1/* $NetBSD: cerror.S,v 1.14 2009/12/14 01:07:42 matt Exp $ */
2
3/*-
4 * Copyright (c) 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Ralph Campbell.
9 *
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28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <machine/asm.h>
36__FBSDID("$FreeBSD: head/lib/libc/mips/sys/cerror.S 209231 2010-06-16 12:55:14Z jchandra $");
37#include "SYS.h"
38
39#if defined(LIBC_SCCS) && !defined(lint)
40#if 0
41 RCSID("from: @(#)cerror.s 8.1 (Berkeley) 6/16/93")
42#else
43 RCSID("$NetBSD: cerror.S,v 1.14 2009/12/14 01:07:42 matt Exp $")
44#endif
45#endif /* LIBC_SCCS and not lint */
46
47 .globl _C_LABEL(__error)
48NESTED_NOPROFILE(__cerror, CALLFRAME_SIZ, ra)
49 .mask 0x80000000, (CALLFRAME_RA - CALLFRAME_SIZ)
50 SETUP_GP
51 PTR_SUBU sp, sp, CALLFRAME_SIZ
52 SETUP_GP64(CALLFRAME_GP, __cerror)
53 SAVE_GP(CALLFRAME_GP)
54
55 PTR_S ra, CALLFRAME_RA(sp)
56 REG_S v0, CALLFRAME_S0(sp) # save errno value
57
58 PTR_LA t9, _C_LABEL(__error) # locate address of errno
59 jalr t9
60
61 REG_L t0, CALLFRAME_S0(sp)
62 PTR_L ra, CALLFRAME_RA(sp)
63 INT_S t0, 0(v0) # update errno value
64
65 RESTORE_GP64
66 PTR_ADDU sp, sp, CALLFRAME_SIZ
67
68 li v0, -1
69 li v1, -1
70
71 j ra
72END(__cerror)
2
3/*-
4 * Copyright (c) 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Ralph Campbell.
9 *
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28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <machine/asm.h>
36__FBSDID("$FreeBSD: head/lib/libc/mips/sys/cerror.S 209231 2010-06-16 12:55:14Z jchandra $");
37#include "SYS.h"
38
39#if defined(LIBC_SCCS) && !defined(lint)
40#if 0
41 RCSID("from: @(#)cerror.s 8.1 (Berkeley) 6/16/93")
42#else
43 RCSID("$NetBSD: cerror.S,v 1.14 2009/12/14 01:07:42 matt Exp $")
44#endif
45#endif /* LIBC_SCCS and not lint */
46
47 .globl _C_LABEL(__error)
48NESTED_NOPROFILE(__cerror, CALLFRAME_SIZ, ra)
49 .mask 0x80000000, (CALLFRAME_RA - CALLFRAME_SIZ)
50 SETUP_GP
51 PTR_SUBU sp, sp, CALLFRAME_SIZ
52 SETUP_GP64(CALLFRAME_GP, __cerror)
53 SAVE_GP(CALLFRAME_GP)
54
55 PTR_S ra, CALLFRAME_RA(sp)
56 REG_S v0, CALLFRAME_S0(sp) # save errno value
57
58 PTR_LA t9, _C_LABEL(__error) # locate address of errno
59 jalr t9
60
61 REG_L t0, CALLFRAME_S0(sp)
62 PTR_L ra, CALLFRAME_RA(sp)
63 INT_S t0, 0(v0) # update errno value
64
65 RESTORE_GP64
66 PTR_ADDU sp, sp, CALLFRAME_SIZ
67
68 li v0, -1
69 li v1, -1
70
71 j ra
72END(__cerror)