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> compile NEMU

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ysyx_22040000 李心杨
Linux calcite 6.6.19 #1-NixOS SMP PREEMPT_DYNAMIC Fri Mar  1 12:35:11 UTC 2024 x86_64 GNU/Linux
 18:33:40  up 1 day  8:09,  2 users,  load average: 1.15, 0.77, 0.60
This commit is contained in:
tracer-ysyx 2024-03-14 18:33:40 +08:00 committed by xinyangli
parent ea11bd2425
commit 5d8572b1db
1 changed files with 4 additions and 4 deletions
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8
nemu/src/utils/elf-parser.c
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@ -12,9 +12,9 @@ void init_elf(const char *path) {
FILE *elf_file = fopen(path, "rb");
Elf32_Ehdr header;
Elf32_Shdr section_header, *psh;
FAILED_GOTO(failed_nosym, fread(&header, sizeof(Elf32_Ehdr), 1, elf_file) > 0);
FAILED_GOTO(failed_nosym, fread(&header, sizeof(Elf32_Ehdr), 1, elf_file) <= 0);
FAILED_GOTO(failed_nosym, fseek(elf_file, header.e_shoff, SEEK_SET) != 0);
FAILED_GOTO(failed_nosym, fread(&section_header, header.e_shentsize, header.e_shnum, elf_file) > 0);
FAILED_GOTO(failed_nosym, fread(&section_header, header.e_shentsize, header.e_shnum, elf_file) <= 0);
Elf32_Shdr *symtab = NULL, *strtab = NULL;
for(int i = 0; i < header.e_shnum; i++) {
@ -30,13 +30,13 @@ void init_elf(const char *path) {
int sym_length = symtab->sh_entsize / sizeof(Elf32_Sym);
Elf32_Sym *sym = calloc(sym_length, sizeof(Elf32_Sym));
FAILED_GOTO(failed, fseek(elf_file, symtab->sh_offset, SEEK_SET) != 0);
FAILED_GOTO(failed, fread(&sym, sizeof(Elf32_Sym), sym_length, elf_file) > 0);
FAILED_GOTO(failed, fread(&sym, sizeof(Elf32_Sym), sym_length, elf_file) <= 0);
for(int j = 0; j < sym_length; j++) {
if(ELF32_ST_TYPE(sym[j].st_info) != STT_FUNC) continue;
// Only read function type symbol
char func[30] = "";
FAILED_GOTO(failed, fseek(elf_file, sym[j].st_name + strtab->sh_offset, SEEK_SET) != 0);
FAILED_GOTO(failed, fgets(func, 30, elf_file) > 0);
FAILED_GOTO(failed, fgets(func, 30, elf_file) <= 0);
puts(func);
}
return;