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Remove socket.S implementation

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This patch removes the socket.S implementation for all ports and replace
it by a C implementation using socketcall.  For ports that implement
the syscall directly, there is no change.

The patch idea is to simplify the socket function implementation that
uses the socketcall to be based on C implemetation instead of a pseudo
assembly implementation with arch specific parts.  The patch then remove
the assembly implementatation for the ports which uses socketcall
(i386, microblaze, mips, powerpc, sparc, m68k, s390 and sh).

I have cross-build GLIBC for afore-mentioned ports and tested on both
i386 and ppc32 without regressions.
This commit is contained in:
Adhemerval Zanella
2015-05-22 08:36:08 -03:00
parent dc6b5aed1b
commit 60dce8b904
63 changed files with 702 additions and 1718 deletions
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22
sysdeps/unix/sysv/linux/sendmmsg.c
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@ -50,11 +50,14 @@ __sendmmsg (int fd, struct mmsghdr *vmessages, unsigned int vlen, int flags)
libc_hidden_def (__sendmmsg)
weak_alias (__sendmmsg, sendmmsg)
#elif defined __NR_socketcall
# ifndef __ASSUME_SENDMMSG_SOCKETCALL
extern int __internal_sendmmsg (int fd, struct mmsghdr *vmessages,
unsigned int vlen, int flags)
attribute_hidden;
# include <socketcall.h>
# ifdef __ASSUME_SENDMMSG_SOCKETCALL
int
__sendmmsg (int fd, struct mmsghdr *vmessages, unsigned int vlen, int flags)
{
return SOCKETCALL_CANCEL (sendmmsg, fd, vmessages, vlen, flags);
}
# else
static int have_sendmmsg;
int
@ -62,7 +65,7 @@ __sendmmsg (int fd, struct mmsghdr *vmessages, unsigned int vlen, int flags)
{
if (__glibc_likely (have_sendmmsg >= 0))
{
int ret = __internal_sendmmsg (fd, vmessages, vlen, flags);
int ret = SOCKETCALL_CANCEL (sendmmsg, fd, vmessages, vlen, flags);
/* The kernel returns -EINVAL for unknown socket operations.
We need to convert that error to an ENOSYS error. */
if (__builtin_expect (ret < 0, 0)
@ -73,7 +76,7 @@ __sendmmsg (int fd, struct mmsghdr *vmessages, unsigned int vlen, int flags)
descriptor and all other parameters cleared. This call
will not cause any harm and it will return
immediately. */
ret = __internal_sendmmsg (-1, 0, 0, 0);
ret = SOCKETCALL_CANCEL (invalid, -1);
if (errno == EINVAL)
{
have_sendmmsg = -1;
@ -91,12 +94,9 @@ __sendmmsg (int fd, struct mmsghdr *vmessages, unsigned int vlen, int flags)
__set_errno (ENOSYS);
return -1;
}
# endif /* __ASSUME_SENDMMSG_SOCKETCALL */
libc_hidden_def (__sendmmsg)
weak_alias (__sendmmsg, sendmmsg)
# else
/* When __ASSUME_SENDMMSG_SOCKETCALL sendmmsg is defined in
internal_sendmmsg.S. */
# endif
#else
# include <socket/sendmmsg.c>
#endif