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// SPDX-License-Identifier: GPL-2.0
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include "bpf_misc.h"
#ifdef CAN_USE_GOTOL
SEC("socket")
__description("gotol, small_imm")
__success __success_unpriv __retval(1)
__naked void gotol_small_imm(void)
{
asm volatile (" \
call %[bpf_ktime_get_ns]; \
if r0 == 0 goto l0_%=; \
gotol l1_%=; \
l2_%=: \
gotol l3_%=; \
l1_%=: \
r0 = 1; \
gotol l2_%=; \
l0_%=: \
r0 = 2; \
l3_%=: \
exit; \
" :
: __imm(bpf_ktime_get_ns)
: __clobber_all);
}
SEC("socket")
__description("gotol, large_imm")
__success __failure_unpriv __retval(40000)
__naked void gotol_large_imm(void)
{
asm volatile (" \
gotol 1f; \
0: \
r0 = 0; \
.rept 40000; \
r0 += 1; \
.endr; \
exit; \
1: gotol 0b; \
" :
:
: __clobber_all);
}
#else
SEC("socket")
__description("cpuv4 is not supported by compiler or jit, use a dummy test")
__success
int dummy_test(void)
{
return 0;
}
#endif
char _license[] SEC("license") = "GPL";
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