root/tools/perf/trace/beauty/msg_flags.c
// SPDX-License-Identifier: LGPL-2.1
#include <sys/types.h>
#include <sys/socket.h>

#ifndef MSG_PROBE
#define MSG_PROBE                    0x10
#endif
#ifndef MSG_WAITFORONE
#define MSG_WAITFORONE             0x10000
#endif
#ifndef MSG_BATCH
#define MSG_BATCH                  0x40000
#endif
#ifndef MSG_SOCK_DEVMEM
#define MSG_SOCK_DEVMEM          0x2000000
#endif
#ifndef MSG_ZEROCOPY
#define MSG_ZEROCOPY             0x4000000
#endif
#ifndef MSG_SPLICE_PAGES
#define MSG_SPLICE_PAGES        0x8000000
#endif
#ifndef MSG_FASTOPEN
#define MSG_FASTOPEN            0x20000000
#endif
#ifndef MSG_CMSG_CLOEXEC
# define MSG_CMSG_CLOEXEC       0x40000000
#endif

static size_t syscall_arg__scnprintf_msg_flags(char *bf, size_t size,
                                               struct syscall_arg *arg)
{
        bool show_prefix = arg->show_string_prefix;
        const char *prefix = "MSG_";
        int printed = 0, flags = arg->val;

        if (flags == 0)
                return scnprintf(bf, size, "NONE");
#define P_MSG_FLAG(n) \
        if (flags & MSG_##n) { \
                printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
                flags &= ~MSG_##n; \
        }

        P_MSG_FLAG(OOB);
        P_MSG_FLAG(PEEK);
        P_MSG_FLAG(DONTROUTE);
        P_MSG_FLAG(CTRUNC);
        P_MSG_FLAG(PROBE);
        P_MSG_FLAG(TRUNC);
        P_MSG_FLAG(DONTWAIT);
        P_MSG_FLAG(EOR);
        P_MSG_FLAG(WAITALL);
        P_MSG_FLAG(FIN);
        P_MSG_FLAG(SYN);
        P_MSG_FLAG(CONFIRM);
        P_MSG_FLAG(RST);
        P_MSG_FLAG(ERRQUEUE);
        P_MSG_FLAG(NOSIGNAL);
        P_MSG_FLAG(MORE);
        P_MSG_FLAG(WAITFORONE);
        P_MSG_FLAG(BATCH);
        P_MSG_FLAG(SOCK_DEVMEM);
        P_MSG_FLAG(ZEROCOPY);
        P_MSG_FLAG(SPLICE_PAGES);
        P_MSG_FLAG(FASTOPEN);
        P_MSG_FLAG(CMSG_CLOEXEC);
#undef P_MSG_FLAG

        if (flags)
                printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);

        return printed;
}

#define SCA_MSG_FLAGS syscall_arg__scnprintf_msg_flags