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authorRichard Biener <rguenther@suse.de>2020-11-26 10:07:06 +0100
committerRichard Biener <rguenther@suse.de>2020-11-26 10:07:06 +0100
commit5b3a8fad18324cd38c221bdb0ae2b690fc82ede0 (patch)
tree71fb1f24a37dd52af6396801eb6527a5565ccd2e /gcc
parentc0c7270cc4efd896fe99f8ad5409dbef089a407f (diff)
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testsuite/98002 - fix gcc.dg/strncmp-2.c
This makes sure not to free() memory we have mprotected to PROT_NONE by calling mprotect again with PROT_READ|PROT_WRITE. This avoids crashing the allocator when in debug mode. 2020-11-16 Richard Biener <rguenther@suse.de> PR testsuite/98002 * gcc.dg/strncmp-2.c: Call mprotect again before free.
Diffstat (limited to 'gcc')
-rw-r--r--gcc/testsuite/gcc.dg/strncmp-2.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/strncmp-2.c b/gcc/testsuite/gcc.dg/strncmp-2.c
index 6818b30..0d84f93 100644
--- a/gcc/testsuite/gcc.dg/strncmp-2.c
+++ b/gcc/testsuite/gcc.dg/strncmp-2.c
@@ -40,6 +40,7 @@ static void test_driver_strncmp (void (test_strncmp)(const char *, const char *,
e = lib_memcmp(buf1,p2,sz);
(*test_memcmp)(buf1,p2,e);
}
+ mprotect (buf2+pgsz,pgsz,PROT_READ|PROT_WRITE);
free(buf2);
}