# Copyright 2006, 2007, 2008, 2009 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. # Test setting breakpoints on shared library functions provided by more # than one shared library, when one of the implementations is a "weak" # symbol. GDB should set a breakpoint at the first copy it finds. if {[skip_shlib_tests]} { return 0 } # These targets have shared libraries, but weak symbols are not meaningful. if {([istarget arm*-*-symbianelf*] || [istarget *-*-mingw*] || [istarget *-*-cygwin*] || [istarget *-*-pe*])} { return 0 } # This test uses GCC-specific syntax. if [get_compiler_info not-used] { return -1 } if {![test_compiler_info "gcc-*"]} { return 0 } proc do_test { lib1opts lib2opts lib1first } { global objdir srcdir subdir set testfile "solib-weak" set srcfile ${testfile}.c set libfile1 "weaklib1" set libfile2 "weaklib2" set lib1src ${srcdir}/${subdir}/${libfile1}.c set lib2src ${srcdir}/${subdir}/${libfile2}.c # Select a unique name for this test. Give each library and # executable a name reflecting its options, so that file caching # on the target system does not pick up the wrong file. set testopts "" if {$lib1opts == ""} { append testopts "lib1 nodebug, " } else { append testopts "lib1 debug, " append lib1 "-dbg" } if {$lib2opts == ""} { append testopts "lib2 nodebug, " } else { append testopts "lib2 debug, " append lib2 "-dbg" } if {$lib1first} { append testopts "lib1 first" } else { append testopts "lib2 first" append testfile "-lib2" } set binfile ${objdir}/${subdir}/${testfile} set lib1 ${objdir}/${subdir}/${libfile1}.sl set lib2 ${objdir}/${subdir}/${libfile2}.sl if $lib1first { set exec_opts [list debug shlib=${lib1} shlib=${lib2}] set expected_file ${libfile1} } else { set exec_opts [list debug shlib=${lib2} shlib=${lib1}] set expected_file ${libfile2} } if { [gdb_compile_shlib ${lib1src} ${lib1} ${lib1opts}] != "" || [gdb_compile_shlib ${lib2src} ${lib2} ${lib2opts}] != "" || [gdb_compile "${srcdir}/${subdir}/${srcfile}" ${binfile} executable $exec_opts] != ""} { return -1 } gdb_exit gdb_start gdb_reinitialize_dir $srcdir/$subdir gdb_load ${binfile} gdb_load_shlibs $lib1 $lib2 runto_main gdb_breakpoint "bar" # If the library which will be used is compiled without debugging # information, GDB will pick the wrong copy of "bar", i.e. the one # with debugging information. if {(${lib1opts} == "" && ${lib2opts} != "" && ${lib1first} == 1) || (${lib1opts} != "" && ${lib2opts} == "" && ${lib1first} == 0)} { setup_kfail *-*-* gdb/1824 } gdb_test "continue" "Breakpoint .* bar .*${expected_file}\\..*" \ "run to breakpoint - $testopts" } foreach lib1opts {{} {debug}} { foreach lib2opts {{} {debug}} { foreach lib1first {1 0} { do_test $lib1opts $lib2opts $lib1first } } }