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# Copyright 2006-2021 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 *-*-mingw*]
|| [istarget *-*-cygwin*]
|| [istarget *-*-pe*])} {
return 0
}
# This test uses GCC-specific syntax.
if [get_compiler_info] {
return -1
}
if {![test_compiler_info "gcc-*"]} {
return 0
}
proc do_test { lib1opts lib2opts lib1first } {
global 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 [standard_output_file ${testfile}]
set lib1 [standard_output_file ${libfile1}.sl]
set lib2 [standard_output_file ${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_shlib $lib1
gdb_load_shlib $lib2
runto_main
gdb_breakpoint "bar"
gdb_test "continue" "Breakpoint .* \\.?bar .*${expected_file}\\..*" \
"run to breakpoint - $testopts"
}
foreach lib1opts {{} {debug}} {
foreach lib2opts {{} {debug}} {
foreach lib1first {1 0} {
do_test $lib1opts $lib2opts $lib1first
}
}
}
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