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-rw-r--r--bsd-user/freebsd/host-os.h25
-rw-r--r--bsd-user/freebsd/target_os_elf.h137
-rw-r--r--bsd-user/freebsd/target_os_siginfo.h145
-rw-r--r--bsd-user/freebsd/target_os_signal.h78
-rw-r--r--bsd-user/freebsd/target_os_stack.h181
-rw-r--r--bsd-user/freebsd/target_os_thread.h25
-rw-r--r--bsd-user/freebsd/target_os_user.h427
-rw-r--r--bsd-user/freebsd/target_os_vmparam.h38
8 files changed, 1056 insertions, 0 deletions
diff --git a/bsd-user/freebsd/host-os.h b/bsd-user/freebsd/host-os.h
new file mode 100644
index 0000000000..dfb8344b7b
--- /dev/null
+++ b/bsd-user/freebsd/host-os.h
@@ -0,0 +1,25 @@
+/*
+ *  FreeBSD host dependent code and 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 _HOST_OS_H_
+#define _HOST_OS_H_
+
+#define HOST_DEFAULT_BSD_TYPE target_freebsd
+
+#endif /*!_HOST_OS_H_ */
diff --git a/bsd-user/freebsd/target_os_elf.h b/bsd-user/freebsd/target_os_elf.h
new file mode 100644
index 0000000000..2d03a883aa
--- /dev/null
+++ b/bsd-user/freebsd/target_os_elf.h
@@ -0,0 +1,137 @@
+/*
+ *  freebsd ELF definitions
+ *
+ *  Copyright (c) 2013-15 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"
+
+#define bsd_get_ncpu() 1 /* until we pull in bsd-proc.[hc] */
+
+/* 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
+
+/* XXX Look at the other conflicting AT_* values. */
+#define FREEBSD_AT_NCPUS     19
+#define FREEBSD_AT_HWCAP     25
+#define FREEBSD_AT_HWCAP2    26
+
+#ifdef TARGET_ABI32
+#undef ELF_CLASS
+#define ELF_CLASS ELFCLASS32
+#undef bswaptls
+#define bswaptls(ptr) bswap32s(ptr)
+#endif
+
+/* 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 DLINFO_ITEMS 14
+
+static abi_ulong target_create_elf_tables(abi_ulong p, int argc, int envc,
+                                          abi_ulong stringp,
+                                          struct elfhdr *exec,
+                                          abi_ulong load_addr,
+                                          abi_ulong load_bias,
+                                          abi_ulong interp_load_addr,
+                                          struct image_info *info)
+{
+        abi_ulong features, sp;
+        int size;
+        const int n = sizeof(elf_addr_t);
+
+        target_auxents_sz = 0;
+        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 += 1;                      /* argc itself */
+        size *= n;
+        if (size & 15) {
+            sp -= 16 - (size & 15);
+        }
+
+        /*
+         * FreeBSD 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);      \
+            target_auxents_sz += 2 * n;         \
+          } 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(FREEBSD_AT_NCPUS, (abi_ulong)bsd_get_ncpu());
+        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());
+        features = ELF_HWCAP;
+        NEW_AUX_ENT(FREEBSD_AT_HWCAP, features);
+        target_auxents = sp; /* Note where the aux entries are in the target */
+#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, stringp);
+        return sp;
+}
+
+#endif /* _TARGET_OS_ELF_H_ */
diff --git a/bsd-user/freebsd/target_os_siginfo.h b/bsd-user/freebsd/target_os_siginfo.h
new file mode 100644
index 0000000000..84944faa4d
--- /dev/null
+++ b/bsd-user/freebsd/target_os_siginfo.h
@@ -0,0 +1,145 @@
+/*
+ *  FreeBSD siginfo related 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_SIGINFO_H_
+#define _TARGET_OS_SIGINFO_H_
+
+#define TARGET_NSIG         128
+#define TARGET_NSIG_BPW     (sizeof(uint32_t) * 8)
+#define TARGET_NSIG_WORDS   (TARGET_NSIG / TARGET_NSIG_BPW)
+
+/* this struct defines a stack used during syscall handling */
+typedef struct target_sigaltstack {
+    abi_long    ss_sp;
+    abi_ulong   ss_size;
+    abi_long    ss_flags;
+} target_stack_t;
+
+typedef struct {
+    uint32_t __bits[TARGET_NSIG_WORDS];
+} target_sigset_t;
+
+struct target_sigaction {
+    abi_ulong   _sa_handler;
+    int32_t     sa_flags;
+    target_sigset_t sa_mask;
+};
+
+typedef union target_sigval {
+    int32_t sival_int;
+    abi_ulong sival_ptr;
+    int32_t sigval_int;
+    abi_ulong sigval_ptr;
+} target_sigval_t;
+
+typedef struct target_siginfo {
+    int32_t si_signo;   /* signal number */
+    int32_t si_errno;   /* errno association */
+    int32_t si_code;    /* signal code */
+    int32_t si_pid;     /* sending process */
+    int32_t si_uid;     /* sender's ruid */
+    int32_t si_status;  /* exit value */
+    abi_ulong si_addr;  /* faulting instruction */
+    union target_sigval si_value;   /* signal value */
+    union {
+        struct {
+            int32_t _trapno;    /* machine specific trap code */
+        } _fault;
+
+        /* POSIX.1b timers */
+        struct {
+            int32_t _timerid;
+            int32_t _overrun;
+        } _timer;
+
+        struct {
+            int32_t _mqd;
+        } _mesgp;
+
+        /* SIGPOLL */
+        struct {
+            int _band;  /* POLL_IN, POLL_OUT, POLL_MSG */
+        } _poll;
+
+        struct {
+            abi_long __spare1__;
+            int32_t  __spare2_[7];
+        } __spare__;
+    } _reason;
+} target_siginfo_t;
+
+struct target_sigevent {
+    abi_int sigev_notify;
+    abi_int sigev_signo;
+    target_sigval_t sigev_value;
+    union {
+        abi_int _threadid;
+
+        /*
+         * The kernel (and thus QEMU) never looks at these;
+         * they're only used as part of the ABI between a
+         * userspace program and libc.
+         */
+        struct {
+            abi_ulong _function;
+            abi_ulong _attribute;
+        } _sigev_thread;
+        abi_ushort _kevent_flags;
+        abi_long _pad[8];
+    } _sigev_un;
+};
+
+#define target_si_signo     si_signo
+#define target_si_code      si_code
+#define target_si_errno     si_errno
+#define target_si_addr      si_addr
+
+/* SIGILL si_codes */
+#define TARGET_ILL_ILLOPC   (1) /* Illegal opcode. */
+#define TARGET_ILL_ILLOPN   (2) /* Illegal operand. */
+#define TARGET_ILL_ILLADR   (3) /* Illegal addressing mode. */
+#define TARGET_ILL_ILLTRP   (4) /* Illegal trap. */
+#define TARGET_ILL_PRVOPC   (5) /* Privileged opcode. */
+#define TARGET_ILL_PRVREG   (6) /* Privileged register. */
+#define TARGET_ILL_COPROC   (7) /* Coprocessor error. */
+#define TARGET_ILL_BADSTK   (8) /* Internal stack error. */
+
+/* SIGSEGV si_codes */
+#define TARGET_SEGV_MAPERR  (1) /* address not mapped to object */
+#define TARGET_SEGV_ACCERR  (2) /* invalid permissions for mapped object */
+
+/* SIGTRAP si_codes */
+#define TARGET_TRAP_BRKPT   (1) /* process beakpoint */
+#define TARGET_TRAP_TRACE   (2) /* process trace trap */
+
+/* SIGBUS si_codes */
+#define TARGET_BUS_ADRALN   (1)
+#define TARGET_BUS_ADRERR   (2)
+#define TARGET_BUS_OBJERR   (3)
+
+/* SIGFPE codes */
+#define TARGET_FPE_INTOVF   (1) /* Integer overflow. */
+#define TARGET_FPE_INTDIV   (2) /* Integer divide by zero. */
+#define TARGET_FPE_FLTDIV   (3) /* Floating point divide by zero. */
+#define TARGET_FPE_FLTOVF   (4) /* Floating point overflow. */
+#define TARGET_FPE_FLTUND   (5) /* Floating point underflow. */
+#define TARGET_FPE_FLTRES   (6) /* Floating point inexact result. */
+#define TARGET_FPE_FLTINV   (7) /* Invalid floating point operation. */
+#define TARGET_FPE_FLTSUB   (8) /* Subscript out of range. */
+
+#endif /* !_TARGET_OS_SIGINFO_H_ */
diff --git a/bsd-user/freebsd/target_os_signal.h b/bsd-user/freebsd/target_os_signal.h
new file mode 100644
index 0000000000..3ed454e086
--- /dev/null
+++ b/bsd-user/freebsd/target_os_signal.h
@@ -0,0 +1,78 @@
+#ifndef _TARGET_OS_SIGNAL_H_
+#define _TARGET_OS_SIGNAL_H_
+
+#include "target_os_siginfo.h"
+#include "target_arch_signal.h"
+
+/* Compare to sys/signal.h */
+#define TARGET_SIGHUP  1       /* hangup */
+#define TARGET_SIGINT  2       /* interrupt */
+#define TARGET_SIGQUIT 3       /* quit */
+#define TARGET_SIGILL  4       /* illegal instruction (not reset when caught) */
+#define TARGET_SIGTRAP 5       /* trace trap (not reset when caught) */
+#define TARGET_SIGABRT 6       /* abort() */
+#define TARGET_SIGIOT  SIGABRT /* compatibility */
+#define TARGET_SIGEMT  7       /* EMT instruction */
+#define TARGET_SIGFPE  8       /* floating point exception */
+#define TARGET_SIGKILL 9       /* kill (cannot be caught or ignored) */
+#define TARGET_SIGBUS  10      /* bus error */
+#define TARGET_SIGSEGV 11      /* segmentation violation */
+#define TARGET_SIGSYS  12      /* bad argument to system call */
+#define TARGET_SIGPIPE 13      /* write on a pipe with no one to read it */
+#define TARGET_SIGALRM 14      /* alarm clock */
+#define TARGET_SIGTERM 15      /* software termination signal from kill */
+#define TARGET_SIGURG  16      /* urgent condition on IO channel */
+#define TARGET_SIGSTOP 17      /* sendable stop signal not from tty */
+#define TARGET_SIGTSTP 18      /* stop signal from tty */
+#define TARGET_SIGCONT 19      /* continue a stopped process */
+#define TARGET_SIGCHLD 20      /* to parent on child stop or exit */
+#define TARGET_SIGTTIN 21      /* to readers pgrp upon background tty read */
+#define TARGET_SIGTTOU 22      /* like TTIN for output if(tp->t_local&LTOSTOP)*/
+#define TARGET_SIGIO   23      /* input/output possible signal */
+#define TARGET_SIGXCPU 24      /* exceeded CPU time limit */
+#define TARGET_SIGXFSZ 25      /* exceeded file size limit */
+#define TARGET_SIGVTALRM 26    /* virtual time alarm */
+#define TARGET_SIGPROF 27      /* profiling time alarm */
+#define TARGET_SIGWINCH 28     /* window size changes */
+#define TARGET_SIGINFO  29     /* information request */
+#define TARGET_SIGUSR1 30      /* user defined signal 1 */
+#define TARGET_SIGUSR2 31      /* user defined signal 2 */
+#define TARGET_SIGTHR 32       /* reserved by thread library */
+#define TARGET_SIGLWP SIGTHR   /* compatibility */
+#define TARGET_SIGLIBRT 33     /* reserved by the real-time library */
+#define TARGET_SIGRTMIN 65
+#define TARGET_SIGRTMAX 126
+
+/*
+ * Language spec says we must list exactly one parameter, even though we
+ * actually supply three.  Ugh!
+ */
+#define TARGET_SIG_DFL      ((abi_long)0)   /* default signal handling */
+#define TARGET_SIG_IGN      ((abi_long)1)   /* ignore signal */
+#define TARGET_SIG_ERR      ((abi_long)-1)  /* error return from signal */
+
+#define TARGET_SA_ONSTACK   0x0001  /* take signal on signal stack */
+#define TARGET_SA_RESTART   0x0002  /* restart system on signal return */
+#define TARGET_SA_RESETHAND 0x0004  /* reset to SIG_DFL when taking signal */
+#define TARGET_SA_NODEFER   0x0010  /* don't mask the signal we're delivering */
+#define TARGET_SA_NOCLDWAIT 0x0020  /* don't create zombies (assign to pid 1) */
+#define TARGET_SA_USERTRAMP 0x0100  /* do not bounce off kernel's sigtramp */
+#define TARGET_SA_NOCLDSTOP 0x0008  /* do not generate SIGCHLD on child stop */
+#define TARGET_SA_SIGINFO   0x0040  /* generate siginfo_t */
+
+/*
+ * Flags for sigprocmask:
+ */
+#define TARGET_SIG_BLOCK        1   /* block specified signal set */
+#define TARGET_SIG_UNBLOCK      2   /* unblock specified signal set */
+#define TARGET_SIG_SETMASK      3   /* set specified signal set */
+
+#define TARGET_BADSIG           SIG_ERR
+
+/*
+ * sigaltstack control
+ */
+#define TARGET_SS_ONSTACK 0x0001  /* take signals on alternate stack */
+#define TARGET_SS_DISABLE 0x0004  /* disable taking signals on alternate stack*/
+
+#endif /* !_TARGET_OS_SIGNAL_H_ */
diff --git a/bsd-user/freebsd/target_os_stack.h b/bsd-user/freebsd/target_os_stack.h
new file mode 100644
index 0000000000..1bb1a2bf56
--- /dev/null
+++ b/bsd-user/freebsd/target_os_stack.h
@@ -0,0 +1,181 @@
+/*
+ *  FreeBSD setup_initial_stack() implementation.
+ *
+ *  Copyright (c) 2013-14 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_STACK_H_
+#define _TARGET_OS_STACK_H_
+
+#include <sys/param.h>
+#include "target_arch_sigtramp.h"
+#include "qemu/guest-random.h"
+
+/*
+ * The inital FreeBSD stack is as follows:
+ * (see kern/kern_exec.c exec_copyout_strings() )
+ *
+ *  Hi Address -> char **ps_argvstr  (struct ps_strings for ps, w, etc.)
+ *                unsigned ps_nargvstr
+ *                char **ps_envstr
+ *  PS_STRINGS -> unsigned ps_nenvstr
+ *
+ *                machine dependent sigcode (sv_sigcode of size
+ *                                           sv_szsigcode)
+ *
+ *                execpath          (absolute image path for rtld)
+ *
+ *                SSP Canary        (sizeof(long) * 8)
+ *
+ *                page sizes array  (usually sizeof(u_long) )
+ *
+ *  "destp" ->    argv, env strings (up to 262144 bytes)
+ */
+static inline int setup_initial_stack(struct bsd_binprm *bprm,
+        abi_ulong *ret_addr, abi_ulong *stringp)
+{
+    int i;
+    abi_ulong stack_hi_addr;
+    size_t execpath_len, stringspace;
+    abi_ulong destp, argvp, envp, p;
+    struct target_ps_strings ps_strs;
+    char canary[sizeof(abi_long) * 8];
+
+    stack_hi_addr = p = target_stkbas + target_stksiz;
+
+    /* Save some space for ps_strings. */
+    p -= sizeof(struct target_ps_strings);
+
+    /* Add machine depedent sigcode. */
+    p -= TARGET_SZSIGCODE;
+    if (setup_sigtramp(p, (unsigned)offsetof(struct target_sigframe, sf_uc),
+            TARGET_FREEBSD_NR_sigreturn)) {
+        errno = EFAULT;
+        return -1;
+    }
+    if (bprm->fullpath) {
+        execpath_len = strlen(bprm->fullpath) + 1;
+        p -= roundup(execpath_len, sizeof(abi_ulong));
+        if (memcpy_to_target(p, bprm->fullpath, execpath_len)) {
+            errno = EFAULT;
+            return -1;
+        }
+    }
+    /* Add canary for SSP. */
+    qemu_guest_getrandom_nofail(canary, sizeof(canary));
+    p -= roundup(sizeof(canary), sizeof(abi_ulong));
+    if (memcpy_to_target(p, canary, sizeof(canary))) {
+        errno = EFAULT;
+        return -1;
+    }
+    /* Add page sizes array. */
+    p -= sizeof(abi_ulong);
+    if (put_user_ual(TARGET_PAGE_SIZE, p)) {
+        errno = EFAULT;
+        return -1;
+    }
+    /*
+     * Deviate from FreeBSD stack layout: force stack to new page here
+     * so that signal trampoline is not sharing the page with user stack
+     * frames. This is actively harmful in qemu as it marks pages with
+     * code it translated as read-only, which is somewhat problematic
+     * for user trying to use the stack as intended.
+     */
+    p = rounddown(p, TARGET_PAGE_SIZE);
+
+    /* Calculate the string space needed */
+    stringspace = 0;
+    for (i = 0; i < bprm->argc; ++i) {
+        stringspace += strlen(bprm->argv[i]) + 1;
+    }
+    for (i = 0; i < bprm->envc; ++i) {
+        stringspace += strlen(bprm->envp[i]) + 1;
+    }
+    if (stringspace > TARGET_ARG_MAX) {
+        errno = ENOMEM;
+        return -1;
+    }
+    /* Make room for the argv and envp strings */
+    destp = rounddown(p - stringspace, sizeof(abi_ulong));
+    p = argvp = destp - (bprm->argc + bprm->envc + 2) * sizeof(abi_ulong);
+    /* Remember the strings pointer */
+    if (stringp) {
+        *stringp = destp;
+    }
+    /*
+     * Add argv strings.  Note that the argv[] vectors are added by
+     * loader_build_argptr()
+     */
+    /* XXX need to make room for auxargs */
+    ps_strs.ps_argvstr = tswapl(argvp);
+    ps_strs.ps_nargvstr = tswap32(bprm->argc);
+    for (i = 0; i < bprm->argc; ++i) {
+        size_t len = strlen(bprm->argv[i]) + 1;
+
+        if (memcpy_to_target(destp, bprm->argv[i], len)) {
+            errno = EFAULT;
+            return -1;
+        }
+        if (put_user_ual(destp, argvp)) {
+            errno = EFAULT;
+            return -1;
+        }
+        argvp += sizeof(abi_ulong);
+        destp += len;
+    }
+    if (put_user_ual(0, argvp)) {
+        errno = EFAULT;
+        return -1;
+    }
+    /*
+     * Add env strings. Note that the envp[] vectors are added by
+     * loader_build_argptr().
+     */
+    envp = argvp + sizeof(abi_ulong);
+    ps_strs.ps_envstr = tswapl(envp);
+    ps_strs.ps_nenvstr = tswap32(bprm->envc);
+    for (i = 0; i < bprm->envc; ++i) {
+        size_t len = strlen(bprm->envp[i]) + 1;
+
+        if (memcpy_to_target(destp, bprm->envp[i], len)) {
+            errno = EFAULT;
+            return -1;
+        }
+        if (put_user_ual(destp, envp)) {
+            errno = EFAULT;
+            return -1;
+        }
+        envp += sizeof(abi_ulong);
+        destp += len;
+    }
+    if (put_user_ual(0, envp)) {
+        errno = EFAULT;
+        return -1;
+    }
+    if (memcpy_to_target(stack_hi_addr - sizeof(ps_strs), &ps_strs,
+                sizeof(ps_strs))) {
+        errno = EFAULT;
+        return -1;
+    }
+
+    if (ret_addr) {
+        *ret_addr = p;
+    }
+
+    return 0;
+ }
+
+#endif /* !_TARGET_OS_STACK_H_ */
diff --git a/bsd-user/freebsd/target_os_thread.h b/bsd-user/freebsd/target_os_thread.h
new file mode 100644
index 0000000000..77433acdff
--- /dev/null
+++ b/bsd-user/freebsd/target_os_thread.h
@@ -0,0 +1,25 @@
+/*
+ *  FreeBSD thread dependent code and 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_THREAD_H_
+#define _TARGET_OS_THREAD_H_
+
+#include "target_arch_thread.h"
+
+#endif /* !_TARGET_OS_THREAD_H_ */
diff --git a/bsd-user/freebsd/target_os_user.h b/bsd-user/freebsd/target_os_user.h
new file mode 100644
index 0000000000..95b1fa9f99
--- /dev/null
+++ b/bsd-user/freebsd/target_os_user.h
@@ -0,0 +1,427 @@
+/*
+ *  sys/user.h definitions
+ *
+ *  Copyright (c) 2015 Stacey D. Son (sson at FreeBSD)
+ *
+ *  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_USER_H_
+#define _TARGET_OS_USER_H_
+
+/*
+ * from sys/priority.h
+ */
+struct target_priority {
+    uint8_t     pri_class;      /* Scheduling class. */
+    uint8_t     pri_level;      /* Normal priority level. */
+    uint8_t     pri_native;     /* Priority before propogation. */
+    uint8_t     pri_user;       /* User priority based on p_cpu and p_nice. */
+};
+
+/*
+ * sys/caprights.h
+ */
+#define TARGET_CAP_RIGHTS_VERSION  0
+
+typedef struct target_cap_rights {
+    uint64_t    cr_rights[TARGET_CAP_RIGHTS_VERSION + 2];
+} target_cap_rights_t;
+
+/*
+ * From sys/_socketaddr_storage.h
+ *
+ */
+#define TARGET_SS_MAXSIZE     128U
+#define TARGET_SS_ALIGNSIZE   (sizeof(__int64_t))
+#define TARGET_SS_PAD1SIZE    (TARGET_SS_ALIGNSIZE - sizeof(unsigned char) - \
+        sizeof(uint8_t))
+#define TARGET_SS_PAD2SIZE    (TARGET_SS_MAXSIZE - sizeof(unsigned char) - \
+        sizeof(uint8_t) - TARGET_SS_PAD1SIZE - TARGET_SS_ALIGNSIZE)
+
+struct target_sockaddr_storage {
+    unsigned char   ss_len;         /* address length */
+    uint8_t         ss_family;      /* address family */
+    char            __ss_pad1[TARGET_SS_PAD1SIZE];
+    __int64_t       __ss_align;     /* force desired struct alignment */
+    char            __ss_pad2[TARGET_SS_PAD2SIZE];
+};
+
+/*
+ * from sys/user.h
+ */
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1200031
+#define TARGET_KI_NSPARE_INT        2
+#elif defined(__FreeBSD_version) && __FreeBSD_version >= 1100000
+#define TARGET_KI_NSPARE_INT        4
+#elif defined(__FreeBSD_version) && __FreeBSD_version >= 1000000
+#define TARGET_KI_NSPARE_INT        7
+#else
+#define TARGET_KI_NSPARE_INT        9
+#endif /* ! __FreeBSD_version >= 1000000 */
+#define TARGET_KI_NSPARE_LONG       12
+#define TARGET_KI_NSPARE_PTR        6
+
+#define TARGET_WMESGLEN             8
+#define TARGET_LOCKNAMELEN          8
+#define TARGET_TDNAMLEN             16
+#define TARGET_COMMLEN              19
+#define TARGET_KI_EMULNAMELEN       16
+#define TARGET_KI_NGROUPS           16
+#define TARGET_LOGNAMELEN           17
+#define TARGET_LOGINCLASSLEN        17
+
+#define TARGET_KF_TYPE_NONE         0
+#define TARGET_KF_TYPE_VNODE        1
+#define TARGET_KF_TYPE_SOCKET       2
+#define TARGET_KF_TYPE_PIPE         3
+#define TARGET_KF_TYPE_FIFO         4
+#define TARGET_KF_TYPE_KQUEUE       5
+#define TARGET_KF_TYPE_CRYPTO       6
+#define TARGET_KF_TYPE_MQUEUE       7
+#define TARGET_KF_TYPE_SHM          8
+#define TARGET_KF_TYPE_SEM          9
+#define TARGET_KF_TYPE_PTS          10
+#define TARGET_KF_TYPE_PROCDESC     11
+#define TARGET_KF_TYPE_DEV          12
+#define TARGET_KF_TYPE_UNKNOWN      255
+
+struct target_kinfo_proc {
+    int32_t     ki_structsize;      /* size of this structure */
+    int32_t     ki_layout;          /* reserved: layout identifier */
+    abi_ulong   ki_args;            /* address of command arguments */
+    abi_ulong   ki_paddr;           /* address of proc */
+    abi_ulong   ki_addr;            /* kernel virtual addr of u-area */
+    abi_ulong   ki_tracep;          /* pointer to trace file */
+    abi_ulong   ki_textvp;          /* pointer to executable file */
+    abi_ulong   ki_fd;              /* pointer to open file info */
+    abi_ulong   ki_vmspace;         /* pointer to kernel vmspace struct */
+    abi_ulong   ki_wchan;           /* sleep address */
+    int32_t     ki_pid;             /* Process identifier */
+    int32_t     ki_ppid;            /* parent process id */
+    int32_t     ki_pgid;            /* process group id */
+    int32_t     ki_tpgid;           /* tty process group id */
+    int32_t     ki_sid;             /* Process session ID */
+    int32_t     ki_tsid;            /* Terminal session ID */
+    int16_t     ki_jobc;            /* job control counter */
+    int16_t     ki_spare_short1;    /* unused (just here for alignment) */
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1200031
+    int32_t     ki_tdev__freebsd11; /* controlling tty dev */
+#else
+    int32_t     ki_tdev;            /* controlling tty dev */
+#endif
+    target_sigset_t ki_siglist;     /* Signals arrived but not delivered */
+    target_sigset_t ki_sigmask;     /* Current signal mask */
+    target_sigset_t ki_sigignore;   /* Signals being ignored */
+    target_sigset_t ki_sigcatch;    /* Signals being caught by user */
+
+    int32_t     ki_uid;             /* effective user id */
+    int32_t     ki_ruid;            /* Real user id */
+    int32_t     ki_svuid;           /* Saved effective user id */
+    int32_t     ki_rgid;            /* Real group id */
+    int32_t     ki_svgid;           /* Saved effective group id */
+    int16_t     ki_ngroups;         /* number of groups */
+    int16_t     ki_spare_short2;    /* unused (just here for alignment) */
+    int32_t     ki_groups[TARGET_KI_NGROUPS];  /* groups */
+
+    abi_long    ki_size;            /* virtual size */
+
+    abi_long    ki_rssize;          /* current resident set size in pages */
+    abi_long    ki_swrss;           /* resident set size before last swap */
+    abi_long    ki_tsize;           /* text size (pages) XXX */
+    abi_long    ki_dsize;           /* data size (pages) XXX */
+    abi_long    ki_ssize;           /* stack size (pages) */
+
+    uint16_t    ki_xstat;           /* Exit status for wait & stop signal */
+    uint16_t    ki_acflag;          /* Accounting flags */
+
+    uint32_t    ki_pctcpu;          /* %cpu for process during ki_swtime */
+
+    uint32_t    ki_estcpu;          /* Time averaged value of ki_cpticks */
+    uint32_t    ki_slptime;         /* Time since last blocked */
+    uint32_t    ki_swtime;          /* Time swapped in or out */
+    uint32_t    ki_cow;             /* number of copy-on-write faults */
+    uint64_t    ki_runtime;         /* Real time in microsec */
+
+    struct  target_freebsd_timeval ki_start;  /* starting time */
+    struct  target_freebsd_timeval ki_childtime; /* time used by process children */
+
+    abi_long    ki_flag;            /* P_* flags */
+    abi_long    ki_kiflag;          /* KI_* flags (below) */
+    int32_t     ki_traceflag;       /* Kernel trace points */
+    char        ki_stat;            /* S* process status */
+    int8_t      ki_nice;            /* Process "nice" value */
+    char        ki_lock;            /* Process lock (prevent swap) count */
+    char        ki_rqindex;         /* Run queue index */
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1100000
+    u_char      ki_oncpu_old;       /* Which cpu we are on (legacy) */
+    u_char      ki_lastcpu_old;     /* Last cpu we were on (legacy) */
+#else
+    u_char      ki_oncpu;           /* Which cpu we are on */
+    u_char      ki_lastcpu;         /* Last cpu we were on */
+#endif /* ! __FreeBSD_version >= 1100000 */
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 900000
+    char        ki_tdname[TARGET_TDNAMLEN + 1];  /* thread name */
+#else
+    char        ki_ocomm[TARGET_TDNAMLEN + 1];   /* thread name */
+#endif /* ! __FreeBSD_version >= 900000 */
+    char        ki_wmesg[TARGET_WMESGLEN + 1];   /* wchan message */
+    char        ki_login[TARGET_LOGNAMELEN + 1]; /* setlogin name */
+    char        ki_lockname[TARGET_LOCKNAMELEN + 1]; /* lock name */
+    char        ki_comm[TARGET_COMMLEN + 1];     /* command name */
+    char        ki_emul[TARGET_KI_EMULNAMELEN + 1];  /* emulation name */
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 900000
+    char        ki_loginclass[TARGET_LOGINCLASSLEN + 1]; /* login class */
+#endif /* ! __FreeBSD_version >= 900000 */
+
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 900000
+    char        ki_sparestrings[50];    /* spare string space */
+#else
+    char        ki_sparestrings[68];    /* spare string space */
+#endif /* ! __FreeBSD_version >= 900000 */
+    int32_t     ki_spareints[TARGET_KI_NSPARE_INT]; /* spare room for growth */
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1200031
+ uint64_t ki_tdev;  /* controlling tty dev */
+#endif
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1100000
+    int32_t     ki_oncpu;           /* Which cpu we are on */
+    int32_t     ki_lastcpu;         /* Last cpu we were on */
+    int32_t     ki_tracer;          /* Pid of tracing process */
+#endif /* __FreeBSD_version >= 1100000 */
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 900000
+    int32_t     ki_flag2;           /* P2_* flags */
+    int32_t     ki_fibnum;          /* Default FIB number */
+#endif /* ! __FreeBSD_version >= 900000 */
+    uint32_t    ki_cr_flags;        /* Credential flags */
+    int32_t     ki_jid;             /* Process jail ID */
+    int32_t     ki_numthreads;      /* XXXKSE number of threads in total */
+
+    int32_t     ki_tid;             /* XXXKSE thread id */
+
+    struct  target_priority ki_pri; /* process priority */
+    struct  target_freebsd_rusage ki_rusage;  /* process rusage statistics */
+        /* XXX - most fields in ki_rusage_ch are not (yet) filled in */
+    struct  target_freebsd_rusage ki_rusage_ch; /* rusage of children processes */
+
+
+    abi_ulong   ki_pcb;             /* kernel virtual addr of pcb */
+    abi_ulong   ki_kstack;          /* kernel virtual addr of stack */
+    abi_ulong   ki_udata;           /* User convenience pointer */
+    abi_ulong   ki_tdaddr;          /* address of thread */
+
+    abi_ulong   ki_spareptrs[TARGET_KI_NSPARE_PTR];  /* spare room for growth */
+    abi_long    ki_sparelongs[TARGET_KI_NSPARE_LONG];/* spare room for growth */
+    abi_long    ki_sflag;           /* PS_* flags */
+    abi_long    ki_tdflags;         /* XXXKSE kthread flag */
+};
+
+struct target_kinfo_file {
+    int32_t  kf_structsize;  /* Variable size of record. */
+    int32_t  kf_type;  /* Descriptor type. */
+    int32_t  kf_fd;   /* Array index. */
+    int32_t  kf_ref_count;  /* Reference count. */
+    int32_t  kf_flags;  /* Flags. */
+    int32_t  kf_pad0;  /* Round to 64 bit alignment. */
+    int64_t  kf_offset;  /* Seek location. */
+#if defined(__FreeBSD_version) && __FreeBSD_version < 1200031
+    int32_t  kf_vnode_type;  /* Vnode type. */
+    int32_t  kf_sock_domain;  /* Socket domain. */
+    int32_t  kf_sock_type;  /* Socket type. */
+    int32_t  kf_sock_protocol; /* Socket protocol. */
+    struct target_sockaddr_storage kf_sa_local; /* Socket address. */
+    struct target_sockaddr_storage kf_sa_peer; /* Peer address. */
+#endif
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 900000
+    union {
+        struct {
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1200031
+            uint32_t kf_spareint;
+            /* Socket domain. */
+            int  kf_sock_domain0;
+            /* Socket type. */
+            int  kf_sock_type0;
+            /* Socket protocol. */
+            int  kf_sock_protocol0;
+            /* Socket address. */
+            struct sockaddr_storage kf_sa_local;
+            /* Peer address. */
+            struct sockaddr_storage kf_sa_peer;
+#endif
+            /* Address of so_pcb. */
+            uint64_t kf_sock_pcb;
+            /* Address of inp_ppcb. */
+            uint64_t kf_sock_inpcb;
+            /* Address of unp_conn. */
+            uint64_t kf_sock_unpconn;
+            /* Send buffer state. */
+            uint16_t kf_sock_snd_sb_state;
+            /* Receive buffer state. */
+            uint16_t kf_sock_rcv_sb_state;
+            /* Round to 64 bit alignment. */
+            uint32_t kf_sock_pad0;
+        } kf_sock;
+        struct {
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1200031
+            /* Vnode type. */
+            int  kf_file_type;
+            /* Space for future use */
+            int  kf_spareint[3];
+            uint64_t kf_spareint64[30];
+            /* Vnode filesystem id. */
+            uint64_t kf_file_fsid;
+            /* File device. */
+            uint64_t kf_file_rdev;
+            /* Global file id. */
+            uint64_t kf_file_fileid;
+            /* File size. */
+            uint64_t kf_file_size;
+            /* Vnode filesystem id, FreeBSD 11 compat. */
+            uint32_t kf_file_fsid_freebsd11;
+            /* File device, FreeBSD 11 compat. */
+            uint32_t kf_file_rdev_freebsd11;
+#else
+            /* Global file id. */
+            uint64_t kf_file_fileid;
+            /* File size. */
+            uint64_t kf_file_size;
+            /* Vnode filesystem id. */
+            uint32_t kf_file_fsid;
+            /* File device. */
+            uint32_t kf_file_rdev;
+#endif
+            /* File mode. */
+            uint16_t kf_file_mode;
+            /* Round to 64 bit alignment. */
+            uint16_t kf_file_pad0;
+            uint32_t kf_file_pad1;
+        } kf_file;
+        struct {
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1200031
+            uint32_t kf_spareint[4];
+            uint64_t kf_spareint64[32];
+#endif
+            uint32_t kf_sem_value;
+            uint16_t kf_sem_mode;
+        } kf_sem;
+        struct {
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1200031
+            uint32_t kf_spareint[4];
+            uint64_t kf_spareint64[32];
+#endif
+            uint64_t kf_pipe_addr;
+            uint64_t kf_pipe_peer;
+            uint32_t kf_pipe_buffer_cnt;
+            /* Round to 64 bit alignment. */
+            uint32_t kf_pipe_pad0[3];
+        } kf_pipe;
+        struct {
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1200031
+            uint32_t kf_spareint[4];
+            uint64_t kf_spareint64[32];
+            uint32_t kf_pts_dev_freebsd11;
+            uint32_t kf_pts_pad0;
+            uint64_t kf_pts_dev;
+            /* Round to 64 bit alignment. */
+            uint32_t kf_pts_pad1[4];
+#else
+            uint32_t kf_pts_dev;
+            /* Round to 64 bit alignment. */
+            uint32_t kf_pts_pad0[7];
+#endif
+        } kf_pts;
+        struct {
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1200031
+            uint32_t kf_spareint[4];
+            uint64_t kf_spareint64[32];
+#endif
+            int32_t  kf_pid;
+        } kf_proc;
+    } kf_un;
+    uint16_t kf_status;  /* Status flags. */
+    uint16_t kf_pad1;  /* Round to 32 bit alignment. */
+    int32_t  _kf_ispare0;  /* Space for more stuff. */
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1000000
+    target_cap_rights_t kf_cap_rights; /* Capability rights. */
+    uint64_t _kf_cap_spare; /* Space for future cap_rights_t. */
+#else /* ! __FreeBSD_version >= 1000000 */
+    uint64_t        kf_cap_rights;
+    int  _kf_ispare[4];
+#endif /* ! __FreeBSD_version >= 1000000 */
+
+#else /* ! __FreeBSD_version >= 900000 */
+    int  _kf_ispare[16];
+#endif /* ! __FreeBSD_version >= 900000 */
+    /* Truncated before copyout in sysctl */
+    char  kf_path[PATH_MAX]; /* Path to file, if any. */
+};
+
+struct target_kinfo_vmentry {
+    int32_t  kve_structsize;  /* Variable size of record. */
+    int32_t  kve_type;   /* Type of map entry. */
+    uint64_t kve_start;   /* Starting address. */
+    uint64_t kve_end;   /* Finishing address. */
+    uint64_t kve_offset;   /* Mapping offset in object */
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 900000
+    uint64_t kve_vn_fileid;   /* inode number if vnode */
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1200031
+    uint32_t kve_vn_fsid_freebsd11;  /* dev_t of vnode location */
+#else
+    uint32_t kve_vn_fsid;   /* dev_t of vnode location */
+#endif
+#else /* !  __FreeBSD_version >= 900000 */
+    uint64_t kve_fileid;   /* inode number if vnode */
+    uint32_t kve_fsid;   /* dev_t of vnode location */
+#endif /* !  __FreeBSD_version >= 900000 */
+    int32_t  kve_flags;   /* Flags on map entry. */
+    int32_t  kve_resident;   /* Number of resident pages. */
+    int32_t  kve_private_resident;  /* Number of private pages. */
+    int32_t  kve_protection;  /* Protection bitmask. */
+    int32_t  kve_ref_count;   /* VM obj ref count. */
+    int32_t  kve_shadow_count;  /* VM obj shadow count. */
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 900000
+    int32_t  kve_vn_type;   /* Vnode type. */
+    uint64_t kve_vn_size;   /* File size. */
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1200031
+    uint32_t kve_vn_rdev_freebsd11;  /* Device id if device. */
+#else
+    uint32_t kve_vn_rdev;   /* Device id if device. */
+#endif
+    uint16_t kve_vn_mode;   /* File mode. */
+    uint16_t kve_status;   /* Status flags. */
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1200031
+#if (__FreeBSD_version >= 1300501 && __FreeBSD_version < 1400000) ||    \
+    __FreeBSD_version >= 1400009
+    union {
+        uint64_t _kve_vn_fsid;  /* dev_t of vnode location */
+        uint64_t _kve_obj;  /* handle of anon obj */
+    } kve_type_spec;
+#define kve_vn_fsid kve_type_spec._kve_vn_fsid
+#define kve_obj  kve_type_spec._kve_obj
+#else
+    uint64_t kve_vn_fsid;   /* dev_t of vnode location */
+#endif
+    uint64_t kve_vn_rdev;   /* Device id if device. */
+    int  _kve_ispare[8];  /* Space for more stuff. */
+#else
+    int32_t  _kve_ispare[12];  /* Space for more stuff. */
+#endif
+#else /* !  __FreeBSD_version >= 900000 */
+    int  _kve_pad0;
+    int32_t  _kve_ispare[16];  /* Space for more stuff. */
+#endif /* !  __FreeBSD_version >= 900000 */
+    /* Truncated before copyout in sysctl */
+    char  kve_path[PATH_MAX];  /* Path to VM obj, if any. */
+};
+
+#endif /* ! _TARGET_OS_USER_H_ */
diff --git a/bsd-user/freebsd/target_os_vmparam.h b/bsd-user/freebsd/target_os_vmparam.h
new file mode 100644
index 0000000000..990300c619
--- /dev/null
+++ b/bsd-user/freebsd/target_os_vmparam.h
@@ -0,0 +1,38 @@
+/*
+ *  FreeBSD VM parameters 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_VMPARAM_H_
+#define _TARGET_OS_VMPARAM_H_
+
+#include "target_arch_vmparam.h"
+
+/* Compare to sys/exec.h */
+struct target_ps_strings {
+    abi_ulong ps_argvstr;
+    uint32_t ps_nargvstr;
+    abi_ulong ps_envstr;
+    uint32_t ps_nenvstr;
+};
+
+extern abi_ulong target_stkbas;
+extern abi_ulong target_stksiz;
+
+#define TARGET_PS_STRINGS  ((target_stkbas + target_stksiz) - \
+                            sizeof(struct target_ps_strings))
+
+#endif /* !TARGET_OS_VMPARAM_H_ */