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PPC: Add support for GDB JIT API.

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Mike Pall 2011-10-24 16:20:04 +02:00
parent 3591609dad
commit 826fb377ec
1 changed files with 21 additions and 0 deletions
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21
src/lj_gdbjit.c
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@ -232,8 +232,10 @@ enum {
enum {
DW_CFA_nop = 0x0,
DW_CFA_offset_extended = 0x5,
DW_CFA_def_cfa = 0xc,
DW_CFA_def_cfa_offset = 0xe,
DW_CFA_offset_extended_sf = 0x11,
DW_CFA_advance_loc = 0x40,
DW_CFA_offset = 0x80
};
@ -292,6 +294,10 @@ enum {
#elif LJ_TARGET_ARM
DW_REG_SP = 13,
DW_REG_RA = 14,
#elif LJ_TARGET_PPC
DW_REG_SP = 1,
DW_REG_RA = 65,
DW_REG_CR = 70,
#else
#error "Unsupported target architecture"
#endif
@ -361,6 +367,8 @@ static const ELFheader elfhdr_template = {
.machine = 62,
#elif LJ_TARGET_ARM
.machine = 40,
#elif LJ_TARGET_PPC
.machine = 20,
#else
#error "Unsupported target architecture"
#endif
@ -523,7 +531,11 @@ static void LJ_FASTCALL gdbjit_ehframe(GDBJITctx *ctx)
DB(DW_REG_RA); /* Return address register. */
DB(1); DB(DW_EH_PE_textrel|DW_EH_PE_udata4); /* Augmentation data. */
DB(DW_CFA_def_cfa); DUV(DW_REG_SP); DUV(sizeof(uintptr_t));
#if LJ_TARGET_PPC
DB(DW_CFA_offset_extended_sf); DB(DW_REG_RA); DSV(-1);
#else
DB(DW_CFA_offset|DW_REG_RA); DUV(1);
#endif
DALIGNNOP(sizeof(uintptr_t));
)
@ -550,10 +562,19 @@ static void LJ_FASTCALL gdbjit_ehframe(GDBJITctx *ctx)
#elif LJ_TARGET_ARM
{
int i;
DB(DW_CFA_offset_extended); DB(DW_REG_CR); DUV(55);
for (i = 11; i >= 4; i--) { /* R4-R11. */
DB(DW_CFA_offset|i); DUV(2+(11-i));
}
}
#elif LJ_TARGET_PPC
{
int i;
for (i = 14; i <= 31; i++) {
DB(DW_CFA_offset|i); DUV(37+(31-i));
DB(DW_CFA_offset|32|i); DUV(2+2*(31-i));
}
}
#else
#error "Unsupported target architecture"
#endif