binutils-gdb/gdb/testsuite/gdb.dap/insn-bp.exp
Tom Tromey d1b72c2649 Notify Python when breakpoint symbol changes
A DAP user noticed that breakpoints set by address were never updated
to show their location after the DAP launch request.  It turns out
that gdb does not emit the breakpoint-modified event when this sort of
breakpoint is updated.

This patch changes gdb to notify the breakpoint-modified observer when
a breakpoint location's symbol changes.  This in turn causes the DAP
event to be emitted.

Reviewed-by: Keith Seitz <keiths@redhat.com>
2024-08-14 10:08:58 -06:00

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# Copyright 2024 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 instruction breakpoint resolution.
require allow_dap_tests
load_lib dap-support.exp
standard_testfile basic-dap.c
if {[build_executable ${testfile}.exp $testfile $srcfile] == -1} {
return
}
# Get the address of a function. Make sure the inferior is running
# first -- on the ARM builder, the function address changed during
# startup, and we want to find the final relocated address.
clean_restart $testfile
if {![runto_main]} {
return
}
set addr [get_var_address address_breakpoint_here]
gdb_exit
if {[dap_initialize] == ""} {
return
}
set obj [dap_check_request_and_response "set breakpoint on main" \
setFunctionBreakpoints \
{o breakpoints [a [o name [s main]]]}]
set fn_bpno [dap_get_breakpoint_number $obj]
set obj [dap_check_request_and_response "set breakpoint by address" \
setInstructionBreakpoints \
[format {o breakpoints [a [o instructionReference [s %s]]]} \
$addr]]
set bpno [dap_get_breakpoint_number $obj]
set bp [lindex [dict get [lindex $obj 0] body breakpoints] 0]
gdb_assert {[dict get $bp verified] == "false"} \
"breakpoint is not verified"
dap_check_request_and_response "configurationDone" configurationDone
if {[dap_launch $testfile] == ""} {
return
}
# The event we're looking for should occur during startup, but we want
# to leave open the possibility that it occurs when waiting for the
# stopped event. So, keep both event lists around and search them
# once below.
lassign [dap_wait_for_event_and_check "inferior started" \
thread "body reason" started] \
unused objs1
lassign [dap_wait_for_event_and_check "stopped at breakpoint" stopped \
"body reason" breakpoint \
"body hitBreakpointIds" $fn_bpno] unused objs2
set found_bp_event 0
foreach obj [concat $objs1 $objs2] {
if { [dict get $obj "type"] != "event" } {
continue
}
if { [dict get $obj "event"] != "breakpoint" } {
continue
}
set body [dict get $obj "body"]
if { [dict get $body "reason"] != "changed" } {
continue
}
set breakpoint [dict get $body breakpoint]
if {[dict get $breakpoint id] == $bpno} {
gdb_assert {[dict get $breakpoint source name] == "basic-dap.c"} \
"breakpoint modification event has source"
set found_bp_event 1
}
}
gdb_assert {$found_bp_event} "found the breakpoint event"
dap_shutdown