linux/tools/perf/trace/beauty/msg_flags.c
<<
>>
Prefs
   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_SENDPAGE_NOTLAST
  12#define MSG_SENDPAGE_NOTLAST       0x20000
  13#endif
  14#ifndef MSG_FASTOPEN
  15#define MSG_FASTOPEN            0x20000000
  16#endif
  17#ifndef MSG_CMSG_CLOEXEC
  18# define MSG_CMSG_CLOEXEC       0x40000000
  19#endif
  20
  21static size_t syscall_arg__scnprintf_msg_flags(char *bf, size_t size,
  22                                               struct syscall_arg *arg)
  23{
  24        bool show_prefix = arg->show_string_prefix;
  25        const char *prefix = "MSG_";
  26        int printed = 0, flags = arg->val;
  27
  28        if (flags == 0)
  29                return scnprintf(bf, size, "NONE");
  30#define P_MSG_FLAG(n) \
  31        if (flags & MSG_##n) { \
  32                printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
  33                flags &= ~MSG_##n; \
  34        }
  35
  36        P_MSG_FLAG(OOB);
  37        P_MSG_FLAG(PEEK);
  38        P_MSG_FLAG(DONTROUTE);
  39        P_MSG_FLAG(CTRUNC);
  40        P_MSG_FLAG(PROBE);
  41        P_MSG_FLAG(TRUNC);
  42        P_MSG_FLAG(DONTWAIT);
  43        P_MSG_FLAG(EOR);
  44        P_MSG_FLAG(WAITALL);
  45        P_MSG_FLAG(FIN);
  46        P_MSG_FLAG(SYN);
  47        P_MSG_FLAG(CONFIRM);
  48        P_MSG_FLAG(RST);
  49        P_MSG_FLAG(ERRQUEUE);
  50        P_MSG_FLAG(NOSIGNAL);
  51        P_MSG_FLAG(MORE);
  52        P_MSG_FLAG(WAITFORONE);
  53        P_MSG_FLAG(SENDPAGE_NOTLAST);
  54        P_MSG_FLAG(FASTOPEN);
  55        P_MSG_FLAG(CMSG_CLOEXEC);
  56#undef P_MSG_FLAG
  57
  58        if (flags)
  59                printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
  60
  61        return printed;
  62}
  63
  64#define SCA_MSG_FLAGS syscall_arg__scnprintf_msg_flags
  65