b36f19d572
We were still using the pathname found on the MMAP event, that could not
be the one we used when recording, so use the build-id cache for that,
only falling back to use the pathname in the MMAP event if no build-ids
are available.
With this we now also are able to do secure, seamless offline annotation.
Example:
[root@doppio linux-2.6-tip]# perf report -g none -v 2> /dev/null | head -10
8.12% Xorg /usr/lib64/libpixman-1.so.0.14.0 0x0000000000026d02 B [.] pixman_rasterize_edges
4.68% firefox /usr/lib64/xulrunner-1.9.1/libxul.so 0x00000000005dbdba B [.] 0x000000005dbdba
3.70% swapper /lib/modules/2.6.34-rc6/build/vmlinux 0xffffffff81022cea ! [k] read_hpet
2.96% init /lib/modules/2.6.34-rc6/build/vmlinux 0xffffffff81022cea ! [k] read_hpet
2.73% swapper /lib/modules/2.6.34-rc6/build/vmlinux 0xffffffff8100a738 ! [k] mwait_idle_with_hints
[root@doppio linux-2.6-tip]# perf annotate -v pixman_rasterize_edges 2>&1 | grep Executing
Executing: objdump --start-address=0x000000371ce26670 --stop-address=0x000000371ce2709f -dS /root/.debug/.build-id/bd/6ac5199137aaeb279f864717d8d061477466c1|grep -v /root/.debug/.build-id/bd/6ac5199137aaeb279f864717d8d061477466c1|expand
[root@doppio linux-2.6-tip]# perf buildid-list | grep libpixman-1.so.0.14.0
bd6ac5199137aaeb279f864717d8d061477466c1 /usr/lib64/libpixman-1.so.0.14.0
[root@doppio linux-2.6-tip]#
Reported-by: Stephane Eranian <eranian@google.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
#ifndef __PERF_CALLCHAIN_H
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#define __PERF_CALLCHAIN_H
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#include "../perf.h"
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#include <linux/list.h>
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#include <linux/rbtree.h>
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#include "event.h"
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#include "symbol.h"
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enum chain_mode {
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CHAIN_NONE,
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CHAIN_FLAT,
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CHAIN_GRAPH_ABS,
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CHAIN_GRAPH_REL
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};
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struct callchain_node {
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struct callchain_node *parent;
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struct list_head brothers;
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struct list_head children;
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struct list_head val;
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struct rb_node rb_node; /* to sort nodes in an rbtree */
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struct rb_root rb_root; /* sorted tree of children */
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unsigned int val_nr;
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u64 hit;
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u64 children_hit;
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};
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struct callchain_param;
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typedef void (*sort_chain_func_t)(struct rb_root *, struct callchain_node *,
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u64, struct callchain_param *);
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struct callchain_param {
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enum chain_mode mode;
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u32 print_limit;
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double min_percent;
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sort_chain_func_t sort;
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};
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struct callchain_list {
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u64 ip;
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struct map_symbol ms;
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struct list_head list;
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};
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static inline void callchain_init(struct callchain_node *node)
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{
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INIT_LIST_HEAD(&node->brothers);
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INIT_LIST_HEAD(&node->children);
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INIT_LIST_HEAD(&node->val);
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}
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static inline u64 cumul_hits(struct callchain_node *node)
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{
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return node->hit + node->children_hit;
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}
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int register_callchain_param(struct callchain_param *param);
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int append_chain(struct callchain_node *root, struct ip_callchain *chain,
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struct map_symbol *syms);
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bool ip_callchain__valid(struct ip_callchain *chain, event_t *event);
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#endif /* __PERF_CALLCHAIN_H */
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