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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.
71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
/* strerror.c --- POSIX compatible system error routine
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Copyright (C) 2007-2016 Free Software Foundation, Inc.
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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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#include <config.h>
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/* Specification. */
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#include <string.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "intprops.h"
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#include "strerror-override.h"
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#include "verify.h"
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/* Use the system functions, not the gnulib overrides in this file. */
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#undef sprintf
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char *
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strerror (int n)
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#undef strerror
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{
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static char buf[STACKBUF_LEN];
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size_t len;
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/* Cast away const, due to the historical signature of strerror;
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callers should not be modifying the string. */
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const char *msg = strerror_override (n);
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if (msg)
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return (char *) msg;
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msg = strerror (n);
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/* Our strerror_r implementation might use the system's strerror
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buffer, so all other clients of strerror have to see the error
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copied into a buffer that we manage. This is not thread-safe,
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even if the system strerror is, but portable programs shouldn't
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be using strerror if they care about thread-safety. */
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if (!msg || !*msg)
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{
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static char const fmt[] = "Unknown error %d";
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verify (sizeof buf >= sizeof (fmt) + INT_STRLEN_BOUND (n));
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sprintf (buf, fmt, n);
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errno = EINVAL;
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return buf;
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}
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/* Fix STACKBUF_LEN if this ever aborts. */
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len = strlen (msg);
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if (sizeof buf <= len)
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abort ();
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return memcpy (buf, msg, len + 1);
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}
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