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fix sparc: use mcontext to fetch pc and sp

This commit is contained in:
christos 2021-10-28 11:22:41 +00:00
parent 50eb61f53f
commit 617abbe007
1 changed files with 6 additions and 3 deletions
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9
external/gpl3/gcc/dist/libsanitizer/sanitizer_common/sanitizer_linux.cc vendored
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@ -1930,12 +1930,12 @@ SignalContext::WriteFlag SignalContext::GetWriteFlag() const {
// From OpenSolaris $SRC/uts/sun4/os/trap.c (get_accesstype).
# if SANITIZER_SOLARIS
uptr pc = ucontext->uc_mcontext.gregs[REG_PC];
# elif SANITIZER_NETBSD
uptr pc = ucontext->uc_mcontext.__gregs[_REG_PC];
# else
// Historical BSDism here.
struct sigcontext *scontext = (struct sigcontext *)ucontext;
# if SANITIZER_NETBSD
uptr pc = scontext->sc_pc;
# elif defined(__arch64__)
# if defined(__arch64__)
uptr pc = scontext->sigc_regs.tpc;
# else
uptr pc = scontext->si_regs.pc;
@ -2040,6 +2040,9 @@ static void GetPcSpBp(void *context, uptr *pc, uptr *sp, uptr *bp) {
ucontext_t *ucontext = (ucontext_t*)context;
*pc = ucontext->uc_mcontext.gregs[REG_PC];
*sp = ucontext->uc_mcontext.gregs[REG_O6] + STACK_BIAS;
# elif SANITIZER_NETBSD
*pc = ucontext->uc_mcontext.__gregs[REG_PC];
*sp = ucontext->uc_mcontext.__gregs[REG_O6] + STACK_BIAS;
# else
// Historical BSDism here.
struct sigcontext *scontext = (struct sigcontext *)context;