xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

perf tools: Make it possible to read object code from vmlinux

Browse Source 
The new "object code reading" test shows that it is not possible to read
object code from vmlinux.  That is because the mappings do not map to
the dso.  This patch fixes that.

A side-effect of changing the kernel map is that the "reloc" offset must
be taken into account.  As a result of that separate map functions for
relocation are no longer needed.

Also fixing up the maps to match the symbols no longer makes sense and
so is not done.

The vmlinux dso data_type is now set to either DSO_BINARY_TYPE__VMLINUX
or DSO_BINARY_TYPE__GUEST_VMLINUX as approprite, which enables the
correct file name to be determined by dso__binary_type_file().

This patch breaks the "vmlinux symtab matches kallsyms" test.  That is
fixed in a following patch.

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/1375875537-4509-4-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter
2013-08-07 14:38:47 +03:00
committed by Arnaldo Carvalho de Melo
parent 5b7ba82a75
commit 39b12f7812
6 changed files with 112 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files

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

@@ -3,6 +3,7 @@
#include <linux/types.h>
#include <linux/rbtree.h>
#include <stdbool.h>
#include "types.h"
#include "map.h"
@@ -146,4 +147,11 @@ size_t dso__fprintf_buildid(struct dso *dso, FILE *fp);
size_t dso__fprintf_symbols_by_name(struct dso *dso,
enum map_type type, FILE *fp);
size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp);
static inline bool dso__is_vmlinux(struct dso *dso)
{
return dso->data_type == DSO_BINARY_TYPE__VMLINUX ||
dso->data_type == DSO_BINARY_TYPE__GUEST_VMLINUX;
}
#endif /* __PERF_DSO */