Re: [PATCH 4/7] perf inject: Do not load map/dso when injecting build-id

From: Namhyung Kim
Date: Thu Sep 24 2020 - 09:21:06 EST


On Thu, Sep 24, 2020 at 10:09 PM Jiri Olsa <jolsa@xxxxxxxxxx> wrote:
>
> On Wed, Sep 23, 2020 at 05:05:34PM +0900, Namhyung Kim wrote:
>
> SNIP
>
> > -static inline int is_no_dso_memory(const char *filename)
> > -{
> > - return !strncmp(filename, "[stack", 6) ||
> > - !strncmp(filename, "/SYSV",5) ||
> > - !strcmp(filename, "[heap]");
> > -}
> > -
> > static inline int is_android_lib(const char *filename)
> > {
> > return strstarts(filename, "/data/app-lib/") ||
> > @@ -158,7 +143,7 @@ struct map *map__new(struct machine *machine, u64 start, u64 len,
> > int anon, no_dso, vdso, android;
> >
> > android = is_android_lib(filename);
> > - anon = is_anon_memory(filename, flags);
> > + anon = is_anon_memory(filename) || flags & MAP_HUGETLB;
>
> what's the reason to take 'flags & MAP_HUGETLB' out of is_anon_memory?

The MAP_HUGETLB is defined in uapi/linux/mman.h and I had trouble
when including the header in the map.h file.

Thanks
Namhyung