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symtab never return null symbol

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Freya Murphy 2024-09-23 10:28:35 -04:00
parent f918f8fe1c
commit b6526332c6
Signed by: freya
GPG key ID: 744AB800E383AE52
2 changed files with 2 additions and 1 deletions
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mld/symtab.c
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@ -50,11 +50,12 @@ int symtab_push(struct symbol_table *symtab, const Elf32_Sym *sym)
int symtab_get(struct symbol_table *symtab, Elf32_Sym **res, const char *name, int symtab_get(struct symbol_table *symtab, Elf32_Sym **res, const char *name,
int32_t obj_idx) int32_t obj_idx)
{ {
for (size_t i = 0; i < symtab->len; i++) { for (size_t i = 1; i < symtab->len; i++) {
Elf32_Sym *sym = &symtab->syms[i]; Elf32_Sym *sym = &symtab->syms[i];
const char *symname = symtab->strtab->data + B32(sym->st_name); const char *symname = symtab->strtab->data + B32(sym->st_name);
if (strcmp(name, symname) != 0) if (strcmp(name, symname) != 0)
continue; continue;
// only allow retrevial of local variables from the // only allow retrevial of local variables from the
// same object // same object
if (sym->st_info >> 4 != STB_GLOBAL && symtab->map != NULL && if (sym->st_info >> 4 != STB_GLOBAL && symtab->map != NULL &&

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mld/vgcore.4024670
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