diff --git a/nemu/src/monitor/elf.c b/nemu/src/monitor/elf.c
index e8502fb..4a5067a 100644
--- a/nemu/src/monitor/elf.c
+++ b/nemu/src/monitor/elf.c
@@ -77,13 +77,13 @@ void init_elf(const char* elf_file) {
   // get symbol table and string table
   Elf_Sym *psymt = NULL;
   char* pstrt = NULL;
-  size_t symt_sz = 0, strt_sz = 0;
+  size_t symt_len = 0, strt_sz = 0;
   for (int i = 0; i < ehdr.e_shnum; i++) {
     if (shdr[i].sh_type == SHT_SYMTAB) {
       fseek(fp, shdr[i].sh_offset, SEEK_SET);
       assert(shdr[i].sh_size % sizeof(Elf_Sym) == 0);
-      symt_sz = shdr[i].sh_entsize;
-      Elf_Sym sym[symt_sz];
+      symt_len = shdr[i].sh_entsize;
+      Elf_Sym sym[symt_len];
       ret = fread(sym, shdr[i].sh_size, 1, fp);
       assert(ret == 1);
       psymt = sym;
@@ -99,7 +99,8 @@ void init_elf(const char* elf_file) {
 
   // filling ftrace
   assert(pstrt != NULL && pstrt != NULL);
-  for (int i = 0; i < symt_sz; i ++) {
+  for (int i = 0; i < symt_len; i ++) {
+    Log("---LOG: %3d: %08x %5d %x", i, psymt[i].st_value, psymt[i].st_size, psymt[i].st_name);
     if (ELF_ST_TYPE(psymt[i].st_info) == STT_FUNC) {
       // Warning due to elf_ftrace is global variable so you don't need to set '\0' in the end
       // strncpy(elf_ftrace[elf_ftrace_size].fname, pstrt + psymt[i].st_name,
@@ -108,7 +109,6 @@ void init_elf(const char* elf_file) {
       elf_ftrace[elf_ftrace_size].size = psymt[i].st_size;
       elf_ftrace[elf_ftrace_size].end = psymt[i].st_value + psymt[i].st_size - 1;
       elf_ftrace_size ++;
-      Log("---LOG: %d: %08x %d", i, psymt[i].st_value, psymt[i].st_name);
     }
   }