• A
    perf trace: Support MAP_FIXED_NOREPLACE · 4e5c01a7
    Arnaldo Carvalho de Melo 提交于
    Introduced in a4ff8e86 ("mm: introduce MAP_FIXED_NOREPLACE"), and
    now that we have that define in the just syncronized
    tools/arch/*/include/uapi/asm/mman.h files, add support for it.
    
    This should really transition to autogeneration of string tables as
    done for various other things:
    
      $ ls /tmp/build/perf/trace/beauty/generated/*.c
      arch_errno_name_array.c kcmp_type_array.c madvise_behavior_array.c
      pkey_alloc_access_rights_array.c prctl_option_array.c
      $ head /tmp/build/perf/trace/beauty/generated/madvise_behavior_array.c
      static const char *madvise_advices[] = {
    	[0] = "NORMAL",
    	[1] = "RANDOM",
    	[2] = "SEQUENTIAL",
    	[3] = "WILLNEED",
    	[4] = "DONTNEED",
    	[8] = "FREE",
    	[9] = "REMOVE",
    	[10] = "DONTFORK",
    	[11] = "DOFORK",
      $
    
    Till then, add support for this the old way.
    
    Also it has to be ifdef'ed, because arches like mips still don't define
    it. The proper solution will be to have per-arch tables for these
    values to support cross-analysis.
    
    Cc: Adrian Hunter <adrian.hunter@intel.com>
    Cc: David Ahern <dsahern@gmail.com>
    Cc: Jiri Olsa <jolsa@kernel.org>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Michal Hocko <mhocko@suse.com>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Wang Nan <wangnan0@huawei.com>
    Link: https://lkml.kernel.org/n/tip-td9t5vhjltqnlzaurkkgq8cn@git.kernel.orgSignef-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
    4e5c01a7
mmap.c 3.1 KB