vasilito
cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
//===- tools/lld/lld.cpp - Linker Driver Dispatcher -----------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the main function of the lld executable. The main
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// function is a thin wrapper which dispatches to the platform specific
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// driver.
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//
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// lld is a single executable that contains four different linkers for ELF,
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// COFF, WebAssembly and Mach-O. The main function dispatches according to
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// argv[0] (i.e. command name). The most common name for each target is shown
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// below:
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//
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// - ld.lld: ELF (Unix)
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// - ld64: Mach-O (macOS)
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// - lld-link: COFF (Windows)
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// - ld-wasm: WebAssembly
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//
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// lld can be invoked as "lld" along with "-flavor" option. This is for
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// backward compatibility and not recommended.
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//
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//===----------------------------------------------------------------------===//
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#include "lld/Common/Driver.h"
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#include "lld/Common/ErrorHandler.h"
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#include "lld/Common/Memory.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/CrashRecoveryContext.h"
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#include "llvm/Support/LLVMDriver.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/PluginLoader.h"
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#include "llvm/Support/Process.h"
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#include "llvm/TargetParser/Host.h"
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#include "llvm/TargetParser/Triple.h"
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#include <cstdlib>
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#include <optional>
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using namespace lld;
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using namespace llvm;
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using namespace llvm::sys;
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namespace lld {
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extern bool inTestOutputDisabled;
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// Bypass the crash recovery handler, which is only meant to be used in
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// LLD-as-lib scenarios.
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int unsafeLldMain(llvm::ArrayRef<const char *> args,
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llvm::raw_ostream &stdoutOS, llvm::raw_ostream &stderrOS,
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llvm::ArrayRef<DriverDef> drivers, bool exitEarly);
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} // namespace lld
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// When in lit tests, tells how many times the LLD tool should re-execute the
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// main loop with the same inputs. When not in test, returns a value of 0 which
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// signifies that LLD shall not release any memory after execution, to speed up
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// process destruction.
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static unsigned inTestVerbosity() {
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unsigned v = 0;
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StringRef(getenv("LLD_IN_TEST")).getAsInteger(10, v);
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return v;
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}
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LLD_HAS_DRIVER(coff)
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LLD_HAS_DRIVER(elf)
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LLD_HAS_DRIVER(mingw)
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LLD_HAS_DRIVER(macho)
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LLD_HAS_DRIVER(wasm)
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int lld_main(int argc, char **argv, const llvm::ToolContext &) {
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sys::Process::UseANSIEscapeCodes(true);
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if (::getenv("FORCE_LLD_DIAGNOSTICS_CRASH")) {
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llvm::errs()
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<< "crashing due to environment variable FORCE_LLD_DIAGNOSTICS_CRASH\n";
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LLVM_BUILTIN_TRAP;
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}
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ArrayRef<const char *> args(argv, argv + argc);
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// Not running in lit tests, just take the shortest codepath with global
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// exception handling and no memory cleanup on exit.
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if (!inTestVerbosity()) {
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int r =
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lld::unsafeLldMain(args, llvm::outs(), llvm::errs(), LLD_ALL_DRIVERS,
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/*exitEarly=*/true);
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return r;
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}
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std::optional<int> mainRet;
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CrashRecoveryContext::Enable();
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for (unsigned i = inTestVerbosity(); i > 0; --i) {
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// Disable stdout/stderr for all iterations but the last one.
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inTestOutputDisabled = (i != 1);
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// Execute one iteration.
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auto r = lldMain(args, llvm::outs(), llvm::errs(), LLD_ALL_DRIVERS);
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if (!r.canRunAgain)
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exitLld(r.retCode); // Exit now, can't re-execute again.
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if (!mainRet) {
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mainRet = r.retCode;
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} else if (r.retCode != *mainRet) {
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// Exit now, to fail the tests if the result is different between runs.
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return r.retCode;
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}
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}
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return *mainRet;
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}
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