80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
|
|
|
|
#include "vmlinux.h"
|
|
#include <bpf/bpf_helpers.h>
|
|
#include "bpf_misc.h"
|
|
|
|
struct bpf_iter_testmod_seq {
|
|
u64 :64;
|
|
u64 :64;
|
|
};
|
|
|
|
extern int bpf_iter_testmod_seq_new(struct bpf_iter_testmod_seq *it, s64 value, int cnt) __ksym;
|
|
extern s64 *bpf_iter_testmod_seq_next(struct bpf_iter_testmod_seq *it) __ksym;
|
|
extern void bpf_iter_testmod_seq_destroy(struct bpf_iter_testmod_seq *it) __ksym;
|
|
|
|
const volatile __s64 exp_empty = 0 + 1;
|
|
__s64 res_empty;
|
|
|
|
SEC("raw_tp/sys_enter")
|
|
__success __log_level(2)
|
|
__msg("fp-16_w=iter_testmod_seq(ref_id=1,state=active,depth=0)")
|
|
__msg("fp-16=iter_testmod_seq(ref_id=1,state=drained,depth=0)")
|
|
__msg("call bpf_iter_testmod_seq_destroy")
|
|
int testmod_seq_empty(const void *ctx)
|
|
{
|
|
__s64 sum = 0, *i;
|
|
|
|
bpf_for_each(testmod_seq, i, 1000, 0) sum += *i;
|
|
res_empty = 1 + sum;
|
|
|
|
return 0;
|
|
}
|
|
|
|
const volatile __s64 exp_full = 1000000;
|
|
__s64 res_full;
|
|
|
|
SEC("raw_tp/sys_enter")
|
|
__success __log_level(2)
|
|
__msg("fp-16_w=iter_testmod_seq(ref_id=1,state=active,depth=0)")
|
|
__msg("fp-16=iter_testmod_seq(ref_id=1,state=drained,depth=0)")
|
|
__msg("call bpf_iter_testmod_seq_destroy")
|
|
int testmod_seq_full(const void *ctx)
|
|
{
|
|
__s64 sum = 0, *i;
|
|
|
|
bpf_for_each(testmod_seq, i, 1000, 1000) sum += *i;
|
|
res_full = sum;
|
|
|
|
return 0;
|
|
}
|
|
|
|
const volatile __s64 exp_truncated = 10 * 1000000;
|
|
__s64 res_truncated;
|
|
|
|
static volatile int zero = 0;
|
|
|
|
SEC("raw_tp/sys_enter")
|
|
__success __log_level(2)
|
|
__msg("fp-16_w=iter_testmod_seq(ref_id=1,state=active,depth=0)")
|
|
__msg("fp-16=iter_testmod_seq(ref_id=1,state=drained,depth=0)")
|
|
__msg("call bpf_iter_testmod_seq_destroy")
|
|
int testmod_seq_truncated(const void *ctx)
|
|
{
|
|
__s64 sum = 0, *i;
|
|
int cnt = zero;
|
|
|
|
bpf_for_each(testmod_seq, i, 10, 2000000) {
|
|
sum += *i;
|
|
cnt++;
|
|
if (cnt >= 1000000)
|
|
break;
|
|
}
|
|
res_truncated = sum;
|
|
|
|
return 0;
|
|
}
|
|
|
|
char _license[] SEC("license") = "GPL";
|