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71 lines
2.2 KiB
Plaintext
71 lines
2.2 KiB
Plaintext
# 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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#
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# Regression test for a bug where GDB would internal error if a thread
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# runs into a breakpoint that needs stepping over, just after stepping
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# over another breakpoint, without a user visible stop in between.
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#
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standard_testfile
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if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
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return -1
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}
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if ![runto_main] then {
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fail "Can't run to main"
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return 0
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}
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# Make sure the target doesn't hide the breakpoint hits (that don't
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# cause a user visible stop) from GDB.
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gdb_test_no_output "set breakpoint condition-evaluation host"
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set up_to_nl "\[^\r\n\]+\[\r\n\]+"
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# Number of consecutive breakpoints in a row to try.
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set n_insns 3
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# Extract addresses of a few consecutive instructions.
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set test "get breakpoint addresses"
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if { [gdb_test_multiple "x /[expr $n_insns + 1]i \$pc" $test {
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-re "=> $hex${up_to_nl} ($hex)${up_to_nl} ($hex)${up_to_nl} ($hex)${up_to_nl}$gdb_prompt $" {
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for {set i 1} {$i <= $n_insns} {incr i} {
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set bp_addrs($i) $expect_out($i,string)
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}
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pass $test
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}
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}] != 0 } {
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# No use proceeding if bp_addrs wasn't set.
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return
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}
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for {set i 1} {$i <= $n_insns} {incr i} {
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with_test_prefix "insn $i" {
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gdb_test "break \*$bp_addrs($i)" \
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"Breakpoint $decimal at $bp_addrs($i): file .*" \
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"set breakpoint"
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# Give the breakpoint a condition that always fails, so that
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# the thread is immediately re-resumed.
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gdb_test_no_output "condition \$bpnum condition" \
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"set condition"
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}
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}
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set lineno [gdb_get_line_number "break here"]
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gdb_breakpoint $lineno
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gdb_continue_to_breakpoint "break here" ".*break here.*"
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