#ifndef inhibit_libc
#ifdef __x86_64__
#include <signal.h>
#include <sys/ucontext.h>
#define MD_FALLBACK_FRAME_STATE_FOR x86_64_fallback_frame_state
static _Unwind_Reason_Code
x86_64_fallback_frame_state (struct _Unwind_Context *context,
_Unwind_FrameState *fs)
{
unsigned char *pc = context->ra;
struct sigcontext *sc;
long new_cfa;
if (*(unsigned char *)(pc+0) == 0x48
&& *(unsigned long *)(pc+1) == 0x050f0000000fc0c7)
{
struct ucontext *uc_ = context->cfa;
sc = (struct sigcontext *) (void *) &uc_->uc_mcontext;
}
else
return _URC_END_OF_STACK;
new_cfa = sc->rsp;
fs->cfa_how = CFA_REG_OFFSET;
fs->cfa_reg = 7;
fs->cfa_offset = new_cfa - (long) context->cfa;
fs->regs.reg[0].how = REG_SAVED_OFFSET;
fs->regs.reg[0].loc.offset = (long)&sc->rax - new_cfa;
fs->regs.reg[1].how = REG_SAVED_OFFSET;
fs->regs.reg[1].loc.offset = (long)&sc->rdx - new_cfa;
fs->regs.reg[2].how = REG_SAVED_OFFSET;
fs->regs.reg[2].loc.offset = (long)&sc->rcx - new_cfa;
fs->regs.reg[3].how = REG_SAVED_OFFSET;
fs->regs.reg[3].loc.offset = (long)&sc->rbx - new_cfa;
fs->regs.reg[4].how = REG_SAVED_OFFSET;
fs->regs.reg[4].loc.offset = (long)&sc->rsi - new_cfa;
fs->regs.reg[5].how = REG_SAVED_OFFSET;
fs->regs.reg[5].loc.offset = (long)&sc->rdi - new_cfa;
fs->regs.reg[6].how = REG_SAVED_OFFSET;
fs->regs.reg[6].loc.offset = (long)&sc->rbp - new_cfa;
fs->regs.reg[8].how = REG_SAVED_OFFSET;
fs->regs.reg[8].loc.offset = (long)&sc->r8 - new_cfa;
fs->regs.reg[9].how = REG_SAVED_OFFSET;
fs->regs.reg[9].loc.offset = (long)&sc->r9 - new_cfa;
fs->regs.reg[10].how = REG_SAVED_OFFSET;
fs->regs.reg[10].loc.offset = (long)&sc->r10 - new_cfa;
fs->regs.reg[11].how = REG_SAVED_OFFSET;
fs->regs.reg[11].loc.offset = (long)&sc->r11 - new_cfa;
fs->regs.reg[12].how = REG_SAVED_OFFSET;
fs->regs.reg[12].loc.offset = (long)&sc->r12 - new_cfa;
fs->regs.reg[13].how = REG_SAVED_OFFSET;
fs->regs.reg[13].loc.offset = (long)&sc->r13 - new_cfa;
fs->regs.reg[14].how = REG_SAVED_OFFSET;
fs->regs.reg[14].loc.offset = (long)&sc->r14 - new_cfa;
fs->regs.reg[15].how = REG_SAVED_OFFSET;
fs->regs.reg[15].loc.offset = (long)&sc->r15 - new_cfa;
fs->regs.reg[16].how = REG_SAVED_OFFSET;
fs->regs.reg[16].loc.offset = (long)&sc->rip - new_cfa;
fs->retaddr_column = 16;
fs->signal_frame = 1;
return _URC_NO_REASON;
}
#else
#if !(__GLIBC__ == 2 && __GLIBC_MINOR__ == 0)
#include <signal.h>
#include <sys/ucontext.h>
#define MD_FALLBACK_FRAME_STATE_FOR x86_fallback_frame_state
static _Unwind_Reason_Code
x86_fallback_frame_state (struct _Unwind_Context *context,
_Unwind_FrameState *fs)
{
unsigned char *pc = context->ra;
struct sigcontext *sc;
long new_cfa;
if (*(unsigned short *)(pc+0) == 0xb858
&& *(unsigned int *)(pc+2) == 119
&& *(unsigned short *)(pc+6) == 0x80cd)
sc = context->cfa + 4;
else if (*(unsigned char *)(pc+0) == 0xb8
&& *(unsigned int *)(pc+1) == 173
&& *(unsigned short *)(pc+5) == 0x80cd)
{
struct rt_sigframe {
int sig;
struct siginfo *pinfo;
void *puc;
struct siginfo info;
struct ucontext uc;
} *rt_ = context->cfa;
sc = (struct sigcontext *) (void *) &rt_->uc.uc_mcontext;
}
else
return _URC_END_OF_STACK;
new_cfa = sc->REG_NAME(esp);
fs->cfa_how = CFA_REG_OFFSET;
fs->cfa_reg = 4;
fs->cfa_offset = new_cfa - (long) context->cfa;
fs->regs.reg[0].how = REG_SAVED_OFFSET;
fs->regs.reg[0].loc.offset = (long)&sc->REG_NAME(eax) - new_cfa;
fs->regs.reg[3].how = REG_SAVED_OFFSET;
fs->regs.reg[3].loc.offset = (long)&sc->REG_NAME(ebx) - new_cfa;
fs->regs.reg[1].how = REG_SAVED_OFFSET;
fs->regs.reg[1].loc.offset = (long)&sc->REG_NAME(ecx) - new_cfa;
fs->regs.reg[2].how = REG_SAVED_OFFSET;
fs->regs.reg[2].loc.offset = (long)&sc->REG_NAME(edx) - new_cfa;
fs->regs.reg[6].how = REG_SAVED_OFFSET;
fs->regs.reg[6].loc.offset = (long)&sc->REG_NAME(esi) - new_cfa;
fs->regs.reg[7].how = REG_SAVED_OFFSET;
fs->regs.reg[7].loc.offset = (long)&sc->REG_NAME(edi) - new_cfa;
fs->regs.reg[5].how = REG_SAVED_OFFSET;
fs->regs.reg[5].loc.offset = (long)&sc->REG_NAME(ebp) - new_cfa;
fs->regs.reg[8].how = REG_SAVED_OFFSET;
fs->regs.reg[8].loc.offset = (long)&sc->REG_NAME(eip) - new_cfa;
fs->retaddr_column = 8;
fs->signal_frame = 1;
return _URC_NO_REASON;
}
#endif
#endif
#endif