As far as I remember, the ARM simulator was finally removed from
binutils (and GCC) this February. The “proper” way to run the GCC test
suite for bare-metal ARM (arm-eabi-) targets now seems to be using QEMU.
Unfortunately, DejaGnu doesn’t include a default/example board
configuration for QEMU, so I’d like to propose adding one.
The attached file is the configuration I currently use. It works, but
any “pro tips” or suggestions for improvement are very welcome.
Best regards,
Jan
# Copyright (C) 1997-2019, 2020 Free Software Foundation, Inc.
#
# This file is part of DejaGnu. For ARM target simulation on QEMU.
#
# DejaGnu is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# DejaGnu is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with DejaGnu; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
# Load the generic configuration for this board. This will define a basic
# set of routines used to communicate with the board.
load_generic_config "sim"
# basic-sim.exp is a basic description for the standard Cygnus simulator.
load_base_board_description "basic-sim"
# Mark this as a simulator
set_board_info is_simulator 1
set_board_info is_remote 0
# Architecture
set_board_info target_arch arm
# Use semihosting for simple I/O
#set_board_info needs_status_wrapper 0
# The simulator doesn't return exit statuses and we need to indicate this.
set_board_info needs_status_wrapper 1
# Setup the simulator
set_board_info sim "qemu-system-arm"
set_board_info sim,options "-M versatilepb -cpu arm926 -nographic
-semihosting-config enable=on,target=native -kernel"
# This tells it which directory to look in for the simulator.
setup_sim arm
# No multilib flags are set by default.
process_multilib_options ""
# The compiler used to build for this board. This has *nothing* to do
# with what compiler is tested if we're testing gcc.
set_board_info compiler "[find_gcc]"
# The basic set of flags needed to build "hello world" for this
# board. This board uses libgloss and newlib.
set_board_info cflags "[libgloss_include_flags] [newlib_include_flags]"
set_board_info ldflags "[libgloss_link_flags] [newlib_link_flags]"
# This board doesn't use a linker script.
set_board_info ldscript ""
# And, it can't do arguments, and doesn't have real signals.
set_board_info noargs 1
set_board_info gdb,nosignals 1
# skip gdb.reverse
set_board_info gdb,can_reverse 0
set_board_info gdb,use_precord 0
# Setup the timeout
set_board_info gcc,timeout 600
