-#define NEW_MAP(prefix) \
- void* prefix ## _map = NULL; \
- void set_ ## prefix ## map(void *map) \
- { \
- printf("set_%s: 0x%08x\n", #prefix , (unsigned int) map); \
- prefix ## _map = map; \
- } \
- void *get_ ## prefix ## map() \
- { \
- printf("get_%s: 0x%08x\n", #prefix , (unsigned int) prefix ## _map); \
- return prefix ## _map; \
- }
-
-NEW_MAP(method)
-NEW_MAP(trap)
-NEW_MAP(class)
-NEW_MAP(virtual)
-
-
-void mainresult(unsigned int a)
-{
- printf("mainresult: 0x%08x\n", a);
-}
-
-void callertrap(int nSignal, siginfo_t *info, void *ctx)
-{
- mcontext_t *mctx = &((ucontext_t *) ctx)->uc_mcontext;
- unsigned int from = (unsigned int) mctx->gregs[REG_EIP] - 2;
- unsigned int *to_patch = (unsigned int *) (from + 1);
- printf("callertrap(mctx) by 0x%08x\n", from);
- if (*to_patch != 0x90ffff90) {
- printf("callertrap: something is wrong here. abort\n");
- exit(0);
- }
- unsigned int patchme = getMethodEntry(from, 0);
-
- unsigned char *insn = (unsigned char *) from;
- *insn = 0xe8; // call opcode
- printf(" to_patch: 0x%08x\n", (unsigned int) to_patch);
- printf("*to_patch: 0x%08x\n", *to_patch);
- *to_patch = patchme - (from + 5);
- printf("*to_patch: 0x%08x\n", *to_patch);
- mctx->gregs[REG_EIP] = (unsigned long) insn;
-}