| 1 | # Copyright 2006, 2007, 2008, 2009 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 | |
| 20 | if {[skip_shlib_tests]} { |
| 21 | return 0 |
| 22 | } |
| 23 | |
| 24 | # These targets have shared libraries, but weak symbols are not meaningful. |
| 25 | if {([istarget arm*-*-symbianelf*] |
| 26 | || [istarget *-*-mingw*] |
| 27 | || [istarget *-*-cygwin*] |
| 28 | || [istarget *-*-pe*])} { |
| 29 | return 0 |
| 30 | } |
| 31 | |
| 32 | # This test uses GCC-specific syntax. |
| 33 | if [get_compiler_info not-used] { |
| 34 | return -1 |
| 35 | } |
| 36 | |
| 37 | if {![test_compiler_info "gcc-*"]} { |
| 38 | return 0 |
| 39 | } |
| 40 | |
| 41 | proc do_test { lib1opts lib2opts lib1first } { |
| 42 | global objdir 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 ${objdir}/${subdir}/${testfile} |
| 76 | set lib1 ${objdir}/${subdir}/${libfile1}.sl |
| 77 | set lib2 ${objdir}/${subdir}/${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_shlibs $lib1 $lib2 |
| 98 | |
| 99 | runto_main |
| 100 | |
| 101 | gdb_breakpoint "bar" |
| 102 | |
| 103 | # If the library which will be used is compiled without debugging |
| 104 | # information, GDB will pick the wrong copy of "bar", i.e. the one |
| 105 | # with debugging information. |
| 106 | |
| 107 | if {(${lib1opts} == "" && ${lib2opts} != "" && ${lib1first} == 1) |
| 108 | || (${lib1opts} != "" && ${lib2opts} == "" && ${lib1first} == 0)} { |
| 109 | setup_kfail *-*-* gdb/1824 |
| 110 | } |
| 111 | |
| 112 | gdb_test "continue" "Breakpoint .* bar .*${expected_file}\\..*" \ |
| 113 | "run to breakpoint - $testopts" |
| 114 | } |
| 115 | |
| 116 | foreach lib1opts {{} {debug}} { |
| 117 | foreach lib2opts {{} {debug}} { |
| 118 | foreach lib1first {1 0} { |
| 119 | do_test $lib1opts $lib2opts $lib1first |
| 120 | } |
| 121 | } |
| 122 | } |