mirror of
https://github.com/tinygo-org/tinygo.git
synced 2026-07-26 06:38:42 +00:00
Ayke van Laethem
dfbb133ea6
This switches the Espressif fork from LLVM 19 to LLVM 20, so we can use the improvements made between those LLVM versions. It also better aligns with the system-LLVM build method, which currently also defaults to LLVM 20. Note that this disables the machine outliner for RISC-V. It appears there's a bug in there somewhere, with the machine outliner enabled the crypto/elliptic package tests fail with -target=riscv-qemu. This should ideally be investigated and reported upstream.
99 lines
3.1 KiB
C++
99 lines
3.1 KiB
C++
//go:build byollvm
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#include <clang/Basic/DiagnosticOptions.h>
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#include <clang/CodeGen/CodeGenAction.h>
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#include <clang/Driver/Compilation.h>
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#include <clang/Driver/Driver.h>
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#include <clang/Frontend/CompilerInstance.h>
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#include <clang/Frontend/CompilerInvocation.h>
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#include <clang/Frontend/FrontendDiagnostic.h>
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#include <clang/Frontend/TextDiagnosticPrinter.h>
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#include <clang/FrontendTool/Utils.h>
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#include <llvm/ADT/IntrusiveRefCntPtr.h>
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#include <llvm/Option/Option.h>
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#include <llvm/TargetParser/Host.h>
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using namespace llvm;
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using namespace clang;
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#include "cc1as.h"
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// This file provides C wrappers for the builtin tools cc1 and cc1as
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// provided by Clang, and calls them as the driver would call them.
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extern "C" {
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bool tinygo_clang_driver(int argc, char **argv) {
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std::vector<const char*> args(argv, argv + argc);
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// The compiler invocation needs a DiagnosticsEngine so it can report problems
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llvm::IntrusiveRefCntPtr<clang::DiagnosticOptions> DiagOpts = new clang::DiagnosticOptions();
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clang::TextDiagnosticPrinter DiagnosticPrinter(llvm::errs(), &*DiagOpts);
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clang::DiagnosticsEngine Diags(llvm::IntrusiveRefCntPtr<clang::DiagnosticIDs>(new clang::DiagnosticIDs()), &*DiagOpts, &DiagnosticPrinter, false);
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// Create the clang driver
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clang::driver::Driver TheDriver(args[0], llvm::sys::getDefaultTargetTriple(), Diags);
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// Create the set of actions to perform
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std::unique_ptr<clang::driver::Compilation> C(TheDriver.BuildCompilation(args));
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if (!C) {
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return false;
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}
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const clang::driver::JobList &Jobs = C->getJobs();
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// There may be more than one job, for example for .S files
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// (preprocessor + assembler).
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for (auto Cmd : Jobs) {
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// Select the tool: cc1 or cc1as.
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const llvm::opt::ArgStringList &CCArgs = Cmd.getArguments();
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if (strcmp(*CCArgs.data(), "-cc1") == 0) {
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// This is the C frontend.
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// Initialize a compiler invocation object from the clang (-cc1) arguments.
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std::unique_ptr<clang::CompilerInstance> Clang(new clang::CompilerInstance());
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bool success = clang::CompilerInvocation::CreateFromArgs(
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Clang->getInvocation(),
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CCArgs,
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Diags);
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if (!success) {
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return false;
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}
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// Create the actual diagnostics engine.
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Clang->createDiagnostics(*llvm::vfs::getRealFileSystem());
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if (!Clang->hasDiagnostics()) {
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return false;
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}
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// Execute the frontend actions.
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success = ExecuteCompilerInvocation(Clang.get());
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if (!success) {
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return false;
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}
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} else if (strcmp(*CCArgs.data(), "-cc1as") == 0) {
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// This is the assembler frontend. Parse the arguments.
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AssemblerInvocation Asm;
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ArrayRef<const char *> Argv = llvm::ArrayRef<const char*>(CCArgs);
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if (!AssemblerInvocation::CreateFromArgs(Asm, Argv.slice(1), Diags))
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return false;
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// Execute the invocation, unless there were parsing errors.
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bool failed = Diags.hasErrorOccurred() || ExecuteAssembler(Asm, Diags);
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if (failed) {
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return false;
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}
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} else {
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// Unknown tool, print the tool and exit.
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fprintf(stderr, "unknown tool: %s\n", *CCArgs.data());
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return false;
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}
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}
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// Commands executed successfully.
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return true;
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}
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} // extern "C"
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