diff options
Diffstat (limited to 'gold/object.cc')
-rw-r--r-- | gold/object.cc | 86 |
1 files changed, 76 insertions, 10 deletions
diff --git a/gold/object.cc b/gold/object.cc index 8f1241ad879..5efb3cbd7fd 100644 --- a/gold/object.cc +++ b/gold/object.cc @@ -87,6 +87,33 @@ Sized_object<size, big_endian>::section_header(unsigned int shnum) return this->get_view(symtabshdroff, This::shdr_size); } +// Return the name of section SHNUM. + +template<int size, bool big_endian> +std::string +Sized_object<size, big_endian>::do_section_name(unsigned int shnum) +{ + Task_lock_obj<Object> tl(*this); + + // Read the section names. + typename This::Shdr shdrnames(this->section_header(this->shstrndx_)); + const unsigned char* pnamesu = this->get_view(shdrnames.get_sh_offset(), + shdrnames.get_sh_size()); + const char* pnames = reinterpret_cast<const char*>(pnamesu); + + typename This::Shdr shdr(this->section_header(shnum)); + if (shdr.get_sh_name() >= shdrnames.get_sh_size()) + { + fprintf(stderr, + _("%s: %s: bad section name offset for section %u: %lu\n"), + program_name, this->name().c_str(), shnum, + static_cast<unsigned long>(shdr.get_sh_name())); + gold_exit(false); + } + + return std::string(pnames + shdr.get_sh_name()); +} + // Set up an object file bsaed on the file header. This sets up the // target and reads the section information. @@ -182,7 +209,9 @@ Sized_object<size, big_endian>::do_read_symbols(Read_symbols_data* sd) // We only need the external symbols. const int sym_size = This::sym_size; - off_t locsize = symtabshdr.get_sh_info() * sym_size; + const unsigned int loccount = symtabshdr.get_sh_info(); + this->local_symbol_count_ = loccount; + off_t locsize = loccount * sym_size; off_t extoff = symtabshdr.get_sh_offset() + locsize; off_t extsize = symtabshdr.get_sh_size() - locsize; @@ -190,14 +219,15 @@ Sized_object<size, big_endian>::do_read_symbols(Read_symbols_data* sd) File_view* fvsymtab = this->get_lasting_view(extoff, extsize); // Read the section header for the symbol names. + unsigned int shnum = this->shnum(); unsigned int strtab_shnum = symtabshdr.get_sh_link(); - if (strtab_shnum == 0 || strtab_shnum >= this->shnum()) + if (strtab_shnum == 0 || strtab_shnum >= shnum) { fprintf(stderr, _("%s: %s: invalid symbol table name index: %u\n"), program_name, this->name().c_str(), strtab_shnum); gold_exit(false); } - typename This::Shdr strtabshdr(this->section_header(strtab_shnum)); + typename This::Shdr strtabshdr(pshdrs + strtab_shnum * This::shdr_size); if (strtabshdr.get_sh_type() != elfcpp::SHT_STRTAB) { fprintf(stderr, @@ -493,14 +523,13 @@ Sized_object<size, big_endian>::do_finalize_local_symbols(off_t off, assert(symtabshdr.get_sh_type() == elfcpp::SHT_SYMTAB); // Read the local symbols. - unsigned int loccount = symtabshdr.get_sh_info(); const int sym_size = This::sym_size; + const unsigned int loccount = this->local_symbol_count_; + assert(loccount == symtabshdr.get_sh_info()); off_t locsize = loccount * sym_size; const unsigned char* psyms = this->get_view(symtabshdr.get_sh_offset(), locsize); - this->local_symbol_count_ = loccount; - this->values_ = new typename elfcpp::Elf_types<size>::Elf_Addr[loccount]; // Read the section header for the symbol names. @@ -587,12 +616,12 @@ Sized_object<size, big_endian>::write_local_symbols(Output_file* of, // Read the symbol table section header. typename This::Shdr symtabshdr(this->section_header(this->symtab_shnum_)); assert(symtabshdr.get_sh_type() == elfcpp::SHT_SYMTAB); - unsigned int local_symbol_count = this->local_symbol_count_; - assert(local_symbol_count == symtabshdr.get_sh_info()); + const unsigned int loccount = this->local_symbol_count_; + assert(loccount == symtabshdr.get_sh_info()); // Read the local symbols. const int sym_size = This::sym_size; - off_t locsize = local_symbol_count * sym_size; + off_t locsize = loccount * sym_size; const unsigned char* psyms = this->get_view(symtabshdr.get_sh_offset(), locsize); @@ -615,7 +644,7 @@ Sized_object<size, big_endian>::write_local_symbols(Output_file* of, psyms += sym_size; unsigned char* ov = oview; - for (unsigned int i = 1; i < local_symbol_count; ++i, psyms += sym_size) + for (unsigned int i = 1; i < loccount; ++i, psyms += sym_size) { elfcpp::Sym<size, big_endian> isym(psyms); elfcpp::Sym_write<size, big_endian> osym(ov); @@ -665,6 +694,31 @@ Input_objects::add_object(Object* obj) this->any_dynamic_ = true; } +// Relocate_info methods. + +// Return a string describing the location of a relocation. This is +// only used in error messages. + +template<int size, bool big_endian> +std::string +Relocate_info<size, big_endian>::location(size_t relnum, off_t) const +{ + std::string ret(this->object->name()); + ret += ": reloc "; + char buf[100]; + snprintf(buf, sizeof buf, "%zu", relnum); + ret += buf; + ret += " in reloc section "; + snprintf(buf, sizeof buf, "%u", this->reloc_shndx); + ret += buf; + ret += " (" + this->object->section_name(this->reloc_shndx); + ret += ") for section "; + snprintf(buf, sizeof buf, "%u", this->data_shndx); + ret += buf; + ret += " (" + this->object->section_name(this->data_shndx) + ")"; + return ret; +} + } // End namespace gold. namespace @@ -830,4 +884,16 @@ class Sized_object<64, false>; template class Sized_object<64, true>; +template +struct Relocate_info<32, false>; + +template +struct Relocate_info<32, true>; + +template +struct Relocate_info<64, false>; + +template +struct Relocate_info<64, true>; + } // End namespace gold. |