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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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9215545e99
Bypasses the tracing_data perf header code and replaces it with a synthesized event and processing function that accomplishes the same thing, used when reading/writing perf data to/from a pipe. The tracing data is pretty large, and this patch doesn't attempt to break it down into component events. The tracing_data event itself doesn't actually contain the tracing data, rather it arranges for the event processing code to skip over it after it's read, using the skip return value added to the event processing loop in a previous patch. Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org Cc: k-keiichi@bx.jp.nec.com Cc: acme@ghostprotocols.net LKML-Reference: <1270184365-8281-8-git-send-email-tzanussi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
117 lines
3.0 KiB
C
117 lines
3.0 KiB
C
#ifndef __PERF_SESSION_H
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#define __PERF_SESSION_H
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#include "event.h"
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#include "header.h"
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#include "symbol.h"
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#include "thread.h"
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#include <linux/rbtree.h>
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#include "../../../include/linux/perf_event.h"
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struct ip_callchain;
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struct thread;
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struct perf_session {
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struct perf_header header;
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unsigned long size;
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unsigned long mmap_window;
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struct map_groups kmaps;
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struct rb_root threads;
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struct thread *last_match;
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struct map *vmlinux_maps[MAP__NR_TYPES];
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struct events_stats events_stats;
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struct rb_root stats_by_id;
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unsigned long event_total[PERF_RECORD_MAX];
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unsigned long unknown_events;
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struct rb_root hists;
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u64 sample_type;
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struct ref_reloc_sym ref_reloc_sym;
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int fd;
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bool fd_pipe;
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int cwdlen;
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char *cwd;
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char filename[0];
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};
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typedef int (*event_op)(event_t *self, struct perf_session *session);
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struct perf_event_ops {
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event_op sample,
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mmap,
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comm,
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fork,
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exit,
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lost,
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read,
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throttle,
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unthrottle,
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attr,
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event_type,
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tracing_data;
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};
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struct perf_session *perf_session__new(const char *filename, int mode, bool force);
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void perf_session__delete(struct perf_session *self);
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void perf_event_header__bswap(struct perf_event_header *self);
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int __perf_session__process_events(struct perf_session *self,
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u64 data_offset, u64 data_size, u64 size,
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struct perf_event_ops *ops);
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int perf_session__process_events(struct perf_session *self,
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struct perf_event_ops *event_ops);
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struct map_symbol *perf_session__resolve_callchain(struct perf_session *self,
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struct thread *thread,
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struct ip_callchain *chain,
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struct symbol **parent);
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bool perf_session__has_traces(struct perf_session *self, const char *msg);
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int perf_header__read_build_ids(struct perf_header *self, int input,
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u64 offset, u64 file_size);
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int perf_session__set_kallsyms_ref_reloc_sym(struct perf_session *self,
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const char *symbol_name,
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u64 addr);
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void mem_bswap_64(void *src, int byte_size);
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static inline int __perf_session__create_kernel_maps(struct perf_session *self,
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struct dso *kernel)
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{
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return __map_groups__create_kernel_maps(&self->kmaps,
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self->vmlinux_maps, kernel);
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}
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static inline int perf_session__create_kernel_maps(struct perf_session *self)
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{
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return map_groups__create_kernel_maps(&self->kmaps, self->vmlinux_maps);
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}
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static inline struct map *
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perf_session__new_module_map(struct perf_session *self,
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u64 start, const char *filename)
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{
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return map_groups__new_module(&self->kmaps, start, filename);
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}
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int do_read(int fd, void *buf, size_t size);
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void perf_session__update_sample_type(struct perf_session *self);
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#ifdef NO_NEWT_SUPPORT
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static inline int perf_session__browse_hists(struct rb_root *hists __used,
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u64 nr_hists __used,
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u64 session_total __used,
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const char *helpline __used,
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const char *input_name __used)
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{
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return 0;
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}
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#else
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int perf_session__browse_hists(struct rb_root *hists, u64 nr_hists,
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u64 session_total, const char *helpline,
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const char *input_name);
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#endif
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#endif /* __PERF_SESSION_H */
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