1 # Copyright 2012-2021 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>.
16 # Test re-running an inferior with a JIT descriptor, where the JIT
17 # descriptor changes address between runs.
18 # http://sourceware.org/bugzilla/show_bug.cgi?id=13431
20 # Test both the case of the JIT reader being included in the main
21 # program directly, and the case of the JIT reader being split out to
24 # For completeness, also test when the JIT descriptor does not change
25 # address between runs.
27 if {[skip_shlib_tests]} {
28 untested "skipping shared library tests"
34 set libname $testfile-jit
35 set srcfile_lib $srcdir/$subdir/$libname.c
36 set binfile_lib [standard_output_file $libname.so]
37 set binfile_lib2 [standard_output_file ${libname}2.so]
39 # Build a standalone JIT binary.
41 proc build_standalone_jit {{options ""}} {
42 global testfile srcfile binfile
44 lappend options "debug"
46 if {[build_executable $testfile.exp $testfile $srcfile $options] == -1} {
53 # Build the shared library JIT.
55 proc build_shared_jit {{options ""}} {
57 global srcfile_lib binfile_lib binfile_lib2
59 lappend options "debug"
60 if { [gdb_compile_shlib $srcfile_lib $binfile_lib $options] != "" } {
63 if { [gdb_compile_shlib $srcfile_lib $binfile_lib2 $options] != "" } {
70 if {[build_standalone_jit] == -1} {
71 untested "failed to compile standalone testcase"
75 if {[build_shared_jit] == -1} {
76 untested "failed to compile shared library testcase"
80 # Build the program that loads the JIT library.
81 set srcfile_dl $testfile-dl.c
82 set binfile_dl $binfile-dl
83 set options [list debug shlib=${binfile_lib}]
84 if {[gdb_compile ${srcdir}/${subdir}/${srcfile_dl} $binfile_dl executable \
86 untested "failed to compile"
90 # Build the program that loads *two* JIT libraries.
91 set binfile_dl2 $binfile-dl2
92 set options [list debug shlib=${binfile_lib} shlib=${binfile_lib2}]
93 if {[gdb_compile ${srcdir}/${subdir}/${srcfile_dl} $binfile_dl2 executable \
95 untested "failed to compile two-jitter binary"
99 # STANDALONE is true when the JIT reader is included directly in the
100 # main program. False when the JIT reader is in a separate shared
101 # library. If CHANGE_ADDR is true, force changing the JIT descriptor
102 # changes address between runs.
103 proc jit_test_reread {standalone change_addr} {
104 global testfile binfile subdir srcfile srcdir binfile_lib binfile_dl
107 with_test_prefix "initial run" {
109 clean_restart $binfile
111 clean_restart $binfile_dl
116 set addr_before [get_hexadecimal_valueof "&__jit_debug_descriptor" 0 \
117 "get address of __jit_debug_descriptor"]
119 gdb_test "maint info breakpoints" \
120 "jit events keep y $hex <__jit_debug_register_code>.*" \
121 "maint info breakpoints shows jit breakpoint"
124 with_test_prefix "second run" {
125 # Ensure that the new executable is at least one second newer
126 # than the old. If the recompilation happens in the same
127 # second, gdb might not reload the executable automatically.
131 set options "additional_flags=-DSPACER"
133 gdb_rename_execfile $binfile ${binfile}x
134 set res [build_standalone_jit $options]
136 gdb_rename_execfile $binfile_lib ${binfile_lib}x
137 set res [build_shared_jit $options]
149 set addr_after [get_hexadecimal_valueof "&__jit_debug_descriptor" 0 \
150 "get address of __jit_debug_descriptor"]
152 # This used to crash in the JIT-in-shared-library case:
153 # https://sourceware.org/bugzilla/show_bug.cgi?id=11094
154 gdb_test "maint info breakpoints" \
155 "jit events keep y $hex <__jit_debug_register_code>.*" \
156 "maint info breakpoints shows jit breakpoint"
160 gdb_assert {$addr_before != $addr_after} "address changed"
162 gdb_assert {$addr_before == $addr_after} "address didn't change"
166 foreach standalone {1 0} {
167 with_test_prefix [expr ($standalone)?"standalone":"shared"] {
168 with_test_prefix "change addr" {
169 jit_test_reread $standalone 1
171 with_test_prefix "same addr" {
172 jit_test_reread $standalone 0
177 # Now start the program that loads two JITer libraries and expect to
178 # see JIT breakpoints defined for both.
180 with_test_prefix "two JITers" {
181 clean_restart $binfile_dl2
184 untested "could not run to main"
190 gdb_test_multiple "maint info breakpoints" "have two jit breakpoints" {
191 -re "jit events${ws}keep y${ws}$hex <__jit_debug_register_code> inf 1\r\n" {
195 -re "$gdb_prompt $" {