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perf callchains: Store the map together with the symbol 

We need this to know where a symbol in a callchain came from,
for various reasons, among them precise annotation from a
TUI/GUI tool.

Signed-off-by: Arnaldo Carvalho de Melo <acme@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: <1269459619-982-5-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Arnaldo Carvalho de Melo 2010-03-24 16:40:18 -03:00 committed by Ingo Molnar
parent 59fd53062f
commit b3c9ac0846
7 changed files with 36 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
tools/perf/builtin-report.c
View File

@ -81,7 +81,8 @@ static int perf_session__add_hist_entry(struct perf_session *self,
struct addr_location *al, struct addr_location *al,
struct sample_data *data) struct sample_data *data)
{ {
struct symbol **syms = NULL, *parent = NULL; struct map_symbol *syms = NULL;
struct symbol *parent = NULL;
bool hit; bool hit;
int err; int err;
struct hist_entry *he; struct hist_entry *he;

21
tools/perf/util/callchain.c
View File

@ -185,8 +185,8 @@ create_child(struct callchain_node *parent, bool inherit_children)
struct resolved_ip { struct resolved_ip {
u64 ip; u64 ip;
struct symbol *sym; struct map_symbol ms;
}; };
struct resolved_chain { struct resolved_chain {
@ -212,7 +212,7 @@ fill_node(struct callchain_node *node, struct resolved_chain *chain, int start)
return; return;
} }
call->ip = chain->ips[i].ip; call->ip = chain->ips[i].ip;
call->sym = chain->ips[i].sym; call->ms = chain->ips[i].ms;
list_add_tail(&call->list, &node->val); list_add_tail(&call->list, &node->val);
} }
node->val_nr = chain->nr - start; node->val_nr = chain->nr - start;
@ -318,10 +318,10 @@ __append_chain(struct callchain_node *root, struct resolved_chain *chain,
if (i == chain->nr) if (i == chain->nr)
break; break;
sym = chain->ips[i].sym; sym = chain->ips[i].ms.sym;
if (cnode->sym && sym) { if (cnode->ms.sym && sym) {
if (cnode->sym->start != sym->start) if (cnode->ms.sym->start != sym->start)
break; break;
} else if (cnode->ip != chain->ips[i].ip) } else if (cnode->ip != chain->ips[i].ip)
break; break;
@ -353,9 +353,8 @@ __append_chain(struct callchain_node *root, struct resolved_chain *chain,
return 0; return 0;
} }
static void static void filter_context(struct ip_callchain *old, struct resolved_chain *new,
filter_context(struct ip_callchain *old, struct resolved_chain *new, struct map_symbol *syms)
struct symbol **syms)
{ {
int i, j = 0; int i, j = 0;
@ -364,7 +363,7 @@ filter_context(struct ip_callchain *old, struct resolved_chain *new,
continue; continue;
new->ips[j].ip = old->ips[i]; new->ips[j].ip = old->ips[i];
new->ips[j].sym = syms[i]; new->ips[j].ms = syms[i];
j++; j++;
} }
@ -373,7 +372,7 @@ filter_context(struct ip_callchain *old, struct resolved_chain *new,
int append_chain(struct callchain_node *root, struct ip_callchain *chain, int append_chain(struct callchain_node *root, struct ip_callchain *chain,
struct symbol **syms) struct map_symbol *syms)
{ {
struct resolved_chain *filtered; struct resolved_chain *filtered;

4
tools/perf/util/callchain.h
View File

@ -39,7 +39,7 @@ struct callchain_param {
struct callchain_list { struct callchain_list {
u64 ip; u64 ip;
struct symbol *sym; struct map_symbol ms;
struct list_head list; struct list_head list;
}; };
@ -57,5 +57,5 @@ static inline u64 cumul_hits(struct callchain_node *node)
int register_callchain_param(struct callchain_param *param); int register_callchain_param(struct callchain_param *param);
int append_chain(struct callchain_node *root, struct ip_callchain *chain, int append_chain(struct callchain_node *root, struct ip_callchain *chain,
struct symbol **syms); struct map_symbol *syms);
#endif /* __PERF_CALLCHAIN_H */ #endif /* __PERF_CALLCHAIN_H */

14
tools/perf/util/hist.c
View File

@ -260,8 +260,8 @@ static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain,
} else } else
ret += fprintf(fp, "%s", " "); ret += fprintf(fp, "%s", " ");
} }
if (chain->sym) if (chain->ms.sym)
ret += fprintf(fp, "%s\n", chain->sym->name); ret += fprintf(fp, "%s\n", chain->ms.sym->name);
else else
ret += fprintf(fp, "%p\n", (void *)(long)chain->ip); ret += fprintf(fp, "%p\n", (void *)(long)chain->ip);
@ -280,7 +280,7 @@ static void init_rem_hits(void)
} }
strcpy(rem_sq_bracket->name, "[...]"); strcpy(rem_sq_bracket->name, "[...]");
rem_hits.sym = rem_sq_bracket; rem_hits.ms.sym = rem_sq_bracket;
} }
static size_t __callchain__fprintf_graph(FILE *fp, struct callchain_node *self, static size_t __callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
@ -382,8 +382,8 @@ static size_t callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
} else } else
ret += callchain__fprintf_left_margin(fp, left_margin); ret += callchain__fprintf_left_margin(fp, left_margin);
if (chain->sym) if (chain->ms.sym)
ret += fprintf(fp, " %s\n", chain->sym->name); ret += fprintf(fp, " %s\n", chain->ms.sym->name);
else else
ret += fprintf(fp, " %p\n", (void *)(long)chain->ip); ret += fprintf(fp, " %p\n", (void *)(long)chain->ip);
} }
@ -408,8 +408,8 @@ static size_t callchain__fprintf_flat(FILE *fp, struct callchain_node *self,
list_for_each_entry(chain, &self->val, list) { list_for_each_entry(chain, &self->val, list) {
if (chain->ip >= PERF_CONTEXT_MAX) if (chain->ip >= PERF_CONTEXT_MAX)
continue; continue;
if (chain->sym) if (chain->ms.sym)
ret += fprintf(fp, " %s\n", chain->sym->name); ret += fprintf(fp, " %s\n", chain->ms.sym->name);
else else
ret += fprintf(fp, " %p\n", ret += fprintf(fp, " %p\n",
(void *)(long)chain->ip); (void *)(long)chain->ip);

8
tools/perf/util/newt.c
View File

@ -104,8 +104,8 @@ static void newt_checkbox_tree__add(newtComponent tree, const char *str,
static char *callchain_list__sym_name(struct callchain_list *self, static char *callchain_list__sym_name(struct callchain_list *self,
char *bf, size_t bfsize) char *bf, size_t bfsize)
{ {
if (self->sym) if (self->ms.sym)
return self->sym->name; return self->ms.sym->name;
snprintf(bf, bfsize, "%#Lx", self->ip); snprintf(bf, bfsize, "%#Lx", self->ip);
return bf; return bf;
@ -157,7 +157,7 @@ static void __callchain__append_graph_browser(struct callchain_node *self,
indexes[depth + 2] = NEWT_ARG_LAST; indexes[depth + 2] = NEWT_ARG_LAST;
++chain_idx; ++chain_idx;
} }
newt_checkbox_tree__add(tree, str, chain->sym, indexes); newt_checkbox_tree__add(tree, str, chain->ms.sym, indexes);
free(alloc_str); free(alloc_str);
++printed; ++printed;
} }
@ -193,7 +193,7 @@ static void callchain__append_graph_browser(struct callchain_node *self,
continue; continue;
str = callchain_list__sym_name(chain, ipstr, sizeof(ipstr)); str = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
newt_checkbox_tree__add(tree, str, chain->sym, indexes); newt_checkbox_tree__add(tree, str, chain->ms.sym, indexes);
} }
indexes[1] = parent_idx; indexes[1] = parent_idx;

13
tools/perf/util/session.c
View File

@ -117,13 +117,13 @@ static bool symbol__match_parent_regex(struct symbol *sym)
return 0; return 0;
} }
struct symbol **perf_session__resolve_callchain(struct perf_session *self, struct map_symbol *perf_session__resolve_callchain(struct perf_session *self,
struct thread *thread, struct thread *thread,
struct ip_callchain *chain, struct ip_callchain *chain,
struct symbol **parent) struct symbol **parent)
{ {
u8 cpumode = PERF_RECORD_MISC_USER; u8 cpumode = PERF_RECORD_MISC_USER;
struct symbol **syms = NULL; struct map_symbol *syms = NULL;
unsigned int i; unsigned int i;
if (symbol_conf.use_callchain) { if (symbol_conf.use_callchain) {
@ -160,7 +160,8 @@ struct symbol **perf_session__resolve_callchain(struct perf_session *self,
*parent = al.sym; *parent = al.sym;
if (!symbol_conf.use_callchain) if (!symbol_conf.use_callchain)
break; break;
syms[i] = al.sym; syms[i].map = al.map;
syms[i].sym = al.sym;
} }
} }

8
tools/perf/util/session.h
View File

@ -57,10 +57,10 @@ int __perf_session__process_events(struct perf_session *self,
int perf_session__process_events(struct perf_session *self, int perf_session__process_events(struct perf_session *self,
struct perf_event_ops *event_ops); struct perf_event_ops *event_ops);
struct symbol **perf_session__resolve_callchain(struct perf_session *self, struct map_symbol *perf_session__resolve_callchain(struct perf_session *self,
struct thread *thread, struct thread *thread,
struct ip_callchain *chain, struct ip_callchain *chain,
struct symbol **parent); struct symbol **parent);
bool perf_session__has_traces(struct perf_session *self, const char *msg); bool perf_session__has_traces(struct perf_session *self, const char *msg);