tools/perf/trace/beauty/mmap.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <uapi/linux/mman.h>
   3
   4 static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size,
   5                                                struct syscall_arg *arg)
   6 {
   7         int printed = 0, prot = arg->val;
   8
   9         if (prot == PROT_NONE)
  10                 return scnprintf(bf, size, "NONE");
  11 #define P_MMAP_PROT(n) \
  12         if (prot & PROT_##n) { \
  13                 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
  14                 prot &= ~PROT_##n; \
  15         }
  16
  17         P_MMAP_PROT(EXEC);
  18         P_MMAP_PROT(READ);
  19         P_MMAP_PROT(WRITE);
  20         P_MMAP_PROT(SEM);
  21         P_MMAP_PROT(GROWSDOWN);
  22         P_MMAP_PROT(GROWSUP);
  23 #undef P_MMAP_PROT
  24
  25         if (prot)
  26                 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", prot);
  27
  28         return printed;
  29 }
  30
  31 #define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot
  32
  33 static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size,
  34                                                 struct syscall_arg *arg)
  35 {
  36         int printed = 0, flags = arg->val;
  37
  38         if (flags & MAP_ANONYMOUS)
  39                 arg->mask |= (1 << 4) | (1 << 5); /* Mask 4th ('fd') and 5th ('offset') args, ignored */
  40
  41 #define P_MMAP_FLAG(n) \
  42         if (flags & MAP_##n) { \
  43                 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
  44                 flags &= ~MAP_##n; \
  45         }
  46
  47         P_MMAP_FLAG(SHARED);
  48         P_MMAP_FLAG(PRIVATE);
  49 #ifdef MAP_32BIT
  50         P_MMAP_FLAG(32BIT);
  51 #endif
  52         P_MMAP_FLAG(ANONYMOUS);
  53         P_MMAP_FLAG(DENYWRITE);
  54         P_MMAP_FLAG(EXECUTABLE);
  55         P_MMAP_FLAG(FILE);
  56         P_MMAP_FLAG(FIXED);
  57         P_MMAP_FLAG(GROWSDOWN);
  58         P_MMAP_FLAG(HUGETLB);
  59         P_MMAP_FLAG(LOCKED);
  60         P_MMAP_FLAG(NONBLOCK);
  61         P_MMAP_FLAG(NORESERVE);
  62         P_MMAP_FLAG(POPULATE);
  63         P_MMAP_FLAG(STACK);
  64         P_MMAP_FLAG(UNINITIALIZED);
  65 #undef P_MMAP_FLAG
  66
  67         if (flags)
  68                 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
  69
  70         return printed;
  71 }
  72
  73 #define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags
  74
  75 static size_t syscall_arg__scnprintf_mremap_flags(char *bf, size_t size,
  76                                                   struct syscall_arg *arg)
  77 {
  78         int printed = 0, flags = arg->val;
  79
  80 #define P_MREMAP_FLAG(n) \
  81         if (flags & MREMAP_##n) { \
  82                 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
  83                 flags &= ~MREMAP_##n; \
  84         }
  85
  86         P_MREMAP_FLAG(MAYMOVE);
  87         P_MREMAP_FLAG(FIXED);
  88 #undef P_MREMAP_FLAG
  89
  90         if (flags)
  91                 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
  92
  93         return printed;
  94 }
  95
  96 #define SCA_MREMAP_FLAGS syscall_arg__scnprintf_mremap_flags
  97
  98 static size_t madvise__scnprintf_behavior(int behavior, char *bf, size_t size)
  99 {
 100 #include "trace/beauty/generated/madvise_behavior_array.c"
 101        static DEFINE_STRARRAY(madvise_advices);
 102
 103        if (behavior < strarray__madvise_advices.nr_entries && strarray__madvise_advices.entries[behavior] != NULL)
 104                return scnprintf(bf, size, "MADV_%s", strarray__madvise_advices.entries[behavior]);
 105
 106        return scnprintf(bf, size, "%#", behavior);
 107 }
 108
 109 static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size,
 110                                                       struct syscall_arg *arg)
 111 {
 112         return madvise__scnprintf_behavior(arg->val, bf, size);
 113 }
 114
 115 #define SCA_MADV_BHV syscall_arg__scnprintf_madvise_behavior