//
//===----------------------------------------------------------------------===//
+#include "llvm/Config/config.h"
#include "plugin-api.h"
#include "llvm-c/lto.h"
#include "llvm/Support/raw_ostream.h"
+#include "llvm/System/Errno.h"
#include "llvm/System/Path.h"
+#include "llvm/System/Program.h"
#include <cerrno>
#include <cstdlib>
int api_version = 0;
int gold_version = 0;
- bool generate_api_file = false;
- const char *gcc_path = NULL;
- const char *as_path = NULL;
-
struct claimed_file {
lto_module_t M;
void *handle;
std::vector<sys::Path> Cleanup;
}
-ld_plugin_status claim_file_hook(const ld_plugin_input_file *file,
- int *claimed);
-ld_plugin_status all_symbols_read_hook(void);
-ld_plugin_status cleanup_hook(void);
+namespace options {
+ static bool generate_api_file = false;
+ static std::string bc_path;
+ static const char *as_path = NULL;
+ // Additional options to pass into the code generator.
+ // Note: This array will contain all plugin options which are not claimed
+ // as plugin exclusive to pass to the code generator.
+ // For example, "generate-api-file" and "as"options are for the plugin
+ // use only and will not be passed.
+ static std::vector<std::string> extra;
+
+ static void process_plugin_option(const char* opt)
+ {
+ if (opt == NULL)
+ return;
+
+ if (strcmp("generate-api-file", opt) == 0) {
+ generate_api_file = true;
+ } else if (strncmp("as=", opt, 3) == 0) {
+ if (as_path) {
+ (*message)(LDPL_WARNING, "Path to as specified twice. "
+ "Discarding %s", opt);
+ } else {
+ as_path = strdup(opt + 3);
+ }
+ } else if(llvm::StringRef(opt).startswith("also-emit-llvm=")) {
+ const char *path = opt + strlen("also-emit-llvm=");
+ if (bc_path != "") {
+ (*message)(LDPL_WARNING, "Path to the output IL file specified twice. "
+ "Discarding %s", opt);
+ } else {
+ bc_path = path;
+ }
+ } else {
+ // Save this option to pass to the code generator.
+ extra.push_back(std::string(opt));
+ }
+ }
+}
+
+static ld_plugin_status claim_file_hook(const ld_plugin_input_file *file,
+ int *claimed);
+static ld_plugin_status all_symbols_read_hook(void);
+static ld_plugin_status cleanup_hook(void);
extern "C" ld_plugin_status onload(ld_plugin_tv *tv);
ld_plugin_status onload(ld_plugin_tv *tv) {
//output_type = LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC;
break;
case LDPT_OPTION:
- if (strcmp("generate-api-file", tv->tv_u.tv_string) == 0) {
- generate_api_file = true;
- } else if (strncmp("gcc=", tv->tv_u.tv_string, 4) == 0) {
- if (gcc_path) {
- (*message)(LDPL_WARNING, "Path to gcc specified twice. "
- "Discarding %s", tv->tv_u.tv_string);
- } else {
- gcc_path = strdup(tv->tv_u.tv_string + 4);
- }
- } else if (strncmp("as=", tv->tv_u.tv_string, 3) == 0) {
- if (as_path) {
- (*message)(LDPL_WARNING, "Path to as specified twice. "
- "Discarding %s", tv->tv_u.tv_string);
- } else {
- as_path = strdup(tv->tv_u.tv_string + 3);
- }
- } else {
- (*message)(LDPL_WARNING, "Ignoring flag %s", tv->tv_u.tv_string);
- }
+ options::process_plugin_option(tv->tv_u.tv_string);
break;
case LDPT_REGISTER_CLAIM_FILE_HOOK: {
ld_plugin_register_claim_file callback;
/// claim_file_hook - called by gold to see whether this file is one that
/// our plugin can handle. We'll try to open it and register all the symbols
/// with add_symbol if possible.
-ld_plugin_status claim_file_hook(const ld_plugin_input_file *file,
- int *claimed) {
+static ld_plugin_status claim_file_hook(const ld_plugin_input_file *file,
+ int *claimed) {
void *buf = NULL;
if (file->offset) {
// Gold has found what might be IR part-way inside of a file, such as
(*message)(LDPL_ERROR,
"Failed to seek to archive member of %s at offset %d: %s\n",
file->name,
- file->offset, strerror(errno));
+ file->offset, sys::StrError(errno).c_str());
return LDPS_ERR;
}
buf = malloc(file->filesize);
"Failed to read archive member of %s at offset %d: %s\n",
file->name,
file->offset,
- strerror(errno));
+ sys::StrError(errno).c_str());
free(buf);
return LDPS_ERR;
}
/// At this point, we use get_symbols to see if any of our definitions have
/// been overridden by a native object file. Then, perform optimization and
/// codegen.
-ld_plugin_status all_symbols_read_hook(void) {
+static ld_plugin_status all_symbols_read_hook(void) {
lto_code_gen_t cg = lto_codegen_create();
for (std::list<claimed_file>::iterator I = Modules.begin(),
lto_codegen_add_module(cg, I->M);
std::ofstream api_file;
- if (generate_api_file) {
+ if (options::generate_api_file) {
api_file.open("apifile.txt", std::ofstream::out | std::ofstream::trunc);
if (!api_file.is_open()) {
(*message)(LDPL_FATAL, "Unable to open apifile.txt for writing.");
E = Modules.end(); I != E; ++I) {
(*get_symbols)(I->handle, I->syms.size(), &I->syms[0]);
for (unsigned i = 0, e = I->syms.size(); i != e; i++) {
- if (I->syms[i].resolution == LDPR_PREVAILING_DEF ||
- (I->syms[i].def == LDPK_COMMON &&
- I->syms[i].resolution == LDPR_RESOLVED_IR)) {
+ if (I->syms[i].resolution == LDPR_PREVAILING_DEF) {
lto_codegen_add_must_preserve_symbol(cg, I->syms[i].name);
anySymbolsPreserved = true;
- if (generate_api_file)
+ if (options::generate_api_file)
api_file << I->syms[i].name << "\n";
}
}
}
- if (generate_api_file)
+ if (options::generate_api_file)
api_file.close();
if (!anySymbolsPreserved) {
lto_codegen_set_pic_model(cg, output_type);
lto_codegen_set_debug_model(cg, LTO_DEBUG_MODEL_DWARF);
- if (gcc_path)
- lto_codegen_set_gcc_path(cg, gcc_path);
- if (as_path)
- lto_codegen_set_assembler_path(cg, as_path);
+ if (options::as_path) {
+ sys::Path p = sys::Program::FindProgramByName(options::as_path);
+ lto_codegen_set_assembler_path(cg, p.c_str());
+ }
+ // Pass through extra options to the code generator.
+ if (!options::extra.empty()) {
+ for (std::vector<std::string>::iterator it = options::extra.begin();
+ it != options::extra.end(); ++it) {
+ lto_codegen_debug_options(cg, (*it).c_str());
+ }
+ }
+ if (options::bc_path != "") {
+ bool err = lto_codegen_write_merged_modules(cg, options::bc_path.c_str());
+ if (err)
+ (*message)(LDPL_FATAL, "Failed to write the output file.");
+ }
size_t bufsize = 0;
const char *buffer = static_cast<const char *>(lto_codegen_compile(cg,
&bufsize));
(*message)(LDPL_ERROR, "%s", ErrMsg.c_str());
return LDPS_ERR;
}
- raw_fd_ostream *objFile = new raw_fd_ostream(uniqueObjPath.c_str(), true,
- ErrMsg);
+ raw_fd_ostream *objFile =
+ new raw_fd_ostream(uniqueObjPath.c_str(), ErrMsg,
+ raw_fd_ostream::F_Binary);
if (!ErrMsg.empty()) {
delete objFile;
(*message)(LDPL_ERROR, "%s", ErrMsg.c_str());
return LDPS_OK;
}
-ld_plugin_status cleanup_hook(void) {
+static ld_plugin_status cleanup_hook(void) {
std::string ErrMsg;
for (int i = 0, e = Cleanup.size(); i != e; ++i)
projects / oota-llvm.git / blobdiff