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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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5b7ba82a75
In order to use kernel maps to read object code, those maps must be adjusted to map to the dso file offset. Because lazy-initialization is used, that is not done until symbols are loaded. However the maps are first used by thread__find_addr_map() before symbols are loaded. So this patch changes thread__find_addr() to "load" kernel maps before using them. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1375875537-4509-3-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
61 lines
1.5 KiB
C
61 lines
1.5 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 <sys/types.h>
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#include "symbol.h"
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struct thread {
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union {
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struct rb_node rb_node;
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struct list_head node;
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};
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struct map_groups mg;
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pid_t tid;
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pid_t ppid;
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char shortname[3];
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bool comm_set;
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char *comm;
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int comm_len;
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void *priv;
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};
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struct machine;
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struct thread *thread__new(pid_t tid);
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void thread__delete(struct thread *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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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 thread__fprintf(struct thread *thread, FILE *fp);
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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_map(struct thread *thread, struct machine *machine,
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u8 cpumode, enum map_type type, u64 addr,
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struct addr_location *al, symbol_filter_t filter);
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void thread__find_addr_location(struct thread *thread, struct machine *machine,
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u8 cpumode, 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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static inline void *thread__priv(struct thread *thread)
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{
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return thread->priv;
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}
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static inline void thread__set_priv(struct thread *thread, void *p)
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{
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thread->priv = p;
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}
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#endif /* __PERF_THREAD_H */
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