Date: Thu, 4 Sep 2014 20:21:31 +0000 (UTC) From: Ed Maste <emaste@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r271129 - stable/10/lib/libstand/powerpc Message-ID: <201409042021.s84KLV7s032298@svn.freebsd.org>
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Author: emaste Date: Thu Sep 4 20:21:30 2014 New Revision: 271129 URL: http://svnweb.freebsd.org/changeset/base/271129 Log: MFC r261591 (nwhitehorn): Make libstand setjmp work for both 64- and 32-bit ABIs. Modified: stable/10/lib/libstand/powerpc/_setjmp.S Directory Properties: stable/10/ (props changed) Modified: stable/10/lib/libstand/powerpc/_setjmp.S ============================================================================== --- stable/10/lib/libstand/powerpc/_setjmp.S Thu Sep 4 20:18:08 2014 (r271128) +++ stable/10/lib/libstand/powerpc/_setjmp.S Thu Sep 4 20:21:30 2014 (r271129) @@ -1,36 +1,115 @@ -/* $NetBSD: _setjmp.S,v 1.1 1997/03/29 20:55:53 thorpej Exp $ */ +/* $FreeBSD$ */ +/* from: NetBSD: setjmp.S,v 1.1 1998/01/27 15:13:12 sakamoto Exp $ */ +/* from: OpenBSD: setjmp.S,v 1.2 1996/12/28 06:22:18 rahnds Exp */ +/* kernel version of this file, does not have signal goop */ +/* int setjmp(jmp_buf env) */ #include <machine/asm.h> -#if (defined(LIBC_SCCS) || defined(LIBC_RCS)) && !defined(lint) - .text - .asciz "$FreeBSD$" +#ifdef __powerpc64__ +#define LD_REG ld +#define ST_REG std +#define REGWIDTH 8 +#else +#define LD_REG lwz +#define ST_REG stw +#define REGWIDTH 4 #endif -/* - * C library -- _setjmp, _longjmp - * - * _longjmp(a,v) - * will generate a "return(v?v:1)" from the last call to - * _setjmp(a) - * by restoring registers from the stack. - * The previous signal state is NOT restored. - */ - -ENTRY(_setjmp) - mflr 11 - mfcr 12 - mr 10,1 - mr 9,2 - stmw 9,8(3) - li 3,0 +#define JMP_r1 1*REGWIDTH +#define JMP_r2 2*REGWIDTH +#define JMP_r14 3*REGWIDTH +#define JMP_r15 4*REGWIDTH +#define JMP_r16 5*REGWIDTH +#define JMP_r17 6*REGWIDTH +#define JMP_r18 7*REGWIDTH +#define JMP_r19 8*REGWIDTH +#define JMP_r20 9*REGWIDTH +#define JMP_r21 10*REGWIDTH +#define JMP_r22 11*REGWIDTH +#define JMP_r23 12*REGWIDTH +#define JMP_r24 13*REGWIDTH +#define JMP_r25 14*REGWIDTH +#define JMP_r26 15*REGWIDTH +#define JMP_r27 16*REGWIDTH +#define JMP_r28 17*REGWIDTH +#define JMP_r29 18*REGWIDTH +#define JMP_r30 19*REGWIDTH +#define JMP_r31 20*REGWIDTH +#define JMP_lr 21*REGWIDTH +#define JMP_cr 22*REGWIDTH +#define JMP_ctr 23*REGWIDTH +#define JMP_xer 24*REGWIDTH +#define JMP_sig 25*REGWIDTH + +ASENTRY_NOPROF(setjmp) + ST_REG 31, JMP_r31(3) + /* r1, r2, r14-r30 */ + ST_REG 1, JMP_r1 (3) + ST_REG 2, JMP_r2 (3) + ST_REG 14, JMP_r14(3) + ST_REG 15, JMP_r15(3) + ST_REG 16, JMP_r16(3) + ST_REG 17, JMP_r17(3) + ST_REG 18, JMP_r18(3) + ST_REG 19, JMP_r19(3) + ST_REG 20, JMP_r20(3) + ST_REG 21, JMP_r21(3) + ST_REG 22, JMP_r22(3) + ST_REG 23, JMP_r23(3) + ST_REG 24, JMP_r24(3) + ST_REG 25, JMP_r25(3) + ST_REG 26, JMP_r26(3) + ST_REG 27, JMP_r27(3) + ST_REG 28, JMP_r28(3) + ST_REG 29, JMP_r29(3) + ST_REG 30, JMP_r30(3) + /* cr, lr, ctr, xer */ + mfcr 0 + ST_REG 0, JMP_cr(3) + mflr 0 + ST_REG 0, JMP_lr(3) + mfctr 0 + ST_REG 0, JMP_ctr(3) + mfxer 0 + ST_REG 0, JMP_xer(3) + /* f14-f31, fpscr */ + li 3, 0 blr -ENTRY(_longjmp) - lmw 9,8(3) - mtlr 11 - mtcr 12 - mr 2,9 - mr 1,10 - mr 3,4 + +.extern sigsetmask +ASENTRY_NOPROF(longjmp) + LD_REG 31, JMP_r31(3) + /* r1, r2, r14-r30 */ + LD_REG 1, JMP_r1 (3) + LD_REG 2, JMP_r2 (3) + LD_REG 14, JMP_r14(3) + LD_REG 15, JMP_r15(3) + LD_REG 16, JMP_r16(3) + LD_REG 17, JMP_r17(3) + LD_REG 18, JMP_r18(3) + LD_REG 19, JMP_r19(3) + LD_REG 20, JMP_r20(3) + LD_REG 21, JMP_r21(3) + LD_REG 22, JMP_r22(3) + LD_REG 23, JMP_r23(3) + LD_REG 24, JMP_r24(3) + LD_REG 25, JMP_r25(3) + LD_REG 26, JMP_r26(3) + LD_REG 27, JMP_r27(3) + LD_REG 28, JMP_r28(3) + LD_REG 29, JMP_r29(3) + LD_REG 30, JMP_r30(3) + /* cr, lr, ctr, xer */ + LD_REG 0, JMP_cr(3) + mtcr 0 + LD_REG 0, JMP_lr(3) + mtlr 0 + LD_REG 0, JMP_ctr(3) + mtctr 0 + LD_REG 0, JMP_xer(3) + mtxer 0 + /* f14-f31, fpscr */ + mr 3, 4 blr
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