diff options
Diffstat (limited to 'lib/mlibc/meson.build')
| -rw-r--r-- | lib/mlibc/meson.build | 528 |
1 files changed, 528 insertions, 0 deletions
diff --git a/lib/mlibc/meson.build b/lib/mlibc/meson.build new file mode 100644 index 0000000..7e0956d --- /dev/null +++ b/lib/mlibc/meson.build @@ -0,0 +1,528 @@ +project('mlibc', default_options: ['warning_level=2', 'cpp_std=c++20']) + +fs = import('fs') + +rtdl_include_dirs = [ + include_directories('options/internal/include'), + include_directories('options/internal' / host_machine.cpu_family() + '-include'), + include_directories('options/rtdl' / host_machine.cpu_family()), + include_directories('options/rtdl/include'), +] +libc_include_dirs = [ + include_directories('options/internal/include'), + include_directories('options/elf/include'), + include_directories('options/lsb/include'), + include_directories('options/rtdl/include'), + include_directories('options/rtdl' / host_machine.cpu_family()), + include_directories('options/internal' / host_machine.cpu_family() + '-include') +] + +rtdl_sources = [ ] +rtdl_dso_sources = [ ] +libc_sources = [ ] +libc_sublibs = [ ] + +libc_deps = [ ] +rtdl_deps = [ ] + +headers_only = get_option('headers_only') +no_headers = get_option('mlibc_no_headers') +library_type = get_option('default_library') +build_tests = get_option('build_tests') +build_tests_host_libc = get_option('build_tests_host_libc') +disable_ansi_option = get_option('disable_ansi_option') +disable_posix_option = get_option('disable_posix_option') +disable_linux_option = get_option('disable_linux_option') +disable_iconv_option = get_option('disable_iconv_option') +disable_intl_option = get_option('disable_intl_option') +disable_glibc_option = get_option('disable_glibc_option') +disable_crypt_option = get_option('disable_crypt_option') +disable_bsd_option = get_option('disable_bsd_option') +disable_libgcc_dependency = get_option('disable_libgcc_dependency') +internal_conf = configuration_data() +mlibc_conf = configuration_data() + +if not headers_only + cshim_dep = dependency('cshim', + required: false, + fallback: ['cshim', 'cshim_dep']) + libc_deps += cshim_dep + rtdl_deps += cshim_dep + + cxxshim_dep = dependency('cxxshim', + required: false, + fallback: ['cxxshim', 'cxxshim_dep']) + libc_deps += cxxshim_dep + rtdl_deps += cxxshim_dep + + frigg_dep = dependency( + 'frigg', + default_options: ['frigg_no_install=true'], + fallback: ['frigg', 'frigg_dep'], + ) + libc_deps += frigg_dep + rtdl_deps += frigg_dep + + add_languages('c', 'cpp') + c_compiler = meson.get_compiler('c') + cpp_compiler = meson.get_compiler('cpp') + + add_project_arguments('-Wno-unused-function', '-D__MLIBC_BUILDING_MLIBC', language: ['c', 'cpp']) + add_project_arguments('-nostdinc', '-fno-builtin', '-ffreestanding', language: ['c', 'cpp']) + add_project_arguments('-Werror=misleading-indentation', language: ['c', 'cpp']) + add_project_arguments('-fno-rtti', '-fno-exceptions', language: 'cpp') + add_project_link_arguments('-nostdlib', language: ['c', 'cpp']) + + if not cshim_dep.found() + searchdirs = run_command(c_compiler.cmd_array(), '-print-search-dirs', + check: true).stdout() + searchdirs_arr = searchdirs.split('\n') + searchline = 'install: ' + ccdir = '' + if c_compiler.get_id() == 'clang' + searchline = 'libraries: =' + endif + + foreach line : searchdirs_arr + if line.startswith(searchline) + ccdir = line.strip(searchline) + ccdir = ccdir.split(':')[0] + break + endif + endforeach + + if ccdir == '' + error('could not find compiler-specific header directory') + endif + + if c_compiler.get_id() == 'gcc' and fs.exists(ccdir / 'include-fixed') + rtdl_include_dirs += include_directories(ccdir / 'include-fixed') + libc_include_dirs += include_directories(ccdir / 'include-fixed') + endif + + rtdl_include_dirs += include_directories(ccdir / 'include') + libc_include_dirs += include_directories(ccdir / 'include') + endif + + if not cxxshim_dep.found() + cplusplus_include_path = [] + + c_output = run_command(c_compiler.cmd_array(), '-E', '-v', '-x', 'c', + '/dev/null', '-o', '-', + capture: true, + check: true).stderr().split('\n') + + cpp_output = run_command(cpp_compiler.cmd_array(), '-E', '-v', '-x', + 'c++', '/dev/null', '-o', '-', + capture: true, + check: true).stderr().split('\n') + + c_relevant_lines = [] + + relevantmarker = '#include <...>' + relevant_started = false + + foreach line : c_output + if relevant_started + if not line.startswith(' ') + break + endif + c_relevant_lines += line.strip() + elif line.startswith(relevantmarker) + relevant_started = true + endif + endforeach + + relevant_started = false + + foreach line : cpp_output + if relevant_started + if not line.startswith(' ') + break + endif + debug('maybe relevant', line) + stripped = line.strip() + if stripped in c_relevant_lines + debug('not relevant (is C)', line) + continue + endif + cplusplus_include_path += include_directories(stripped) + elif line.startswith(relevantmarker) + relevant_started = true + endif + endforeach + + rtdl_include_dirs += cplusplus_include_path + libc_include_dirs += cplusplus_include_path + endif +endif + +internal_conf.set_quoted('MLIBC_SYSTEM_NAME', host_machine.system()) +internal_conf.set10('MLIBC_MAP_DSO_SEGMENTS', false) +internal_conf.set10('MLIBC_MMAP_ALLOCATE_DSO', false) +internal_conf.set10('MLIBC_MAP_FILE_WINDOWS', false) +internal_conf.set10('MLIBC_DEBUG_ALLOCATOR', get_option('debug_allocator')) + +#---------------------------------------------------------------------------------------- +# Configuration based on sysdeps. +#---------------------------------------------------------------------------------------- + +# Process sysdeps first, as sysdeps might want to disable unsupported options. +provides_bits_syscall_h = false +if host_machine.system() == 'linux' + provides_bits_syscall_h = true + rtdl_include_dirs += include_directories('sysdeps/linux/include') + libc_include_dirs += include_directories('sysdeps/linux/include') + + if not headers_only + if get_option('linux_kernel_headers') == '' + error('linux_kernel_headers is not set') + endif + + if not import('fs').is_dir(get_option('linux_kernel_headers')) + error('linux_kernel_headers is not set to a valid path') + endif + + rtdl_include_dirs += include_directories(get_option('linux_kernel_headers')) + libc_include_dirs += include_directories(get_option('linux_kernel_headers')) + endif + + internal_conf.set10('MLIBC_MAP_DSO_SEGMENTS', true) + internal_conf.set10('MLIBC_MMAP_ALLOCATE_DSO', true) + subdir('sysdeps/linux') +elif host_machine.system() == 'aero' + rtdl_include_dirs += include_directories('sysdeps/aero/include') + libc_include_dirs += include_directories('sysdeps/aero/include') + internal_conf.set10('MLIBC_MAP_DSO_SEGMENTS', true) + internal_conf.set10('MLIBC_MAP_FILE_WINDOWS', true) + subdir('sysdeps/aero') +elif host_machine.system() == 'hyra' + rtdl_include_dirs += include_directories('sysdeps/hyra/include') + libc_include_dirs += include_directories('sysdeps/hyra/include') + internal_conf.set10('MLIBC_MAP_DSO_SEGMENTS', true) + internal_conf.set10('MLIBC_MAP_FILE_WINDOWS', true) + subdir('sysdeps/hyra') +elif host_machine.system() == 'managarm' + # TODO: Adopt the include_directories() commands from the managarm meson.build. + rtdl_include_dirs += include_directories('sysdeps/managarm/include') + libc_include_dirs += include_directories('sysdeps/managarm/include') + internal_conf.set10('MLIBC_MAP_DSO_SEGMENTS', true) + internal_conf.set10('MLIBC_MMAP_ALLOCATE_DSO', true) + internal_conf.set10('MLIBC_MAP_FILE_WINDOWS', true) + subdir('sysdeps/managarm') +elif host_machine.system() == 'ironclad' + disable_linux_option = true + rtdl_include_dirs += include_directories('sysdeps/ironclad/include') + libc_include_dirs += include_directories('sysdeps/ironclad/include') + subdir('sysdeps/ironclad') +elif host_machine.system() == 'keyronex' + rtdl_include_dirs += include_directories('sysdeps/keyronex/include') + libc_include_dirs += include_directories('sysdeps/keyronex/include') + internal_conf.set10('MLIBC_MAP_DSO_SEGMENTS', true) + internal_conf.set10('MLIBC_MAP_FILE_WINDOWS', true) + subdir('sysdeps/keyronex') +elif host_machine.system() == 'lyre' + disable_linux_option = true + rtdl_include_dirs += include_directories('sysdeps/lyre/include') + libc_include_dirs += include_directories('sysdeps/lyre/include') + subdir('sysdeps/lyre') +elif host_machine.system() == 'lemon' + rtdl_include_dirs += include_directories('sysdeps/lemon/include') + libc_include_dirs += include_directories('sysdeps/lemon/include') + subdir('sysdeps/lemon') +elif host_machine.system() == 'dripos' + disable_linux_option = true + rtdl_include_dirs += include_directories('sysdeps/dripos/include') + libc_include_dirs += include_directories('sysdeps/dripos/include') + subdir('sysdeps/dripos') +else + error('No sysdeps defined for OS: ' + host_machine.system()) +endif + +#---------------------------------------------------------------------------------------- +# Configuration based on enabled options. +#---------------------------------------------------------------------------------------- + +mlibc_conf.set10('__MLIBC_ANSI_OPTION', not disable_ansi_option) +mlibc_conf.set10('__MLIBC_POSIX_OPTION', not disable_posix_option) +mlibc_conf.set10('__MLIBC_LINUX_OPTION', not disable_linux_option) +mlibc_conf.set10('__MLIBC_INTL_OPTION', not disable_intl_option) +mlibc_conf.set10('__MLIBC_ICONV_OPTION', not disable_iconv_option) +mlibc_conf.set10('__MLIBC_GLIBC_OPTION', not disable_glibc_option) +mlibc_conf.set10('__MLIBC_CRYPT_OPTION', not disable_crypt_option) +mlibc_conf.set10('__MLIBC_BSD_OPTION', not disable_bsd_option) +mlibc_conf.set10('__MLIBC_SYSDEP_HAS_BITS_SYSCALL_H', provides_bits_syscall_h) + +if not disable_ansi_option + rtdl_include_dirs += include_directories('options/ansi/include') + libc_include_dirs += include_directories('options/ansi/include') +endif + +if not disable_posix_option + rtdl_include_dirs += include_directories('options/posix/include') + libc_include_dirs += include_directories('options/posix/include') +endif + +if not disable_iconv_option + rtdl_include_dirs += include_directories('options/iconv/include') + libc_include_dirs += include_directories('options/iconv/include') +endif + +if not disable_intl_option + libc_include_dirs += include_directories('options/intl/include') +endif + +if not disable_linux_option + if not headers_only + if get_option('linux_kernel_headers') == '' + error('linux_kernel_headers is not set') + endif + + if not import('fs').is_dir(get_option('linux_kernel_headers')) + error('linux_kernel_headers is not set to a valid path') + endif + endif + + rtdl_include_dirs += include_directories('options/linux/include') + libc_include_dirs += include_directories('options/linux/include') + rtdl_include_dirs += include_directories(get_option('linux_kernel_headers')) + libc_include_dirs += include_directories(get_option('linux_kernel_headers')) +endif + +if not disable_glibc_option + rtdl_include_dirs += include_directories('options/glibc/include') + libc_include_dirs += include_directories('options/glibc/include') +endif + +if not disable_crypt_option + libc_include_dirs += include_directories('options/crypt/include') +endif + +if not disable_bsd_option + rtdl_include_dirs += include_directories('options/bsd/include') + libc_include_dirs += include_directories('options/bsd/include') +endif + +rtdl_include_dirs += include_directories('options/elf/include') +libc_include_dirs += include_directories('options/elf/include') +libc_include_dirs += include_directories('.') + +#---------------------------------------------------------------------------------------- + +configure_file(input: 'internal-config.h.in', + output: 'internal-config.h', + configuration: internal_conf) + +configure_file(input: 'mlibc-config.h.in', + output: 'mlibc-config.h', + configuration: mlibc_conf, + install: not no_headers, + install_dir: get_option('includedir')) + +internal_sources = [ + 'options/internal/generic/allocator.cpp', + 'options/internal/generic/charcode.cpp', + 'options/internal/generic/charset.cpp', + 'options/internal/generic/debug.cpp', + 'options/internal/generic/ensure.cpp', + 'options/internal/generic/essential.cpp', + 'options/internal/generic/frigg.cpp', + 'options/internal/generic/global-config.cpp', + 'options/internal/generic/inline-emitter.cpp', + 'options/internal/generic/locale.cpp', + 'options/internal/generic/sigset.cpp', + 'options/internal/generic/strings.cpp', + 'options/internal/generic/ubsan.cpp', + 'options/internal/generic/threads.cpp', + 'options/internal/gcc/stack_protector.cpp', + 'options/internal/gcc/guard-abi.cpp', + 'options/internal/gcc/initfini.cpp', + 'options/internal/gcc-extra/cxxabi.cpp', + 'options/internal' / host_machine.cpu_family() / 'setjmp.S', + 'options/internal' / host_machine.cpu_family() / 'fenv.S', +] + +internal_dso_sources = [ + 'options/internal' / host_machine.cpu_family() / 'mlibc_crtbegin.S', + 'options/internal' / host_machine.cpu_family() / 'mlibc_crtend.S', +] + +if not no_headers + install_headers( + 'options/internal/include/stdint.h' + ) + install_headers( + 'options/internal/include/bits/wchar_t.h', + 'options/internal/include/bits/wchar.h', + 'options/internal/include/bits/wint_t.h', + 'options/internal/include/bits/size_t.h', + 'options/internal/include/bits/types.h', + 'options/internal/include/bits/ensure.h', + 'options/internal/include/bits/machine.h', + 'options/internal/include/bits/mbstate.h', + 'options/internal/include/bits/nl_item.h', + 'options/internal/include/bits/null.h', + 'options/internal/include/bits/off_t.h', + 'options/internal/include/bits/ssize_t.h', + 'options/internal/include/bits/sigset_t.h', + 'options/internal/include/bits/inline-definition.h', + 'options/internal/include/bits/ether_addr.h', + 'options/internal/include/bits/cpu_set.h', + 'options/internal/include/bits/threads.h', + 'options/internal/include/bits/winsize.h', + subdir: 'bits' + ) +endif + +rtdl_sources += [ + 'options/internal/gcc/stack_protector.cpp', + 'options/internal/gcc/guard-abi.cpp', + 'options/internal/generic/allocator.cpp', + 'options/internal/generic/debug.cpp', + 'options/internal/generic/ensure.cpp', + 'options/internal/generic/essential.cpp', + 'options/internal/generic/inline-emitter.cpp', + 'options/internal/generic/frigg.cpp', + 'options/internal/generic/ubsan.cpp', + 'options/rtdl/generic/main.cpp', + 'options/rtdl/generic/linker.cpp', + 'options/rtdl' / host_machine.cpu_family() / 'runtime.S' +] + +rtdl_dso_sources += ['options/rtdl' / host_machine.cpu_family() / 'entry.S'] + +subdir('options/elf') +subdir('options/ansi') +subdir('options/posix') +subdir('options/lsb') +subdir('options/glibc') +subdir('options/linux') +subdir('options/iconv') +subdir('options/intl') +subdir('options/crypt') +subdir('options/bsd') + +rtlib_deps = [] + +if not headers_only + if not disable_libgcc_dependency + libgcc = meson.get_compiler('c').find_library('gcc', required: false) + + compiler_rt_name = 'libclang_rt.builtins-' + host_machine.cpu_family() + compiler_rt = meson.get_compiler('c').find_library(compiler_rt_name, required: false) + + if not compiler_rt.found() + compiler_rt_name = 'libclang_rt.builtins' + compiler_rt = meson.get_compiler('c').find_library(compiler_rt_name, required: false) + endif + + if libgcc.found() + rtlib_deps += libgcc + elif compiler_rt.found() + rtlib_deps += compiler_rt + else + error('neither libgcc nor ' + compiler_rt_name + ' was found') + endif + endif + + ld_cpp_args = [ + '-fvisibility=hidden', + '-fvisibility-inlines-hidden', + '-fno-stack-protector', + '-DMLIBC_BUILDING_RTDL' + ] + + libc_all_sources = [ + libc_sources, + internal_sources, + ansi_sources, + lsb_sources, + ] + + # Our library have different behaviour when built as static and shared libraries. + # Hence we need to rebuild the object files with a different define for each mode. + if library_type in ['static', 'both'] + static_cpp_args = [ + '-DMLIBC_STATIC_BUILD', + '-DFRIGG_HAVE_LIBC', + ] + ld_static_lib = static_library('ld', rtdl_sources, + name_prefix: '', + cpp_args: ld_cpp_args + static_cpp_args, + include_directories: rtdl_include_dirs, + dependencies: rtdl_deps + rtlib_deps, + install: false + ) + libc_static = static_library('c', libc_all_sources, + cpp_args: static_cpp_args + ['-fno-stack-protector'], + include_directories: libc_include_dirs, + dependencies: libc_deps + rtlib_deps, + link_with: [ld_static_lib], + link_whole: [libc_sublibs, ld_static_lib], + install: true + ) + endif + if library_type in ['shared', 'both'] + ld_shared_lib = shared_library('ld', rtdl_sources + rtdl_dso_sources, + name_prefix: '', + cpp_args: ld_cpp_args, + include_directories: rtdl_include_dirs, + dependencies: rtdl_deps + rtlib_deps, + install: true + ) + libc_shared = shared_library('c', libc_all_sources + internal_dso_sources, + include_directories: libc_include_dirs, + dependencies: libc_deps + rtlib_deps, + link_with: [ld_shared_lib], + link_whole: libc_sublibs, + install: true + ) + endif + + library('pthread', 'dummy-libs/libpthread/src/dummy.cpp', install: true) + library('rt', 'dummy-libs/librt/src/dummy.cpp', install: true) + library('util', 'dummy-libs/libutil/src/dummy.cpp', install: true) + library('m', 'dummy-libs/libm/src/dummy.cpp', install: true) + if not disable_crypt_option + library('crypt', 'dummy-libs/libcrypt/src/dummy.cpp', install: true) + endif + library('resolv', 'dummy-libs/libresolv/src/dummy.cpp', install: true) + library('dl', 'dummy-libs/libdl/src/dummy.cpp', install: true) + library('ssp', 'dummy-libs/libssp/src/dummy.cpp', install: true) + library('ssp_nonshared', 'dummy-libs/libssp_nonshared/src/dummy.cpp', install: true) +endif + +summary_info = {} +summary_info += {'Build tests': build_tests} +summary_info += {'Build host-libc tests': build_tests_host_libc} +summary(summary_info, bool_yn: true, section: 'tests') + +summary_info = {} +summary_info += {'headers-only': headers_only} +summary_info += {'ANSI option': not disable_ansi_option} +summary_info += {'crypt option': not disable_crypt_option} +summary_info += {'POSIX option': not disable_posix_option} +summary_info += {'Linux option': not disable_linux_option} +summary_info += {'iconv option': not disable_iconv_option} +summary_info += {'intl option': not disable_intl_option} +summary_info += {'glibc option': not disable_glibc_option} +summary_info += {'BSD option': not disable_bsd_option} +summary_info += {'debug allocator': get_option('debug_allocator')} +summary_info += {'libgcc dependency': not disable_libgcc_dependency} +summary(summary_info, bool_yn: true, section: 'mlibc options') + +if build_tests + subdir('tests/') +endif + +hdoc = find_program('hdoc', required: false) + +conf_data = configuration_data() +conf_data.set('source_root', meson.source_root()) +conf_data.set('build_root', meson.build_root()) +configure_file(input: 'scripts/hdoc.toml.in', + output: '.hdoc.toml', configuration: conf_data) + +if hdoc.found() + run_target('hdoc', command : [hdoc.full_path(), '--verbose']) +endif |