tools/perf/trace/beauty/open_flags.c

   1 // SPDX-License-Identifier: LGPL-2.1
   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, bool show_prefix)
  26 {
  27         const char *prefix = "O_";
  28         int printed = 0;
  29
  30         if ((flags & O_ACCMODE) == O_RDONLY)
  31                 printed = scnprintf(bf, size, "%s%s", show_prefix ? prefix : "", "RDONLY");
  32         if (flags == 0)
  33                 return printed;
  34 #define P_FLAG(n) \
  35         if (flags & O_##n) { \
  36                 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
  37                 flags &= ~O_##n; \
  38         }
  39
  40         P_FLAG(RDWR);
  41         P_FLAG(APPEND);
  42         P_FLAG(ASYNC);
  43         P_FLAG(CLOEXEC);
  44         P_FLAG(CREAT);
  45         P_FLAG(DIRECT);
  46         P_FLAG(DIRECTORY);
  47         P_FLAG(EXCL);
  48         P_FLAG(LARGEFILE);
  49         P_FLAG(NOFOLLOW);
  50         P_FLAG(TMPFILE);
  51         P_FLAG(NOATIME);
  52         P_FLAG(NOCTTY);
  53 #ifdef O_NONBLOCK
  54         P_FLAG(NONBLOCK);
  55 #elif O_NDELAY
  56         P_FLAG(NDELAY);
  57 #endif
  58 #ifdef O_PATH
  59         P_FLAG(PATH);
  60 #endif
  61 #ifdef O_DSYNC
  62         if ((flags & O_SYNC) == O_SYNC)
  63                 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", "SYNC");
  64         else {
  65                 P_FLAG(DSYNC);
  66         }
  67 #else
  68         P_FLAG(SYNC);
  69 #endif
  70         P_FLAG(TRUNC);
  71         P_FLAG(WRONLY);
  72 #undef P_FLAG
  73
  74         if (flags)
  75                 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
  76
  77         return printed;
  78 }
  79
  80 size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size, struct syscall_arg *arg)
  81 {
  82         int flags = arg->val;
  83
  84         if (!(flags & O_CREAT))
  85                 arg->mask |= 1 << (arg->idx + 1); /* Mask the mode parm */
  86
  87         return open__scnprintf_flags(flags, bf, size, arg->show_string_prefix);
  88 }