111 lines
3.2 KiB
Text
111 lines
3.2 KiB
Text
# Copyright (C) 1998 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 2 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, write to the Free Software
|
|
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
# Please email any bugs, comments, and/or additions to this file to:
|
|
# bug-gdb@prep.ai.mit.edu
|
|
|
|
# Test GDB's ability to restore saved registers from stack frames
|
|
# when using the `return' command.
|
|
#
|
|
# This file was written by Jim Blandy <jimb@cygnus.com>, with
|
|
# fragments borrowed from return.exp.
|
|
|
|
if $tracelevel then {
|
|
strace $tracelevel
|
|
}
|
|
|
|
set prms_id 0
|
|
set bug_id 0
|
|
|
|
set testfile "restore"
|
|
set srcfile ${testfile}.c
|
|
set binfile ${objdir}/${subdir}/${testfile}
|
|
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
|
|
gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
|
|
}
|
|
|
|
proc restore_tests { } {
|
|
global gdb_prompt
|
|
|
|
if { ! [ runto driver ] } then { return 0 }
|
|
|
|
set limit 5
|
|
|
|
# Set breakpoints at each of the `caller' functions.
|
|
for {set c 1} {$c <= $limit} {incr c} {
|
|
gdb_test "break caller$c" "Breakpoint.*\[0-9\]*\\." "break caller$c"
|
|
}
|
|
|
|
# Set breakpoints at each of the `callee' functions.
|
|
for {set c 1} {$c <= $limit} {incr c} {
|
|
gdb_test "break callee$c" "Breakpoint.*\[0-9\]*\\." "break caller$c"
|
|
}
|
|
|
|
# For each caller function,
|
|
# call each of the callee functions,
|
|
# force a return from the callee, and
|
|
# make sure that the local variables still have the right values.
|
|
for {set c 1} {$c <= $limit} {incr c} {
|
|
|
|
# Continue to the next caller function.
|
|
gdb_test "continue" ".*/\\* caller$c \\*/" "run to caller$c"
|
|
|
|
# Do each callee function.
|
|
for {set e 1} {$e <= $limit} {incr e} {
|
|
gdb_test " continue" ".*/\\* callee$e \\*/" "run to callee$e"
|
|
|
|
# Do a forced return from the callee.
|
|
send_gdb "return 0\n"
|
|
gdb_expect {
|
|
-re "Make .* return now.*y or n. $" {
|
|
send_gdb "y\n"
|
|
exp_continue
|
|
}
|
|
-re "$gdb_prompt $" { }
|
|
}
|
|
|
|
# Check that the values of the local variables are what
|
|
# they should be.
|
|
for {set var 1} {$var <= $c} {incr var} {
|
|
set expected [expr 0x7eeb + $var]
|
|
gdb_test "print l$var" " = $expected" \
|
|
"caller$c called callee$e; variable l$var restored"
|
|
}
|
|
}
|
|
}
|
|
|
|
send_gdb "continue\n"
|
|
|
|
gdb_expect {
|
|
-re "exiting" {
|
|
pass "run to completion"
|
|
}
|
|
timeout {
|
|
fail "(timeout) run to completion"
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
# Start with a fresh gdb.
|
|
|
|
gdb_exit
|
|
gdb_start
|
|
gdb_reinitialize_dir $srcdir/$subdir
|
|
gdb_load ${binfile}
|
|
|
|
set timeout 30
|
|
restore_tests
|