diff options
| -rw-r--r-- | src/core/bpf/meson.build | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/src/core/bpf/meson.build b/src/core/bpf/meson.build index cd0cd3230b..c2465a845f 100644 --- a/src/core/bpf/meson.build +++ b/src/core/bpf/meson.build @@ -13,7 +13,25 @@ clang_flags = [ '-c', ] -clang_arch_flag = '-D__@0@__'.format(host_machine.cpu_family()) +# Generate defines that are appropriate to tell the compiler what architecture +# we're compiling for. By default we just map meson's cpu_family to __<cpu_family>__. +# This dictionary contains the exceptions where this doesn't work. +# +# C.f. https://mesonbuild.com/Reference-tables.html#cpu-families +# and src/basic/missing_syscall_def.h. +cpu_arch_defines = { + 'ppc' : ['-D__powerpc__'], + 'ppc64' : ['-D__powerpc64__', '-D_CALL_ELF=2'], + 'riscv32' : ['-D__riscv', '-D__riscv_xlen=32'], + 'riscv64' : ['-D__riscv', '-D__riscv_xlen=64'], + 'x86' : ['-D__i386__'], + + # For arm, assume hardware fp is available. + 'arm' : ['-D__arm__', '-D__ARM_PCS_VFP'], +} + +clang_arch_flags = cpu_arch_defines.get(host_machine.cpu_family(), + ['-D__@0@__'.format(host_machine.cpu_family())]) if meson.version().version_compare('>= 0.58') libbpf_include_dir = libbpf.get_variable('includedir') @@ -24,7 +42,7 @@ endif bpf_o_unstripped_cmd = [ clang, clang_flags, - clang_arch_flag, + clang_arch_flags, '-I.' ] |