mirror of
https://github.com/intel/llvm.git
synced 2026-01-15 12:25:46 +08:00
2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
31 lines
1.1 KiB
C++
31 lines
1.1 KiB
C++
//===-- LibcGlue.cpp --------------------------------------------*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// This file adds functions missing from libc on older versions of linux
|
|
|
|
#include <cerrno>
|
|
#include <lldb/Host/linux/Uio.h>
|
|
#include <sys/syscall.h>
|
|
#include <unistd.h>
|
|
|
|
#if !HAVE_PROCESS_VM_READV
|
|
// If the syscall wrapper is not available, provide one.
|
|
ssize_t process_vm_readv(::pid_t pid, const struct iovec *local_iov,
|
|
unsigned long liovcnt, const struct iovec *remote_iov,
|
|
unsigned long riovcnt, unsigned long flags) {
|
|
#if HAVE_NR_PROCESS_VM_READV
|
|
// If we have the syscall number, we can issue the syscall ourselves.
|
|
return syscall(__NR_process_vm_readv, pid, local_iov, liovcnt, remote_iov,
|
|
riovcnt, flags);
|
|
#else // If not, let's pretend the syscall is not present.
|
|
errno = ENOSYS;
|
|
return -1;
|
|
#endif
|
|
}
|
|
#endif
|