diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-09-12 16:47:57 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-09-13 15:26:30 -0300 |
| commit | fbef103fad5009827965b10aedbecb1786904f4d (patch) | |
| tree | f82580214bbc2fd215c76e741b7f0b29b72354f5 /tools/perf | |
| parent | 277cf08f3febd9d0921f4ff1b46fd5d294fe3942 (diff) | |
| download | linux-fbef103fad5009827965b10aedbecb1786904f4d.tar.gz linux-fbef103fad5009827965b10aedbecb1786904f4d.tar.bz2 linux-fbef103fad5009827965b10aedbecb1786904f4d.zip | |
perf tools: Do hugetlb handling in more systems
The csets:
0ac3348e5024 ("perf tools: Recognize hugetlb mapping as anon mapping")
d7e404af115b ("perf record: Mark MAP_HUGETLB when synthesizing mmap events")
Added code conditional on MAP_HUGETLB, to make it build in older systems
where that define wasn't available. Now that we grabbed copies of
uapi/linux/mmap.h to have all those definitions in tools/, use it so
that we can support building the tools for older systems (without the
MAP_HUGETLB define in its libc headers) using new kernels that support
such maps.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: Zefan Li <lizefan@huawei.com>
Link: http://lkml.kernel.org/n/tip-wv6oqbfkpxbix4umj2kcfmaz@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/event.c | 7 | ||||
| -rw-r--r-- | tools/perf/util/map.c | 9 |
2 files changed, 4 insertions, 12 deletions
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index 6c3017139c67..2880e2226fdb 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -1,5 +1,5 @@ #include <linux/types.h> -#include <sys/mman.h> +#include <uapi/linux/mman.h> /* To get things like MAP_HUGETLB even on older libc headers */ #include <api/fs/fs.h> #include "event.h" #include "debug.h" @@ -249,10 +249,8 @@ int perf_event__synthesize_mmap_events(struct perf_tool *tool, bool truncation = false; unsigned long long timeout = proc_map_timeout * 1000000ULL; int rc = 0; -#ifdef MAP_HUGETLB const char *hugetlbfs_mnt = hugetlbfs__mountpoint(); int hugetlbfs_mnt_len = hugetlbfs_mnt ? strlen(hugetlbfs_mnt) : 0; -#endif if (machine__is_default_guest(machine)) return 0; @@ -347,12 +345,11 @@ out: if (!strcmp(execname, "")) strcpy(execname, anonstr); -#ifdef MAP_HUGETLB + if (!strncmp(execname, hugetlbfs_mnt, hugetlbfs_mnt_len)) { strcpy(execname, anonstr); event->mmap2.flags |= MAP_HUGETLB; } -#endif size = strlen(execname) + 1; memcpy(event->mmap2.filename, execname, size); diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index d51a1257973b..c662fef95d14 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -6,7 +6,7 @@ #include <string.h> #include <stdio.h> #include <unistd.h> -#include <sys/mman.h> +#include <uapi/linux/mman.h> /* To get things like MAP_HUGETLB even on older libc headers */ #include "map.h" #include "thread.h" #include "strlist.h" @@ -27,12 +27,7 @@ const char *map_type__name[MAP__NR_TYPES] = { static inline int is_anon_memory(const char *filename, u32 flags) { - u32 anon_flags = 0; - -#ifdef MAP_HUGETLB - anon_flags |= MAP_HUGETLB; -#endif - return flags & anon_flags || + return flags & MAP_HUGETLB || !strcmp(filename, "//anon") || !strncmp(filename, "/dev/zero", sizeof("/dev/zero") - 1) || !strncmp(filename, "/anon_hugepage", sizeof("/anon_hugepage") - 1); |