mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-27 04:52:05 +08:00
73cc72729a
This patch moves the gdb/gnulib subdirectory to the top level. It adjusts the top-level build system to build gnulib when necessary, and changes gdb to use this. However, gdbserver still builds its own copy of gnulib, just from the new source location. A small hack was needed to ensure that gnulib is only built when gdb is enabled. The Makefile only provides an ordering -- the directory must be mentioned in configdirs to actually be compiled at all. Most of the patch is just a "git mv" of gnulib, though a few minor path adjustments were needed in some files there. Tested by the buildbot. ChangeLog 2019-06-14 Tom Tromey <tom@tromey.com> * MAINTAINERS: Add gnulib. * gnulib: New directory, move from gdb/gnulib. * configure.ac (host_libs): Add gnulib. * configure: Rebuild. * Makefile.def (host_modules, dependencies): Add gnulib. * Makefile.in: Rebuild. gdb/ChangeLog 2019-06-14 Tom Tromey <tom@tromey.com> * gnulib: Move directory to top-level. * configure.ac: Don't configure gnulib. * configure: Rebuild. * common/common-defs.h: Use new path to gnulib. * Makefile.in (GNULIB_BUILDDIR): Now ../gnulib. (GNULIB_H): Remove. (INCGNU): Look in new gnulib location. (HFILES_NO_SRCDIR): Remove gnulib files. (SUBDIR, REQUIRED_SUBDIRS): Remove gnulib. (generated_files): Remove GNULIB_H. ($(LIBGNU), all-lib): Remove targets. (distclean): Don't mention GNULIB_BUILDDIR. ($(GNULIB_BUILDDIR)/Makefile): Remove target. gdb/gdbserver/ChangeLog 2019-06-14 Tom Tromey <tom@tromey.com> * configure.ac: Use new path to gnulib. * configure: Rebuild. * Makefile.in (INCGNU, $(GNULIB_BUILDDIR)/Makefile): Use new path to gnulib. gnulib/ChangeLog 2019-06-14 Tom Tromey <tom@tromey.com> * update-gnulib.sh: Adjust paths. * Makefile.in: Adjust paths. * configure.ac: Adjust paths. Use ACX_LARGEFILE. * configure: Rebuild.
364 lines
9.9 KiB
C
364 lines
9.9 KiB
C
/* Like <fcntl.h>, but with non-working flags defined to 0.
|
|
|
|
Copyright (C) 2006-2016 Free Software Foundation, Inc.
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
/* written by Paul Eggert */
|
|
|
|
#if __GNUC__ >= 3
|
|
@PRAGMA_SYSTEM_HEADER@
|
|
#endif
|
|
@PRAGMA_COLUMNS@
|
|
|
|
#if defined __need_system_fcntl_h
|
|
/* Special invocation convention. */
|
|
|
|
/* Needed before <sys/stat.h>.
|
|
May also define off_t to a 64-bit type on native Windows. */
|
|
#include <sys/types.h>
|
|
/* On some systems other than glibc, <sys/stat.h> is a prerequisite of
|
|
<fcntl.h>. On glibc systems, we would like to avoid namespace pollution.
|
|
But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an
|
|
extern "C" { ... } block, which leads to errors in C++ mode with the
|
|
overridden <sys/stat.h> from gnulib. These errors are known to be gone
|
|
with g++ version >= 4.3. */
|
|
#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && (defined __ICC || !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))))
|
|
# include <sys/stat.h>
|
|
#endif
|
|
#@INCLUDE_NEXT@ @NEXT_FCNTL_H@
|
|
|
|
#else
|
|
/* Normal invocation convention. */
|
|
|
|
#ifndef _@GUARD_PREFIX@_FCNTL_H
|
|
|
|
/* Needed before <sys/stat.h>.
|
|
May also define off_t to a 64-bit type on native Windows. */
|
|
#include <sys/types.h>
|
|
/* On some systems other than glibc, <sys/stat.h> is a prerequisite of
|
|
<fcntl.h>. On glibc systems, we would like to avoid namespace pollution.
|
|
But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an
|
|
extern "C" { ... } block, which leads to errors in C++ mode with the
|
|
overridden <sys/stat.h> from gnulib. These errors are known to be gone
|
|
with g++ version >= 4.3. */
|
|
#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && (defined __ICC || !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))))
|
|
# include <sys/stat.h>
|
|
#endif
|
|
/* The include_next requires a split double-inclusion guard. */
|
|
#@INCLUDE_NEXT@ @NEXT_FCNTL_H@
|
|
|
|
#ifndef _@GUARD_PREFIX@_FCNTL_H
|
|
#define _@GUARD_PREFIX@_FCNTL_H
|
|
|
|
#ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */
|
|
# include <unistd.h>
|
|
#endif
|
|
|
|
/* Native Windows platforms declare open(), creat() in <io.h>. */
|
|
#if (@GNULIB_OPEN@ || defined GNULIB_POSIXCHECK) \
|
|
&& ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
|
|
# include <io.h>
|
|
#endif
|
|
|
|
|
|
/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
|
|
|
|
/* The definition of _GL_ARG_NONNULL is copied here. */
|
|
|
|
/* The definition of _GL_WARN_ON_USE is copied here. */
|
|
|
|
|
|
/* Declare overridden functions. */
|
|
|
|
#if @GNULIB_FCNTL@
|
|
# if @REPLACE_FCNTL@
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef fcntl
|
|
# define fcntl rpl_fcntl
|
|
# endif
|
|
_GL_FUNCDECL_RPL (fcntl, int, (int fd, int action, ...));
|
|
_GL_CXXALIAS_RPL (fcntl, int, (int fd, int action, ...));
|
|
# else
|
|
# if !@HAVE_FCNTL@
|
|
_GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...));
|
|
# endif
|
|
_GL_CXXALIAS_SYS (fcntl, int, (int fd, int action, ...));
|
|
# endif
|
|
_GL_CXXALIASWARN (fcntl);
|
|
#elif defined GNULIB_POSIXCHECK
|
|
# undef fcntl
|
|
# if HAVE_RAW_DECL_FCNTL
|
|
_GL_WARN_ON_USE (fcntl, "fcntl is not always POSIX compliant - "
|
|
"use gnulib module fcntl for portability");
|
|
# endif
|
|
#endif
|
|
|
|
#if @GNULIB_OPEN@
|
|
# if @REPLACE_OPEN@
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef open
|
|
# define open rpl_open
|
|
# endif
|
|
_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
|
|
_GL_ARG_NONNULL ((1)));
|
|
_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
|
|
# else
|
|
_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
|
|
# endif
|
|
/* On HP-UX 11, in C++ mode, open() is defined as an inline function with a
|
|
default argument. _GL_CXXALIASWARN does not work in this case. */
|
|
# if !defined __hpux
|
|
_GL_CXXALIASWARN (open);
|
|
# endif
|
|
#elif defined GNULIB_POSIXCHECK
|
|
# undef open
|
|
/* Assume open is always declared. */
|
|
_GL_WARN_ON_USE (open, "open is not always POSIX compliant - "
|
|
"use gnulib module open for portability");
|
|
#endif
|
|
|
|
#if @GNULIB_OPENAT@
|
|
# if @REPLACE_OPENAT@
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef openat
|
|
# define openat rpl_openat
|
|
# endif
|
|
_GL_FUNCDECL_RPL (openat, int,
|
|
(int fd, char const *file, int flags, /* mode_t mode */ ...)
|
|
_GL_ARG_NONNULL ((2)));
|
|
_GL_CXXALIAS_RPL (openat, int,
|
|
(int fd, char const *file, int flags, /* mode_t mode */ ...));
|
|
# else
|
|
# if !@HAVE_OPENAT@
|
|
_GL_FUNCDECL_SYS (openat, int,
|
|
(int fd, char const *file, int flags, /* mode_t mode */ ...)
|
|
_GL_ARG_NONNULL ((2)));
|
|
# endif
|
|
_GL_CXXALIAS_SYS (openat, int,
|
|
(int fd, char const *file, int flags, /* mode_t mode */ ...));
|
|
# endif
|
|
_GL_CXXALIASWARN (openat);
|
|
#elif defined GNULIB_POSIXCHECK
|
|
# undef openat
|
|
# if HAVE_RAW_DECL_OPENAT
|
|
_GL_WARN_ON_USE (openat, "openat is not portable - "
|
|
"use gnulib module openat for portability");
|
|
# endif
|
|
#endif
|
|
|
|
|
|
/* Fix up the FD_* macros, only known to be missing on mingw. */
|
|
|
|
#ifndef FD_CLOEXEC
|
|
# define FD_CLOEXEC 1
|
|
#endif
|
|
|
|
/* Fix up the supported F_* macros. Intentionally leave other F_*
|
|
macros undefined. Only known to be missing on mingw. */
|
|
|
|
#ifndef F_DUPFD_CLOEXEC
|
|
# define F_DUPFD_CLOEXEC 0x40000000
|
|
/* Witness variable: 1 if gnulib defined F_DUPFD_CLOEXEC, 0 otherwise. */
|
|
# define GNULIB_defined_F_DUPFD_CLOEXEC 1
|
|
#else
|
|
# define GNULIB_defined_F_DUPFD_CLOEXEC 0
|
|
#endif
|
|
|
|
#ifndef F_DUPFD
|
|
# define F_DUPFD 1
|
|
#endif
|
|
|
|
#ifndef F_GETFD
|
|
# define F_GETFD 2
|
|
#endif
|
|
|
|
/* Fix up the O_* macros. */
|
|
|
|
/* AIX 7.1 with XL C 12.1 defines O_CLOEXEC, O_NOFOLLOW, and O_TTY_INIT
|
|
to values outside 'int' range, so omit these misdefinitions.
|
|
But avoid namespace pollution on non-AIX systems. */
|
|
#ifdef _AIX
|
|
# include <limits.h>
|
|
# if defined O_CLOEXEC && ! (INT_MIN <= O_CLOEXEC && O_CLOEXEC <= INT_MAX)
|
|
# undef O_CLOEXEC
|
|
# endif
|
|
# if defined O_NOFOLLOW && ! (INT_MIN <= O_NOFOLLOW && O_NOFOLLOW <= INT_MAX)
|
|
# undef O_NOFOLLOW
|
|
# endif
|
|
# if defined O_TTY_INIT && ! (INT_MIN <= O_TTY_INIT && O_TTY_INIT <= INT_MAX)
|
|
# undef O_TTY_INIT
|
|
# endif
|
|
#endif
|
|
|
|
#if !defined O_DIRECT && defined O_DIRECTIO
|
|
/* Tru64 spells it 'O_DIRECTIO'. */
|
|
# define O_DIRECT O_DIRECTIO
|
|
#endif
|
|
|
|
#if !defined O_CLOEXEC && defined O_NOINHERIT
|
|
/* Mingw spells it 'O_NOINHERIT'. */
|
|
# define O_CLOEXEC O_NOINHERIT
|
|
#endif
|
|
|
|
#ifndef O_CLOEXEC
|
|
# define O_CLOEXEC 0
|
|
#endif
|
|
|
|
#ifndef O_DIRECT
|
|
# define O_DIRECT 0
|
|
#endif
|
|
|
|
#ifndef O_DIRECTORY
|
|
# define O_DIRECTORY 0
|
|
#endif
|
|
|
|
#ifndef O_DSYNC
|
|
# define O_DSYNC 0
|
|
#endif
|
|
|
|
#ifndef O_EXEC
|
|
# define O_EXEC O_RDONLY /* This is often close enough in older systems. */
|
|
#endif
|
|
|
|
#ifndef O_IGNORE_CTTY
|
|
# define O_IGNORE_CTTY 0
|
|
#endif
|
|
|
|
#ifndef O_NDELAY
|
|
# define O_NDELAY 0
|
|
#endif
|
|
|
|
#ifndef O_NOATIME
|
|
# define O_NOATIME 0
|
|
#endif
|
|
|
|
#ifndef O_NONBLOCK
|
|
# define O_NONBLOCK O_NDELAY
|
|
#endif
|
|
|
|
/* If the gnulib module 'nonblocking' is in use, guarantee a working non-zero
|
|
value of O_NONBLOCK. Otherwise, O_NONBLOCK is defined (above) to O_NDELAY
|
|
or to 0 as fallback. */
|
|
#if @GNULIB_NONBLOCKING@
|
|
# if O_NONBLOCK
|
|
# define GNULIB_defined_O_NONBLOCK 0
|
|
# else
|
|
# define GNULIB_defined_O_NONBLOCK 1
|
|
# undef O_NONBLOCK
|
|
# define O_NONBLOCK 0x40000000
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef O_NOCTTY
|
|
# define O_NOCTTY 0
|
|
#endif
|
|
|
|
#ifndef O_NOFOLLOW
|
|
# define O_NOFOLLOW 0
|
|
#endif
|
|
|
|
#ifndef O_NOLINK
|
|
# define O_NOLINK 0
|
|
#endif
|
|
|
|
#ifndef O_NOLINKS
|
|
# define O_NOLINKS 0
|
|
#endif
|
|
|
|
#ifndef O_NOTRANS
|
|
# define O_NOTRANS 0
|
|
#endif
|
|
|
|
#ifndef O_RSYNC
|
|
# define O_RSYNC 0
|
|
#endif
|
|
|
|
#ifndef O_SEARCH
|
|
# define O_SEARCH O_RDONLY /* This is often close enough in older systems. */
|
|
#endif
|
|
|
|
#ifndef O_SYNC
|
|
# define O_SYNC 0
|
|
#endif
|
|
|
|
#ifndef O_TTY_INIT
|
|
# define O_TTY_INIT 0
|
|
#endif
|
|
|
|
#if ~O_ACCMODE & (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH)
|
|
# undef O_ACCMODE
|
|
# define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH)
|
|
#endif
|
|
|
|
/* For systems that distinguish between text and binary I/O.
|
|
O_BINARY is usually declared in fcntl.h */
|
|
#if !defined O_BINARY && defined _O_BINARY
|
|
/* For MSC-compatible compilers. */
|
|
# define O_BINARY _O_BINARY
|
|
# define O_TEXT _O_TEXT
|
|
#endif
|
|
|
|
#if defined __BEOS__ || defined __HAIKU__
|
|
/* BeOS 5 and Haiku have O_BINARY and O_TEXT, but they have no effect. */
|
|
# undef O_BINARY
|
|
# undef O_TEXT
|
|
#endif
|
|
|
|
#ifndef O_BINARY
|
|
# define O_BINARY 0
|
|
# define O_TEXT 0
|
|
#endif
|
|
|
|
/* Fix up the AT_* macros. */
|
|
|
|
/* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive. Its
|
|
value exceeds INT_MAX, so its use as an int doesn't conform to the
|
|
C standard, and GCC and Sun C complain in some cases. If the bug
|
|
is present, undef AT_FDCWD here, so it can be redefined below. */
|
|
#if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
|
|
# undef AT_FDCWD
|
|
#endif
|
|
|
|
/* Use the same bit pattern as Solaris 9, but with the proper
|
|
signedness. The bit pattern is important, in case this actually is
|
|
Solaris with the above workaround. */
|
|
#ifndef AT_FDCWD
|
|
# define AT_FDCWD (-3041965)
|
|
#endif
|
|
|
|
/* Use the same values as Solaris 9. This shouldn't matter, but
|
|
there's no real reason to differ. */
|
|
#ifndef AT_SYMLINK_NOFOLLOW
|
|
# define AT_SYMLINK_NOFOLLOW 4096
|
|
#endif
|
|
|
|
#ifndef AT_REMOVEDIR
|
|
# define AT_REMOVEDIR 1
|
|
#endif
|
|
|
|
/* Solaris 9 lacks these two, so just pick unique values. */
|
|
#ifndef AT_SYMLINK_FOLLOW
|
|
# define AT_SYMLINK_FOLLOW 2
|
|
#endif
|
|
|
|
#ifndef AT_EACCESS
|
|
# define AT_EACCESS 4
|
|
#endif
|
|
|
|
|
|
#endif /* _@GUARD_PREFIX@_FCNTL_H */
|
|
#endif /* _@GUARD_PREFIX@_FCNTL_H */
|
|
#endif
|