Date: Sun, 6 Jan 2008 15:43:48 GMT From: Oleksandr Tymoshenko <gonzo@FreeBSD.org> To: Perforce Change Reviews <perforce@FreeBSD.org> Subject: PERFORCE change 132626 for review Message-ID: <200801061543.m06FhmW3087647@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=132626 Change 132626 by gonzo@gonzo_jeeves on 2008/01/06 15:43:20 o Bring in assembler bits from juniper-mips branch Affected files ... .. //depot/projects/mips2-jnpr/src/lib/libc/mips/gen/_setjmp.S#2 edit .. //depot/projects/mips2-jnpr/src/lib/libc/mips/gen/fabs.S#2 edit .. //depot/projects/mips2-jnpr/src/lib/libc/mips/gen/ldexp.S#2 edit .. //depot/projects/mips2-jnpr/src/lib/libc/mips/gen/makecontext.c#2 edit .. //depot/projects/mips2-jnpr/src/lib/libc/mips/gen/modf.S#2 edit .. //depot/projects/mips2-jnpr/src/lib/libc/mips/gen/setjmp.S#2 edit .. //depot/projects/mips2-jnpr/src/lib/libc/mips/gen/sigsetjmp.S#2 edit Differences ... ==== //depot/projects/mips2-jnpr/src/lib/libc/mips/gen/_setjmp.S#2 (text+ko) ==== @@ -1,5 +1,3 @@ -/* $NetBSD: _setjmp.S,v 1.20 2005/10/07 17:16:40 tsutsui Exp $ */ - /*- * Copyright (c) 1991, 1993 * The Regents of the University of California. All rights reserved. @@ -15,7 +13,7 @@ * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors + * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * @@ -35,14 +33,22 @@ #include <machine/regnum.h> #include <machine/asm.h> -#if defined(LIBC_SCCS) && !defined(lint) - ASMSTR("from: @(#)_setjmp.s 8.1 (Berkeley) 6/4/93") - ASMSTR("$NetBSD: _setjmp.S,v 1.20 2005/10/07 17:16:40 tsutsui Exp $") -#endif /* LIBC_SCCS and not lint */ +#if defined(LIBC_SCCS) + .text + //.asciz "$OpenBSD: _setjmp.S,v 1.5 1996/08/19 08:15:51 tholo Exp $" + .asciz "$FreeBSD$" +#endif /* LIBC_SCCS */ + +/* These defs must be consistent with ucontext_t. We really ought to employ + * something like genassym here, but... + */ -#ifdef __ABICALLS__ - .abicalls -#endif +#define UC_SIGMASK 0x00 /* offsetof(ucontext_t, uc_sigmask) */ +#define UC_ONSTACK 0x10 /* offsetof(ucontext_t, uc_mcontext.mc_onstack) */ +#define UC_PC 0x14 /* offsetof(ucontext_t, uc_mcontext.mc_pc) */ +#define UC_REGS 0x18 /* offsetof(ucontext_t, uc_mcontext.mc_regs) */ +#define UC_FPUSED 0xa0 /* offsetof(ucontext_t, uc_mcontext.mc_fpused) */ +#define UC_FPREGS 0xa4 /* offsetof(ucontext_t, uc_mcontext.mc_fpregs) */ /* * C library -- _setjmp, _longjmp @@ -55,55 +61,81 @@ * The previous signal state is NOT restored. */ - LEAF(_setjmp) -#ifdef __ABICALLS__ .set noreorder - .cpload t9 - .cprestore 16 -#endif - li v0, _JB_MAGIC__SETJMP - sw v0, (_JB_MAGIC * SZREG)(a0) - sw ra, (_JB_REG_RA * SZREG)(a0) - sw s0, (_JB_REG_S0 * SZREG)(a0) - sw s1, (_JB_REG_S1 * SZREG)(a0) - sw s2, (_JB_REG_S2 * SZREG)(a0) - sw s3, (_JB_REG_S3 * SZREG)(a0) - sw s4, (_JB_REG_S4 * SZREG)(a0) - sw s5, (_JB_REG_S5 * SZREG)(a0) - sw s6, (_JB_REG_S6 * SZREG)(a0) - sw s7, (_JB_REG_S7 * SZREG)(a0) - sw sp, (_JB_REG_SP * SZREG)(a0) - sw s8, (_JB_REG_S8 * SZREG)(a0) - + li v0, 0xACEDBADE # sigcontext magic number + sw ra, UC_PC(a0) # sc_pc = return address + sw v0, (ZERO * 4) + UC_REGS (a0) # saved in sc_regs[0] + sw s0, (S0 * 4) + UC_REGS (a0) + sw s1, (S1 * 4) + UC_REGS (a0) + sw s2, (S2 * 4) + UC_REGS (a0) + sw s3, (S3 * 4) + UC_REGS (a0) + sw s4, (S4 * 4) + UC_REGS (a0) + sw s5, (S5 * 4) + UC_REGS (a0) + sw s6, (S6 * 4) + UC_REGS (a0) + sw s7, (S7 * 4) + UC_REGS (a0) + sw s8, (S8 * 4) + UC_REGS (a0) + sw sp, (SP * 4) + UC_REGS (a0) +#ifndef SOFTFLOAT + cfc1 v0, $31 # too bad cant check if FP used + swc1 $f20, (F20_NUM * 4) + UC_FPREGS (a0) + swc1 $f21, (F21_NUM * 4) + UC_FPREGS (a0) + swc1 $f22, (F22_NUM * 4) + UC_FPREGS (a0) + swc1 $f23, (F23_NUM * 4) + UC_FPREGS (a0) + swc1 $f24, (F24_NUM * 4) + UC_FPREGS (a0) + swc1 $f25, (F25_NUM * 4) + UC_FPREGS (a0) + swc1 $f26, (F26_NUM * 4) + UC_FPREGS (a0) + swc1 $f27, (F27_NUM * 4) + UC_FPREGS (a0) + swc1 $f28, (F28_NUM * 4) + UC_FPREGS (a0) + swc1 $f29, (F29_NUM * 4) + UC_FPREGS (a0) + swc1 $f30, (F30_NUM * 4) + UC_FPREGS (a0) + swc1 $f31, (F31_NUM * 4) + UC_FPREGS (a0) + sw v0, (FSR_NUM * 4) + UC_FPREGS (a0) +#endif /*SOFTFLOAT */ j ra move v0, zero END(_setjmp) LEAF(_longjmp) -#ifdef __ABICALLS__ - .set noreorder - .cpload t9 +#ifdef ABICALLS + subu sp, sp, 32 .cprestore 16 -#endif - lw v0, (_JB_MAGIC * SZREG)(a0) - lw ra, (_JB_REG_RA * SZREG)(a0) - li t0, _JB_MAGIC__SETJMP - bne v0, t0, botch # jump if error - lw s0, (_JB_REG_S0 * SZREG)(a0) - lw s1, (_JB_REG_S1 * SZREG)(a0) - lw s2, (_JB_REG_S2 * SZREG)(a0) - lw s3, (_JB_REG_S3 * SZREG)(a0) - lw s4, (_JB_REG_S4 * SZREG)(a0) - lw s5, (_JB_REG_S5 * SZREG)(a0) - lw s6, (_JB_REG_S6 * SZREG)(a0) - lw s7, (_JB_REG_S7 * SZREG)(a0) - lw sp, (_JB_REG_SP * SZREG)(a0) - lw s8, (_JB_REG_S8 * SZREG)(a0) +#endif + .set noreorder + lw v0, (ZERO * 4) + UC_REGS (a0) # get magic number + lw ra, UC_PC (a0) + bne v0, 0xACEDBADE, botch # jump if error + + addu sp, sp, 32 # does not matter, sanity + lw s0, (S0 * 4) + UC_REGS (a0) + lw s1, (S1 * 4) + UC_REGS (a0) + lw s2, (S2 * 4) + UC_REGS (a0) + lw s3, (S3 * 4) + UC_REGS (a0) + lw s4, (S4 * 4) + UC_REGS (a0) + lw s5, (S5 * 4) + UC_REGS (a0) + lw s6, (S6 * 4) + UC_REGS (a0) + lw s7, (S7 * 4) + UC_REGS (a0) + lw v0, (FSR_NUM * 4) + UC_FPREGS (a0) # get fpu status + lw sp, (SP * 4) + UC_REGS (a0) + lw s8, (S8 * 4) + UC_REGS (a0) +#ifndef SOFTFLOAT + ctc1 v0, $31 + lwc1 $f20, (F20_NUM * 4) + UC_FPREGS (a0) + lwc1 $f21, (F21_NUM * 4) + UC_FPREGS (a0) + lwc1 $f22, (F22_NUM * 4) + UC_FPREGS (a0) + lwc1 $f23, (F23_NUM * 4) + UC_FPREGS (a0) + lwc1 $f24, (F24_NUM * 4) + UC_FPREGS (a0) + lwc1 $f25, (F25_NUM * 4) + UC_FPREGS (a0) + lwc1 $f26, (F26_NUM * 4) + UC_FPREGS (a0) + lwc1 $f27, (F27_NUM * 4) + UC_FPREGS (a0) + lwc1 $f28, (F28_NUM * 4) + UC_FPREGS (a0) + lwc1 $f29, (F29_NUM * 4) + UC_FPREGS (a0) + lwc1 $f30, (F30_NUM * 4) + UC_FPREGS (a0) + lwc1 $f31, (F31_NUM * 4) + UC_FPREGS (a0) +#endif /* SOFTFLOAT */ j ra move v0, a1 - botch: jal _C_LABEL(longjmperror) nop ==== //depot/projects/mips2-jnpr/src/lib/libc/mips/gen/fabs.S#2 (text+ko) ==== @@ -1,5 +1,3 @@ -/* $NetBSD: fabs.S,v 1.7 2003/08/07 16:42:15 agc Exp $ */ - /*- * Copyright (c) 1993 * The Regents of the University of California. All rights reserved. @@ -15,7 +13,7 @@ * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors + * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * @@ -34,17 +32,11 @@ #include <machine/asm.h> -#if defined(LIBC_SCCS) && !defined(lint) - ASMSTR("from: @(#)fabs.s 8.1 (Berkeley) 2/16/94") - ASMSTR("$NetBSD: fabs.S,v 1.7 2003/08/07 16:42:15 agc Exp $") -#endif /* LIBC_SCCS and not lint */ - +#if defined(LIBC_SCCS) + .text + .asciz "$FreeBSD$" +#endif /* LIBC_SCCS */ -#ifdef __ABICALLS__ - .abicalls -#endif - .set noreorder - /* * fabs(x) * double x; @@ -52,6 +44,7 @@ * Return absolute value of x. */ LEAF(fabs) + .set noreorder j ra abs.d $f0, $f12 # compute absolute value of x END(fabs) ==== //depot/projects/mips2-jnpr/src/lib/libc/mips/gen/ldexp.S#2 (text+ko) ==== @@ -1,5 +1,3 @@ -/* $NetBSD: ldexp.S,v 1.8 2003/08/07 16:42:15 agc Exp $ */ - /*- * Copyright (c) 1991, 1993 * The Regents of the University of California. All rights reserved. @@ -15,7 +13,7 @@ * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors + * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * @@ -34,22 +32,18 @@ #include <machine/asm.h> -#if defined(LIBC_SCCS) && !defined(lint) - ASMSTR("from: @(#)ldexp.s 8.1 (Berkeley) 6/4/93") - ASMSTR("$NetBSD: ldexp.S,v 1.8 2003/08/07 16:42:15 agc Exp $") -#endif /* LIBC_SCCS and not lint */ +#if defined(LIBC_SCCS) + .text + .asciz "$FreeBSD$" +#endif /* LIBC_SCCS */ -#ifdef __ABICALLS__ - .abicalls -#endif - #define DEXP_INF 0x7ff #define DEXP_BIAS 1023 #define DEXP_MIN -1022 #define DEXP_MAX 1023 #define DFRAC_BITS 52 #define DIMPL_ONE 0x00100000 -#define DLEAD_ZEROS 31 - 20 +#define DLEAD_ZEROS (31 - 20) #define STICKYBIT 1 #define GUARDBIT 0x80000000 #define DSIGNAL_NAN 0x00040000 @@ -63,6 +57,7 @@ * Return x * (2**N), for integer values N. */ LEAF(ldexp) + .set reorder mfc1 v1, $f13 # get MSW of x mfc1 t3, $f12 # get LSW of x sll t1, v1, 1 # get x exponent @@ -93,28 +88,28 @@ move v0, t3 addu t9, 32 1: - srl ta0, v0, 16 - bne ta0, zero, 1f + srl t4, v0, 16 + bne t4, zero, 1f addu t9, 16 sll v0, 16 1: - srl ta0, v0, 24 - bne ta0, zero, 1f + srl t4, v0, 24 + bne t4, zero, 1f addu t9, 8 sll v0, 8 1: - srl ta0, v0, 28 - bne ta0, zero, 1f + srl t4, v0, 28 + bne t4, zero, 1f addu t9, 4 sll v0, 4 1: - srl ta0, v0, 30 - bne ta0, zero, 1f + srl t4, v0, 30 + bne t4, zero, 1f addu t9, 2 sll v0, 2 1: - srl ta0, v0, 31 - bne ta0, zero, 1f + srl t4, v0, 31 + bne t4, zero, 1f addu t9, 1 /* * Now shift t2,t3 the correct number of bits. @@ -133,8 +128,8 @@ 1: subu v0, v0, t9 # shift fraction left < 32 bits sll t2, t2, t9 - srl ta0, t3, v0 - or t2, t2, ta0 + srl t4, t3, v0 + or t2, t2, t4 sll t3, t3, t9 2: bge t1, DEXP_INF, 8f # overflow? @@ -157,17 +152,17 @@ blt t1, -30, 2f # will all bits in t3 be shifted out? srl t2, t2, 31 - 20 # shift fraction back to normal position subu t1, t1, 1 - sll ta0, t2, t1 # shift right t2,t3 based on exponent + sll t4, t2, t1 # shift right t2,t3 based on exponent srl t8, t3, t1 # save bits shifted out negu t1 srl t3, t3, t1 - or t3, t3, ta0 + or t3, t3, t4 srl t2, t2, t1 bge t8, zero, 1f # does result need to be rounded? addu t3, t3, 1 # round result - sltu ta0, t3, 1 + sltu t4, t3, 1 sll t8, t8, 1 - addu t2, t2, ta0 + addu t2, t2, t4 bne t8, zero, 1f # round result to nearest and t3, t3, ~1 1: @@ -185,9 +180,9 @@ srl t3, t2, t1 bge t8, zero, 1f # does result need to be rounded? addu t3, t3, 1 # round result - sltu ta0, t3, 1 + sltu t4, t3, 1 sll t8, t8, 1 - mtc1 ta0, $f1 # exponent and upper fraction + mtc1 t4, $f1 # exponent and upper fraction bne t8, zero, 1f # round result to nearest and t3, t3, ~1 1: @@ -205,7 +200,7 @@ j ra 8: li t1, 0x7ff00000 # result is infinity (MSW) - mtc1 t1, $f1 + mtc1 t1, $f1 mtc1 zero, $f0 # result is infinity (LSW) bge v1, zero, 1f # should result be negative infinity? neg.d $f0, $f0 # result is negative infinity ==== //depot/projects/mips2-jnpr/src/lib/libc/mips/gen/makecontext.c#2 (text+ko) ==== @@ -41,10 +41,8 @@ __RCSID("$NetBSD: makecontext.c,v 1.3 2003/01/19 08:53:36 matt Exp $"); #endif -#include <inttypes.h> -#include <stddef.h> +#include <sys/types.h> #include <ucontext.h> - #include <stdarg.h> void ==== //depot/projects/mips2-jnpr/src/lib/libc/mips/gen/modf.S#2 (text+ko) ==== @@ -1,5 +1,3 @@ -/* $NetBSD: modf.S,v 1.10 2003/08/07 16:42:15 agc Exp $ */ - /*- * Copyright (c) 1991, 1993, 1995 * The Regents of the University of California. All rights reserved. @@ -15,7 +13,7 @@ * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors + * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * @@ -34,14 +32,10 @@ #include <machine/asm.h> -#if defined(LIBC_SCCS) && !defined(lint) - ASMSTR("from: @(#)modf.s 8.1 (Berkeley) 6/4/93") - ASMSTR("$NetBSD: modf.S,v 1.10 2003/08/07 16:42:15 agc Exp $") -#endif /* LIBC_SCCS and not lint */ - -#ifdef __ABICALLS__ - .abicalls -#endif +#if defined(LIBC_SCCS) + .text + .asciz "$FreeBSD$" +#endif /* LIBC_SCCS */ /* * double modf(val, iptr) @@ -49,11 +43,7 @@ * returns: xxx and n (in *iptr) where val == n.xxx */ LEAF(modf) -#ifdef __ABICALLS__ - .set noreorder - .cpload t9 .set reorder -#endif cfc1 t0, $31 # get the control register li.d $f2, 4503599627370496e0 # f2 <- 2^52 @@ -63,17 +53,17 @@ mov.d $f0, $f12 # f0 <- f12 abs.d $f4, $f12 # f4 <- |f12| - c.olt.d $f4, $f2 # f4 ? < f2 - bc1f 1f # leave f0 alone if Nan, infinity + c.olt.d $f4, $f2 # f4 ? < f2 + bc1f 1f # leave f0 alone if Nan, infinity # or >=2^52 c.eq.d $f12,$f4 # was f12 positive ? add.d $f4,$f2,$f4 # round off to integer bc1f 2f # No -> will have to negate result sub.d $f0,$f4,$f2 # Remove fudge factor j 1f # integer fraction got -2: +2: sub.d $f0,$f2,$f4 # Remove fudge factor and negate -1: +1: ctc1 t0, $31 # restore old rounding mode s.d $f0, 0(a2) # save the integer part sub.d $f0, $f12, $f0 # subtract val - integer part ==== //depot/projects/mips2-jnpr/src/lib/libc/mips/gen/setjmp.S#2 (text+ko) ==== @@ -1,5 +1,3 @@ -/* $NetBSD: setjmp.S,v 1.17 2005/09/17 11:49:39 tsutsui Exp $ */ - /*- * Copyright (c) 1991, 1993 * The Regents of the University of California. All rights reserved. @@ -15,7 +13,11 @@ * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * @@ -32,17 +34,26 @@ * SUCH DAMAGE. */ +#include <sys/syscall.h> +#include <machine/asm.h> #include <machine/regnum.h> -#include <machine/asm.h> + +#if defined(LIBC_SCCS) + .text + //.asciz "$OpenBSD: setjmp.S,v 1.6 1997/07/23 20:55:25 kstailey Exp $" + .asciz "$FreeBSD$" +#endif /* LIBC_SCCS */ -#if defined(LIBC_SCCS) && !defined(lint) - ASMSTR("from: @(#)setjmp.s 8.1 (Berkeley) 6/4/93") - ASMSTR("$NetBSD: setjmp.S,v 1.17 2005/09/17 11:49:39 tsutsui Exp $") -#endif /* LIBC_SCCS and not lint */ +/* These defs must be consistent with ucontext_t. We really ought to employ + * something like genassym here, but... + */ -#ifdef __ABICALLS__ - .abicalls -#endif +#define UC_SIGMASK 0x00 /* offsetof(ucontext_t, uc_sigmask) */ +#define UC_ONSTACK 0x10 /* offsetof(ucontext_t, uc_mcontext.mc_onstack) */ +#define UC_PC 0x14 /* offsetof(ucontext_t, uc_mcontext.mc_pc) */ +#define UC_REGS 0x18 /* offsetof(ucontext_t, uc_mcontext.mc_regs) */ +#define UC_FPUSED 0xa0 /* offsetof(ucontext_t, uc_mcontext.mc_fpused) */ +#define UC_FPREGS 0xa4 /* offsetof(ucontext_t, uc_mcontext.mc_fpregs) */ /* * C library -- setjmp, longjmp @@ -55,105 +66,82 @@ * and a struct sigcontext, see <signal.h> */ -#define SETJMP_FRAME_SIZE (CALLFRAME_SIZ + SZREG) +#define SETJMP_FRAME_SIZE (STAND_FRAME_SIZE + 12) - -NESTED(setjmp, SETJMP_FRAME_SIZE, ra) - .mask 0x80000000, (CALLFRAME_RA - CALLFRAME_SIZ) - .set noreorder -#ifdef __ABICALLS__ - .cpload t9 -#endif +NON_LEAF(setjmp, SETJMP_FRAME_SIZE, ra) + .mask 0x80000000, (STAND_RA_OFFSET - STAND_FRAME_SIZE) subu sp, sp, SETJMP_FRAME_SIZE # allocate stack frame -#ifdef __ABICALLS__ +#ifdef ABICALLS .cprestore 16 #endif - sw ra, CALLFRAME_RA(sp) # save RA - sw a0, CALLFRAME_SIZ(sp) # store env + .set reorder + sw ra, STAND_RA_OFFSET(sp) # save state + sw a0, SETJMP_FRAME_SIZE(sp) + + move a1, zero # Make new sigset_t NULL + la a2, UC_SIGMASK(a0) # Get address of ucontext_t->uc_sigmask + jal _C_LABEL(sigprocmask) # Save the old signal mask + + move a0, zero + addu a1, sp, STAND_FRAME_SIZE # pointer to struct sigaltstack + jal _C_LABEL(sigaltstack) - /* Get the signal mask. */ - addu a2, a0, _JB_SIGMASK * SZREG # &oenv - li a0, 1 # SIG_SETBLOCK - move a1, zero # &env == 0 - la t9, _C_LABEL(sigprocmask) # get current signal mask - jal t9 - nop + lw a0, SETJMP_FRAME_SIZE(sp) # restore jmpbuf + lw v1, STAND_FRAME_SIZE+8(sp) # struct sigaltstack->ss_flags + and v1, v1, 1 # extract SS_ONSTACK + sw v1, UC_ONSTACK(a0) # save it in ucontext_t->uc_mcontext.mc_onstack - lw a0, CALLFRAME_SIZ(sp) # restore env pointer - lw ra, CALLFRAME_RA(sp) # restore RA - addu sp, sp, SETJMP_FRAME_SIZE # pop stack frame + lw ra, STAND_RA_OFFSET(sp) # Restore return address + addu sp, sp, SETJMP_FRAME_SIZE # Restore old stack pointer (eeeew...) - li v0, _JB_MAGIC_SETJMP - sw v0, (_JB_MAGIC * SZREG)(a0) - sw ra, (_JB_REG_RA * SZREG)(a0) - sw s0, (_JB_REG_S0 * SZREG)(a0) - sw s1, (_JB_REG_S1 * SZREG)(a0) - sw s2, (_JB_REG_S2 * SZREG)(a0) - sw s3, (_JB_REG_S3 * SZREG)(a0) - sw s4, (_JB_REG_S4 * SZREG)(a0) - sw s5, (_JB_REG_S5 * SZREG)(a0) - sw s6, (_JB_REG_S6 * SZREG)(a0) - sw s7, (_JB_REG_S7 * SZREG)(a0) - sw sp, (_JB_REG_SP * SZREG)(a0) - sw s8, (_JB_REG_S8 * SZREG)(a0) + blt v0, zero, botch # check for sigstack() error + sw ra, UC_PC(a0) # sc_pc = return address + li v0, 0xACEDBADE # sigcontext magic number + sw v0, (ZERO * 4) + UC_REGS (a0) # saved in sc_regs[0] + sw s0, (S0 * 4) + UC_REGS (a0) + sw s1, (S1 * 4) + UC_REGS (a0) + sw s2, (S2 * 4) + UC_REGS (a0) + sw s3, (S3 * 4) + UC_REGS (a0) + sw s4, (S4 * 4) + UC_REGS (a0) + sw s5, (S5 * 4) + UC_REGS (a0) + sw s6, (S6 * 4) + UC_REGS (a0) + sw s7, (S7 * 4) + UC_REGS (a0) + sw gp, (GP * 4) + UC_REGS (a0) + sw sp, (SP * 4) + UC_REGS (a0) + sw s8, (S8 * 4) + UC_REGS (a0) + li v0, 1 # be nice if we could tell + sw v0, UC_FPUSED (a0) # sc_fpused = 1 +#ifndef SOFTFLOAT + cfc1 v0, $31 + swc1 $f20, (F20_NUM * 4) + UC_FPREGS (a0) + swc1 $f21, (F21_NUM * 4) + UC_FPREGS (a0) + swc1 $f22, (F22_NUM * 4) + UC_FPREGS (a0) + swc1 $f23, (F23_NUM * 4) + UC_FPREGS (a0) + swc1 $f24, (F24_NUM * 4) + UC_FPREGS (a0) + swc1 $f25, (F25_NUM * 4) + UC_FPREGS (a0) + swc1 $f26, (F26_NUM * 4) + UC_FPREGS (a0) + swc1 $f27, (F27_NUM * 4) + UC_FPREGS (a0) + swc1 $f28, (F28_NUM * 4) + UC_FPREGS (a0) + swc1 $f29, (F29_NUM * 4) + UC_FPREGS (a0) + swc1 $f30, (F30_NUM * 4) + UC_FPREGS (a0) + swc1 $f31, (F31_NUM * 4) + UC_FPREGS (a0) + sw v0, (FSR_NUM * 4) + UC_FPREGS (a0) +#endif /* SOFTFLOAT */ move v0, zero j ra END(setjmp) -#define LONGJMP_FRAME_SIZE CALLFRAME_RA + SZREG * 2 - -NESTED(longjmp, LONGJMP_FRAME_SIZE, ra) - .mask 0x80000000, (CALLFRAME_RA - CALLFRAME_SIZ) - .set noreorder -#ifdef __ABICALLS__ - .cpload t9 -#endif - subu sp, sp, LONGJMP_FRAME_SIZE # allocate stack frame -#ifdef __ABICALLS__ +LEAF(longjmp) +#ifdef ABICALLS + subu sp, sp, 32 .cprestore 16 #endif - sw ra, CALLFRAME_RA(sp) # save RA - lw v0, (_JB_MAGIC * SZREG)(a0) - li t0, _JB_MAGIC_SETJMP - bne v0, t0, botch # jump if error - nop - - sw a0, CALLFRAME_SIZ(sp) # save env - sw a1, (CALLFRAME_SIZ + SZREG)(sp) # save return value - - # set sigmask - addu a1, a0, _JB_SIGMASK * SZREG # &set - move a2, zero # &oset == NULL - li a0, 3 # SIG_SETMASK - la t9,_C_LABEL(sigprocmask) # set current signal mask - jal t9 - nop - - lw a0, CALLFRAME_SIZ(sp) # restore env - lw a1, (CALLFRAME_SIZ + SZREG)(sp) # restore return value - - lw ra, (_JB_REG_RA * SZREG)(a0) - lw s0, (_JB_REG_S0 * SZREG)(a0) - lw s1, (_JB_REG_S1 * SZREG)(a0) - lw s2, (_JB_REG_S2 * SZREG)(a0) - lw s3, (_JB_REG_S3 * SZREG)(a0) - lw s4, (_JB_REG_S4 * SZREG)(a0) - lw s5, (_JB_REG_S5 * SZREG)(a0) - lw s6, (_JB_REG_S6 * SZREG)(a0) - lw s7, (_JB_REG_S7 * SZREG)(a0) - lw sp, (_JB_REG_SP * SZREG)(a0) - lw s8, (_JB_REG_S8 * SZREG)(a0) - move v0, a1 - j ra - nop - + .set reorder + sw a1, (V0 * 4) + UC_REGS (a0) # save return value in sc_regs[V0] + li v0, SYS_sigreturn + syscall botch: - la t9, _C_LABEL(longjmperror) - jal t9 - nop - - la t9, _C_LABEL(abort) - jal t9 - nop + jal _C_LABEL(longjmperror) + jal _C_LABEL(abort) END(longjmp) ==== //depot/projects/mips2-jnpr/src/lib/libc/mips/gen/sigsetjmp.S#2 (text+ko) ==== @@ -1,5 +1,3 @@ -/* $NetBSD: sigsetjmp.S,v 1.8 2005/09/17 11:49:39 tsutsui Exp $ */ - /*- * Copyright (c) 1991, 1993, 1995, * The Regents of the University of California. All rights reserved. @@ -15,7 +13,7 @@ * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors + * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * @@ -32,17 +30,15 @@ * SUCH DAMAGE. */ +#include <sys/syscall.h> #include <machine/regnum.h> #include <machine/asm.h> +#include <machine/setjmp.h> -#if defined(LIBC_SCCS) && !defined(lint) - ASMSTR("from: @(#)setjmp.s 8.1 (Berkeley) 6/4/93") - ASMSTR("$NetBSD: sigsetjmp.S,v 1.8 2005/09/17 11:49:39 tsutsui Exp $") -#endif /* LIBC_SCCS and not lint */ - -#ifdef __ABICALLS__ - .abicalls -#endif +#if defined(LIBC_SCCS) + .text + .asciz "$FreeBSD$" +#endif /* LIBC_SCCS */ /* * C library -- sigsetjmp, siglongjmp @@ -57,28 +53,20 @@ */ LEAF(sigsetjmp) -#ifdef __ABICALLS__ - .set noreorder - .cpload t9 .set reorder -#endif + sw a1, (_JBLEN*4)(a0) # save "savemask" bne a1, 0x0, 1f # do saving of signal mask? la t9, _setjmp - jr t9 + jr t9 1: la t9, setjmp - jr t9 + jr t9 END(sigsetjmp) LEAF(siglongjmp) -#ifdef __ABICALLS__ - .set noreorder - .cpload t9 .set reorder -#endif - lw t0, (_JB_MAGIC * SZREG)(a0) - li t1, _JB_MAGIC__SETJMP - bne t0, t1, 1f # setjmp or _setjmp magic? + lw t0, (_JBLEN * 4)(a0) # get "savemask" + bne t0, 0x0, 1f # restore signal mask? la t9, _longjmp jr t9 1: la t9, longjmp
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