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* elfread.c (elf_symtab_read): Treat weak functions as global.
gdb/testsuite/
	* gdb.base/solib-weak.c, gdb.base/solib-weak.exp, gdb.base/weaklib1.c,
	gdb.base/weaklib2.c: New files.
This commit is contained in:
Daniel Jacobowitz 2006-12-01 18:14:30 +00:00
parent 6a4699867a
commit 0823249716
7 changed files with 199 additions and 1 deletions
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4
gdb/ChangeLog
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@ -1,3 +1,7 @@
2006-12-01 Daniel Jacobowitz <dan@codesourcery.com>
* elfread.c (elf_symtab_read): Treat weak functions as global.
2006-11-30 Jim Blandy <jimb@codesourcery.com>
* ada-lang.c (value_subscript_packed): Don't bother to set the

2
gdb/elfread.c
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@ -284,7 +284,7 @@ elf_symtab_read (struct objfile *objfile, int dynamic,
}
else if (sym->section->flags & SEC_CODE)
{
if (sym->flags & BSF_GLOBAL)
if (sym->flags & (BSF_GLOBAL | BSF_WEAK))
{
ms_type = mst_text;
}

5
gdb/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2006-12-01 Daniel Jacobowitz <dan@codesourcery.com>
* gdb.base/solib-weak.c, gdb.base/solib-weak.exp, gdb.base/weaklib1.c,
gdb.base/weaklib2.c: New files.
2006-11-29 Nathan Sidwell <nathan@codesourcery.com>
* gdb.threads/linux-dp.exp: Adjust regexps used to scan thread

25
gdb/testsuite/gdb.base/solib-weak.c Normal file
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@ -0,0 +1,25 @@
/* This testcase is part of GDB, the GNU debugger.
Copyright 2006 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 2 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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
USA. */
int
main()
{
foo ();
return 0;
}

109
gdb/testsuite/gdb.base/solib-weak.exp Normal file
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@ -0,0 +1,109 @@
# Copyright 2006
# 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 2 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# 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.
# Don't try to run shared library test cases on a remote target for now.
if ![isnative] then {
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 testopts ""
if {$lib1opts == ""} {
append testopts "lib1 nodebug, "
} else {
append testopts "lib1 debug, "
}
if {$lib2opts == ""} {
append testopts "lib2 nodebug, "
} else {
append testopts "lib2 debug, "
}
if {$lib1first} {
append testopts "lib1 first"
} else {
append testopts "lib2 first"
}
set testfile "solib-weak"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}
set libfile1 "weaklib1"
set libfile2 "weaklib2"
set lib1src ${srcdir}/${subdir}/${libfile1}.c
set lib2src ${srcdir}/${subdir}/${libfile2}.c
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 ${binfile}
runto_main
gdb_breakpoint "bar"
# If the library which will be used is compiled without debugging
# information, GDB will pick the wrong copy of "bar", i.e. the one
# with debugging information.
if {(${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
}
}
}

24
gdb/testsuite/gdb.base/weaklib1.c Normal file
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@ -0,0 +1,24 @@
/* This testcase is part of GDB, the GNU debugger.
Copyright 2006 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 2 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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
USA. */
void __attribute__((weak))
bar (void)
{
puts ("bar in u1");
}

31
gdb/testsuite/gdb.base/weaklib2.c Normal file
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@ -0,0 +1,31 @@
/* This testcase is part of GDB, the GNU debugger.
Copyright 2006 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 2 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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
USA. */
void bar (void);
void
foo (void)
{
bar ();
}
void
bar (void)
{
puts ("bar in u2");
}