* gdb.base/solib-search-lib1.c: New file.
* gdb.base/solib-search-lib2.c: New file. * gdb.base/solib-search.c: New file. * gdb.base/solib-search.h: New file. * gdb.base/solib-search.exp: New file.
This commit is contained in:
Doug Evans
parent
0892cb63bd
commit
b903e17e96
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@ -1,5 +1,11 @@
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2013-05-06 Doug Evans <dje@google.com>
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* gdb.base/solib-search-lib1.c: New file.
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* gdb.base/solib-search-lib2.c: New file.
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* gdb.base/solib-search.c: New file.
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* gdb.base/solib-search.h: New file.
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* gdb.base/solib-search.exp: New file.
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* lib/gdb.exp (gdb_core_cmd): New function.
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* gdb.arch/system-gcore.exp: Use it.
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* gdb.arch/vsx-regs.exp: Ditto.
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@ -0,0 +1,51 @@
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/* This test program is part of GDB, the GNU debugger.
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Copyright 2013 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "solib-search.h"
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#ifndef ARRAY_SIZE
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#define ARRAY_SIZE 1
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#endif
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const int lib1_array[ARRAY_SIZE] = { 42 };
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const int lib1_size = ARRAY_SIZE;
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void
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lib1_func1 (void)
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{
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lib2_func2 ();
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}
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/* Make the relative address of func3 different b/w the "wrong" and "right"
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versions of the library" to further ensure backtrace doesn't work with
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the "wrong" version. */
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#ifdef RIGHT
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void
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lib1_spacer (void)
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{
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}
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#endif
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void
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lib1_func3 (void)
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{
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lib2_func4 ();
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}
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@ -0,0 +1,51 @@
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/* This test program is part of GDB, the GNU debugger.
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Copyright 2013 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "solib-search.h"
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#ifndef ARRAY_SIZE
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#define ARRAY_SIZE 1
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#endif
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const int lib2_array[ARRAY_SIZE] = { 42 };
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const int lib2_size = ARRAY_SIZE;
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void
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lib2_func2 (void)
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{
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lib1_func3 ();
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}
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/* Make the relative address of func4 different b/w the "wrong" and "right"
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versions of the library" to further ensure backtrace doesn't work with
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the "wrong" version. */
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#ifdef RIGHT
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void
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lib2_spacer (void)
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{
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}
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#endif
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void
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lib2_func4 (void)
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{
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break_here ();
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}
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@ -0,0 +1,31 @@
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/* This test program is part of GDB, the GNU debugger.
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Copyright 2013 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "solib-search.h"
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int
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main ()
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{
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lib1_func1 ();
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return 0;
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}
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void
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break_here ()
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{
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}
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@ -0,0 +1,184 @@
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# Copyright 2013 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Test solib-search-path, and in the case of solib-svr4.c whether l_addr_p
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# is properly reset when the path is changed.
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if {[is_remote target] || [skip_shlib_tests]} {
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untested solib-search.exp
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return -1
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}
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# This is required by gdb_compile_shlib.
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if {[get_compiler_info]} {
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warning "Could not get compiler info"
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untested solib-search.exp
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return 1
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}
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# Build "wrong" and "right" versions of the libraries in separate directories.
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set wrong_lib_subdir "solib-search-wrong"
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set right_lib_subdir "solib-search-right"
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# First library file.
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set libname1 "solib-search-lib1"
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set srcfile1_lib ${srcdir}/${subdir}/${libname1}.c
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set wrong_binfile1_lib ${objdir}/${subdir}/${wrong_lib_subdir}/${libname1}.so
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set right_binfile1_lib ${objdir}/${subdir}/${right_lib_subdir}/${libname1}.so
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# Second library file.
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set libname2 "solib-search-lib2"
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set srcfile2_lib ${srcdir}/${subdir}/${libname2}.c
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set wrong_binfile2_lib ${objdir}/${subdir}/${wrong_lib_subdir}/${libname2}.so
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set right_binfile2_lib ${objdir}/${subdir}/${right_lib_subdir}/${libname2}.so
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# Link with the library that lives here.
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# This is so that we can replace what gdb sees with the wrong copy,
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# and then tell gdb to use the right copy that lives someplace else.
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set binfile1_lib ${objdir}/${subdir}/${libname1}.so
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set binfile2_lib ${objdir}/${subdir}/${libname2}.so
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set lib_flags [list debug ldflags=-Wl,-Bsymbolic]
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set wrong_lib_flags "$lib_flags additional_flags=-DARRAY_SIZE=1"
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set right_lib_flags "$lib_flags additional_flags=-DARRAY_SIZE=8192 -DRIGHT"
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# Binary file.
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set testfile "solib-search"
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set srcfile ${srcdir}/${subdir}/${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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set bin_flags [list debug shlib=${binfile1_lib} shlib=${binfile2_lib}]
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remote_exec build "rm -rf ${subdir}/${wrong_lib_subdir}"
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remote_exec build "rm -rf ${subdir}/${right_lib_subdir}"
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remote_exec build "mkdir ${subdir}/${wrong_lib_subdir}"
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remote_exec build "mkdir ${subdir}/${right_lib_subdir}"
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if { [gdb_compile_shlib ${srcfile1_lib} ${wrong_binfile1_lib} $wrong_lib_flags] != ""
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|| [gdb_compile_shlib ${srcfile2_lib} ${wrong_binfile2_lib} $wrong_lib_flags] != ""
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|| [gdb_compile_shlib ${srcfile1_lib} ${right_binfile1_lib} $right_lib_flags] != ""
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|| [gdb_compile_shlib ${srcfile2_lib} ${right_binfile2_lib} $right_lib_flags] != "" } {
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untested "Could not compile libs."
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return -1
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}
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# Build the test binary using the right copies of the libraries.
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remote_exec build "ln -sf ${right_lib_subdir}/${libname1}.so ${binfile1_lib}"
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remote_exec build "ln -sf ${right_lib_subdir}/${libname2}.so ${binfile2_lib}"
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if { [gdb_compile ${srcfile} ${binfile} executable $bin_flags] != "" } {
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untested "Could not compile $binfile."
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return -1
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}
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clean_restart $testfile
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if { ![runto_main] } {
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fail "Can't run to main"
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return
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}
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gdb_breakpoint "break_here"
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gdb_continue "break_here"
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set corefile "${objdir}/${subdir}/solib-search.core"
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set core_supported [gdb_gcore_cmd "$corefile" "save a corefile"]
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if {!$core_supported} {
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return -1
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}
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# Before we restart gdb, replace the libs with the "wrong" ones.
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remote_exec build "ln -sf ${wrong_lib_subdir}/${libname1}.so ${binfile1_lib}"
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remote_exec build "ln -sf ${wrong_lib_subdir}/${libname2}.so ${binfile2_lib}"
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clean_restart $testfile
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set core_loaded [gdb_core_cmd $corefile "re-load generated corefile"]
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if { $core_loaded == -1 } {
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# No use proceeding from here.
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return
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}
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proc test_backtrace { expect_fail } {
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global gdb_prompt
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set count 0
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set total_expected 5
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if { $expect_fail } {
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set testname "backtrace (with wrong libs)"
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} else {
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set testname "backtrace (with right libs)"
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}
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# N.B. The order of the tests here is important.
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# We need to count each function in the backtrace, and expect matches
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# the first one it finds.
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gdb_test_multiple "backtrace" $testname {
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-re "\[^\r\n\]* in lib2_func4 \[^\r\n\]*" {
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incr count
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exp_continue
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}
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-re "\[^\r\n\]* in lib1_func3 \[^\r\n\]*" {
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incr count
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exp_continue
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}
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-re "\[^\r\n\]* in lib2_func2 \[^\r\n\]*" {
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incr count
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exp_continue
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}
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-re "\[^\r\n\]* in lib1_func1 \[^\r\n\]*" {
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incr count
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exp_continue
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}
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-re "\[^\r\n\]* in main \[^\r\n\]*" {
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incr count
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exp_continue
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}
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-re "\[\r\n\]$gdb_prompt $" {
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pass "$testname (data collection)"
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}
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}
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set fail 0
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if { $expect_fail } {
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# If the backtrace output is correct the test isn't sufficiently
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# testing what it should.
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if { $count == $total_expected } {
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set fail 1
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}
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} else {
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if { $count != $total_expected } {
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set fail 1
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}
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}
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if { $fail } {
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fail $testname
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} else {
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pass $testname
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}
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}
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# Verify the backtrace is messed up.
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test_backtrace 1
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# Remove the copies gdb currently sees: the absolute path is encoded in
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# the core file and we want gdb to find the right copies elsewhere.
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remote_exec build "rm -f ${binfile1_lib}"
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remote_exec build "rm -f ${binfile2_lib}"
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# Set solib-search-path to use the correct copies of libraries.
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gdb_test "set solib-search-path ${objdir}/${subdir}/${right_lib_subdir}"
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# Verify gdb has properly updated the location of the libraries.
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test_backtrace 0
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gdb_test "p lib1_size" " = 8192"
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gdb_test "p lib2_size" " = 8192"
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@ -0,0 +1,32 @@
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/* This test program is part of GDB, the GNU debugger.
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Copyright 2013 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GDB_BASE_SOLIB_SEARCH_H
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#define GDB_BASE_SOLIB_SEARCH_H
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/* These functions create a call chain that traverses both libs. */
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extern void lib1_func1 (void);
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extern void lib1_func3 (void);
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extern void lib2_func2 (void);
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extern void lib2_func4 (void);
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extern void break_here (void);
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#endif /* GDB_BASE_SOLIB_SEARCH_H */
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