mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
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gem5: update to 7bfb7f3a43f382eb49853f47b140bfd6caad0fb8
The update is required to include 3c3ca64b5f0dd9eef7b1ce1c65cc6e8e9147dd38 otherwise baremetal does not on VExpress. baremetal: create a baremetal setup with crosstool-ng buildroot: improve directory location: move out/dl inside out/buildroot/download, and add a new out/buildroot/build level tagline: generalize, deliver more value than howto, since now howtos are starting to multiply rename all top scripts to separate words with hyphen more consistently, e.g. run-gdb instead of rungdb getvar: list all variables gem5: make m5out section to focus all releated information at Prevent m5term Text file busy when rebuilding gem5 while it is running.
This commit is contained in:
Ciro Santilli 六四事件 法轮功
151
build-baremetal
Executable file
151
build-baremetal
Executable file
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#!/usr/bin/env python3
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import glob
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import multiprocessing
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import os
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import shutil
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import sys
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import time
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import common
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def build_dir(subpath, gcc, cflags, entry_address, bootloader_obj, common_obj, bootloader=True):
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"""
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Build all .c and .S files in a given subpath of the baremetal source
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directory non recursively.
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Place outputs on the same subpath or the output directory.
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"""
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in_dir = os.path.join(common.baremetal_src_dir, subpath)
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out_dir = os.path.join(common.baremetal_out_dir, subpath)
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os.makedirs(out_dir, exist_ok=True)
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if bootloader:
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bootloader_cmd = [bootloader_obj]
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else:
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bootloader_cmd = []
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for in_basename in os.listdir(in_dir):
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in_path = os.path.join(in_dir, in_basename)
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if os.path.isfile(in_path) and os.path.splitext(in_basename)[1] in (common.c_ext, common.asm_ext):
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in_name = os.path.splitext(in_basename)[0]
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main_obj = os.path.join(common.baremetal_out_dir, subpath, '{}{}'.format(in_name, common.obj_ext))
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assert common.run_cmd(
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[gcc] +
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cflags +
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[
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'-c',
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'-o', main_obj,
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os.path.join(common.baremetal_src_dir, in_path),
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]
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) == 0
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assert common.run_cmd(
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[gcc] +
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cflags +
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[
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'-Wl,--section-start=.text={:#x}'.format(entry_address),
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'-o', os.path.join(common.baremetal_out_dir, subpath, in_name + common.baremetal_out_ext),
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'-T', os.path.join(common.baremetal_src_dir, 'link.ld'),
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] +
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bootloader_cmd +
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[
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common_obj,
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main_obj,
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]
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) == 0
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def get_argparse():
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parser = common.get_argparse(argparse_args={
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'description': 'Build the baremetal examples with crosstool-NG'
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})
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common.add_build_arguments(parser)
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return parser
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def main(args, extra_args=None):
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if args.clean:
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common.rmrf(common.baremetal_out_dir)
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else:
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common.raise_no_x86(args.arch)
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bootloader_obj = os.path.join(common.baremetal_out_lib_dir, 'bootloader{}'.format(common.obj_ext))
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common_obj = os.path.join(common.baremetal_out_lib_dir, 'common{}'.format(common.obj_ext))
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cflags = [
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'-ggdb3',
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'-mcpu={}'.format(common.mcpu),
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'-nostartfiles',
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'-O0',
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]
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if args.prebuilt:
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gcc = 'arm-none-eabi-gcc'
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else:
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os.environ['PATH'] = common.crosstool_ng_bin_dir + os.environ['PATH']
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gcc = common.get_toolchain_tool('gcc')
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if args.gem5:
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if common.machine == 'VExpress_GEM5_V1':
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entry_address = 0x80000000
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uart_address = 0x1c090000
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elif common.machine == 'RealViewPBX':
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entry_address = 0x10000
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uart_address = 0x10009000
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else:
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raise Exception('unknown machine: ' + common.machine)
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else:
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entry_address = 0x40000000
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uart_address = 0x09000000
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os.makedirs(common.baremetal_out_dir, exist_ok=True)
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os.makedirs(common.baremetal_out_lib_dir, exist_ok=True)
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assert common.run_cmd(
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[gcc] +
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cflags +
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[
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'-c',
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'-o', bootloader_obj,
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os.path.join(common.baremetal_src_lib_dir, '{}{}'.format(args.arch, common.asm_ext)),
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]
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) == 0
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assert common.run_cmd(
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[gcc] +
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cflags +
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[
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'-c',
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'-D',
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'UART0_ADDR={:#x}'.format(uart_address),
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'-o', common_obj,
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os.path.join(common.baremetal_src_lib_dir, 'common' + common.c_ext),
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]
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) == 0
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build_dir(
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'',
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gcc=gcc,
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cflags=cflags,
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entry_address=entry_address,
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bootloader_obj=bootloader_obj,
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common_obj=common_obj,
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)
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build_dir(
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os.path.join('arch', args.arch),
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gcc=gcc,
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cflags=cflags,
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entry_address=entry_address,
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bootloader_obj=bootloader_obj,
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common_obj=common_obj,
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)
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build_dir(
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os.path.join('arch', args.arch, 'no_bootloader'),
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gcc=gcc,
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cflags=cflags,
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entry_address=entry_address,
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bootloader_obj=bootloader_obj,
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common_obj=common_obj,
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bootloader=False,
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)
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return 0
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if __name__ == '__main__':
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parser = common.get_argparse(
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default_args={'baremetal': 'all'},
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)
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common.add_build_arguments(parser)
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args = common.setup(parser)
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start_time = time.time()
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exit_status = main(args)
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end_time = time.time()
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common.print_time(end_time - start_time)
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sys.exit(exit_status)
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