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f0ae7030f0
When running test-case gdb.base/vfork-follow-parent.exp, I run into:
...
ERROR: tcl error sourcing gdb/testsuite/gdb.base/vfork-follow-parent.exp.
ERROR: error copying "vforked-prog": no such file or directory
while executing
"file copy -force $fromfile $tofile"
(procedure "gdb_remote_download" line 29)
invoked from within
"gdb_remote_download target $binfile3"
...
Fix this by:
- making the copy-to-remote conditional on is_remote target, and
- allowing gdb_remote_download to find $binfile3 by using
standard_output_file.
Also remove unused variable remote_exec_prog.
Tested on x86_64-linux.
119 lines
4.1 KiB
Plaintext
119 lines
4.1 KiB
Plaintext
# Copyright 2021-2023 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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# Test running into vfork while "detach-on-fork" is off and "follow-fork-mode"
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# is parent. This shows a "Can not resume the parent process..." message. If
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# the user wants to resume execution, they have to use either "set
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# schedule-multiple on" or "set detach-on-fork on". Test these two resolution
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# methods.
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standard_testfile .c vforked-prog.c
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set binfile ${testfile}-exit
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set binfile2 ${testfile}-exec
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set binfile3 vforked-prog
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if { [build_executable "compile $binfile3" $binfile3 $srcfile2] } {
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untested "failed to compile third test binary"
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return -1
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}
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if { [is_remote target] } {
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gdb_remote_download target [standard_output_file $binfile3]
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}
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set opts [list debug additional_flags=-DTEST_EXIT]
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if { [build_executable "compile ${binfile}" ${binfile} ${srcfile} ${opts}] } {
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untested "failed to compile first test binary"
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return
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}
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set opts [list debug additional_flags=-DTEST_EXEC]
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if { [build_executable "compile ${binfile2}" ${binfile2} ${srcfile} ${opts}] } {
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untested "failed to compile second test binary"
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return
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}
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# Test running to the "Can not resume the parent..." message. Then, resolve
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# the situation using the method in RESOLUTION_METHOD, either "detach-on-fork"
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# or "schedule-multiple" (the two alternatives the message suggests to the
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# user).
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proc do_test { exec_file resolution_method target_non_stop non_stop } {
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save_vars { ::GDBFLAGS } {
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append ::GDBFLAGS " -ex \"maint set target-non-stop ${target_non_stop}\""
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append ::GDBFLAGS " -ex \"set non-stop ${non_stop}\""
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clean_restart $exec_file
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}
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gdb_test_no_output "set detach-on-fork off"
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if { ![runto_main] } {
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return
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}
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# Delete the breakpoint on main so we don't bit the breakpoint in
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# the case that the vfork child performs an exec.
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delete_breakpoints
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gdb_test "break break_parent"
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gdb_test "continue" \
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"Can not resume the parent process over vfork .*" \
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"continue to vfork"
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# Try to continue again from there, expecting the same message. It
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# exercises a different code path in GDB.
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gdb_test "continue" \
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"Can not resume the parent process over vfork .*" \
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"try to continue from vfork"
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# Unblock the execution using the specified resolution method.
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if { $resolution_method == "detach-on-fork" } {
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# Make GDB detach the child.
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gdb_test "set detach-on-fork on"
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gdb_test "print unblock_parent = 1" " = 1"
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} elseif { $resolution_method == "schedule-multiple" } {
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# Make GDB resume both inferiors. The parent is blocked while the
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# children executes, so the continue will make the child reach the
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# end.
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gdb_test "set schedule-multiple on"
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gdb_test "continue" "$::inferior_exited_re normally.*" \
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"continue to end of inferior 2"
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gdb_test "inferior 1" ".*Switching to inferior 1.*"
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gdb_test "print unblock_parent = 1" " = 1"
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} else {
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error "invalid resolution method: $resolution_method"
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}
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# Continue from the vfork call to the breakpoint.
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gdb_test "continue" "Breakpoint $::decimal, break_parent .*" \
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"continue to break_parent"
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}
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foreach_with_prefix exec_file [list $binfile $binfile2] {
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foreach_with_prefix target-non-stop {on off} {
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# This test was written assuming non-stop mode is off.
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foreach_with_prefix non-stop {off} {
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if {!${target-non-stop} && ${non-stop}} {
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continue
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}
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foreach_with_prefix resolution_method {detach-on-fork schedule-multiple} {
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do_test $exec_file $resolution_method ${target-non-stop} ${non-stop}
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}
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}
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}
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}
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