mirror of https://github.com/flysand7/ciabatta.git
312 lines
11 KiB
Python
Executable File
312 lines
11 KiB
Python
Executable File
#!/usr/bin/env python3
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import argparse # Parsing command-line args
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import platform # Checking current OS
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import shutil
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import os
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import sys
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import pyjson5
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import re
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# Colors
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class colors:
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grey='\033[38;5;243m'
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cyan='\033[38;5;80m'
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red='\033[38;5;196m'
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purple='\033[38;5;141m'
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yellow='\033[38;5;220m'
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green='\033[32m'
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reset='\033[0m'
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def print_step(step):
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print(f'{colors.green}==>{colors.reset} {step}', end='')
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# Parse command line arguments
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arg_parser = argparse.ArgumentParser('build.py')
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arg_parser.add_argument('--clean', action='store_true', help='Remove all object files and binaries')
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arg_parser.add_argument('--test', help='Compile ciabatta executable with given file')
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arg_parser.add_argument('--mode', '-m', choices=['debug', 'release'], default='debug', help='Select build configuration')
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arg_parser.add_argument('--target', '-t', help='Select target OS (default=host)')
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arg_parser.add_argument('--compiler', '-c', choices=['clang', 'cuik'], default='clang', help='Select compiler')
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arg_parser.add_argument('--cflags', nargs='*', default=[], help='Pass additional compiler flags')
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args = arg_parser.parse_args()
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compiler = args.compiler
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# Perform cleaning if required
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def rm(path):
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if os.path.exists(path):
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os.remove(path)
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if args.clean:
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if os.path.exists('bin'):
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shutil.rmtree('bin')
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if os.path.exists('lib'):
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shutil.rmtree('lib')
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rm(os.path.join('src', 'ciabatta.c'))
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rm('a')
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rm('a.exe')
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rm('a.ilk')
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rm('a.pdb')
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sys.exit(0)
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# Check host OS
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print_step('Performing basic checks\n')
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target = args.target
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if target is None:
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target = platform.system().lower()
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target_colored = f'{colors.cyan}{target}{colors.reset}'
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print(f" * Compiling for host OS: '{target_colored}'")
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if not os.path.exists(os.path.join('src', target)):
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print(colors.red, f" ERROR: OS '{colors.cyan}{target}{colors.red}' isn't implemented.", colors.reset)
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sys.exit(1)
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# Add compiler to dependencies
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dependencies = [
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'nasm',
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'llvm-ar'
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]
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dependencies.append(args.compiler)
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# Figure out the flags
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includes = ['src/include']
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cc = args.compiler
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cc_defines = []
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cc_flags = ['-nostdlib']
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crt_file = 'crt.lib'
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lib_file = 'cia.lib'
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dl_file = 'ld-cia.so'
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if args.mode == 'release':
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cc_flags.append('-O2')
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cc_defines.append('NDEBUG')
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else: # 'debug'
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cc_flags.append('-g')
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cc_flags.append('-O0')
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cc_defines.append('_DEBUG')
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if target != 'windows':
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cc_flags.append('-fpic')
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if target == 'linux':
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includes.append('src/include/linux')
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# Check dependencies
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print_step('Checking dependencies... ')
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for dependency in dependencies:
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if shutil.which(dependency) is None:
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print(colors.red, f"\n -> [ERROR] Missing dependency: '{dependency}'", colors.reset)
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sys.exit(1)
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print(colors.green, 'OK', colors.reset)
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# Generate TinyRT headers for the target platform
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print_step(f'Generating TinyRT header for: {target_colored}... ')
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tinyrt_config_path = os.path.join('src', target, 'tinyrt.json')
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tinyrt_apis = []
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try:
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with open(tinyrt_config_path, 'r') as tinyrt_config_file:
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string = tinyrt_config_file.read()
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json = '{' + string + '}'
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tinyrt_config = pyjson5.loads(json)
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except Exception as error:
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print(colors.red, f"\n -> [ERROR] reading file '{tinyrt_config_path}'")
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print(f" * {error}", colors.reset)
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sys.exit(1)
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tinyrt_header_path = os.path.join('src', target, 'tinyrt-iface.h')
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try:
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with open(tinyrt_header_path, 'w') as tinyrt_header_file:
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tinyrt_header_file.write('\n')
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tinyrt_header_file.write(f'// This file is AUTO-GENERATED from {tinyrt_config_path}\n')
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tinyrt_header_file.write('\n')
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for tinyrt_api in tinyrt_config:
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api_name = tinyrt_api
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is_defined = tinyrt_config[tinyrt_api]
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if is_defined:
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tinyrt_apis.append(api_name)
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is_defined_int = 1 if is_defined else 0
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tinyrt_header_file.write(f'#define _{api_name.upper()} {is_defined_int}\n')
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except Exception as error:
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print(colors.red, f" -> [ERROR] writing to file '{tinyrt_header_path}'")
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print(f" * {error}", colors.reset)
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sys.exit(1)
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print(colors.green, 'OK', colors.reset)
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# Generate ciabatta header for the target platform and configuration
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print_step('Generating ciabatta.c\n')
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library_config_path = os.path.join('src', 'library.json')
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try:
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with open(library_config_path, 'r') as library_config_file:
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string = library_config_file.read()
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json = '{' + string + '}'
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library_config = pyjson5.loads(json)
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except Exception as error:
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print(colors.red, f" ERROR when reading file '{library_config_path}':")
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print(f" {error}", colors.reset)
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sys.exit(1)
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ciabatta_header_path = os.path.join('src', 'ciabatta.c')
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try:
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with open(ciabatta_header_path, 'w') as ciabatta_header:
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# Write heading
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ciabatta_header.write('\n')
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ciabatta_header.write('// This file is AUTO-GENERATED by library.json\n')
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ciabatta_header.write('\n')
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# Write main include
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ciabatta_header.write('#include <cia-def.h>\n')
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ciabatta_header.write('\n')
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# Write platform includes
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ciabatta_header.write('// Platform-dependent sources\n')
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platform_config = None
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for platform in library_config['platforms']:
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if platform['name'] == target:
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platform_config = platform
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if platform_config is None:
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print(colors.red, f" ERROR: library config doesn't contain configuration for platform {target}", colors.reset, sep='')
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for include in platform_config['includes']:
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include_path = platform_config['path']
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ciabatta_header.write(f'#include "{include_path}/{include}"\n')
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ciabatta_header.write(f'#include "{target}/tinyrt-iface.h"\n')
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ciabatta_header.write(f'#include <tinyrt.h>\n')
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for tinyrt_source in platform_config['tinyrt']:
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ciabatta_header.write(f'#include "{target}/{tinyrt_source}"\n')
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ciabatta_header.write('\n')
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# Write module includes
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ciabatta_header.write('// Forward declarations')
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for include in library_config['includes']:
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ciabatta_header.write(f'#include <{include}>\n')
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ciabatta_header.write('\n')
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# Write module sources
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mod_exports = []
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requirements_satisfied = True
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for api in library_config['apis']:
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api_name = api['name']
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api_path = api['path']
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if api_name in library_config['export']:
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reqs_satisfied = True
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# Check API dependencies
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for req in api['reqs']:
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if req in tinyrt_apis:
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continue
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elif req in mod_exports:
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continue
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reqs_satisfied = False
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break
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if not reqs_satisfied:
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print(colors.red, f" * Not exporting API '{api_name}'", colors.reset, sep='')
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requirements_satisfied = False
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else:
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print(colors.green, f" * Exporting API '{api_name}'", colors.reset, sep='')
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ciabatta_header.write(f'// Module {api_name}\n')
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mod_exports.append(api_name)
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for include in api['includes']:
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ciabatta_header.write(f'#include "{api_path}/{include}"\n')
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if not requirements_satisfied:
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sys.exit(1)
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except Exception as error:
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print(colors.red, f" ERROR writing file '{ciabatta_header_path}':", sep='')
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print(f" {error}", colors.reset)
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sys.exit(1)
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print_step('Generating cia-conf.h\n')
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def path(str):
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l = str.split('/')
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return os.path.join(*l)
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def quote(s):
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return '"' + s + '"'
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def prefix(prefix):
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return (lambda s: prefix + s)
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cc_flags_str = ' '.join(
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cc_flags +
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list(map(prefix('-D '), cc_defines)) +
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list(map(prefix('-I '), map(quote, includes))))
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try:
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with open(os.path.join('src', 'include', 'cia-conf.h'), 'w') as conf_file:
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os_config = open(os.path.join('src', target, 'conf.h'))
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conf_file.write('\n')
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conf_file.write('// This file is AUTO-GENERATED\n')
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conf_file.write('// See os folder (e.g. src/linux) for conf.h file\n')
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conf_file.write(os_config.read())
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os_config.close()
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except Exception as error:
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print(colors.red, f" ERROR writing file '{ciabatta_header_path}':", sep='')
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print(f" {error}", colors.reset)
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sys.exit(1)
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def run(cmdline):
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cmdline_colored = re.sub(r'"(.+?)"', f'{colors.grey}"\\1"{colors.reset}', cmdline)
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cmdline_colored = re.sub(r'^([a-zA-Z0-9-_]*)', f'{colors.yellow}\\1{colors.reset}', cmdline_colored)
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print(' $', cmdline_colored)
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code = os.system(cmdline)
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if code != 0:
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sys.exit(code)
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def assemble(src, out):
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format = 'elf64'
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if target == 'windows':
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format = 'win64'
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cmdline = f'nasm -f "{format}" "{path(src)}" -o "{path(out)}"'
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run(cmdline)
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def compile(srcs, out, extra_flags = ''):
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if cc == 'cuik' and out.endswith('.o'):
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out = out[:-2]
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flags = cc_flags_str + ' ' + extra_flags + ' ' + ' '.join(args.cflags)
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inputs = ' '.join(map(quote, map(path, srcs)))
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cmdline = f'{cc} {flags} {inputs} -o {quote(path(out))}'
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run(cmdline)
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def archive(srcs, out):
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inputs = ' '.join(map(quote, srcs))
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cmdline = f'llvm-ar -rcs {quote(out)} {inputs}'
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run(cmdline)
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# Ciabatta build spec
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if not os.path.exists('lib'):
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os.mkdir('lib')
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if not os.path.exists('bin'):
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os.mkdir('bin')
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cia_lib = f'lib/{lib_file}'
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crt_lib = f'lib/{crt_file}'
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dl_lib = f'lib/{dl_file}'
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dl_flags = [
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'-shared',
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'-nostdlib',
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'-mno-sse',
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'-ffreestanding',
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'-fno-stack-protector',
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'-Wl,-e,_dlstart',
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'-Wl,--sort-section,alignment',
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'-Wl,--sort-common',
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'-Wl,--gc-sections',
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'-Wl,--hash-style=both',
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'-Wl,--no-undefined',
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'-Wl,--exclude-libs=ALL',
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]
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if target == 'linux':
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print_step(f'Compiling {dl_lib}\n')
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assemble('src/loader/loader-entry.asm', 'bin/loader-entry.o')
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compile(['bin/loader-entry.o', 'src/loader/loader-self-reloc.c', 'src/loader/loader.c'], dl_lib,
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' '.join(dl_flags))
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print_step(f'Compiling {crt_file}\n')
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if target == 'linux':
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assemble('src/linux/crt-entry.asm', 'bin/crt-entry.o')
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compile(['src/linux/crt-ctors.c'], 'bin/crt-ctors.o', '-c')
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archive(['bin/crt-ctors.o', 'bin/crt-entry.o'], crt_lib)
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elif target == 'windows':
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assemble('src/windows/chkstk.asm', 'bin/chkstk.o')
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compile(['src/windows/crt-entry.c'], 'bin/crt-entry.o', '-c')
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archive(['bin/crt-entry.o', 'bin/chkstk.o'], crt_lib)
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print_step(f'Compiling {lib_file}\n')
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compile(['src/ciabatta.c'], 'bin/ciabatta.o', '-c')
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archive(['bin/ciabatta.o'], cia_lib)
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if args.test:
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if target == 'linux':
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compile([args.test, crt_lib, cia_lib], 'a', f'-pie -Wl,-dynamic-linker,{dl_lib}')
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elif target == 'windows':
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compile([args.test, crt_lib, cia_lib], 'a.exe', '-lkernel32.lib')
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