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Don't try to load string table if strtab_link is SHN_UNDEF or the symbol table is empty

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Jeremy Rifkin 2025-01-28 22:21:43 -06:00
parent 18046688f6
commit 73ee7aa3a1
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GPG Key ID: 19AA8270105E8EB4
1 changed files with 5 additions and 1 deletions
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6
src/binary/elf.cpp
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@ -91,7 +91,11 @@ namespace detail {
std::string elf::lookup_symbol(frame_ptr pc) { std::string elf::lookup_symbol(frame_ptr pc) {
// TODO: Also search the SHT_DYNSYM at some point, maybe // TODO: Also search the SHT_DYNSYM at some point, maybe
auto symtab_ = get_symtab(); auto symtab_ = get_symtab();
if(symtab_.is_error()) { if(
symtab_.is_error()
|| symtab_.unwrap_value().strtab_link == SHN_UNDEF
|| symtab_.unwrap_value().entries.empty()
) {
return ""; return "";
} }
auto& symtab = symtab_.unwrap_value(); auto& symtab = symtab_.unwrap_value();