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9958e1f0ae
Using a struct thread instance just to hold the kernel space maps (vmlinux + modules) is overkill and confuses people trying to understand the perf symbols abstractions. The kernel maps are really present in all threads, i.e. the kernel is a library, not a separate thread. So introduce the 'map_groups' abstraction and use it for the kernel maps, now in the kmaps global variable. It, in turn, will move, together with the threads list to the perf_file abstraction, so that we can support multiple perf_file instances, needed by perf diff. Brainstormed-with: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260550239-5372-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
#ifndef __PERF_THREAD_H
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#define __PERF_THREAD_H
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#include <linux/rbtree.h>
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#include <unistd.h>
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#include "symbol.h"
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struct map_groups {
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struct rb_root maps[MAP__NR_TYPES];
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struct list_head removed_maps[MAP__NR_TYPES];
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bool use_modules;
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};
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struct thread {
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struct rb_node rb_node;
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struct map_groups mg;
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pid_t pid;
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char shortname[3];
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char *comm;
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int comm_len;
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};
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void map_groups__init(struct map_groups *self);
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int thread__set_comm(struct thread *self, const char *comm);
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int thread__comm_len(struct thread *self);
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struct thread *threads__findnew(pid_t pid);
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struct thread *register_idle_thread(void);
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void thread__insert_map(struct thread *self, struct map *map);
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int thread__fork(struct thread *self, struct thread *parent);
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size_t map_groups__fprintf_maps(struct map_groups *self, FILE *fp);
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size_t threads__fprintf(FILE *fp);
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void maps__insert(struct rb_root *maps, struct map *map);
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struct map *maps__find(struct rb_root *maps, u64 addr);
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static inline void map_groups__insert(struct map_groups *self, struct map *map)
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{
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maps__insert(&self->maps[map->type], map);
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}
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static inline struct map *map_groups__find(struct map_groups *self,
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enum map_type type, u64 addr)
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{
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return maps__find(&self->maps[type], addr);
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}
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static inline struct map *thread__find_map(struct thread *self,
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enum map_type type, u64 addr)
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{
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return self ? map_groups__find(&self->mg, type, addr) : NULL;
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}
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void thread__find_addr_location(struct thread *self, u8 cpumode,
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enum map_type type, u64 addr,
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struct addr_location *al,
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symbol_filter_t filter);
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struct symbol *map_groups__find_symbol(struct map_groups *self,
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enum map_type type, u64 addr,
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symbol_filter_t filter);
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static inline struct symbol *
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map_groups__find_function(struct map_groups *self, u64 addr,
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symbol_filter_t filter)
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{
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return map_groups__find_symbol(self, MAP__FUNCTION, addr, filter);
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}
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#endif /* __PERF_THREAD_H */
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