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dad00daa7a
I went over the output of the following mess of a command:
`(ulimit -m 2000000; ulimit -v 2000000; git ls-files -z | parallel --xargs -0 cat | aspell list --mode=none --ignore-case | grep -E '^[A-Za-z][a-z]*$' | sort | uniq -c | sort -n | grep -vE '.{25}' | aspell pipe -W3 | grep : | cut -d' ' -f2 | less)`
and proceeded to spend a few days looking at it to find probable typos
and fixed a few hundred of them in all of the llvm project (note, the
ones I found are not anywhere near all of them, but it seems like a
good start).
Reviewed By: #libunwind, MaskRay
Differential Revision: https://reviews.llvm.org/D130948
61 lines
1.8 KiB
C++
61 lines
1.8 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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// Ensure that leaf function can be unwund.
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// REQUIRES: linux && (target={{aarch64-.+}} || target={{s390x-.+}} || target={{x86_64-.+}})
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// TODO: Figure out why this fails with Memory Sanitizer.
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// XFAIL: msan
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#undef NDEBUG
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#include <assert.h>
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#include <dlfcn.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <unwind.h>
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_Unwind_Reason_Code frame_handler(struct _Unwind_Context* ctx, void* arg) {
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(void)arg;
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Dl_info info = { 0, 0, 0, 0 };
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// Unwind until the main is reached, above frames deeped on the platform and
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// architecture.
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if (dladdr(reinterpret_cast<void *>(_Unwind_GetIP(ctx)), &info) &&
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info.dli_sname && !strcmp("main", info.dli_sname)) {
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_Exit(0);
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}
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return _URC_NO_REASON;
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}
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void signal_handler(int signum) {
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(void)signum;
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_Unwind_Backtrace(frame_handler, NULL);
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_Exit(-1);
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}
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__attribute__((noinline)) void crashing_leaf_func(void) {
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// libunwind searches for the address before the return address which points
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// to the trap instruction. NOP guarantees the trap instruction is not the
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// first instruction of the function.
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// We should keep this here for other unwinders that also decrement pc.
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__asm__ __volatile__("nop");
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__builtin_trap();
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}
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int main(int, char**) {
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signal(SIGTRAP, signal_handler);
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signal(SIGILL, signal_handler);
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crashing_leaf_func();
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return -2;
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}
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