Author: jchandra Date: Wed Jun 16 14:13:36 2010 New Revision: 209233 URL: http://svn.freebsd.org/changeset/base/209233
Log: Merge jmallett@'s n64 work into HEAD - changeset 2 Update libc Makefiles. Add makecontext implementation. Changes from http://svn.freebsd.org/base/user/jmallett/octeon Approved by: rrs(mentor), jmallett Added: head/lib/libc/mips/gen/_ctx_start.S (contents, props changed) Modified: head/lib/libc/Makefile head/lib/libc/mips/Makefile.inc head/lib/libc/mips/Symbol.map head/lib/libc/mips/gen/Makefile.inc head/lib/libc/mips/gen/makecontext.c head/lib/libc/mips/sys/Makefile.inc Modified: head/lib/libc/Makefile ============================================================================== --- head/lib/libc/Makefile Wed Jun 16 14:10:39 2010 (r209232) +++ head/lib/libc/Makefile Wed Jun 16 14:13:36 2010 (r209233) @@ -51,7 +51,12 @@ NOASM= .include "${.CURDIR}/posix1e/Makefile.inc" .if ${MACHINE_ARCH} != "amd64" && \ ${MACHINE_ARCH} != "ia64" && \ - ${MACHINE_ARCH} != "sparc64" + ${MACHINE_ARCH} != "sparc64" && \ + ${MACHINE_ARCH} != "mips" +.include "${.CURDIR}/quad/Makefile.inc" +.endif +.if ${MACHINE_ARCH} == "mips" && \ + (!defined(TARGET_ABI) || ${TARGET_ABI} == "o32") .include "${.CURDIR}/quad/Makefile.inc" .endif .include "${.CURDIR}/regex/Makefile.inc" Modified: head/lib/libc/mips/Makefile.inc ============================================================================== --- head/lib/libc/mips/Makefile.inc Wed Jun 16 14:10:39 2010 (r209232) +++ head/lib/libc/mips/Makefile.inc Wed Jun 16 14:13:36 2010 (r209233) @@ -1,8 +1,6 @@ # $NetBSD: Makefile.inc,v 1.7 2005/09/17 11:49:39 tsutsui Exp $ # $FreeBSD$ -SOFTFLOAT_BITS=32 - CFLAGS+=-DSOFTFLOAT MDSRCS+= machdep_ldisd.c Modified: head/lib/libc/mips/Symbol.map ============================================================================== --- head/lib/libc/mips/Symbol.map Wed Jun 16 14:10:39 2010 (r209232) +++ head/lib/libc/mips/Symbol.map Wed Jun 16 14:13:36 2010 (r209233) @@ -24,13 +24,9 @@ FBSD_1.0 { sigsetjmp; siglongjmp; htonl; - __htonl; htons; - __htons; ntohl; - __ntohl; ntohs; - __ntohs; vfork; brk; cerror; /* XXX - Should this be .cerror (see sys/cerror.S)? */ Modified: head/lib/libc/mips/gen/Makefile.inc ============================================================================== --- head/lib/libc/mips/gen/Makefile.inc Wed Jun 16 14:10:39 2010 (r209232) +++ head/lib/libc/mips/gen/Makefile.inc Wed Jun 16 14:13:36 2010 (r209233) @@ -6,4 +6,4 @@ SRCS+= infinity.c fabs.c ldexp.c modf.c # SRCS+= flt_rounds.c fpgetmask.c fpgetround.c fpgetsticky.c fpsetmask.c \ # fpsetround.c fpsetsticky.c -SRCS+= _set_tp.c _setjmp.S makecontext.c setjmp.S signalcontext.c sigsetjmp.S +SRCS+= _ctx_start.S _set_tp.c _setjmp.S makecontext.c setjmp.S signalcontext.c sigsetjmp.S Added: head/lib/libc/mips/gen/_ctx_start.S ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/lib/libc/mips/gen/_ctx_start.S Wed Jun 16 14:13:36 2010 (r209233) @@ -0,0 +1,41 @@ +/*- + * Copyright (c) 2010 Juli Mallett. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> +__FBSDID("$FreeBSD$"); + +/* + * XXX gp? + */ +ENTRY(_ctx_start) + jalr t9 + + move a0, s0 + PTR_LA t9, _ctx_done + jalr t9 + + break 0 +END(_ctx_start) Modified: head/lib/libc/mips/gen/makecontext.c ============================================================================== --- head/lib/libc/mips/gen/makecontext.c Wed Jun 16 14:10:39 2010 (r209232) +++ head/lib/libc/mips/gen/makecontext.c Wed Jun 16 14:13:36 2010 (r209233) @@ -1,4 +1,4 @@ -/* $NetBSD: makecontext.c,v 1.3 2003/01/19 08:53:36 matt Exp $ */ +/* $NetBSD: makecontext.c,v 1.5 2009/12/14 01:07:42 matt Exp $ */ /*- * Copyright (c) 2001 The NetBSD Foundation, Inc. @@ -15,13 +15,6 @@ * 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. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the NetBSD - * Foundation, Inc. and its contributors. - * 4. Neither the name of The NetBSD Foundation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED @@ -39,48 +32,92 @@ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #if defined(LIBC_SCCS) && !defined(lint) -__RCSID("$NetBSD: makecontext.c,v 1.3 2003/01/19 08:53:36 matt Exp $"); +__RCSID("$NetBSD: makecontext.c,v 1.5 2009/12/14 01:07:42 matt Exp $"); #endif -#include <sys/types.h> -#include <ucontext.h> +#include <sys/param.h> +#include <machine/regnum.h> + #include <stdarg.h> +#include <stdlib.h> +#include <unistd.h> +#include <stdio.h> +#include <ucontext.h> + +__weak_reference(__makecontext, makecontext); + +void _ctx_done(ucontext_t *); +void _ctx_start(void); void -makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) +__makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) { - /* XXXMIPS: Implement me */ -#if 0 - __greg_t *gr = ucp->uc_mcontext.__gregs; - uintptr_t *sp; + mcontext_t *mc; + register_t *sp; int i; va_list ap; - void __resumecontext(void); + /* + * XXX/juli + * We need an mc_len or mc_flags like other architectures + * so that we can mark a context as invalid. Store it in + * mc->mc_regs[ZERO] perhaps? + */ + if (argc < 0 || argc > 6 || ucp == NULL || + ucp->uc_stack.ss_sp == NULL || + ucp->uc_stack.ss_size < MINSIGSTKSZ) + return; + mc = &ucp->uc_mcontext; - /* LINTED uintptr_t is safe */ - sp = (uintptr_t *) + sp = (register_t *) ((uintptr_t)ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size); - /* LINTED uintptr_t is safe */ +#if defined(__mips_o32) || defined(__mips_o64) sp -= (argc >= 4 ? argc : 4); /* Make room for >=4 arguments. */ - sp = (uintptr_t *) - ((uintptr_t)sp & ~0x7); /* Align on double-word boundary. */ + sp = (register_t *) + ((uintptr_t)sp & ~0x7); /* Align on double-word boundary. */ +#elif defined(__mips_n32) || defined(__mips_n64) + sp -= (argc > 8 ? argc - 8 : 0); /* Make room for > 8 arguments. */ + sp = (register_t *) + ((uintptr_t)sp & ~0xf); /* Align on quad-word boundary. */ +#endif - gr[_REG_SP] = (__greg_t)sp; - gr[_REG_RA] = (__greg_t)__resumecontext; - gr[_REG_T9] = (__greg_t)func; /* required for .abicalls */ - gr[_REG_EPC] = (__greg_t)func; + mc->mc_regs[SP] = (intptr_t)sp; + mc->mc_regs[S0] = (intptr_t)ucp; + mc->mc_regs[T9] = (intptr_t)func; + mc->mc_pc = (intptr_t)_ctx_start; /* Construct argument list. */ va_start(ap, argc); +#if defined(__mips_o32) || defined(__mips_o64) /* Up to the first four arguments are passed in $a0-3. */ for (i = 0; i < argc && i < 4; i++) - /* LINTED uintptr_t is safe */ - gr[_REG_A0 + i] = va_arg(ap, uintptr_t); + /* LINTED register_t is safe */ + mc->mc_regs[A0 + i] = va_arg(ap, register_t); + /* Pass remaining arguments on the stack above the $a0-3 gap. */ + sp += i; +#endif +#if defined(__mips_n32) || defined(__mips_n64) + /* Up to the first 8 arguments are passed in $a0-7. */ + for (i = 0; i < argc && i < 8; i++) + /* LINTED register_t is safe */ + mc->mc_regs[A0 + i] = va_arg(ap, register_t); /* Pass remaining arguments on the stack above the $a0-3 gap. */ - for (sp += 4; i < argc; i++) +#endif + /* Pass remaining arguments on the stack above the $a0-3 gap. */ + for (; i < argc; i++) /* LINTED uintptr_t is safe */ - *sp++ = va_arg(ap, uintptr_t); + *sp++ = va_arg(ap, register_t); va_end(ap); -#endif +} + +void +_ctx_done(ucontext_t *ucp) +{ + + if (ucp->uc_link == NULL) + exit(0); + else { + setcontext((const ucontext_t *)ucp->uc_link); + abort(); + } } Modified: head/lib/libc/mips/sys/Makefile.inc ============================================================================== --- head/lib/libc/mips/sys/Makefile.inc Wed Jun 16 14:10:39 2010 (r209232) +++ head/lib/libc/mips/sys/Makefile.inc Wed Jun 16 14:13:36 2010 (r209233) @@ -1,7 +1,7 @@ # $FreeBSD$ MDASM= Ovfork.S brk.S cerror.S exect.S \ - fork.S pipe.S ptrace.S sbrk.S shmat.S syscall.S + fork.S pipe.S ptrace.S sbrk.S syscall.S # Don't generate default code for these syscalls: NOASM= break.o exit.o ftruncate.o getlogin.o lseek.o mmap.o \ _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
