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Add a debug obj-path option to make it easy to keep the .o produce by LTO.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125663 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2011-02-16 11:19:44 +00:00
parent eb1dc98aa7
commit 5a287d7a03
1 changed files with 24 additions and 14 deletions
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38
tools/gold/gold-plugin.cpp
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@ -72,6 +72,7 @@ namespace options {
static bool generate_api_file = false;
static generate_bc generate_bc_file = BC_NO;
static std::string bc_path;
static std::string obj_path;
static std::string as_path;
static std::vector<std::string> as_args;
static std::vector<std::string> pass_through;
@ -112,6 +113,8 @@ namespace options {
pass_through.push_back(item.str());
} else if (opt.startswith("mtriple=")) {
triple = opt.substr(strlen("mtriple="));
} else if (opt.startswith("obj-path=")) {
obj_path = opt.substr(strlen("obj-path="));
} else if (opt == "emit-llvm") {
generate_bc_file = BC_ONLY;
} else if (opt == "also-emit-llvm") {
@ -471,23 +474,29 @@ static ld_plugin_status all_symbols_read_hook(void) {
std::string ErrMsg;
sys::Path uniqueObjPath("/tmp/llvmgold.o");
if (uniqueObjPath.createTemporaryFileOnDisk(true, &ErrMsg)) {
(*message)(LDPL_ERROR, "%s", ErrMsg.c_str());
return LDPS_ERR;
}
tool_output_file objFile(uniqueObjPath.c_str(), ErrMsg,
raw_fd_ostream::F_Binary);
if (!ErrMsg.empty()) {
(*message)(LDPL_ERROR, "%s", ErrMsg.c_str());
return LDPS_ERR;
const char *objPath;
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;
}
objPath = uniqueObjPath.c_str();
}
tool_output_file objFile(objPath, ErrMsg,
raw_fd_ostream::F_Binary);
if (!ErrMsg.empty()) {
(*message)(LDPL_ERROR, "%s", ErrMsg.c_str());
return LDPS_ERR;
}
objFile.os().write(buffer, bufsize);
objFile.os().close();
if (objFile.os().has_error()) {
(*message)(LDPL_ERROR, "Error writing output file '%s'",
uniqueObjPath.c_str());
objPath);
objFile.os().clear_error();
return LDPS_ERR;
}
@ -495,9 +504,9 @@ static ld_plugin_status all_symbols_read_hook(void) {
lto_codegen_dispose(cg);
if ((*add_input_file)(uniqueObjPath.c_str()) != LDPS_OK) {
if ((*add_input_file)(objPath) != LDPS_OK) {
(*message)(LDPL_ERROR, "Unable to add .o file to the link.");
(*message)(LDPL_ERROR, "File left behind in: %s", uniqueObjPath.c_str());
(*message)(LDPL_ERROR, "File left behind in: %s", objPath);
return LDPS_ERR;
}
@ -525,7 +534,8 @@ static ld_plugin_status all_symbols_read_hook(void) {
}
}
Cleanup.push_back(uniqueObjPath);
if (options::obj_path.empty())
Cleanup.push_back(sys::Path(objPath));
return LDPS_OK;
}