22fd09ae99
Program received signal SIGABRT, Aborted. [...] (gdb) gcore foobar Couldn't get registers: No such process. (gdb) info threads [...] (gdb) gcore foobar Saved corefile foobar (gdb) gcore tries to access the exited thread: [Thread 0x7ffff7fce700 (LWP 6895) exited] ptrace(PTRACE_GETREGS, 6895, 0, 0x7fff18167dd0) = -1 ESRCH (No such process) Without the TRY_CATCH protection testsuite FAILs for: gcore .../gdb/testsuite/gdb.threads/gcore-thread0.test Cannot find new threads: debugger service failed (gdb) FAIL: gdb.threads/gcore-thread.exp: save a zeroed-threads corefile + core .../gdb/testsuite/gdb.threads/gcore-thread0.test ".../gdb/testsuite/gdb.threads/gcore-thread0.test" is not a core dump: File format not recognized (gdb) FAIL: gdb.threads/gcore-thread.exp: core0file: re-load generated corefile (bad file format) Maybe the TRY_CATCH could be more inside update_thread_list(). Similar update_thread_list() call is IMO missing in procfs_make_note_section() but I do not have where to verify that change. gdb/ChangeLog 2014-08-21 Jan Kratochvil <jan.kratochvil@redhat.com> * linux-tdep.c (linux_corefile_thread_callback): Ignore THREAD_EXITED. (linux_make_corefile_notes): call update_thread_list, protected against exceptions. gdb/testsuite/ChangeLog 2014-08-21 Jan Kratochvil <jan.kratochvil@redhat.com> * gdb.threads/gcore-stale-thread.c: New file. * gdb.threads/gcore-stale-thread.exp: New file.
57 lines
1.9 KiB
Text
57 lines
1.9 KiB
Text
# Copyright 2014 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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standard_testfile
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set corefile [standard_output_file ${testfile}.core]
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if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != ""} {
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return -1
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}
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clean_restart ${testfile}
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gdb_test_no_output "set non-stop on"
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if { ! [ runto_main ] } then {
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return -1
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}
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gdb_test_multiple "info threads" "threads are supported" {
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-re ".* main .*\r\n$gdb_prompt $" {
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# OK, threads are supported.
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}
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-re "\r\n$gdb_prompt $" {
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unsupported "gdb does not support threads on this target"
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return -1
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}
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}
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gdb_breakpoint ${srcfile}:[gdb_get_line_number "break-here"]
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# gdb_continue_to_breakpoint does not work as it uses "$gdb_prompt $" regex
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# which does not work due to the output: (gdb) [Thread ... exited]
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set name "continue to breakpoint: break-here"
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gdb_test_multiple "continue" $name {
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-re "Breakpoint .* (at|in) .* break-here .*\r\n$gdb_prompt " {
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pass $name
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}
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}
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gdb_gcore_cmd "$corefile" "save a corefile"
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# Do not run "info threads" before "gcore" as it could workaround the bug
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# by discarding non-current exited threads.
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gdb_test "info threads" \
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{The current thread <Thread ID 1> has terminated\. See `help thread'\.} \
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"exited thread is current due to non-stop"
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