Switch to new ABI (return values now in a0/a1; v0/v1 are no more)
This commit is contained in:
matt
parent
2d9adf0d04
commit
8a3081d220
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@ -1,4 +1,4 @@
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/* $NetBSD: SYS.h,v 1.1 2014/09/19 17:36:25 matt Exp $ */
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/* $NetBSD: SYS.h,v 1.2 2015/03/27 06:44:28 matt Exp $ */
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/*-
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* Copyright (c) 2014 The NetBSD Foundation, Inc.
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@ -32,7 +32,7 @@
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#include <sys/syscall.h>
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#include <machine/asm.h>
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#define SYSTRAP(x) li v0,SYS_ ## x; scall
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#define SYSTRAP(x) li t6,SYS_ ## x; scall
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#define JUMP_TO_CERROR() j _C_LABEL(__cerror)
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/*
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@ -1,10 +1,10 @@
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/* $NetBSD: __setjmp14.S,v 1.1 2014/09/19 17:36:25 matt Exp $ */
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/* $NetBSD: __setjmp14.S,v 1.2 2015/03/27 06:44:28 matt Exp $ */
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#include "SYS.h"
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#include "assym.h"
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#if defined(LIBC_SCCS)
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__RCSID("$NetBSD: __setjmp14.S,v 1.1 2014/09/19 17:36:25 matt Exp $")
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__RCSID("$NetBSD: __setjmp14.S,v 1.2 2015/03/27 06:44:28 matt Exp $")
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#endif
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/*
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@ -21,6 +21,9 @@ ENTRY(__setjmp14)
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li a1, 1
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REG_S a1, JB_MAGIC(a0) /* indicate sigmask */
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REG_S ra, JB_RA(a0) /* save return address */
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REG_S sp, JB_SP(a0) /* save stack pointer */
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REG_S gp, JB_GP(a0) /* save global pointer */
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REG_S tp, JB_TP(a0) /* save thread pointer */
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REG_S s0, JB_S0(a0) /* save callee saved register */
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REG_S s1, JB_S1(a0) /* save callee saved register */
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REG_S s2, JB_S2(a0) /* save callee saved register */
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@ -33,40 +36,36 @@ ENTRY(__setjmp14)
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REG_S s9, JB_S9(a0) /* save callee saved register */
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REG_S s10, JB_S10(a0) /* save callee saved register */
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REG_S s11, JB_S11(a0) /* save callee saved register */
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REG_S sp, JB_SP(a0) /* save stack pointer */
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REG_S tp, JB_TP(a0) /* save thread pointer */
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REG_S gp, JB_GP(a0) /* save global pointer */
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#ifndef _SOFT_FLOAT
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frcsr t2 /* get FSCR */
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REG_S t2, JB_FCSR(a0) /* save it */
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fsd fs0, JB_F0(a0) /* save callee saved register */
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fsd fs1, JB_F1(a0) /* save callee saved register */
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fsd fs2, JB_F2(a0) /* save callee saved register */
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fsd fs3, JB_F3(a0) /* save callee saved register */
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fsd fs4, JB_F4(a0) /* save callee saved register */
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fsd fs5, JB_F5(a0) /* save callee saved register */
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fsd fs6, JB_F6(a0) /* save callee saved register */
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fsd fs7, JB_F7(a0) /* save callee saved register */
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fsd fs8, JB_F8(a0) /* save callee saved register */
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fsd fs9, JB_F9(a0) /* save callee saved register */
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fsd fs10, JB_F10(a0) /* save callee saved register */
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fsd fs11, JB_F11(a0) /* save callee saved register */
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fsd fs12, JB_F12(a0) /* save callee saved register */
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fsd fs13, JB_F13(a0) /* save callee saved register */
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fsd fs14, JB_F14(a0) /* save callee saved register */
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fsd fs15, JB_F15(a0) /* save callee saved register */
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fsd fs0, JB_FS0(a0) /* save callee saved register */
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fsd fs1, JB_FS1(a0) /* save callee saved register */
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fsd fs2, JB_FS2(a0) /* save callee saved register */
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fsd fs3, JB_FS3(a0) /* save callee saved register */
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fsd fs4, JB_FS4(a0) /* save callee saved register */
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fsd fs5, JB_FS5(a0) /* save callee saved register */
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fsd fs6, JB_FS6(a0) /* save callee saved register */
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fsd fs7, JB_FS7(a0) /* save callee saved register */
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fsd fs8, JB_FS8(a0) /* save callee saved register */
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fsd fs9, JB_FS9(a0) /* save callee saved register */
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fsd fs10, JB_FS10(a0) /* save callee saved register */
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fsd fs11, JB_FS11(a0) /* save callee saved register */
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#endif
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addi a2, a0, JB_SIGMASK /* &sigmask */
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li a1, 0
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li a0, SIG_BLOCK
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SYSTRAP(__sigprocmask14) /* assume no error */
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li v0, 0 /* success */ /* indicate success */
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li a0, 0 /* success */ /* indicate success */
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ret /* error */ /* return */
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END(__setjmp14)
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ENTRY(__longjmp14)
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REG_L ra, JB_RA(a0) /* restore return address */
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REG_L sp, JB_SP(a0) /* restore stack pointer */
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REG_L gp, JB_GP(a0) /* restore global pointer */
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#REG_L tp, JB_TP(a0) /* restore thread pointer */
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REG_L s0, JB_S0(a0) /* restore callee saved register */
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REG_L s1, JB_S1(a0) /* restore callee saved register */
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REG_L s2, JB_S2(a0) /* restore callee saved register */
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@ -79,28 +78,21 @@ ENTRY(__longjmp14)
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REG_L s9, JB_S9(a0) /* restore callee saved register */
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REG_L s10, JB_S10(a0) /* restore callee saved register */
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REG_L s11, JB_S11(a0) /* restore callee saved register */
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REG_L sp, JB_SP(a0) /* restore stack pointer */
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#REG_L tp, JB_TP(a0) /* restore thread pointer */
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REG_L gp, JB_GP(a0) /* restore global pointer */
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#ifndef _SOFT_FLOAT
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REG_L t2, JB_FCSR(a0) /* get it */
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fscsr t2 /* restore FSCR */
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fld fs0, JB_F0(a0) /* restore callee saved register */
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fld fs1, JB_F1(a0) /* restore callee saved register */
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fld fs2, JB_F2(a0) /* restore callee saved register */
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fld fs3, JB_F3(a0) /* restore callee saved register */
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fld fs4, JB_F4(a0) /* restore callee saved register */
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fld fs5, JB_F5(a0) /* restore callee saved register */
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fld fs6, JB_F6(a0) /* restore callee saved register */
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fld fs7, JB_F7(a0) /* restore callee saved register */
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fld fs8, JB_F8(a0) /* restore callee saved register */
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fld fs9, JB_F9(a0) /* restore callee saved register */
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fld fs10, JB_F10(a0) /* restore callee saved register */
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fld fs11, JB_F11(a0) /* restore callee saved register */
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fld fs12, JB_F12(a0) /* restore callee saved register */
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fld fs13, JB_F13(a0) /* restore callee saved register */
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fld fs14, JB_F14(a0) /* restore callee saved register */
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fld fs15, JB_F15(a0) /* restore callee saved register */
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fld fs0, JB_FS0(a0) /* restore callee saved register */
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fld fs1, JB_FS1(a0) /* restore callee saved register */
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fld fs2, JB_FS2(a0) /* restore callee saved register */
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fld fs3, JB_FS3(a0) /* restore callee saved register */
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fld fs4, JB_FS4(a0) /* restore callee saved register */
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fld fs5, JB_FS5(a0) /* restore callee saved register */
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fld fs6, JB_FS6(a0) /* restore callee saved register */
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fld fs7, JB_FS7(a0) /* restore callee saved register */
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fld fs8, JB_FS8(a0) /* restore callee saved register */
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fld fs9, JB_FS9(a0) /* restore callee saved register */
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fld fs10, JB_FS10(a0) /* restore callee saved register */
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fld fs11, JB_FS11(a0) /* restore callee saved register */
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#endif
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move t1, a1 /* save return value */
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li a2, 0
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@ -108,8 +100,8 @@ ENTRY(__longjmp14)
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li a0, SIG_SETMASK
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SYSTRAP(__sigprocmask14) /* assume no error */
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nop /* error */
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li v0, 1 /* success */ /* default return value */
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li a0, 1 /* success */ /* default return value */
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beqz t1, 1f /* test return value */
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move v0, t1 /* use it if not 0 */
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move a0, t1 /* use it if not 0 */
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1: ret
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END(__longjmp14)
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@ -1,4 +1,4 @@
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/* $NetBSD: _setjmp.S,v 1.1 2014/09/19 17:36:25 matt Exp $ */
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/* $NetBSD: _setjmp.S,v 1.2 2015/03/27 06:44:28 matt Exp $ */
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/*-
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* Copyright (c) 2014 The NetBSD Foundation, Inc.
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@ -33,7 +33,7 @@
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#include "assym.h"
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#if defined(LIBC_SCCS)
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__RCSID("$NetBSD: _setjmp.S,v 1.1 2014/09/19 17:36:25 matt Exp $")
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__RCSID("$NetBSD: _setjmp.S,v 1.2 2015/03/27 06:44:28 matt Exp $")
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#endif
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/*
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@ -49,6 +49,9 @@ __RCSID("$NetBSD: _setjmp.S,v 1.1 2014/09/19 17:36:25 matt Exp $")
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ENTRY(_setjmp)
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REG_S zero, JB_MAGIC(a0) /* indicate no sigmask */
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REG_S ra, JB_RA(a0) /* save return address */
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REG_S sp, JB_SP(a0) /* save stack pointer */
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REG_S gp, JB_GP(a0) /* save global pointer */
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REG_S tp, JB_TP(a0) /* save thread pointer */
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REG_S s0, JB_S0(a0) /* save callee saved register */
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REG_S s1, JB_S1(a0) /* save callee saved register */
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REG_S s2, JB_S2(a0) /* save callee saved register */
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@ -61,35 +64,31 @@ ENTRY(_setjmp)
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REG_S s9, JB_S9(a0) /* save callee saved register */
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REG_S s10, JB_S10(a0) /* save callee saved register */
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REG_S s11, JB_S11(a0) /* save callee saved register */
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REG_S sp, JB_SP(a0) /* save stack pointer */
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REG_S tp, JB_TP(a0) /* save thread pointer */
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REG_S gp, JB_GP(a0) /* save global pointer */
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#ifndef _SOFT_FLOAT
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frcsr t2 /* get FSCR */
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REG_S t2, JB_FCSR(a0) /* save it */
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fsd fs0, JB_F0(a0) /* save callee saved register */
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fsd fs1, JB_F1(a0) /* save callee saved register */
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fsd fs2, JB_F2(a0) /* save callee saved register */
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fsd fs3, JB_F3(a0) /* save callee saved register */
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fsd fs4, JB_F4(a0) /* save callee saved register */
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fsd fs5, JB_F5(a0) /* save callee saved register */
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fsd fs6, JB_F6(a0) /* save callee saved register */
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fsd fs7, JB_F7(a0) /* save callee saved register */
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fsd fs8, JB_F8(a0) /* save callee saved register */
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fsd fs9, JB_F9(a0) /* save callee saved register */
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fsd fs10, JB_F10(a0) /* save callee saved register */
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fsd fs11, JB_F11(a0) /* save callee saved register */
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fsd fs12, JB_F12(a0) /* save callee saved register */
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fsd fs13, JB_F13(a0) /* save callee saved register */
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fsd fs14, JB_F14(a0) /* save callee saved register */
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fsd fs15, JB_F15(a0) /* save callee saved register */
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fsd fs0, JB_FS0(a0) /* save callee saved register */
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fsd fs1, JB_FS1(a0) /* save callee saved register */
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fsd fs2, JB_FS2(a0) /* save callee saved register */
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fsd fs3, JB_FS3(a0) /* save callee saved register */
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fsd fs4, JB_FS4(a0) /* save callee saved register */
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fsd fs5, JB_FS5(a0) /* save callee saved register */
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fsd fs6, JB_FS6(a0) /* save callee saved register */
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fsd fs7, JB_FS7(a0) /* save callee saved register */
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fsd fs8, JB_FS8(a0) /* save callee saved register */
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fsd fs9, JB_FS9(a0) /* save callee saved register */
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fsd fs10, JB_FS10(a0) /* save callee saved register */
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fsd fs11, JB_FS11(a0) /* save callee saved register */
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#endif
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li x1, 0 /* indicate success */
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li a0, 0 /* indicate success */
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ret /* return */
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END(_setjmp)
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ENTRY(_longjmp)
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REG_L ra, JB_RA(a0) /* save return address */
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REG_L sp, JB_SP(a0) /* save stack pointer */
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REG_L gp, JB_GP(a0) /* save global pointer */
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#REG_L tp, JB_TP(a0) /* save thread pointer */
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REG_L s0, JB_S0(a0) /* save callee saved register */
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REG_L s1, JB_S1(a0) /* save callee saved register */
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REG_L s2, JB_S2(a0) /* save callee saved register */
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@ -102,31 +101,24 @@ ENTRY(_longjmp)
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REG_L s9, JB_S9(a0) /* save callee saved register */
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REG_L s10, JB_S10(a0) /* save callee saved register */
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REG_L s11, JB_S11(a0) /* save callee saved register */
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REG_L sp, JB_SP(a0) /* save stack pointer */
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#REG_L tp, JB_TP(a0) /* save thread pointer */
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REG_L gp, JB_GP(a0) /* save global pointer */
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#ifndef _SOFT_FLOAT
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REG_L t2, JB_FCSR(a0) /* get it */
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fscsr t2 /* restore FSCR */
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fld fs0, JB_F0(a0) /* restore callee saved register */
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fld fs1, JB_F1(a0) /* restore callee saved register */
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fld fs2, JB_F2(a0) /* restore callee saved register */
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fld fs3, JB_F3(a0) /* restore callee saved register */
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fld fs4, JB_F4(a0) /* restore callee saved register */
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fld fs5, JB_F5(a0) /* restore callee saved register */
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fld fs6, JB_F6(a0) /* restore callee saved register */
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fld fs7, JB_F7(a0) /* restore callee saved register */
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fld fs8, JB_F8(a0) /* restore callee saved register */
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fld fs9, JB_F9(a0) /* restore callee saved register */
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fld fs10, JB_F10(a0) /* restore callee saved register */
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fld fs11, JB_F11(a0) /* restore callee saved register */
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fld fs12, JB_F12(a0) /* restore callee saved register */
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fld fs13, JB_F13(a0) /* restore callee saved register */
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fld fs14, JB_F14(a0) /* restore callee saved register */
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fld fs15, JB_F15(a0) /* restore callee saved register */
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fld fs0, JB_FS0(a0) /* restore callee saved register */
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fld fs1, JB_FS1(a0) /* restore callee saved register */
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fld fs2, JB_FS2(a0) /* restore callee saved register */
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fld fs3, JB_FS3(a0) /* restore callee saved register */
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fld fs4, JB_FS4(a0) /* restore callee saved register */
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fld fs5, JB_FS5(a0) /* restore callee saved register */
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fld fs6, JB_FS6(a0) /* restore callee saved register */
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fld fs7, JB_FS7(a0) /* restore callee saved register */
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fld fs8, JB_FS8(a0) /* restore callee saved register */
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fld fs9, JB_FS9(a0) /* restore callee saved register */
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fld fs10, JB_FS10(a0) /* restore callee saved register */
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fld fs11, JB_FS11(a0) /* restore callee saved register */
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#endif
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li v0, 1 /* default return value */
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li a0, 1 /* default return value */
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beqz a1, 1f /* test return value */
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move v0, a1 /* use it if not 0 */
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move a0, a1 /* use it if not 0 */
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1: ret
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END(_longjmp)
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@ -1,4 +1,4 @@
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/* $NetBSD: swapcontext.S,v 1.1 2014/09/19 17:36:25 matt Exp $ */
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/* $NetBSD: swapcontext.S,v 1.2 2015/03/27 06:44:28 matt Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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@ -32,7 +32,7 @@
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#include "SYS.h"
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#include "assym.h"
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__RCSID("$NetBSD: swapcontext.S,v 1.1 2014/09/19 17:36:25 matt Exp $")
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__RCSID("$NetBSD: swapcontext.S,v 1.2 2015/03/27 06:44:28 matt Exp $")
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#define CALLFRAME_UCP CALLFRAME_S1
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#define CALLFRAME_OUCP CALLFRAME_S0
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@ -44,13 +44,14 @@ ENTRY(swapcontext)
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REG_S a1, CALLFRAME_UCP(sp) # save ucp
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call PLT(_C_LABEL(_getcontext)) # getcontext(oucp)
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mv t0, a0 # save return value
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REG_L ra, CALLFRAME_RA(sp) # restore return address
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REG_L a0, CALLFRAME_UCP(sp) # load ucp
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REG_L a1, CALLFRAME_OUCP(sp) # load oucp for adjustment
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addi sp, sp, CALLFRAME_SIZ # restore stack
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bnez v0, 1f # error? yes, cleanup
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bnez t0, 1f # error? yes, cleanup
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REG_S ra, UC_GREGS_PC(a1) # pc <- ra
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REG_S sp, UC_GREGS_SP(a1) # adjust sp
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@ -1,4 +1,4 @@
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/* $NetBSD: __clone.S,v 1.1 2014/09/19 17:36:25 matt Exp $ */
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/* $NetBSD: __clone.S,v 1.2 2015/03/27 06:44:28 matt Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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@ -34,7 +34,7 @@
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#include "SYS.h"
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#if defined(SYSLIBC_SCCS) && !defined(lint)
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RCSID("$NetBSD: __clone.S,v 1.1 2014/09/19 17:36:25 matt Exp $");
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RCSID("$NetBSD: __clone.S,v 1.2 2015/03/27 06:44:28 matt Exp $");
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#endif /* SYSLIBC_SCCS and not lint */
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#ifdef WEAK_ALIAS
|
||||
|
|
@ -48,8 +48,9 @@ ENTRY(__clone)
|
|||
/*
|
||||
* Sanity checks: func and stack may not be NULL.
|
||||
*/
|
||||
li v0, EINVAL
|
||||
beqz a0, 8f
|
||||
mv t0, a0 /* we need a0 for return value */
|
||||
li a0, EINVAL
|
||||
beqz t0, 8f
|
||||
beqz a1, 8f
|
||||
|
||||
/*
|
||||
|
|
@ -58,7 +59,7 @@ ENTRY(__clone)
|
|||
* do this: the child's stack.
|
||||
*/
|
||||
addi a1, a1, -CALLFRAME_SIZ
|
||||
REG_S a0, 0(a1)
|
||||
REG_S t0, 0(a1)
|
||||
REG_S a3, SZREG(a1)
|
||||
|
||||
/*
|
||||
|
|
@ -66,9 +67,9 @@ ENTRY(__clone)
|
|||
*/
|
||||
mv a0, a2
|
||||
SYSTRAP(__clone)
|
||||
# v1 (rv[1]) == 0, parent, child pid in v0
|
||||
# a1 (rv[1]) == 0, parent, child pid in a0
|
||||
8: JUMP_TO_CERROR() /* error */
|
||||
bnez v1, 9f /* success */
|
||||
bnez a1, 9f /* success */
|
||||
ret # parent return
|
||||
|
||||
/* NOTREACHED */
|
||||
|
|
@ -82,16 +83,15 @@ ENTRY(__clone)
|
|||
* highest is unused. a1 should equal sp now.
|
||||
*/
|
||||
|
||||
REG_L v1, 0(sp)
|
||||
REG_L t0, 0(sp)
|
||||
REG_L a0, SZREG(sp)
|
||||
|
||||
REG_S zero, CALLFRAME_RA(sp) /* make sure stack frame ends */
|
||||
|
||||
/* Call the clone's entry point. */
|
||||
jalr v1
|
||||
jalr t0
|
||||
|
||||
/* Pass the return value to _exit. */
|
||||
mv a0, v0
|
||||
jump _C_LABEL(_exit)
|
||||
|
||||
/* NOTREACHED */
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: __sigtramp2.S,v 1.1 2014/09/19 17:36:25 matt Exp $ */
|
||||
/* $NetBSD: __sigtramp2.S,v 1.2 2015/03/27 06:44:28 matt Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2002 The NetBSD Foundation, Inc.
|
||||
|
|
@ -33,7 +33,7 @@
|
|||
#include "assym.h"
|
||||
|
||||
#if defined(SYSLIBC_SCCS) && !defined(lint)
|
||||
RCSID("$NetBSD: __sigtramp2.S,v 1.1 2014/09/19 17:36:25 matt Exp $")
|
||||
RCSID("$NetBSD: __sigtramp2.S,v 1.2 2015/03/27 06:44:28 matt Exp $")
|
||||
#endif /* SYSLIBC_SCCS and not lint */
|
||||
|
||||
|
||||
|
|
@ -50,6 +50,5 @@ ENTRY_NP(__sigtramp_siginfo_2)
|
|||
addi a0, sp, SIGINFO_SIZE /* address of ucontext */
|
||||
SYSTRAP(setcontext) /* and do setcontext */
|
||||
nop
|
||||
move a0, v0 /* exit with errno */
|
||||
SYSTRAP(exit) /* if sigreturn fails */
|
||||
END(__sigtramp_siginfo_2)
|
||||
|
|
|
|||
|
|
@ -1,9 +1,9 @@
|
|||
/* $NetBSD: __syscall.S,v 1.1 2014/09/19 17:36:25 matt Exp $ */
|
||||
/* $NetBSD: __syscall.S,v 1.2 2015/03/27 06:44:28 matt Exp $ */
|
||||
|
||||
#include "SYS.h"
|
||||
|
||||
ENTRY(__syscall)
|
||||
mv v0, a0
|
||||
mv t6, a0
|
||||
mv a0, a1
|
||||
mv a1, a2
|
||||
mv a2, a3
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: __vfork14.S,v 1.1 2014/09/19 17:36:25 matt Exp $ */
|
||||
/* $NetBSD: __vfork14.S,v 1.2 2015/03/27 06:44:28 matt Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1991, 1993
|
||||
|
|
@ -38,21 +38,21 @@
|
|||
#if 0
|
||||
RCSID("from: @(#)Ovfork.s 8.1 (Berkeley) 6/4/93")
|
||||
#else
|
||||
RCSID("$NetBSD: __vfork14.S,v 1.1 2014/09/19 17:36:25 matt Exp $")
|
||||
RCSID("$NetBSD: __vfork14.S,v 1.2 2015/03/27 06:44:28 matt Exp $")
|
||||
#endif
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
/*
|
||||
* pid = vfork();
|
||||
*
|
||||
* v1 == 0 in parent process, v1 == 1 in child process.
|
||||
* v0 == pid of child in parent, v0 == pid of parent in child.
|
||||
* a1 == 0 in parent process, a1 == 1 in child process.
|
||||
* a0 == pid of child in parent, a0 == pid of parent in child.
|
||||
*/
|
||||
|
||||
ENTRY(__vfork14)
|
||||
SYSTRAP(__vfork14)
|
||||
JUMP_TO_CERROR() /* error */
|
||||
addi v1, v1, -1 /* success */
|
||||
and v0, v0, v1
|
||||
addi a1, a1, -1 /* success */
|
||||
and a0, a0, a1
|
||||
ret
|
||||
END(__vfork14)
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: brk.S,v 1.1 2014/09/19 17:36:25 matt Exp $ */
|
||||
/* $NetBSD: brk.S,v 1.2 2015/03/27 06:44:28 matt Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2014 The NetBSD Foundation, Inc.
|
||||
|
|
@ -32,7 +32,7 @@
|
|||
#include "SYS.h"
|
||||
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
RCSID("$NetBSD: brk.S,v 1.1 2014/09/19 17:36:25 matt Exp $")
|
||||
RCSID("$NetBSD: brk.S,v 1.2 2015/03/27 06:44:28 matt Exp $")
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
.hidden _C_LABEL(__minbrk)
|
||||
|
|
@ -57,13 +57,13 @@ _C_LABEL(__curbrk):
|
|||
ENTRY(_brk)
|
||||
auipc t1, %pcrel_hi(_C_LABEL(__minbrk))
|
||||
addi t1, t1, %pcrel_lo(_C_LABEL(__minbrk))
|
||||
PTR_L v0, 0(t1)
|
||||
bgeu a0, v0, 1f
|
||||
move a0, v0 # dont allow break < minbrk
|
||||
PTR_L t5, 0(t1)
|
||||
bgeu a0, t5, 1f
|
||||
move a0, t5 # dont allow break < minbrk
|
||||
1:
|
||||
SYSTRAP(break)
|
||||
JUMP_TO_CERROR() /* error */
|
||||
PTR_S a0, __SIZEOF_POINTER__(t1) /* success */
|
||||
move v0, zero
|
||||
move a0, zero
|
||||
ret
|
||||
END(_brk)
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: cerror.S,v 1.1 2014/09/19 17:36:25 matt Exp $ */
|
||||
/* $NetBSD: cerror.S,v 1.2 2015/03/27 06:44:28 matt Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1991, 1993
|
||||
|
|
@ -35,7 +35,7 @@
|
|||
#include "SYS.h"
|
||||
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
RCSID("$NetBSD: cerror.S,v 1.1 2014/09/19 17:36:25 matt Exp $")
|
||||
RCSID("$NetBSD: cerror.S,v 1.2 2015/03/27 06:44:28 matt Exp $")
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
.protected _C_LABEL(__cerror)
|
||||
|
|
@ -45,19 +45,19 @@ ENTRY_NP(__cerror)
|
|||
#ifdef _REENTRANT
|
||||
addi sp, sp, -CALLFRAME_SIZ
|
||||
REG_S ra, CALLFRAME_RA(sp) # save return address
|
||||
sw v0, CALLFRAME_S0(sp) # save errno value
|
||||
INT_S a0, CALLFRAME_S0(sp) # save errno value
|
||||
|
||||
call PLT(_C_LABEL(__errno)) # locate address of errno
|
||||
|
||||
lw t0, CALLFRAME_S0(sp) # retrieve errno value
|
||||
INT_L t0, CALLFRAME_S0(sp) # retrieve errno value
|
||||
REG_L ra, CALLFRAME_RA(sp) # retrieve return address
|
||||
sw t0, 0(v0) # update errno value
|
||||
INT_S t0, 0(a0) # update errno value
|
||||
addi sp, sp, CALLFRAME_SIZ
|
||||
#else
|
||||
aiupc v1, %hi(_C_LABEL(errno))
|
||||
sw v0, %lo(_C_LABEL(errno))(v1)
|
||||
aiupc a1, %hi(_C_LABEL(errno))
|
||||
sw a0, %lo(_C_LABEL(errno))(a1)
|
||||
#endif /* _REENTRANT */
|
||||
li v0, -1
|
||||
li v1, -1
|
||||
li a0, -1
|
||||
li a1, -1
|
||||
ret
|
||||
END(__cerror)
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: fork.S,v 1.1 2014/09/19 17:36:25 matt Exp $ */
|
||||
/* $NetBSD: fork.S,v 1.2 2015/03/27 06:44:28 matt Exp $ */
|
||||
|
||||
|
||||
/*-
|
||||
|
|
@ -32,14 +32,14 @@
|
|||
#include "SYS.h"
|
||||
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
RCSID("$NetBSD: fork.S,v 1.1 2014/09/19 17:36:25 matt Exp $")
|
||||
RCSID("$NetBSD: fork.S,v 1.2 2015/03/27 06:44:28 matt Exp $")
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
ENTRY(__fork)
|
||||
SYSTRAP(fork) // pid = fork()
|
||||
JUMP_TO_CERROR() /* error */
|
||||
/* success */
|
||||
addi v1, v1, -1 // v1 0->0xffffffff in parent, 1->0 in child
|
||||
and v0, v0, v1 // v0 = child pid in parent, 0 in child
|
||||
addi a1, a1, -1 // a1 0->0xffffffff in parent, 1->0 in child
|
||||
and a0, a0, a1 // a0 = child pid in parent, 0 in child
|
||||
ret
|
||||
END(__fork)
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: pipe.S,v 1.1 2014/09/19 17:36:25 matt Exp $ */
|
||||
/* $NetBSD: pipe.S,v 1.2 2015/03/27 06:44:28 matt Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2014 The NetBSD Foundation, Inc.
|
||||
|
|
@ -32,7 +32,7 @@
|
|||
#include "SYS.h"
|
||||
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
RCSID("$NetBSD: pipe.S,v 1.1 2014/09/19 17:36:25 matt Exp $")
|
||||
RCSID("$NetBSD: pipe.S,v 1.2 2015/03/27 06:44:28 matt Exp $")
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
#ifdef WEAK_ALIAS
|
||||
|
|
@ -40,11 +40,12 @@ WEAK_ALIAS(pipe, _pipe)
|
|||
#endif
|
||||
|
||||
ENTRY(_pipe)
|
||||
mv a2, a0 # a0 will be overwritten
|
||||
SYSTRAP(pipe) # pipe(fildes) int fildes[2];
|
||||
JUMP_TO_CERROR() /* error */
|
||||
/* success */
|
||||
sw v0, 0(a0) # store the two file descriptors
|
||||
sw v1, __SIZEOF_INT__(a0)
|
||||
li v0, 0
|
||||
sw a0, 0(a2) # store the two file descriptors
|
||||
sw a1, __SIZEOF_INT__(a2)
|
||||
li a0, 0
|
||||
ret
|
||||
END(_pipe)
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: ptrace.S,v 1.1 2014/09/19 17:36:25 matt Exp $ */
|
||||
/* $NetBSD: ptrace.S,v 1.2 2015/03/27 06:44:28 matt Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1991, 1993
|
||||
|
|
@ -35,7 +35,7 @@
|
|||
#include "SYS.h"
|
||||
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
RCSID("$NetBSD: ptrace.S,v 1.1 2014/09/19 17:36:25 matt Exp $")
|
||||
RCSID("$NetBSD: ptrace.S,v 1.2 2015/03/27 06:44:28 matt Exp $")
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
#define XCALLFRAME_SIZ (8*SZREG)
|
||||
|
|
@ -56,6 +56,8 @@ ENTRY(ptrace)
|
|||
|
||||
call PLT(_C_LABEL(__errno))
|
||||
|
||||
INT_S zero, 0(a0)
|
||||
|
||||
REG_L a3, XCALLFRAME_A3(sp)
|
||||
REG_L a2, XCALLFRAME_A2(sp)
|
||||
REG_L a1, XCALLFRAME_A1(sp)
|
||||
|
|
@ -63,10 +65,9 @@ ENTRY(ptrace)
|
|||
REG_L ra, XCALLFRAME_RA(sp)
|
||||
addi sp, sp, XCALLFRAME_SIZ
|
||||
|
||||
sw zero, 0(v0)
|
||||
#else
|
||||
auipc v0, %hi(_C_LABEL(errno))
|
||||
sw zero, %lo(_C_LABEL(errno))(v0)
|
||||
auipc t0, %hi(_C_LABEL(errno))
|
||||
INT_S zero, %lo(_C_LABEL(errno))(t0)
|
||||
#endif
|
||||
|
||||
SYSTRAP(ptrace)
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: sbrk.S,v 1.1 2014/09/19 17:36:25 matt Exp $ */
|
||||
/* $NetBSD: sbrk.S,v 1.2 2015/03/27 06:44:28 matt Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2014 The NetBSD Foundation, Inc.
|
||||
|
|
@ -46,8 +46,8 @@ ENTRY(_sbrk)
|
|||
add a0, a0, t2 // compute current break
|
||||
SYSTRAP(break)
|
||||
JUMP_TO_CERROR() /* error */
|
||||
move v0, t2 // return old val of curbrk from above
|
||||
PTR_S a0, 0(t1) // save current val of curbrk from above
|
||||
move a0, t2 // return old val of curbrk from above
|
||||
ret
|
||||
1:
|
||||
END(_sbrk)
|
||||
|
|
|
|||
Loading…
Reference in New Issue