Just a skeleton for sparc. Builds, but pieces are missing and it doesn't

even get to dl_boot_bind correctly.

6 files changed, 514 insertions, 4 deletions

diff --git a/libexec/ld.so/Makefile b/libexec/ld.so/Makefile
index e0f1c1b1128..bef967ddff5 100644
--- a/libexec/ld.so/Makefile
+++ b/libexec/ld.so/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.15 2002/07/12 20:18:30 drahn Exp $
+#	$OpenBSD: Makefile,v 1.16 2002/07/27 13:19:26 art Exp $
 
 SUBDIR=ldconfig ldd
 VPATH=${.CURDIR}/../../lib/libc/string:${.CURDIR}/../../sys/lib/libsa
@@ -23,6 +23,14 @@ CFLAGS += -fpic -mno-fp-regs
 LIBCSRCDIR=${.CURDIR}/../../lib/libc
 .include "${LIBCSRCDIR}/arch/alpha/Makefile.inc"
 .endif
+.if (${MACHINE_ARCH} == "sparc")
+CFLAGS += -fpic -msoft-float -I${LIBCSRCDIR}/arch/sparc
+AFLAGS = ${CFLAGS}
+LIBCSRCDIR=${.CURDIR}/../../lib/libc
+.include "${LIBCSRCDIR}/arch/sparc/Makefile.inc"
+.PATH: ${LIBCSRCDIR}/arch/sparc/gen/
+SRCS+=umul.S
+.endif
 
 #CFLAGS += -Werror -Wall -Wno-uninitialized
 CFLAGS += -Werror -Wall
diff --git a/libexec/ld.so/loader.c b/libexec/ld.so/loader.c
index a91e7515326..19e347a3238 100644
--- a/libexec/ld.so/loader.c
+++ b/libexec/ld.so/loader.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: loader.c,v 1.41 2002/07/24 04:11:10 deraadt Exp $ */
+/*	$OpenBSD: loader.c,v 1.42 2002/07/27 13:19:26 art Exp $ */
 
 /*
  * Copyright (c) 1998 Per Fogelstrom, Opsycon AB
@@ -347,7 +347,7 @@ _dl_boot_bind(const long sp, long loff, Elf_Dyn *dynamicp, long *dl_data)
 			continue;
 		dl_data[auxstack->au_id] = auxstack->au_v;
 	}
-#ifdef __sparc64__
+#if defined(__sparc64__) || defined(__sparc__)
 	loff = dl_data[AUX_base];
 #endif
 
@@ -359,7 +359,7 @@ _dl_boot_bind(const long sp, long loff, Elf_Dyn *dynamicp, long *dl_data)
 	 * Cache the data for easier access.
 	 */
 
-#if defined(__sparc64__)
+#if defined(__sparc64__) || defined(__sparc__)
 	dynp = (Elf_Dyn *)((long)_DYNAMIC + loff);
 #elif defined(__powerpc__) || defined(__alpha__)
 	dynp = dynamicp;
diff --git a/libexec/ld.so/sparc/archdep.h b/libexec/ld.so/sparc/archdep.h
new file mode 100644
index 00000000000..86850b86605
--- /dev/null
+++ b/libexec/ld.so/sparc/archdep.h
@@ -0,0 +1,72 @@
+/*	$OpenBSD: archdep.h,v 1.1 2002/07/27 13:19:26 art Exp $ */
+
+/*
+ * Copyright (c) 1998 Per Fogelstrom, Opsycon AB
+ *
+ * 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 under OpenBSD by
+ *	Per Fogelstrom, Opsycon AB, Sweden.
+ * 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 _SPARC64_ARCHDEP_H_
+#define _SPARC64_ARCHDEP_H_
+
+#define	DL_MALLOC_ALIGN	8	/* Arch constraint or otherwise */
+
+#define	MACHID	EM_SPARC	/* ELF e_machine ID value checked */
+
+#define	RELTYPE	Elf32_Rela
+#define	RELSIZE	sizeof(Elf32_Rela)
+
+#include <elf_abi.h>
+#include <machine/exec.h>
+#include <machine/reloc.h>
+#include <sys/syscall.h>
+#include "syscall.h"
+#include "util.h"
+
+static inline void *
+_dl_mmap(void *addr, unsigned int len, unsigned int prot,
+	unsigned int flags, int fd, off_t offset)
+{
+	return((void *)_dl__syscall((quad_t)SYS_mmap, addr, len, prot,
+		flags, fd, 0, offset));
+}
+
+static inline void
+RELOC_RELA(Elf_RelA *r, const Elf_Sym *s, Elf_Addr *p, unsigned long v)
+{
+	if (ELF_R_TYPE(r->r_info) == RELOC_RELATIVE) {
+		*p = v + r->r_addend;
+	} else {
+		/* XXX - printf might not work here, but we give it a shot. */
+		_dl_printf("Unknown bootstrap relocation.\n");
+		_dl_exit(6);
+	}
+}
+
+#endif /* _SPARC64_ARCHDEP_H_ */
diff --git a/libexec/ld.so/sparc/ldasm.S b/libexec/ld.so/sparc/ldasm.S
new file mode 100644
index 00000000000..ab194027b6e
--- /dev/null
+++ b/libexec/ld.so/sparc/ldasm.S
@@ -0,0 +1,281 @@
+/*	$OpenBSD: ldasm.S,v 1.1 2002/07/27 13:19:26 art Exp $	*/
+
+/*
+ * Copyright (c) 2001 Jason L. Wright (jason@thought.net)
+ * 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 Jason L. Wright
+ * 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.
+ */
+
+/*-
+ * Copyright (c) 2000 Eduardo Horvath.
+ * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas and Paul Kranenburg.
+ *
+ * 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 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
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION 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 <sys/syscall.h>
+#include <machine/trap.h>
+#include <machine/asm.h>
+
+#define DL_DATA_SIZE	(16*4)
+#define ARGC		(16*4)
+
+	.section	".text"
+	.align	4
+	.global	_dl_start
+	.type	_dl_start,@function
+_dl_start:
+	mov	0, %fp			/* Erect a fence post for ourselves */
+	mov	%g1, %l1		/* save ps_strings */
+	sub	%sp, DL_DATA_SIZE, %sp	/* make room for dl_data */
+	mov	%sp, %o3
+
+	mov	%g0, %o2
+	call	_dl_boot_bind
+	 add	%sp, ARGC+DL_DATA_SIZE, %o0	/* &argc - 8 */
+
+	mov	%l3, %o4
+	ld	[%l0], %l3		! argc = *sp
+	sll	%l3, 3, %l3		! argc *= sizeof(long)
+	add	%l0, 8, %o0		! argv = [sp + argc]
+	add	%l0, 16, %o1		! envp = sp + 16 +
+	add	%o1, %l3, %o1		!	+ argc
+
+	add	%o4, (7*8), %l2
+	ld	[%l2], %o2		! loff = dl_data[AUX_base];
+
+	call	_dl_boot		! _dl_boot(argv,envp,loff,dynp,dl_data)
+	 mov	0, %o3			! dynp = 0
+
+	add	%sp, DL_DATA_SIZE, %sp		! restore stack
+	
+	jmp	%o0
+	 mov	%l1, %g1		! restore ps_strings
+
+
+	.section	".text"
+	.align	4
+	.global	_dl_bind_start
+	.type	_dl_bind_start,@function
+_dl_bind_start:	# (obj, reloff)
+	save	%sp, -96, %sp		/* setup standard stack frame */
+	ld	[%i7 + 8], %o0		/* obj id is in second PLT slot */
+	srl	%g1, 10, %o1		/* offset is in high 22 bits */
+	call	_dl_bind		/* Call _rtld_bind(obj, offset) */
+	 sub	%o1, 12*4, %o1		/* first 4 `pltrel' entries missing! */
+
+	mov	%o0, %g1		/* return value == function address */
+	restore				/* get rid of our context */
+	 jmp	%g1			/* and the jmpslot context, then go. */
+	restore
+
+	.section ".text"
+	.align 4
+	.global _dl_close
+	.type _dl_close,@function
+_dl_close:
+	mov SYS_close | SYSCALL_G2RFLAG, %g1	! call sys_close
+	add %o7, 8, %g2				! just return on success
+	t ST_SYSCALL				! off to wonderland
+	retl
+	 sub %g0, %o0, %o0			! error: result = -errno
+
+
+	.section ".text"
+	.align 4
+	.global _dl_exit
+	.type _dl_exit,@function
+_dl_exit:
+	mov SYS_exit | SYSCALL_G2RFLAG, %g1	! call sys_exit
+	add %o7, 8, %g2				! just return on success
+	t ST_SYSCALL				! off to wonderland
+	retl
+	 sub %g0, %o0, %o0			! error: result = -errno
+
+
+	.section ".text"
+	.align 4
+	.global _dl_issetugid
+	.type _dl_issetugid,@function
+_dl_issetugid:
+	mov SYS_issetugid | SYSCALL_G2RFLAG, %g1
+	add %o7, 8, %g2
+	t ST_SYSCALL
+	retl
+	 sub %g0, %o0, %o0
+
+
+	.section ".text"
+	.align 4
+	.global _dl__syscall
+	.type _dl__syscall,@function
+_dl__syscall:
+	mov SYS___syscall | SYSCALL_G2RFLAG, %g1	! call sys_exit
+	add %o7, 8, %g2				! just return on success
+	t ST_SYSCALL				! off to wonderland
+	retl
+	 sub %g0, %o0, %o0			! error: result = -errno
+
+
+	.section ".text"
+	.align 4
+	.global _dl_munmap
+	.type _dl_munmap,@function
+_dl_munmap:
+	mov SYS_munmap | SYSCALL_G2RFLAG, %g1	! calling sys_mmap
+	add %o7, 8, %g2				! just return on success
+	t ST_SYSCALL				! off to wonderland
+	retl
+	 sub %g0, %o0, %o0			! error: result = -errno
+
+
+	.section ".text"
+	.align 4
+	.global _dl_mprotect
+	.type _dl_mprotect,@function
+_dl_mprotect:
+	mov SYS_mprotect | SYSCALL_G2RFLAG, %g1	! calling sys_mprotect
+	add %o7, 8, %g2				! just return on success
+	t ST_SYSCALL				! off to wonderland
+	retl
+	 sub %g0, %o0, %o0			! error: result = -errno
+
+
+	.section ".text"
+	.align 4
+	.global _dl_open
+	.type _dl_open,@function
+_dl_open:
+	mov SYS_open | SYSCALL_G2RFLAG, %g1	! calling sys_open
+	add %o7, 8, %g2				! just return on success
+	t ST_SYSCALL				! off to wonderland
+	retl
+	 sub %g0, %o0, %o0			! error: result = -errno
+
+
+	.section ".text"
+	.align 4
+	.global _dl_read
+	.type _dl_read,@function
+_dl_read:
+	mov SYS_read | SYSCALL_G2RFLAG, %g1	! calling sys_read
+	add %o7, 8, %g2				! just return on success
+	t ST_SYSCALL				! off to wonderland
+	retl
+	 sub %g0, %o0, %o0			! error: result = -errno
+
+
+	.section ".text"
+	.align 4
+	.global _dl_write
+	.type _dl_write,@function
+_dl_write:
+	mov SYS_write | SYSCALL_G2RFLAG, %g1	! calling sys_write
+	add %o7, 8, %g2				! just return on success
+	t ST_SYSCALL				! off to wonderland
+	retl
+	 sub %g0, %o0, %o0			! error: result = -errno
+
+
+	.section ".text"
+	.align 4
+	.global _dl_stat
+	.type _dl_stat,@function
+_dl_stat:
+	mov SYS_stat | SYSCALL_G2RFLAG, %g1	! call sys_stat
+	add %o7, 8, %g2				! just return on success
+	t ST_SYSCALL				! off to wonderland
+	retl
+	 sub %g0, %o0, %o0			! error: result = -errno
+
+
+	.section ".text"
+	.align 4
+	.globl _dl_fstat
+	.type _dl_fstat,@function
+_dl_fstat:
+	mov  SYS_fstat | SYSCALL_G2RFLAG, %g1	! call sys_fstat
+	add %o7, 8, %g2				! just return on success
+	t ST_SYSCALL				! off to wonderland
+	retl
+	 sub %g0, %o0, %o0                      ! error: result = -errno
+
+
+	.section ".text"
+	.align 4
+	.globl _dl_fcntl
+	.type _dl_fcntl,@function
+_dl_fcntl:
+	mov  SYS_fcntl | SYSCALL_G2RFLAG, %g1	! call sys_fstat
+	add %o7, 8, %g2				! just return on success
+	t ST_SYSCALL				! off to wonderland
+	retl
+	 sub %g0, %o0, %o0                      ! error: result = -errno
+
+
+	.section ".text"
+	.align 4
+	.globl _dl_getdirentries
+	.type _dl_getdirentries,@function
+_dl_getdirentries:
+	mov  SYS_getdirentries | SYSCALL_G2RFLAG, %g1	! call sys_fstat
+	add %o7, 8, %g2					! just return on success
+	t ST_SYSCALL					! off to wonderland
+	retl
+	 sub %g0, %o0, %o0                      ! error: result = -errno
+
diff --git a/libexec/ld.so/sparc/rtld_machine.c b/libexec/ld.so/sparc/rtld_machine.c
new file mode 100644
index 00000000000..546e8c40fe7
--- /dev/null
+++ b/libexec/ld.so/sparc/rtld_machine.c
@@ -0,0 +1,82 @@
+/*	$OpenBSD: rtld_machine.c,v 1.1 2002/07/27 13:19:26 art Exp $ */
+
+/*
+ * Copyright (c) 1999 Dale Rahn
+ * Copyright (c) 2001 Niklas Hallqvist
+ * Copyright (c) 2001 Artur Grabowski
+ *
+ * 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 under OpenBSD by
+ *	Dale Rahn.
+ * 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.
+ */
+
+#define _DYN_LOADER
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+#include <sys/mman.h>
+
+#include <nlist.h>
+#include <link.h>
+
+#include "syscall.h"
+#include "archdep.h"
+#include "resolve.h"
+
+void
+_dl_bcopy(const void *src, void *dest, int size)
+{
+	const unsigned char *psrc = src;
+	unsigned char *pdest = dest;
+	int i;
+
+	for (i = 0; i < size; i++)
+		pdest[i] = psrc[i];
+}
+
+int
+_dl_md_reloc(elf_object_t *object, int rel, int relasz)
+{
+	return (0);
+}
+/*
+ * Resolve a symbol at run-time.
+ */
+void *
+_dl_bind(elf_object_t *object, int index)
+{
+	return (NULL);
+}
+
+void
+_dl_install_plt(Elf_Word *pltgot, Elf_Addr proc)
+{
+}
+
+void
+_dl_md_reloc_got(elf_object_t *object, int lazy)
+{
+}
diff --git a/libexec/ld.so/sparc/syscall.h b/libexec/ld.so/sparc/syscall.h
new file mode 100644
index 00000000000..3d450ad5e99
--- /dev/null
+++ b/libexec/ld.so/sparc/syscall.h
@@ -0,0 +1,67 @@
+/*	$OpenBSD: syscall.h,v 1.1 2002/07/27 13:19:26 art Exp $ */
+
+/*
+ * Copyright (c) 2001 Niklas Hallqvist
+ *
+ * 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 under OpenBSD by
+ *	Niklas Hallqvist.
+ * 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 __DL_SYSCALL_H__
+#define __DL_SYSCALL_H__
+
+#include <sys/syscall.h>
+#include <sys/stat.h>
+
+#ifndef _dl_MAX_ERRNO
+#define _dl_MAX_ERRNO 4096
+#endif
+#define _dl_check_error(__res) \
+    ((int) __res < 0 && (int) __res >= -_dl_MAX_ERRNO)
+
+int	_dl_close(int);
+int	_dl_exit(int);
+int	_dl_issetugid(void);
+long	_dl__syscall(quad_t, ...);
+int	_dl_mprotect(const void *, int, int);
+int	_dl_munmap(const void*, unsigned int);
+int	_dl_open(const char*, unsigned int);
+int	_dl_read(int, const char*, int);
+int	_dl_stat(const char *, struct stat *);
+int	_dl_write(int, const char*, int);
+int	_dl_fstat(int, struct stat *);
+int	_dl_fcntl(int, int, ...);
+int	_dl_getdirentries(int, char*, int, long *);
+
+static inline off_t
+_dl_lseek(int fildes, off_t offset, int whence)
+{
+        return _dl__syscall((quad_t)SYS_lseek, fildes, 0, offset, whence);
+}
+
+#endif /*__DL_SYSCALL_H__*/