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     if {[is_remote target]} {
  61         set solib_binfile_target [gdb_download ${solib_binfile}]
  62     } else {
  63         set solib_binfile_target $solib_binfile
  64     }
  65
  66     return 0
  67 }
  68
  69 # Detach, restart GDB, and re-attach to the program.
  70
  71 proc clean_reattach {} {
  72     global decimal gdb_prompt srcfile testfile
  73
  74     # Get PID of test program.
  75     set testpid -1
  76     set test "get inferior process ID"
  77     gdb_test_multiple "p mypid" $test {
  78         -re ".* = ($decimal).*$gdb_prompt $" {
  79             set testpid $expect_out(1,string)
  80             pass $test
  81         }
  82     }
  83
  84     gdb_test_no_output "set var wait_for_gdb = 1"
  85     gdb_test "detach" "Detaching from .*"
  86
  87     clean_restart $testfile
  88
  89     set test "attach"
  90     gdb_test_multiple "attach $testpid" "$test" {
  91         -re "Attaching to program.*.*main.*at .*$srcfile:.*$gdb_prompt $" {
  92             pass "$test"
  93         }
  94     }
  95
  96     gdb_test_no_output "set var wait_for_gdb = 0"
  97 }
  98
  99 # Continue to LOCATION in the program.  If REATTACH, detach and
 100 # re-attach to the program from scratch.
 101 proc continue_to_test_location {location reattach} {
 102     gdb_breakpoint [gdb_get_line_number $location]
 103     gdb_continue_to_breakpoint $location
 104     if {$reattach} {
 105         with_test_prefix "$location" {
 106             clean_reattach
 107         }
 108     }
 109 }
 110
 111 proc one_jit_test {count match_str reattach} {
 112     with_test_prefix "one_jit_test-$count" {
 113         global verbose testfile solib_binfile_target solib_binfile_test_msg
 114
 115         clean_restart $testfile
 116
 117         # This is just to help debugging when things fail
 118         if {$verbose > 0} {
 119             gdb_test "set debug jit 1"
 120         }
 121
 122         if { ![runto_main] } {
 123             fail "Can't run to main"
 124             return
 125         }
 126
 127         gdb_breakpoint [gdb_get_line_number "break here 0"]
 128         gdb_continue_to_breakpoint "break here 0"
 129
 130         # Poke desired values directly into inferior instead of using "set args"
 131         # because "set args" does not work under gdbserver.
 132         gdb_test_no_output "set var argc = 2"
 133         gdb_test_no_output "set var libname = \"$solib_binfile_target\"" "set var libname = \"$solib_binfile_test_msg\""
 134         gdb_test_no_output "set var count = $count"
 135
 136         continue_to_test_location "break here 1" $reattach
 137
 138         gdb_test "info function ^jit_function" "$match_str"
 139
 140         # This is just to help debugging when things fail
 141         if {$verbose > 0} {
 142             gdb_test "maintenance print objfiles"
 143             gdb_test "maintenance info break"
 144         }
 145
 146         continue_to_test_location "break here 2" $reattach
 147
 148         # All jit librares must have been unregistered
 149         gdb_test "info function jit_function" \
 150             "All functions matching regular expression \"jit_function\":"
 151     }
 152 }
 153
 154 if {[compile_jit_test jit.exp "" {}] < 0} {
 155     return
 156 }
 157 one_jit_test 1 "${hex}  jit_function_0000" 0
 158 one_jit_test 2 "${hex}  jit_function_0000\[\r\n\]+${hex}  jit_function_0001" 0
 159
 160 # Test attaching to an inferior with some JIT libraries already
 161 # registered.  We reuse the normal test, and detach/reattach at
 162 # specific interesting points.
 163 if {[can_spawn_for_attach]} {
 164     if {[compile_jit_test "jit.exp attach tests" \
 165              "-attach" {additional_flags=-DATTACH=1}] < 0} {
 166         return
 167     }
 168
 169     with_test_prefix attach {
 170         one_jit_test 2 "${hex}  jit_function_0000\[\r\n\]+${hex}  jit_function_0001" 1
 171     }
 172 }
 173
 174 with_test_prefix PIE {
 175     if {[compile_jit_test "jit.exp PIE tests" \
 176              "-pie" {additional_flags=-fPIE ldflags=-pie}] < 0} {
 177         return
 178     }
 179
 180     one_jit_test 1 "${hex}  jit_function_0000" 0
 181 }