diff options
Diffstat (limited to 'gold/object.cc')
| -rw-r--r-- | gold/object.cc | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/gold/object.cc b/gold/object.cc index 73bf370..b9d0028 100644 --- a/gold/object.cc +++ b/gold/object.cc @@ -1486,6 +1486,55 @@ Sized_relobj<size, big_endian>::do_add_symbols(Symbol_table* symtab, sd->symbol_names = NULL; } +// Find out if this object, that is a member of a lib group, should be included +// in the link. We check every symbol defined by this object. If the symbol +// table has a strong undefined reference to that symbol, we have to include +// the object. + +template<int size, bool big_endian> +Archive::Should_include +Sized_relobj<size, big_endian>::do_should_include_member(Symbol_table* symtab, + Read_symbols_data* sd, + std::string* why) +{ + char* tmpbuf = NULL; + size_t tmpbuflen = 0; + const char* sym_names = + reinterpret_cast<const char*>(sd->symbol_names->data()); + const unsigned char* syms = + sd->symbols->data() + sd->external_symbols_offset; + const int sym_size = elfcpp::Elf_sizes<size>::sym_size; + size_t symcount = ((sd->symbols_size - sd->external_symbols_offset) + / sym_size); + + const unsigned char* p = syms; + + for (size_t i = 0; i < symcount; ++i, p += sym_size) + { + elfcpp::Sym<size, big_endian> sym(p); + unsigned int st_shndx = sym.get_st_shndx(); + if (st_shndx == elfcpp::SHN_UNDEF) + continue; + + unsigned int st_name = sym.get_st_name(); + const char* name = sym_names + st_name; + Symbol* symbol; + Archive::Should_include t = Archive::should_include_member(symtab, name, + &symbol, why, + &tmpbuf, + &tmpbuflen); + if (t == Archive::SHOULD_INCLUDE_YES) + { + if (tmpbuf != NULL) + free(tmpbuf); + return t; + } + } + if (tmpbuf != NULL) + free(tmpbuf); + return Archive::SHOULD_INCLUDE_UNKNOWN; +} + // First pass over the local symbols. Here we add their names to // *POOL and *DYNPOOL, and we store the symbol value in // THIS->LOCAL_VALUES_. This function is always called from a |