eBPF项目开发环境meson化之旅

project('libbpf', 'c', version: 'v1.5.0')libbpf_extra_cflags = ['-D__user=','-D__force=','-D__poll_t=unsigned',]output_dir = 'output'libbpf_sources = files('src/bpf.c','src/bpf_prog_linfo.c','src/btf.c','src/btf_dump.c','src/btf_iter.c','src/btf_relocate.c','src/elf.c','src/features.c','src/gen_loader.c','src/hashmap.c','src/libbpf.c','src/libbpf_errno.c','src/libbpf_probes.c','src/linker.c','src/netlink.c','src/nlattr.c','src/relo_core.c','src/ringbuf.c','src/str_error.c','src/strset.c','src/usdt.c','src/zip.c')libbpf_static = static_library('bpf_static',sources: libbpf_sources,c_args: libbpf_extra_cflags,include_directories: include_directories('include', 'include/uapi', 'src'),install: true,)libbpf_dep = declare_dependency(link_with: [libbpf_static],include_directories: include_directories('.'),)dep_libelf = dependency('libelf', fallback: ['libelf', 'libelf_dep'])dep_zlib = dependency('zlib', fallback: ['zlib', 'zlib_dep'])libbpf = library('bpf',sources: libbpf_sources,c_args: libbpf_extra_cflags,include_directories: include_directories('include', 'include/uapi', 'src'),dependencies: [dep_libelf, dep_zlib],install: true,)pkg = import('pkgconfig')pkg.generate(name: meson.project_name(),description: 'eBPF library',version: meson.project_version(),url: 'https://github.com/libbpf/libbpf',libraries: libbpf,libraries_private: libbpf_static,subdirs: ['libbpf'],)meson.override_dependency('libbpf', libbpf_dep)

# Copyright (c) 2024-2025 fei_cong(https://github.com/feicong/ebpf-course)project('argp', 'c', version: '1.0', license: 'GPL-3.0-or-later')# Gnulib requires somespecific compiler arguments, generally to suppress warnings# andadd GNU extensions if needed.argp_extra_cflags = ['-Wall','-Wextra','-Wno-unused-parameter','-D_GL_CONFIG_H_INCLUDED','-DHAVE_CONFIG_H','-D_GNU_SOURCE','-include', 'config.h',  # Ensure config.h is included firstas required]# Include the Gnulib header directorygnulib_inc = include_directories('src')# Source files from Gnulib's argp implementationargp_sources = files(  'src/argp-ba.c',  'src/argp-eexst.c',  'src/argp-fmtstream.c',  'src/argp-fs-xinl.c',  'src/argp-help.c',  'src/argp-parse.c',  'src/argp-pv.c',  'src/argp-xinl.c',  'src/getopt.c',  'src/getopt1.c',  'src/argp-pvh.c')# Configuration checks similar to CMake checkscc = meson.get_compiler('c')# Check for headershave_mempcpy_h = cc.has_header('mempcpy.h')have_strcase_h = cc.has_header('strcase.h')have_strchrnul_h = cc.has_header('strchrnul.h')have_strndup_h = cc.has_header('strndup.h')have_sysexits_h = cc.has_header('sysexits.h')have_unistd_h = cc.has_header('unistd.h')# Check for symbols and functionshave_asprintf = cc.has_function('asprintf')have_mempcpy = cc.has_function('mempcpy')have_random = cc.has_function('random')have_sleep = cc.has_function('sleep')have_strerror_r = cc.has_function('strerror_r')have_putc_unlocked = cc.has_function('putc_unlocked')have_fputs_unlocked = cc.has_function('fputs_unlocked')have_fwrite_unlocked = cc.has_function('fwrite_unlocked')have_strcasecmp = cc.has_function('strcasecmp')have_strchrnul = cc.has_function('strchrnul')have_strndup = cc.has_function('strndup')have_program_invocation_short_name = cc.has_function('program_invocation_short_name')have_program_invocation_name = cc.has_function('program_invocation_name')have_ssize_t = cc.has_type('ssize_t', dependencies : cc.find_library('c', required : false))# Generate config.h using the resultsconfig_h = configuration_data()config_h.set('HAVE_CONFIG_H', 1)config_h.set('HAVE_MEMPCPY_H', have_mempcpy_h)config_h.set('HAVE_STRCASE_H', have_strcase_h)config_h.set('HAVE_STRCHRNUL_H', have_strchrnul_h)config_h.set('HAVE_STRNDUP_H', have_strndup_h)config_h.set('HAVE_SYSEXITS_H', have_sysexits_h)config_h.set('HAVE_UNISTD_H', have_unistd_h)config_h.set('HAVE_ASPRINTF', have_asprintf)config_h.set('HAVE_MEMPCPY', have_mempcpy)config_h.set('HAVE_RANDOM', have_random)config_h.set('HAVE_SLEEP', have_sleep)config_h.set('HAVE_STRERROR_R', have_strerror_r)config_h.set('HAVE_DECL_PUTC_UNLOCKED', have_putc_unlocked)config_h.set('HAVE_DECL_FPUTS_UNLOCKED', have_fputs_unlocked)config_h.set('HAVE_DECL_FWRITE_UNLOCKED', have_fwrite_unlocked)config_h.set('HAVE_STRCASECMP', have_strcasecmp)config_h.set('HAVE_STRCHRNUL', have_strchrnul)config_h.set('HAVE_STRNDUP', have_strndup)config_h.set('HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME', have_program_invocation_short_name)config_h.set('HAVE_DECL_PROGRAM_INVOCATION_NAME', have_program_invocation_name)config_h.set('HAVE_SSIZE_T', have_ssize_t)# Write out config.hconfigure_file(  input: 'config.h.in.meson',  output: 'config.h',  configuration: config_h)argp_lib = static_library(  'argp',  sources: argp_sources,  c_args: argp_extra_cflags,  include_directories: gnulib_inc,  install: true,)argp_dep = declare_dependency(  link_with: argp_lib,  include_directories: gnulib_inc,)pkg = import('pkgconfig')pkg.generate(  libraries: argp_lib,  name: 'argp',  description: 'Gnulib argp library',  version: '1.0',  url: 'https://www.gnu.org/software/gnulib/',  subdirs: ['gnulib'],)meson.override_dependency('argp', argp_dep)