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).
84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
//=== FuzzerExtWindows.cpp - Interface to external functions --------------===//
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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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// Implementation of FuzzerExtFunctions for Windows. Uses alternatename when
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// compiled with MSVC. Uses weak aliases when compiled with clang. Unfortunately
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// the method each compiler supports is not supported by the other.
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//===----------------------------------------------------------------------===//
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#include "FuzzerPlatform.h"
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#if LIBFUZZER_WINDOWS
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#include "FuzzerExtFunctions.h"
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#include "FuzzerIO.h"
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#include <stdlib.h>
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using namespace fuzzer;
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// Intermediate macro to ensure the parameter is expanded before stringified.
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#define STRINGIFY_(A) #A
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#define STRINGIFY(A) STRINGIFY_(A)
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#if LIBFUZZER_MSVC
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#define GET_FUNCTION_ADDRESS(fn) &fn
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#else
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#define GET_FUNCTION_ADDRESS(fn) __builtin_function_start(fn)
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#endif // LIBFUZER_MSVC
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// Copied from compiler-rt/lib/sanitizer_common/sanitizer_win_defs.h
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#if defined(_M_IX86) || defined(__i386__)
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#define WIN_SYM_PREFIX "_"
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#else
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#define WIN_SYM_PREFIX
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#endif
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// Declare external functions as having alternativenames, so that we can
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// determine if they are not defined.
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#define EXTERNAL_FUNC(Name, Default) \
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__pragma(comment(linker, "/alternatename:" WIN_SYM_PREFIX STRINGIFY( \
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Name) "=" WIN_SYM_PREFIX STRINGIFY(Default)))
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extern "C" {
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#define EXT_FUNC(NAME, RETURN_TYPE, FUNC_SIG, WARN) \
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RETURN_TYPE NAME##Def FUNC_SIG { \
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Printf("ERROR: Function \"%s\" not defined.\n", #NAME); \
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exit(1); \
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} \
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EXTERNAL_FUNC(NAME, NAME##Def) RETURN_TYPE NAME FUNC_SIG
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#include "FuzzerExtFunctions.def"
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#undef EXT_FUNC
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}
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template <typename T>
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static T *GetFnPtr(void *Fun, void *FunDef, const char *FnName,
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bool WarnIfMissing) {
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if (Fun == FunDef) {
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if (WarnIfMissing)
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Printf("WARNING: Failed to find function \"%s\".\n", FnName);
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return nullptr;
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}
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return (T *)Fun;
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}
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namespace fuzzer {
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ExternalFunctions::ExternalFunctions() {
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#define EXT_FUNC(NAME, RETURN_TYPE, FUNC_SIG, WARN) \
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this->NAME = GetFnPtr<decltype(::NAME)>(GET_FUNCTION_ADDRESS(::NAME), \
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GET_FUNCTION_ADDRESS(::NAME##Def), \
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#NAME, WARN);
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#include "FuzzerExtFunctions.def"
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#undef EXT_FUNC
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}
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} // namespace fuzzer
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#endif // LIBFUZZER_WINDOWS
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