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Split _dl_writev out from _dl_debug_vdprintf.

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This commit is contained in:
Roland McGrath
2013-05-06 11:30:41 -07:00
parent b7dab1e4d7
commit d5e8275481
4 changed files with 104 additions and 20 deletions
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23
elf/dl-misc.c
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@ -31,7 +31,8 @@
#include <sys/uio.h>
#include <sysdep.h>
#include <_itoa.h>
#include <bits/libc-lock.h>
#include <dl-writev.h>
/* Read the whole contents of FILE into new mmap'd space with given
protections. *SIZEP gets the size of the file. On error MAP_FAILED
@ -239,25 +240,7 @@ _dl_debug_vdprintf (int fd, int tag_p, const char *fmt, va_list arg)
}
/* Finally write the result. */
#ifdef HAVE_INLINED_SYSCALLS
INTERNAL_SYSCALL_DECL (err);
INTERNAL_SYSCALL (writev, err, 3, fd, &iov, niov);
#elif RTLD_PRIVATE_ERRNO
/* We have to take this lock just to be sure we don't clobber the private
errno when it's being used by another thread that cares about it.
Yet we must be sure not to try calling the lock functions before
the thread library is fully initialized. */
if (__builtin_expect (INTUSE (_dl_starting_up), 0))
__writev (fd, iov, niov);
else
{
__rtld_lock_lock_recursive (GL(dl_load_lock));
__writev (fd, iov, niov);
__rtld_lock_unlock_recursive (GL(dl_load_lock));
}
#else
__writev (fd, iov, niov);
#endif
_dl_writev (fd, iov, niov);
}