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This commit is contained in:
Rui Ueyama 2021-03-01 16:24:37 +09:00
parent e1f3e59065
commit 439ace2597
1 changed files with 16 additions and 31 deletions
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47
main.cc
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@ -354,6 +354,19 @@ static void set_isec_offsets() {
});
}
static void export_dynamic() {
if (config.export_dynamic || config.shared) {
Timer t("export_dynamic");
tbb::parallel_for((i64)0, (i64)out::objs.size(), [&](i64 i) {
ObjectFile *file = out::objs[i];
for (Symbol *sym : std::span(file->symbols).subspan(file->first_global))
if (sym->file == file && sym->esym->st_visibility == STV_DEFAULT)
sym->flags |= NEEDS_DYNSYM;
});
}
}
static void scan_rels() {
Timer t("scan_rels");
@ -429,34 +442,6 @@ static void scan_rels() {
}
}
static void export_dynamic() {
Timer t("export_dynamic");
if (config.export_dynamic || config.shared) {
tbb::parallel_for((i64)0, (i64)out::objs.size(), [&](i64 i) {
ObjectFile *file = out::objs[i];
for (Symbol *sym : std::span(file->symbols).subspan(file->first_global))
if (sym->file == file && sym->esym->st_visibility == STV_DEFAULT)
sym->ver_idx = VER_NDX_GLOBAL;
});
}
for (std::string_view name : config.globals)
Symbol::intern(name)->ver_idx = VER_NDX_GLOBAL;
std::vector<std::vector<Symbol *>> vec(out::objs.size());
tbb::parallel_for((i64)0, (i64)out::objs.size(), [&](i64 i) {
ObjectFile *file = out::objs[i];
for (Symbol *sym : std::span(file->symbols).subspan(file->first_global))
if (sym->file == file && sym->ver_idx != VER_NDX_LOCAL)
vec[i].push_back(sym);
});
for (Symbol *sym : flatten(vec))
out::dynsym->add_symbol(sym);
}
static void fill_symbol_versions() {
Timer t("fill_symbol_versions");
@ -1003,13 +988,13 @@ int main(int argc, char **argv) {
out::chunks.insert(out::chunks.begin() + 2, out::interp);
out::chunks.push_back(out::shdr);
// Put symbols to .dynsym.
export_dynamic();
// Scan relocations to find symbols that need entries in .got, .plt,
// .got.plt, .dynsym, .dynstr, etc.
scan_rels();
// Put symbols to .dynsym.
export_dynamic();
// Sort .dynsym contents. Beyond this point, no symbol should be
// added to .dynsym.
out::dynsym->sort_symbols();