bfn() command for setting breakpoint by function name

This commit is contained in:
2025-03-12 14:45:44 +01:00
parent 03ed7a8280
commit 3f57ff1bfe
3 changed files with 23 additions and 3 deletions

View File

@@ -9,7 +9,8 @@ var offset = "0x0000000000001169"; // dupa(), objdump -d ./test
// pf(); // pf();
// ppid(); // ppid();
// pplo(); // pplo();
baddr(offset); // baddr(offset);
bfn("dupa");
lsbrk(); lsbrk();
lsf(); lsf();

View File

@@ -9,7 +9,8 @@ var offset = "@DUPA_ADDR"; // dupa(), objdump -d ./test
// pf(); // pf();
// ppid(); // ppid();
// pplo(); // pplo();
baddr(offset); // baddr(offset);
bfn("dupa");
lsbrk(); lsbrk();
lsf(); lsf();

View File

@@ -338,7 +338,24 @@ void dbg_js_baddr(js_State *js)
Brk brk = { .pid = dbg->pid, .addr = dbg->program_load_offset + addr }; Brk brk = { .pid = dbg->pid, .addr = dbg->program_load_offset + addr };
brk_enable(&brk); brk_enable(&brk);
hashtable_set(&dbg->brks, addr_str2, &brk, sizeof(brk)); hashtable_set(&dbg->brks, addr_str2, &brk, sizeof(brk));
done: js_pushundefined(js);
}
void dbg_js_bfn(js_State *js)
{
Dbg *dbg = getdbg();
const char *fn_name = js_tostring(js, 1);
for (int i = 0; i < dbg->symbols.count; i++) {
Symbol *s = &dbg->symbols.items[i];
if (strcmp(fn_name, s->name) == 0) {
uintptr_t addr = s->addr;
char addr_str2[20];
snprintf(addr_str2, sizeof(addr_str2), "0x%"PRIxPTR, addr);
Brk brk = { .pid = dbg->pid, .addr = addr };
brk_enable(&brk);
hashtable_set(&dbg->brks, addr_str2, &brk, sizeof(brk));
}
}
js_pushundefined(js); js_pushundefined(js);
} }
@@ -540,6 +557,7 @@ void dbg_init_js(Dbg *dbg)
make_js_func(mwr, 2, "Write memory at address, ARGS=Address:hex string,Value:hex string"); make_js_func(mwr, 2, "Write memory at address, ARGS=Address:hex string,Value:hex string");
make_js_func(help, 0, "Print help information, ARGS=None"); make_js_func(help, 0, "Print help information, ARGS=None");
make_js_func(lsf, 0, "List functions in executable, ARGS=None"); make_js_func(lsf, 0, "List functions in executable, ARGS=None");
make_js_func(bfn, 1, "Set breakpoint at function, ARGS=Function name:string");
#undef make_js_func #undef make_js_func
} }