6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-01 00:33:09 +00:00
Code Issues Projects Releases Wiki Activity

Add an option to the gold plugin to make it emit a file with the public api

Browse Source 
list that can in turn be passed to -internalize pass through
-internalize-public-api-file.

Pass gold -plugin-opt=generate-api-file to produce "apifile.txt" in the current
directory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65295 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky 2009-02-22 22:15:44 +00:00
parent bc989d462d
commit ca4286295f
1 changed files with 23 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
tools/gold/gold-plugin.cpp
View File

@ -22,6 +22,7 @@
#include <cerrno>
#include <cstdlib>
#include <cstring>
#include <fstream>
#include <list>
#include <vector>
@ -42,6 +43,8 @@ namespace {
int api_version = 0;
int gold_version = 0;
bool generate_api_file = false;
struct claimed_file {
lto_module_t M;
void *handle;
@ -96,7 +99,11 @@ ld_plugin_status onload(ld_plugin_tv *tv) {
//output_type = LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC;
break;
case LDPT_OPTION:
(*message)(LDPL_WARNING, "Ignoring flag %s", tv->tv_u.tv_string);
if (strcmp("generate-api-file", tv->tv_u.tv_string) == 0) {
generate_api_file = true;
} else {
(*message)(LDPL_WARNING, "Ignoring flag %s", tv->tv_u.tv_string);
}
break;
case LDPT_REGISTER_CLAIM_FILE_HOOK: {
ld_plugin_register_claim_file callback;
@ -285,6 +292,15 @@ ld_plugin_status all_symbols_read_hook(void) {
E = Modules.end(); I != E; ++I)
lto_codegen_add_module(cg, I->M);
std::ofstream api_file;
if (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.");
abort();
}
}
// If we don't preserve any symbols, libLTO will assume that all symbols are
// needed. Keep all symbols unless we're producing a final executable.
if (output_type == LTO_CODEGEN_PIC_MODEL_STATIC) {
@ -298,10 +314,16 @@ ld_plugin_status all_symbols_read_hook(void) {
I->syms[i].resolution == LDPR_RESOLVED_IR)) {
lto_codegen_add_must_preserve_symbol(cg, I->syms[i].name);
anySymbolsPreserved = true;
if (generate_api_file)
api_file << I->syms[i].name << "\n";
}
}
}
if (generate_api_file)
api_file.close();
if (!anySymbolsPreserved) {
// This entire file is unnecessary!
lto_codegen_dispose(cg);