1# Copyright 2008-2020 Free Software Foundation, Inc.
2
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.
7#
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.
12#
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/>.
15
16#
17# Test support for stepping over longjmp.
18#
19
20
21standard_testfile .c
22
23if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
24     untested "failed to compile"
25     return -1
26}
27
28if [get_compiler_info] {
29    return -1
30}
31
32clean_restart ${binfile}
33
34if ![runto_main] then {
35   fail "can't run to main"
36   return 0
37}
38
39set bp_miss_step_1 [gdb_get_line_number "miss_step_1"]
40set bp_miss_step_2 [gdb_get_line_number "miss_step_2"]
41
42set bp_start_test_1 [gdb_get_line_number "patt1"]
43set bp_start_test_2 [gdb_get_line_number "patt2"]
44set bp_start_test_3 [gdb_get_line_number "patt3"]
45
46#
47# Pattern 1 - simple longjmp.
48#
49
50delete_breakpoints
51
52gdb_test "break $bp_start_test_1" \
53    "Breakpoint.*at.* file .*$srcfile, line.*$bp_start_test_1.*" \
54    "breakpoint at pattern 1 start"
55gdb_test "continue" "patt1.*" "continue to breakpoint at pattern 1 start"
56
57# set safe-net break
58gdb_test "break $bp_miss_step_1" \
59    "Breakpoint.*at.* file .*$srcfile, line.*$bp_miss_step_1.*" \
60    "breakpoint at miss_step_1"
61
62gdb_test "next" "longjmps\\+\\+;.*" "next over setjmp (1)"
63gdb_test "next" "longjmp \\(env, 1\\);.*" "next to longjmp (1)"
64
65set msg "next over longjmp(1)"
66gdb_test_multiple "next" $msg {
67    -re ".*patt1.*$gdb_prompt $" {
68	pass $msg
69	gdb_test "next" "resumes\\+\\+.*" "next into else block (1)"
70	gdb_test "next" "miss_step_1.*" "next into safety net (1)"
71    }
72    -re "miss_step_1.*$gdb_prompt $" {
73	fail $msg
74    }
75}
76
77#
78# Pattern 2 - longjmp from an inner function.
79#
80
81delete_breakpoints
82
83gdb_test "break $bp_start_test_2" \
84    "Breakpoint.*at.* file .*$srcfile, line.*$bp_start_test_2.*" \
85    "breakpoint at pattern 2 start"
86gdb_test "continue" "patt2.*" "continue to breakpoint at pattern 2 start"
87
88# set safe-net break
89gdb_test "break $bp_miss_step_2" \
90    "Breakpoint.*at.* file .*$srcfile, line.*$bp_miss_step_2.*" \
91    "breakpoint at miss_step_2"
92
93gdb_test "next" "call_longjmp.*" "next over setjmp (2)"
94
95set msg "next over call_longjmp (2)"
96gdb_test_multiple "next" $msg {
97    -re ".*patt2.*$gdb_prompt $" {
98	pass $msg
99
100	gdb_test "next" "resumes\\+\\+.*" "next into else block (2)"
101	gdb_test "next" "miss_step_2.*" "next into safety net (2)"
102    }
103    -re "miss_step_2.*$gdb_prompt $" {
104	fail $msg
105    }
106}
107
108#
109# Pattern 3 - setjmp/longjmp inside stepped-over function.
110#
111
112delete_breakpoints
113
114gdb_test "break $bp_start_test_3" \
115    "Breakpoint.*at.* file .*$srcfile, line.*$bp_start_test_3.*" \
116    "breakpoint at pattern 3 start"
117gdb_test "continue" "patt3.*" "continue to breakpoint at pattern 3 start"
118
119gdb_test "next" "longjmp caught.*" "next over patt3"
120