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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/lib/traceevent/kbuffer.h | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/lib/traceevent/kbuffer.h')
-rw-r--r-- | tools/lib/traceevent/kbuffer.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/tools/lib/traceevent/kbuffer.h b/tools/lib/traceevent/kbuffer.h new file mode 100644 index 000000000..a2b522093 --- /dev/null +++ b/tools/lib/traceevent/kbuffer.h @@ -0,0 +1,68 @@ +/* SPDX-License-Identifier: LGPL-2.1 */ +/* + * Copyright (C) 2012 Red Hat Inc, Steven Rostedt <srostedt@redhat.com> + * + */ +#ifndef _KBUFFER_H +#define _KBUFFER_H + +#ifndef TS_SHIFT +#define TS_SHIFT 27 +#endif + +enum kbuffer_endian { + KBUFFER_ENDIAN_BIG, + KBUFFER_ENDIAN_LITTLE, +}; + +enum kbuffer_long_size { + KBUFFER_LSIZE_4, + KBUFFER_LSIZE_8, +}; + +enum { + KBUFFER_TYPE_PADDING = 29, + KBUFFER_TYPE_TIME_EXTEND = 30, + KBUFFER_TYPE_TIME_STAMP = 31, +}; + +struct kbuffer; + +struct kbuffer *kbuffer_alloc(enum kbuffer_long_size size, enum kbuffer_endian endian); +void kbuffer_free(struct kbuffer *kbuf); +int kbuffer_load_subbuffer(struct kbuffer *kbuf, void *subbuffer); +void *kbuffer_read_event(struct kbuffer *kbuf, unsigned long long *ts); +void *kbuffer_next_event(struct kbuffer *kbuf, unsigned long long *ts); +unsigned long long kbuffer_timestamp(struct kbuffer *kbuf); +unsigned long long kbuffer_subbuf_timestamp(struct kbuffer *kbuf, void *subbuf); +unsigned int kbuffer_ptr_delta(struct kbuffer *kbuf, void *ptr); + +void *kbuffer_translate_data(int swap, void *data, unsigned int *size); + +void *kbuffer_read_at_offset(struct kbuffer *kbuf, int offset, unsigned long long *ts); + +int kbuffer_curr_index(struct kbuffer *kbuf); + +int kbuffer_curr_offset(struct kbuffer *kbuf); +int kbuffer_curr_size(struct kbuffer *kbuf); +int kbuffer_event_size(struct kbuffer *kbuf); +int kbuffer_missed_events(struct kbuffer *kbuf); +int kbuffer_subbuffer_size(struct kbuffer *kbuf); + +void kbuffer_set_old_format(struct kbuffer *kbuf); +int kbuffer_start_of_data(struct kbuffer *kbuf); + +/* Debugging */ + +struct kbuffer_raw_info { + int type; + int length; + unsigned long long delta; + void *next; +}; + +/* Read raw data */ +struct kbuffer_raw_info *kbuffer_raw_get(struct kbuffer *kbuf, void *subbuf, + struct kbuffer_raw_info *info); + +#endif /* _K_BUFFER_H */ |