feat(debug): print func name in si command

Author: EmbroiderSnow

sim/src/dbg.c

@@ -4,7 +4,9 @@
 #include <dbg.h>
 #include <decode.h>
 #include <disasm.h>
+#include "ftrace.h"
 
+extern SymbolTable *sym_table;
 extern LLVMDisasmContextRef disasm_ctx;
 
 static void cmd_help() {
@@ -43,6 +45,14 @@ static void cmd_step(int steps) {
         // Print the address and the disassembled instruction
         printf("\33[1;34m=> 0x%016lx\33[1;0m: \t%s\n", current_pc, asm_buf);
 
+        // Look up and print the function name if available
+        if (sym_table) {
+            const FuncSymbol *func_symbol = find_func(sym_table, current_pc);
+            if (func_symbol) {
+                printf("\33[1;34m0x%08lx\33[1;0m in \33[1;33m%s\33[1;0m ()\n", func_symbol->address, func_symbol->name);
+            }
+        }
+
         // Execute the instruction
         exec_once(); 
     }

sim/src/main.c

@@ -31,6 +31,7 @@ int main(int argc, char *argv[]){
 
     init_cpu();
     if (argc > 2 && strcmp(argv[2], "--debug") == 0) {
+        init_llvm_disassembler();
         debug_loop();
     }
     else if (argc > 2 && strcmp(argv[2], "--batch") == 0) {

sim/src/memory.c

@@ -100,8 +100,6 @@ void load_elf_symbols(const char *file_path) {
         exit(1);
     }
 
-    printf("Entry point: 0x%lx\n", ehdr.e_entry);
-
     Elf_Scn *scn = NULL;
     GElf_Shdr shdr;
     while ((scn = elf_nextscn(elf, scn)) != NULL) {