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Get instruction pointer correctly on Darwin.

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This commit is contained in:
castano 2007-05-29 10:53:03 +00:00
parent 95332efaa2
commit 37d42d300b
1 changed files with 34 additions and 37 deletions
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71
src/nvcore/Debug.cpp
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@ -164,51 +164,48 @@ namespace
static void * callerAddress(void * secret)
{
# if NV_OS_DARWIN && NV_CPU_PPC
return NULL;
ucontext_t * ucp = (ucontext_t *)secret;
return (void *) ucp->uc_mcontext->ss.srr0;
# elif NV_OS_DARWIN && NV_CPU_X86
return NULL;
ucontext_t * ucp = (ucontext_t *)secret;
return (void *) ucp->uc_mcontext->ss.eip;
# elif NV_CPU_X86_64
ucontext_t * uc = (ucontext_t *)secret;
return (void *)uc->uc_mcontext.gregs[REG_RIP];
// #define REG_RIP REG_INDEX(rip) // seems to be 16
ucontext_t * ucp = (ucontext_t *)secret;
return (void *)ucp->uc_mcontext.gregs[REG_RIP];
# elif NV_CPU_X86
ucontext_t * uc = (ucontext_t *)secret;
return (void *)uc->uc_mcontext.gregs[REG_EIP];
ucontext_t * ucp = (ucontext_t *)secret;
return (void *)ucp->uc_mcontext.gregs[REG_EIP]; // 14
# elif NV_CPU_PPC
ucontext_t* uc = (ucontext_t*) secret;
return (void*) uc->uc_mcontext.regs->nip;
ucontext_t * ucp = (ucontext_t *)secret;
return (void *) ucp->uc_mcontext.regs->nip;
#else
return NULL;
#endif
// From http://www.miriamruiz.es/weblog/?p=14
// #elif defined(__hppa__)
// ucontext_t* uc = (ucontext_t*) secret;
// pnt = (void*) uc->uc_mcontext.sc_iaoq[0] & ~0×3UL ;
// #elif defined(__sparc__)
// struct sigcontext* sc = (struct sigcontext*) secret;
// #if __WORDSIZE == 64
// pnt = (void*) scp->sigc_regs.tpc ;
// #else
// pnt = (void*) scp->si_regs.pc ;
// #endif
// How to obtain the instruction pointers in different platforms, from mlton's source code.
// http://mlton.org/
// OpenBSD && NetBSD
// ucp->sc_eip
// FreeBSD:
// ucp->uc_mcontext.mc_eip
// HPUX:
// ucp->uc_link
// Solaris:
// ucp->uc_mcontext.gregs[REG_PC]
// Linux hppa:
// uc->uc_mcontext.sc_iaoq[0] & ~0×3UL
// Linux sparc:
// ((struct sigcontext*) secret)->sigc_regs.tpc
// Linux sparc64:
// ((struct sigcontext*) secret)->si_regs.pc
// potentially correct for other archs:
// alpha: ucp->m_context.sc_pc
// arm: ucp->m_context.ctx.arm_pc
// ia64: ucp->m_context.sc_ip & ~0×3UL
// mips: ucp->m_context.sc_pc
// s390: ucp->m_context.sregs->regs.psw.addr
// #ifndef EIP
// #define EIP 14
// #endif
// #if (defined (__x86_64__))
// #ifndef REG_RIP
// #define REG_RIP REG_INDEX(rip) /* seems to be 16 */
// #endif
// #endif
// Linux alpha: ucp->m_context.sc_pc
// Linux arm: ucp->m_context.ctx.arm_pc
// Linux ia64: ucp->m_context.sc_ip & ~0×3UL
// Linux mips: ucp->m_context.sc_pc
// Linux s390: ucp->m_context.sregs->regs.psw.addr
}
static void nvSigHandler(int sig, siginfo_t *info, void *secret)
@ -471,7 +468,7 @@ void debug::enableSigHandler()
struct sigaction sa;
sa.sa_sigaction = nvSigHandler;
sigemptyset (&sa.sa_mask);
sa.sa_flags = SA_RESTART | SA_SIGINFO;
sa.sa_flags = SA_ONSTACK | SA_RESTART | SA_SIGINFO;
sigaction(SIGSEGV, &sa, &s_old_sigsegv);
sigaction(SIGTRAP, &sa, &s_old_sigtrap);