mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-27 04:52:05 +08:00
3666a04883
This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
123 lines
3.6 KiB
Plaintext
123 lines
3.6 KiB
Plaintext
# Copyright 2020-2021 Free Software Foundation, Inc.
|
|
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
# Test loading two inferiors into GDB, and running one of them twice
|
|
# in a row. GDB used to have a bug that made it so that after an
|
|
# inferior exit, the current program space was left pointing to the
|
|
# wrong inferior's pspace, causing subsequent symbol lookups to
|
|
# misbehave, including failing to load libthread_db.so. See PR
|
|
# gdb/25410.
|
|
|
|
# Build two executables, with different symbols.
|
|
|
|
set exec1 "multi-re-run-1"
|
|
set srcfile1 multi-re-run-1.c
|
|
set binfile1 [standard_output_file ${exec1}]
|
|
|
|
set exec2 "multi-re-run-2"
|
|
set srcfile2 multi-re-run-2.c
|
|
set binfile2 [standard_output_file ${exec2}]
|
|
|
|
with_test_prefix "exec1" {
|
|
if { [prepare_for_testing "failed to prepare" ${exec1} "${srcfile1}" \
|
|
[list pthreads debug]] } {
|
|
return -1
|
|
}
|
|
}
|
|
|
|
with_test_prefix "exec2" {
|
|
if { [prepare_for_testing "failed to prepare" ${exec2} "${srcfile2}" \
|
|
[list pthreads debug]] } {
|
|
return -1
|
|
}
|
|
}
|
|
|
|
# Start two inferiors, leave one stopped, and run the other a couple
|
|
# times. RE_RUN_INF is the inferior that is re-run.
|
|
|
|
proc test_re_run {re_run_inf} {
|
|
global binfile1 binfile2
|
|
global inferior_exited_re
|
|
global gdb_prompt
|
|
global last_loaded_file
|
|
|
|
clean_restart ${binfile1}
|
|
|
|
delete_breakpoints
|
|
|
|
# Start another inferior.
|
|
gdb_test "add-inferior" "Added inferior 2.*" \
|
|
"add empty inferior 2"
|
|
gdb_test "inferior 2" "Switching to inferior 2.*" \
|
|
"switch to inferior 2"
|
|
gdb_load ${binfile2}
|
|
|
|
if {$re_run_inf == 1} {
|
|
set steady_inf 2
|
|
set steady_binfile $binfile2
|
|
set re_run_binfile $binfile1
|
|
} else {
|
|
set steady_inf 1
|
|
set steady_binfile $binfile1
|
|
set re_run_binfile $binfile2
|
|
}
|
|
|
|
gdb_test "inferior $steady_inf" "Switching to inferior $steady_inf.*" \
|
|
"switch to steady inferior"
|
|
set last_loaded_file $steady_binfile
|
|
|
|
# Run the steady inferior to a breakpoint, and let it stay stopped
|
|
# there.
|
|
if ![runto all_started message] then {
|
|
untested "setup failed"
|
|
return 0
|
|
}
|
|
|
|
gdb_test "inferior $re_run_inf" "Switching to inferior $re_run_inf.*" \
|
|
"switch to re-run inferior"
|
|
set last_loaded_file $re_run_binfile
|
|
|
|
# Now run the RE_RUN_INF inferior a couple times. GDB used to
|
|
# have a bug that caused the second run to fail to load
|
|
# libthread_db.so.
|
|
foreach_with_prefix iter {1 2} {
|
|
delete_breakpoints
|
|
|
|
if ![runto all_started message] {
|
|
return 0
|
|
}
|
|
|
|
# If a thread_stratum target fails to load, then TLS debugging
|
|
# fails too.
|
|
gdb_test "print tls_var" " = 1"
|
|
|
|
gdb_continue_to_end "" continue 1
|
|
|
|
# In the original bug, after an inferior exit, GDB would leave
|
|
# the current program space pointing to the wrong inferior's
|
|
# pspace, and thus the wrong symbols were visible.
|
|
if {$re_run_inf == 1} {
|
|
gdb_test "print re_run_var_1" " = 1"
|
|
} else {
|
|
gdb_test "print re_run_var_2" " = 2"
|
|
}
|
|
}
|
|
}
|
|
|
|
# For completeness, test re-running either inferior 1 or inferior 2.
|
|
foreach_with_prefix re_run_inf {1 2} {
|
|
test_re_run $re_run_inf
|
|
}
|