[Qemu-devel] [PATCH 08/18] bsd-user: move target arch and host OS depend

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[Qemu-devel] [PATCH 08/18] bsd-user: move target arch and host OS depend

From:	Stacey Son
Subject:	[Qemu-devel] [PATCH 08/18] bsd-user: move target arch and host OS dependent code out of elfload.c
Date:	Wed, 16 Oct 2013 09:37:02 -0500
This change moves ELF and thread start up code from elfload.c to the host
OS and arch dependent directories.  This eliminates many of the #ifdef's
in elfload.c and moves the target arch and OS dependent code into its own
directories.

Signed-off-by: Stacey Son <address@hidden>
---
 bsd-user/arm/target_arch_elf.h        |   54 ++
 bsd-user/arm/target_arch_thread.h     |   62 +++
 bsd-user/elfload.c                    |  938 +++++++--------------------------
 bsd-user/freebsd/target_os_elf.h      |  145 +++++
 bsd-user/freebsd/target_os_thread.h   |    6 +
 bsd-user/i386/target_arch_elf.h       |   62 +++
 bsd-user/i386/target_arch_thread.h    |   45 ++
 bsd-user/mips/target_arch_elf.h       |   36 ++
 bsd-user/mips/target_arch_thread.h    |   54 ++
 bsd-user/mips64/target_arch_elf.h     |   36 ++
 bsd-user/mips64/target_arch_thread.h  |   54 ++
 bsd-user/netbsd/target_os_elf.h       |  226 ++++++++
 bsd-user/netbsd/target_os_thread.h    |    6 +
 bsd-user/openbsd/target_os_elf.h      |  226 ++++++++
 bsd-user/openbsd/target_os_thread.h   |    6 +
 bsd-user/sparc/target_arch_elf.h      |   30 +
 bsd-user/sparc/target_arch_thread.h   |   39 ++
 bsd-user/sparc64/target_arch_elf.h    |   34 ++
 bsd-user/sparc64/target_arch_thread.h |   55 ++
 bsd-user/syscall_defs.h               |   64 +++
 bsd-user/x86_64/target_arch_elf.h     |   55 ++
 bsd-user/x86_64/target_arch_thread.h  |   40 ++
 22 files changed, 1518 insertions(+), 755 deletions(-)
 create mode 100644 bsd-user/arm/target_arch_elf.h
 create mode 100644 bsd-user/arm/target_arch_thread.h
 create mode 100644 bsd-user/freebsd/target_os_elf.h
 create mode 100644 bsd-user/freebsd/target_os_thread.h
 create mode 100644 bsd-user/i386/target_arch_elf.h
 create mode 100644 bsd-user/i386/target_arch_thread.h
 create mode 100644 bsd-user/mips/target_arch_elf.h
 create mode 100644 bsd-user/mips/target_arch_thread.h
 create mode 100644 bsd-user/mips64/target_arch_elf.h
 create mode 100644 bsd-user/mips64/target_arch_thread.h
 create mode 100644 bsd-user/netbsd/target_os_elf.h
 create mode 100644 bsd-user/netbsd/target_os_thread.h
 create mode 100644 bsd-user/openbsd/target_os_elf.h
 create mode 100644 bsd-user/openbsd/target_os_thread.h
 create mode 100644 bsd-user/sparc/target_arch_elf.h
 create mode 100644 bsd-user/sparc/target_arch_thread.h
 create mode 100644 bsd-user/sparc64/target_arch_elf.h
 create mode 100644 bsd-user/sparc64/target_arch_thread.h
 create mode 100644 bsd-user/x86_64/target_arch_elf.h
 create mode 100644 bsd-user/x86_64/target_arch_thread.h

diff --git a/bsd-user/arm/target_arch_elf.h b/bsd-user/arm/target_arch_elf.h
new file mode 100644
index 0000000..c408cea
--- /dev/null
+++ b/bsd-user/arm/target_arch_elf.h
@@ -0,0 +1,54 @@
+/*
+ *  arm ELF definitions
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_ELF_H_
+#define _TARGET_ARCH_ELF_H_
+
+#define ELF_START_MMAP 0x80000000
+
+#define elf_check_arch(x) ( (x) == EM_ARM )
+
+#define ELF_CLASS       ELFCLASS32
+#ifdef TARGET_WORDS_BIGENDIAN
+#define ELF_DATA        ELFDATA2MSB
+#else
+#define ELF_DATA        ELFDATA2LSB
+#endif
+#define ELF_ARCH        EM_ARM
+
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE       4096
+
+enum
+{
+  ARM_HWCAP_ARM_SWP       = 1 << 0,
+  ARM_HWCAP_ARM_HALF      = 1 << 1,
+  ARM_HWCAP_ARM_THUMB     = 1 << 2,
+  ARM_HWCAP_ARM_26BIT     = 1 << 3,
+  ARM_HWCAP_ARM_FAST_MULT = 1 << 4,
+  ARM_HWCAP_ARM_FPA       = 1 << 5,
+  ARM_HWCAP_ARM_VFP       = 1 << 6,
+  ARM_HWCAP_ARM_EDSP      = 1 << 7,
+};
+
+#define ELF_HWCAP (ARM_HWCAP_ARM_SWP | ARM_HWCAP_ARM_HALF              \
+                    | ARM_HWCAP_ARM_THUMB | ARM_HWCAP_ARM_FAST_MULT     \
+                    | ARM_HWCAP_ARM_FPA | ARM_HWCAP_ARM_VFP)
+
+
+#endif /* _TARGET_ARCH_ELF_H_ */
diff --git a/bsd-user/arm/target_arch_thread.h 
b/bsd-user/arm/target_arch_thread.h
new file mode 100644
index 0000000..de6615b
--- /dev/null
+++ b/bsd-user/arm/target_arch_thread.h
@@ -0,0 +1,62 @@
+/*
+ *  arm thread support
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_THREAD_H_
+#define _TARGET_ARCH_THREAD_H_
+
+/* Compare to arm/arm/vm_machdep.c cpu_set_upcall_kse() */
+static inline void target_thread_set_upcall(CPUARMState *regs, abi_ulong entry,
+    abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size)
+{
+    abi_ulong sp;
+
+    sp = ((stack_base + stack_size) & (8 - 1)) -
+        sizeof(struct target_trapframe);
+
+    /* fp = sp = stack base */
+    regs->regs[11] = regs->regs[13] = sp;
+    /* pc = start function entry */
+    regs->regs[15] = regs->regs[14] = entry & 0xfffffffe;
+    /* r0 = arg */
+    regs->regs[0] = arg;
+}
+
+static inline void target_thread_init(struct target_pt_regs *regs,
+        struct image_info *infop)
+{
+    abi_long stack = infop->start_stack;
+    memset(regs, 0, sizeof(*regs));
+    regs->ARM_cpsr = 0x10;
+    if (infop->entry & 1)
+      regs->ARM_cpsr |= CPSR_T;
+    regs->ARM_pc = infop->entry & 0xfffffffe;
+    regs->ARM_sp = infop->start_stack;
+    if (bsd_type == target_freebsd) {
+        regs->ARM_lr = infop->entry & 0xfffffffe;
+    }
+    /* FIXME - what to for failure of get_user()? */
+    get_user_ual(regs->ARM_r2, stack + 8); /* envp */
+    get_user_ual(regs->ARM_r1, stack + 4); /* envp */
+    /* XXX: it seems that r0 is zeroed after ! */
+    regs->ARM_r0 = 0;
+    /* For uClinux PIC binaries.  */
+    /* XXX: Linux does this only on ARM with no MMU (do we care ?) */
+    regs->ARM_r10 = infop->start_data;
+}
+
+#endif /* !_TARGET_ARCH_THREAD_H_ */
diff --git a/bsd-user/elfload.c b/bsd-user/elfload.c
index 68d0209..c791a61 100644
--- a/bsd-user/elfload.c
+++ b/bsd-user/elfload.c
@@ -1,4 +1,20 @@
-/* This is the Linux kernel elf-loading code, ported into user space */
+/*
+ *  ELF loading code
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
 
 #include <stdio.h>
 #include <sys/types.h>
@@ -11,548 +27,13 @@
 
 #include "qemu.h"
 #include "disas/disas.h"
-
-#ifdef _ARCH_PPC64
-#undef ARCH_DLINFO
-#undef ELF_PLATFORM
-#undef ELF_HWCAP
-#undef ELF_CLASS
-#undef ELF_DATA
-#undef ELF_ARCH
-#endif
-
-/* from personality.h */
-
-/*
- * Flags for bug emulation.
- *
- * These occupy the top three bytes.
- */
-enum {
-        ADDR_NO_RANDOMIZE =     0x0040000,      /* disable randomization of VA 
space */
-        FDPIC_FUNCPTRS =        0x0080000,      /* userspace function ptrs 
point to descriptors
-                                                 * (signal handling)
-                                                 */
-        MMAP_PAGE_ZERO =        0x0100000,
-        ADDR_COMPAT_LAYOUT =    0x0200000,
-        READ_IMPLIES_EXEC =     0x0400000,
-        ADDR_LIMIT_32BIT =      0x0800000,
-        SHORT_INODE =           0x1000000,
-        WHOLE_SECONDS =         0x2000000,
-        STICKY_TIMEOUTS =       0x4000000,
-        ADDR_LIMIT_3GB =        0x8000000,
-};
-
-/*
- * Personality types.
- *
- * These go in the low byte.  Avoid using the top bit, it will
- * conflict with error returns.
- */
-enum {
-        PER_LINUX =             0x0000,
-        PER_LINUX_32BIT =       0x0000 | ADDR_LIMIT_32BIT,
-        PER_LINUX_FDPIC =       0x0000 | FDPIC_FUNCPTRS,
-        PER_SVR4 =              0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
-        PER_SVR3 =              0x0002 | STICKY_TIMEOUTS | SHORT_INODE,
-        PER_SCOSVR3 =           0x0003 | STICKY_TIMEOUTS |
-                                         WHOLE_SECONDS | SHORT_INODE,
-        PER_OSR5 =              0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS,
-        PER_WYSEV386 =          0x0004 | STICKY_TIMEOUTS | SHORT_INODE,
-        PER_ISCR4 =             0x0005 | STICKY_TIMEOUTS,
-        PER_BSD =               0x0006,
-        PER_SUNOS =             0x0006 | STICKY_TIMEOUTS,
-        PER_XENIX =             0x0007 | STICKY_TIMEOUTS | SHORT_INODE,
-        PER_LINUX32 =           0x0008,
-        PER_LINUX32_3GB =       0x0008 | ADDR_LIMIT_3GB,
-        PER_IRIX32 =            0x0009 | STICKY_TIMEOUTS,/* IRIX5 32-bit */
-        PER_IRIXN32 =           0x000a | STICKY_TIMEOUTS,/* IRIX6 new 32-bit */
-        PER_IRIX64 =            0x000b | STICKY_TIMEOUTS,/* IRIX6 64-bit */
-        PER_RISCOS =            0x000c,
-        PER_SOLARIS =           0x000d | STICKY_TIMEOUTS,
-        PER_UW7 =               0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
-        PER_OSF4 =              0x000f,                  /* OSF/1 v4 */
-        PER_HPUX =              0x0010,
-        PER_MASK =              0x00ff,
-};
-
-/*
- * Return the base personality without flags.
- */
-#define personality(pers)       (pers & PER_MASK)
-
-/* this flag is uneffective under linux too, should be deleted */
-#ifndef MAP_DENYWRITE
-#define MAP_DENYWRITE 0
-#endif
-
-/* should probably go in elf.h */
-#ifndef ELIBBAD
-#define ELIBBAD 80
-#endif
+#include "target_os_elf.h"
+#include "target_os_stack.h"
+#include "target_os_thread.h"
 
 abi_ulong target_stksiz;
 abi_ulong target_stkbas;
 
-#ifdef TARGET_I386
-
-#define ELF_PLATFORM get_elf_platform()
-
-static const char *get_elf_platform(void)
-{
-    static char elf_platform[] = "i386";
-    int family = object_property_get_int(OBJECT(thread_cpu), "family", NULL);
-    if (family > 6)
-        family = 6;
-    if (family >= 3)
-        elf_platform[1] = '0' + family;
-    return elf_platform;
-}
-
-#define ELF_HWCAP get_elf_hwcap()
-
-static uint32_t get_elf_hwcap(void)
-{
-    X86CPU *cpu = X86_CPU(thread_cpu);
-
-    return cpu->env.features[FEAT_1_EDX];
-}
-
-#ifdef TARGET_X86_64
-#define ELF_START_MMAP 0x2aaaaab000ULL
-#define elf_check_arch(x) ( ((x) == ELF_ARCH) )
-
-#define ELF_CLASS      ELFCLASS64
-#define ELF_DATA       ELFDATA2LSB
-#define ELF_ARCH       EM_X86_64
-
-static inline void init_thread(struct target_pt_regs *regs, struct image_info 
*infop)
-{
-    regs->rax = 0;
-    regs->rsp = infop->start_stack;
-    regs->rip = infop->entry;
-    if (bsd_type == target_freebsd) {
-        regs->rdi = infop->start_stack;
-    }
-}
-
-#else
-
-#define ELF_START_MMAP 0x80000000
-
-/*
- * This is used to ensure we don't load something for the wrong architecture.
- */
-#define elf_check_arch(x) ( ((x) == EM_386) || ((x) == EM_486) )
-
-/*
- * These are used to set parameters in the core dumps.
- */
-#define ELF_CLASS       ELFCLASS32
-#define ELF_DATA        ELFDATA2LSB
-#define ELF_ARCH        EM_386
-
-static inline void init_thread(struct target_pt_regs *regs, struct image_info 
*infop)
-{
-    regs->esp = infop->start_stack;
-    regs->eip = infop->entry;
-
-    /* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program
-       starts %edx contains a pointer to a function which might be
-       registered using `atexit'.  This provides a mean for the
-       dynamic linker to call DT_FINI functions for shared libraries
-       that have been loaded before the code runs.
-
-       A value of 0 tells we have no such handler.  */
-    regs->edx = 0;
-}
-#endif
-
-#define USE_ELF_CORE_DUMP
-#define ELF_EXEC_PAGESIZE       4096
-
-#endif
-
-#ifdef TARGET_ARM
-
-#define ELF_START_MMAP 0x80000000
-
-#define elf_check_arch(x) ( (x) == EM_ARM )
-
-#define ELF_CLASS       ELFCLASS32
-#ifdef TARGET_WORDS_BIGENDIAN
-#define ELF_DATA        ELFDATA2MSB
-#else
-#define ELF_DATA        ELFDATA2LSB
-#endif
-#define ELF_ARCH        EM_ARM
-
-static inline void init_thread(struct target_pt_regs *regs, struct image_info 
*infop)
-{
-    abi_long stack = infop->start_stack;
-    memset(regs, 0, sizeof(*regs));
-    regs->ARM_cpsr = 0x10;
-    if (infop->entry & 1)
-      regs->ARM_cpsr |= CPSR_T;
-    regs->ARM_pc = infop->entry & 0xfffffffe;
-    regs->ARM_sp = infop->start_stack;
-    /* FIXME - what to for failure of get_user()? */
-    get_user_ual(regs->ARM_r2, stack + 8); /* envp */
-    get_user_ual(regs->ARM_r1, stack + 4); /* envp */
-    /* XXX: it seems that r0 is zeroed after ! */
-    regs->ARM_r0 = 0;
-    /* For uClinux PIC binaries.  */
-    /* XXX: Linux does this only on ARM with no MMU (do we care ?) */
-    regs->ARM_r10 = infop->start_data;
-}
-
-#define USE_ELF_CORE_DUMP
-#define ELF_EXEC_PAGESIZE       4096
-
-enum
-{
-  ARM_HWCAP_ARM_SWP       = 1 << 0,
-  ARM_HWCAP_ARM_HALF      = 1 << 1,
-  ARM_HWCAP_ARM_THUMB     = 1 << 2,
-  ARM_HWCAP_ARM_26BIT     = 1 << 3,
-  ARM_HWCAP_ARM_FAST_MULT = 1 << 4,
-  ARM_HWCAP_ARM_FPA       = 1 << 5,
-  ARM_HWCAP_ARM_VFP       = 1 << 6,
-  ARM_HWCAP_ARM_EDSP      = 1 << 7,
-};
-
-#define ELF_HWCAP (ARM_HWCAP_ARM_SWP | ARM_HWCAP_ARM_HALF              \
-                    | ARM_HWCAP_ARM_THUMB | ARM_HWCAP_ARM_FAST_MULT     \
-                    | ARM_HWCAP_ARM_FPA | ARM_HWCAP_ARM_VFP)
-
-#endif
-
-#ifdef TARGET_SPARC
-#ifdef TARGET_SPARC64
-
-#define ELF_START_MMAP 0x80000000
-
-#ifndef TARGET_ABI32
-#define elf_check_arch(x) ( (x) == EM_SPARCV9 || (x) == EM_SPARC32PLUS )
-#else
-#define elf_check_arch(x) ( (x) == EM_SPARC32PLUS || (x) == EM_SPARC )
-#endif
-
-#define ELF_CLASS   ELFCLASS64
-#define ELF_DATA    ELFDATA2MSB
-#define ELF_ARCH    EM_SPARCV9
-
-#define STACK_BIAS              2047
-
-static inline void init_thread(struct target_pt_regs *regs, struct image_info 
*infop)
-{
-#ifndef TARGET_ABI32
-    regs->tstate = 0;
-#endif
-    regs->pc = infop->entry;
-    regs->npc = regs->pc + 4;
-    regs->y = 0;
-#ifdef TARGET_ABI32
-    regs->u_regs[14] = infop->start_stack - 16 * 4;
-#else
-    if (personality(infop->personality) == PER_LINUX32)
-        regs->u_regs[14] = infop->start_stack - 16 * 4;
-    else {
-        regs->u_regs[14] = infop->start_stack - 16 * 8 - STACK_BIAS;
-        if (bsd_type == target_freebsd) {
-            regs->u_regs[8] = infop->start_stack;
-            regs->u_regs[11] = infop->start_stack;
-        }
-    }
-#endif
-}
-
-#else
-#define ELF_START_MMAP 0x80000000
-
-#define elf_check_arch(x) ( (x) == EM_SPARC )
-
-#define ELF_CLASS   ELFCLASS32
-#define ELF_DATA    ELFDATA2MSB
-#define ELF_ARCH    EM_SPARC
-
-static inline void init_thread(struct target_pt_regs *regs, struct image_info 
*infop)
-{
-    regs->psr = 0;
-    regs->pc = infop->entry;
-    regs->npc = regs->pc + 4;
-    regs->y = 0;
-    regs->u_regs[14] = infop->start_stack - 16 * 4;
-}
-
-#endif
-#endif
-
-#ifdef TARGET_PPC
-
-#define ELF_START_MMAP 0x80000000
-
-#if defined(TARGET_PPC64) && !defined(TARGET_ABI32)
-
-#define elf_check_arch(x) ( (x) == EM_PPC64 )
-
-#define ELF_CLASS       ELFCLASS64
-
-#else
-
-#define elf_check_arch(x) ( (x) == EM_PPC )
-
-#define ELF_CLASS       ELFCLASS32
-
-#endif
-
-#ifdef TARGET_WORDS_BIGENDIAN
-#define ELF_DATA        ELFDATA2MSB
-#else
-#define ELF_DATA        ELFDATA2LSB
-#endif
-#define ELF_ARCH        EM_PPC
-
-/*
- * We need to put in some extra aux table entries to tell glibc what
- * the cache block size is, so it can use the dcbz instruction safely.
- */
-#define AT_DCACHEBSIZE          19
-#define AT_ICACHEBSIZE          20
-#define AT_UCACHEBSIZE          21
-/* A special ignored type value for PPC, for glibc compatibility.  */
-#define AT_IGNOREPPC            22
-/*
- * The requirements here are:
- * - keep the final alignment of sp (sp & 0xf)
- * - make sure the 32-bit value at the first 16 byte aligned position of
- *   AUXV is greater than 16 for glibc compatibility.
- *   AT_IGNOREPPC is used for that.
- * - for compatibility with glibc ARCH_DLINFO must always be defined on PPC,
- *   even if DLINFO_ARCH_ITEMS goes to zero or is undefined.
- */
-#define DLINFO_ARCH_ITEMS       5
-#define ARCH_DLINFO                                                     \
-do {                                                                    \
-        NEW_AUX_ENT(AT_DCACHEBSIZE, 0x20);                              \
-        NEW_AUX_ENT(AT_ICACHEBSIZE, 0x20);                              \
-        NEW_AUX_ENT(AT_UCACHEBSIZE, 0);                                 \
-        /*                                                              \
-         * Now handle glibc compatibility.                              \
-         */                                                             \
-        NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC);                        \
-        NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC);                        \
- } while (0)
-
-static inline void init_thread(struct target_pt_regs *_regs, struct image_info 
*infop)
-{
-    abi_ulong pos = infop->start_stack;
-    abi_ulong tmp;
-#if defined(TARGET_PPC64) && !defined(TARGET_ABI32)
-    abi_ulong entry, toc;
-#endif
-
-    _regs->gpr[1] = infop->start_stack;
-#if defined(TARGET_PPC64) && !defined(TARGET_ABI32)
-    entry = ldq_raw(infop->entry) + infop->load_addr;
-    toc = ldq_raw(infop->entry + 8) + infop->load_addr;
-    _regs->gpr[2] = toc;
-    infop->entry = entry;
-#endif
-    _regs->nip = infop->entry;
-    /* Note that isn't exactly what regular kernel does
-     * but this is what the ABI wants and is needed to allow
-     * execution of PPC BSD programs.
-     */
-    /* FIXME - what to for failure of get_user()? */
-    get_user_ual(_regs->gpr[3], pos);
-    pos += sizeof(abi_ulong);
-    _regs->gpr[4] = pos;
-    for (tmp = 1; tmp != 0; pos += sizeof(abi_ulong))
-        tmp = ldl(pos);
-    _regs->gpr[5] = pos;
-}
-
-#define USE_ELF_CORE_DUMP
-#define ELF_EXEC_PAGESIZE       4096
-
-#endif
-
-#ifdef TARGET_MIPS
-
-#define ELF_START_MMAP 0x80000000
-
-#define elf_check_arch(x) ( (x) == EM_MIPS )
-
-#ifdef TARGET_MIPS64
-#define ELF_CLASS   ELFCLASS64
-#else
-#define ELF_CLASS   ELFCLASS32
-#endif
-#ifdef TARGET_WORDS_BIGENDIAN
-#define ELF_DATA        ELFDATA2MSB
-#else
-#define ELF_DATA        ELFDATA2LSB
-#endif
-#define ELF_ARCH    EM_MIPS
-
-static inline void init_thread(struct target_pt_regs *regs, struct image_info 
*infop)
-{
-    regs->cp0_status = 2 << CP0St_KSU;
-    regs->cp0_epc = infop->entry;
-    regs->regs[29] = infop->start_stack;
-}
-
-#define USE_ELF_CORE_DUMP
-#define ELF_EXEC_PAGESIZE        4096
-
-#endif /* TARGET_MIPS */
-
-#ifdef TARGET_SH4
-
-#define ELF_START_MMAP 0x80000000
-
-#define elf_check_arch(x) ( (x) == EM_SH )
-
-#define ELF_CLASS ELFCLASS32
-#define ELF_DATA  ELFDATA2LSB
-#define ELF_ARCH  EM_SH
-
-static inline void init_thread(struct target_pt_regs *regs, struct image_info 
*infop)
-{
-  /* Check other registers XXXXX */
-  regs->pc = infop->entry;
-  regs->regs[15] = infop->start_stack;
-}
-
-#define USE_ELF_CORE_DUMP
-#define ELF_EXEC_PAGESIZE        4096
-
-#endif
-
-#ifdef TARGET_CRIS
-
-#define ELF_START_MMAP 0x80000000
-
-#define elf_check_arch(x) ( (x) == EM_CRIS )
-
-#define ELF_CLASS ELFCLASS32
-#define ELF_DATA  ELFDATA2LSB
-#define ELF_ARCH  EM_CRIS
-
-static inline void init_thread(struct target_pt_regs *regs, struct image_info 
*infop)
-{
-  regs->erp = infop->entry;
-}
-
-#define USE_ELF_CORE_DUMP
-#define ELF_EXEC_PAGESIZE        8192
-
-#endif
-
-#ifdef TARGET_M68K
-
-#define ELF_START_MMAP 0x80000000
-
-#define elf_check_arch(x) ( (x) == EM_68K )
-
-#define ELF_CLASS       ELFCLASS32
-#define ELF_DATA        ELFDATA2MSB
-#define ELF_ARCH        EM_68K
-
-/* ??? Does this need to do anything?
-#define ELF_PLAT_INIT(_r) */
-
-static inline void init_thread(struct target_pt_regs *regs, struct image_info 
*infop)
-{
-    regs->usp = infop->start_stack;
-    regs->sr = 0;
-    regs->pc = infop->entry;
-}
-
-#define USE_ELF_CORE_DUMP
-#define ELF_EXEC_PAGESIZE       8192
-
-#endif
-
-#ifdef TARGET_ALPHA
-
-#define ELF_START_MMAP (0x30000000000ULL)
-
-#define elf_check_arch(x) ( (x) == ELF_ARCH )
-
-#define ELF_CLASS      ELFCLASS64
-#define ELF_DATA       ELFDATA2MSB
-#define ELF_ARCH       EM_ALPHA
-
-static inline void init_thread(struct target_pt_regs *regs, struct image_info 
*infop)
-{
-    regs->pc = infop->entry;
-    regs->ps = 8;
-    regs->usp = infop->start_stack;
-    regs->unique = infop->start_data; /* ? */
-    printf("Set unique value to " TARGET_FMT_lx " (" TARGET_FMT_lx ")\n",
-           regs->unique, infop->start_data);
-}
-
-#define USE_ELF_CORE_DUMP
-#define ELF_EXEC_PAGESIZE        8192
-
-#endif /* TARGET_ALPHA */
-
-#ifndef ELF_PLATFORM
-#define ELF_PLATFORM (NULL)
-#endif
-
-#ifndef ELF_HWCAP
-#define ELF_HWCAP 0
-#endif
-
-#ifdef TARGET_ABI32
-#undef ELF_CLASS
-#define ELF_CLASS ELFCLASS32
-#undef bswaptls
-#define bswaptls(ptr) bswap32s(ptr)
-#endif
-
-#include "elf.h"
-
-struct exec
-{
-  unsigned int a_info;   /* Use macros N_MAGIC, etc for access */
-  unsigned int a_text;   /* length of text, in bytes */
-  unsigned int a_data;   /* length of data, in bytes */
-  unsigned int a_bss;    /* length of uninitialized data area, in bytes */
-  unsigned int a_syms;   /* length of symbol table data in file, in bytes */
-  unsigned int a_entry;  /* start address */
-  unsigned int a_trsize; /* length of relocation info for text, in bytes */
-  unsigned int a_drsize; /* length of relocation info for data, in bytes */
-};
-
-
-#define N_MAGIC(exec) ((exec).a_info & 0xffff)
-#define OMAGIC 0407
-#define NMAGIC 0410
-#define ZMAGIC 0413
-#define QMAGIC 0314
-
-/* max code+data+bss space allocated to elf interpreter */
-#define INTERP_MAP_SIZE (32 * 1024 * 1024)
-
-/* max code+data+bss+brk space allocated to ET_DYN executables */
-#define ET_DYN_MAP_SIZE (128 * 1024 * 1024)
-
-/* Necessary parameters */
-#define TARGET_ELF_EXEC_PAGESIZE TARGET_PAGE_SIZE
-#define TARGET_ELF_PAGESTART(_v) ((_v) & ~(unsigned 
long)(TARGET_ELF_EXEC_PAGESIZE-1))
-#define TARGET_ELF_PAGEOFFSET(_v) ((_v) & (TARGET_ELF_EXEC_PAGESIZE-1))
-
-#define INTERPRETER_NONE 0
-#define INTERPRETER_AOUT 1
-#define INTERPRETER_ELF 2
-
-#define DLINFO_ITEMS 12
-
 static inline void memcpy_fromfs(void * to, const void * from, unsigned long n)
 {
         memcpy(to, from, n);
@@ -563,7 +44,7 @@ static int load_aout_interp(void * exptr, int interp_fd);
 #ifdef BSWAP_NEEDED
 static void bswap_ehdr(struct elfhdr *ehdr)
 {
-    bswap16s(&ehdr->e_type);                    /* Object file type */
+    bswap16s(&ehdr->e_type);            /* Object file type */
     bswap16s(&ehdr->e_machine);         /* Architecture */
     bswap32s(&ehdr->e_version);         /* Object file version */
     bswaptls(&ehdr->e_entry);           /* Entry point virtual address */
@@ -571,37 +52,45 @@ static void bswap_ehdr(struct elfhdr *ehdr)
     bswaptls(&ehdr->e_shoff);           /* Section header table file offset */
     bswap32s(&ehdr->e_flags);           /* Processor-specific flags */
     bswap16s(&ehdr->e_ehsize);          /* ELF header size in bytes */
-    bswap16s(&ehdr->e_phentsize);               /* Program header table entry 
size */
+    bswap16s(&ehdr->e_phentsize);       /* Program header table entry size */
     bswap16s(&ehdr->e_phnum);           /* Program header table entry count */
-    bswap16s(&ehdr->e_shentsize);               /* Section header table entry 
size */
+    bswap16s(&ehdr->e_shentsize);       /* Section header table entry size */
     bswap16s(&ehdr->e_shnum);           /* Section header table entry count */
-    bswap16s(&ehdr->e_shstrndx);                /* Section header string table 
index */
+    bswap16s(&ehdr->e_shstrndx);        /* Section header string table index */
 }
 
-static void bswap_phdr(struct elf_phdr *phdr)
+static void bswap_phdr(struct elf_phdr *phdr, int phnum)
 {
-    bswap32s(&phdr->p_type);                    /* Segment type */
-    bswaptls(&phdr->p_offset);          /* Segment file offset */
-    bswaptls(&phdr->p_vaddr);           /* Segment virtual address */
-    bswaptls(&phdr->p_paddr);           /* Segment physical address */
-    bswaptls(&phdr->p_filesz);          /* Segment size in file */
-    bswaptls(&phdr->p_memsz);           /* Segment size in memory */
-    bswap32s(&phdr->p_flags);           /* Segment flags */
-    bswaptls(&phdr->p_align);           /* Segment alignment */
+    int i;
+
+    for (i = 0; i < phnum; i++, phdr++) {
+        bswap32s(&phdr->p_type);        /* Segment type */
+        bswaptls(&phdr->p_offset);      /* Segment file offset */
+        bswaptls(&phdr->p_vaddr);       /* Segment virtual address */
+        bswaptls(&phdr->p_paddr);       /* Segment physical address */
+        bswaptls(&phdr->p_filesz);      /* Segment size in file */
+        bswaptls(&phdr->p_memsz);       /* Segment size in memory */
+        bswap32s(&phdr->p_flags);       /* Segment flags */
+        bswaptls(&phdr->p_align);       /* Segment alignment */
+    }
 }
 
-static void bswap_shdr(struct elf_shdr *shdr)
+static void bswap_shdr(struct elf_shdr *shdr, int shnum)
 {
-    bswap32s(&shdr->sh_name);
-    bswap32s(&shdr->sh_type);
-    bswaptls(&shdr->sh_flags);
-    bswaptls(&shdr->sh_addr);
-    bswaptls(&shdr->sh_offset);
-    bswaptls(&shdr->sh_size);
-    bswap32s(&shdr->sh_link);
-    bswap32s(&shdr->sh_info);
-    bswaptls(&shdr->sh_addralign);
-    bswaptls(&shdr->sh_entsize);
+    int i;
+
+    for (i = 0; i < shnum; i++, shdr++) {
+        bswap32s(&shdr->sh_name);
+        bswap32s(&shdr->sh_type);
+        bswaptls(&shdr->sh_flags);
+        bswaptls(&shdr->sh_addr);
+        bswaptls(&shdr->sh_offset);
+        bswaptls(&shdr->sh_size);
+        bswap32s(&shdr->sh_link);
+        bswap32s(&shdr->sh_info);
+        bswaptls(&shdr->sh_addralign);
+        bswaptls(&shdr->sh_entsize);
+    }
 }
 
 static void bswap_sym(struct elf_sym *sym)
@@ -611,7 +100,15 @@ static void bswap_sym(struct elf_sym *sym)
     bswaptls(&sym->st_size);
     bswap16s(&sym->st_shndx);
 }
-#endif
+
+#else /* ! BSWAP_NEEDED */
+
+static void bswap_ehdr(struct elfhdr *ehdr) { }
+static void bswap_phdr(struct elf_phdr *phdr, int phnum) { }
+static void bswap_shdr(struct elf_shdr *shdr, int shnum) { }
+static void bswap_sym(struct elf_sym *sym) { }
+
+#endif /* ! BSWAP_NEEDED */
 
 /*
  * 'copy_elf_strings()' copies argument/envelope strings from user
@@ -671,39 +168,31 @@ static abi_ulong copy_elf_strings(int argc,char ** argv, 
void **page,
 static abi_ulong setup_arg_pages(abi_ulong p, struct bsd_binprm *bprm,
                                  struct image_info *info)
 {
-    abi_ulong stack_base, size, error;
-    int i;
+    abi_ulong stack_base, size;
+    abi_long addr;
 
     /* Create enough stack to hold everything.  If we don't use
      * it for args, we'll use it for something else...
      */
     size = target_dflssiz;
-    if (size < MAX_ARG_PAGES*TARGET_PAGE_SIZE)
-        size = MAX_ARG_PAGES*TARGET_PAGE_SIZE;
-    error = target_mmap(0,
-                        size + qemu_host_page_size,
-                        PROT_READ | PROT_WRITE,
-                        MAP_PRIVATE | MAP_ANON,
-                        -1, 0);
-    if (error == -1) {
+    stack_base = TARGET_USRSTACK - size;
+    addr = target_mmap(stack_base , size + qemu_host_page_size,
+            PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+    if (addr == -1) {
         perror("stk mmap");
         exit(-1);
     }
     /* we reserve one extra page at the top of the stack as guard */
-    target_mprotect(error + size, qemu_host_page_size, PROT_NONE);
+    target_mprotect(addr + size, qemu_host_page_size, PROT_NONE);
 
-    stack_base = error + size - MAX_ARG_PAGES*TARGET_PAGE_SIZE;
-    p += stack_base;
+    target_stksiz = size;
+    target_stkbas = addr;
 
-    for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
-        if (bprm->page[i]) {
-            info->rss++;
-            /* FIXME - check return value of memcpy_to_target() for failure */
-            memcpy_to_target(stack_base, bprm->page[i], TARGET_PAGE_SIZE);
-            g_free(bprm->page[i]);
-        }
-        stack_base += TARGET_PAGE_SIZE;
+    if (setup_initial_stack(bprm, &p) != 0) {
+        perror("stk setup");
+        exit(-1);
     }
+
     return p;
 }
 
@@ -761,86 +250,6 @@ static void padzero(abi_ulong elf_bss, abi_ulong last_bss)
         }
 }
 
-
-static abi_ulong create_elf_tables(abi_ulong p, int argc, int envc,
-                                   struct elfhdr * exec,
-                                   abi_ulong load_addr,
-                                   abi_ulong load_bias,
-                                   abi_ulong interp_load_addr, int ibcs,
-                                   struct image_info *info)
-{
-        abi_ulong sp;
-        int size;
-        abi_ulong u_platform;
-        const char *k_platform;
-        const int n = sizeof(elf_addr_t);
-
-        sp = p;
-        u_platform = 0;
-        k_platform = ELF_PLATFORM;
-        if (k_platform) {
-            size_t len = strlen(k_platform) + 1;
-            sp -= (len + n - 1) & ~(n - 1);
-            u_platform = sp;
-            /* FIXME - check return value of memcpy_to_target() for failure */
-            memcpy_to_target(sp, k_platform, len);
-        }
-        /*
-         * Force 16 byte _final_ alignment here for generality.
-         */
-        sp = sp &~ (abi_ulong)15;
-        size = (DLINFO_ITEMS + 1) * 2;
-        if (k_platform)
-          size += 2;
-#ifdef DLINFO_ARCH_ITEMS
-        size += DLINFO_ARCH_ITEMS * 2;
-#endif
-        size += envc + argc + 2;
-        size += (!ibcs ? 3 : 1);        /* argc itself */
-        size *= n;
-        if (size & 15)
-            sp -= 16 - (size & 15);
-
-        /* This is correct because Linux defines
-         * elf_addr_t as Elf32_Off / Elf64_Off
-         */
-#define NEW_AUX_ENT(id, val) do {               \
-            sp -= n; put_user_ual(val, sp);     \
-            sp -= n; put_user_ual(id, sp);      \
-          } while(0)
-
-        NEW_AUX_ENT (AT_NULL, 0);
-
-        /* There must be exactly DLINFO_ITEMS entries here.  */
-        NEW_AUX_ENT(AT_PHDR, (abi_ulong)(load_addr + exec->e_phoff));
-        NEW_AUX_ENT(AT_PHENT, (abi_ulong)(sizeof (struct elf_phdr)));
-        NEW_AUX_ENT(AT_PHNUM, (abi_ulong)(exec->e_phnum));
-        NEW_AUX_ENT(AT_PAGESZ, (abi_ulong)(TARGET_PAGE_SIZE));
-        NEW_AUX_ENT(AT_BASE, (abi_ulong)(interp_load_addr));
-        NEW_AUX_ENT(AT_FLAGS, (abi_ulong)0);
-        NEW_AUX_ENT(AT_ENTRY, load_bias + exec->e_entry);
-        NEW_AUX_ENT(AT_UID, (abi_ulong) getuid());
-        NEW_AUX_ENT(AT_EUID, (abi_ulong) geteuid());
-        NEW_AUX_ENT(AT_GID, (abi_ulong) getgid());
-        NEW_AUX_ENT(AT_EGID, (abi_ulong) getegid());
-        NEW_AUX_ENT(AT_HWCAP, (abi_ulong) ELF_HWCAP);
-        NEW_AUX_ENT(AT_CLKTCK, (abi_ulong) sysconf(_SC_CLK_TCK));
-        if (k_platform)
-            NEW_AUX_ENT(AT_PLATFORM, u_platform);
-#ifdef ARCH_DLINFO
-        /*
-         * ARCH_DLINFO must come last so platform specific code can enforce
-         * special alignment requirements on the AUXV if necessary (eg. PPC).
-         */
-        ARCH_DLINFO;
-#endif
-#undef NEW_AUX_ENT
-
-        sp = loader_build_argptr(envc, argc, sp, p, !ibcs);
-        return sp;
-}
-
-
 static abi_ulong load_elf_interp(struct elfhdr * interp_elf_ex,
                                  int interpreter_fd,
                                  abi_ulong *interp_load_addr)
@@ -858,9 +267,7 @@ static abi_ulong load_elf_interp(struct elfhdr * 
interp_elf_ex,
         last_bss = 0;
         error = 0;
 
-#ifdef BSWAP_NEEDED
         bswap_ehdr(interp_elf_ex);
-#endif
         /* First of all, some simple consistency checks */
         if ((interp_elf_ex->e_type != ET_EXEC &&
              interp_elf_ex->e_type != ET_DYN) ||
@@ -901,12 +308,7 @@ static abi_ulong load_elf_interp(struct elfhdr * 
interp_elf_ex,
                 free (elf_phdata);
                 return retval;
         }
-#ifdef BSWAP_NEEDED
-        eppnt = elf_phdata;
-        for (i=0; i<interp_elf_ex->e_phnum; i++, eppnt++) {
-            bswap_phdr(eppnt);
-        }
-#endif
+        bswap_phdr(elf_phdata, interp_elf_ex->e_phnum);
 
         if (interp_elf_ex->e_type == ET_DYN) {
             /* in order to avoid hardcoding the interpreter load
@@ -923,54 +325,57 @@ static abi_ulong load_elf_interp(struct elfhdr * 
interp_elf_ex,
         }
 
         eppnt = elf_phdata;
-        for(i=0; i<interp_elf_ex->e_phnum; i++, eppnt++)
-          if (eppnt->p_type == PT_LOAD) {
-            int elf_type = MAP_PRIVATE | MAP_DENYWRITE;
-            int elf_prot = 0;
-            abi_ulong vaddr = 0;
-            abi_ulong k;
-
-            if (eppnt->p_flags & PF_R) elf_prot =  PROT_READ;
-            if (eppnt->p_flags & PF_W) elf_prot |= PROT_WRITE;
-            if (eppnt->p_flags & PF_X) elf_prot |= PROT_EXEC;
-            if (interp_elf_ex->e_type == ET_EXEC || load_addr_set) {
-                elf_type |= MAP_FIXED;
-                vaddr = eppnt->p_vaddr;
-            }
-            error = target_mmap(load_addr+TARGET_ELF_PAGESTART(vaddr),
-                 eppnt->p_filesz + TARGET_ELF_PAGEOFFSET(eppnt->p_vaddr),
-                 elf_prot,
-                 elf_type,
-                 interpreter_fd,
-                 eppnt->p_offset - TARGET_ELF_PAGEOFFSET(eppnt->p_vaddr));
-
-            if (error == -1) {
-              /* Real error */
-              close(interpreter_fd);
-              free(elf_phdata);
-              return ~((abi_ulong)0UL);
-            }
-
-            if (!load_addr_set && interp_elf_ex->e_type == ET_DYN) {
-              load_addr = error;
-              load_addr_set = 1;
+        for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++)
+            if (eppnt->p_type == PT_LOAD) {
+                int elf_type = MAP_PRIVATE | MAP_DENYWRITE;
+                int elf_prot = 0;
+                abi_ulong vaddr = 0;
+                abi_ulong k;
+
+                if (eppnt->p_flags & PF_R) {
+                    elf_prot =  PROT_READ;
+                }
+                if (eppnt->p_flags & PF_W) {
+                    elf_prot |= PROT_WRITE;
+                }
+                if (eppnt->p_flags & PF_X) {
+                    elf_prot |= PROT_EXEC;
+                }
+                if (interp_elf_ex->e_type == ET_EXEC || load_addr_set) {
+                    elf_type |= MAP_FIXED;
+                    vaddr = eppnt->p_vaddr;
+                }
+                error = target_mmap(load_addr+TARGET_ELF_PAGESTART(vaddr),
+                        eppnt->p_filesz + 
TARGET_ELF_PAGEOFFSET(eppnt->p_vaddr),
+                        elf_prot, elf_type, interpreter_fd, eppnt->p_offset -
+                        TARGET_ELF_PAGEOFFSET(eppnt->p_vaddr));
+                if (error == -1) {
+                    /* Real error */
+                    close(interpreter_fd);
+                    free(elf_phdata);
+                    return ~((abi_ulong)0UL);
+                }
+                if (!load_addr_set && interp_elf_ex->e_type == ET_DYN) {
+                    load_addr = error;
+                    load_addr_set = 1;
+                }
+                /*
+                 * Find the end of the file  mapping for this phdr, and keep
+                 * track of the largest address we see for this.
+                 */
+                k = load_addr + eppnt->p_vaddr + eppnt->p_filesz;
+                if (k > elf_bss) {
+                    elf_bss = k;
+                }
+                /*
+                 * Do the same thing for the memory mapping - between
+                 * elf_bss and last_bss is the bss section.
+                 */
+                k = load_addr + eppnt->p_memsz + eppnt->p_vaddr;
+                if (k > last_bss) {
+                    last_bss = k;
+                }
             }
-
-            /*
-             * Find the end of the file  mapping for this phdr, and keep
-             * track of the largest address we see for this.
-             */
-            k = load_addr + eppnt->p_vaddr + eppnt->p_filesz;
-            if (k > elf_bss) elf_bss = k;
-
-            /*
-             * Do the same thing for the memory mapping - between
-             * elf_bss and last_bss is the bss section.
-             */
-            k = load_addr + eppnt->p_memsz + eppnt->p_vaddr;
-            if (k > last_bss) last_bss = k;
-          }
-
         /* Now use mmap to map the library into memory. */
 
         close(interpreter_fd);
@@ -982,7 +387,8 @@ static abi_ulong load_elf_interp(struct elfhdr * 
interp_elf_ex,
          * bss page.
          */
         padzero(elf_bss, last_bss);
-        elf_bss = TARGET_ELF_PAGESTART(elf_bss + qemu_host_page_size - 1); /* 
What we have mapped so far */
+        /* What we have mapped so far */
+        elf_bss = TARGET_ELF_PAGESTART(elf_bss + qemu_host_page_size - 1);
 
         /* Map the last of the bss segment */
         if (last_bss > elf_bss) {
@@ -1051,9 +457,7 @@ static void load_symbols(struct elfhdr *hdr, int fd)
     for (i = 0; i < hdr->e_shnum; i++) {
         if (read(fd, &sechdr, sizeof(sechdr)) != sizeof(sechdr))
             return;
-#ifdef BSWAP_NEEDED
-        bswap_shdr(&sechdr);
-#endif
+        bswap_shdr(&sechdr, 1);
         if (sechdr.sh_type == SHT_SYMTAB) {
             symtab = sechdr;
             lseek(fd, hdr->e_shoff
@@ -1061,9 +465,7 @@ static void load_symbols(struct elfhdr *hdr, int fd)
             if (read(fd, &strtab, sizeof(strtab))
                 != sizeof(strtab))
                 return;
-#ifdef BSWAP_NEEDED
-            bswap_shdr(&strtab);
-#endif
+            bswap_shdr(&strtab, 1);
             goto found;
         }
     }
@@ -1096,9 +498,7 @@ static void load_symbols(struct elfhdr *hdr, int fd)
 
     i = 0;
     while (i < nsyms) {
-#ifdef BSWAP_NEEDED
         bswap_sym(syms + i);
-#endif
         // Throw away entries which we do not need.
         if (syms[i].st_shndx == SHN_UNDEF ||
                 syms[i].st_shndx >= SHN_LORESERVE ||
@@ -1150,6 +550,30 @@ static void load_symbols(struct elfhdr *hdr, int fd)
     syminfos = s;
 }
 
+/* Check the elf header and see if this a target elf binary. */
+int is_target_elf_binary(int fd)
+{
+    uint8_t buf[128];
+    struct elfhdr elf_ex;
+
+    if (lseek(fd, 0L, SEEK_SET) < 0) {
+        return 0;
+    }
+    if (read(fd, buf, sizeof(buf)) < 0) {
+        return 0;
+    }
+
+    elf_ex = *((struct elfhdr *)buf);
+    bswap_ehdr(&elf_ex);
+
+    if ((elf_ex.e_type != ET_EXEC && elf_ex.e_type != ET_DYN) ||
+        (!elf_check_arch(elf_ex.e_machine))) {
+        return 0;
+    } else {
+        return 1;
+    }
+}
+
 int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs,
                     struct image_info *info)
 {
@@ -1180,9 +604,7 @@ int load_elf_binary(struct bsd_binprm *bprm, struct 
target_pt_regs *regs,
     load_addr = 0;
     load_bias = 0;
     elf_ex = *((struct elfhdr *) bprm->buf);          /* exec-header */
-#ifdef BSWAP_NEEDED
     bswap_ehdr(&elf_ex);
-#endif
 
     /* First of all, some simple consistency checks */
     if ((elf_ex.e_type != ET_EXEC && elf_ex.e_type != ET_DYN) ||
@@ -1190,12 +612,14 @@ int load_elf_binary(struct bsd_binprm *bprm, struct 
target_pt_regs *regs,
             return -ENOEXEC;
     }
 
+#ifndef __FreeBSD__
     bprm->p = copy_elf_strings(1, &bprm->filename, bprm->page, bprm->p);
     bprm->p = copy_elf_strings(bprm->envc,bprm->envp,bprm->page,bprm->p);
     bprm->p = copy_elf_strings(bprm->argc,bprm->argv,bprm->page,bprm->p);
     if (!bprm->p) {
         retval = -E2BIG;
     }
+#endif /* ! __FreeBSD__ */
 
     /* Now read in all of the header information */
     elf_phdata = (struct elf_phdr *)malloc(elf_ex.e_phentsize*elf_ex.e_phnum);
@@ -1216,12 +640,7 @@ int load_elf_binary(struct bsd_binprm *bprm, struct 
target_pt_regs *regs,
         return -errno;
     }
 
-#ifdef BSWAP_NEEDED
-    elf_ppnt = elf_phdata;
-    for (i=0; i<elf_ex.e_phnum; i++, elf_ppnt++) {
-        bswap_phdr(elf_ppnt);
-    }
-#endif
+    bswap_phdr(elf_phdata, elf_ex.e_phnum);
     elf_ppnt = elf_phdata;
 
     elf_bss = 0;
@@ -1236,7 +655,7 @@ int load_elf_binary(struct bsd_binprm *bprm, struct 
target_pt_regs *regs,
     end_data = 0;
     interp_ex.a_info = 0;
 
-    for(i=0;i < elf_ex.e_phnum; i++) {
+    for (i = 0; i < elf_ex.e_phnum; i++) {
         if (elf_ppnt->p_type == PT_INTERP) {
             if ( elf_interpreter != NULL )
             {
@@ -1274,9 +693,9 @@ int load_elf_binary(struct bsd_binprm *bprm, struct 
target_pt_regs *regs,
 
             /* JRP - Need to add X86 lib dir stuff here... */
 
-            if (strcmp(elf_interpreter,"/usr/lib/libc.so.1") == 0 ||
-                strcmp(elf_interpreter,"/usr/lib/ld.so.1") == 0) {
-              ibcs2_interpreter = 1;
+            if (strcmp(elf_interpreter, "/usr/lib/libc.so.1") == 0 ||
+                    strcmp(elf_interpreter, "/usr/lib/ld-elf.so.1") == 0) {
+                ibcs2_interpreter = 1;
             }
 
 #if 0
@@ -1406,7 +825,7 @@ int load_elf_binary(struct bsd_binprm *bprm, struct 
target_pt_regs *regs,
      * address.
      */
 
-    for(i = 0, elf_ppnt = elf_phdata; i < elf_ex.e_phnum; i++, elf_ppnt++) {
+    for (i = 0, elf_ppnt = elf_phdata; i < elf_ex.e_phnum; i++, elf_ppnt++) {
         int elf_prot = 0;
         int elf_flags = 0;
         abi_ulong error;
@@ -1423,7 +842,7 @@ int load_elf_binary(struct bsd_binprm *bprm, struct 
target_pt_regs *regs,
         } else if (elf_ex.e_type == ET_DYN) {
             /* Try and get dynamic programs out of the way of the default mmap
                base, as well as whatever program they might try to exec.  This
-               is because the brk will follow the loader, and is not movable.  
*/
+               is because the brk will follow the loader, and is not movable. 
*/
             /* NOTE: for qemu, we do a big mmap to get enough space
                without hardcoding any address */
             error = target_mmap(0, ET_DYN_MAP_SIZE,
@@ -1520,7 +939,7 @@ int load_elf_binary(struct bsd_binprm *bprm, struct 
target_pt_regs *regs,
 #ifdef LOW_ELF_STACK
     info->start_stack = bprm->p = elf_stack - 4;
 #endif
-    bprm->p = create_elf_tables(bprm->p,
+    bprm->p = target_create_elf_tables(bprm->p,
                     bprm->argc,
                     bprm->envc,
                     &elf_ex,
@@ -1536,19 +955,22 @@ int load_elf_binary(struct bsd_binprm *bprm, struct 
target_pt_regs *regs,
     info->end_data = end_data;
     info->start_stack = bprm->p;
 
-    /* Calling set_brk effectively mmaps the pages that we need for the bss 
and break
-       sections */
+    /*
+     * Calling set_brk effectively mmaps the pages that we need for the bss
+     * and break sections.
+     */
     set_brk(elf_bss, elf_brk);
 
     padzero(elf_bss, elf_brk);
 
 #if 0
-    printf("(start_brk) %x\n" , info->start_brk);
-    printf("(end_code) %x\n" , info->end_code);
-    printf("(start_code) %x\n" , info->start_code);
-    printf("(end_data) %x\n" , info->end_data);
-    printf("(start_stack) %x\n" , info->start_stack);
-    printf("(brk) %x\n" , info->brk);
+    printf("(start_brk) 0x" TARGET_FMT_lx "\n" , info->start_brk);
+    printf("(end_code) 0x" TARGET_FMT_lx "\n" , info->end_code);
+    printf("(start_code) 0x" TARGET_FMT_lx "\n" , info->start_code);
+    printf("(start_data) 0x" TARGET_FMT_lx "\n" , info->start_data);
+    printf("(end_data) 0x" TARGET_FMT_lx "\n" , info->end_data);
+    printf("(start_stack) 0x" TARGET_FMT_lx "\n" , info->start_stack);
+    printf("(brk) 0x" TARGET_FMT_lx "\n" , info->brk);
 #endif
 
     if ( info->personality == PER_SVR4 )
@@ -1557,12 +979,18 @@ int load_elf_binary(struct bsd_binprm *bprm, struct 
target_pt_regs *regs,
                and some applications "depend" upon this behavior.
                Since we do not have the power to recompile these, we
                emulate the SVr4 behavior.  Sigh.  */
-            mapped_addr = target_mmap(0, qemu_host_page_size, PROT_READ | 
PROT_EXEC,
-                                      MAP_FIXED | MAP_PRIVATE, -1, 0);
+            mapped_addr = target_mmap(0, qemu_host_page_size, PROT_READ |
+                    PROT_EXEC, MAP_FIXED | MAP_PRIVATE, -1, 0);
     }
 
     info->entry = elf_entry;
 
+#ifdef USE_ELF_CORE_DUMP
+    /* not yet */
+    /* bprm->core_dump = &elf_core_dump; */
+    bprm->core_dump = NULL;
+#endif
+
     return 0;
 }
 
@@ -1574,5 +1002,5 @@ static int load_aout_interp(void * exptr, int interp_fd)
 
 void do_init_thread(struct target_pt_regs *regs, struct image_info *infop)
 {
-    init_thread(regs, infop);
+    target_thread_init(regs, infop);
 }
diff --git a/bsd-user/freebsd/target_os_elf.h b/bsd-user/freebsd/target_os_elf.h
new file mode 100644
index 0000000..67637a0
--- /dev/null
+++ b/bsd-user/freebsd/target_os_elf.h
@@ -0,0 +1,145 @@
+/*
+ *  freebsd ELF definitions
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_OS_ELF_H_
+#define _TARGET_OS_ELF_H_
+
+#include "target_arch_elf.h"
+#include "elf.h"
+
+/* this flag is uneffective under linux too, should be deleted */
+#ifndef MAP_DENYWRITE
+#define MAP_DENYWRITE 0
+#endif
+
+/* should probably go in elf.h */
+#ifndef ELIBBAD
+#define ELIBBAD 80
+#endif
+
+#ifndef ELF_PLATFORM
+#define ELF_PLATFORM (NULL)
+#endif
+
+#ifndef ELF_HWCAP
+#define ELF_HWCAP 0
+#endif
+
+#ifdef TARGET_ABI32
+#undef ELF_CLASS
+#define ELF_CLASS ELFCLASS32
+#undef bswaptls
+#define bswaptls(ptr) bswap32s(ptr)
+#endif
+
+struct exec
+{
+  unsigned int a_info;   /* Use macros N_MAGIC, etc for access */
+  unsigned int a_text;   /* length of text, in bytes */
+  unsigned int a_data;   /* length of data, in bytes */
+  unsigned int a_bss;    /* length of uninitialized data area, in bytes */
+  unsigned int a_syms;   /* length of symbol table data in file, in bytes */
+  unsigned int a_entry;  /* start address */
+  unsigned int a_trsize; /* length of relocation info for text, in bytes */
+  unsigned int a_drsize; /* length of relocation info for data, in bytes */
+};
+
+
+#define N_MAGIC(exec) ((exec).a_info & 0xffff)
+#define OMAGIC 0407
+#define NMAGIC 0410
+#define ZMAGIC 0413
+#define QMAGIC 0314
+
+/* max code+data+bss space allocated to elf interpreter */
+#define INTERP_MAP_SIZE (32 * 1024 * 1024)
+
+/* max code+data+bss+brk space allocated to ET_DYN executables */
+#define ET_DYN_MAP_SIZE (128 * 1024 * 1024)
+
+/* Necessary parameters */
+#define TARGET_ELF_EXEC_PAGESIZE TARGET_PAGE_SIZE
+#define TARGET_ELF_PAGESTART(_v) ((_v) & \
+        ~(unsigned long)(TARGET_ELF_EXEC_PAGESIZE-1))
+#define TARGET_ELF_PAGEOFFSET(_v) ((_v) & (TARGET_ELF_EXEC_PAGESIZE-1))
+
+#define INTERPRETER_NONE 0
+#define INTERPRETER_AOUT 1
+#define INTERPRETER_ELF 2
+
+#define DLINFO_ITEMS 12
+
+static abi_ulong target_create_elf_tables(abi_ulong p, int argc, int envc,
+                                   struct elfhdr * exec,
+                                   abi_ulong load_addr,
+                                   abi_ulong load_bias,
+                                   abi_ulong interp_load_addr, int ibcs,
+                                   struct image_info *info)
+{
+        abi_ulong sp;
+        int size;
+        const int n = sizeof(elf_addr_t);
+
+        sp = p;
+        /*
+         * Force 16 byte _final_ alignment here for generality.
+         */
+        sp = sp &~ (abi_ulong)15;
+        size = (DLINFO_ITEMS + 1) * 2;
+        size += envc + argc + 2;
+        size += (!ibcs ? 3 : 1);        /* argc itself */
+        size *= n;
+        if (size & 15)
+            sp -= 16 - (size & 15);
+
+        /* This is correct because Linux defines
+         * elf_addr_t as Elf32_Off / Elf64_Off
+         */
+#define NEW_AUX_ENT(id, val) do {               \
+            sp -= n; put_user_ual(val, sp);     \
+            sp -= n; put_user_ual(id, sp);      \
+          } while(0)
+
+        NEW_AUX_ENT (AT_NULL, 0);
+
+        /* There must be exactly DLINFO_ITEMS entries here.  */
+        NEW_AUX_ENT(AT_PHDR, (abi_ulong)(load_addr + exec->e_phoff));
+        NEW_AUX_ENT(AT_PHENT, (abi_ulong)(sizeof (struct elf_phdr)));
+        NEW_AUX_ENT(AT_PHNUM, (abi_ulong)(exec->e_phnum));
+        NEW_AUX_ENT(AT_PAGESZ, (abi_ulong)(TARGET_PAGE_SIZE));
+        NEW_AUX_ENT(AT_BASE, (abi_ulong)(interp_load_addr));
+        NEW_AUX_ENT(AT_FLAGS, (abi_ulong)0);
+        NEW_AUX_ENT(AT_ENTRY, load_bias + exec->e_entry);
+        NEW_AUX_ENT(AT_UID, (abi_ulong) getuid());
+        NEW_AUX_ENT(AT_EUID, (abi_ulong) geteuid());
+        NEW_AUX_ENT(AT_GID, (abi_ulong) getgid());
+        NEW_AUX_ENT(AT_EGID, (abi_ulong) getegid());
+#ifdef ARCH_DLINFO
+        /*
+         * ARCH_DLINFO must come last so platform specific code can enforce
+         * special alignment requirements on the AUXV if necessary (eg. PPC).
+         */
+        ARCH_DLINFO;
+#endif
+#undef NEW_AUX_ENT
+
+        sp = loader_build_argptr(envc, argc, sp, p, !ibcs);
+        return sp;
+}
+
+#endif /* _TARGET_OS_ELF_H_ */
diff --git a/bsd-user/freebsd/target_os_thread.h 
b/bsd-user/freebsd/target_os_thread.h
new file mode 100644
index 0000000..519aad8
--- /dev/null
+++ b/bsd-user/freebsd/target_os_thread.h
@@ -0,0 +1,6 @@
+#ifndef _TARGET_OS_THREAD_H_
+#define _TARGET_OS_THREAD_H_
+
+#include "target_arch_thread.h"
+
+#endif /* !_TARGET_OS_THREAD_H_ */
diff --git a/bsd-user/i386/target_arch_elf.h b/bsd-user/i386/target_arch_elf.h
new file mode 100644
index 0000000..83b2197
--- /dev/null
+++ b/bsd-user/i386/target_arch_elf.h
@@ -0,0 +1,62 @@
+/*
+ *  i386 ELF definitions
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_ELF_H_
+#define _TARGET_ARCH_ELF_H_
+
+#define ELF_START_MMAP 0x80000000
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) ( ((x) == EM_386) || ((x) == EM_486) )
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS       ELFCLASS32
+#define ELF_DATA        ELFDATA2LSB
+#define ELF_ARCH        EM_386
+
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE       4096
+
+/* XXX */
+#ifndef __FreeBSD__
+#define ELF_PLATFORM target_elf_get_platform()
+
+static const char *target_elf_get_platform(void)
+{
+    static char elf_platform[] = "i386";
+    int family = (thread_env->cpuid_version >> 8) & 0xff;
+    if (family > 6)
+        family = 6;
+    if (family >= 3)
+        elf_platform[1] = '0' + family;
+    return elf_platform;
+}
+
+#define ELF_HWCAP target_elf_get_hwcap()
+
+static uint32_t target_elf_get_hwcap(void)
+{
+    return thread_env->features[FEAT_1_EDX];
+}
+#endif /* ! __FreeBSD__ */
+
+#endif /* _TARGET_ARCH_ELF_H_ */
diff --git a/bsd-user/i386/target_arch_thread.h 
b/bsd-user/i386/target_arch_thread.h
new file mode 100644
index 0000000..407aa6c
--- /dev/null
+++ b/bsd-user/i386/target_arch_thread.h
@@ -0,0 +1,45 @@
+/*
+ *  i386 thread support
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_THREAD_H_
+#define _TARGET_ARCH_THREAD_H_
+
+/* Compare to vm_machdep.c cpu_set_upcall_kse() */
+static inline void target_thread_set_upcall(CPUX86State *regs, abi_ulong entry,
+    abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size)
+{
+    /* XXX */
+}
+
+static inline void target_thread_init(struct target_pt_regs *regs,
+        struct image_info *infop)
+{
+    regs->esp = infop->start_stack;
+    regs->eip = infop->entry;
+
+    /* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program
+       starts %edx contains a pointer to a function which might be
+       registered using `atexit'.  This provides a mean for the
+       dynamic linker to call DT_FINI functions for shared libraries
+       that have been loaded before the code runs.
+
+       A value of 0 tells we have no such handler.  */
+    regs->edx = 0;
+}
+
+#endif /* !_TARGET_ARCH_THREAD_H_ */
diff --git a/bsd-user/mips/target_arch_elf.h b/bsd-user/mips/target_arch_elf.h
new file mode 100644
index 0000000..8630f34
--- /dev/null
+++ b/bsd-user/mips/target_arch_elf.h
@@ -0,0 +1,36 @@
+/*
+ *  mips ELF definitions
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_ELF_H_
+#define _TARGET_ARCH_ELF_H_
+
+#define elf_check_arch(x) ( (x) == EM_MIPS )
+#define ELF_START_MMAP 0x80000000
+#define ELF_CLASS   ELFCLASS32
+
+#ifdef TARGET_WORDS_BIGENDIAN
+#define ELF_DATA        ELFDATA2MSB
+#else
+#define ELF_DATA        ELFDATA2LSB
+#endif
+#define ELF_ARCH    EM_MIPS
+
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE        4096
+
+#endif /* _TARGET_ARCH_ELF_H_ */
diff --git a/bsd-user/mips/target_arch_thread.h 
b/bsd-user/mips/target_arch_thread.h
new file mode 100644
index 0000000..c76b0d6
--- /dev/null
+++ b/bsd-user/mips/target_arch_thread.h
@@ -0,0 +1,54 @@
+/*
+ *  mips thread support
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_THREAD_H_
+#define _TARGET_ARCH_THREAD_H_
+
+/* Compare to mips/mips/vm_machdep.c cpu_set_upcall_kse() */
+static inline void target_thread_set_upcall(CPUMIPSState *regs, abi_ulong 
entry,
+    abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size)
+{
+    abi_ulong sp;
+
+    /*
+     * At the point where a function is called, sp must be 8
+     * byte aligned[for compatibility with 64-bit CPUs]
+     * in ``See MIPS Run'' by D. Sweetman, p. 269
+     * align stack
+     */
+    sp = ((stack_base + stack_size) & ~0x7) - TARGET_CALLFRAME_SIZ;
+
+    /* t9 = pc = start function entry */
+    regs->active_tc.gpr[25] = regs->active_tc.PC = entry;
+    /* a0 = arg */
+    regs->active_tc.gpr[4] = arg;
+    /* sp = top of the stack */
+    regs->active_tc.gpr[29] = sp;
+}
+
+static inline void target_thread_init(struct target_pt_regs *regs,
+        struct image_info *infop)
+{
+    regs->cp0_status = 2 << CP0St_KSU;
+    regs->regs[25] = regs->cp0_epc = infop->entry & ~3;  /* t9/pc = entry */
+    regs->regs[4] = regs->regs[29] = infop->start_stack; /* a0/sp = stack */
+    regs->regs[5] = regs->regs[6] = 0;                   /* a1/a2 = 0 */
+    regs->regs[7] = TARGET_PS_STRINGS;                   /* a3 = ps_strings */
+}
+
+#endif /* !_TARGET_ARCH_THREAD_H_ */
diff --git a/bsd-user/mips64/target_arch_elf.h 
b/bsd-user/mips64/target_arch_elf.h
new file mode 100644
index 0000000..ca0da03
--- /dev/null
+++ b/bsd-user/mips64/target_arch_elf.h
@@ -0,0 +1,36 @@
+/*
+ *  mips64 ELF definitions
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_ELF_H_
+#define _TARGET_ARCH_ELF_H_
+
+#define elf_check_arch(x) ( (x) == EM_MIPS )
+#define ELF_START_MMAP 0x2aaaaab000ULL
+#define ELF_CLASS   ELFCLASS64
+
+#ifdef TARGET_WORDS_BIGENDIAN
+#define ELF_DATA        ELFDATA2MSB
+#else
+#define ELF_DATA        ELFDATA2LSB
+#endif
+#define ELF_ARCH    EM_MIPS
+
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE        4096
+
+#endif /* _TARGET_ARCH_ELF_H_ */
diff --git a/bsd-user/mips64/target_arch_thread.h 
b/bsd-user/mips64/target_arch_thread.h
new file mode 100644
index 0000000..7fcd866
--- /dev/null
+++ b/bsd-user/mips64/target_arch_thread.h
@@ -0,0 +1,54 @@
+/*
+ *  mips64 thread support
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _MIPS64_ARCH_THREAD_H_
+#define _MIPS64_ARCH_THREAD_H_
+
+/* Compare to mips/mips/vm_machdep.c cpu_set_upcall_kse() */
+static inline void target_thread_set_upcall(CPUMIPSState *regs, abi_ulong 
entry,
+    abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size)
+{
+    abi_ulong sp;
+
+    /*
+     * At the point where a function is called, sp must be 8
+     * byte aligned[for compatibility with 64-bit CPUs]
+     * in ``See MIPS Run'' by D. Sweetman, p. 269
+     * align stack
+     */
+    sp = ((stack_base + stack_size) & ~0x7) - TARGET_CALLFRAME_SIZ;
+
+    /* t9 = pc = start function entry */
+    regs->active_tc.gpr[25] = regs->active_tc.PC = entry;
+    /* a0 = arg */
+    regs->active_tc.gpr[4] = arg;
+    /* sp = top of the stack */
+    regs->active_tc.gpr[29] = sp;
+}
+
+static inline void target_thread_init(struct target_pt_regs *regs,
+        struct image_info *infop)
+{
+    regs->cp0_status = 2 << CP0St_KSU;
+    regs->regs[25] = regs->cp0_epc = infop->entry & ~3;  /* t9/pc = entry */
+    regs->regs[4] = regs->regs[29] = infop->start_stack; /* a0/sp = stack */
+    regs->regs[5] = regs->regs[6] = 0;                   /* a1/a2 = 0 */
+    regs->regs[7] = TARGET_PS_STRINGS;                   /* a3 = ps_strings */
+}
+
+#endif /* !_MIPS64_ARCH_THREAD_H_ */
diff --git a/bsd-user/netbsd/target_os_elf.h b/bsd-user/netbsd/target_os_elf.h
new file mode 100644
index 0000000..bf663d2
--- /dev/null
+++ b/bsd-user/netbsd/target_os_elf.h
@@ -0,0 +1,226 @@
+/*
+ *  netbsd ELF definitions
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_OS_ELF_H_
+#define _TARGET_OS_ELF_H_
+
+#include "target_arch_elf.h"
+#include "elf.h"
+
+/* from personality.h */
+
+/*
+ * Flags for bug emulation.
+ *
+ * These occupy the top three bytes.
+ */
+enum {
+        ADDR_NO_RANDOMIZE =     0x0040000,      /* disable randomization of VA
+                                                   space */
+        FDPIC_FUNCPTRS =        0x0080000,      /* userspace function ptrs
+                                                   point to descriptors
+                                                   (signal handling) */
+        MMAP_PAGE_ZERO =        0x0100000,
+        ADDR_COMPAT_LAYOUT =    0x0200000,
+        READ_IMPLIES_EXEC =     0x0400000,
+        ADDR_LIMIT_32BIT =      0x0800000,
+        SHORT_INODE =           0x1000000,
+        WHOLE_SECONDS =         0x2000000,
+        STICKY_TIMEOUTS =       0x4000000,
+        ADDR_LIMIT_3GB =        0x8000000,
+};
+
+/*
+ * Personality types.
+ *
+ * These go in the low byte.  Avoid using the top bit, it will
+ * conflict with error returns.
+ */
+enum {
+        PER_LINUX =             0x0000,
+        PER_LINUX_32BIT =       0x0000 | ADDR_LIMIT_32BIT,
+        PER_LINUX_FDPIC =       0x0000 | FDPIC_FUNCPTRS,
+        PER_SVR4 =              0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
+        PER_SVR3 =              0x0002 | STICKY_TIMEOUTS | SHORT_INODE,
+        PER_SCOSVR3 =           0x0003 | STICKY_TIMEOUTS |
+                                         WHOLE_SECONDS | SHORT_INODE,
+        PER_OSR5 =              0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS,
+        PER_WYSEV386 =          0x0004 | STICKY_TIMEOUTS | SHORT_INODE,
+        PER_ISCR4 =             0x0005 | STICKY_TIMEOUTS,
+        PER_BSD =               0x0006,
+        PER_SUNOS =             0x0006 | STICKY_TIMEOUTS,
+        PER_XENIX =             0x0007 | STICKY_TIMEOUTS | SHORT_INODE,
+        PER_LINUX32 =           0x0008,
+        PER_LINUX32_3GB =       0x0008 | ADDR_LIMIT_3GB,
+        PER_IRIX32 =            0x0009 | STICKY_TIMEOUTS,/* IRIX5 32-bit */
+        PER_IRIXN32 =           0x000a | STICKY_TIMEOUTS,/* IRIX6 new 32-bit */
+        PER_IRIX64 =            0x000b | STICKY_TIMEOUTS,/* IRIX6 64-bit */
+        PER_RISCOS =            0x000c,
+        PER_SOLARIS =           0x000d | STICKY_TIMEOUTS,
+        PER_UW7 =               0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
+        PER_OSF4 =              0x000f,                  /* OSF/1 v4 */
+        PER_HPUX =              0x0010,
+        PER_MASK =              0x00ff,
+};
+
+/*
+ * Return the base personality without flags.
+ */
+#define personality(pers)       (pers & PER_MASK)
+
+/* this flag is uneffective under linux too, should be deleted */
+#ifndef MAP_DENYWRITE
+#define MAP_DENYWRITE 0
+#endif
+
+/* should probably go in elf.h */
+#ifndef ELIBBAD
+#define ELIBBAD 80
+#endif
+
+#ifndef ELF_PLATFORM
+#define ELF_PLATFORM (NULL)
+#endif
+
+#ifndef ELF_HWCAP
+#define ELF_HWCAP 0
+#endif
+
+#ifdef TARGET_ABI32
+#undef ELF_CLASS
+#define ELF_CLASS ELFCLASS32
+#undef bswaptls
+#define bswaptls(ptr) bswap32s(ptr)
+#endif
+
+struct exec
+{
+  unsigned int a_info;   /* Use macros N_MAGIC, etc for access */
+  unsigned int a_text;   /* length of text, in bytes */
+  unsigned int a_data;   /* length of data, in bytes */
+  unsigned int a_bss;    /* length of uninitialized data area, in bytes */
+  unsigned int a_syms;   /* length of symbol table data in file, in bytes */
+  unsigned int a_entry;  /* start address */
+  unsigned int a_trsize; /* length of relocation info for text, in bytes */
+  unsigned int a_drsize; /* length of relocation info for data, in bytes */
+};
+
+
+#define N_MAGIC(exec) ((exec).a_info & 0xffff)
+#define OMAGIC 0407
+#define NMAGIC 0410
+#define ZMAGIC 0413
+#define QMAGIC 0314
+
+/* max code+data+bss space allocated to elf interpreter */
+#define INTERP_MAP_SIZE (32 * 1024 * 1024)
+
+/* max code+data+bss+brk space allocated to ET_DYN executables */
+#define ET_DYN_MAP_SIZE (128 * 1024 * 1024)
+
+/* Necessary parameters */
+#define TARGET_ELF_EXEC_PAGESIZE TARGET_PAGE_SIZE
+#define TARGET_ELF_PAGESTART(_v) ((_v) & \
+        ~(unsigned long)(TARGET_ELF_EXEC_PAGESIZE-1))
+#define TARGET_ELF_PAGEOFFSET(_v) ((_v) & (TARGET_ELF_EXEC_PAGESIZE-1))
+
+#define INTERPRETER_NONE 0
+#define INTERPRETER_AOUT 1
+#define INTERPRETER_ELF 2
+
+#define DLINFO_ITEMS 12
+
+static abi_ulong target_create_elf_tables(abi_ulong p, int argc, int envc,
+                                   struct elfhdr * exec,
+                                   abi_ulong load_addr,
+                                   abi_ulong load_bias,
+                                   abi_ulong interp_load_addr, int ibcs,
+                                   struct image_info *info)
+{
+        abi_ulong sp;
+        int size;
+        abi_ulong u_platform;
+        const char *k_platform;
+        const int n = sizeof(elf_addr_t);
+
+        sp = p;
+        u_platform = 0;
+        k_platform = ELF_PLATFORM;
+        if (k_platform) {
+            size_t len = strlen(k_platform) + 1;
+            sp -= (len + n - 1) & ~(n - 1);
+            u_platform = sp;
+            /* FIXME - check return value of memcpy_to_target() for failure */
+            memcpy_to_target(sp, k_platform, len);
+        }
+        /*
+         * Force 16 byte _final_ alignment here for generality.
+         */
+        sp = sp &~ (abi_ulong)15;
+        size = (DLINFO_ITEMS + 1) * 2;
+        if (k_platform)
+          size += 2;
+#ifdef DLINFO_ARCH_ITEMS
+        size += DLINFO_ARCH_ITEMS * 2;
+#endif
+        size += envc + argc + 2;
+        size += (!ibcs ? 3 : 1);        /* argc itself */
+        size *= n;
+        if (size & 15)
+            sp -= 16 - (size & 15);
+
+        /* This is correct because Linux defines
+         * elf_addr_t as Elf32_Off / Elf64_Off
+         */
+#define NEW_AUX_ENT(id, val) do {               \
+            sp -= n; put_user_ual(val, sp);     \
+            sp -= n; put_user_ual(id, sp);      \
+          } while(0)
+
+        NEW_AUX_ENT (AT_NULL, 0);
+
+        /* There must be exactly DLINFO_ITEMS entries here.  */
+        NEW_AUX_ENT(AT_PHDR, (abi_ulong)(load_addr + exec->e_phoff));
+        NEW_AUX_ENT(AT_PHENT, (abi_ulong)(sizeof (struct elf_phdr)));
+        NEW_AUX_ENT(AT_PHNUM, (abi_ulong)(exec->e_phnum));
+        NEW_AUX_ENT(AT_PAGESZ, (abi_ulong)(TARGET_PAGE_SIZE));
+        NEW_AUX_ENT(AT_BASE, (abi_ulong)(interp_load_addr));
+        NEW_AUX_ENT(AT_FLAGS, (abi_ulong)0);
+        NEW_AUX_ENT(AT_ENTRY, load_bias + exec->e_entry);
+        NEW_AUX_ENT(AT_UID, (abi_ulong) getuid());
+        NEW_AUX_ENT(AT_EUID, (abi_ulong) geteuid());
+        NEW_AUX_ENT(AT_GID, (abi_ulong) getgid());
+        NEW_AUX_ENT(AT_EGID, (abi_ulong) getegid());
+        NEW_AUX_ENT(AT_HWCAP, (abi_ulong) ELF_HWCAP);
+        NEW_AUX_ENT(AT_CLKTCK, (abi_ulong) sysconf(_SC_CLK_TCK));
+        if (k_platform)
+            NEW_AUX_ENT(AT_PLATFORM, u_platform);
+#ifdef ARCH_DLINFO
+        /*
+         * ARCH_DLINFO must come last so platform specific code can enforce
+         * special alignment requirements on the AUXV if necessary (eg. PPC).
+         */
+        ARCH_DLINFO;
+#endif
+#undef NEW_AUX_ENT
+
+        sp = loader_build_argptr(envc, argc, sp, p, !ibcs);
+        return sp;
+}
+
+#endif /* _TARGET_OS_ELF_H_ */
diff --git a/bsd-user/netbsd/target_os_thread.h 
b/bsd-user/netbsd/target_os_thread.h
new file mode 100644
index 0000000..519aad8
--- /dev/null
+++ b/bsd-user/netbsd/target_os_thread.h
@@ -0,0 +1,6 @@
+#ifndef _TARGET_OS_THREAD_H_
+#define _TARGET_OS_THREAD_H_
+
+#include "target_arch_thread.h"
+
+#endif /* !_TARGET_OS_THREAD_H_ */
diff --git a/bsd-user/openbsd/target_os_elf.h b/bsd-user/openbsd/target_os_elf.h
new file mode 100644
index 0000000..978d944
--- /dev/null
+++ b/bsd-user/openbsd/target_os_elf.h
@@ -0,0 +1,226 @@
+/*
+ *  openbsd ELF definitions
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_OS_ELF_H_
+#define _TARGET_OS_ELF_H_
+
+#include "target_arch_elf.h"
+#include "elf.h"
+
+/* from personality.h */
+
+/*
+ * Flags for bug emulation.
+ *
+ * These occupy the top three bytes.
+ */
+enum {
+        ADDR_NO_RANDOMIZE =     0x0040000,      /* disable randomization of VA
+                                                   space */
+        FDPIC_FUNCPTRS =        0x0080000,      /* userspace function ptrs
+                                                   point to descriptors
+                                                   (signal handling) */
+        MMAP_PAGE_ZERO =        0x0100000,
+        ADDR_COMPAT_LAYOUT =    0x0200000,
+        READ_IMPLIES_EXEC =     0x0400000,
+        ADDR_LIMIT_32BIT =      0x0800000,
+        SHORT_INODE =           0x1000000,
+        WHOLE_SECONDS =         0x2000000,
+        STICKY_TIMEOUTS =       0x4000000,
+        ADDR_LIMIT_3GB =        0x8000000,
+};
+
+/*
+ * Personality types.
+ *
+ * These go in the low byte.  Avoid using the top bit, it will
+ * conflict with error returns.
+ */
+enum {
+        PER_LINUX =             0x0000,
+        PER_LINUX_32BIT =       0x0000 | ADDR_LIMIT_32BIT,
+        PER_LINUX_FDPIC =       0x0000 | FDPIC_FUNCPTRS,
+        PER_SVR4 =              0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
+        PER_SVR3 =              0x0002 | STICKY_TIMEOUTS | SHORT_INODE,
+        PER_SCOSVR3 =           0x0003 | STICKY_TIMEOUTS |
+                                         WHOLE_SECONDS | SHORT_INODE,
+        PER_OSR5 =              0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS,
+        PER_WYSEV386 =          0x0004 | STICKY_TIMEOUTS | SHORT_INODE,
+        PER_ISCR4 =             0x0005 | STICKY_TIMEOUTS,
+        PER_BSD =               0x0006,
+        PER_SUNOS =             0x0006 | STICKY_TIMEOUTS,
+        PER_XENIX =             0x0007 | STICKY_TIMEOUTS | SHORT_INODE,
+        PER_LINUX32 =           0x0008,
+        PER_LINUX32_3GB =       0x0008 | ADDR_LIMIT_3GB,
+        PER_IRIX32 =            0x0009 | STICKY_TIMEOUTS,/* IRIX5 32-bit */
+        PER_IRIXN32 =           0x000a | STICKY_TIMEOUTS,/* IRIX6 new 32-bit */
+        PER_IRIX64 =            0x000b | STICKY_TIMEOUTS,/* IRIX6 64-bit */
+        PER_RISCOS =            0x000c,
+        PER_SOLARIS =           0x000d | STICKY_TIMEOUTS,
+        PER_UW7 =               0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
+        PER_OSF4 =              0x000f,                  /* OSF/1 v4 */
+        PER_HPUX =              0x0010,
+        PER_MASK =              0x00ff,
+};
+
+/*
+ * Return the base personality without flags.
+ */
+#define personality(pers)       (pers & PER_MASK)
+
+/* this flag is uneffective under linux too, should be deleted */
+#ifndef MAP_DENYWRITE
+#define MAP_DENYWRITE 0
+#endif
+
+/* should probably go in elf.h */
+#ifndef ELIBBAD
+#define ELIBBAD 80
+#endif
+
+#ifndef ELF_PLATFORM
+#define ELF_PLATFORM (NULL)
+#endif
+
+#ifndef ELF_HWCAP
+#define ELF_HWCAP 0
+#endif
+
+#ifdef TARGET_ABI32
+#undef ELF_CLASS
+#define ELF_CLASS ELFCLASS32
+#undef bswaptls
+#define bswaptls(ptr) bswap32s(ptr)
+#endif
+
+struct exec
+{
+  unsigned int a_info;   /* Use macros N_MAGIC, etc for access */
+  unsigned int a_text;   /* length of text, in bytes */
+  unsigned int a_data;   /* length of data, in bytes */
+  unsigned int a_bss;    /* length of uninitialized data area, in bytes */
+  unsigned int a_syms;   /* length of symbol table data in file, in bytes */
+  unsigned int a_entry;  /* start address */
+  unsigned int a_trsize; /* length of relocation info for text, in bytes */
+  unsigned int a_drsize; /* length of relocation info for data, in bytes */
+};
+
+
+#define N_MAGIC(exec) ((exec).a_info & 0xffff)
+#define OMAGIC 0407
+#define NMAGIC 0410
+#define ZMAGIC 0413
+#define QMAGIC 0314
+
+/* max code+data+bss space allocated to elf interpreter */
+#define INTERP_MAP_SIZE (32 * 1024 * 1024)
+
+/* max code+data+bss+brk space allocated to ET_DYN executables */
+#define ET_DYN_MAP_SIZE (128 * 1024 * 1024)
+
+/* Necessary parameters */
+#define TARGET_ELF_EXEC_PAGESIZE TARGET_PAGE_SIZE
+#define TARGET_ELF_PAGESTART(_v) ((_v) & \
+        ~(unsigned long)(TARGET_ELF_EXEC_PAGESIZE-1))
+#define TARGET_ELF_PAGEOFFSET(_v) ((_v) & (TARGET_ELF_EXEC_PAGESIZE-1))
+
+#define INTERPRETER_NONE 0
+#define INTERPRETER_AOUT 1
+#define INTERPRETER_ELF 2
+
+#define DLINFO_ITEMS 12
+
+static abi_ulong target_create_elf_tables(abi_ulong p, int argc, int envc,
+                                   struct elfhdr * exec,
+                                   abi_ulong load_addr,
+                                   abi_ulong load_bias,
+                                   abi_ulong interp_load_addr, int ibcs,
+                                   struct image_info *info)
+{
+        abi_ulong sp;
+        int size;
+        abi_ulong u_platform;
+        const char *k_platform;
+        const int n = sizeof(elf_addr_t);
+
+        sp = p;
+        u_platform = 0;
+        k_platform = ELF_PLATFORM;
+        if (k_platform) {
+            size_t len = strlen(k_platform) + 1;
+            sp -= (len + n - 1) & ~(n - 1);
+            u_platform = sp;
+            /* FIXME - check return value of memcpy_to_target() for failure */
+            memcpy_to_target(sp, k_platform, len);
+        }
+        /*
+         * Force 16 byte _final_ alignment here for generality.
+         */
+        sp = sp &~ (abi_ulong)15;
+        size = (DLINFO_ITEMS + 1) * 2;
+        if (k_platform)
+          size += 2;
+#ifdef DLINFO_ARCH_ITEMS
+        size += DLINFO_ARCH_ITEMS * 2;
+#endif
+        size += envc + argc + 2;
+        size += (!ibcs ? 3 : 1);        /* argc itself */
+        size *= n;
+        if (size & 15)
+            sp -= 16 - (size & 15);
+
+        /* This is correct because Linux defines
+         * elf_addr_t as Elf32_Off / Elf64_Off
+         */
+#define NEW_AUX_ENT(id, val) do {               \
+            sp -= n; put_user_ual(val, sp);     \
+            sp -= n; put_user_ual(id, sp);      \
+          } while(0)
+
+        NEW_AUX_ENT (AT_NULL, 0);
+
+        /* There must be exactly DLINFO_ITEMS entries here.  */
+        NEW_AUX_ENT(AT_PHDR, (abi_ulong)(load_addr + exec->e_phoff));
+        NEW_AUX_ENT(AT_PHENT, (abi_ulong)(sizeof (struct elf_phdr)));
+        NEW_AUX_ENT(AT_PHNUM, (abi_ulong)(exec->e_phnum));
+        NEW_AUX_ENT(AT_PAGESZ, (abi_ulong)(TARGET_PAGE_SIZE));
+        NEW_AUX_ENT(AT_BASE, (abi_ulong)(interp_load_addr));
+        NEW_AUX_ENT(AT_FLAGS, (abi_ulong)0);
+        NEW_AUX_ENT(AT_ENTRY, load_bias + exec->e_entry);
+        NEW_AUX_ENT(AT_UID, (abi_ulong) getuid());
+        NEW_AUX_ENT(AT_EUID, (abi_ulong) geteuid());
+        NEW_AUX_ENT(AT_GID, (abi_ulong) getgid());
+        NEW_AUX_ENT(AT_EGID, (abi_ulong) getegid());
+        NEW_AUX_ENT(AT_HWCAP, (abi_ulong) ELF_HWCAP);
+        NEW_AUX_ENT(AT_CLKTCK, (abi_ulong) sysconf(_SC_CLK_TCK));
+        if (k_platform)
+            NEW_AUX_ENT(AT_PLATFORM, u_platform);
+#ifdef ARCH_DLINFO
+        /*
+         * ARCH_DLINFO must come last so platform specific code can enforce
+         * special alignment requirements on the AUXV if necessary (eg. PPC).
+         */
+        ARCH_DLINFO;
+#endif
+#undef NEW_AUX_ENT
+
+        sp = loader_build_argptr(envc, argc, sp, p, !ibcs);
+        return sp;
+}
+
+#endif /* _TARGET_OS_ELF_H_ */
diff --git a/bsd-user/openbsd/target_os_thread.h 
b/bsd-user/openbsd/target_os_thread.h
new file mode 100644
index 0000000..519aad8
--- /dev/null
+++ b/bsd-user/openbsd/target_os_thread.h
@@ -0,0 +1,6 @@
+#ifndef _TARGET_OS_THREAD_H_
+#define _TARGET_OS_THREAD_H_
+
+#include "target_arch_thread.h"
+
+#endif /* !_TARGET_OS_THREAD_H_ */
diff --git a/bsd-user/sparc/target_arch_elf.h b/bsd-user/sparc/target_arch_elf.h
new file mode 100644
index 0000000..b93e2ed
--- /dev/null
+++ b/bsd-user/sparc/target_arch_elf.h
@@ -0,0 +1,30 @@
+/*
+ *  sparc ELF definitions
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_ELF_H_
+#define _TARGET_ARCH_ELF_H_
+
+#define ELF_START_MMAP 0x80000000
+
+#define elf_check_arch(x) ( (x) == EM_SPARC )
+
+#define ELF_CLASS   ELFCLASS32
+#define ELF_DATA    ELFDATA2MSB
+#define ELF_ARCH    EM_SPARC
+
+#endif /* _TARGET_ARCH_ELF_H_ */
diff --git a/bsd-user/sparc/target_arch_thread.h 
b/bsd-user/sparc/target_arch_thread.h
new file mode 100644
index 0000000..fe607be
--- /dev/null
+++ b/bsd-user/sparc/target_arch_thread.h
@@ -0,0 +1,39 @@
+/*
+ *  sparc thread support
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_THREAD_H_
+#define _TARGET_ARCH_THREAD_H_
+
+/* Compare to vm_machdep.c cpu_set_upcall_kse() */
+static inline void target_thread_set_upcall(CPUSPARCState *regs,
+    abi_ulong entry, abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size)
+{
+    /* XXX */
+}
+
+static inline void target_thread_init(struct target_pt_regs *regs,
+        struct image_info *infop)
+{
+    regs->psr = 0;
+    regs->pc = infop->entry;
+    regs->npc = regs->pc + 4;
+    regs->y = 0;
+    regs->u_regs[14] = infop->start_stack - 16 * 4;
+}
+
+#endif /* !_TARGET_ARCH_THREAD_H_ */
diff --git a/bsd-user/sparc64/target_arch_elf.h 
b/bsd-user/sparc64/target_arch_elf.h
new file mode 100644
index 0000000..f2b8e12
--- /dev/null
+++ b/bsd-user/sparc64/target_arch_elf.h
@@ -0,0 +1,34 @@
+/*
+ *  sparc64 ELF definitions
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_ELF_H_
+#define _TARGET_ARCH_ELF_H_
+
+#define ELF_START_MMAP 0x80000000
+
+#ifndef TARGET_ABI32
+#define elf_check_arch(x) ( (x) == EM_SPARCV9 || (x) == EM_SPARC32PLUS )
+#else
+#define elf_check_arch(x) ( (x) == EM_SPARC32PLUS || (x) == EM_SPARC )
+#endif
+
+#define ELF_CLASS   ELFCLASS64
+#define ELF_DATA    ELFDATA2MSB
+#define ELF_ARCH    EM_SPARCV9
+
+#endif /* _TARGET_ARCH_ELF_H_ */
diff --git a/bsd-user/sparc64/target_arch_thread.h 
b/bsd-user/sparc64/target_arch_thread.h
new file mode 100644
index 0000000..2e5585a
--- /dev/null
+++ b/bsd-user/sparc64/target_arch_thread.h
@@ -0,0 +1,55 @@
+/*
+ *  sparc64 thread support
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_THREAD_H_
+#define _TARGET_ARCH_THREAD_H_
+
+#define STACK_BIAS              2047
+
+/* Compare to vm_machdep.c cpu_set_upcall_kse() */
+static inline void target_thread_set_upcall(CPUSPARCState *regs,
+    abi_ulong entry, abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size)
+{
+    /* XXX */
+}
+
+static inline void target_thread_init(struct target_pt_regs *regs,
+        struct image_info *infop)
+{
+#ifndef TARGET_ABI32
+    regs->tstate = 0;
+#endif
+    regs->pc = infop->entry;
+    regs->npc = regs->pc + 4;
+    regs->y = 0;
+#ifdef TARGET_ABI32
+    regs->u_regs[14] = infop->start_stack - 16 * 4;
+#else
+    if (personality(infop->personality) == PER_LINUX32)
+        regs->u_regs[14] = infop->start_stack - 16 * 4;
+    else {
+        regs->u_regs[14] = infop->start_stack - 16 * 8 - STACK_BIAS;
+        if (bsd_type == target_freebsd) {
+            regs->u_regs[8] = infop->start_stack;
+            regs->u_regs[11] = infop->start_stack;
+        }
+    }
+#endif
+}
+
+#endif /* !_TARGET_ARCH_THREAD_H_ */
diff --git a/bsd-user/syscall_defs.h b/bsd-user/syscall_defs.h
index bd6d276..2b79c35 100644
--- a/bsd-user/syscall_defs.h
+++ b/bsd-user/syscall_defs.h
@@ -703,4 +703,68 @@ struct target_uuid {
     uint8_t     node[TARGET_UUID_NODE_LEN];
 };
 
+
+/*
+ * from personality.h
+ */
+
+/*
+ * Flags for bug emulation.
+ *
+ * These occupy the top three bytes.
+ */
+enum {
+        ADDR_NO_RANDOMIZE =     0x0040000,      /* disable randomization of VA
+                                                   space */
+        FDPIC_FUNCPTRS =        0x0080000,      /* userspace function ptrs
+                                                   point to descriptors
+                                                   (signal handling) */
+        MMAP_PAGE_ZERO =        0x0100000,
+        ADDR_COMPAT_LAYOUT =    0x0200000,
+        READ_IMPLIES_EXEC =     0x0400000,
+        ADDR_LIMIT_32BIT =      0x0800000,
+        SHORT_INODE =           0x1000000,
+        WHOLE_SECONDS =         0x2000000,
+        STICKY_TIMEOUTS =       0x4000000,
+        ADDR_LIMIT_3GB =        0x8000000,
+};
+
+/*
+ * Personality types.
+ *
+ * These go in the low byte.  Avoid using the top bit, it will
+ * conflict with error returns.
+ */
+enum {
+        PER_LINUX =             0x0000,
+        PER_LINUX_32BIT =       0x0000 | ADDR_LIMIT_32BIT,
+        PER_LINUX_FDPIC =       0x0000 | FDPIC_FUNCPTRS,
+        PER_SVR4 =              0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
+        PER_SVR3 =              0x0002 | STICKY_TIMEOUTS | SHORT_INODE,
+        PER_SCOSVR3 =           0x0003 | STICKY_TIMEOUTS |
+                                         WHOLE_SECONDS | SHORT_INODE,
+        PER_OSR5 =              0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS,
+        PER_WYSEV386 =          0x0004 | STICKY_TIMEOUTS | SHORT_INODE,
+        PER_ISCR4 =             0x0005 | STICKY_TIMEOUTS,
+        PER_BSD =               0x0006,
+        PER_SUNOS =             0x0006 | STICKY_TIMEOUTS,
+        PER_XENIX =             0x0007 | STICKY_TIMEOUTS | SHORT_INODE,
+        PER_LINUX32 =           0x0008,
+        PER_LINUX32_3GB =       0x0008 | ADDR_LIMIT_3GB,
+        PER_IRIX32 =            0x0009 | STICKY_TIMEOUTS,/* IRIX5 32-bit */
+        PER_IRIXN32 =           0x000a | STICKY_TIMEOUTS,/* IRIX6 new 32-bit */
+        PER_IRIX64 =            0x000b | STICKY_TIMEOUTS,/* IRIX6 64-bit */
+        PER_RISCOS =            0x000c,
+        PER_SOLARIS =           0x000d | STICKY_TIMEOUTS,
+        PER_UW7 =               0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
+        PER_OSF4 =              0x000f,                  /* OSF/1 v4 */
+        PER_HPUX =              0x0010,
+        PER_MASK =              0x00ff,
+};
+
+/*
+ * Return the base personality without flags.
+ */
+#define personality(pers)       (pers & PER_MASK)
+
 #endif /* ! _SYSCALL_DEFS_H_ */
diff --git a/bsd-user/x86_64/target_arch_elf.h 
b/bsd-user/x86_64/target_arch_elf.h
new file mode 100644
index 0000000..bc7c6a1
--- /dev/null
+++ b/bsd-user/x86_64/target_arch_elf.h
@@ -0,0 +1,55 @@
+/*
+ *  x86_64 ELF definitions
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_ELF_H_
+#define _TARGET_ARCH_ELF_H_
+
+#define ELF_START_MMAP 0x2aaaaab000ULL
+#define elf_check_arch(x) ( ((x) == ELF_ARCH) )
+
+#define ELF_CLASS      ELFCLASS64
+#define ELF_DATA       ELFDATA2LSB
+#define ELF_ARCH       EM_X86_64
+
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE       4096
+
+/* XXX */
+#ifndef __FreeBSD__
+#define ELF_PLATFORM target_elf_get_platform()
+
+static const char *target_elf_get_platform(void)
+{
+    static char elf_platform[] = "i386";
+    int family = (thread_env->cpuid_version >> 8) & 0xff;
+    if (family > 6)
+        family = 6;
+    if (family >= 3)
+        elf_platform[1] = '0' + family;
+    return elf_platform;
+}
+
+#define ELF_HWCAP target_elf_get_hwcap()
+
+static uint32_t target_elf_get_hwcap(void)
+{
+    return thread_env->features[FEAT_1_EDX];
+}
+#endif /* ! __FreeBSD__ */
+
+#endif /* _TARGET_ARCH_ELF_H_ */
diff --git a/bsd-user/x86_64/target_arch_thread.h 
b/bsd-user/x86_64/target_arch_thread.h
new file mode 100644
index 0000000..d105e43
--- /dev/null
+++ b/bsd-user/x86_64/target_arch_thread.h
@@ -0,0 +1,40 @@
+/*
+ *  x86_64 thread support
+ *
+ *  Copyright (c) 2013 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_THREAD_H_
+#define _TARGET_ARCH_THREAD_H_
+
+/* Compare to vm_machdep.c cpu_set_upcall_kse() */
+static inline void target_thread_set_upcall(CPUX86State *regs, abi_ulong entry,
+    abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size)
+{
+    /* XXX */
+}
+
+static inline void target_thread_init(struct target_pt_regs *regs,
+    struct image_info *infop)
+{
+    regs->rax = 0;
+    regs->rsp = infop->start_stack;
+    regs->rip = infop->entry;
+    if (bsd_type == target_freebsd) {
+        regs->rdi = infop->start_stack;
+    }
+}
+
+#endif /* !_TARGET_ARCH_THREAD_H_ */
-- 
1.7.8
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[Qemu-devel] [PATCH 03/18] bsd-user: move OS/arch dependent code for strace into separate directories, (continued)
- [Qemu-devel] [PATCH 03/18] bsd-user: move OS/arch dependent code for strace into separate directories, Stacey Son, 2013/10/16
- [Qemu-devel] [PATCH 02/18] bsd-user: add HOST_ABI_DIR for the various *BSD dependent code., Stacey Son, 2013/10/16
- [Qemu-devel] [PATCH 06/18] bsd-user: add support for freebsd time related system calls, Stacey Son, 2013/10/16
- [Qemu-devel] [PATCH 05/18] bsd-user: move target arch and host OS dependent code out of syscall.c, Stacey Son, 2013/10/16
- [Qemu-devel] [PATCH 09/18] bsd-user: add support for freebsd process related system calls, Stacey Son, 2013/10/16
- [Qemu-devel] [PATCH 10/18] bsd-user: add support for file system related system calls, Stacey Son, 2013/10/16
- [Qemu-devel] [PATCH 04/18] bsd-user: move target arch and host OS dependent code out of main.c, Stacey Son, 2013/10/16
  - Re: [Qemu-devel] [PATCH 04/18] bsd-user: move target arch and host OSdependent code out of main.cc, Alex Bennée, 2013/10/16
    - Re: [Qemu-devel] [PATCH 04/18] bsd-user: move target arch and host OSdependent code out of main.cc, Stacey Son, 2013/10/16
- [Qemu-devel] [PATCH 11/18] bsd-user: add support for stat, directory, and file control related system calls, Stacey Son, 2013/10/16
- [Qemu-devel] [PATCH 08/18] bsd-user: move target arch and host OS dependent code out of elfload.c, Stacey Son <=
- [Qemu-devel] [PATCH 12/18] bsd-user: add support for memory management related system calls, Stacey Son, 2013/10/16
- [Qemu-devel] [PATCH 07/18] bsd-user: add support for freebsd signal related system calls, Stacey Son, 2013/10/16
- [Qemu-devel] [PATCH 13/18] bsd-user: add support for socket related system calls, Stacey Son, 2013/10/16
- [Qemu-devel] [PATCH 15/18] bsd-user: add support for the ioctl system call, Stacey Son, 2013/10/16
- [Qemu-devel] [PATCH 14/18] bsd-user: add support for thread related system calls, Stacey Son, 2013/10/16
- [Qemu-devel] [PATCH 17/18] bsd-user: add support for miscellaneous system calls, Stacey Son, 2013/10/16
- [Qemu-devel] [PATCH 16/18] bsd-user: add support for extended attribute and ACL related syscalls, Stacey Son, 2013/10/16
- [Qemu-devel] [PATCH 18/18] bsd-user: add arm, mips and mips64 options to configure target-list, Stacey Son, 2013/10/16
  - Re: [Qemu-devel] [PATCH 18/18] bsd-user: add arm, mips and mips64 options to configure target-listt, Alex Bennée, 2013/10/16
    - Re: [Qemu-devel] [PATCH 18/18] bsd-user: add arm, mips and mips64 options to configure target-listt, Stacey Son, 2013/10/16
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