1#   Copyright 1997, 1998, 1999, 2000, 2004, 2007, 2008, 2009, 2010, 2011
2#   Free Software Foundation, Inc.
3
4# This program is free software; you can redistribute it and/or modify
5# it under the terms of the GNU General Public License as published by
6# the Free Software Foundation; either version 3 of the License, or
7# (at your option) any later version.
8#
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY; without even the implied warranty of
11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12# GNU General Public License for more details.
13#
14# You should have received a copy of the GNU General Public License
15# along with this program.  If not, see <http://www.gnu.org/licenses/>.
16
17# file to test calls into shared libraries
18# the source files for this test are:
19#
20# shmain.c
21# shr1.c (shared lib)
22# shr2.c (shared lib)
23# ss.h (header for shr2.c)
24#
25# file written by Elena Zannoni: elz@ch.apollo.com
26#
27
28#debug shmain
29#prop lib shr1.sl
30#prop lib shr2.sl
31
32if $tracelevel then {
33        strace $tracelevel
34}
35
36
37if {[skip_shlib_tests]} {
38    return 0
39}
40
41set testfile "shmain"
42set libfile1 "shr1"
43set libfile2 "shr2"
44set srcfile  ${srcdir}/${subdir}/${testfile}.c
45set lib1src  ${srcdir}/${subdir}/${libfile1}.c
46set lib2src  ${srcdir}/${subdir}/${libfile2}.c
47set lib1     ${objdir}/${subdir}/${libfile1}.sl
48set lib2     ${objdir}/${subdir}/${libfile2}.sl
49set binfile  ${objdir}/${subdir}/${testfile}
50
51set lib_opts "debug"
52set exec_opts [list debug shlib=${lib1} shlib=${lib2}]
53
54if [get_compiler_info ${binfile}] {
55    return -1
56}
57
58if { [gdb_compile_shlib ${lib1src} ${lib1} $lib_opts] != ""
59     || [gdb_compile_shlib ${lib2src} ${lib2} $lib_opts] != ""
60     || [gdb_compile ${srcfile} ${binfile} executable $exec_opts] != ""} {
61    untested "Could not compile $lib1, $lib2, or $srcfile."
62    return -1
63}
64
65# Start with a fresh gdb.
66
67gdb_exit
68gdb_start
69gdb_reinitialize_dir $srcdir/$subdir
70gdb_load ${binfile}
71gdb_load_shlibs $lib1 $lib2
72
73gdb_test_no_output "set print sevenbit-strings"
74gdb_test_no_output "set print address off"
75gdb_test_no_output "set width 0"
76
77
78if ![runto_main] then {
79        perror "C function calling tests suppressed"
80}
81
82
83#step -over
84
85gdb_test "next" "g = shr1\\(g\\);" "next to shr1"
86
87#print g
88
89gdb_test "print g" "\[0-9\]* = 1" "print g"
90
91#step -over
92if ![gdb_skip_stdio_test "next over shr1"] {
93    gdb_test "next" \
94	"address of sgs is $hex.*g = shr2\\(g\\);" \
95	"next over shr1"
96} else {
97    gdb_test "next" ".*" ""
98}
99
100
101#print g
102gdb_test "print g" "\[0-9\]* = 2" "print g"
103
104#print shr1(1)
105if ![gdb_skip_stdio_test "print shr1(1)"] {
106    gdb_test "print shr1(1)" \
107	"address of sgs is $hex.*\[0-9\]* = 2" \
108	"print shr1(1)"
109}
110
111#print shr1(g)
112if ![gdb_skip_stdio_test "print shr1(g)"] {
113    gdb_test "print shr1(g)" \
114	"address of sgs is $hex.*\[0-9\]* = 4" \
115	"print shr1(g)"
116}
117
118#break shr2
119#go
120gdb_test "break shr2" \
121    "Breakpoint.*file.*shr2.c, line.*" \
122    "breakpoint function shr2"
123
124gdb_test "continue" \
125	"Continuing\\..*Breakpoint \[0-9\]+, shr2 \\(.*\\) at.*shr2\\.c:7.*7.*return 2.x;" \
126	"run until breakpoint set at a function"
127
128
129#print shr1(1)
130if ![gdb_skip_stdio_test "print shr1(1) 2nd time"] {
131    gdb_test "print shr1(1)" \
132	"address of sgs is $hex.*\[0-9\]* = 2" \
133	"print shr1(1) 2nd time"
134}
135
136#print mainshr1(1)
137gdb_test "print mainshr1(1)" "\[0-9\]* = 2" \
138    "print mainshr1(1) from shlib func"
139
140#step -return
141# A step at this point will either take us entirely out of
142# the function or into the function's epilogue.  The exact
143# behavior will differ depending upon upon whether or not
144# the compiler emits line number information for the epilogue.
145gdb_test_multiple "step" "step out of shr2 to main" {
146    -re "main \\(\\) at.*g = mainshr1\\(g\\);.*$gdb_prompt $" {
147	pass "step out of shr2 to main"
148    }
149    -re ".*\\\}.*$gdb_prompt $" {
150	pass "step out of shr2 to main (stopped in shr2 epilogue)"
151	gdb_test "step" \
152	    "main \\(\\) at.*g = mainshr1\\(g\\);" \
153	    "step out of shr2 epilogue to main"
154    }
155}
156
157#print mainshr1(1)
158gdb_test "print mainshr1(1)" "\[0-9\]* = 2" "print mainshr1(1)"
159
160#step
161gdb_test "step" "mainshr1 \\(g=4\\) at.*return 2.g;" \
162    "step into mainshr1"
163
164# Start with a fresh gdb.
165
166gdb_exit
167gdb_start
168gdb_reinitialize_dir $srcdir/$subdir
169gdb_load ${binfile}
170gdb_test_no_output "set print sevenbit-strings"
171gdb_test_no_output "set print address off"
172gdb_test_no_output "set width 0"
173
174
175# PR's 16495, 18213
176# test that we can re-set breakpoints in shared libraries
177gdb_breakpoint "shr1" "allow-pending"
178
179# FIXME: should not send "run" explicitly.  Non-portable.
180
181if ![is_remote target] {
182  gdb_test "run" "Starting program:.*Breakpoint .,.*" \
183	"run to bp in shared library"
184
185  gdb_continue_to_end "" continue 1
186
187  gdb_test "run" "Starting program:.*Breakpoint .,.*" \
188	"re-run to bp in shared library (PR's 16495, 18213)"
189
190  gdb_continue_to_end "" continue 1
191}
192
193return 0
194