tools/perf/trace/beauty/msg_flags.c

   1 // SPDX-License-Identifier: LGPL-2.1
   2 #include <sys/types.h>
   3 #include <sys/socket.h>
   4
   5 #ifndef MSG_PROBE
   6 #define MSG_PROBE                    0x10
   7 #endif
   8 #ifndef MSG_WAITFORONE
   9 #define MSG_WAITFORONE             0x10000
  10 #endif
  11 #ifndef MSG_BATCH
  12 #define MSG_BATCH                  0x40000
  13 #endif
  14 #ifndef MSG_SOCK_DEVMEM
  15 #define MSG_SOCK_DEVMEM          0x2000000
  16 #endif
  17 #ifndef MSG_ZEROCOPY
  18 #define MSG_ZEROCOPY             0x4000000
  19 #endif
  20 #ifndef MSG_SPLICE_PAGES
  21 #define MSG_SPLICE_PAGES        0x8000000
  22 #endif
  23 #ifndef MSG_FASTOPEN
  24 #define MSG_FASTOPEN            0x20000000
  25 #endif
  26 #ifndef MSG_CMSG_CLOEXEC
  27 # define MSG_CMSG_CLOEXEC       0x40000000
  28 #endif
  29
  30 static size_t syscall_arg__scnprintf_msg_flags(char *bf, size_t size,
  31                                                struct syscall_arg *arg)
  32 {
  33         bool show_prefix = arg->show_string_prefix;
  34         const char *prefix = "MSG_";
  35         int printed = 0, flags = arg->val;
  36
  37         if (flags == 0)
  38                 return scnprintf(bf, size, "NONE");
  39 #define P_MSG_FLAG(n) \
  40         if (flags & MSG_##n) { \
  41                 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
  42                 flags &= ~MSG_##n; \
  43         }
  44
  45         P_MSG_FLAG(OOB);
  46         P_MSG_FLAG(PEEK);
  47         P_MSG_FLAG(DONTROUTE);
  48         P_MSG_FLAG(CTRUNC);
  49         P_MSG_FLAG(PROBE);
  50         P_MSG_FLAG(TRUNC);
  51         P_MSG_FLAG(DONTWAIT);
  52         P_MSG_FLAG(EOR);
  53         P_MSG_FLAG(WAITALL);
  54         P_MSG_FLAG(FIN);
  55         P_MSG_FLAG(SYN);
  56         P_MSG_FLAG(CONFIRM);
  57         P_MSG_FLAG(RST);
  58         P_MSG_FLAG(ERRQUEUE);
  59         P_MSG_FLAG(NOSIGNAL);
  60         P_MSG_FLAG(MORE);
  61         P_MSG_FLAG(WAITFORONE);
  62         P_MSG_FLAG(BATCH);
  63         P_MSG_FLAG(SOCK_DEVMEM);
  64         P_MSG_FLAG(ZEROCOPY);
  65         P_MSG_FLAG(SPLICE_PAGES);
  66         P_MSG_FLAG(FASTOPEN);
  67         P_MSG_FLAG(CMSG_CLOEXEC);
  68 #undef P_MSG_FLAG
  69
  70         if (flags)
  71                 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
  72
  73         return printed;
  74 }
  75
  76 #define SCA_MSG_FLAGS syscall_arg__scnprintf_msg_flags