svn commit: r269994 - projects/arm64/lib/csu/arm64
Andrew Turner
andrew at FreeBSD.org
Thu Aug 14 18:44:10 UTC 2014
Author: andrew
Date: Thu Aug 14 18:44:08 2014
New Revision: 269994
URL: http://svnweb.freebsd.org/changeset/base/269994
Log:
Add minimal csu support. Some bits are broken as they are just loops, but
we are not in userland yet so wait until then to fix them.
Added:
projects/arm64/lib/csu/arm64/crt1.c
projects/arm64/lib/csu/arm64/crti.S
projects/arm64/lib/csu/arm64/crtn.S
Modified:
projects/arm64/lib/csu/arm64/Makefile
Modified: projects/arm64/lib/csu/arm64/Makefile
==============================================================================
--- projects/arm64/lib/csu/arm64/Makefile Thu Aug 14 18:39:13 2014 (r269993)
+++ projects/arm64/lib/csu/arm64/Makefile Thu Aug 14 18:44:08 2014 (r269994)
@@ -2,6 +2,43 @@
.PATH: ${.CURDIR}/../common
-all:
+SRCS= crt1.c crti.S crtn.S
+OBJS= ${SRCS:N*.h:R:S/$/.o/g}
+OBJS+= Scrt1.o gcrt1.o
+CFLAGS+= -I${.CURDIR}/../common \
+ -I${.CURDIR}/../../libc/include
+
+all: ${OBJS}
+
+CLEANFILES= ${OBJS}
+CLEANFILES+= crt1.s gcrt1.s Scrt1.s
+
+# See the comment in lib/csu/common/crtbrand.c for the reason crt1.c is not
+# directly compiled to .o files.
+
+crt1.s: crt1.c
+ ${CC} ${CFLAGS} -S -o ${.TARGET} ${.CURDIR}/crt1.c
+ sed ${SED_FIX_NOTE} ${.TARGET}
+
+crt1.o: crt1.s
+ ${CC} ${ACFLAGS} -c -o ${.TARGET} crt1.s
+
+gcrt1.s: crt1.c
+ ${CC} ${CFLAGS} -DGCRT -S -o ${.TARGET} ${.CURDIR}/crt1.c
+ sed ${SED_FIX_NOTE} ${.TARGET}
+
+gcrt1.o: gcrt1.s
+ ${CC} ${ACFLAGS} -c -o ${.TARGET} gcrt1.s
+
+Scrt1.s: crt1.c
+ ${CC} ${CFLAGS} -fPIC -DPIC -S -o ${.TARGET} ${.CURDIR}/crt1.c
+ sed ${SED_FIX_NOTE} ${.TARGET}
+
+Scrt1.o: Scrt1.s
+ ${CC} ${ACFLAGS} -c -o ${.TARGET} Scrt1.s
+
+realinstall:
+ ${INSTALL} -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
+ ${OBJS} ${DESTDIR}${LIBDIR}
.include <bsd.lib.mk>
Added: projects/arm64/lib/csu/arm64/crt1.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/arm64/lib/csu/arm64/crt1.c Thu Aug 14 18:44:08 2014 (r269994)
@@ -0,0 +1,146 @@
+/* LINTLIBRARY */
+/*-
+ * Copyright 2001 David E. O'Brien.
+ * All rights reserved.
+ * Copyright 1996-1998 John D. Polstra.
+ * All rights reserved.
+ * Copyright (c) 1997 Jason R. Thorpe.
+ * 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 for the
+ * FreeBSD Project. See http://www.freebsd.org/ for
+ * information about FreeBSD.
+ * This product includes software developed for the
+ * NetBSD Project. See http://www.netbsd.org/ for
+ * information about NetBSD.
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#ifndef lint
+#ifndef __GNUC__
+#error "GCC is needed to compile this file"
+#endif
+#endif /* lint */
+
+#include <stdlib.h>
+
+#include "libc_private.h"
+#include "crtbrand.c"
+#include "ignore_init.c"
+
+struct Struct_Obj_Entry;
+struct ps_strings;
+
+extern void _start(int, char **, char **, const struct Struct_Obj_Entry *,
+ void (*)(void), struct ps_strings *);
+
+#ifdef GCRT
+extern void _mcleanup(void);
+extern void monstartup(void *, void *);
+extern int eprol;
+extern int etext;
+#endif
+
+struct ps_strings *__ps_strings;
+
+void __start(int, char **, char **, struct ps_strings *,
+ const struct Struct_Obj_Entry *, void (*)(void));
+
+/* The entry function. */
+__asm(" .text \n"
+" .align 0 \n"
+" .globl _start \n"
+" _start: \n"
+/* TODO: Don't just pass NULL to __start */
+" mov x0, xzr \n"
+" mov x1, xzr \n"
+" mov x2, xzr \n"
+" mov x3, xzr \n"
+" mov x4, xzr \n"
+" mov x5, xzr \n"
+#if 0
+" mov r5, r2 /* cleanup */ \n"
+" mov r4, r1 /* obj_main */ \n"
+" mov r3, r0 /* ps_strings */ \n"
+" /* Get argc, argv, and envp from stack */ \n"
+" ldr r0, [sp, #0x0000] \n"
+" add r1, sp, #0x0004 \n"
+" add r2, r1, r0, lsl #2 \n"
+" add r2, r2, #0x0004 \n"
+" /* Ensure the stack is properly aligned before calling C code. */\n"
+" bic sp, sp, #7 \n"
+" sub sp, sp, #8 \n"
+" str r5, [sp, #4] \n"
+" str r4, [sp, #0] \n"
+"\n"
+#endif
+" b __start ");
+
+/* ARGSUSED */
+void
+__start(int argc, char **argv, char **env, struct ps_strings *ps_strings,
+ const struct Struct_Obj_Entry *obj __unused, void (*cleanup)(void))
+{
+
+ handle_argv(argc, argv, env);
+
+ if (ps_strings != (struct ps_strings *)0)
+ __ps_strings = ps_strings;
+
+ if (&_DYNAMIC != NULL)
+ atexit(cleanup);
+ else
+ _init_tls();
+#ifdef GCRT
+ atexit(_mcleanup);
+ monstartup(&eprol, &etext);
+#endif
+ handle_static_init(argc, argv, env);
+ exit(main(argc, argv, env));
+}
+
+static const struct {
+ int32_t namesz;
+ int32_t descsz;
+ int32_t type;
+ char name[sizeof(NOTE_FREEBSD_VENDOR)];
+ char desc[sizeof(MACHINE_ARCH)];
+} archtag __attribute__ ((section (NOTE_SECTION), aligned(4))) __used = {
+ .namesz = sizeof(NOTE_FREEBSD_VENDOR),
+ .descsz = sizeof(MACHINE_ARCH),
+ .type = ARCH_NOTETYPE,
+ .name = NOTE_FREEBSD_VENDOR,
+ .desc = MACHINE_ARCH
+};
+
+#ifdef GCRT
+__asm__(".text");
+__asm__("eprol:");
+__asm__(".previous");
+#endif
Added: projects/arm64/lib/csu/arm64/crti.S
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/arm64/lib/csu/arm64/crti.S Thu Aug 14 18:44:08 2014 (r269994)
@@ -0,0 +1,42 @@
+/*-
+ * Copyright 2001 David E. O'Brien
+ * 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 ``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.
+ */
+
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+ .section .init,"ax", at progbits
+ .align 4
+ .globl _init
+ .type _init, at function
+_init:
+ 1: b 1b
+
+ .section .fini,"ax", at progbits
+ .align 4
+ .globl _fini
+ .type _fini, at function
+_fini:
+ 1: b 1b
+
Added: projects/arm64/lib/csu/arm64/crtn.S
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/arm64/lib/csu/arm64/crtn.S Thu Aug 14 18:44:08 2014 (r269994)
@@ -0,0 +1,36 @@
+/*-
+ * Copyright 2001 David E. O'Brien
+ * 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 ``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.
+ */
+
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+ .section .init,"ax", at progbits
+ 1: b 1b
+
+
+ .section .fini,"ax", at progbits
+ 1: b 1b
+
+ .section .note.GNU-stack,"",%progbits
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