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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-09-30 00:07:27 +0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-09-30 00:07:27 +0300 |
commit | 9012e3dda2a70cff7986e08d0a9cf3a8e04691e6 (patch) | |
tree | aca87c3f2f39eba1a8522c9008cfe34b1d06f631 /tools/perf/trace/beauty/mmap.c | |
parent | d758d5d474ac5a9eb4e23188261c75bb1393afdf (diff) | |
download | linux-9012e3dda2a70cff7986e08d0a9cf3a8e04691e6.tar.xz |
perf trace beauty: Add script to autogenerate mremap's flags args string/id table
It'll also conditionally generate the defines, so that if we don't have
those when building a new tool tarball in an older systems, we get
those, and we need them sometimes in the actual scnprintf routine, such
as when checking if a flags means we have an extra arg, like with
MREMAP_FIXED.
$ tools/perf/trace/beauty/mremap_flags.sh
static const char *mremap_flags[] = {
[ilog2(1) + 1] = "MAYMOVE",
#ifndef MREMAP_MAYMOVE
#define MREMAP_MAYMOVE 1
#endif
[ilog2(2) + 1] = "FIXED",
#ifndef MREMAP_FIXED
#define MREMAP_FIXED 2
#endif
[ilog2(4) + 1] = "DONTUNMAP",
#ifndef MREMAP_DONTUNMAP
#define MREMAP_DONTUNMAP 4
#endif
};
$
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/trace/beauty/mmap.c')
-rw-r--r-- | tools/perf/trace/beauty/mmap.c | 32 |
1 files changed, 13 insertions, 19 deletions
diff --git a/tools/perf/trace/beauty/mmap.c b/tools/perf/trace/beauty/mmap.c index 862c8331dded..58a70ffa0a88 100644 --- a/tools/perf/trace/beauty/mmap.c +++ b/tools/perf/trace/beauty/mmap.c @@ -34,7 +34,7 @@ static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size, #define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot #include "trace/beauty/generated/mmap_flags_array.c" - static DEFINE_STRARRAY(mmap_flags, "MAP_"); +static DEFINE_STRARRAY(mmap_flags, "MAP_"); static size_t mmap__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix) { @@ -54,28 +54,22 @@ static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size, #define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags -static size_t syscall_arg__scnprintf_mremap_flags(char *bf, size_t size, - struct syscall_arg *arg) -{ - const char *flags_prefix = "MREMAP_"; - bool show_prefix = arg->show_string_prefix; - int printed = 0, flags = arg->val; +#include "trace/beauty/generated/mremap_flags_array.c" +static DEFINE_STRARRAY(mremap_flags, "MREMAP_"); -#define P_MREMAP_FLAG(n) \ - if (flags & MREMAP_##n) { \ - printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? flags_prefix : "", #n); \ - flags &= ~MREMAP_##n; \ - } +static size_t mremap__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix) +{ + return strarray__scnprintf_flags(&strarray__mremap_flags, bf, size, show_prefix, flags); +} - P_MREMAP_FLAG(MAYMOVE); - P_MREMAP_FLAG(FIXED); - P_MREMAP_FLAG(DONTUNMAP); -#undef P_MREMAP_FLAG +static size_t syscall_arg__scnprintf_mremap_flags(char *bf, size_t size, struct syscall_arg *arg) +{ + unsigned long flags = arg->val; - if (flags) - printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); + if (!(flags & MREMAP_FIXED)) + arg->mask |= (1 << 5); /* Mask 5th ('new_address') args, ignored */ - return printed; + return mremap__scnprintf_flags(flags, bf, size, arg->show_string_prefix); } #define SCA_MREMAP_FLAGS syscall_arg__scnprintf_mremap_flags |