e22f8b7c8c
Switch the license of all .f and .f90 files to GPLv3.
Switch the license of all .s and .S files to GPLv3.
121 lines
3.2 KiB
Plaintext
121 lines
3.2 KiB
Plaintext
# This testcase is part of GDB, the GNU debugger.
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# Copyright 1998, 1999, 2000, 2001, 2002, 2004, 2007
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# 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 GDB's ability to restore saved registers from stack frames
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# when using the `return' command.
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#
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# This file was written by Jim Blandy <jimb@cygnus.com>, with
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# fragments borrowed from return.exp.
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if $tracelevel then {
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strace $tracelevel
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}
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set prms_id 0
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set bug_id 0
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set testfile "restore"
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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untested restore.exp
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return -1
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}
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proc restore_tests { } {
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global gdb_prompt
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if { ! [ runto driver ] } {
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return 0
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}
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set limit 5
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# For each caller function,
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# call each of the callee functions,
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# force a return from the callee, and
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# make sure that the local variables still have the right values.
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for {set c 1} {$c <= $limit} {incr c} {
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# Set a breakpoint at the next caller function.
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gdb_test "tbreak caller$c" "Breakpoint.*\[0-9\]*\\." \
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"tbreak caller$c"
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# Continue to the next caller function.
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gdb_test "continue" " caller$c prologue .*" "run to caller$c"
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# Do each callee function.
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for {set e 1} {$e <= $limit} {incr e} {
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gdb_test "tbreak callee$e" "Breakpoint.*\[0-9\]*\\." \
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"caller$c calls callee$e; tbreak callee"
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gdb_test "continue" " callee$e prologue .*/" \
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"caller$c calls callee$e; continue to callee"
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# Do a forced return from the callee.
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set test "caller$c calls callee$e; return callee now"
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gdb_test_multiple "return 0" "$test" {
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-re "Make .* return now.*y or n. $" {
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send_gdb "y\n"
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exp_continue
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}
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-re " caller$c .*$gdb_prompt $" {
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pass "$test"
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}
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}
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# Check that the values of the local variables are what
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# they should be.
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for {set var 1} {$var <= $c} {incr var} {
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set expected [expr 0x7eeb + $var]
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gdb_test "print l$var" " = $expected" \
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"caller$c calls callee$e; return restored l$var to $expected"
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}
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}
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}
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if ![gdb_skip_stdio_test "run to completion"] {
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send_gdb "continue\n"
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gdb_expect {
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-re "exiting" {
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pass "run to completion"
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}
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timeout {
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fail "(timeout) run to completion"
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}
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}
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} else {
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gdb_test "continue" "" ""
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}
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}
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# Start with a fresh gdb.
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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set timeout 30
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restore_tests
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