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meson: Define __TARGET_ARCH macros required by bpf

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These are required by the bpf_tracing.h header in libbpf, see
https://github.com/libbpf/libbpf/blob/master/src/bpf_tracing.h.

bpf_tracing.h does have a few fallbacks in case __TARGET_ARCH_XXX
is not defined but recommends using the __TARGET_ARCH macros instead
so let's do that.
This commit is contained in:
Daan De Meyer 2024-07-02 17:50:57 +02:00 committed by Luca Boccassi
parent e6b2508275
commit 48d6dad100
1 changed files with 7 additions and 7 deletions
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meson.build
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@ -1762,15 +1762,15 @@ if conf.get('BPF_FRAMEWORK') == 1
# 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__'],
's390x' : ['-D__s390__', '-D__s390x__'],
'ppc' : ['-D__powerpc__', '-D__TARGET_ARCH_powerpc'],
'ppc64' : ['-D__powerpc64__', '-D__TARGET_ARCH_powerpc', '-D_CALL_ELF=2'],
'riscv32' : ['-D__riscv', '-D__riscv_xlen=32', '-D__TARGET_ARCH_riscv'],
'riscv64' : ['-D__riscv', '-D__riscv_xlen=64', '-D__TARGET_ARCH_riscv'],
'x86' : ['-D__i386__', '-D__TARGET_ARCH_x86'],
's390x' : ['-D__s390__', '-D__s390x__', '-D__TARGET_ARCH_s390'],
# For arm, assume hardware fp is available.
'arm' : ['-D__arm__', '-D__ARM_PCS_VFP'],
'arm' : ['-D__arm__', '-D__ARM_PCS_VFP', '-D__TARGET_ARCH_arm'],
}
bpf_arch_flags = cpu_arch_defines.get(host_machine.cpu_family(),