Removing breakpoints by function name with rmbfn()

debugus.c

@@ -354,11 +354,39 @@ void dbg_js_bfn(js_State *js)
             Brk brk = { .pid = dbg->pid, .addr = addr };
             brk_enable(&brk);
             hashtable_set(&dbg->brks, addr_str2, &brk, sizeof(brk));
+            break;
         }
     }
     js_pushundefined(js);
 }
 
+void dbg_js_rmbfn(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 = (Brk *)hashtable_get(&dbg->brks, addr_str2);
+            if (brk == NULL) {
+                LOG_ERR("No breakpoint at function: %s\n", fn_name);
+                goto done;
+            }
+            brk_disable(brk);
+            hashtable_delete(&dbg->brks, addr_str2);
+            break;
+        }
+    }
+
+done:
+    js_pushundefined(js);
+}
+
 void dbg_js_rmbaddr(js_State *js)
 {
     Dbg *dbg = getdbg();
@@ -558,6 +586,7 @@ void dbg_init_js(Dbg *dbg)
     make_js_func(help, 0, "Print help information, 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");
+    make_js_func(rmbfn, 1, "Remove breakpoint at function, ARGS=Function name:string");
 
     #undef make_js_func
 }