tools/perf/trace/beauty/waitid_options.c

   1 // SPDX-License-Identifier: LGPL-2.1
   2 #include <sys/types.h>
   3 #include <sys/wait.h>
   4
   5 static size_t syscall_arg__scnprintf_waitid_options(char *bf, size_t size,
   6                                                     struct syscall_arg *arg)
   7 {
   8         bool show_prefix = arg->show_string_prefix;
   9         const char *prefix = "W";
  10         int printed = 0, options = arg->val;
  11
  12 #define P_OPTION(n) \
  13         if (options & W##n) { \
  14                 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "",  #n); \
  15                 options &= ~W##n; \
  16         }
  17
  18         P_OPTION(NOHANG);
  19         P_OPTION(UNTRACED);
  20         P_OPTION(CONTINUED);
  21 #undef P_OPTION
  22
  23         if (options)
  24                 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", options);
  25
  26         return printed;
  27 }
  28
  29 #define SCA_WAITID_OPTIONS syscall_arg__scnprintf_waitid_options