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typedef struct {
bool modify;
} tdis_ret;
typedef struct tc {
uintptr_t pc;
int op_size;
uint32_t op;
uint32_t newop;
uint32_t newval[4];
uintptr_t pc_patch_start;
uintptr_t pc_patch_end;
bool got_bad;
} *tdis_ctx;
NOINLINE UNUSED
static tdis_ret P_data(struct tc *ctx, unsigned o0, unsigned o1, unsigned o2, unsigned o3, unsigned out_mask) {
__builtin_abort();
}
NOINLINE UNUSED
static tdis_ret P_pcrel(struct tc *ctx, uintptr_t dpc, unsigned reg, bool is_load) {
__builtin_abort();
}
NOINLINE UNUSED
static tdis_ret P_ret(struct tc *ctx) {
/* ret is okay if it's at the end of the patch */
if (ctx->pc + op_size < ctx->pc_patch_end)
ctx->got_bad = true;
printf("ret: %08x\n", ctx->op);
return (tdis_ret) {false};
}
NOINLINE UNUSED
static tdis_ret P_branch(struct tc *ctx, uintptr_t dpc) {
if (dpc >= ctx->pc_patch_start && dpc < ctx->pc_patch_end) {
/* don't support this for now */
ctx->got_bad = true;
}
return (tdis_ret) {false};
}
NOINLINE UNUSED
static tdis_ret P_unidentified(struct tc *ctx) {
return (tdis_ret) {false};
}
NOINLINE UNUSED
static tdis_ret P_bad(struct tc *ctx) {
ctx->got_bad = true;
return (tdis_ret) {false};
}
#define P(x) transform_dis_##x
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