Use gnulib's strerror_r on MinGW
There is no need to keep mingw-strerror around; we can just always use
the code from posix-strerror. The main reason we had that code, it
seems, is to handle winsock error codes, but gnulib's version
handles those.
Unfortunately the code can't be moved into common-utils.c because
libinproctrace.so uses common-utils but not gnulib.
gdb/ChangeLog:
2019-11-15 Christian Biesinger <cbiesinger@google.com>
* Makefile.in: Replace {posix,mingw}-strerror.c with safe-strerror.c.
* configure: Regenerate.
* configure.ac: Don't source common.host.
* gdbsupport/common.host: Remove.
* gdbsupport/mingw-strerror.c: Remove.
* gdbsupport/posix-strerror.c: Rename to...
* gdbsupport/safe-strerror.c: ...this.
gdb/gdbserver/ChangeLog:
2019-11-15 Christian Biesinger <cbiesinger@google.com>
* Makefile.in: Add safe-strerror.c.
* configure: Regenerate.
* configure.ac: Don't source common.host.
Change-Id: I9e6d8a752fc398784201f370cafee65e0ea05474
This commit is contained in:
Christian Biesinger
parent
e176f82170
commit
cd850b40cc
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@ -1,3 +1,13 @@
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2019-11-15 Christian Biesinger <cbiesinger@google.com>
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* Makefile.in: Replace {posix,mingw}-strerror.c with safe-strerror.c.
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* configure: Regenerate.
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* configure.ac: Don't source common.host.
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* gdbsupport/common.host: Remove.
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* gdbsupport/mingw-strerror.c: Remove.
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* gdbsupport/posix-strerror.c: Rename to...
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* gdbsupport/safe-strerror.c: ...this.
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2019-11-15 Christian Biesinger <cbiesinger@google.com>
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* maint.c (scoped_command_stats::print_time): Use localtime_r
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@ -986,6 +986,7 @@ COMMON_SFILES = \
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gdbsupport/ptid.c \
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gdbsupport/rsp-low.c \
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gdbsupport/run-time-clock.c \
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gdbsupport/safe-strerror.c \
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gdbsupport/scoped_mmap.c \
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gdbsupport/signals.c \
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gdbsupport/signals-state-save-restore.c \
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@ -2344,9 +2345,7 @@ ALLDEPFILES = \
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xtensa-linux-nat.c \
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xtensa-linux-tdep.c \
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xtensa-tdep.c \
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xtensa-xtregs.c \
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gdbsupport/mingw-strerror.c \
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gdbsupport/posix-strerror.c
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xtensa-xtregs.c
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# Some files need explicit build rules (due to -Werror problems) or due
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# to sub-directory fun 'n' games.
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@ -6556,10 +6556,6 @@ fi
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. $srcdir/configure.host
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# Add in the common host objects.
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. $srcdir/gdbsupport/common.host
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gdb_host_obs="$gdb_host_obs $common_host_obs"
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# Accumulate some settings from configure.tgt over all enabled targets
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TARGET_OBS=
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@ -177,10 +177,6 @@ fi
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. $srcdir/configure.host
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# Add in the common host objects.
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. $srcdir/gdbsupport/common.host
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gdb_host_obs="$gdb_host_obs $common_host_obs"
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# Accumulate some settings from configure.tgt over all enabled targets
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TARGET_OBS=
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@ -1,3 +1,9 @@
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2019-11-15 Christian Biesinger <cbiesinger@google.com>
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* Makefile.in: Add safe-strerror.c.
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* configure: Regenerate.
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* configure.ac: Don't source common.host.
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2019-11-15 Christian Biesinger <cbiesinger@google.com>
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* config.in: Regenerate.
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@ -220,6 +220,7 @@ SFILES = \
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$(srcdir)/gdbsupport/print-utils.c \
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$(srcdir)/gdbsupport/ptid.c \
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$(srcdir)/gdbsupport/rsp-low.c \
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$(srcdir)/gdbsupport/safe-strerror.c \
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$(srcdir)/gdbsupport/tdesc.c \
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$(srcdir)/gdbsupport/xml-utils.c \
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$(srcdir)/nat/aarch64-sve-linux-ptrace.c \
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@ -266,6 +267,7 @@ OBS = \
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gdbsupport/print-utils.o \
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gdbsupport/ptid.o \
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gdbsupport/rsp-low.o \
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gdbsupport/safe-strerror.o \
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gdbsupport/signals.o \
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gdbsupport/signals-state-save-restore.o \
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gdbsupport/tdesc.o \
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@ -7825,10 +7825,6 @@ esac
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. ${srcdir}/configure.srv
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# Add in the common host objects.
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. ${srcdir}/../gdbsupport/common.host
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srv_host_obs="$common_host_obs"
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if test "${srv_mingwce}" = "yes"; then
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LIBS="$LIBS -lws2"
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elif test "${srv_mingw}" = "yes"; then
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@ -8361,7 +8357,7 @@ $as_echo "#define USE_XML 1" >>confdefs.h
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done
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fi
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GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles $srv_host_obs $srv_selftest_objs"
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GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles $srv_selftest_objs"
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GDBSERVER_LIBS="$srv_libs"
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the target supports __sync_*_compare_and_swap" >&5
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@ -245,10 +245,6 @@ esac
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. ${srcdir}/configure.srv
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# Add in the common host objects.
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. ${srcdir}/../gdbsupport/common.host
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srv_host_obs="$common_host_obs"
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if test "${srv_mingwce}" = "yes"; then
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LIBS="$LIBS -lws2"
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elif test "${srv_mingw}" = "yes"; then
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@ -393,7 +389,7 @@ if test "$srv_xmlfiles" != ""; then
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done
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fi
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GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles $srv_host_obs $srv_selftest_objs"
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GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles $srv_selftest_objs"
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GDBSERVER_LIBS="$srv_libs"
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dnl Check whether the target supports __sync_*_compare_and_swap.
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@ -1,36 +0,0 @@
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# Common object files to include for each host.
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#
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# Copyright (C) 2015-2019 Free Software Foundation, Inc.
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#
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# This file is part of GDB.
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#
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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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#
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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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#
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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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# Map host triplet into the common object files to be included by
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# GDB/gdbserver. This is invoked from the autoconf generated
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# configure script.
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# This file sets the following shell variables:
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# common_host_obs host-specific .o files to include when building
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# GDB/gdbserver
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case "${host}" in
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*-mingw*) common_host_obs=gdbsupport/mingw-strerror.o
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;;
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*)
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common_host_obs=gdbsupport/posix-strerror.o
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;;
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esac
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@ -1,64 +0,0 @@
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/* Safe version of strerror for MinGW, for GDB, the GNU debugger.
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Copyright (C) 2006-2019 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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#include "common-defs.h"
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#include <windows.h>
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/* Implementation of safe_strerror as defined in common-utils.h.
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The Windows runtime implementation of strerror never returns NULL,
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but does return a useless string for anything above sys_nerr;
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unfortunately this includes all socket-related error codes.
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This replacement tries to find a system-provided error message. */
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const char *
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safe_strerror (int errnum)
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{
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static char *buffer;
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int len;
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if (errnum >= 0 && errnum < sys_nerr)
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return strerror (errnum);
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if (buffer)
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{
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LocalFree (buffer);
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buffer = NULL;
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}
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if (FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER
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| FORMAT_MESSAGE_FROM_SYSTEM,
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NULL, errnum,
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MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
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(LPTSTR) &buffer, 0, NULL) == 0)
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{
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static char buf[32];
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xsnprintf (buf, sizeof buf, "(undocumented errno %d)", errnum);
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return buf;
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}
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/* Windows error messages end with a period and a CR-LF; strip that
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out. */
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len = strlen (buffer);
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if (len > 3 && strcmp (buffer + len - 3, ".\r\n") == 0)
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buffer[len - 3] = '\0';
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return buffer;
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}
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@ -1,4 +1,4 @@
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/* Safe version of strerror for POSIX systems for GDB, the GNU debugger.
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/* Safe version of strerror for GDB, the GNU debugger.
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Copyright (C) 2006-2019 Free Software Foundation, Inc.
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