tools/perf/trace/beauty/open_flags.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <sys/types.h>
   3 #include <sys/stat.h>
   4 #include <fcntl.h>
   5
   6 #ifndef O_DIRECT
   7 #define O_DIRECT        00040000
   8 #endif
   9
  10 #ifndef O_DIRECTORY
  11 #define O_DIRECTORY     00200000
  12 #endif
  13
  14 #ifndef O_NOATIME
  15 #define O_NOATIME       01000000
  16 #endif
  17
  18 #ifndef O_TMPFILE
  19 #define O_TMPFILE       020000000
  20 #endif
  21
  22 #undef O_LARGEFILE
  23 #define O_LARGEFILE     00100000
  24
  25 size_t open__scnprintf_flags(unsigned long flags, char *bf, size_t size)
  26 {
  27         int printed = 0;
  28
  29         if (flags == 0)
  30                 return scnprintf(bf, size, "RDONLY");
  31 #define P_FLAG(n) \
  32         if (flags & O_##n) { \
  33                 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
  34                 flags &= ~O_##n; \
  35         }
  36
  37         P_FLAG(RDWR);
  38         P_FLAG(APPEND);
  39         P_FLAG(ASYNC);
  40         P_FLAG(CLOEXEC);
  41         P_FLAG(CREAT);
  42         P_FLAG(DIRECT);
  43         P_FLAG(DIRECTORY);
  44         P_FLAG(EXCL);
  45         P_FLAG(LARGEFILE);
  46         P_FLAG(NOFOLLOW);
  47         P_FLAG(TMPFILE);
  48         P_FLAG(NOATIME);
  49         P_FLAG(NOCTTY);
  50 #ifdef O_NONBLOCK
  51         P_FLAG(NONBLOCK);
  52 #elif O_NDELAY
  53         P_FLAG(NDELAY);
  54 #endif
  55 #ifdef O_PATH
  56         P_FLAG(PATH);
  57 #endif
  58 #ifdef O_DSYNC
  59         if ((flags & O_SYNC) == O_SYNC)
  60                 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", "SYNC");
  61         else {
  62                 P_FLAG(DSYNC);
  63         }
  64 #else
  65         P_FLAG(SYNC);
  66 #endif
  67         P_FLAG(TRUNC);
  68         P_FLAG(WRONLY);
  69 #undef P_FLAG
  70
  71         if (flags)
  72                 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
  73
  74         return printed;
  75 }
  76
  77 size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size, struct syscall_arg *arg)
  78 {
  79         int flags = arg->val;
  80
  81         if (!(flags & O_CREAT))
  82                 arg->mask |= 1 << (arg->idx + 1); /* Mask the mode parm */
  83
  84         return open__scnprintf_flags(flags, bf, size);
  85 }