diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/csu/alpha/Makefile | 52 | ||||
| -rw-r--r-- | lib/csu/alpha/crt0.c | 220 | ||||
| -rw-r--r-- | lib/csu/alpha/crt0.s | 100 | ||||
| -rw-r--r-- | lib/csu/alpha/crtbegin.c | 112 | ||||
| -rw-r--r-- | lib/csu/alpha/crtend.c | 13 |
5 files changed, 382 insertions, 115 deletions
diff --git a/lib/csu/alpha/Makefile b/lib/csu/alpha/Makefile index b960baf9bf7..b9844de3215 100644 --- a/lib/csu/alpha/Makefile +++ b/lib/csu/alpha/Makefile @@ -1,25 +1,47 @@ -# $NetBSD: Makefile,v 1.3 1995/12/20 12:36:56 cgd Exp $ +# $OpenBSD: Makefile,v 1.4 1996/11/13 21:23:13 niklas Exp $ +# $NetBSD: Makefile,v 1.6 1996/10/18 05:27:38 thorpej Exp $ + +.include <bsd.own.mk> # for ELF_TOOLCHAIN definition + +CFLAGS+= -DLIBC_SCCS -DPIC -DDYNAMIC -DELFSIZE=64 +CFLAGS+= -I${.CURDIR}/../../../libexec/elf_rtld/include + +.if !defined(ELF_TOOLCHAIN) +CFLAGS+= -DECOFF_COMPAT +.endif + +OBJS= crt0.o gcrt0.o crtbegin.o crtend.o -CFLAGS+= -DLIBC_SCCS -OBJS= crt0.o gcrt0.o CLEANFILES+= core a.out all: ${OBJS} -crt0.o: crt0.s - ${CPP} -DCRT0 ${CFLAGS:M-[ID]*} ${.ALLSRC} | ${AS} -o $@ - @${LD} -x -r ${.TARGET} - @mv a.out ${.TARGET} +crt0.o: crt0.c + @echo ${CC} ${CFLAGS} -DCRT0 -c ${.ALLSRC} -o ${.TARGET} + @${CC} ${CFLAGS} -DCRT0 -c ${.ALLSRC} -o ${.TARGET}.o + @${LD} -x -r -o ${.TARGET} ${.TARGET}.o + @rm -f ${.TARGET}.o -gcrt0.o: crt0.s - ${CPP} -DMCRT0 ${CFLAGS:M-[ID]*} ${.ALLSRC} | ${AS} -o $@ - @${LD} -x -r ${.TARGET} - @mv a.out ${.TARGET} +gcrt0.o: crt0.c + @echo ${CC} ${CFLAGS} -DMCRT0 -c ${.ALLSRC} -o ${.TARGET} + @${CC} ${CFLAGS} -DMCRT0 -c ${.ALLSRC} -o ${.TARGET}.o + @${LD} -x -r -o ${.TARGET} ${.TARGET}.o + @rm -f ${.TARGET}.o -install: - install ${COPY} -o ${BINOWN} -g ${BINGRP} -m 444 ${OBJS} \ - ${DESTDIR}/usr/lib +crtbegin.o: crtbegin.c + @echo ${CC} ${CFLAGS} -c ${.ALLSRC} -o ${.TARGET} + @${CC} ${CFLAGS} -c ${.ALLSRC} -o ${.TARGET}.o + @${LD} -x -r -o ${.TARGET} ${.TARGET}.o + @rm -f ${.TARGET}.o + +crtend.o: crtend.c + @echo ${CC} ${CFLAGS} -c ${.ALLSRC} -o ${.TARGET} + @${CC} ${CFLAGS} -c ${.ALLSRC} -o ${.TARGET}.o + @${LD} -x -r -o ${.TARGET} ${.TARGET}.o + @rm -f ${.TARGET}.o -depend lint tags: +install: + ${INSTALL} ${COPY} -o ${BINOWN} -g ${BINGRP} -m 444 ${OBJS} \ + ${DESTDIR}/usr/lib .include <bsd.prog.mk> diff --git a/lib/csu/alpha/crt0.c b/lib/csu/alpha/crt0.c new file mode 100644 index 00000000000..dcc280046bd --- /dev/null +++ b/lib/csu/alpha/crt0.c @@ -0,0 +1,220 @@ +/* $NetBSD: crt0.c,v 1.1 1996/09/12 16:59:02 cgd Exp $ */ + +/* + * Copyright (c) 1995 Christopher G. Demetriou + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Christopher G. Demetriou + * for the NetBSD Project. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. + */ + +#ifdef ECOFF_COMPAT +#undef DYNAMIC +#endif + +#include <stdlib.h> +#include <sys/syscall.h> +#ifdef DYNAMIC +#include "rtld.h" +#else +typedef void Obj_Entry; +#endif + +/* + * Lots of the chunks of this file cobbled together from pieces of + * other NetBSD crt files, including the common code. + */ + +extern int __syscall __P((int, ...)); +#define _exit(v) __syscall(SYS_exit, (v)) +#define write(fd, s, n) __syscall(SYS_write, (fd), (s), (n)) + +#define _FATAL(str) \ + do { \ + write(2, str, sizeof(str)); \ + _exit(1); \ + } while (0) + +static char *_strrchr __P((char *, char)); + + +char **environ; +char *__progname = ""; + +#ifndef ECOFF_COMPAT +extern void __init __P((void)); +extern void __fini __P((void)); +#endif /* ECOFF_COMPAT */ + +#ifdef DYNAMIC +void rtld_setup __P((void (*)(void), const Obj_Entry *obj)); + +const Obj_Entry *mainprog_obj; + +/* + * Arrange for _DYNAMIC to exist weakly at address zero. That way, + * if we happen to be compiling without -static but with without any + * shared libs present, things will still work. + */ +asm(".weak _DYNAMIC; _DYNAMIC = 0"); +extern int _DYNAMIC; +#endif /* DYNAMIC */ + +#ifdef MCRT0 +extern void monstartup __P((u_long, u_long)); +extern void _mcleanup __P((void)); +extern unsigned char _etext, _eprol; +#endif /* MCRT0 */ + +void +__start(sp, cleanup, obj) + char **sp; + void (*cleanup) __P((void)); /* from shared loader */ + const Obj_Entry *obj; /* from shared loader */ +{ + long argc; + char **argv, *namep; + + argc = *(long *)sp; + argv = sp + 1; + environ = sp + 2 + argc; /* 2: argc + NULL ending argv */ + + if ((namep = argv[0]) != NULL) { /* NULL ptr if argc = 0 */ + if ((__progname = _strrchr(namep, '/')) == NULL) + __progname = namep; + else + __progname++; + } + +#ifdef DYNAMIC + if (&_DYNAMIC != NULL) + rtld_setup(cleanup, obj); +#endif + +#ifdef MCRT0 + atexit(_mcleanup); + monstartup((u_long)&_eprol, (u_long)&_etext); +#endif + +#ifndef ECOFF_COMPAT + atexit(__fini); + __init(); +#endif /* ECOFF_COMPAT */ + + exit(main(argc, argv, environ)); +} + + +static char * +_strrchr(p, ch) +register char *p, ch; +{ + register char *save; + + for (save = NULL;; ++p) { + if (*p == ch) + save = (char *)p; + if (!*p) + return(save); + } +/* NOTREACHED */ +} + +#ifdef MCRT0 +asm (" .text"); +asm ("_eprol:"); +#endif + +#ifdef DYNAMIC +void +rtld_setup(cleanup, obj) + void (*cleanup) __P((void)); + const Obj_Entry *obj; +{ + + if ((obj == NULL) || (obj->magic != RTLD_MAGIC)) + _FATAL("Corrupt Obj_Entry pointer in GOT"); + if (obj->version != RTLD_VERSION) + _FATAL("Dynamic linker version mismatch"); + + mainprog_obj = obj; + atexit(cleanup); +} + +void * +dlopen(name, mode) + char *name; + int mode; +{ + + if (mainprog_obj == NULL) + return NULL; + return (mainprog_obj->dlopen)(name, mode); +} + +int +dlclose(fd) + void *fd; +{ + + if (mainprog_obj == NULL) + return -1; + return (mainprog_obj->dlclose)(fd); +} + +void * +dlsym(fd, name) + void *fd; + char *name; +{ + + if (mainprog_obj == NULL) + return NULL; + return (mainprog_obj->dlsym)(fd, name); +} + +#if 0 /* not supported for ELF shlibs, apparently */ +int +dlctl(fd, cmd, arg) + void *fd, *arg; + int cmd; +{ + + if (mainprog_obj == NULL) + return -1; + return (mainprog_obj->dlctl)(fd, cmd, arg); +} +#endif + +char * +dlerror() +{ + + if (mainprog_obj == NULL) + return NULL; + return (mainprog_obj->dlerror)(); +} +#endif /* DYNAMIC */ diff --git a/lib/csu/alpha/crt0.s b/lib/csu/alpha/crt0.s deleted file mode 100644 index 8528a3c827d..00000000000 --- a/lib/csu/alpha/crt0.s +++ /dev/null @@ -1,100 +0,0 @@ -/* $NetBSD: crt0.s,v 1.5 1996/05/16 21:56:22 cgd Exp $ */ - -/* - * Copyright (c) 1994, 1995 Carnegie-Mellon University. - * All rights reserved. - * - * Author: Chris G. Demetriou - * - * Permission to use, copy, modify and distribute this software and - * its documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation. - * - * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" - * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND - * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * Carnegie Mellon requests users of this software to return to - * - * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU - * School of Computer Science - * Carnegie Mellon University - * Pittsburgh PA 15213-3890 - * - * any improvements or extensions that they make and grant Carnegie the - * rights to redistribute these changes. - */ - -#include <machine/asm.h> - -/* - * Set up the global variables provided by crt0: - * environ and __progname - */ -BSS(environ, 8) - .data - .align 3 -EXPORT(__progname) - .quad $L1 -$L1: - .quad 0 /* Null string, plus padding. */ - .text - -LEAF(__start, 0) /* XXX */ - .set noreorder - br pv, 1f -1: SETGP(pv) - - ldq s0, 0(sp) /* get argc from stack */ - lda s1, 8(sp) /* get pointer to argv */ - s8addq s0, s1, s2 /* add number of argv pointers */ - addq s2, 8, s2 /* and skip the null pointer */ - stq s2, environ /* save the newly-found env pointer */ - -#ifdef MCRT0 -eprol: - lda a0, eprol - lda a1, etext - CALL(monstartup) /* monstartup(eprol, etext); */ - lda a0, _mcleanup - CALL(atexit) /* atext(_mcleanup); */ - stl zero, errno -#endif - - ldq a0, 0(s1) /* a0 = argv[0]; */ - beq a0, 2f /* if it's null, then punt */ - CONST(0x2f, a1) /* a1 = '/' */ - CALL(strrchr) - addq v0, 1, a0 /* move past the /, if there was one */ - bne v0, 1f /* if a / found */ - ldq a0, 0(s1) /* a0 = argv[0]; */ -1: - stq a0, __progname /* store the program name */ -2: - /* call main() */ -__callmain: - mov s0, a0 - mov s1, a1 - mov s2, a2 - CALL(main) /* v0 = main(argc, argv, env); */ - - /* on return from main, call exit() with its return value. */ - mov v0, a0 - CALL(exit) /* exit(rv); */ - - /* if that failed, bug out. */ - call_pal 0x81 /* XXX op_bugchk */ - .set reorder -END(__start) - -#ifndef MCRT0 -LEAF(moncontrol, 0) - RET -END(moncontrol) - -LEAF(_mcount, 0) - ret zero, (at_reg), 1 -END(_mcount) -#endif diff --git a/lib/csu/alpha/crtbegin.c b/lib/csu/alpha/crtbegin.c new file mode 100644 index 00000000000..2ea2897f8b8 --- /dev/null +++ b/lib/csu/alpha/crtbegin.c @@ -0,0 +1,112 @@ +/* $OpenBSD: crtbegin.c,v 1.1 1996/11/13 21:28:03 niklas Exp $ */ +/* $NetBSD: crtbegin.c,v 1.1 1996/09/12 16:59:03 cgd Exp $ */ + +/* + * Copyright (c) 1993 Paul Kranenburg + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Paul Kranenburg. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. + */ + +#ifndef ECOFF_COMPAT + +/* + * XXX EVENTUALLY SHOULD BE MERGED BACK WITH c++rt0.c + */ + +/* + * Run-time module for GNU C++ compiled shared libraries. + * + * The linker constructs the following arrays of pointers to global + * constructors and destructors. The first element contains the + * number of pointers in each. + * The tables are also null-terminated. + */ +#include <stdlib.h> + +static void (*__CTOR_LIST__[1]) __P((void)) + __attribute__((section(".ctors"))) = { (void *)-1 }; /* XXX */ +static void (*__DTOR_LIST__[1]) __P((void)) + __attribute__((section(".dtors"))) = { (void *)-1 }; /* XXX */ + +static void __dtors __P((void)); +static void __ctors __P((void)); + +static void +__dtors() +{ + unsigned long i = (unsigned long) __DTOR_LIST__[0]; + void (**p)(void); + + if (i == -1) { + for (i = 1; __DTOR_LIST__[i] != NULL; i++) + ; + i--; + } + p = __DTOR_LIST__ + i; + while (i--) + (**p--)(); +} + +static void +__ctors() +{ + void (**p)(void) = __CTOR_LIST__ + 1; + + while (*p) + (**p++)(); +} + +extern void __init(void) __attribute__((section(".init"))); + +void +__init() +{ + static int initialized = 0; + + /* + * Call global constructors. + * Arrange to call global destructors at exit. + */ + if (!initialized) { + initialized = 1; + __ctors(); + } + +} + +extern void __fini(void) __attribute__((section(".fini"))); + +void +__fini() +{ + /* + * Call global destructors. + */ + __dtors(); +} + +#endif /* !ECOFF_COMPAT */ diff --git a/lib/csu/alpha/crtend.c b/lib/csu/alpha/crtend.c new file mode 100644 index 00000000000..6e446b76a6b --- /dev/null +++ b/lib/csu/alpha/crtend.c @@ -0,0 +1,13 @@ +/* $OpenBSD: crtend.c,v 1.1 1996/11/13 21:28:04 niklas Exp $ */ +/* $NetBSD: crtend.c,v 1.1 1996/09/12 16:59:04 cgd Exp $ */ + +#ifndef ECOFF_COMPAT + +#include <sys/cdefs.h> + +static void (*__CTOR_LIST__[1]) __P((void)) + __attribute__((section(".ctors"))) = { (void *)0 }; /* XXX */ +static void (*__DTOR_LIST__[1]) __P((void)) + __attribute__((section(".dtors"))) = { (void *)0 }; /* XXX */ + +#endif /* !ECOFF_COMPAT */ |