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asan_mapping.h (kMidMemEnd): Increase to 0x4fffffffffULL.

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* asan/asan_mapping.h (kMidMemEnd): Increase to 0x4fffffffffULL.
	* asan/asan_rtl.cc (__asan_init): Increase kMidMemEnd to
	0x4fffffffffULL.

From-SVN: r196355
This commit is contained in:
Jakub Jelinek 2013-02-28 20:55:40 +01:00 • committed by Jakub Jelinek
parent ba96cdfb5f
commit 4c37612689
3 changed files with 13 additions and 7 deletions
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6
libsanitizer/ChangeLog
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@ -1,3 +1,9 @@
2013-02-28 Jakub Jelinek <jakub@redhat.com>
* asan/asan_mapping.h (kMidMemEnd): Increase to 0x4fffffffffULL.
* asan/asan_rtl.cc (__asan_init): Increase kMidMemEnd to
0x4fffffffffULL.
2013-02-22 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/56393

12
libsanitizer/asan/asan_mapping.h
View file

@ -30,13 +30,13 @@
// || `[0x000000040000, 0x01ffffffffff]` || ShadowGap ||
//
// Special case when something is already mapped between
// 0x003000000000 and 0x004000000000 (e.g. when prelink is installed):
// 0x003000000000 and 0x005000000000 (e.g. when prelink is installed):
// || `[0x10007fff8000, 0x7fffffffffff]` || HighMem ||
// || `[0x02008fff7000, 0x10007fff7fff]` || HighShadow ||
// || `[0x004000000000, 0x02008fff6fff]` || ShadowGap3 ||
// || `[0x003000000000, 0x003fffffffff]` || MidMem ||
// || `[0x00087fff8000, 0x002fffffffff]` || ShadowGap2 ||
// || `[0x00067fff8000, 0x00087fff7fff]` || MidShadow ||
// || `[0x005000000000, 0x02008fff6fff]` || ShadowGap3 ||
// || `[0x003000000000, 0x004fffffffff]` || MidMem ||
// || `[0x000a7fff8000, 0x002fffffffff]` || ShadowGap2 ||
// || `[0x00067fff8000, 0x000a7fff7fff]` || MidShadow ||
// || `[0x00008fff7000, 0x00067fff7fff]` || ShadowGap ||
// || `[0x00007fff8000, 0x00008fff6fff]` || LowShadow ||
// || `[0x000000000000, 0x00007fff7fff]` || LowMem ||
@ -129,7 +129,7 @@ extern uptr AsanMappingProfile[];
// difference between fixed and non-fixed mapping is below the noise level.
static uptr kHighMemEnd = 0x7fffffffffffULL;
static uptr kMidMemBeg = 0x3000000000ULL;
static uptr kMidMemEnd = 0x3fffffffffULL;
static uptr kMidMemEnd = 0x4fffffffffULL;
#else
SANITIZER_INTERFACE_ATTRIBUTE
extern uptr kHighMemEnd, kMidMemBeg, kMidMemEnd; // Initialized in __asan_init.

2
libsanitizer/asan/asan_rtl.cc
View file

@ -455,7 +455,7 @@ void __asan_init() {
#if ASAN_LINUX && defined(__x86_64__) && !ASAN_FIXED_MAPPING
if (!full_shadow_is_available) {
kMidMemBeg = kLowMemEnd < 0x3000000000ULL ? 0x3000000000ULL : 0;
kMidMemEnd = kLowMemEnd < 0x3000000000ULL ? 0x3fffffffffULL : 0;
kMidMemEnd = kLowMemEnd < 0x3000000000ULL ? 0x4fffffffffULL : 0;
}
#endif