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).
74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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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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// TODO: Figure out why this fails with Memory Sanitizer.
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// XFAIL: msan
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// This test fails on older llvm, when built with picolibc.
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// XFAIL: clang-16 && LIBCXX-PICOLIBC-FIXME
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#undef NDEBUG
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#include <assert.h>
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#include <stdlib.h>
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#include <unwind.h>
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#define EXPECTED_NUM_FRAMES 50
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#define NUM_FRAMES_UPPER_BOUND 100
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__attribute__((noinline)) _Unwind_Reason_Code callback(_Unwind_Context *context,
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void *cnt) {
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(void)context;
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int *i = (int *)cnt;
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++*i;
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if (*i > NUM_FRAMES_UPPER_BOUND) {
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abort();
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}
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return _URC_NO_REASON;
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}
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__attribute__((noinline)) void test_backtrace() {
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int n = 0;
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_Unwind_Backtrace(&callback, &n);
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if (n < EXPECTED_NUM_FRAMES) {
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abort();
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}
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}
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// These functions are effectively the same, but we have to be careful to avoid
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// unwanted optimizations that would mess with the number of frames we expect.
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// Surprisingly, slapping `noinline` is not sufficient -- we also have to avoid
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// writing the function in a way that the compiler can easily spot tail
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// recursion.
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__attribute__((noinline)) int test1(int i);
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__attribute__((noinline)) int test2(int i);
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__attribute__((noinline)) int test1(int i) {
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if (i == 0) {
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test_backtrace();
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return 0;
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} else {
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return i + test2(i - 1);
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}
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}
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__attribute__((noinline)) int test2(int i) {
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if (i == 0) {
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test_backtrace();
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return 0;
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} else {
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return i + test1(i - 1);
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}
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}
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int main(int, char**) {
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int total = test1(50);
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assert(total == 1275);
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return 0;
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}
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