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asan: sync with gcc r193553 

llvm-svn: 168151
This commit is contained in:
Dmitry Vyukov 2012-11-16 11:26:05 +00:00
parent 4ac66c49da
commit 4ee90c231a
1 changed files with 14 additions and 0 deletions
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14
compiler-rt/lib/asan/asan_linux.cc
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@ -68,6 +68,20 @@ void GetPcSpBp(void *context, uptr *pc, uptr *sp, uptr *bp) {
*pc = ucontext->uc_mcontext.gregs[REG_EIP];
*bp = ucontext->uc_mcontext.gregs[REG_EBP];
*sp = ucontext->uc_mcontext.gregs[REG_ESP];
# elif defined(__sparc__)
ucontext_t *ucontext = (ucontext_t*)context;
uptr *stk_ptr;
# if defined (__arch64__)
*pc = ucontext->uc_mcontext.mc_gregs[MC_PC];
*sp = ucontext->uc_mcontext.mc_gregs[MC_O6];
stk_ptr = (uptr *) (*sp + 2047);
*bp = stk_ptr[15];
# else
*pc = ucontext->uc_mcontext.gregs[REG_PC];
*sp = ucontext->uc_mcontext.gregs[REG_O6];
stk_ptr = (uptr *) *sp;
*bp = stk_ptr[15];
# endif
#else
# error "Unsupported arch"
#endif