1# Copyright 2006-2015 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 18if {![istarget arm*-*]} then { 19 verbose "Skipping ARM prologue tests." 20 return 21} 22 23set testfile "thumb-prologue" 24set srcfile ${testfile}.c 25set binfile ${objdir}/${subdir}/${testfile} 26 27# Don't use "debug", so that we don't have line information for the assembly 28# fragments. 29if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {"additional_flags=-mthumb"}] != "" } { 30 untested "ARM prologue tests" 31 return -1 32} 33 34 35gdb_exit 36gdb_start 37gdb_reinitialize_dir $srcdir/$subdir 38gdb_load ${binfile} 39 40# 41# Run to `main' where we begin our tests. 42# 43 44if ![runto_main] then { 45 untested "ARM prologue tests" 46 return -1 47} 48 49# Testcase for TPCS prologue. 50 51gdb_breakpoint "* *(int *)tpcs_offset + (int) &tpcs_frame_1" 52gdb_test "continue" "Breakpoint .*, $hex in tpcs_frame_1 \\(\\)" \ 53 "continue to TPCS" 54 55gdb_test "backtrace 10" \ 56 "#0\[ \t\]*$hex in tpcs_frame_1 .*\r\n#1\[ \t\]*$hex in tpcs_frame .*\r\n#2\[ \t\]*$hex in main.*" \ 57 "backtrace in TPCS" 58 59gdb_test "info frame" \ 60 ".*Saved registers:.*r7 at.*r10 at.*r11 at.*lr at.*" \ 61 "saved registers in TPCS" 62 63 64# Testcase for "switching" the stack to the same stack in the prologue. 65 66gdb_breakpoint "switch_stack_to_same" 67 68gdb_test "continue" "Breakpoint .*, $hex in switch_stack_to_same \\(\\)" \ 69 "continue to switch_stack_to_same" 70 71gdb_test "stepi 2" "in write_sp \\(\\)" "stepi over mov sp, sp" 72 73gdb_test "backtrace 10" \ 74 "#0\[ \t\]*$hex in write_sp .*\r\n#1\[ \t\]*$hex in switch_stack_to_same .*\r\n#2\[ \t\]*$hex in main.*" \ 75 "backtrace in write_sp" 76 77# Testcase for switching to another stack in the prologue. 78 79gdb_breakpoint "switch_stack_to_other" 80 81gdb_test "continue" "Breakpoint .*, $hex in switch_stack_to_other \\(\\)" \ 82 "continue to switch_stack_to_other" 83 84gdb_test "stepi 2" "in write_sp \\(\\)" "stepi over mov sp, 128" 85 86gdb_test "backtrace 10" \ 87 "#0\[ \t\]*$hex in write_sp .*\r\n#1\[ \t\]*$hex in switch_stack_to_other .*\r\n#2\[ \t\]*$hex in main.*" \ 88 "backtrace in write_sp" 89