#include <signal.h>
#include <sys/ucontext.h>
#include "insn-constants.h"
# if defined (__SH5__)
#define SH_DWARF_FRAME_GP0 0
#define SH_DWARF_FRAME_FP0 77
#define SH_DWARF_FRAME_BT0 68
#define SH_DWARF_FRAME_PR_MEDIA 18
#define SH_DWARF_FRAME_SR 65
#define SH_DWARF_FRAME_FPSCR 76
#else
#define SH_DWARF_FRAME_GP0 0
#define SH_DWARF_FRAME_FP0 25
#define SH_DWARF_FRAME_XD0 87
#define SH_DWARF_FRAME_PR 17
#define SH_DWARF_FRAME_GBR 19
#define SH_DWARF_FRAME_MACH 20
#define SH_DWARF_FRAME_MACL 21
#define SH_DWARF_FRAME_PC 16
#define SH_DWARF_FRAME_SR 22
#define SH_DWARF_FRAME_FPUL 23
#define SH_DWARF_FRAME_FPSCR 24
#endif
#if defined (__SH5__)
#define MD_FALLBACK_FRAME_STATE_FOR shmedia_fallback_frame_state
static _Unwind_Reason_Code
shmedia_fallback_frame_state (struct _Unwind_Context *context,
_Unwind_FrameState *fs)
{
unsigned char *pc = context->ra;
struct sigcontext *sc;
long new_cfa;
int i, r;
if ((*(unsigned long *) (pc-1) == 0xcc004090)
&& (*(unsigned long *) (pc+3) == 0xc801dc90)
&& (*(unsigned long *) (pc+7) == 0x6c91fff0)
&& (*(unsigned long *) (pc+11) == 0x6ff0fff0))
sc = context->cfa;
else if ((*(unsigned long *) (pc-1) == 0xcc004090)
&& (*(unsigned long *) (pc+3) == 0xc802b490)
&& (*(unsigned long *) (pc+7) == 0x6c91fff0)
&& (*(unsigned long *) (pc+11) == 0x6ff0fff0))
{
struct rt_sigframe {
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->sc_regs[15];
fs->cfa_how = CFA_REG_OFFSET;
fs->cfa_reg = 15;
fs->cfa_offset = new_cfa - (long) context->cfa;
for (i = 0; i < 63; i++)
{
if (i == 15)
continue;
fs->regs.reg[i].how = REG_SAVED_OFFSET;
fs->regs.reg[i].loc.offset
= (long)&(sc->sc_regs[i]) - new_cfa;
}
fs->regs.reg[SH_DWARF_FRAME_SR].how = REG_SAVED_OFFSET;
fs->regs.reg[SH_DWARF_FRAME_SR].loc.offset
= (long)&(sc->sc_sr) - new_cfa;
r = SH_DWARF_FRAME_BT0;
for (i = 0; i < 8; i++)
{
fs->regs.reg[r+i].how = REG_SAVED_OFFSET;
fs->regs.reg[r+i].loc.offset
= (long)&(sc->sc_tregs[i]) - new_cfa;
}
r = SH_DWARF_FRAME_FP0;
for (i = 0; i < 32; i++)
{
fs->regs.reg[r+i].how = REG_SAVED_OFFSET;
fs->regs.reg[r+i].loc.offset
= (long)&(sc->sc_fpregs[i]) - new_cfa;
}
fs->regs.reg[SH_DWARF_FRAME_FPSCR].how = REG_SAVED_OFFSET;
fs->regs.reg[SH_DWARF_FRAME_FPSCR].loc.offset
= (long)&(sc->sc_fpscr) - new_cfa;
fs->regs.reg[63].how = REG_SAVED_OFFSET;
fs->regs.reg[63].loc.offset
= (long)&(sc->sc_pc) - new_cfa;
fs->retaddr_column = 63;
fs->signal_frame = 1;
return _URC_NO_REASON;
}
#else
#define MD_FALLBACK_FRAME_STATE_FOR sh_fallback_frame_state
static _Unwind_Reason_Code
sh_fallback_frame_state (struct _Unwind_Context *context,
_Unwind_FrameState *fs)
{
unsigned char *pc = context->ra;
struct sigcontext *sc;
long new_cfa;
int i;
#if defined (__SH3E__) || defined (__SH4__)
int r;
#endif
if (((*(unsigned short *) (pc+0) == 0x9300)
&& (*(unsigned short *) (pc+2) == 0xc310)
&& (*(unsigned short *) (pc+4) == 0x0077))
|| (((*(unsigned short *) (pc+0) == 0x9305)
&& (*(unsigned short *) (pc+2) == 0xc310)
&& (*(unsigned short *) (pc+14) == 0x0077))))
sc = context->cfa;
else if (((*(unsigned short *) (pc+0) == 0x9300)
&& (*(unsigned short *) (pc+2) == 0xc310)
&& (*(unsigned short *) (pc+4) == 0x00ad))
|| (((*(unsigned short *) (pc+0) == 0x9305)
&& (*(unsigned short *) (pc+2) == 0xc310)
&& (*(unsigned short *) (pc+14) == 0x00ad))))
{
struct rt_sigframe {
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->sc_regs[15];
fs->cfa_how = CFA_REG_OFFSET;
fs->cfa_reg = 15;
fs->cfa_offset = new_cfa - (long) context->cfa;
for (i = 0; i < 15; i++)
{
fs->regs.reg[i].how = REG_SAVED_OFFSET;
fs->regs.reg[i].loc.offset
= (long)&(sc->sc_regs[i]) - new_cfa;
}
fs->regs.reg[SH_DWARF_FRAME_PR].how = REG_SAVED_OFFSET;
fs->regs.reg[SH_DWARF_FRAME_PR].loc.offset
= (long)&(sc->sc_pr) - new_cfa;
fs->regs.reg[SH_DWARF_FRAME_SR].how = REG_SAVED_OFFSET;
fs->regs.reg[SH_DWARF_FRAME_SR].loc.offset
= (long)&(sc->sc_sr) - new_cfa;
fs->regs.reg[SH_DWARF_FRAME_GBR].how = REG_SAVED_OFFSET;
fs->regs.reg[SH_DWARF_FRAME_GBR].loc.offset
= (long)&(sc->sc_gbr) - new_cfa;
fs->regs.reg[SH_DWARF_FRAME_MACH].how = REG_SAVED_OFFSET;
fs->regs.reg[SH_DWARF_FRAME_MACH].loc.offset
= (long)&(sc->sc_mach) - new_cfa;
fs->regs.reg[SH_DWARF_FRAME_MACL].how = REG_SAVED_OFFSET;
fs->regs.reg[SH_DWARF_FRAME_MACL].loc.offset
= (long)&(sc->sc_macl) - new_cfa;
#if defined (__SH3E__) || defined (__SH4__)
r = SH_DWARF_FRAME_FP0;
for (i = 0; i < 16; i++)
{
fs->regs.reg[r+i].how = REG_SAVED_OFFSET;
fs->regs.reg[r+i].loc.offset
= (long)&(sc->sc_fpregs[i]) - new_cfa;
}
r = SH_DWARF_FRAME_XD0;
for (i = 0; i < 8; i++)
{
fs->regs.reg[i].how = REG_SAVED_OFFSET;
fs->regs.reg[i].loc.offset
= (long)&(sc->sc_xfpregs[2*i]) - new_cfa;
}
fs->regs.reg[SH_DWARF_FRAME_FPUL].how = REG_SAVED_OFFSET;
fs->regs.reg[SH_DWARF_FRAME_FPUL].loc.offset
= (long)&(sc->sc_fpul) - new_cfa;
fs->regs.reg[SH_DWARF_FRAME_FPSCR].how = REG_SAVED_OFFSET;
fs->regs.reg[SH_DWARF_FRAME_FPSCR].loc.offset
= (long)&(sc->sc_fpscr) - new_cfa;
#endif
fs->regs.reg[SH_DWARF_FRAME_PC].how = REG_SAVED_OFFSET;
fs->regs.reg[SH_DWARF_FRAME_PC].loc.offset
= (long)&(sc->sc_pc) - new_cfa;
fs->retaddr_column = SH_DWARF_FRAME_PC;
fs->signal_frame = 1;
return _URC_NO_REASON;
}
#endif