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authorjb <jb@FreeBSD.org>1998-01-11 03:30:39 +0000
committerjb <jb@FreeBSD.org>1998-01-11 03:30:39 +0000
commit003a004c3913cb110e71d5dc731fd7cd489ba396 (patch)
tree7f8cbf78c2c4fa1f2ad4931a63049f8bc5d83298
parent5487c4253d19c58bca653baf2c61d21865140649 (diff)
downloadFreeBSD-src-003a004c3913cb110e71d5dc731fd7cd489ba396.zip
FreeBSD-src-003a004c3913cb110e71d5dc731fd7cd489ba396.tar.gz
CSU source for Alpha obtained from NetBSD. The makefile will require
more work when we get a half-way usable libc (which is next).
-rw-r--r--lib/csu/alpha/Makefile41
-rw-r--r--lib/csu/alpha/crt0.c243
-rw-r--r--lib/csu/alpha/crtbegin.c120
-rw-r--r--lib/csu/alpha/crtend.c15
4 files changed, 419 insertions, 0 deletions
diff --git a/lib/csu/alpha/Makefile b/lib/csu/alpha/Makefile
new file mode 100644
index 0000000..7a3291d
--- /dev/null
+++ b/lib/csu/alpha/Makefile
@@ -0,0 +1,41 @@
+# $Id$
+# From: NetBSD: Makefile,v 1.15 1997/10/24 21:18:25 thorpej Exp
+
+CPPFLAGS+= -DLIBC_SCCS -DPIC -DDYNAMIC -DELFSIZE=64
+CPPFLAGS+= -I${.CURDIR}/../../../libexec/ld.elf_so
+COPT+= -fPIC
+
+OBJS= crt0.o gcrt0.o crtbegin.o crtend.o
+
+CLEANFILES+= core a.out
+
+all: ${OBJS}
+
+crt0.o: crt0.c
+ ${CC} -DCRT0 -c ${.CURDIR}/crt0.c -o ${.TARGET}.o
+ @${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+ @rm -f ${.TARGET}.o
+
+gcrt0.o: crt0.c
+ ${CC} -DMCRT0 -c ${.CURDIR}/crt0.c -o ${.TARGET}.o
+ @${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+ @rm -f ${.TARGET}.o
+
+crtbegin.o: crtbegin.c
+ ${CC} -c ${.CURDIR}/crtbegin.c -o ${.TARGET}.o
+ @${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+ @rm -f ${.TARGET}.o
+
+crtend.o: crtend.c
+ ${CC} -c ${.CURDIR}/crtend.c -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
+ rm -f ${DESTDIR}/usr/lib/crtbeginS.o ${DESTDIR}/usr/lib/crtendS.o
+ ln ${DESTDIR}/usr/lib/crtbegin.o ${DESTDIR}/usr/lib/crtbeginS.o
+ ln ${DESTDIR}/usr/lib/crtend.o ${DESTDIR}/usr/lib/crtendS.o
+
+.include <bsd.prog.mk>
diff --git a/lib/csu/alpha/crt0.c b/lib/csu/alpha/crt0.c
new file mode 100644
index 0000000..0e5688e
--- /dev/null
+++ b/lib/csu/alpha/crt0.c
@@ -0,0 +1,243 @@
+/* $Id$ */
+/* From: NetBSD: crt0.c,v 1.11 1997/10/20 20:41:09 thorpej 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 <sys/param.h>
+#include <sys/exec.h>
+#include <sys/syscall.h>
+#include <vm/vm.h>
+
+#include <stdlib.h>
+#ifdef DYNAMIC
+#include <dlfcn.h>
+#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 = "";
+struct ps_strings *__ps_strings = 0;
+
+#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 be weak and undefined (and therefore to show up
+ * as being at address zero, unless something else defines it). That way,
+ * if we happen to be compiling without -static but with without any
+ * shared libs present, things will still work.
+ */
+asm(".weak _DYNAMIC");
+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 __P((char **, void (*cleanup) __P((void)), const Obj_Entry *,
+ struct ps_strings *));
+int main __P((int, char **, char **));
+
+void
+__start(sp, cleanup, obj, ps_strings)
+ char **sp;
+ void (*cleanup) __P((void)); /* from shared loader */
+ const Obj_Entry *obj; /* from shared loader */
+ struct ps_strings *ps_strings;
+{
+ 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++;
+ }
+
+ if (ps_strings != (struct ps_strings *)0 &&
+ ps_strings != (struct ps_strings *)0xbabefacedeadbeef)
+ __ps_strings = ps_strings;
+
+#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));
+}
+
+/*
+ * NOTE: Leave the RCS ID _after_ __start(), in case it gets placed in .text.
+ */
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: crt0.c,v 1.11 1997/10/20 20:41:09 thorpej Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+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)
+ const 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;
+ const 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/crtbegin.c b/lib/csu/alpha/crtbegin.c
new file mode 100644
index 0000000..2a6cac7
--- /dev/null
+++ b/lib/csu/alpha/crtbegin.c
@@ -0,0 +1,120 @@
+/* $Id$ */
+/* From: NetBSD: crtbegin.c,v 1.2 1997/03/21 05:47:28 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 which handles constructors and destructors,
+ * and NetBSD identification.
+ *
+ * The linker constructs the following arrays of pointers to global
+ * constructors and destructors. The first element contains the
+ * number of pointers in each or -1 to indicate that the run-time
+ * code should figure out how many there are. The tables are also
+ * null-terminated.
+ */
+
+#include <sys/param.h>
+#include <sys/exec.h>
+#include <sys/exec_elf.h>
+#include <stdlib.h>
+
+/* #include "sysident.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 0000000..826aa45
--- /dev/null
+++ b/lib/csu/alpha/crtend.c
@@ -0,0 +1,15 @@
+/* $Id$ */
+/* From: NetBSD: crtend.c,v 1.2 1997/10/10 08:45:30 mrg Exp */
+
+#ifndef ECOFF_COMPAT
+
+#include <sys/cdefs.h>
+
+static void (*__CTOR_LIST__[1]) __P((void))
+ __attribute__((__unused__))
+ __attribute__((section(".ctors"))) = { (void *)0 }; /* XXX */
+static void (*__DTOR_LIST__[1]) __P((void))
+ __attribute__((__unused__))
+ __attribute__((section(".dtors"))) = { (void *)0 }; /* XXX */
+
+#endif /* !ECOFF_COMPAT */
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