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Code Issues Releases Wiki Activity

selftests/bpf: Move is_jit_enabled() into testing_helpers

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Currently, is_jit_enabled() is only used in test_progs, move it into
testing_helpers so that it can be used in test_verifier. While at it,
remove the second argument "0" of open() as Hou Tao suggested.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Hou Tao <houtao1@huawei.com>
Acked-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/bpf/20240123090351.2207-2-yangtiezhu@loongson.cn
This commit is contained in:
Tiezhu Yang 2024-01-23 17:03:50 +08:00 committed by Andrii Nakryiko
parent 8b59302131
commit 15b4f88dcc
3 changed files with 19 additions and 18 deletions
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18
tools/testing/selftests/bpf/test_progs.c
View file

@ -547,24 +547,6 @@ int bpf_find_map(const char *test, struct bpf_object *obj, const char *name)
return bpf_map__fd(map);
}
static bool is_jit_enabled(void)
{
const char *jit_sysctl = "/proc/sys/net/core/bpf_jit_enable";
bool enabled = false;
int sysctl_fd;
sysctl_fd = open(jit_sysctl, 0, O_RDONLY);
if (sysctl_fd != -1) {
char tmpc;
if (read(sysctl_fd, &tmpc, sizeof(tmpc)) == 1)
enabled = (tmpc != '0');
close(sysctl_fd);
}
return enabled;
}
int compare_map_keys(int map1_fd, int map2_fd)
{
__u32 key, next_key;

18
tools/testing/selftests/bpf/testing_helpers.c
View file

@ -457,3 +457,21 @@ int get_xlated_program(int fd_prog, struct bpf_insn **buf, __u32 *cnt)
*buf = NULL;
return -1;
}
bool is_jit_enabled(void)
{
const char *jit_sysctl = "/proc/sys/net/core/bpf_jit_enable";
bool enabled = false;
int sysctl_fd;
sysctl_fd = open(jit_sysctl, O_RDONLY);
if (sysctl_fd != -1) {
char tmpc;
if (read(sysctl_fd, &tmpc, sizeof(tmpc)) == 1)
enabled = (tmpc != '0');
close(sysctl_fd);
}
return enabled;
}

1
tools/testing/selftests/bpf/testing_helpers.h
View file

@ -52,5 +52,6 @@ struct bpf_insn;
*/
int get_xlated_program(int fd_prog, struct bpf_insn **buf, __u32 *cnt);
int testing_prog_flags(void);
bool is_jit_enabled(void);
#endif /* __TESTING_HELPERS_H */