diff options
Diffstat (limited to 'src/boot/efi/meson.build')
| -rw-r--r-- | src/boot/efi/meson.build | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/src/boot/efi/meson.build b/src/boot/efi/meson.build new file mode 100644 index 0000000..2140151 --- /dev/null +++ b/src/boot/efi/meson.build @@ -0,0 +1,217 @@ +# SPDX-License-Identifier: LGPL-2.1+ + +efi_headers = files(''' + console.h + disk.h + graphics.h + linux.h + measure.h + pe.h + splash.h + util.h + shim.h +'''.split()) + +common_sources = ''' + disk.c + graphics.c + measure.c + pe.c + util.c +'''.split() + +systemd_boot_sources = ''' + boot.c + console.c + shim.c +'''.split() + +stub_sources = ''' + linux.c + splash.c + stub.c +'''.split() + +if conf.get('ENABLE_EFI') == 1 and get_option('gnu-efi') != 'false' + efi_cc = get_option('efi-cc') + if efi_cc.length() == 0 + efi_cc = cc.cmd_array() + endif + efi_ld = get_option('efi-ld') + if efi_ld == '' + efi_ld = find_program('ld', required: true) + endif + efi_incdir = get_option('efi-includedir') + + gnu_efi_path_arch = '' + foreach name : [gnu_efi_arch, EFI_MACHINE_TYPE_NAME] + if (gnu_efi_path_arch == '' and name != '' and + cc.has_header('@0@/@1@/efibind.h'.format(efi_incdir, name))) + gnu_efi_path_arch = name + endif + endforeach + + if gnu_efi_path_arch != '' and EFI_MACHINE_TYPE_NAME == '' + error('gnu-efi is available, but EFI_MACHINE_TYPE_NAME is unknown') + endif + + efi_libdir = get_option('efi-libdir') + if efi_libdir == '' + ret = run_command(efi_cc + ['-print-multi-os-directory']) + if ret.returncode() == 0 + path = join_paths('/usr/lib', ret.stdout().strip()) + ret = run_command('realpath', '-e', path) + if ret.returncode() == 0 + efi_libdir = ret.stdout().strip() + endif + endif + endif + + have_gnu_efi = gnu_efi_path_arch != '' and efi_libdir != '' +else + have_gnu_efi = false +endif + +if get_option('gnu-efi') == 'true' and not have_gnu_efi + error('gnu-efi support requested, but headers were not found') +endif + +if have_gnu_efi + efi_conf = configuration_data() + efi_conf.set_quoted('EFI_MACHINE_TYPE_NAME', EFI_MACHINE_TYPE_NAME) + efi_conf.set10('ENABLE_TPM', get_option('tpm')) + efi_conf.set('SD_TPM_PCR', get_option('tpm-pcrindex')) + + efi_config_h = configure_file( + output : 'efi_config.h', + configuration : efi_conf) + + objcopy = find_program('objcopy') + + efi_ldsdir = get_option('efi-ldsdir') + arch_lds = 'elf_@0@_efi.lds'.format(gnu_efi_path_arch) + if efi_ldsdir == '' + efi_ldsdir = join_paths(efi_libdir, 'gnuefi') + cmd = run_command('test', '-f', join_paths(efi_ldsdir, arch_lds)) + if cmd.returncode() != 0 + efi_ldsdir = efi_libdir + cmd = run_command('test', '-f', join_paths(efi_ldsdir, arch_lds)) + if cmd.returncode() != 0 + error('Cannot find @0@'.format(arch_lds)) + endif + endif + endif + + compile_args = ['-Wall', + '-Wextra', + '-std=gnu90', + '-nostdinc', + '-ggdb', '-O0', + '-fpic', + '-fshort-wchar', + '-ffreestanding', + '-fno-strict-aliasing', + '-fno-stack-protector', + '-Wsign-compare', + '-Wno-missing-field-initializers', + '-isystem', efi_incdir, + '-isystem', join_paths(efi_incdir, gnu_efi_path_arch), + '-include', efi_config_h, + '-include', version_h] + if efi_arch == 'x86_64' + compile_args += ['-mno-red-zone', + '-mno-sse', + '-mno-mmx', + '-DEFI_FUNCTION_WRAPPER', + '-DGNU_EFI_USE_MS_ABI'] + elif efi_arch == 'ia32' + compile_args += ['-mno-sse', + '-mno-mmx'] + endif + + efi_ldflags = ['-T', + join_paths(efi_ldsdir, arch_lds), + '-shared', + '-Bsymbolic', + '-nostdlib', + '-znocombreloc', + '-L', efi_libdir, + join_paths(efi_ldsdir, 'crt0-efi-@0@.o'.format(gnu_efi_path_arch))] + if efi_arch == 'aarch64' or efi_arch == 'arm' + # Aarch64 and ARM32 don't have an EFI capable objcopy. Use 'binary' + # instead, and add required symbols manually. + efi_ldflags += ['--defsym=EFI_SUBSYSTEM=0xa'] + efi_format = ['-O', 'binary'] + else + efi_format = ['--target=efi-app-@0@'.format(gnu_efi_arch)] + endif + + systemd_boot_objects = [] + stub_objects = [] + foreach file : common_sources + systemd_boot_sources + stub_sources + o_file = custom_target(file + '.o', + input : file, + output : file + '.o', + command : efi_cc + ['-c', '@INPUT@', '-o', '@OUTPUT@'] + + compile_args, + depend_files : efi_headers) + if (common_sources + systemd_boot_sources).contains(file) + systemd_boot_objects += o_file + endif + if (common_sources + stub_sources).contains(file) + stub_objects += o_file + endif + endforeach + + libgcc_file_name = run_command(efi_cc + ['-print-libgcc-file-name']).stdout().strip() + systemd_boot_efi_name = 'systemd-boot@0@.efi'.format(EFI_MACHINE_TYPE_NAME) + stub_efi_name = 'linux@0@.efi.stub'.format(EFI_MACHINE_TYPE_NAME) + no_undefined_symbols = find_program('no-undefined-symbols.sh') + + foreach tuple : [['systemd_boot.so', systemd_boot_efi_name, systemd_boot_objects], + ['stub.so', stub_efi_name, stub_objects]] + so = custom_target( + tuple[0], + input : tuple[2], + output : tuple[0], + command : [efi_ld, '-o', '@OUTPUT@'] + + efi_ldflags + tuple[2] + + ['-lefi', '-lgnuefi', libgcc_file_name]) + + if want_tests != 'false' + test('no-undefined-symbols-' + tuple[0], + no_undefined_symbols, + args : [so]) + endif + + stub = custom_target( + tuple[1], + input : so, + output : tuple[1], + command : [objcopy, + '-j', '.text', + '-j', '.sdata', + '-j', '.data', + '-j', '.dynamic', + '-j', '.dynsym', + '-j', '.rel*'] + + efi_format + + ['@INPUT@', '@OUTPUT@'], + install : true, + install_dir : bootlibdir) + + set_variable(tuple[0].underscorify(), so) + set_variable(tuple[0].underscorify() + '_stub', stub) + endforeach +endif + +############################################################ + +if have_gnu_efi + test_efi_disk_img = custom_target( + 'test-efi-disk.img', + input : [systemd_boot_so, stub_so_stub], + output : 'test-efi-disk.img', + command : [test_efi_create_disk_sh, '@OUTPUT@', + '@INPUT0@', '@INPUT1@', splash_bmp]) +endif |