1#   Copyright 2006, 2007 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# Test setting breakpoints on shared library functions provided by more
17# than one shared library, when one of the implementations is a "weak"
18# symbol.  GDB should set a breakpoint at the first copy it finds.
19
20if {[skip_shlib_tests]} {
21    return 0
22}
23
24# These targets have shared libraries, but weak symbols are not meaningful.
25if {([istarget arm*-*-symbianelf*]
26     || [istarget *-*-mingw*]
27     || [istarget *-*-cygwin*]
28     || [istarget *-*-pe*])} {
29    return 0
30}
31
32# This test uses GCC-specific syntax.
33if [get_compiler_info not-used] {
34    return -1
35}
36
37if {![test_compiler_info "gcc-*"]} {
38    return 0
39}
40
41proc do_test { lib1opts lib2opts lib1first } {
42    global objdir srcdir subdir
43
44    set testopts ""
45    if {$lib1opts == ""} {
46	append testopts "lib1 nodebug, "
47    } else {
48	append testopts "lib1 debug, "
49    }
50    if {$lib2opts == ""} {
51	append testopts "lib2 nodebug, "
52    } else {
53	append testopts "lib2 debug, "
54    }
55    if {$lib1first} {
56	append testopts "lib1 first"
57    } else {
58	append testopts "lib2 first"
59    }
60
61    set testfile "solib-weak"
62    set srcfile ${testfile}.c
63    set binfile ${objdir}/${subdir}/${testfile}
64
65    set libfile1 "weaklib1"
66    set libfile2 "weaklib2"
67    set lib1src ${srcdir}/${subdir}/${libfile1}.c
68    set lib2src ${srcdir}/${subdir}/${libfile2}.c
69    set lib1 ${objdir}/${subdir}/${libfile1}.sl
70    set lib2 ${objdir}/${subdir}/${libfile2}.sl
71
72    if $lib1first {
73	set exec_opts [list debug shlib=${lib1} shlib=${lib2}]
74	set expected_file ${libfile1}
75    } else {
76	set exec_opts [list debug shlib=${lib2} shlib=${lib1}]
77	set expected_file ${libfile2}
78    }
79
80    if { [gdb_compile_shlib ${lib1src} ${lib1} ${lib1opts}] != ""
81	 || [gdb_compile_shlib ${lib2src} ${lib2} ${lib2opts}] != ""
82	 || [gdb_compile "${srcdir}/${subdir}/${srcfile}" ${binfile} executable $exec_opts] != ""} {
83	return -1
84    }
85
86    gdb_exit
87    gdb_start
88    gdb_reinitialize_dir $srcdir/$subdir
89    gdb_load ${binfile}
90    gdb_load_shlibs $lib1 $lib2
91
92    runto_main
93
94    gdb_breakpoint "bar"
95
96    # If the library which will be used is compiled without debugging
97    # information, GDB will pick the wrong copy of "bar", i.e. the one
98    # with debugging information.
99
100    if {(${lib1opts} == "" && ${lib2opts} != "" && ${lib1first} == 1)
101	|| (${lib1opts} != "" && ${lib2opts} == "" && ${lib1first} == 0)} {
102	setup_kfail *-*-* gdb/1824
103    }
104
105    gdb_test "continue" "Breakpoint .* bar .*${expected_file}\\..*" \
106	"run to breakpoint - $testopts"
107}
108
109foreach lib1opts {{} {debug}} {
110    foreach lib2opts {{} {debug}} {
111	foreach lib1first {1 0} {
112	    do_test $lib1opts $lib2opts $lib1first
113	}
114    }
115}
116