awful.c

#ifdef __clang__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wstring-plus-int"
#endif

struct page_flag
{
    unsigned long val;
    const char *name;
};

/* 10 = strlen(PAGE_FLAG_) */
#define X(macro)                          \
    {                                     \
        .val = macro, .name = #macro + 10 \
    }

#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))

static const struct page_flag flags[] = {
    X(PAGE_FLAG_LOCKED),    X(PAGE_FLAG_DIRTY),
    X(PAGE_FLAG_PINNED),    {.val = PAGE_BUDDY, .name = "BUDDY"},
    X(PAGE_FLAG_BUFFER),    X(PAGE_FLAG_FILESYSTEM1),
    X(PAGE_FLAG_WAITERS),   X(PAGE_FLAG_UPTODATE),
    X(PAGE_FLAG_WRITEBACK), X(PAGE_FLAG_READAHEAD),
    X(PAGE_FLAG_LRU),       X(PAGE_FLAG_REFERENCED),
};

#ifdef __clang__
#pragma GCC diagnostic pop
#endif

#undef X