gdb/testsuite/gdb.base/eh_return.exp

   1 # Copyright 2020-2023 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 # Check if executable generated from eh_return.c assert when setting a
  17 # breakpoint at the last insn of eh, and running to it.
  18
  19 standard_testfile
  20
  21 # Set compiler flags.
  22 if {[istarget "powerpc*"]} {
  23     # PowerPC generates a Traceback Table, as defined in the PPC64 ABI,
  24     # following each function by default.  The Traceback Table information is
  25     # typically interpreted by the disassembler as data represented with
  26     # .long xxxx following the last instruction in the function.  For example:
  27     #
  28     #   Dump of assembler code for function eh2:
  29     #   0x00000000100009e0 <+0>:     lis     r2,4098
  30     #   ...
  31     #   0x0000000010000b04 <+292>:   add     r1,r1,r10
  32     #   0x0000000010000b08 <+296>:   blr
  33     #   0x0000000010000b0c <+300>:   .long 0x0
  34     #   0x0000000010000b10 <+304>:   .long 0x1000000
  35     #   0x0000000010000b14 <+308>:   .long 0x1000180
  36     #   End of assembler dump.
  37     #
  38     # Disable the Traceback Table generation, using the PowerPC specific
  39     # compiler option, so the test gdb_test_multiple "disassemble eh2" will
  40     # locate the address of the blr instruction not the last .long statement.
  41     if { [test_compiler_info "gcc-*"] } {
  42         set compile_flags {debug nopie additional_flags=-mtraceback=no}
  43     } elseif { [test_compiler_info "xlc-*"] } {
  44         set compile_flags {debug nopie additional_flags=-qtbtable=none}
  45     } elseif { [test_compiler_info "clang-*"] } {
  46         set compile_flags [list debug nopie additional_flags=-mllvm \
  47                                additional_flags=-xcoff-traceback-table=false]
  48     } else {
  49         set compile_flags {debug nopie }
  50     }
  51 } else {
  52     set compile_flags {debug nopie}
  53 }
  54
  55 if {[prepare_for_testing "failed to prepare" $testfile $srcfile \
  56          $compile_flags]} {
  57     return -1
  58 }
  59
  60 set address -1
  61
  62 # Get the address of the last insn in function eh2.
  63 gdb_test_multiple "disassemble eh2" "" {
  64     -re -wrap "($hex)\[^\r\n\]*\r\nEnd of assembler dump." {
  65         set address $expect_out(1,string)
  66         pass $gdb_test_name
  67     }
  68 }
  69
  70 if { $address == -1 } {
  71     return 0
  72 }
  73
  74 clean_restart ${binfile}
  75
  76 gdb_assert [gdb_breakpoint "*$address" no-message] "set breakpoint on address"
  77
  78 # The assert did not reproduce when running to main, and continuing to the
  79 # breakpoint, so instead, run to the breakpoint.
  80 gdb_run_cmd
  81
  82 gdb_test "" "Breakpoint .*" "hit breakpoint"