1// SPDX-License-Identifier: GPL-2.0 2 3#include <linux/bpf.h> 4#include <bpf/bpf_helpers.h> 5#include "bpf_misc.h" 6 7#if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \ 8 (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) || \ 9 defined(__TARGET_ARCH_arm) || defined(__TARGET_ARCH_s390) || \ 10 defined(__TARGET_ARCH_loongarch)) && \ 11 __clang_major__ >= 18 12 13SEC("socket") 14__description("gotol, small_imm") 15__success __success_unpriv __retval(1) 16__naked void gotol_small_imm(void) 17{ 18 asm volatile (" \ 19 call %[bpf_ktime_get_ns]; \ 20 if r0 == 0 goto l0_%=; \ 21 gotol l1_%=; \ 22l2_%=: \ 23 gotol l3_%=; \ 24l1_%=: \ 25 r0 = 1; \ 26 gotol l2_%=; \ 27l0_%=: \ 28 r0 = 2; \ 29l3_%=: \ 30 exit; \ 31" : 32 : __imm(bpf_ktime_get_ns) 33 : __clobber_all); 34} 35 36SEC("socket") 37__description("gotol, large_imm") 38__success __failure_unpriv __retval(40000) 39__naked void gotol_large_imm(void) 40{ 41 asm volatile (" \ 42 gotol 1f; \ 430: \ 44 r0 = 0; \ 45 .rept 40000; \ 46 r0 += 1; \ 47 .endr; \ 48 exit; \ 491: gotol 0b; \ 50" : 51 : 52 : __clobber_all); 53} 54 55#else 56 57SEC("socket") 58__description("cpuv4 is not supported by compiler or jit, use a dummy test") 59__success 60int dummy_test(void) 61{ 62 return 0; 63} 64 65#endif 66 67char _license[] SEC("license") = "GPL"; 68