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#include "__stdio.h" // for __FILE, __libc_fadd
#include <atomic.h> // for LIBC_LOCK, LIBC_UNLOCK
#include <fcntl.h> // for O_WRONLY
#include <stddef.h> // for NULL
#include <stdio.h> // for stdout
#include <sys/cdefs.h>
#include <unistd.h> // for STDOUT_FILENO
#define BUFSIZ 4096
__weak char __stdout_buffer[0];
static atomic_flag __stdio_lock = ATOMIC_FLAG_INIT;
struct __FILE __stdout = { .fd = STDOUT_FILENO,
.flags = O_WRONLY,
.type = 1,
.buf = __stdout_buffer,
.buf_len = 0,
.buf_size = BUFSIZ,
.buf_pos = 0,
.eof = 0,
.unget_cnt = 0,
.offset = 0,
.next = NULL,
.lock = ATOMIC_FLAG_INIT };
struct __FILE *const stdout = (struct __FILE *)&__stdout;
void __libc_fadd(struct __FILE *f)
{
LIBC_LOCK(__stdio_lock);
struct __FILE *cur = &__stdout;
while (cur->next)
cur = cur->next;
cur->next = f;
LIBC_UNLOCK(__stdio_lock);
}
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