linux/tools/perf/trace/beauty/waitid_options.c
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   1// SPDX-License-Identifier: LGPL-2.1
   2#include <sys/types.h>
   3#include <sys/wait.h>
   4
   5static 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
  30