solib-weak.exp revision 1.9 
1#   Copyright 2006-2020 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# 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] {
34    return -1
35}
36
37if {![test_compiler_info "gcc-*"]} {
38    return 0
39}
40
41proc do_test { lib1opts lib2opts lib1first } {
42    global srcdir subdir
43
44    set testfile "solib-weak"
45    set srcfile ${testfile}.c
46
47    set libfile1 "weaklib1"
48    set libfile2 "weaklib2"
49    set lib1src ${srcdir}/${subdir}/${libfile1}.c
50    set lib2src ${srcdir}/${subdir}/${libfile2}.c
51
52    # Select a unique name for this test.  Give each library and
53    # executable a name reflecting its options, so that file caching
54    # on the target system does not pick up the wrong file.
55    set testopts ""
56    if {$lib1opts == ""} {
57	append testopts "lib1 nodebug, "
58    } else {
59	append testopts "lib1 debug, "
60	append lib1 "-dbg"
61    }
62    if {$lib2opts == ""} {
63	append testopts "lib2 nodebug, "
64    } else {
65	append testopts "lib2 debug, "
66	append lib2 "-dbg"
67    }
68    if {$lib1first} {
69	append testopts "lib1 first"
70    } else {
71	append testopts "lib2 first"
72	append testfile "-lib2"
73    }
74
75    set binfile [standard_output_file ${testfile}]
76    set lib1 [standard_output_file ${libfile1}.sl]
77    set lib2 [standard_output_file ${libfile2}.sl]
78
79    if $lib1first {
80	set exec_opts [list debug shlib=${lib1} shlib=${lib2}]
81	set expected_file ${libfile1}
82    } else {
83	set exec_opts [list debug shlib=${lib2} shlib=${lib1}]
84	set expected_file ${libfile2}
85    }
86
87    if { [gdb_compile_shlib ${lib1src} ${lib1} ${lib1opts}] != ""
88	 || [gdb_compile_shlib ${lib2src} ${lib2} ${lib2opts}] != ""
89	 || [gdb_compile "${srcdir}/${subdir}/${srcfile}" ${binfile} executable $exec_opts] != ""} {
90	return -1
91    }
92
93    gdb_exit
94    gdb_start
95    gdb_reinitialize_dir $srcdir/$subdir
96    gdb_load ${binfile}
97    gdb_load_shlib $lib1
98    gdb_load_shlib $lib2
99
100    runto_main
101
102    gdb_breakpoint "bar"
103
104    gdb_test "continue" "Breakpoint .* \\.?bar .*${expected_file}\\..*" \
105	"run to breakpoint - $testopts"
106}
107
108foreach lib1opts {{} {debug}} {
109    foreach lib2opts {{} {debug}} {
110	foreach lib1first {1 0} {
111	    do_test $lib1opts $lib2opts $lib1first
112	}
113    }
114}
115