forked from Imagelibrary/binutils-gdb
31c5028017
Whenever we start gdb in the testsuite, we have the rather verbose: ... $ gdb GNU gdb (GDB) 14.0.50.20230405-git Copyright (C) 2023 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-pc-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <https://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word". (gdb) ... This makes gdb.log longer than necessary and harder to read. We do need to test that the output is produced, but that should be limited to one or a few test-cases. Fix this by adding -q to INTERNAL_GDBFLAGS, such that we simply have: ... $ gdb -q (gdb) ... Tested on x86_64-linux.
91 lines
2.8 KiB
Plaintext
91 lines
2.8 KiB
Plaintext
# Copyright 2017-2023 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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#
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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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# This file is part of the gdb testsuite.
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# Test that GDB tolerates being started with libSegFault.so preloaded
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# with LD_PRELOAD, and that GDB warns about a custom SIGSEGV custom
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# handler. See PR gdb/18653
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# <https://sourceware.org/bugzilla/show_bug.cgi?id=18653#c7>.
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# We cannot expect remote hosts to see environment variables set on
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# the local machine.
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require {!is_remote host}
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# Spawn GDB with LIB preloaded with LD_PRELOAD. CMDLINE_OPTS are
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# command line options passed to GDB.
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proc gdb_spawn_with_ld_preload {lib cmdline_opts} {
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global env
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save_vars { env(LD_PRELOAD) env(ASAN_OPTIONS)} {
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if { ![info exists env(LD_PRELOAD) ]
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|| $env(LD_PRELOAD) == "" } {
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set env(LD_PRELOAD) "$lib"
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} else {
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append env(LD_PRELOAD) ":$lib"
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}
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# Prevent address sanitizer error:
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# ASan runtime does not come first in initial library list; you should
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# either link runtime to your application or manually preload it with
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# LD_PRELOAD.
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set_sanitizer_default ASAN_OPTIONS verify_asan_link_order 0
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gdb_spawn_with_cmdline_opts $cmdline_opts
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}
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}
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proc test_libsegfault {} {
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global gdb_prompt
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set libsegfault "libSegFault.so"
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# When started normally, if libSegFault.so is preloaded, GDB
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# should warn about not being able to propagate the signal
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# disposition of SIGSEGV.
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gdb_exit
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gdb_spawn_with_ld_preload $libsegfault ""
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set test "gdb emits custom handler warning"
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gdb_test_multiple "" $test {
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-re "cannot be preloaded.*\r\n$gdb_prompt $" {
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# Glibc 2.22 outputs:
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# ERROR: ld.so: object 'libSegFault.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
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untested "cannot preload libSegFault.so"
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return
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}
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-re "Found custom handler.*won't be propagated.*\r\n$gdb_prompt $" {
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pass $test
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}
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}
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# "-q" should disable the warning, though.
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gdb_exit
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gdb_spawn_with_ld_preload $libsegfault "-q"
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set test "quiet suppresses custom handler warning"
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gdb_test_multiple "" $test {
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-re "^$gdb_prompt $" {
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pass $test
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}
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}
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}
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save_vars { ::INTERNAL_GDBFLAGS } {
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set ::INTERNAL_GDBFLAGS [string map {"-q" ""} $::INTERNAL_GDBFLAGS]
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test_libsegfault
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}
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