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selftests/bpf: Add err.h header

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Moving error macros from profiler.inc.h to new err.h header.
It will be used in following changes.

Also adding PTR_ERR macro that will be used in following changes.

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20230331093157.1749137-2-jolsa@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Jiri Olsa 2023-03-31 11:31:55 +02:00 committed by Alexei Starovoitov
parent 67efbd57bc
commit 328bafc9a3
2 changed files with 19 additions and 2 deletions
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18
tools/testing/selftests/bpf/progs/err.h Normal file
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@ -0,0 +1,18 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ERR_H__
#define __ERR_H__
#define MAX_ERRNO 4095
#define IS_ERR_VALUE(x) (unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO
static inline int IS_ERR_OR_NULL(const void *ptr)
{
return !ptr || IS_ERR_VALUE((unsigned long)ptr);
}
static inline long PTR_ERR(const void *ptr)
{
return (long) ptr;
}
#endif /* __ERR_H__ */

3
tools/testing/selftests/bpf/progs/profiler.inc.h
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@ -6,6 +6,7 @@
#include <bpf/bpf_tracing.h>
#include "profiler.h"
#include "err.h"
#ifndef NULL
#define NULL 0
@ -16,7 +17,6 @@
#define O_DIRECTORY 00200000
#define __O_TMPFILE 020000000
#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
#define MAX_ERRNO 4095
#define S_IFMT 00170000
#define S_IFSOCK 0140000
#define S_IFLNK 0120000
@ -34,7 +34,6 @@
#define S_ISBLK(m) (((m)&S_IFMT) == S_IFBLK)
#define S_ISFIFO(m) (((m)&S_IFMT) == S_IFIFO)
#define S_ISSOCK(m) (((m)&S_IFMT) == S_IFSOCK)
#define IS_ERR_VALUE(x) (unsigned long)(void*)(x) >= (unsigned long)-MAX_ERRNO
#define KILL_DATA_ARRAY_SIZE 8