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 * --- 18 unchanged lines hidden (view full) --- 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) |