gdb/testsuite/gdb.arch/ftrace-insn-reloc.exp

   1 # Copyright 2015-2016 Free Software Foundation, Inc.
   2 # This program is free software; you can redistribute it and/or modify
   3 # it under the terms of the GNU General Public License as published by
   4 # the Free Software Foundation; either version 3 of the License, or
   5 # (at your option) any later version.
   6 #
   7 # This program is distributed in the hope that it will be useful,
   8 # but WITHOUT ANY WARRANTY; without even the implied warranty of
   9 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10 # GNU General Public License for more details.
  11 #
  12 # You should have received a copy of the GNU General Public License
  13 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  14
  15 load_lib "trace-support.exp"
  16
  17 standard_testfile insn-reloc.c
  18 set executable $testfile
  19 set expfile $testfile.exp
  20
  21 # Some targets have leading underscores on assembly symbols.
  22 set additional_flags [gdb_target_symbol_prefix_flags]
  23
  24 if [prepare_for_testing $expfile $executable $srcfile \
  25         [list debug $additional_flags]] {
  26     untested "failed to prepare for trace tests"
  27     return -1
  28 }
  29
  30 if ![runto_main] {
  31     fail "Can't run to main to check for trace support"
  32     return -1
  33 }
  34
  35 if ![gdb_target_supports_trace] {
  36     unsupported "target does not support trace"
  37     return -1
  38 }
  39
  40 set libipa [get_in_proc_agent]
  41 gdb_load_shlibs $libipa
  42
  43 # Can't use prepare_for_testing, because that splits compiling into
  44 # building objects and then linking, and we'd fail with "linker input
  45 # file unused because linking not done" when building the object.
  46
  47 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
  48           executable [list debug $additional_flags shlib=$libipa] ] != "" } {
  49     untested "failed to compile ftrace tests"
  50     return -1
  51 }
  52 clean_restart ${executable}
  53
  54 if ![runto_main] {
  55     fail "Can't run to main for ftrace tests"
  56     return 0
  57 }
  58
  59 gdb_reinitialize_dir $srcdir/$subdir
  60
  61 if { [gdb_test "info sharedlibrary" ".*[file tail ${libipa}].*" "IPA loaded"] != 0 } {
  62     untested "Could not find IPA lib loaded"
  63     return 1
  64 }
  65
  66 # Read function name from testcases[N].
  67
  68 proc read_testcase { n } {
  69     global gdb_prompt
  70
  71     set result -1
  72     gdb_test_multiple "print testcases\[${n}\]" "read name of test case ${n}" {
  73         -re "\[$\].*= .*<(.*)>.*$gdb_prompt $" {
  74             set result $expect_out(1,string)
  75         }
  76         -re "$gdb_prompt $" { }
  77     }
  78
  79     return $result
  80 }
  81
  82 set n_testcases [gdb_readexpr "n_testcases"]
  83
  84 if { ${n_testcases} == 0 } {
  85     untested "No instruction relocation to test"
  86     return 1
  87 }
  88
  89 # Set a fast tracepoint on each set_point${i} symbol.  There is one for
  90 # each testcase.
  91 for { set i 0 } { ${i} < ${n_testcases} } { incr i } {
  92     set testcase [read_testcase $i]
  93
  94     gdb_test "ftrace *set_point$i" "Fast tracepoint .*" \
  95         "fast tracepoint on ${testcase}"
  96 }
  97
  98 gdb_test "break pass" ".*" ""
  99 gdb_test "break fail" ".*" ""
 100
 101 gdb_test_no_output "tstart" "start trace experiment"
 102
 103 # Make sure we have hit the pass breakpoint for each testcase.
 104 for { set i 0 } { ${i} < ${n_testcases} } { incr i } {
 105     set testcase [read_testcase $i]
 106
 107     gdb_test "continue" \
 108         ".*Breakpoint \[0-9\]+, pass \(\).*" \
 109         "relocated instruction at ${testcase}"
 110 }
 111
 112 gdb_test "tstatus" ".*Collected ${n_testcases} trace frames.*" "check on trace status"
 113
 114 gdb_test "tstop" "" ""