gdb/testsuite/gdb.arch/thumb-prologue.exp

   1 # Copyright 2006-2020 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 # Test ARM/Thumb prologue analyzer.
  17
  18 if {![is_aarch32_target]} then {
  19     verbose "Skipping ARM prologue tests."
  20     return
  21 }
  22
  23 standard_testfile
  24
  25 # Don't use "debug", so that we don't have line information for the assembly
  26 # fragments.
  27 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {"additional_flags=-mthumb"}] != "" } {
  28     untested "ARM prologue tests"
  29     return -1
  30 }
  31
  32
  33 gdb_exit
  34 gdb_start
  35 gdb_reinitialize_dir $srcdir/$subdir
  36 gdb_load ${binfile}
  37
  38 #
  39 # Run to `main' where we begin our tests.
  40 #
  41
  42 if ![runto_main] then {
  43     untested "ARM prologue tests"
  44     return -1
  45 }
  46
  47 # Testcase for TPCS prologue.
  48
  49 gdb_breakpoint "* *(int *)tpcs_offset + (int) &tpcs_frame_1"
  50 gdb_test "continue" "Breakpoint .*, $hex in tpcs_frame_1 \\(\\)" \
  51     "continue to TPCS"
  52
  53 gdb_test "backtrace 10" \
  54         "#0\[ \t\]*$hex in tpcs_frame_1 .*\r\n#1\[ \t\]*$hex in tpcs_frame .*\r\n#2\[ \t\]*$hex in main.*" \
  55         "backtrace in TPCS"
  56
  57 gdb_test "info frame" \
  58         ".*Saved registers:.*r7 at.*r10 at.*r11 at.*lr at.*" \
  59         "saved registers in TPCS"
  60
  61
  62 # Testcase for "switching" the stack to the same stack in the prologue.
  63
  64 gdb_breakpoint "switch_stack_to_same"
  65
  66 gdb_test "continue" "Breakpoint .*, $hex in switch_stack_to_same \\(\\)" \
  67         "continue to switch_stack_to_same"
  68
  69 gdb_test "stepi 2" "in write_sp \\(\\)" "stepi over mov sp, sp"
  70
  71 gdb_test "backtrace 10" \
  72         "#0\[ \t\]*$hex in write_sp .*\r\n#1\[ \t\]*$hex in switch_stack_to_same .*\r\n#2\[ \t\]*$hex in main.*" \
  73         "backtrace in write_sp"
  74
  75 # Testcase for switching to another stack in the prologue.
  76
  77 gdb_breakpoint "switch_stack_to_other"
  78
  79 gdb_test "continue" "Breakpoint .*, $hex in switch_stack_to_other \\(\\)" \
  80         "continue to switch_stack_to_other"
  81
  82 gdb_test "stepi 2" "in write_sp \\(\\)" "stepi over mov sp, 128"
  83
  84 gdb_test "backtrace 10" \
  85         "#0\[ \t\]*$hex in write_sp .*\r\n#1\[ \t\]*$hex in switch_stack_to_other .*\r\n#2\[ \t\]*$hex in main.*" \
  86         "backtrace in write_sp, 2nd stop"