mirror of
https://github.com/FEX-Emu/FEX.git
synced 2026-10-08 03:00:35 +02:00
Tony Wasserka
b08d372c78
The -deps target is the wrong target to add this to, since its compile flags are propagated to both Guest.cpp and Host.cpp. Instead, define the flag only when processing files within a guest context.
92 lines
3.3 KiB
C++
92 lines
3.3 KiB
C++
#include "clang/Tooling/Tooling.h"
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#include "clang/Tooling/CompilationDatabase.h"
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#include "llvm/Support/Signals.h"
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#include <iostream>
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#include <string>
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#include "interface.h"
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using namespace clang::tooling;
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void print_usage(const char* program_name) {
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std::cerr << "Usage: " << program_name << " <filename> <libname> <gen_target> <output_filename> -- <clang_flags>\n";
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}
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int main(int argc, char* const argv[]) {
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llvm::sys::PrintStackTraceOnErrorSignal(argv[0]);
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if (argc < 5) {
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print_usage(argv[0]);
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return EXIT_FAILURE;
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}
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// Parse compile flags after "--" (this updates argc to the index of the "--" separator)
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std::string error;
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auto compile_db = FixedCompilationDatabase::loadFromCommandLine(argc, argv, error);
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if (!compile_db) {
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print_usage(argv[0]);
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std::cerr << "\nError: " << error << "\n";
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return EXIT_FAILURE;
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}
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// Process arguments before the "--" separator
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if (argc != 5 && argc != 6) {
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print_usage(argv[0]);
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return EXIT_FAILURE;
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}
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char* const* arg = argv + 1;
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const auto filename = *arg++;
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const std::string libname = *arg++;
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const std::string target_abi = *arg++;
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const std::string output_filename = *arg++;
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OutputFilenames output_filenames;
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if (target_abi == "-host") {
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output_filenames.host = output_filename;
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} else if (target_abi == "-guest") {
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output_filenames.guest = output_filename;
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} else {
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std::cerr << "Unrecognized generator target ABI \"" << target_abi << "\"\n";
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return EXIT_FAILURE;
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}
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ClangTool Tool(*compile_db, { filename });
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if (CLANG_RESOURCE_DIR[0] != 0) {
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auto set_resource_directory = [](const clang::tooling::CommandLineArguments &Args, clang::StringRef) {
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clang::tooling::CommandLineArguments AdjustedArgs = Args;
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AdjustedArgs.push_back(std::string { "-resource-dir=" } + CLANG_RESOURCE_DIR);
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return AdjustedArgs;
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};
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Tool.appendArgumentsAdjuster(set_resource_directory);
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}
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ClangTool GuestTool = Tool;
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{
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const bool is_32bit_guest = (argv[5] == std::string_view { "-for-32bit-guest" });
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auto append_guest_args = [is_32bit_guest](const clang::tooling::CommandLineArguments &Args, clang::StringRef) {
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clang::tooling::CommandLineArguments AdjustedArgs = Args;
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const char* platform = is_32bit_guest ? "i686" : "x86_64";
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if (is_32bit_guest) {
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AdjustedArgs.push_back("-m32");
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AdjustedArgs.push_back("-DIS_32BIT_THUNK");
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}
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AdjustedArgs.push_back(std::string { "--target=" } + platform + "-linux-unknown");
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AdjustedArgs.push_back("-isystem");
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AdjustedArgs.push_back(std::string { "/usr/" } + platform + "-linux-gnu/include/");
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AdjustedArgs.push_back("-DGUEST_THUNK_LIBRARY");
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return AdjustedArgs;
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};
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GuestTool.appendArgumentsAdjuster(append_guest_args);
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}
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auto data_layout_analysis_factory = std::make_unique<AnalyzeDataLayoutActionFactory>();
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GuestTool.run(data_layout_analysis_factory.get());
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auto& data_layout = data_layout_analysis_factory->GetDataLayout();
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return Tool.run(std::make_unique<GenerateThunkLibsActionFactory>(std::move(libname), std::move(output_filenames), data_layout).get());
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}
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