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Code Issues Releases Activity

Account for possible unaligned access.

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This commit is contained in:
Konstantin Belousov 2010-04-21 15:18:02 +03:00
parent 74677edb23
commit 4454413242
2 changed files with 3 additions and 3 deletions
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2
src/x86/Ginit.c
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@ -88,7 +88,7 @@ validate_mem (unw_word_t addr)
{ {
int i, victim; int i, victim;
#ifdef HAVE_MINCORE #ifdef HAVE_MINCORE
char mvec[1]; char mvec[2]; /* Unaligned access may cross page boundary */
#endif #endif
addr = PAGE_START(addr); addr = PAGE_START(addr);

4
src/x86_64/Ginit.c
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@ -87,7 +87,7 @@ validate_mem (unw_word_t addr)
{ {
int i, victim; int i, victim;
#ifdef HAVE_MINCORE #ifdef HAVE_MINCORE
char mvec[1]; char mvec[2]; /* Unaligned access may cross page boundary */
#endif #endif
addr = PAGE_START(addr); addr = PAGE_START(addr);
@ -102,7 +102,7 @@ validate_mem (unw_word_t addr)
} }
#ifdef HAVE_MINCORE #ifdef HAVE_MINCORE
if (mincore ((void *) addr, 1, mvec) == -1) if (mincore ((void *) addr, sizeof (unw_word_t), mvec) == -1)
#else #else
if (msync ((void *) addr, 1, MS_ASYNC) == -1) if (msync ((void *) addr, 1, MS_ASYNC) == -1)
#endif #endif