| # Copyright 2009-2015 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/>. |
| # |
| # Contributed by Paul Pluzhnikov <ppluzhnikov@google.com> |
| # |
| |
| # This test case verifies that if a display is active on a variable |
| # which belongs in a shared library, and that shared library is |
| # reloaded (e.g. due to re-execution of the program), GDB will continue |
| # to display it (gdb-6.8 crashed under this scenario). |
| |
| # Also test that a display of variable which is currently present in |
| # a shared library, but disappears before re-run, doesn't cause GDB |
| # difficulties, and that it continues to display other variables. |
| |
| # Finally, test that displays which refer to main executable |
| # (and thus aren't affected by shared library unloading) are not |
| # disabled prematurely. |
| |
| if { [skip_shlib_tests] || [is_remote target] } { |
| return 0 |
| } |
| |
| # Library file. |
| set libname "solib-display-lib" |
| set srcfile_lib ${srcdir}/${subdir}/${libname}.c |
| set binfile_lib [standard_output_file ${libname}.so] |
| set lib_flags {} |
| # Binary file. |
| set testfile "solib-display-main" |
| set srcfile ${srcdir}/${subdir}/${testfile}.c |
| set executable ${testfile} |
| set binfile [standard_output_file ${executable}] |
| set bin_flags [list debug shlib=${binfile_lib}] |
| |
| if [get_compiler_info] { |
| return -1 |
| } |
| |
| # SEP must be last for the possible `unsupported' error path. |
| foreach libsepdebug {NO IN SEP} { with_test_prefix "$libsepdebug" { |
| |
| set sep_lib_flags $lib_flags |
| if {$libsepdebug != "NO"} { |
| lappend sep_lib_flags {debug} |
| } |
| if { [gdb_compile_shlib ${srcfile_lib} ${binfile_lib} $sep_lib_flags] != "" |
| || [gdb_compile ${srcfile} ${binfile} executable $bin_flags] != "" } { |
| untested "Could not compile $binfile_lib or $binfile." |
| return -1 |
| } |
| |
| if {$libsepdebug == "SEP"} { |
| if {[gdb_gnu_strip_debug $binfile_lib] != 0} { |
| unsupported "Could not split debug of $binfile_lib." |
| return |
| } else { |
| pass "split solib" |
| } |
| } |
| |
| clean_restart $executable |
| |
| if ![runto_main] then { |
| fail "Can't run to main" |
| return 0 |
| } |
| |
| gdb_test "display a_global" "1: a_global = 41" |
| gdb_test "display b_global" "2: b_global = 42" |
| gdb_test "display c_global" "3: c_global = 43" |
| |
| if { [gdb_start_cmd] < 0 } { |
| fail "Can't run to main (2)" |
| continue |
| } |
| |
| gdb_test "" "3: c_global = 43\\r\\n2: b_global = 42\\r\\n1: a_global = 41" "after rerun" |
| |
| # Now rebuild the library without b_global |
| if { [gdb_compile_shlib ${srcfile_lib} ${binfile_lib} \ |
| "$sep_lib_flags additional_flags=-DNO_B_GLOBAL"] != ""} { |
| fail "Can't rebuild $binfile_lib" |
| } |
| |
| if {$libsepdebug == "SEP"} { |
| set test "split solib second time" |
| if {[gdb_gnu_strip_debug $binfile_lib] != 0} { |
| fail $test |
| continue |
| } else { |
| pass $test |
| } |
| } |
| |
| if { [gdb_start_cmd] < 0 } { |
| fail "Can't run to main (3)" |
| continue |
| } |
| |
| gdb_test "" "3: c_global = 43\\r\\nwarning: .*b_global.*\\r\\n1: a_global = 41" "after rerun (2)" |
| |
| # Now verify that displays which are not in the shared library |
| # are not cleared permaturely. |
| |
| gdb_test "break [gdb_get_line_number "break here" ${testfile}.c]" \ |
| ".*Breakpoint.* at .*" |
| |
| gdb_test "continue" |
| gdb_test "display main_global" "4: main_global = 44" |
| gdb_test "display a_local" "5: a_local = 45" |
| gdb_test "display a_static" "6: a_static = 46" |
| |
| if { [gdb_start_cmd] < 0 } { |
| fail "Can't run to main (4)" |
| continue |
| } |
| |
| gdb_test "" "6: a_static = 46\\r\\n4: main_global = 44\\r\\n.*" |
| gdb_test "break [gdb_get_line_number "break here" ${testfile}.c]" \ |
| ".*Breakpoint.* at .*" |
| gdb_test "continue" "6: a_static = 46\\r\\n5: a_local = 45\\r\\n4: main_global = 44\\r\\n.*" |
| }} |