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9e96201002
This change annotates memfd_create with __THROW, fixing a compilation error when building crashpad in C++17 mode. This used to be a consistency error with glibc >= 2.27, that always annotates memfd_create with __THROW: https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/bits/mman-shared.h#l51 Fixed: crashpad:339 Change-Id: Iab99e864f49dcfd9e0b445fd59a22c16bbe2a60b Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2643284 Commit-Queue: Jan Wilken Dörrie <jdoerrie@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org>
37 lines
1.1 KiB
C++
37 lines
1.1 KiB
C++
// Copyright 2019 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <sys/mman.h>
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#include <dlfcn.h>
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#include <sys/syscall.h>
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#include <unistd.h>
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#include "util/misc/no_cfi_icall.h"
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#if defined(__GLIBC__)
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extern "C" {
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int memfd_create(const char* name, unsigned int flags) __THROW {
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static const crashpad::NoCfiIcall<decltype(memfd_create)*> next_memfd_create(
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dlsym(RTLD_NEXT, "memfd_create"));
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return next_memfd_create ? next_memfd_create(name, flags)
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: syscall(SYS_memfd_create, name, flags);
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}
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} // extern "C"
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#endif // __GLIBC__
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