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171fba11ab
Currently, if GDBserver hits some internal assertion, it exits with error status, instead of aborting. This makes it harder to debug GDBserver, as you can't just debug a core file if GDBserver fails an assertion. I've had to hack the code to make GDBserver abort to debug something several times before. I believe the reason it exits instead of aborting, is to prevent potentially littering the filesystem of smaller embedded targets with core files. I think I recall Daniel Jacobowitz once saying that many years ago, but I can't be sure. Anyhow, that seems reasonable to me. Since we nowadays have a distinction between development and release modes, I propose to make GDBserver abort on internal error if in development mode, while keeping the status quo when in release mode. Thus, after this patch, in development mode, you get: $ ../gdbserver/gdbserver ../../src/gdbserver/server.cc:3711: A problem internal to GDBserver has been detected. captured_main: Assertion `0' failed. Aborted (core dumped) $ while in release mode, you'll continue to get: $ ../gdbserver/gdbserver ../../src/gdbserver/server.cc:3711: A problem internal to GDBserver has been detected. captured_main: Assertion `0' failed. $ echo $? 1 I do not think that this requires a separate configure switch. A "--target_board=native-extended-gdbserver" run on Ubuntu 20.04 ends up with: === gdb Summary === # of unexpected core files 29 ... for me, of which 8 are GDBserver core dumps, 7 more than without this patch. Change-Id: I6861e08ad71f65a0332c91ec95ca001d130b0e9d
88 lines
2.4 KiB
Plaintext
88 lines
2.4 KiB
Plaintext
dnl Autoconf configure script for GDB support library
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dnl Copyright (C) 2020-2022 Free Software Foundation, Inc.
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dnl
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dnl This program is free software; you can redistribute it and/or modify
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dnl it under the terms of the GNU General Public License as published by
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dnl the Free Software Foundation; either version 3 of the License, or
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dnl (at your option) any later version.
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dnl
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dnl This program is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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dnl GNU General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU General Public License
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dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
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dnl Process this file with autoconf to produce a configure script.
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AC_INIT([gdbsupport], 1.0)
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AC_CONFIG_SRCDIR(common-defs.h)
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AC_CONFIG_HEADER(config.h:config.in)
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# Set build, build_cpu, build_vendor and build_os.
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AC_CANONICAL_BUILD
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# Set host, host_cpu, host_vendor, and host_os.
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AC_CANONICAL_HOST
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# Set target, target_cpu, target_vendor, and target_os.
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AC_CANONICAL_TARGET
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AM_MAINTAINER_MODE
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AC_CONFIG_AUX_DIR(..)
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AM_INIT_AUTOMAKE
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AM_SILENT_RULES([yes])
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AC_PROG_CC
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AC_PROG_CXX
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AC_PROG_RANLIB
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AC_USE_SYSTEM_EXTENSIONS
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ACX_LARGEFILE
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# We require a C++11 compiler. Check if one is available, and if
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# necessary, set CXX_DIALECT to some -std=xxx switch.
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AX_CXX_COMPILE_STDCXX(11, , mandatory)
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dnl Set up for gettext.
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ZW_GNU_GETTEXT_SISTER_DIR
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libiberty_INIT
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GDB_AC_COMMON
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GDB_AC_SELFTEST
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AM_CONDITIONAL(SELFTEST, $enable_unittests)
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AM_CONDITIONAL(HAVE_PIPE_OR_PIPE2,
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[test x$ac_cv_func_pipe = xyes -o x$ac_cv_func_pipe2 = xyes ])
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# Check the return and argument types of ptrace.
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GDB_AC_PTRACE
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# Detect support warning flags.
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AM_GDB_COMPILER_TYPE
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AM_GDB_WARNINGS
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# Set the 'development' global.
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. $srcdir/../bfd/development.sh
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if test "$development" = true ; then
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AC_DEFINE(DEVELOPMENT, 1,
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[Define if development-mode features are enabled.])
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fi
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case ${host} in
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*mingw32*)
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AC_DEFINE(USE_WIN32API, 1,
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[Define if we should use the Windows API, instead of the
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POSIX API. On Windows, we use the Windows API when
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building for MinGW, but the POSIX API when building
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for Cygwin.])
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;;
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esac
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AC_SUBST([CONFIG_STATUS_DEPENDENCIES], ['$srcdir/../bfd/development.sh'])
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AC_CONFIG_FILES([Makefile])
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AC_OUTPUT
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