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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.
151 lines
4.6 KiB
C
151 lines
4.6 KiB
C
/* Common definitions.
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Copyright (C) 1986-2019 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef COMMON_COMMON_DEFS_H
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#define COMMON_COMMON_DEFS_H
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#include "config.h"
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#undef PACKAGE_NAME
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#undef PACKAGE_VERSION
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#undef PACKAGE_STRING
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#undef PACKAGE_TARNAME
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#ifdef GDBSERVER
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#include "build-gnulib-gdbserver/config.h"
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#else
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#include "../../gnulib/config.h"
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#endif
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#undef PACKAGE_NAME
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#undef PACKAGE_VERSION
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#undef PACKAGE_STRING
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#undef PACKAGE_TARNAME
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/* From:
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https://www.gnu.org/software/gnulib/manual/html_node/stdint_002eh.html
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"On some hosts that predate C++11, when using C++ one must define
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__STDC_CONSTANT_MACROS to make visible the definitions of constant
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macros such as INTMAX_C, and one must define __STDC_LIMIT_MACROS to
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make visible the definitions of limit macros such as INTMAX_MAX.".
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And:
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https://www.gnu.org/software/gnulib/manual/html_node/inttypes_002eh.html
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"On some hosts that predate C++11, when using C++ one must define
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__STDC_FORMAT_MACROS to make visible the declarations of format
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macros such as PRIdMAX."
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Must do this before including any system header, since other system
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headers may include stdint.h/inttypes.h. */
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#define __STDC_CONSTANT_MACROS 1
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#define __STDC_LIMIT_MACROS 1
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#define __STDC_FORMAT_MACROS 1
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/* Some distros enable _FORTIFY_SOURCE by default, which on occasion
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has caused build failures with -Wunused-result when a patch is
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developed on a distro that does not enable _FORTIFY_SOURCE. We
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enable it here in order to try to catch these problems earlier;
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plus this seems like a reasonable safety measure. The check for
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optimization is required because _FORTIFY_SOURCE only works when
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optimization is enabled. If _FORTIFY_SOURCE is already defined,
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then we don't do anything. */
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#if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__ > 0
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#define _FORTIFY_SOURCE 2
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#endif
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/* We don't support Windows versions before XP, so we define
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_WIN32_WINNT correspondingly to ensure the Windows API headers
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expose the required symbols. */
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#if defined (__MINGW32__) || defined (__CYGWIN__)
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# ifdef _WIN32_WINNT
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# if _WIN32_WINNT < 0x0501
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# undef _WIN32_WINNT
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# define _WIN32_WINNT 0x0501
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# endif
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# else
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# define _WIN32_WINNT 0x0501
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# endif
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#endif /* __MINGW32__ || __CYGWIN__ */
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <string.h>
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#ifdef HAVE_STRINGS_H
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#include <strings.h> /* for strcasecmp and strncasecmp */
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#endif
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#include <errno.h>
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#include <alloca.h>
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#include "ansidecl.h"
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/* This is defined by ansidecl.h, but we prefer gnulib's version. On
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MinGW, gnulib might enable __USE_MINGW_ANSI_STDIO, which may or not
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require use of attribute gnu_printf instead of printf. gnulib
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checks that at configure time. Since _GL_ATTRIBUTE_FORMAT_PRINTF
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is compatible with ATTRIBUTE_PRINTF, simply use it. */
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#undef ATTRIBUTE_PRINTF
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#define ATTRIBUTE_PRINTF _GL_ATTRIBUTE_FORMAT_PRINTF
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#if GCC_VERSION >= 3004
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#define ATTRIBUTE_UNUSED_RESULT __attribute__ ((__warn_unused_result__))
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#else
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#define ATTRIBUTE_UNUSED_RESULT
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#endif
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#include "libiberty.h"
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#include "pathmax.h"
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#include "gdb/signals.h"
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#include "gdb_locale.h"
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#include "ptid.h"
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#include "common-types.h"
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#include "common-utils.h"
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#include "gdb_assert.h"
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#include "errors.h"
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#include "print-utils.h"
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#include "common-debug.h"
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#include "cleanups.h"
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#include "common-exceptions.h"
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#include "common/poison.h"
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#define EXTERN_C extern "C"
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#define EXTERN_C_PUSH extern "C" {
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#define EXTERN_C_POP }
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/* Pull in gdb::unique_xmalloc_ptr. */
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#include "common/gdb_unique_ptr.h"
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/* String containing the current directory (what getwd would return). */
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extern char *current_directory;
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/* sbrk on macOS is not useful for our purposes, since sbrk(0) always
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returns the same value. brk/sbrk on macOS is just an emulation
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that always returns a pointer to a 4MB section reserved for
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that. */
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#if defined (HAVE_SBRK) && !__APPLE__
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#define HAVE_USEFUL_SBRK 1
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#endif
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#endif /* COMMON_COMMON_DEFS_H */
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