meson: add loongarch64's definition to cpu_arch_defines

The default definition to add is `-D__loongarch64__`, which is not searched in [bpf_tracing.h](https://github.com/libbpf/libbpf/blob/09b9e83102eb8ab9e540d36b4559c55f3bcdb95d/src/bpf_tracing.h#L68)

This may avoid `error: Must specify a BPF target arch via __TARGET_ARCH_xxx` in loongarch64

Signed-off-by: Zhou Qiankang <wszqkzqk@qq.com>

diff --git a/meson.build b/meson.build
index 922e5d5a9b73763e6f0c13ea58652a74580ec97d..d8003bce10a919d6045e23051e3a80505166521a 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -1789,15 +1789,16 @@ 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__', '-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'],
+                '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', '-D__TARGET_ARCH_arm'],
+                'arm'         : ['-D__arm__', '-D__ARM_PCS_VFP', '-D__TARGET_ARCH_arm'],
+                'loongarch64' : ['-D__loongarch__', '-D__loongarch_grlen=64', '-D__TARGET_ARCH_loongarch']
         }
 
         bpf_arch_flags = cpu_arch_defines.get(host_machine.cpu_family(),