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OpenCloudOS-Kernel
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perf symbols: Split helpers used when creating kernel dso object 

To make it clear and allow for direct usage by, for instance,
regression test suites.

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: <1264633557-17597-3-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Arnaldo Carvalho de Melo 2010-01-27 21:05:51 -02:00 committed by Ingo Molnar
parent a19afe4641
commit fd1d908c54
2 changed files with 23 additions and 7 deletions
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28
tools/perf/util/symbol.c
View File

@ -1762,24 +1762,38 @@ size_t dsos__fprintf_buildid(FILE *fp, bool with_hits)
__dsos__fprintf_buildid(&dsos__user, fp, with_hits));
}
struct dso *dso__new_kernel(const char *name)
{
struct dso *self = dso__new(name ?: "[kernel.kallsyms]");
if (self != NULL) {
self->short_name = "[kernel]";
self->kernel = 1;
}
return self;
}
void dso__read_running_kernel_build_id(struct dso *self)
{
if (sysfs__read_build_id("/sys/kernel/notes", self->build_id,
sizeof(self->build_id)) == 0)
self->has_build_id = true;
}
static struct dso *dsos__create_kernel(const char *vmlinux)
{
struct dso *kernel = dso__new(vmlinux ?: "[kernel.kallsyms]");
struct dso *kernel = dso__new_kernel(vmlinux);
if (kernel == NULL)
return NULL;
kernel->short_name = "[kernel]";
kernel->kernel = 1;
vdso = dso__new("[vdso]");
if (vdso == NULL)
goto out_delete_kernel_dso;
dso__set_loaded(vdso, MAP__FUNCTION);
if (sysfs__read_build_id("/sys/kernel/notes", kernel->build_id,
sizeof(kernel->build_id)) == 0)
kernel->has_build_id = true;
dso__read_running_kernel_build_id(kernel);
dsos__add(&dsos__kernel, kernel);
dsos__add(&dsos__user, vdso);

2
tools/perf/util/symbol.h
View File

@ -109,6 +109,7 @@ struct dso {
};
struct dso *dso__new(const char *name);
struct dso *dso__new_kernel(const char *name);
void dso__delete(struct dso *self);
bool dso__loaded(const struct dso *self, enum map_type type);
@ -139,6 +140,7 @@ size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp);
char dso__symtab_origin(const struct dso *self);
void dso__set_long_name(struct dso *self, char *name);
void dso__set_build_id(struct dso *self, void *build_id);
void dso__read_running_kernel_build_id(struct dso *self);
struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr);
struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type,
const char *name);