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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
 17:30:12  up   4:36,  2 users,  load average: 0.38, 0.28, 0.25
This commit is contained in:
tracer-ysyx 2024-03-20 17:30:12 +08:00 committed by xinyangli
parent 8e03d125ce
commit c0160faa42
2 changed files with 9 additions and 15 deletions
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1
nemu/include/func.h
View file

@ -10,6 +10,7 @@ typedef struct {
} func_t;
func_t *func_table;
const char *get_func_name(vaddr_t addr);
#endif
#endif

23
nemu/src/utils/elf-parser.c → nemu/src/utils/ftrace.c
View file

@ -23,6 +23,7 @@ const char *get_func_name(vaddr_t addr) {
if(func_table[mid].start <= addr) l = mid + 1;
else r = mid - 1;
}
if(func_table[l].start + func_table[l].len < addr) return "???";
return l == 0 ? "???" : func_table[l - 1].name;
}
@ -78,24 +79,16 @@ void init_elf(const char *path) {
}
}
qsort(func_table, func_table_len, sizeof(func_t), cmp_func_t);
for(int i = 0; i < func_table_len; i++) {
func_t *f = &func_table[i];
printf("%s: 0x%x - 0x%x\n", f->name, f->start, f->start + f->len);
}
printf("%s\n", get_func_name(0x80000010));
printf("%s\n", get_func_name(0x80000012));
printf("%s\n", get_func_name(0x7fffffff));
printf("%s\n", get_func_name(0x80000000));
success = true;
failed:
for(int i = 0; i < func_table_len; i++) {
func_t *f = &func_table[i];
if(f->name) { free(f->name); }
}
free(func_table);
free(sym);
// for(int i = 0; i < func_table_len; i++) {
// func_t *f = &func_table[i];
// if(f->name) { free(f->name); }
// }
// free(func_table);
// free(sym);
failed_shstrtab:
free(shstrtab);
// free(shstrtab);
failed_nosym:
if(success) return;
else Error("Failed reading elf file");