gdb/testsuite/gdb.base/jit.exp

   1 # Copyright 2011-2016 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 jit.exp
  18     return -1
  19 }
  20
  21 if {[get_compiler_info]} {
  22     warning "Could not get compiler info"
  23     untested jit.exp
  24     return 1
  25 }
  26
  27 # Compile the testcase program and library.  BINSUFFIX is the suffix
  28 # to append to the program and library filenames, to make them unique
  29 # between invocations.  OPTIONS is passed to gdb_compile when
  30 # compiling the program.
  31
  32 proc compile_jit_test {testname binsuffix options} {
  33     global testfile srcfile binfile srcdir subdir
  34     global solib_testfile solib_srcfile solib_binfile solib_binfile_test_msg
  35     global solib_binfile_target
  36
  37     set testfile jit-main
  38     set srcfile ${testfile}.c
  39     set binfile [standard_output_file $testfile$binsuffix]
  40     if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" \
  41               executable [concat debug $options]] != "" } {
  42         untested $testname
  43         return -1
  44     }
  45
  46     set solib_testfile "jit-solib"
  47     set solib_srcfile "${srcdir}/${subdir}/${solib_testfile}.c"
  48     set solib_binfile [standard_output_file ${solib_testfile}$binsuffix.so]
  49     set solib_binfile_test_msg "SHLIBDIR/${solib_testfile}$binsuffix.so"
  50
  51     # Note: compiling without debug info: the library goes through
  52     # symbol renaming by munging on its symbol table, and that
  53     # wouldn't work for .debug sections.  Also, output for "info
  54     # function" changes when debug info is present.
  55     if { [gdb_compile_shlib ${solib_srcfile} ${solib_binfile} {-fPIC}] != "" } {
  56         untested $testname
  57         return -1
  58     }
  59
  60     set solib_binfile_target [gdb_remote_download target ${solib_binfile}]
  61
  62     return 0
  63 }
  64
  65 # Detach, restart GDB, and re-attach to the program.
  66
  67 proc clean_reattach {} {
  68     global decimal gdb_prompt srcfile testfile
  69
  70     # Get PID of test program.
  71     set testpid -1
  72     set test "get inferior process ID"
  73     gdb_test_multiple "p mypid" $test {
  74         -re ".* = ($decimal).*$gdb_prompt $" {
  75             set testpid $expect_out(1,string)
  76             pass $test
  77         }
  78     }
  79
  80     gdb_test_no_output "set var wait_for_gdb = 1"
  81     gdb_test "detach" "Detaching from .*"
  82
  83     clean_restart $testfile
  84
  85     set test "attach"
  86     gdb_test_multiple "attach $testpid" "$test" {
  87         -re "Attaching to program.*.*main.*at .*$srcfile:.*$gdb_prompt $" {
  88             pass "$test"
  89         }
  90     }
  91
  92     gdb_test_no_output "set var wait_for_gdb = 0"
  93 }
  94
  95 # Continue to LOCATION in the program.  If REATTACH, detach and
  96 # re-attach to the program from scratch.
  97 proc continue_to_test_location {location reattach} {
  98     gdb_breakpoint [gdb_get_line_number $location]
  99     gdb_continue_to_breakpoint $location
 100     if {$reattach} {
 101         with_test_prefix "$location" {
 102             clean_reattach
 103         }
 104     }
 105 }
 106
 107 proc one_jit_test {count match_str reattach} {
 108     with_test_prefix "one_jit_test-$count" {
 109         global verbose testfile solib_binfile_target solib_binfile_test_msg
 110
 111         clean_restart $testfile
 112
 113         # This is just to help debugging when things fail
 114         if {$verbose > 0} {
 115             gdb_test "set debug jit 1"
 116         }
 117
 118         if { ![runto_main] } {
 119             fail "Can't run to main"
 120             return
 121         }
 122
 123         gdb_breakpoint [gdb_get_line_number "break here 0"]
 124         gdb_continue_to_breakpoint "break here 0"
 125
 126         # Poke desired values directly into inferior instead of using "set args"
 127         # because "set args" does not work under gdbserver.
 128         gdb_test_no_output "set var argc = 2"
 129         gdb_test_no_output "set var libname = \"$solib_binfile_target\"" "set var libname = \"$solib_binfile_test_msg\""
 130         gdb_test_no_output "set var count = $count"
 131
 132         continue_to_test_location "break here 1" $reattach
 133
 134         gdb_test "info function ^jit_function" "$match_str"
 135
 136         # This is just to help debugging when things fail
 137         if {$verbose > 0} {
 138             gdb_test "maintenance print objfiles"
 139             gdb_test "maintenance info break"
 140         }
 141
 142         continue_to_test_location "break here 2" $reattach
 143
 144         # All jit librares must have been unregistered
 145         gdb_test "info function jit_function" \
 146             "All functions matching regular expression \"jit_function\":"
 147     }
 148 }
 149
 150 if {[compile_jit_test jit.exp "" {}] < 0} {
 151     return
 152 }
 153 one_jit_test 1 "${hex}  jit_function_0000" 0
 154 one_jit_test 2 "${hex}  jit_function_0000\[\r\n\]+${hex}  jit_function_0001" 0
 155
 156 # Test attaching to an inferior with some JIT libraries already
 157 # registered.  We reuse the normal test, and detach/reattach at
 158 # specific interesting points.
 159 if {[can_spawn_for_attach]} {
 160     if {[compile_jit_test "jit.exp attach tests" \
 161              "-attach" {additional_flags=-DATTACH=1}] < 0} {
 162         return
 163     }
 164
 165     with_test_prefix attach {
 166         one_jit_test 2 "${hex}  jit_function_0000\[\r\n\]+${hex}  jit_function_0001" 1
 167     }
 168 }
 169
 170 with_test_prefix PIE {
 171     if {[compile_jit_test "jit.exp PIE tests" \
 172              "-pie" {additional_flags=-fPIE ldflags=-pie}] < 0} {
 173         return
 174     }
 175
 176     one_jit_test 1 "${hex}  jit_function_0000" 0
 177 }