e58b0e63bb
* gdbthread.h (struct thread_info): New `pending_follow' field. * thread.c (new_thread): New function. (add_thread_silent): Use it. * breakpoint.c (internal_breakpoint_number): New global, moved from inside... (create_internal_breakpoint): ... this. (clone_momentary_breakpoint): New. * breakpoint.h (clone_momentary_breakpoint): Declare. * infrun.c (nullify_last_target_wait_ptid): Move declaration higher. (pending_follow): Delete. (follow_fork): Handle pending follow fork event here. Moved the preserving of thread stepping state here. (resume): Don't handle pending follow fork events here. Only install the inferior's terminal modes if we're about to resume it. (proceed): Handle possible pending follow fork events here. (init_wait_for_inferior): No need to clear pending_follow anymore, it's gone. (handle_inferior_event): Adjust to per-thread `pending_follow'. Call `follow_fork' to handle following the fork. If the follow-fork is cancelled, stop stepping. * linux-nat.c (linux_child_follow_fork): Adjust to per-thread `pending_follow' events. Remove code that handled preserving the thread stepping state. * inf-ptrace.c (inf_ptrace_follow_fork): Ditto. * inf-ttrace.c (inf_ttrace_follow_fork): Ditto. gdb/testsuite/ * gdb.threads/fork-thread-pending.c: New. * gdb.threads/fork-thread-pending.exp: New.
128 lines
3.5 KiB
Text
128 lines
3.5 KiB
Text
# Copyright (C) 2009 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/>.
|
|
|
|
# There's no support for `set follow-fork-mode' in the remote
|
|
# protocol.
|
|
if { [is_remote target] } {
|
|
return 0
|
|
}
|
|
|
|
# Only GNU/Linux is known to support `set follow-fork-mode child'.
|
|
#
|
|
if { ! [istarget "*-*-linux*"] } {
|
|
return 0
|
|
}
|
|
|
|
set testfile fork-thread-pending
|
|
set srcfile ${testfile}.c
|
|
set binfile ${objdir}/${subdir}/${testfile}
|
|
|
|
if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
|
|
return -1
|
|
}
|
|
|
|
gdb_exit
|
|
gdb_start
|
|
gdb_reinitialize_dir $srcdir/$subdir
|
|
|
|
gdb_load ${binfile}
|
|
if ![runto_main] then {
|
|
fail "Can't run to main"
|
|
return 0
|
|
}
|
|
|
|
gdb_test "set follow-fork-mode child" "" "1, set follow-fork-mode child"
|
|
gdb_test "catch fork" "Catchpoint \[0-9\]* \\(fork\\)" "1, insert fork catchpoint"
|
|
gdb_breakpoint "start" "" "1, set breakpoint at start"
|
|
|
|
gdb_test "continue" "Catchpoint.*" "1, get to the fork event"
|
|
|
|
gdb_test "info threads" " Thread .* Thread .* Thread .* Thread .*" "1, multiple threads found"
|
|
|
|
gdb_test "thread 2" "" "1, switched away from event thread"
|
|
|
|
gdb_test "continue" "Not resuming.*" "1, refused to resume"
|
|
|
|
set test "1, followed to the child, found one thread"
|
|
gdb_test_multiple "info threads" "metest" {
|
|
-re " Thread .* Thread .*$gdb_prompt $" {
|
|
fail "$test"
|
|
}
|
|
-re " Thread .*$gdb_prompt $" {
|
|
pass "$test"
|
|
}
|
|
-re "$gdb_prompt $" {
|
|
fail "$test (unknown output)"
|
|
}
|
|
timeout {
|
|
fail "$test (timeout)"
|
|
}
|
|
}
|
|
|
|
gdb_test "continue" "Breakpoint 3, start.*" "1, get to the spawned thread in fork child"
|
|
|
|
set test "1, followed to the child, found two threads"
|
|
gdb_test_multiple "info threads" "$test" {
|
|
-re " Thread .* Thread .* Thread .*$gdb_prompt $" {
|
|
fail "$test"
|
|
}
|
|
-re " Thread .* Thread .*$gdb_prompt $" {
|
|
pass "$test"
|
|
}
|
|
-re "$gdb_prompt $" {
|
|
fail "$test (unknown output)"
|
|
}
|
|
timeout {
|
|
fail "$test (timeout)"
|
|
}
|
|
}
|
|
|
|
# Start over, but this time, don't switch away from the fork event thread.
|
|
|
|
gdb_exit
|
|
gdb_start
|
|
gdb_reinitialize_dir $srcdir/$subdir
|
|
|
|
gdb_load ${binfile}
|
|
if ![runto_main] then {
|
|
fail "Can't run to main"
|
|
return 0
|
|
}
|
|
|
|
gdb_test "set follow-fork-mode child" "" "2, set follow-fork-mode child"
|
|
gdb_test "catch fork" "Catchpoint \[0-9\]* \\(fork\\)" "2, insert fork catchpoint"
|
|
gdb_breakpoint "start"
|
|
|
|
gdb_test "continue" "Catchpoint.*" "2, get to the fork event"
|
|
|
|
gdb_test "info threads" " Thread .* Thread .* Thread .* Thread .*" "2, multiple threads found"
|
|
|
|
gdb_test "continue" "Breakpoint 3, start.*" "2, get to the spawned thread in fork child"
|
|
|
|
set test "2, followed to the child, found two threads"
|
|
gdb_test_multiple "info threads" "$test" {
|
|
-re " Thread .* Thread .* Thread .*$gdb_prompt $" {
|
|
fail "$test"
|
|
}
|
|
-re " Thread .* Thread .*$gdb_prompt $" {
|
|
pass "$test"
|
|
}
|
|
-re "$gdb_prompt $" {
|
|
fail "$test (unknown output)"
|
|
}
|
|
timeout {
|
|
fail "$test (timeout)"
|
|
}
|
|
}
|