1 # Copyright 2012-2024 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 require allow_shlib_tests
31 set libname $testfile-jit
32 set srcfile_lib $srcdir/$subdir/$libname.c
33 set binfile_lib [standard_output_file $libname.so]
34 set binfile_lib2 [standard_output_file ${libname}2.so]
36 # Build a standalone JIT binary.
38 proc build_standalone_jit {{options ""}} {
39 global testfile srcfile binfile
41 lappend options "debug"
43 if {[build_executable $testfile.exp $testfile $srcfile $options] == -1} {
50 # Build the shared library JIT.
52 proc build_shared_jit {{options ""}} {
54 global srcfile_lib binfile_lib binfile_lib2
56 lappend options "debug"
57 if { [gdb_compile_shlib $srcfile_lib $binfile_lib $options] != "" } {
60 if { [gdb_compile_shlib $srcfile_lib $binfile_lib2 $options] != "" } {
67 if {[build_standalone_jit] == -1} {
68 untested "failed to compile standalone testcase"
72 if {[build_shared_jit] == -1} {
73 untested "failed to compile shared library testcase"
77 # Build the program that loads the JIT library.
78 set srcfile_dl $testfile-dl.c
79 set binfile_dl $binfile-dl
80 set options [list debug shlib=${binfile_lib}]
81 if {[gdb_compile ${srcdir}/${subdir}/${srcfile_dl} $binfile_dl executable \
83 untested "failed to compile"
87 # Build the program that loads *two* JIT libraries.
88 set binfile_dl2 $binfile-dl2
89 set options [list debug shlib=${binfile_lib} shlib=${binfile_lib2}]
90 if {[gdb_compile ${srcdir}/${subdir}/${srcfile_dl} $binfile_dl2 executable \
92 untested "failed to compile two-jitter binary"
96 # STANDALONE is true when the JIT reader is included directly in the
97 # main program. False when the JIT reader is in a separate shared
98 # library. If CHANGE_ADDR is true, force changing the JIT descriptor
99 # changes address between runs.
100 proc jit_test_reread {standalone change_addr} {
101 global testfile binfile subdir srcfile srcdir binfile_lib binfile_dl
104 with_test_prefix "initial run" {
106 clean_restart $binfile
108 clean_restart $binfile_dl
113 set addr_before [get_hexadecimal_valueof "&__jit_debug_descriptor" 0 \
114 "get address of __jit_debug_descriptor"]
116 gdb_test "maint info breakpoints" \
117 "jit events\[ \]+keep y $hex <__jit_debug_register_code>.*" \
118 "maint info breakpoints shows jit breakpoint"
121 with_test_prefix "second run" {
122 # Ensure that the new executable is at least one second newer
123 # than the old. If the recompilation happens in the same
124 # second, gdb might not reload the executable automatically.
128 set options "additional_flags=-DSPACER"
130 gdb_rename_execfile $binfile ${binfile}x
131 set res [build_standalone_jit $options]
133 gdb_rename_execfile $binfile_lib ${binfile_lib}x
134 set res [build_shared_jit $options]
146 set addr_after [get_hexadecimal_valueof "&__jit_debug_descriptor" 0 \
147 "get address of __jit_debug_descriptor"]
149 # This used to crash in the JIT-in-shared-library case:
150 # https://sourceware.org/bugzilla/show_bug.cgi?id=11094
151 gdb_test "maint info breakpoints" \
152 "jit events\[ \]+keep y $hex <__jit_debug_register_code>.*" \
153 "maint info breakpoints shows jit breakpoint"
157 gdb_assert {$addr_before != $addr_after} "address changed"
159 gdb_assert {$addr_before == $addr_after} "address didn't change"
163 foreach standalone {1 0} {
164 with_test_prefix [expr ($standalone)?"standalone":"shared"] {
165 with_test_prefix "change addr" {
166 jit_test_reread $standalone 1
168 with_test_prefix "same addr" {
169 jit_test_reread $standalone 0
174 # Now start the program that loads two JITer libraries and expect to
175 # see JIT breakpoints defined for both.
177 with_test_prefix "two JITers" {
178 clean_restart $binfile_dl2
186 gdb_test_multiple "maint info breakpoints" "have two jit breakpoints" {
187 -re "jit events${ws}keep y${ws}$hex <__jit_debug_register_code> inf 1\r\n" {
191 -re "$gdb_prompt $" {