diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/iters_testmod_seq.c')
-rw-r--r-- | tools/testing/selftests/bpf/progs/iters_testmod_seq.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/iters_testmod_seq.c b/tools/testing/selftests/bpf/progs/iters_testmod_seq.c new file mode 100644 index 000000000000..3873fb6c292a --- /dev/null +++ b/tools/testing/selftests/bpf/progs/iters_testmod_seq.c @@ -0,0 +1,79 @@ +// 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"; |