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perf_counter tools: Consolidate dso methods to load kernel symbols 

Now one has just to use dso__load_kernel() optionally passing a vmlinux
filename.

Will make things easier for perf top that will want to pass a callback
to filter some symbols.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Arnaldo Carvalho de Melo 2009-05-28 14:55:19 -03:00 committed by Ingo Molnar
parent 0085c95414
commit a827c875f2
3 changed files with 18 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Documentation/perf_counter/builtin-report.c
View File

@ -118,18 +118,13 @@ static void dsos__fprintf(FILE *fp)
static int load_kernel(void)
{
int err = -1;
int err;
kernel_dso = dso__new("[kernel]", 0);
if (!kernel_dso)
return -1;
if (vmlinux)
err = dso__load_vmlinux(kernel_dso, vmlinux);
if (err)
err = dso__load_kallsyms(kernel_dso);
err = dso__load_kernel(kernel_dso, vmlinux);
if (err) {
dso__delete(kernel_dso);
kernel_dso = NULL;

17
Documentation/perf_counter/util/symbol.c
View File

@ -155,7 +155,7 @@ static int hex2long(char *ptr, unsigned long *long_val)
return p - ptr;
}
int dso__load_kallsyms(struct dso *self)
static int dso__load_kallsyms(struct dso *self)
{
struct rb_node *nd, *prevnd;
char *line = NULL;
@ -410,7 +410,7 @@ int dso__load(struct dso *self)
return ret;
}
int dso__load_vmlinux(struct dso *self, const char *vmlinux)
static int dso__load_vmlinux(struct dso *self, const char *vmlinux)
{
int err, fd = open(vmlinux, O_RDONLY);
@ -423,6 +423,19 @@ int dso__load_vmlinux(struct dso *self, const char *vmlinux)
return err;
}
int dso__load_kernel(struct dso *self, const char *vmlinux)
{
int err = -1;
if (vmlinux)
err = dso__load_vmlinux(self, vmlinux);
if (err)
err = dso__load_kallsyms(self);
return err;
}
void symbol__init(void)
{
elf_version(EV_CURRENT);

3
Documentation/perf_counter/util/symbol.h
View File

@ -29,8 +29,7 @@ static inline void *dso__sym_priv(struct dso *self, struct symbol *sym)
struct symbol *dso__find_symbol(struct dso *self, uint64_t ip);
int dso__load_kallsyms(struct dso *self);
int dso__load_vmlinux(struct dso *self, const char *vmlinux);
int dso__load_kernel(struct dso *self, const char *vmlinux);
int dso__load(struct dso *self);
size_t dso__fprintf(struct dso *self, FILE *fp);