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Dispose modules early and only create codegen when the plugin is being

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used by the linker and not by nm or ar.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126089 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2011-02-20 18:28:29 +00:00
parent eff5e69c82
commit 8e04fc3adf
1 changed files with 19 additions and 5 deletions
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24
tools/gold/gold-plugin.cpp
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@ -64,7 +64,7 @@ namespace {
std::string output_name = "";
std::list<claimed_file> Modules;
std::vector<sys::Path> Cleanup;
lto_code_gen_t code_gen;
lto_code_gen_t code_gen = NULL;
}
namespace options {
@ -196,6 +196,8 @@ ld_plugin_status onload(ld_plugin_tv *tv) {
if ((*callback)(all_symbols_read_hook) != LDPS_OK)
return LDPS_ERR;
code_gen = lto_codegen_create();
} break;
case LDPT_REGISTER_CLEANUP_HOOK: {
ld_plugin_register_cleanup callback;
@ -236,8 +238,6 @@ ld_plugin_status onload(ld_plugin_tv *tv) {
return LDPS_ERR;
}
code_gen = lto_codegen_create();
return LDPS_OK;
}
@ -322,6 +322,7 @@ static ld_plugin_status claim_file_hook(const ld_plugin_input_file *file,
cf.syms.push_back(ld_plugin_symbol());
ld_plugin_symbol &sym = cf.syms.back();
sym.name = const_cast<char *>(lto_module_get_symbol_name(M, i));
sym.name = strdup(sym.name);
sym.version = NULL;
int scope = attrs & LTO_SYMBOL_SCOPE_MASK;
@ -379,7 +380,11 @@ static ld_plugin_status claim_file_hook(const ld_plugin_input_file *file,
}
}
lto_codegen_add_module(code_gen, M);
if (code_gen)
lto_codegen_add_module(code_gen, M);
lto_module_dispose(M);
return LDPS_OK;
}
@ -389,6 +394,8 @@ static ld_plugin_status claim_file_hook(const ld_plugin_input_file *file,
/// codegen.
static ld_plugin_status all_symbols_read_hook(void) {
std::ofstream api_file;
assert(code_gen);
if (options::generate_api_file) {
api_file.open("apifile.txt", std::ofstream::out | std::ofstream::trunc);
if (!api_file.is_open()) {
@ -469,10 +476,10 @@ static ld_plugin_status all_symbols_read_hook(void) {
std::string ErrMsg;
const char *objPath;
sys::Path uniqueObjPath("/tmp/llvmgold.o");
if (!options::obj_path.empty()) {
objPath = options::obj_path.c_str();
} else {
sys::Path uniqueObjPath("/tmp/llvmgold.o");
if (uniqueObjPath.createTemporaryFileOnDisk(true, &ErrMsg)) {
(*message)(LDPL_ERROR, "%s", ErrMsg.c_str());
return LDPS_ERR;
@ -497,6 +504,13 @@ static ld_plugin_status all_symbols_read_hook(void) {
objFile.keep();
lto_codegen_dispose(code_gen);
for (std::list<claimed_file>::iterator I = Modules.begin(),
E = Modules.end(); I != E; ++I) {
for (unsigned i = 0; i != I->syms.size(); ++i) {
ld_plugin_symbol &sym = I->syms[i];
free(sym.name);
}
}
if ((*add_input_file)(objPath) != LDPS_OK) {
(*message)(LDPL_ERROR, "Unable to add .o file to the link.");