: v = 68; break;
case 13: v = 69; break;
}
return v;
}
__attribute__((noinline, noclone)) int
bar (int x)
{
int v = 0;
switch (x)
{
case 18: v = 67; break;
case 19: v = 68; break;
case 20: v = 69; break;
}
return v;
}
int
main ()
{
return foo (11) - 67 + bar (19) - 68;
}

6
libsanitizer/ChangeLog
View File

@ -1,3 +1,9 @@
2015-02-20 Jakub Jelinek <jakub@redhat.com>
PR bootstrap/63888
* asan/asan_globals.cc (RegisterGlobal): Disable detect_odr_violation
support until it is rewritten upstream.
2015-01-26 Matthias Klose <doko@ubuntu.com>
* configure.ac: Move AM_ENABLE_MULTILIB before AC_PROG_CC.

4
libsanitizer/asan/asan_globals.cc
View File

@ -148,7 +148,9 @@ static void RegisterGlobal(const Global *g) {
CHECK(AddrIsInMem(g->beg));
CHECK(AddrIsAlignedByGranularity(g->beg));
CHECK(AddrIsAlignedByGranularity(g->size_with_redzone));
if (flags()->detect_odr_violation) {
// This "ODR violation" detection is fundamentally incompatible with
// how GCC registers globals. Disable as useless until rewritten upstream.
if (0 && flags()->detect_odr_violation) {
// Try detecting ODR (One Definition Rule) violation, i.e. the situation
// where two globals with the same name are defined in different modules.
if (__asan_region_is_poisoned(g->beg, g->size_with_redzone)) {