gdb/testsuite/gdb.base/jit.exp

   1 # Copyright 2011-2019 Free Software Foundation, Inc.
   2
   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.
   7 #
   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.
  12 #
  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/>.
  15
  16 if {[skip_shlib_tests]} {
  17     untested "skipping shared library tests"
  18     return -1
  19 }
  20
  21 if {[get_compiler_info]} {
  22     untested "could not get compiler info"
  23     return 1
  24 }
  25
  26 # Compile the testcase program and library.  BINSUFFIX is the suffix
  27 # to append to the program and library filenames, to make them unique
  28 # between invocations.  OPTIONS is passed to gdb_compile when
  29 # compiling the program.
  30
  31 proc compile_jit_test {testname binsuffix options} {
  32     global testfile srcfile binfile srcdir subdir
  33     global solib_testfile solib_srcfile solib_binfile solib_binfile_test_msg
  34     global solib_binfile_target
  35
  36     set testfile jit-main
  37     set srcfile ${testfile}.c
  38     set binfile [standard_output_file $testfile$binsuffix]
  39     if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" \
  40               executable [concat debug $options]] != "" } {
  41         untested $testname
  42         return -1
  43     }
  44
  45     set solib_testfile "jit-solib"
  46     set solib_srcfile "${srcdir}/${subdir}/${solib_testfile}.c"
  47     set solib_binfile [standard_output_file ${solib_testfile}$binsuffix.so]
  48     set solib_binfile_test_msg "SHLIBDIR/${solib_testfile}$binsuffix.so"
  49
  50     # Note: compiling without debug info: the library goes through
  51     # symbol renaming by munging on its symbol table, and that
  52     # wouldn't work for .debug sections.  Also, output for "info
  53     # function" changes when debug info is present.
  54     if { [gdb_compile_shlib ${solib_srcfile} ${solib_binfile} {-fPIC}] != "" } {
  55         untested $testname
  56         return -1
  57     }
  58
  59     set solib_binfile_target [gdb_remote_download target ${solib_binfile}]
  60
  61     return 0
  62 }
  63
  64 # Detach, restart GDB, and re-attach to the program.
  65
  66 proc clean_reattach {} {
  67     global decimal gdb_prompt srcfile testfile
  68
  69     # Get PID of test program.
  70     set testpid -1
  71     set test "get inferior process ID"
  72     gdb_test_multiple "p mypid" $test {
  73         -re ".* = ($decimal).*$gdb_prompt $" {
  74             set testpid $expect_out(1,string)
  75             pass $test
  76         }
  77     }
  78
  79     gdb_test_no_output "set var wait_for_gdb = 1"
  80     gdb_test "detach" "Detaching from .*"
  81
  82     clean_restart $testfile
  83
  84     set test "attach"
  85     gdb_test_multiple "attach $testpid" "$test" {
  86         -re "Attaching to program.*.*main.*at .*$srcfile:.*$gdb_prompt $" {
  87             pass "$test"
  88         }
  89     }
  90
  91     gdb_test_no_output "set var wait_for_gdb = 0"
  92 }
  93
  94 # Continue to LOCATION in the program.  If REATTACH, detach and
  95 # re-attach to the program from scratch.
  96 proc continue_to_test_location {location reattach} {
  97     gdb_breakpoint [gdb_get_line_number $location]
  98     gdb_continue_to_breakpoint $location
  99     if {$reattach} {
 100         with_test_prefix "$location" {
 101             clean_reattach
 102         }
 103     }
 104 }
 105
 106 proc one_jit_test {count match_str reattach} {
 107     with_test_prefix "one_jit_test-$count" {
 108         global verbose testfile solib_binfile_target solib_binfile_test_msg
 109
 110         clean_restart $testfile
 111
 112         # This is just to help debugging when things fail
 113         if {$verbose > 0} {
 114             gdb_test "set debug jit 1"
 115         }
 116
 117         if { ![runto_main] } {
 118             fail "can't run to main"
 119             return
 120         }
 121
 122         gdb_breakpoint [gdb_get_line_number "break here 0"]
 123         gdb_continue_to_breakpoint "break here 0"
 124
 125         # Poke desired values directly into inferior instead of using "set args"
 126         # because "set args" does not work under gdbserver.
 127         gdb_test_no_output "set var argc = 2"
 128         gdb_test_no_output "set var libname = \"$solib_binfile_target\"" "set var libname = \"$solib_binfile_test_msg\""
 129         gdb_test_no_output "set var count = $count"
 130
 131         continue_to_test_location "break here 1" $reattach
 132
 133         gdb_test "info function ^jit_function" "$match_str"
 134
 135         # This is just to help debugging when things fail
 136         if {$verbose > 0} {
 137             gdb_test "maintenance print objfiles"
 138             gdb_test "maintenance info break"
 139         }
 140
 141         continue_to_test_location "break here 2" $reattach
 142
 143         # All jit librares must have been unregistered
 144         gdb_test "info function jit_function" \
 145             "All functions matching regular expression \"jit_function\":"
 146     }
 147 }
 148
 149 if {[compile_jit_test jit.exp "" {}] < 0} {
 150     return
 151 }
 152 one_jit_test 1 "${hex}  jit_function_0000" 0
 153 one_jit_test 2 "${hex}  jit_function_0000\[\r\n\]+${hex}  jit_function_0001" 0
 154
 155 # Test attaching to an inferior with some JIT libraries already
 156 # registered.  We reuse the normal test, and detach/reattach at
 157 # specific interesting points.
 158 if {[can_spawn_for_attach]} {
 159     if {[compile_jit_test "jit.exp attach tests" \
 160              "-attach" {additional_flags=-DATTACH=1}] < 0} {
 161         return
 162     }
 163
 164     with_test_prefix attach {
 165         one_jit_test 2 "${hex}  jit_function_0000\[\r\n\]+${hex}  jit_function_0001" 1
 166     }
 167 }
 168
 169 with_test_prefix PIE {
 170     if {[compile_jit_test "jit.exp PIE tests" \
 171              "-pie" {additional_flags=-fPIE ldflags=-pie}] < 0} {
 172         return
 173     }
 174
 175     one_jit_test 1 "${hex}  jit_function_0000" 0
 176 }