forked from OSchip/llvm-project
[SystemZ/ZOS] Add header file to encapsulate use of <sysexits.h>
The non-standard header file `<sysexits.h>` provides some return values. `EX_IOERR` is used to as a special value to signal a broken pipe to the clang driver. On z/OS Unix System Services, this header file does not exists. This patch - adds a check for `<sysexits.h>`, removing the dependency on `LLVM_ON_UNIX` - adds a new header file `llvm/Support/ExitCodes`, which either includes `<sysexits.h>` or defines `EX_IOERR` - updates the users of `EX_IOERR` to include the new header file Reviewed By: hubert.reinterpretcast Differential Revision: https://reviews.llvm.org/D83472
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@ -71,6 +71,7 @@
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#include "llvm/Option/Option.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/ExitCodes.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/FormatVariadic.h"
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#include "llvm/Support/Host.h"
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@ -87,7 +88,6 @@
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#include <utility>
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#if LLVM_ON_UNIX
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#include <unistd.h> // getpid
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#include <sysexits.h> // EX_IOERR
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#endif
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using namespace clang::driver;
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@ -54,6 +54,7 @@ check_include_file(sys/resource.h HAVE_SYS_RESOURCE_H)
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check_include_file(sys/stat.h HAVE_SYS_STAT_H)
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check_include_file(sys/time.h HAVE_SYS_TIME_H)
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check_include_file(sys/types.h HAVE_SYS_TYPES_H)
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check_include_file(sysexits.h HAVE_SYSEXITS_H)
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check_include_file(termios.h HAVE_TERMIOS_H)
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check_include_file(unistd.h HAVE_UNISTD_H)
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check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H)
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@ -208,6 +208,9 @@
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/* Define to 1 if you have the <sys/types.h> header file. */
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#cmakedefine HAVE_SYS_TYPES_H ${HAVE_SYS_TYPES_H}
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/* Define to 1 if you have the <sysexits.h> header file. */
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#cmakedefine HAVE_SYSEXITS_H ${HAVE_SYSEXITS_H}
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/* Define if the setupterm() function is supported this platform. */
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#cmakedefine LLVM_ENABLE_TERMINFO ${LLVM_ENABLE_TERMINFO}
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@ -0,0 +1,33 @@
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//===-- llvm/Support/ExitCodes.h - Exit codes for exit() -------*- C++ -*-===//
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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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///
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/// \file
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/// This file contains definitions of exit codes for exit() function. They are
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/// either defined by sysexits.h if it is supported, or defined here if
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/// sysexits.h is not supported.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_EXITCODES_H
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#define LLVM_SUPPORT_EXITCODES_H
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#include "llvm/Config/config.h"
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#if HAVE_SYSEXITS_H
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#include <sysexits.h>
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#elif __MVS__
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// <sysexits.h> does not exist on z/OS. The only value used in LLVM is
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// EX_IOERR, which is used to signal a special error condition (broken pipe).
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// Define the macro with its usual value from BSD systems, which is chosen to
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// not clash with more standard exit codes like 1.
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#define EX_IOERR 74
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#elif LLVM_ON_UNIX
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#error Exit code EX_IOERR not available
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#endif
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#endif
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@ -9,14 +9,12 @@
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#include "llvm/Support/CrashRecoveryContext.h"
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#include "llvm/Config/llvm-config.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/ExitCodes.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/Support/Signals.h"
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#include "llvm/Support/ThreadLocal.h"
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#include <mutex>
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#include <setjmp.h>
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#if LLVM_ON_UNIX
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#include <sysexits.h> // EX_IOERR
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#endif
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using namespace llvm;
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@ -36,6 +36,7 @@
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/Config/config.h"
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#include "llvm/Demangle/Demangle.h"
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#include "llvm/Support/ExitCodes.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/FileUtilities.h"
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#include "llvm/Support/Format.h"
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@ -46,7 +47,6 @@
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#include "llvm/Support/raw_ostream.h"
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#include <algorithm>
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#include <string>
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#include <sysexits.h>
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#ifdef HAVE_BACKTRACE
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# include BACKTRACE_HEADER // For backtrace().
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#endif
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