dd6c14742b
MacOS SDK defines certain functions as macros in its stdio header. This
leads to problems in overlay mode.
This patch add undefs to macros that may conflict with function names in
overlay header. We don't expect to import them via overlay macro headers
anyway.
```bash
FAILED: [code=1] libc/src/__support/File/CMakeFiles/libc.src.__support.File.file.dir/file.cpp.o
sccache /usr/bin/clang++ -DLIBC_NAMESPACE=__llvm_libc_22_0_0_git -D_DEBUG -I/Users/runner/work/llvm-project/llvm-project/libc -isystem /Users/runner/work/llvm-project/llvm-project/build/libc/include -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -g -std=gnu++17 -arch arm64 -I /Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.5.sdk/usr/include -DLIBC_QSORT_IMPL=LIBC_QSORT_QUICK_SORT -DLIBC_COPT_STRING_LENGTH_IMPL=element -DLIBC_COPT_FIND_FIRST_CHARACTER_IMPL=element -DLIBC_ADD_NULL_CHECKS -DLIBC_ERRNO_MODE=LIBC_ERRNO_MODE_DEFAULT -DLIBC_THREAD_MODE=LIBC_THREAD_MODE_PLATFORM -DLIBC_COPT_RAW_MUTEX_DEFAULT_SPIN_COUNT=100 -fpie -ffixed-point -fno-builtin -fno-exceptions -fno-lax-vector-conversions -fno-unwind-tables -fno-asynchronous-unwind-tables -fno-rtti -ftrivial-auto-var-init=pattern -fno-omit-frame-pointer -Wall -Wextra -Werror -Wconversion -Wno-sign-conversion -Wdeprecated -Wno-c99-extensions -Wno-gnu-imaginary-constant -Wno-pedantic -Wimplicit-fallthrough -Wwrite-strings -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wstrict-prototypes -Wthread-safety -Wglobal-constructors -MD -MT libc/src/__support/File/CMakeFiles/libc.src.__support.File.file.dir/file.cpp.o -MF libc/src/__support/File/CMakeFiles/libc.src.__support.File.file.dir/file.cpp.o.d -o libc/src/__support/File/CMakeFiles/libc.src.__support.File.file.dir/file.cpp.o -c /Users/runner/work/llvm-project/llvm-project/libc/src/__support/File/file.cpp
In file included from /Users/runner/work/llvm-project/llvm-project/libc/src/__support/File/file.cpp:9:
/Users/runner/work/llvm-project/llvm-project/libc/src/__support/File/file.h:260:8: error: expected member name or ';' after declaration specifiers
260 | void clearerr_unlocked() { err = false; }
| ~~~~ ^
/Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:495:30: note: expanded from macro 'clearerr_unlocked'
495 | #define clearerr_unlocked(p) __sclearerr(p)
| ^
/Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:383:26: note: expanded from macro '__sclearerr'
383 | #define __sclearerr(p) ((void)((p)->_flags &= ~(__SERR|__SEOF)))
| ^
In file included from /Users/runner/work/llvm-project/llvm-project/libc/src/__support/File/file.cpp:9:
/Users/runner/work/llvm-project/llvm-project/libc/src/__support/File/file.h:260:8: error: expected ')'
/Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:495:30: note: expanded from macro 'clearerr_unlocked'
495 | #define clearerr_unlocked(p) __sclearerr(p)
| ^
/Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:383:26: note: expanded from macro '__sclearerr'
383 | #define __sclearerr(p) ((void)((p)->_flags &= ~(__SERR|__SEOF)))
| ^
/Users/runner/work/llvm-project/llvm-project/libc/src/__support/File/file.h:260:8: note: to match this '('
/Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:495:30: note: expanded from macro 'clearerr_unlocked'
495 | #define clearerr_unlocked(p) __sclearerr(p)
| ^
/Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:383:25: note: expanded from macro '__sclearerr'
383 | #define __sclearerr(p) ((void)((p)->_flags &= ~(__SERR|__SEOF)))
| ^
In file included from /Users/runner/work/llvm-project/llvm-project/libc/src/__support/File/file.cpp:9:
/Users/runner/work/llvm-project/llvm-project/libc/src/__support/File/file.h:260:8: error: unknown type name '_flags'
260 | void clearerr_unlocked() { err = false; }
| ^
/Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:495:30: note: expanded from macro 'clearerr_unlocked'
495 | #define clearerr_unlocked(p) __sclearerr(p)
| ^
/Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:383:37: note: expanded from macro '__sclearerr'
383 | #define __sclearerr(p) ((void)((p)->_flags &= ~(__SERR|__SEOF)))
| ^
In file included from /Users/runner/work/llvm-project/llvm-project/libc/src/__support/File/file.cpp:9:
/Users/runner/work/llvm-project/llvm-project/libc/src/__support/File/file.h:260:8: error: a type specifier is required for all declarations
/Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:495:30: note: expanded from macro 'clearerr_unlocked'
495 | #define clearerr_unlocked(p) __sclearerr(p)
| ^
/Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:383:34: note: expanded from macro '__sclearerr'
383 | #define __sclearerr(p) ((void)((p)->_flags &= ~(__SERR|__SEOF)))
| ^
In file included from /Users/runner/work/llvm-project/llvm-project/libc/src/__support/File/file.cpp:9:
/Users/runner/work/llvm-project/llvm-project/libc/src/__support/File/file.h:260:8: error: expected ')'
/Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:495:30: note: expanded from macro 'clearerr_unlocked'
495 | #define clearerr_unlocked(p) __sclearerr(p)
| ^
/Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:383:44: note: expanded from macro '__sclearerr'
383 | #define __sclearerr(p) ((void)((p)->_flags &= ~(__SERR|__SEOF)))
| ^
/Users/runner/work/llvm-project/llvm-project/libc/src/__support/File/file.h:260:8: note: to match this '('
/Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:495:30: note: expanded from macro 'clearerr_unlocked'
495 | #define clearerr_unlocked(p) __sclearerr(p)
| ^
/Applications/Xcode_16.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:383:31: note: expanded from macro '__sclearerr'
383 | #define __sclearerr(p) ((void)((p)->_flags &= ~(__SERR|__SEOF)))
| ^
/Users/runner/work/llvm-project/llvm-project/libc/src/__support/File/file.cpp:426:23: error: out-of-line definition of 'mode_flags' does not match any declaration in '__llvm_libc_22_0_0_git::File'
426 | File::ModeFlags File::mode_flags(const char *mode) {
| ^~~~~~~~~~
6 errors generated.
```
84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
//===-- Including stdio.h in overlay mode ---------------------------------===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_LIBC_HDR_STDIO_OVERLAY_H
|
|
#define LLVM_LIBC_HDR_STDIO_OVERLAY_H
|
|
|
|
#ifdef LIBC_FULL_BUILD
|
|
#error "This header should only be included in overlay mode"
|
|
#endif
|
|
|
|
// Overlay mode
|
|
|
|
// glibc <stdio.h> header might provide extern inline definitions for few
|
|
// functions, causing external alias errors. They are guarded by
|
|
// `__USE_EXTERN_INLINES` macro. We temporarily disable `__USE_EXTERN_INLINES`
|
|
// macro by defining `__NO_INLINE__` before including <stdio.h>.
|
|
// And the same with `__USE_FORTIFY_LEVEL`, which will be temporarily disabled
|
|
// with `_FORTIFY_SOURCE`.
|
|
|
|
#ifdef _FORTIFY_SOURCE
|
|
#define LIBC_OLD_FORTIFY_SOURCE _FORTIFY_SOURCE
|
|
#undef _FORTIFY_SOURCE
|
|
#endif
|
|
|
|
#ifdef __USE_EXTERN_INLINES
|
|
#define LIBC_OLD_USE_EXTERN_INLINES
|
|
#undef __USE_EXTERN_INLINES
|
|
#endif
|
|
|
|
#ifdef __USE_FORTIFY_LEVEL
|
|
#define LIBC_OLD_USE_FORTIFY_LEVEL __USE_FORTIFY_LEVEL
|
|
#undef __USE_FORTIFY_LEVEL
|
|
#define __USE_FORTIFY_LEVEL 0
|
|
#endif
|
|
|
|
#ifndef __NO_INLINE__
|
|
#define __NO_INLINE__ 1
|
|
#define LIBC_SET_NO_INLINE
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
|
|
#ifdef LIBC_OLD_FORTIFY_SOURCE
|
|
#define _FORTIFY_SOURCE LIBC_OLD_FORTIFY_SOURCE
|
|
#undef LIBC_OLD_FORTIFY_SOURCE
|
|
#endif
|
|
|
|
#ifdef LIBC_SET_NO_INLINE
|
|
#undef __NO_INLINE__
|
|
#undef LIBC_SET_NO_INLINE
|
|
#endif
|
|
|
|
#ifdef LIBC_OLD_USE_FORTIFY_LEVEL
|
|
#undef __USE_FORTIFY_LEVEL
|
|
#define __USE_FORTIFY_LEVEL LIBC_OLD_USE_FORTIFY_LEVEL
|
|
#undef LIBC_OLD_USE_FORTIFY_LEVEL
|
|
#endif
|
|
|
|
#ifdef LIBC_OLD_USE_EXTERN_INLINES
|
|
#define __USE_EXTERN_INLINES
|
|
#undef LIBC_OLD_USE_EXTERN_INLINES
|
|
#endif
|
|
|
|
// undefine symbolic macros for Apple platforms in overlay mode
|
|
#ifdef __APPLE__
|
|
#undef getc_unlocked
|
|
#undef putc_unlocked
|
|
#undef getchar_unlocked
|
|
#undef putchar_unlocked
|
|
#undef fropen
|
|
#undef fwopen
|
|
#undef feof_unlocked
|
|
#undef ferror_unlocked
|
|
#undef clearerr_unlocked
|
|
#undef fileno_unlocked
|
|
#endif
|
|
|
|
#endif // LLVM_LIBC_HDR_STDIO_OVERLAY_H
|