157 lines
4.6 KiB
Text
157 lines
4.6 KiB
Text
# Copyright 2014-2015 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 that "file" doesn't leave stale breakpoints planted in the
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# target.
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standard_testfile
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if {[build_executable "failed to prepare" $testfile $srcfile debug]} {
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return -1
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}
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# Run the test proper. INITIAL_LOAD determines whether the program is
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# initially loaded by the "file" command or by passing it to GDB on
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# the command line. ALWAYS_INSERT determines whether always-inserted
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# mode is on/off. BREAK_COMMAND is the break command being tested.
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#
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proc test_break { initial_load always_inserted break_command } {
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global srcdir subdir binfile
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global gdb_prompt hex
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global GDBFLAGS
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append prefix "$initial_load: "
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append prefix "always-inserted $always_inserted: "
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append prefix "$break_command"
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with_test_prefix "$prefix" {
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gdb_exit
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set saved_gdbflags $GDBFLAGS
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# See "used to behave differently" further below.
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if { $initial_load == "file" } {
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gdb_start
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gdb_file_cmd $binfile
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} else {
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global last_loaded_file
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# gdb_file_cmd sets this. This is what gdb_reload
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# implementations use as binary.
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set last_loaded_file $binfile
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set GDBFLAGS "$GDBFLAGS $binfile"
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gdb_start
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}
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_reload
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set GDBFLAGS $saved_gdbflags
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if ![runto_main] then {
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fail "Can't run to main"
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return
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}
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delete_breakpoints
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gdb_test_no_output "set breakpoint always-inserted $always_inserted"
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set test "$break_command foo"
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gdb_test_multiple "$break_command foo" $test {
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-re "No hardware breakpoint support in the target.*$gdb_prompt $" {
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unsupported $test
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return
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}
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-re "Hardware breakpoints used exceeds limit.*$gdb_prompt $" {
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unsupported $test
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return
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}
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-re "Cannot insert hardware breakpoint.*$gdb_prompt $" {
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unsupported $test
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return
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}
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-re ".*reakpoint .* at .*$gdb_prompt $" {
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pass $test
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}
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}
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# The breakpoint shouldn't be pending now.
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gdb_test "info break" "y.*$hex.*in foo at.*" \
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"breakpoint is not pending"
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# Remove the file, while the breakpoint above is inserted in a
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# function in the main objfile. GDB used to have a bug where
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# it would mark the breakpoint as uninserted, but actually
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# would leave it inserted in the target.
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set test "file"
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gdb_test_multiple "file" $test {
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-re "Are you sure you want to change the file. .*y or n. $" {
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send_gdb "y\n"
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exp_continue
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}
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-re "Discard symbol table from `.*'? .y or n. $" {
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send_gdb "y\n"
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exp_continue
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}
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-re "No symbol file now\\.\r\n$gdb_prompt $" {
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pass $test
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}
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}
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# This test used to behave differently depending on whether
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# the program was first loaded through "file PROGRAM" or "gdb
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# PROGRAM".
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set ws "\[ \t\]"
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gdb_test "info break" "breakpoint${ws}+keep${ws}+n${ws}+$hex${ws}*" \
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"breakpoint is disabled"
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# Now delete the breakpoint from GDB's tables, to make sure
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# GDB doesn't reinsert it, masking the bug (with the bug, on
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# re-insert, GDB would fill the shadow buffer with a
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# breakpoint instruction). Avoid delete_breakpoints as that
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# doesn't record a pass/fail.
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gdb_test "delete" "" "delete all breakpoints" \
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"Delete all breakpoints.*y or n.*$" "y"
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# Re-add symbols back.
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set test "file \$binfile"
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gdb_test_multiple "file $binfile" $test {
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-re "Are you sure you want to change the file. .*y or n. $" {
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send_gdb "y\n"
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exp_continue
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}
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-re "Reading symbols from.*done.*$gdb_prompt $" {
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pass $test
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}
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}
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# Run to another function now. With the bug, GDB would trip
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# on a spurious trap at foo.
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gdb_test "b bar" ".*reakpoint .* at .*"
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gdb_test "continue" "Breakpoint .*, bar .*"
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}
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}
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foreach initial_load { "cmdline" "file" } {
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# While it doesn't trigger the original bug this is a regression
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# test for, test with breakpoint always-inserted off for extra
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# coverage.
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foreach always_inserted { "off" "on" } {
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test_break $initial_load $always_inserted "break"
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if {![skip_hw_breakpoint_tests]} {
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test_break $initial_load $always_inserted "hbreak"
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}
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}
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}
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