1 # Copyright 2007-2022 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>.
16 # Please email any bugs, comments, and/or additions to this file to:
19 # This file is part of the gdb testsuite.
21 # Unwinding of DW_CFA_GNU_negative_offset_extended test program.
26 if {![is_x86_like_target]} {
27 verbose "Skipping i386 unwinder tests."
31 set testfile "i386-gnu-cfi"
32 set srcfilec ${testfile}.c
33 set srcfileasm ${testfile}-asm.S
34 set binfile [standard_output_file ${testfile}]
36 # some targets have leading underscores on assembly symbols.
37 set additional_flags [gdb_target_symbol_prefix_flags]
39 if { [gdb_compile "${srcdir}/${subdir}/${srcfilec} ${srcdir}/${subdir}/${srcfileasm}" "${binfile}" executable [list debug $additional_flags]] != "" } {
40 untested "failed to compile"
48 gdb_reinitialize_dir $srcdir/$subdir
51 # We should stop in abort(3).
55 gdb_test_multiple {} "continue to abort()" {
56 -re ".*Program received signal SIGABRT,.*$gdb_prompt $" {
57 pass "continue to abort()"
61 # Verify that the backtrace works (it would crash before). Use the backtrace
62 # output to find the frame number for function "gate".
67 "#($decimal) *$hex in gate \[^\r\n\]*" \
68 "#$decimal *$hex in main \\(\\) at .*${testfile}.c.*"]
69 gdb_test_multiple "backtrace" "" {
70 -re -wrap $backtrace_re {
71 set gate_n $expect_out(1,string)
75 if { $gate_n == "" } {
79 # Check we see the inserted `DW_CFA_GNU_negative_offset_extended' CFI.
80 # We see there the original CFI-stored filename `gate.c'.
82 gdb_test "frame $gate_n" \
83 "gate \\(\[^()\]*\\) at .*gate.c.*" \
84 "shift up to the modified frame"
86 gdb_test_multiple "info frame" "existence of the CFI inserted register" {
87 -re "Stack level $gate_n, frame at (0x\[0-9a-f\]+):.*Saved registers:.* ecx at (0x\[0-9a-f\]+),.*" {
88 pass "existence of the CFI inserted register"
89 if {[string compare $expect_out(1,string) $expect_out(2,string)]} {
90 fail "value of the CFI inserted register"
92 pass "value of the CFI inserted register"