1# Copyright 2021-2023 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 the size of the $pc register as the user changes the selected 17# architecture. As no executable is provided then the size of the $pc 18# register is defined by the default target description selected by 19# GDB. 20# 21# This test ensures that GDB is selecting an RV32 default if the user 22# has forced the current architecture to be riscv:rv32. 23# 24# In all other cases the default will be RV64. 25 26if {![istarget "riscv*-*-*"]} { 27 verbose "Skipping ${gdb_test_file_name}." 28 return 29} 30 31# Start GDB with no executable. 32gdb_start 33 34# The tests are defined by a list of architecture names to switch too 35# and the expected size of $pc. The first list entry is special and 36# has an empty architecture string, this checks GDB's default value on 37# startup. 38foreach data {{"" 8} {"riscv:rv32" 4} {"riscv:rv64" 8} {"riscv" 8} \ 39 {"auto" 8}} { 40 set arch [lindex $data 0] 41 set size [lindex $data 1] 42 43 # Switch architecture. 44 if { $arch != "" && $arch != "auto" } { 45 gdb_test "set architecture $arch" \ 46 "The target architecture is set to \"$arch\"\\." 47 } elseif { $arch == "auto" } { 48 gdb_test "set architecture $arch" \ 49 "The target architecture is set to \"auto\" \\(currently \"riscv\"\\)\\." 50 } else { 51 set arch "default architecture" 52 } 53 54 # Check the size of $pc. 55 with_test_prefix "$arch" { 56 gdb_test "p sizeof (\$pc)" " = $size" \ 57 "size of \$pc register is $size" 58 } 59} 60