add public API

src/rvprof_symbols.c

@@ -326,4 +326,38 @@ const char* rvprof_symbols_lookup(void* addr){
     // fallback to addresses if we cannot resolve symbols
     snprintf(g_tmp_func_name, sizeof(g_tmp_func_name), "func_%p", addr);
     return g_tmp_func_name;
+}
+
+// public API
+rvprof_error_t rvprof_symbols_init(const char* program_path){
+    // option 1: provided path
+    if (program_path && parse_elf_symbols(program_path) == 0){
+        return RVPROF_SUCCESS;
+    }
+
+    // option 2: try /proc/self/exe (Linux only)
+    if (parse_elf_symbols("/proc/self/exe") == 0){
+        return RVPROF_SUCCESS;
+    }
+
+    // option 3: try typical paths
+    const char* fallbacks[] = {
+        "a.out",
+        "./a.out",
+        NULL
+    };
+
+    for (int i=0; fallbacks[i]; i++){
+        if (parse_elf_symbols(fallbacks[i]) == 0){
+            return RVPROF_SUCCESS;
+        }
+    }
+
+    // symbol loading failed, fall back to addresses
+    return RVPROF_ERROR_SYMBOLS;
+}
+
+void rvprof_symbols_cleanup(void){
+    symbol_array_cleanup(&g_rvprof.symbols);
+    g_rvprof.symbols_loaded = 0;
 }