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meson.build
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meson.build
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project('mlibc')
fs = import('fs')
rtdl_include_dirs = [
include_directories('options/internal/include'),
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/glibc/include'),
include_directories('options/internal' / host_machine.cpu_family() + '-include')
]
rtdl_sources = [ ]
libc_sources = [ ]
libc_sublibs = [ ]
libc_deps = [ ]
rtdl_deps = [ ]
headers_only = get_option('headers_only')
no_headers = get_option('mlibc_no_headers')
static = get_option('static')
build_tests = get_option('build_tests')
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')
internal_conf = configuration_data()
if not headers_only
cxxshim_dep = subproject('cxxshim').get_variable('cxxshim_dep')
libc_deps += cxxshim_dep
rtdl_deps += cxxshim_dep
frigg_dep = subproject('frigg',
default_options: ['frigg_no_install=true']).get_variable('frigg_dep')
libc_deps += frigg_dep
rtdl_deps += frigg_dep
add_languages('c', 'cpp')
c_compiler = meson.get_compiler('c')
add_project_arguments('-nostdinc', '-fno-builtin', language: ['c', 'cpp'])
add_project_arguments('-std=c++17', language: 'cpp')
add_project_arguments('-fno-rtti', '-fno-exceptions', language: 'cpp')
add_project_link_arguments('-nostdlib', language: ['c', 'cpp'])
if c_compiler.get_id() == 'gcc'
gccdir = run_command('/bin/sh', '-c',
' '.join(c_compiler.cmd_array())
+ ' -print-search-dirs | sed -n -e "s/install: \(.*\)/\\1/p"',
env: ['LANG=C'],
check: true).stdout().strip()
rtdl_include_dirs += include_directories(gccdir / 'include')
libc_include_dirs += include_directories(gccdir / 'include')
# Ubuntu seems to patch out include-fixed/ (the files are in include/ instead).
if fs.exists(gccdir / 'include-fixed')
rtdl_include_dirs += include_directories(gccdir / 'include-fixed')
libc_include_dirs += include_directories(gccdir / 'include-fixed')
endif
elif c_compiler.get_id() == 'clang'
clangdir = run_command('/bin/sh', '-c',
' '.join(c_compiler.cmd_array())
+ ' -print-search-dirs | sed -ne "s/libraries: =\(.*\):.*/\\1/p"',
env: ['LANG=C'],
check: true).stdout().strip()
rtdl_include_dirs += include_directories(clangdir / 'include')
libc_include_dirs += include_directories(clangdir / 'include')
endif
endif
internal_conf.set_quoted('MLIBC_SYSTEM_NAME', host_machine.system())
internal_conf.set('MLIBC_MAP_DSO_SEGMENTS', false)
internal_conf.set('MLIBC_MAP_FILE_WINDOWS', false)
internal_conf.set('MLIBC_STATIC_BUILD', static)
#----------------------------------------------------------------------------------------
# Configuration based on sysdeps.
#----------------------------------------------------------------------------------------
# Process sysdeps first, as sysdeps might want to disable unsupported options.
if host_machine.system() == 'linux'
disable_linux_option = true
rtdl_include_dirs += include_directories('sysdeps/linux/include')
libc_include_dirs += include_directories('sysdeps/linux/include')
subdir('sysdeps/linux')
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.set('MLIBC_MAP_DSO_SEGMENTS', true)
internal_conf.set('MLIBC_MAP_FILE_WINDOWS', true)
subdir('sysdeps/managarm')
elif host_machine.system() == 'qword'
disable_linux_option = true
rtdl_include_dirs += include_directories('sysdeps/qword/include')
libc_include_dirs += include_directories('sysdeps/qword/include')
subdir('sysdeps/qword')
elif host_machine.system() == 'sigma'
#disable_linux_option = true
rtdl_include_dirs += include_directories('sysdeps/sigma/include')
libc_include_dirs += include_directories('sysdeps/sigma/include')
libsigma = dependency('sigma')
libc_deps += libsigma
rtdl_deps += libsigma
subdir('sysdeps/sigma')
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.
#----------------------------------------------------------------------------------------
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
rtdl_include_dirs += include_directories('options/elf/include')
rtdl_include_dirs += include_directories('options/linux/include')
libc_include_dirs += include_directories('options/elf/include')
libc_include_dirs += include_directories('options/linux/include')
#----------------------------------------------------------------------------------------
configure_file(input: 'internal-config.h.in',
output: 'internal-config.h',
configuration: internal_conf)
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/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() / 'thread.cpp',
]
if host_machine.cpu_family() == 'aarch64'
internal_sources += 'options/internal' / host_machine.cpu_family() / 'setjmp.cpp'
endif
if not static
internal_sources += [
'options/internal/gcc-extra/mlibc_crtbegin.S',
'options/internal' / host_machine.cpu_family() / 'mlibc_crtend.S',
]
endif
if not no_headers
install_headers(
'options/internal/include/stdint.h'
)
install_headers(
'options/internal/include/bits/wchar_t.h',
'options/internal/include/bits/wint_t.h',
'options/internal/include/bits/feature.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/null.h',
'options/internal/include/bits/off_t.h',
'options/internal/include/bits/ssize_t.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/frigg.cpp',
'options/rtdl/generic/main.cpp',
'options/rtdl/generic/linker.cpp',
'options/rtdl' / host_machine.cpu_family() / 'runtime.S'
]
if not static
rtdl_sources += 'options/rtdl' / host_machine.cpu_family() / 'entry.S'
endif
subdir('options/elf')
subdir('options/ansi')
subdir('options/posix')
subdir('options/lsb')
subdir('options/glibc')
subdir('options/linux')
subdir('options/iconv')
if not headers_only
if not static
ldso_lib = shared_library('ld', rtdl_sources,
name_prefix: '',
cpp_args:['-fvisibility=hidden', '-DMLIBC_BUILDING_RTDL', '-DFRIGG_HAVE_LIBC',
'-fno-stack-protector'],
include_directories: rtdl_include_dirs,
dependencies: rtdl_deps,
install: true)
extra_link_args = []
if host_machine.cpu_family() == 'aarch64'
# Link with libgcc to get math symbols ...
libc_deps += meson.get_compiler('c').find_library('gcc')
# ... but don't export them ourselves
extra_link_args += '-Wl,--exclude-libs=gcc'
endif
libc = shared_library('c',
[
libc_sources,
internal_sources,
ansi_sources,
lsb_sources,
],
cpp_args: ['-DFRIGG_HAVE_LIBC'],
include_directories: libc_include_dirs,
dependencies: libc_deps,
link_with: [ldso_lib],
link_whole: libc_sublibs,
link_args: extra_link_args,
install: true,
pic: true)
shared_library('dl', 'libdl/src/dummy.cpp', install: true)
shared_library('pthread', 'libpthread/src/dummy.cpp', install: true)
shared_library('rt', 'librt/src/dummy.cpp', install: true)
shared_library('util', 'libutil/src/dummy.cpp', install: true)
shared_library('m', 'libm/src/dummy.cpp', install: true)
shared_library('crypt', 'libcrypt/src/dummy.cpp', install: true)
shared_library('resolv', 'libresolv/src/dummy.cpp', install: true)
else
ldso_lib = static_library('ld', rtdl_sources,
name_prefix: '',
cpp_args: ['-fvisibility=hidden', '-DMLIBC_BUILDING_RTDL', '-DFRIGG_HAVE_LIBC',
'-fno-stack-protector'],
include_directories: rtdl_include_dirs,
dependencies: rtdl_deps,
install: false)
libc = static_library('c',
[
libc_sources,
internal_sources,
ansi_sources,
lsb_sources,
],
cpp_args: ['-DFRIGG_HAVE_LIBC', '-fno-stack-protector'],
c_args: ['-fno-stack-protector'],
include_directories: libc_include_dirs,
dependencies: libc_deps,
link_with: [ldso_lib],
link_whole: [libc_sublibs, ldso_lib],
install: true)
static_library('pthread', 'libpthread/src/dummy.cpp', install: true)
static_library('rt', 'librt/src/dummy.cpp', install: true)
static_library('util', 'libutil/src/dummy.cpp', install: true)
static_library('m', 'libm/src/dummy.cpp', install: true)
static_library('crypt', 'libcrypt/src/dummy.cpp', install: true)
static_library('resolv', 'libresolv/src/dummy.cpp', install: true)
endif
endif
if build_tests
subdir('tests/')
endif