add new architecture support for or1k

Information about Openrisc:
http://opencores.org/or1k/Main_Page
Integrated from:
https://github.com/openrisc/uClibc-or1k

40 files changed, 2819 insertions, 2 deletions

diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in
index 5166efbf0..a9c01f130 100644
--- a/extra/Configs/Config.in
+++ b/extra/Configs/Config.in
@@ -34,6 +34,7 @@ choice
 	default TARGET_mips if DESIRED_TARGET_ARCH = "mips"
 	default TARGET_nios if DESIRED_TARGET_ARCH = "nios"
 	default TARGET_nios2 if DESIRED_TARGET_ARCH = "nios2"
+	default TARGET_or1k if DESIRED_TARGET_ARCH = "or1k"
 	default TARGET_powerpc if DESIRED_TARGET_ARCH = "powerpc"
 	default TARGET_sh if DESIRED_TARGET_ARCH = "sh"
 	default TARGET_sh64 if DESIRED_TARGET_ARCH = "sh64"
@@ -107,6 +108,9 @@ config TARGET_mips
 config TARGET_nios2
 	bool "nios2"
 
+config TARGET_or1k
+	bool "or1k"
+
 config TARGET_powerpc
 	bool "powerpc"
 
@@ -208,6 +212,10 @@ if TARGET_mips
 source "extra/Configs/Config.mips"
 endif
 
+if TARGET_or1k
+source "extra/Configs/Config.or1k"
+endif
+
 if TARGET_powerpc
 source "extra/Configs/Config.powerpc"
 endif
@@ -474,7 +482,7 @@ config LDSO_NO_CLEANUP
 	  Unless you know you need this, you should answer N.
 
 config UCLIBC_CTOR_DTOR
-	boolean
+	bool
 	default y
 	help
 	  If you wish to build uClibc with support for global constructor
@@ -576,6 +584,7 @@ config UCLIBC_HAS_THREADS_NATIVE
 		   !TARGET_m68k && \
 		   !TARGET_microblaze && \
 		   !TARGET_nios2 && \
+		   !TARGET_or1k && \
 		   !TARGET_vax
 	help
 	  If you want to compile uClibc with NPTL support, then answer Y.
diff --git a/extra/Configs/Config.or1k b/extra/Configs/Config.or1k
new file mode 100644
index 000000000..45e6f0a57
--- /dev/null
+++ b/extra/Configs/Config.or1k
@@ -0,0 +1,35 @@
+#
+# For a description of the syntax of this configuration file,
+# see extra/config/Kconfig-language.txt
+#
+
+config TARGET_ARCH
+	default "or1k"
+
+config ARCH_CFLAGS
+	string
+
+config ARCH_LDFLAGS
+	string
+
+config LIBGCC_CFLAGS
+	string
+
+choice
+	prompt "Target Architecture Type"
+	default CONFIG_OR1K
+	help
+		This is the architecture type of your CPU. This information is used for
+		optimizing purposes.
+
+		These are the possible settings:
+		- or1k  Generic support for OpenCores OpenRISC/or1k architecture.
+
+config CONFIG_OR1K
+	select ARCH_HAS_MMU	
+	select UCLIBC_HAS_FPU
+	select ARCH_BIG_ENDIAN
+        select HAS_NO_THREADS
+	bool "or1k"
+
+endchoice
diff --git a/extra/Configs/defconfigs/or1k/defconfig b/extra/Configs/defconfigs/or1k/defconfig
new file mode 100644
index 000000000..f8b8d2b33
--- /dev/null
+++ b/extra/Configs/defconfigs/or1k/defconfig
@@ -0,0 +1,245 @@
+#
+# Automatically generated make config: don't edit
+# Version: 0.9.34-git
+# Wed Oct 10 16:27:15 2012
+#
+# TARGET_alpha is not set
+# TARGET_arm is not set
+# TARGET_avr32 is not set
+# TARGET_bfin is not set
+# TARGET_c6x is not set
+# TARGET_cris is not set
+# TARGET_e1 is not set
+# TARGET_frv is not set
+# TARGET_h8300 is not set
+# TARGET_hppa is not set
+# TARGET_i386 is not set
+# TARGET_i960 is not set
+# TARGET_ia64 is not set
+# TARGET_m68k is not set
+# TARGET_microblaze is not set
+# TARGET_mips is not set
+# TARGET_nios is not set
+# TARGET_nios2 is not set
+TARGET_or1k=y
+# TARGET_powerpc is not set
+# TARGET_sh is not set
+# TARGET_sh64 is not set
+# TARGET_sparc is not set
+# TARGET_v850 is not set
+# TARGET_vax is not set
+# TARGET_x86_64 is not set
+# TARGET_xtensa is not set
+
+#
+# Target Architecture Features and Options
+#
+TARGET_ARCH="or1k"
+CONFIG_OR1K=y
+TARGET_SUBARCH=""
+
+#
+# Using ELF file format
+#
+ARCH_BIG_ENDIAN=y
+
+#
+# Using Big Endian
+#
+ARCH_HAS_MMU=y
+ARCH_USE_MMU=y
+UCLIBC_HAS_FLOATS=y
+UCLIBC_HAS_FPU=y
+DO_C99_MATH=y
+# DO_XSI_MATH is not set
+# UCLIBC_HAS_FENV is not set
+KERNEL_HEADERS="${SYSROOT}/usr/include"
+HAVE_DOT_CONFIG=y
+
+#
+# General Library Settings
+#
+DOPIC=y
+HAVE_SHARED=y
+# FORCE_SHAREABLE_TEXT_SEGMENTS is not set
+LDSO_LDD_SUPPORT=y
+LDSO_CACHE_SUPPORT=y
+LDSO_PRELOAD_ENV_SUPPORT=y
+# LDSO_PRELOAD_FILE_SUPPORT is not set
+LDSO_BASE_FILENAME="ld.so"
+# LDSO_STANDALONE_SUPPORT is not set
+# LDSO_PRELINK_SUPPORT is not set
+UCLIBC_STATIC_LDCONFIG=y
+LDSO_RUNPATH=y
+LDSO_SEARCH_INTERP_PATH=y
+LDSO_LD_LIBRARY_PATH=y
+# LDSO_NO_CLEANUP is not set
+UCLIBC_CTOR_DTOR=y
+# LDSO_GNU_HASH_SUPPORT is not set
+# HAS_NO_THREADS is not set
+LINUXTHREADS_OLD=y
+# LINUXTHREADS_NEW is not set
+# UCLIBC_HAS_THREADS_NATIVE is not set
+UCLIBC_HAS_THREADS=y
+# PTHREADS_DEBUG_SUPPORT is not set
+UCLIBC_HAS_SYSLOG=y
+UCLIBC_HAS_LFS=y
+# MALLOC is not set
+# MALLOC_SIMPLE is not set
+MALLOC_STANDARD=y
+# MALLOC_GLIBC_COMPAT is not set
+# UCLIBC_DYNAMIC_ATEXIT is not set
+COMPAT_ATEXIT=y
+UCLIBC_SUSV3_LEGACY=y
+# UCLIBC_SUSV3_LEGACY_MACROS is not set
+UCLIBC_SUSV4_LEGACY=y
+# UCLIBC_STRICT_HEADERS is not set
+# UCLIBC_HAS_STUBS is not set
+UCLIBC_HAS_SHADOW=y
+UCLIBC_HAS_PROGRAM_INVOCATION_NAME=y
+UCLIBC_HAS___PROGNAME=y
+UCLIBC_HAS_PTY=y
+ASSUME_DEVPTS=y
+UNIX98PTY_ONLY=y
+# UCLIBC_HAS_GETPT is not set
+# UCLIBC_HAS_LIBUTIL is not set
+UCLIBC_HAS_TM_EXTENSIONS=y
+UCLIBC_HAS_TZ_CACHING=y
+UCLIBC_HAS_TZ_FILE=y
+UCLIBC_HAS_TZ_FILE_READ_MANY=y
+UCLIBC_TZ_FILE_PATH="/etc/TZ"
+UCLIBC_FALLBACK_TO_ETC_LOCALTIME=y
+
+#
+# Advanced Library Settings
+#
+UCLIBC_PWD_BUFFER_SIZE=256
+UCLIBC_GRP_BUFFER_SIZE=256
+
+#
+# Support various families of functions
+#
+UCLIBC_LINUX_MODULE_26=y
+UCLIBC_LINUX_MODULE_24=y
+UCLIBC_LINUX_SPECIFIC=y
+UCLIBC_HAS_GNU_ERROR=y
+UCLIBC_BSD_SPECIFIC=y
+UCLIBC_HAS_BSD_ERR=y
+# UCLIBC_HAS_OBSOLETE_BSD_SIGNAL is not set
+# UCLIBC_HAS_OBSOLETE_SYSV_SIGNAL is not set
+# UCLIBC_NTP_LEGACY is not set
+# UCLIBC_SV4_DEPRECATED is not set
+UCLIBC_HAS_REALTIME=y
+UCLIBC_HAS_ADVANCED_REALTIME=y
+UCLIBC_HAS_EPOLL=y
+UCLIBC_HAS_XATTR=y
+UCLIBC_HAS_PROFILING=y
+UCLIBC_HAS_CRYPT_IMPL=y
+# UCLIBC_HAS_SHA256_CRYPT_IMPL is not set
+# UCLIBC_HAS_SHA512_CRYPT_IMPL is not set
+UCLIBC_HAS_CRYPT=y
+UCLIBC_HAS_NETWORK_SUPPORT=y
+UCLIBC_HAS_SOCKET=y
+UCLIBC_HAS_IPV4=y
+UCLIBC_HAS_IPV6=y
+UCLIBC_HAS_RPC=y
+UCLIBC_HAS_FULL_RPC=y
+UCLIBC_HAS_REENTRANT_RPC=y
+# UCLIBC_USE_NETLINK is not set
+# UCLIBC_HAS_BSD_RES_CLOSE is not set
+UCLIBC_HAS_COMPAT_RES_STATE=y
+# UCLIBC_HAS_EXTRA_COMPAT_RES_STATE is not set
+# UCLIBC_HAS_RESOLVER_SUPPORT is not set
+# UCLIBC_HAS_LIBRESOLV_STUB is not set
+# UCLIBC_HAS_LIBNSL_STUB is not set
+
+#
+# String and Stdio Support
+#
+UCLIBC_HAS_STRING_GENERIC_OPT=y
+UCLIBC_HAS_STRING_ARCH_OPT=y
+UCLIBC_HAS_CTYPE_TABLES=y
+UCLIBC_HAS_CTYPE_SIGNED=y
+UCLIBC_HAS_CTYPE_UNSAFE=y
+# UCLIBC_HAS_CTYPE_CHECKED is not set
+# UCLIBC_HAS_CTYPE_ENFORCED is not set
+UCLIBC_HAS_WCHAR=y
+# UCLIBC_HAS_LOCALE is not set
+# UCLIBC_HAS_HEXADECIMAL_FLOATS is not set
+# UCLIBC_HAS_GLIBC_CUSTOM_PRINTF is not set
+UCLIBC_PRINTF_SCANF_POSITIONAL_ARGS=9
+# UCLIBC_HAS_STDIO_BUFSIZ_NONE is not set
+# UCLIBC_HAS_STDIO_BUFSIZ_256 is not set
+# UCLIBC_HAS_STDIO_BUFSIZ_512 is not set
+# UCLIBC_HAS_STDIO_BUFSIZ_1024 is not set
+# UCLIBC_HAS_STDIO_BUFSIZ_2048 is not set
+UCLIBC_HAS_STDIO_BUFSIZ_4096=y
+# UCLIBC_HAS_STDIO_BUFSIZ_8192 is not set
+UCLIBC_HAS_STDIO_BUILTIN_BUFFER_NONE=y
+# UCLIBC_HAS_STDIO_BUILTIN_BUFFER_4 is not set
+# UCLIBC_HAS_STDIO_BUILTIN_BUFFER_8 is not set
+# UCLIBC_HAS_STDIO_SHUTDOWN_ON_ABORT is not set
+UCLIBC_HAS_STDIO_GETC_MACRO=y
+UCLIBC_HAS_STDIO_PUTC_MACRO=y
+UCLIBC_HAS_STDIO_AUTO_RW_TRANSITION=y
+# UCLIBC_HAS_FOPEN_LARGEFILE_MODE is not set
+# UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE is not set
+# UCLIBC_HAS_FOPEN_CLOSEEXEC_MODE is not set
+# UCLIBC_HAS_GLIBC_CUSTOM_STREAMS is not set
+# UCLIBC_HAS_PRINTF_M_SPEC is not set
+UCLIBC_HAS_ERRNO_MESSAGES=y
+# UCLIBC_HAS_SYS_ERRLIST is not set
+UCLIBC_HAS_SIGNUM_MESSAGES=y
+# UCLIBC_HAS_SYS_SIGLIST is not set
+UCLIBC_HAS_GNU_GETOPT=y
+UCLIBC_HAS_GNU_GETSUBOPT=y
+
+#
+# Big and Tall
+#
+UCLIBC_HAS_REGEX=y
+UCLIBC_HAS_REGEX_OLD=y
+UCLIBC_HAS_FNMATCH=y
+UCLIBC_HAS_FNMATCH_OLD=y
+# UCLIBC_HAS_WORDEXP is not set
+# UCLIBC_HAS_NFTW is not set
+# UCLIBC_HAS_FTW is not set
+# UCLIBC_HAS_FTS is not set
+UCLIBC_HAS_GLOB=y
+# UCLIBC_HAS_GNU_GLOB is not set
+# UCLIBC_HAS_UTMPX is not set
+
+#
+# Library Installation Options
+#
+RUNTIME_PREFIX="/"
+DEVEL_PREFIX="/usr"
+MULTILIB_DIR="lib"
+HARDWIRED_ABSPATH=y
+
+#
+# Security options
+#
+# UCLIBC_HAS_ARC4RANDOM is not set
+# UCLIBC_HAS_SSP is not set
+UCLIBC_BUILD_RELRO=y
+# UCLIBC_BUILD_NOW is not set
+UCLIBC_BUILD_NOEXECSTACK=y
+
+#
+# Development/debugging options
+#
+CROSS_COMPILER_PREFIX="or1k-linux-uclibc-"
+UCLIBC_EXTRA_CFLAGS=""
+# DODEBUG is not set
+# DODEBUG_PT is not set
+# DOSTRIP is not set
+# DOASSERTS is not set
+# SUPPORT_LD_DEBUG is not set
+# SUPPORT_LD_DEBUG_EARLY is not set
+# UCLIBC_MALLOC_DEBUGGING is not set
+# UCLIBC_HAS_BACKTRACE is not set
+WARNINGS="-Wall"
+# EXTRA_WARNINGS is not set
+# DOMULTI is not set
+# UCLIBC_MJN3_ONLY is not set
diff --git a/include/elf.h b/include/elf.h
index 18d286b03..ed952664f 100644
--- a/include/elf.h
+++ b/include/elf.h
@@ -257,7 +257,7 @@ typedef struct
 #define EM_MN10300	89		/* Matsushita MN10300 */
 #define EM_MN10200	90		/* Matsushita MN10200 */
 #define EM_PJ		91		/* picoJava */
-#define EM_OPENRISC	92		/* OpenRISC 32-bit embedded processor */
+#define EM_OR1K		92		/* OpenRISC 32-bit embedded processor */
 #define EM_ARCOMPACT	93		/* ARCompact ISA based Cores: ARC 700 */
 #define EM_XTENSA	94		/* Tensilica Xtensa Architecture */
 #define EM_IP2K		101		/* Ubicom IP2022 micro controller */
@@ -3188,6 +3188,30 @@ typedef Elf32_Addr Elf32_Conflict;
 #define R_METAG_TLS_DTPMOD              57
 #define R_METAG_TLS_DTPOFF              58
 
+/* OpenRISC 1000 specific relocs */
+#define R_OR1K_NONE		0
+#define R_OR1K_32		1
+#define R_OR1K_16		2
+#define R_OR1K_8		3
+#define R_OR1K_LO_16_IN_INSN	4
+#define R_OR1K_HI_16_IN_INSN	5
+#define R_OR1K_INSN_REL_26	6
+#define R_OR1K_GNU_VTENTRY	7
+#define R_OR1K_GNU_VTINHERIT	8
+#define R_OR1K_32_PCREL		9
+#define R_OR1K_16_PCREL		10
+#define R_OR1K_8_PCREL		11
+#define R_OR1K_GOTPC_HI16	12
+#define R_OR1K_GOTPC_LO16	13
+#define R_OR1K_GOT16		14
+#define R_OR1K_PLT26		15
+#define R_OR1K_GOTOFF_HI16	16
+#define R_OR1K_GOTOFF_LO16	17
+#define R_OR1K_COPY		18
+#define R_OR1K_GLOB_DAT		19
+#define R_OR1K_JMP_SLOT		20
+#define R_OR1K_RELATIVE		21
+
 /* ARCompact specific relocs */
 #define R_ARC_NONE		0x0
 #define R_ARC_8			0x1
diff --git a/ldso/ldso/or1k/dl-debug.h b/ldso/ldso/or1k/dl-debug.h
new file mode 100644
index 000000000..d925577cd
--- /dev/null
+++ b/ldso/ldso/or1k/dl-debug.h
@@ -0,0 +1,53 @@
+/* OpenRISC 1000 shared library loader suppport
+ *
+ * Copyright (C) 2012 Stefan Kristansson
+ *
+ * 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. The name of the above contributors may not be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE 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 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.
+ */
+
+static const char * const _dl_reltypes_tab[] =
+	{
+		"R_OR1K_NONE",
+		"R_OR1K_32",
+		"R_OR1K_16",
+		"R_OR1K_8",
+		"R_OR1K_LO_16_IN_INSN",
+		"R_OR1K_HI_16_IN_INSN",
+		"R_OR1K_INSN_REL_26",
+		"R_OR1K_GNU_VTENTRY",
+		"R_OR1K_GNU_VTINHERIT",
+		"R_OR1K_32_PCREL",
+		"R_OR1K_16_PCREL",
+		"R_OR1K_8_PCREL",
+		"R_OR1K_GOTPC_HI16",
+		"R_OR1K_GOTPC_LO16",
+		"R_OR1K_GOT16",
+		"R_OR1K_PLT26",
+		"R_OR1K_GOTOFF_HI16",
+		"R_OR1K_GOTOFF_LO16",
+		"R_OR1K_COPY",
+		"R_OR1K_GLOB_DAT",
+		"R_OR1K_JMP_SLOT",
+		"R_OR1K_RELATIVE",
+	};
diff --git a/ldso/ldso/or1k/dl-startup.h b/ldso/ldso/or1k/dl-startup.h
new file mode 100644
index 000000000..3c99bcd5c
--- /dev/null
+++ b/ldso/ldso/or1k/dl-startup.h
@@ -0,0 +1,106 @@
+/* Startup code for the OpenRISC 1000 platform,
+   based on microblaze implementation */
+/*
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+__asm__ ("\
+	.text\n\
+	.globl _start\n\
+	.type _start,@function\n\
+	.hidden _start\n\
+_start:\n\
+	l.ori	r3, r9, 0\n\
+	l.ori	r3, r1, 0\n\
+	l.movhi	r11, 0\n\
+1:\n\
+	l.addi	r3, r3, 4\n\
+	l.lwz	r12, 0(r3)\n\
+	l.sfnei	r12, 0\n\
+	l.addi	r11, r11, 1\n\
+	l.bf	1b\n\
+	 l.nop\n\
+	l.ori	r3, r11, 0\n\
+	l.ori	r3, r1, 0\n\
+	l.addi	r11, r11, -1\n\
+	/* store argument counter to stack */\n\
+	l.sw	0(r3), r11\n\
+	l.addi	r1, r1, -24\n\
+	l.sw	0(r1), r9\n\
+\n\
+	l.jal	.LPC0\n\
+#ifndef __OR1K_NODELAY__\n\
+	 l.nop\n\
+#endif\n\
+	/* Load the PIC register */\n\
+.LPC0:\n\
+	l.movhi	r16, gotpchi(_GLOBAL_OFFSET_TABLE_+(.-.LPC0))\n\
+	l.ori	r16, r16, gotpclo(_GLOBAL_OFFSET_TABLE_+(.-.LPC0))\n\
+	l.add	r16, r16, r9\n\
+\n\
+	l.jal	_dl_start\n\
+	 l.nop\n\
+	/* FALLTHRU */\n\
+\n\
+	.globl _dl_start_user\n\
+	.type _dl_start_user,@function\n\
+_dl_start_user:\n\
+	l.movhi	r12, gotoffhi(_dl_skip_args)\n\
+	l.ori	r12, r12, gotofflo(_dl_skip_args)\n\
+	l.add	r12, r12, r16\n\
+	l.lwz	r12, 0(r12)\n\
+	l.lwz	r3, 24(r1)\n\
+\n\
+	l.movhi	r9, gotoffhi(_dl_fini)\n\
+	l.ori	r9, r9, gotofflo(_dl_fini)\n\
+	l.add	r9, r9, r16\n\
+\n\
+	l.addi	r9, r9, -8\n\
+	l.addi	r1, r1, 24\n\
+	l.jr	r11\n\
+	l.nop\n\
+	.size _dl_start_user, . - _dl_start_user\n\
+	.previous\n\
+");
+/*
+ * Get a pointer to the argv array.  On many platforms this can be just
+ * the address of the first argument, on other platforms we need to
+ * do something a little more subtle here.
+ */
+#define GET_ARGV(ARGVP, ARGS) ARGVP = (((unsigned long*) ARGS)+1)
+
+/* The ld.so library requires relocations */
+#define ARCH_NEEDS_BOOTSTRAP_RELOCS
+
+static __always_inline
+void PERFORM_BOOTSTRAP_RELOC(ELF_RELOC *rpnt, unsigned long *reloc_addr,
+			     unsigned long symbol_addr, unsigned long load_addr,
+			     attribute_unused Elf32_Sym *symtab)
+{
+
+	switch (ELF_R_TYPE(rpnt->r_info))
+	{
+		case R_OR1K_RELATIVE:
+
+			*reloc_addr = load_addr + rpnt->r_addend;
+			break;
+
+		default:
+			_dl_exit(1);
+			break;
+
+	}
+
+}
diff --git a/ldso/ldso/or1k/dl-syscalls.h b/ldso/ldso/or1k/dl-syscalls.h
new file mode 100644
index 000000000..f40c4fd31
--- /dev/null
+++ b/ldso/ldso/or1k/dl-syscalls.h
@@ -0,0 +1 @@
+/* stub for arch-specific syscall issues */
diff --git a/ldso/ldso/or1k/dl-sysdep.h b/ldso/ldso/or1k/dl-sysdep.h
new file mode 100644
index 000000000..21ca028c8
--- /dev/null
+++ b/ldso/ldso/or1k/dl-sysdep.h
@@ -0,0 +1,105 @@
+/* elf reloc code for the or1k platform, based on glibc 2.3.6, dl-machine.h */
+
+/*
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* Use reloca */
+#define ELF_USES_RELOCA
+
+#include <elf.h>
+
+
+/* Initialise the GOT */
+#define INIT_GOT(GOT_BASE,MODULE)					\
+do {									\
+	GOT_BASE[2] = (unsigned long) _dl_linux_resolve;		\
+	GOT_BASE[1] = (unsigned long) MODULE;				\
+} while(0)
+
+/* Here we define the magic numbers that this dynamic loader should accept */
+
+#define MAGIC1 EM_OR1K
+#undef  MAGIC2
+/* Used for error messages */
+#define ELF_TARGET "or1k"
+
+#define elf_machine_type_class(type) \
+  (((type) == R_OR1K_JMP_SLOT) * ELF_RTYPE_CLASS_PLT \
+   | ((type) == R_OR1K_COPY) * ELF_RTYPE_CLASS_COPY)
+
+static inline Elf32_Addr *
+or1k_get_got (void)
+{
+	Elf32_Addr *got;
+	Elf32_Addr linkreg;
+	__asm__("l.ori   %0, r9, 0\n"
+		"l.jal	.LPC1\n"
+#ifndef __OR1K_NODELAY__
+		"l.nop\n"
+#endif
+	".LPC1:\n"
+		"l.movhi	%1, gotpchi(_GLOBAL_OFFSET_TABLE_+(.-.LPC1))\n"
+		"l.ori	%1, %1, gotpclo(_GLOBAL_OFFSET_TABLE_+(.-.LPC1))\n"
+		"l.add	%1, %1, r9\n"
+		"l.ori	r9, %0, 0\n"
+		: "=r" (linkreg), "=r" (got));
+	return got;
+}
+
+/* Return the link-time address of _DYNAMIC.  Conveniently, this is the
+   first element of the GOT. */
+static inline Elf32_Addr
+elf_machine_dynamic (void)
+{
+  Elf32_Addr *got = or1k_get_got();
+  return *got;
+}
+
+
+/* Return the run-time load address of the shared object.  */
+static inline Elf32_Addr
+elf_machine_load_address (void)
+{
+  /* Compute the difference between the runtime address of _DYNAMIC as seen
+     by a GOTOFF reference, and the link-time address found in the special
+     unrelocated first GOT entry.  */
+  Elf32_Addr dyn;
+  Elf32_Addr *got = or1k_get_got();
+
+  __asm__ __volatile__ (
+    "l.movhi %0, gotoffhi(_DYNAMIC);"
+    "l.ori %0, %0, gotofflo(_DYNAMIC);"
+    "l.add %0, %0, %1;"
+    : "=r"(dyn), "=r"(got)
+    );
+  return dyn - *got;
+}
+
+
+
+static __always_inline void
+elf_machine_relative (Elf32_Addr load_off, const Elf32_Addr rel_addr,
+		      Elf32_Word relative_count)
+{
+	Elf32_Rela * rpnt = (void *) rel_addr;
+	--rpnt;
+	do {
+		Elf32_Addr *const reloc_addr = (void *) (load_off +
+							 (++rpnt)->r_offset);
+
+		*reloc_addr += load_off;
+	} while (--relative_count);
+}
diff --git a/ldso/ldso/or1k/elfinterp.c b/ldso/ldso/or1k/elfinterp.c
new file mode 100644
index 000000000..928e95ba1
--- /dev/null
+++ b/ldso/ldso/or1k/elfinterp.c
@@ -0,0 +1,333 @@
+/* vi: set sw=4 ts=4: */
+/* OpenRISC 1000 ELF shared library loader suppport
+ *
+ * Copyright (c) 1994-2000 Eric Youngdale, Peter MacDonald,
+ *                              David Engel, Hongjiu Lu and Mitch D'Souza
+ * Copyright (C) 2001-2004 Erik Andersen
+ *
+ * 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. The name of the above contributors may not be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE 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 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 "ldso.h"
+
+/* Program to load an ELF binary on a linux system, and run it.
+   References to symbols in sharable libraries can be resolved by either
+   an ELF sharable library or a linux style of shared library. */
+
+/* Disclaimer:  I have never seen any AT&T source code for SVr4, nor have
+   I ever taken any courses on internals.  This program was developed using
+   information available through the book "UNIX SYSTEM V RELEASE 4,
+   Programmers guide: Ansi C and Programming Support Tools", which did
+   a more than adequate job of explaining everything required to get this
+   working. */
+
+extern int _dl_linux_resolve(void);
+
+unsigned long
+_dl_linux_resolver(struct elf_resolve *tpnt, int reloc_entry)
+{
+	ELF_RELOC *this_reloc;
+	char *strtab;
+	ElfW(Sym) *symtab;
+	int symtab_index;
+	char *rel_addr;
+	char *new_addr;
+	char **got_addr;
+	ElfW(Addr) instr_addr;
+	char *symname;
+
+	rel_addr = (char *)tpnt->dynamic_info[DT_JMPREL];
+	this_reloc = (ELF_RELOC *)(rel_addr + reloc_entry);
+	symtab_index = ELF_R_SYM(this_reloc->r_info);
+
+	symtab = (ElfW(Sym) *)tpnt->dynamic_info[DT_SYMTAB];
+	strtab = (char *)tpnt->dynamic_info[DT_STRTAB];
+	symname = strtab + symtab[symtab_index].st_name;
+
+	/* Address of the jump instruction to fix up. */
+	instr_addr = (this_reloc->r_offset + tpnt->loadaddr);
+	got_addr = (char **)instr_addr;
+
+	/* Get the address of the GOT entry. */
+	new_addr = _dl_find_hash(symname, &_dl_loaded_modules->symbol_scope, tpnt, ELF_RTYPE_CLASS_PLT, NULL);
+	if (unlikely(!new_addr)) {
+		_dl_dprintf(2, "%s: can't resolve symbol '%s' in lib '%s'.\n",
+			    _dl_progname, symname, tpnt->libname);
+		_dl_exit(1);
+	}
+
+#if defined (__SUPPORT_LD_DEBUG__)
+	if ((unsigned long)got_addr < 0x40000000) {
+		if (_dl_debug_bindings) {
+			_dl_dprintf(_dl_debug_file, "\nresolve function: %s", symname);
+			if (_dl_debug_detail)
+				_dl_dprintf(_dl_debug_file,
+				            "\tpatched: %x ==> %x @ %x\n",
+				            *got_addr, new_addr, got_addr);
+		}
+	}
+	if (!_dl_debug_nofixups)
+#endif
+		*got_addr = new_addr;
+
+	return (unsigned long)new_addr;
+}
+
+static int
+_dl_parse(struct elf_resolve *tpnt, struct r_scope_elem *scope,
+	  unsigned long rel_addr, unsigned long rel_size,
+	  int (*reloc_fnc)(struct elf_resolve *tpnt, struct r_scope_elem *scope,
+			   ELF_RELOC *rpnt, ElfW(Sym) *symtab, char *strtab))
+{
+	unsigned int i;
+	char *strtab;
+	ElfW(Sym) *symtab;
+	ELF_RELOC *rpnt;
+	int symtab_index;
+
+	/* Parse the relocation information. */
+	rpnt = (ELF_RELOC *)rel_addr;
+	rel_size /= sizeof(ELF_RELOC);
+
+	symtab = (ElfW(Sym) *)tpnt->dynamic_info[DT_SYMTAB];
+	strtab = (char *)tpnt->dynamic_info[DT_STRTA