#

# Project configuration, options, modules, scripts

#

project(

'graphene', 'c',

version: '1.2-rc1',

license: 'LGPLv3 ',

# DISTRO EOL meson_version

# xenial 2021.04 0.29

# xenial-backports 2021.04 0.40

# bionic 2023.04 0.45

# buster 2022 0.49

# buster-backports 2022 0.52

# focal 2025.04 0.53

#

# https://wiki.ubuntu.com/Releases

# https://wiki.debian.org/DebianReleases#Production_Releases

meson_version: '>=0.45',

default_options: [

'c_std=c11',

'werror=true',

],

)

prefix = get_option('prefix')

pkglibdir = join_paths(get_option('libdir'), meson.project_name())

pkgdatadir = join_paths(get_option('datadir'), meson.project_name())

direct = get_option('direct') == 'enabled'

sgx = get_option('sgx') == 'enabled'

skeleton = get_option('skeleton') == 'enabled'

ubsan = get_option('ubsan') == 'enabled'

cc = meson.get_compiler('c')

objcopy = find_program('objcopy')

# TODO: after deprecating 18.04/bionic, update this to import('python')

python3mod = import('python3')

python3 = python3mod.find_python()

add_project_arguments(

'-Wa,--noexecstack',

'-Wall',

'-Wextra',

'-Wmissing-prototypes',

'-Wstrict-prototypes',

'-Wwrite-strings',

cc.get_supported_arguments(

'-Wtrampolines',

'-Wnull-dereference',

),

language: 'c')

if get_option('buildtype') == 'debug' or get_option('buildtype') == 'debugoptimized'

add_project_arguments('-DDEBUG', language: 'c')

endif

subdir('Scripts')

#

# Common checks and flags

#

# Not all compilers support mstack-protector-guard, so use stack protector only if supported.

# Graphene-custom stack protector uses the canary stored in the TCB (same for both in LibOS and PAL)

# at offset 0x8.

if host_machine.cpu_family() == 'x86_64'

cflags_custom_stack_protector = [

'-fstack-protector-strong',

'-mstack-protector-guard=tls',

'-mstack-protector-guard-reg=%gs',

'-mstack-protector-guard-offset=8',

]

else

cflags_custom_stack_protector = [

'-fstack-protector-strong',

]

endif

if not cc.has_multi_arguments(cflags_custom_stack_protector)

cflags_custom_stack_protector = '-fno-stack-protector'

endif

# Don't support b_sanitize: integration with sanitizers in Graphene is tricky and we want more

# control over the exact flags.

if get_option('b_sanitize') != 'none'

error('Please don\'t use the b_sanitize option; use -Dubsan=enabled instead.')

endif

cflags_sanitizers = []

if ubsan

cflags_sanitizers = [

'-fsanitize=undefined',

'-fno-sanitize-recover=undefined',

'-DUBSAN',

]

endif

#

# The compilation

#

subdir('common')

subdir('Pal')

subdir('LibOS')

subdir('Runtime')

subdir('python')

run_target('clang-format', command: [meson_clang_format_prog])