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

   1 # Copyright 2006-2024 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 require is_aarch32_target
  19
  20 standard_testfile
  21
  22 # Don't use "debug", so that we don't have line information for the assembly
  23 # fragments.
  24 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {"additional_flags=-mthumb"}] != "" } {
  25     untested "ARM prologue tests"
  26     return -1
  27 }
  28
  29
  30 clean_restart $binfile
  31
  32 #
  33 # Run to `main' where we begin our tests.
  34 #
  35
  36 if {![runto_main]} {
  37     return -1
  38 }
  39
  40 # Testcase for TPCS prologue.
  41
  42 gdb_breakpoint "* *(int *)tpcs_offset + (int) &tpcs_frame_1"
  43 gdb_test "continue" "Breakpoint .*, $hex in tpcs_frame_1 \\(\\)" \
  44     "continue to TPCS"
  45
  46 gdb_test "backtrace 10" \
  47         "#0\[ \t\]*$hex in tpcs_frame_1 .*\r\n#1\[ \t\]*$hex in tpcs_frame .*\r\n#2\[ \t\]*$hex in main.*" \
  48         "backtrace in TPCS"
  49
  50 gdb_test "info frame" \
  51         ".*Saved registers:.*r7 at.*r10 at.*r11 at.*lr at.*" \
  52         "saved registers in TPCS"
  53
  54
  55 # Testcase for "switching" the stack to the same stack in the prologue.
  56
  57 gdb_breakpoint "switch_stack_to_same"
  58
  59 gdb_test "continue" "Breakpoint .*, $hex in switch_stack_to_same \\(\\)" \
  60         "continue to switch_stack_to_same"
  61
  62 gdb_test "stepi 2" "in write_sp \\(\\)" "stepi over mov sp, sp"
  63
  64 gdb_test "backtrace 10" \
  65         "#0\[ \t\]*$hex in write_sp .*\r\n#1\[ \t\]*$hex in switch_stack_to_same .*\r\n#2\[ \t\]*$hex in main.*" \
  66         "backtrace in write_sp"
  67
  68 # Testcase for switching to another stack in the prologue.
  69
  70 gdb_breakpoint "switch_stack_to_other"
  71
  72 gdb_test "continue" "Breakpoint .*, $hex in switch_stack_to_other \\(\\)" \
  73         "continue to switch_stack_to_other"
  74
  75 gdb_test "stepi 2" "in write_sp \\(\\)" "stepi over mov sp, 128"
  76
  77 gdb_test "backtrace 10" \
  78         "#0\[ \t\]*$hex in write_sp .*\r\n#1\[ \t\]*$hex in switch_stack_to_other .*\r\n#2\[ \t\]*$hex in main.*" \
  79         "backtrace in write_sp, 2nd stop"