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https://github.com/cirosantilli/linux-kernel-module-cheat.git
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This commit is contained in:
Ciro Santilli 六四事件 法轮功
185
build-userland
185
build-userland
@@ -25,6 +25,13 @@ Build our compiled userland examples.
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help='''\
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Indicate that a given package is present in the root filesystem, which
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allows us to build examples that rely on it.
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''',
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)
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self.add_argument(
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'--has-all-packages',
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action='store_true',
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help='''\
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Indicate that all packages from --has-package are available.
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''',
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)
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self.add_argument(
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@@ -138,6 +145,7 @@ Default: build all examples that have their package dependencies met, e.g.:
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def build(self):
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build_dir = self.get_build_dir()
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has_packages = set(self.env['has_package'])
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has_all_packages = self.env['has_all_packages']
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ccflags = [
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'-I', self.env['root_dir'], LF,
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'-O0', LF,
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@@ -179,6 +187,10 @@ Default: build all examples that have their package dependencies met, e.g.:
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extra_deps=[self.env['common_h']],
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link=False,
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)
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if self.env['gcc_which'] == 'host':
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eigen_root = '/'
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else:
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eigen_root = self.env['buildroot_staging_dir']
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pkgs = {
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'eigen': {
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# TODO: was failing with:
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@@ -188,7 +200,7 @@ Default: build all examples that have their package dependencies met, e.g.:
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'ccflags': [
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'-I',
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os.path.join(
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self.env['buildroot_staging_dir'],
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eigen_root,
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'usr',
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'include',
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'eigen3'
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@@ -217,26 +229,19 @@ Default: build all examples that have their package dependencies met, e.g.:
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dirpath_relative_root = path_abs[rootdir_abs_len + 1:]
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dirpath_relative_root_components = dirpath_relative_root.split(os.sep)
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dirpath_relative_root_components_len = len(dirpath_relative_root_components)
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do_build_dir = True
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in_arch = False
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out_dir = os.path.join(
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build_dir,
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dirpath_relative_root
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)
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common_objs_dir = [common_obj]
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ccflags_after = []
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ccflags_dir = ccflags.copy()
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if dirpath_relative_root_components_len > 0:
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if dirpath_relative_root_components[0] == 'arch':
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if dirpath_relative_root_components_len > 1:
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if dirpath_relative_root_components[1] == self.env['arch']:
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in_arch = True
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else:
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do_build_dir = False
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else:
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do_build_dir = False
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in_libs = dirpath_relative_root_components[0] == 'libs'
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if do_build_dir:
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out_dir = os.path.join(
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build_dir,
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dirpath_relative_root
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)
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common_objs_dir = [common_obj]
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ccflags_dir = ccflags.copy()
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if dirpath_relative_root_components in ('gcc', 'kernel_modules', 'linux'):
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if dirpath_relative_root_components[0] in (
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'gcc',
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'kernel_modules',
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'linux',
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):
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cstd = 'gnu11'
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cxxstd = 'gnu++17'
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else:
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@@ -244,90 +249,94 @@ Default: build all examples that have their package dependencies met, e.g.:
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cxxstd = self.default_cxxstd
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# -pedantic complains even if we use -std=gnu11.
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ccflags_dir.extend(['-pedantic', LF])
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if in_arch:
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ccflags_dir.extend([
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'-I', os.path.join(self.env['userland_source_arch_arch_dir']), LF,
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'-I', os.path.join(self.env['userland_source_arch_dir']), LF,
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'-fno-pie', LF,
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'-no-pie', LF,
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])
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if 'freestanding' in dirpath_relative_root_components:
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common_objs_dir = []
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ccflags_dir.extend([
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'-ffreestanding', LF,
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'-nostdlib', LF,
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'-static', LF,
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])
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else:
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if 'c' in dirpath_relative_root_components:
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common_objs_dir = []
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if dirpath_relative_root_components[0] == 'arch':
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if dirpath_relative_root_components_len > 1:
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if dirpath_relative_root_components[1] == self.env['arch']:
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ccflags_dir.extend([
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'-I', os.path.join(self.env['userland_source_arch_arch_dir']), LF,
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'-I', os.path.join(self.env['userland_source_arch_dir']), LF,
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'-fno-pie', LF,
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'-no-pie', LF,
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])
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if 'freestanding' in dirpath_relative_root_components:
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common_objs_dir = []
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ccflags_dir.extend([
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'-ffreestanding', LF,
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'-nostdlib', LF,
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'-static', LF,
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])
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else:
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if 'c' in dirpath_relative_root_components:
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common_objs_dir = []
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else:
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common_objs_dir = [common_obj_asm]
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if self.env['arch'] == 'arm':
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ccflags_dir.extend([
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'-Xassembler', '-mcpu=cortex-a72', LF,
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# To prevent:
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# > vfp.S: Error: selected processor does not support <FPU instruction> in ARM mode
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# https://stackoverflow.com/questions/41131432/cross-compiling-error-selected-processor-does-not-support-fmrx-r3-fpexc-in/52875732#52875732
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# We aim to take the most extended mode currently available that works on QEMU.
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'-Xassembler', '-mfpu=crypto-neon-fp-armv8.1', LF,
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'-Xassembler', '-meabi=5', LF,
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# Treat inline assembly as arm instead of thumb
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# The opposite of -mthumb.
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'-marm', LF,
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# Make gcc generate .syntax unified for inline assembly.
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# However, it gets ignored if -marm is given, which a GCC bug that was recently fixed:
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# https://stackoverflow.com/questions/54078112/how-to-write-syntax-unified-ual-armv7-inline-assembly-in-gcc/54132097#54132097
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# So we just write divided inline assembly for now.
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'-masm-syntax-unified', LF,
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])
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else:
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common_objs_dir = [common_obj_asm]
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if self.env['arch'] == 'arm':
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ccflags_dir.extend([
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'-Xassembler', '-mcpu=cortex-a72', LF,
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# To prevent:
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# > vfp.S: Error: selected processor does not support <FPU instruction> in ARM mode
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# https://stackoverflow.com/questions/41131432/cross-compiling-error-selected-processor-does-not-support-fmrx-r3-fpexc-in/52875732#52875732
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# We aim to take the most extended mode currently available that works on QEMU.
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'-Xassembler', '-mfpu=crypto-neon-fp-armv8.1', LF,
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'-Xassembler', '-meabi=5', LF,
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# Treat inline assembly as arm instead of thumb
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# The opposite of -mthumb.
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'-marm', LF,
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# Make gcc generate .syntax unified for inline assembly.
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# However, it gets ignored if -marm is given, which a GCC bug that was recently fixed:
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# https://stackoverflow.com/questions/54078112/how-to-write-syntax-unified-ual-armv7-inline-assembly-in-gcc/54132097#54132097
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# So we just write divided inline assembly for now.
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'-masm-syntax-unified', LF,
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])
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for in_filename in in_filenames:
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path_relative_root = os.path.join(dirpath_relative_root, in_filename)
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if path_relative_root == common_obj_asm_relpath:
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continue
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in_path = os.path.join(path, in_filename)
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in_name, in_ext = os.path.splitext(in_filename)
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out_path = os.path.join(
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out_dir,
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in_name + self.env['userland_build_ext']
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)
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ccflags_file = ccflags_dir.copy()
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ccflags_after = []
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if in_libs:
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pkg_key = in_name.split('_')[0]
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if pkg_key in pkgs:
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if pkg_key not in has_packages:
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continue
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else:
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continue
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elif dirpath_relative_root_components[0] == 'libs':
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if dirpath_relative_root_components_len > 1:
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pkg_key = dirpath_relative_root_components[1]
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if not (has_all_packages or pkg_key in has_packages):
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continue
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pkg = pkgs[pkg_key]
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if 'ccflags' in pkg:
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ccflags_file.extend(pkg['ccflags'])
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ccflags_dir.extend(pkg['ccflags'])
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else:
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pkg_config_output = subprocess.check_output([
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self.env['buildroot_pkg_config'],
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self.env['pkg_config'],
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'--cflags',
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pkg_key
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]).decode()
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ccflags_file.extend(self.sh.shlex_split(pkg_config_output))
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ccflags_dir.extend(self.sh.shlex_split(pkg_config_output))
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if 'ccflags_after' in pkg:
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ccflags_file.extend(pkg['ccflags_after'])
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ccflags_dir.extend(pkg['ccflags_after'])
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else:
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pkg_config_output = subprocess.check_output([
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self.env['buildroot_pkg_config'],
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self.env['pkg_config'],
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'--libs',
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pkg_key
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]).decode()
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ccflags_after.extend(self.sh.shlex_split(pkg_config_output))
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error = thread_pool.submit({
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'in_path': in_path,
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'out_path': out_path,
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'ccflags': ccflags_file,
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'cstd': cstd,
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'cxxstd': cxxstd,
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'extra_objs': common_objs_dir,
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'ccflags_after': ccflags_after,
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})
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if error is not None:
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raise ExitLoop()
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for in_filename in in_filenames:
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path_relative_root = os.path.join(dirpath_relative_root, in_filename)
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if path_relative_root == common_obj_asm_relpath:
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continue
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in_path = os.path.join(path, in_filename)
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in_name, in_ext = os.path.splitext(in_filename)
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out_path = os.path.join(
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out_dir,
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in_name + self.env['userland_build_ext']
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)
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error = thread_pool.submit({
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'in_path': in_path,
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'out_path': out_path,
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'ccflags': ccflags_dir,
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'cstd': cstd,
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'cxxstd': cxxstd,
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'extra_objs': common_objs_dir,
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'ccflags_after': ccflags_after,
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})
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if error is not None:
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raise ExitLoop()
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except ExitLoop:
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pass
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error = thread_pool.join()
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