Commit | Line | Data |
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029d2200 AC |
1 | # This testcase is part of GDB, the GNU debugger. |
2 | ||
4c38e0a4 | 3 | # Copyright 1998, 1999, 2000, 2001, 2002, 2004, 2007, 2008, 2009, 2010 |
6aba47ca | 4 | # Free Software Foundation, Inc. |
c906108c SS |
5 | |
6 | # This program is free software; you can redistribute it and/or modify | |
7 | # it under the terms of the GNU General Public License as published by | |
e22f8b7c | 8 | # the Free Software Foundation; either version 3 of the License, or |
c906108c | 9 | # (at your option) any later version. |
e22f8b7c | 10 | # |
c906108c SS |
11 | # This program is distributed in the hope that it will be useful, |
12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | # GNU General Public License for more details. | |
e22f8b7c | 15 | # |
c906108c | 16 | # You should have received a copy of the GNU General Public License |
e22f8b7c | 17 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
c906108c | 18 | |
c906108c SS |
19 | # Test GDB's ability to restore saved registers from stack frames |
20 | # when using the `return' command. | |
21 | # | |
22 | # This file was written by Jim Blandy <jimb@cygnus.com>, with | |
23 | # fragments borrowed from return.exp. | |
24 | ||
25 | if $tracelevel then { | |
029d2200 | 26 | strace $tracelevel |
c906108c SS |
27 | } |
28 | ||
c906108c SS |
29 | |
30 | set testfile "restore" | |
31 | set srcfile ${testfile}.c | |
32 | set binfile ${objdir}/${subdir}/${testfile} | |
33 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { | |
b60f0898 JB |
34 | untested restore.exp |
35 | return -1 | |
c906108c SS |
36 | } |
37 | ||
38 | proc restore_tests { } { | |
39 | global gdb_prompt | |
40 | ||
029d2200 AC |
41 | if { ! [ runto driver ] } { |
42 | return 0 | |
43 | } | |
c906108c SS |
44 | |
45 | set limit 5 | |
46 | ||
c906108c SS |
47 | # For each caller function, |
48 | # call each of the callee functions, | |
49 | # force a return from the callee, and | |
50 | # make sure that the local variables still have the right values. | |
029d2200 | 51 | |
c906108c SS |
52 | for {set c 1} {$c <= $limit} {incr c} { |
53 | ||
1b8947f0 | 54 | # Set a breakpoint at the next caller function. |
18ac113b | 55 | gdb_test "tbreak caller$c" "Temporary breakpoint.*\[0-9\]*\\." \ |
029d2200 | 56 | "tbreak caller$c" |
1b8947f0 | 57 | |
c906108c | 58 | # Continue to the next caller function. |
029d2200 | 59 | gdb_test "continue" " caller$c prologue .*" "run to caller$c" |
c906108c SS |
60 | |
61 | # Do each callee function. | |
62 | for {set e 1} {$e <= $limit} {incr e} { | |
1b8947f0 | 63 | |
18ac113b | 64 | gdb_test "tbreak callee$e" "Temporary breakpoint.*\[0-9\]*\\." \ |
029d2200 | 65 | "caller$c calls callee$e; tbreak callee" |
1b8947f0 | 66 | |
029d2200 AC |
67 | gdb_test "continue" " callee$e prologue .*/" \ |
68 | "caller$c calls callee$e; continue to callee" | |
69 | ||
c906108c | 70 | # Do a forced return from the callee. |
029d2200 | 71 | set test "caller$c calls callee$e; return callee now" |
02746bbc MS |
72 | |
73 | gdb_test "return 0" \ | |
74 | " caller$c .*" \ | |
75 | "$test" \ | |
76 | "Make .* return now.*y or n. $" \ | |
77 | "y" | |
c906108c SS |
78 | |
79 | # Check that the values of the local variables are what | |
80 | # they should be. | |
81 | for {set var 1} {$var <= $c} {incr var} { | |
d4f3574e | 82 | set expected [expr 0x7eeb + $var] |
c906108c | 83 | gdb_test "print l$var" " = $expected" \ |
029d2200 | 84 | "caller$c calls callee$e; return restored l$var to $expected" |
c906108c SS |
85 | } |
86 | } | |
87 | } | |
88 | ||
958a4e4c MS |
89 | if ![gdb_skip_stdio_test "run to completion"] { |
90 | send_gdb "continue\n" | |
91 | ||
92 | gdb_expect { | |
93 | -re "exiting" { | |
94 | pass "run to completion" | |
95 | } | |
96 | timeout { | |
97 | fail "(timeout) run to completion" | |
98 | } | |
99 | } | |
100 | } else { | |
de7ff789 | 101 | gdb_test "continue" ".*" "" |
c906108c SS |
102 | } |
103 | } | |
104 | ||
105 | ||
958a4e4c | 106 | |
c906108c SS |
107 | # Start with a fresh gdb. |
108 | ||
109 | gdb_exit | |
110 | gdb_start | |
111 | gdb_reinitialize_dir $srcdir/$subdir | |
112 | gdb_load ${binfile} | |
113 | ||
97f2ed50 | 114 | set prev_timeout $timeout |
c906108c SS |
115 | set timeout 30 |
116 | restore_tests | |
97f2ed50 | 117 | set timeout $prev_timeout |