Merge remote-tracking branch 'remotes/pmaydell/tags/pull-bsd-user-20140611' into staging

bsd-user queue:
 * build fixes
 * improvements to strace

# gpg: Signature made Wed 11 Jun 2014 15:23:40 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"

* remotes/pmaydell/tags/pull-bsd-user-20140611:
  bsd-user: Fix syscall format, add strace support for more syscalls
  bsd-user: Implement strace support for thr_* syscalls
  bsd-user: Implement strace support for extattr_* syscalls
  bsd-user: Implement strace support for __acl_* syscalls
  bsd-user: Implement strace support for print_ioctl syscall
  bsd-user: Implement strace support for print_sysctl syscall
  bsd-user: GPL v2 attribution update and style
  bsd-user: add HOST_VARIANT_DIR for various *BSD dependent code
  exec: replace ffsl with ctzl
  vhost: replace ffsl with ctzl
  xen: replace ffsl with ctzl
  util/qemu-openpty: fix build with musl libc by include termios.h as fallback
  bsd-user/mmap.c: Don't try to override g_malloc/g_free
  util/hbitmap.c: Use ctpopl rather than reimplementing a local equivalent
  bsd-user: refresh freebsd system call numbers
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

Makefile.target

@@ -102,7 +102,8 @@ endif #CONFIG_LINUX_USER
 
 ifdef CONFIG_BSD_USER
 
-QEMU_CFLAGS+=-I$(SRC_PATH)/bsd-user -I$(SRC_PATH)/bsd-user/$(TARGET_ABI_DIR)
+QEMU_CFLAGS+=-I$(SRC_PATH)/bsd-user -I$(SRC_PATH)/bsd-user/$(TARGET_ABI_DIR) \
+			 -I$(SRC_PATH)/bsd-user/$(HOST_VARIANT_DIR)
 
 obj-y += bsd-user/
 obj-y += gdbstub.o user-exec.o

bsd-user/freebsd/strace.list

-{ TARGET_FREEBSD_NR___getcwd, "__getcwd", NULL, NULL, NULL },
+/*
+ *  FreeBSD strace list
+ *
+ *
+ *  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/>.
+ */
+
+{ TARGET_FREEBSD_NR___acl_aclcheck_fd, "__acl_aclcheck_fd", "%s(%d, %d, %#x)", NULL, NULL },
+{ TARGET_FREEBSD_NR___acl_aclcheck_file, "__acl_aclcheck_file", "%s(\"%s\", %d, %#x)", NULL, NULL },
+{ TARGET_FREEBSD_NR___acl_aclcheck_link, "__acl_aclcheck_link", "%s(\"%s\", %d, %#x)", NULL, NULL },
+{ TARGET_FREEBSD_NR___acl_delete_fd, "__acl_delete_fd", "%s(%d, %d)", NULL, NULL },
+{ TARGET_FREEBSD_NR___acl_delete_file, "__acl_delete_file", "%s(\"%s\", %d)", NULL, NULL },
+{ TARGET_FREEBSD_NR___acl_delete_link, "__acl_delete_link", "%s(\"%s\", %d)", NULL, NULL },
+{ TARGET_FREEBSD_NR___acl_get_fd, "__acl_get_fd", "%s(%d, %d, %#x)", NULL, NULL },
+{ TARGET_FREEBSD_NR___acl_get_file, "__acl_get_file", "%s(\"%s\", %d, %#x)", NULL, NULL },
+{ TARGET_FREEBSD_NR___acl_get_link, "__acl_get_link", "%s(\"%s\", %d, %#x)", NULL, NULL },
+{ TARGET_FREEBSD_NR___acl_set_fd, "__acl_set_fd", "%s(%d, %d, %#x)", NULL, NULL },
+{ TARGET_FREEBSD_NR___acl_set_file, "__acl_set_file", "%s(\"%s\", %d, %#x)", NULL, NULL },
+{ TARGET_FREEBSD_NR___acl_set_link, "__acl_set_link", "%s(\"%s\", %d, %#x)", NULL, NULL },
 { TARGET_FREEBSD_NR___semctl, "__semctl", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR___syscall, "__syscall", NULL, NULL, NULL },
-{ TARGET_FREEBSD_NR___sysctl, "__sysctl", NULL, NULL, NULL },
+{ TARGET_FREEBSD_NR___sysctl, "__sysctl", NULL, print_sysctl, NULL },
+{ TARGET_FREEBSD_NR__umtx_op, "_umtx_op", "%s(%#x, %d, %d, %#x, %#x)", NULL, NULL },
 { TARGET_FREEBSD_NR_accept, "accept", "%s(%d,%#x,%#x)", NULL, NULL },
 { TARGET_FREEBSD_NR_access, "access", "%s(\"%s\",%#o)", NULL, NULL },
 { TARGET_FREEBSD_NR_acct, "acct", NULL, NULL, NULL },
@@ -20,24 +50,41 @@
 { TARGET_FREEBSD_NR_connect, "connect", "%s(%d,%#x,%d)", NULL, NULL },
 { TARGET_FREEBSD_NR_dup, "dup", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_dup2, "dup2", NULL, NULL, NULL },
+{ TARGET_FREEBSD_NR_eaccess, "eaccess", "%s(\"%s\",%#x)", NULL, NULL },
 { TARGET_FREEBSD_NR_execve, "execve", NULL, print_execve, NULL },
 { TARGET_FREEBSD_NR_exit, "exit", "%s(%d)\n", NULL, NULL },
+{ TARGET_FREEBSD_NR_extattrctl, "extattrctl", "%s(\"%s\", %d, \"%s\", %d, \"%s\"", NULL, NULL },
+{ TARGET_FREEBSD_NR_extattr_delete_fd, "extattr_delete_fd", "%s(%d, %d, \"%s\")", NULL, NULL },
+{ TARGET_FREEBSD_NR_extattr_delete_file, "extattr_delete_file", "%s(\"%s\", %d, \"%s\")", NULL, NULL },
+{ TARGET_FREEBSD_NR_extattr_delete_link, "extattr_delete_link", "%s(\"%s\", %d, \"%s\")", NULL, NULL },
+{ TARGET_FREEBSD_NR_extattr_get_fd, "extattr_get_fd", "%s(%d, %d, \"%s\", %#x, %d)", NULL, NULL },
+{ TARGET_FREEBSD_NR_extattr_get_file, "extattr_get_file", "%s(\"%s\", %d, \"%s\", %#x, %d)", NULL, NULL },
+{ TARGET_FREEBSD_NR_extattr_get_file, "extattr_get_link", "%s(\"%s\", %d, \"%s\", %#x, %d)", NULL, NULL },
+{ TARGET_FREEBSD_NR_extattr_list_fd, "extattr_list_fd", "%s(%d, %d, %#x, %d)", NULL, NULL },
+{ TARGET_FREEBSD_NR_extattr_list_file, "extattr_list_file", "%s(\"%s\", %d, %#x, %d)", NULL, NULL },
+{ TARGET_FREEBSD_NR_extattr_list_link, "extattr_list_link", "%s(\"%s\", %d, %#x, %d)", NULL, NULL },
+{ TARGET_FREEBSD_NR_extattr_set_fd, "extattr_set_fd", "%s(%d, %d, \"%s\", %#x, %d)", NULL, NULL },
+{ TARGET_FREEBSD_NR_extattr_set_file, "extattr_set_file", "%s(\"%s\", %d, \"%s\", %#x, %d)", NULL, NULL },
+{ TARGET_FREEBSD_NR_extattr_set_link, "extattr_set_link", "%s(\"%s\", %d, \"%s\", %#x, %d)", NULL, NULL },
 { TARGET_FREEBSD_NR_fchdir, "fchdir", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_fchflags, "fchflags", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_fchmod, "fchmod", "%s(%d,%#o)", NULL, NULL },
-{ TARGET_FREEBSD_NR_fchown, "fchown", "%s(\"%s\",%d,%d)", NULL, NULL },
+{ TARGET_FREEBSD_NR_fchown, "fchown", "%s(%d,%d,%d)", NULL, NULL },
 { TARGET_FREEBSD_NR_fcntl, "fcntl", NULL, NULL, NULL },
+{ TARGET_FREEBSD_NR_fexecve, "fexecve", NULL, print_execve, NULL },
 { TARGET_FREEBSD_NR_fhopen, "fhopen", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_fhstat, "fhstat", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_fhstatfs, "fhstatfs", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_flock, "flock", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_fork, "fork", "%s()", NULL, NULL },
 { TARGET_FREEBSD_NR_fpathconf, "fpathconf", NULL, NULL, NULL },
-{ TARGET_FREEBSD_NR_fstat, "fstat", "%s(%d,%p)", NULL, NULL },
-{ TARGET_FREEBSD_NR_fstatfs, "fstatfs", "%s(%d,%p)", NULL, NULL },
+{ TARGET_FREEBSD_NR_fstat, "fstat", "%s(%d,%#x)", NULL, NULL },
+{ TARGET_FREEBSD_NR_fstatat, "fstatat", "%s(%d,\"%s\", %#x, %d)", NULL, NULL },
+{ TARGET_FREEBSD_NR_fstatfs, "fstatfs", "%s(%d,%#x)", NULL, NULL },
 { TARGET_FREEBSD_NR_fsync, "fsync", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_ftruncate, "ftruncate", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_futimes, "futimes", NULL, NULL, NULL },
+{ TARGET_FREEBSD_NR_getcontext, "getcontext", "%s(%#x)", NULL, NULL },
 { TARGET_FREEBSD_NR_getdirentries, "getdirentries", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_freebsd6_mmap, "freebsd6_mmap", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_getegid, "getegid", "%s()", NULL, NULL },
@@ -63,7 +110,7 @@
 { TARGET_FREEBSD_NR_getsockopt, "getsockopt", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_gettimeofday, "gettimeofday", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_getuid, "getuid", "%s()", NULL, NULL },
-{ TARGET_FREEBSD_NR_ioctl, "ioctl", NULL, NULL, NULL },
+{ TARGET_FREEBSD_NR_ioctl, "ioctl", NULL, print_ioctl, NULL },
 { TARGET_FREEBSD_NR_issetugid, "issetugid", "%s()", NULL, NULL },
 { TARGET_FREEBSD_NR_kevent, "kevent", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_kill, "kill", NULL, NULL, NULL },
@@ -72,6 +119,7 @@
 { TARGET_FREEBSD_NR_lchown, "lchown", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_link, "link", "%s(\"%s\",\"%s\")", NULL, NULL },
 { TARGET_FREEBSD_NR_listen, "listen", NULL, NULL, NULL },
+{ TARGET_FREEBSD_NR_lpathconf, "lpathconf", "%s(\"%s\", %d)", NULL, NULL },
 { TARGET_FREEBSD_NR_lseek, "lseek", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_lstat, "lstat", "%s(\"%s\",%p)", NULL, NULL },
 { TARGET_FREEBSD_NR_madvise, "madvise", NULL, NULL, NULL },
@@ -96,7 +144,8 @@
 { TARGET_FREEBSD_NR_nanosleep, "nanosleep", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_nfssvc, "nfssvc", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_open, "open", "%s(\"%s\",%#x,%#o)", NULL, NULL },
-{ TARGET_FREEBSD_NR_pathconf, "pathconf", NULL, NULL, NULL },
+{ TARGET_FREEBSD_NR_openat, "openat", "%s(%d, \"%s\",%#x,%#o)", NULL, NULL },
+{ TARGET_FREEBSD_NR_pathconf, "pathconf", "%s(\"%s\", %d)", NULL, NULL },
 { TARGET_FREEBSD_NR_pipe, "pipe", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_poll, "poll", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_pread, "pread", NULL, NULL, NULL },
@@ -116,6 +165,7 @@
 { TARGET_FREEBSD_NR_revoke, "revoke", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_rfork, "rfork", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_rmdir, "rmdir", NULL, NULL, NULL },
+{ TARGET_FREEBSD_NR_rtprio_thread, "rtprio_thread", "%s(%d, %d, %p)", NULL, NULL },
 { TARGET_FREEBSD_NR_sbrk, "sbrk", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_sched_yield, "sched_yield", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_select, "select", NULL, NULL, NULL },
@@ -123,6 +173,7 @@
 { TARGET_FREEBSD_NR_semop, "semop", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_sendmsg, "sendmsg", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_sendto, "sendto", NULL, NULL, NULL },
+{ TARGET_FREEBSD_NR_setcontext, "setcontext", "%s(%#x)", NULL, NULL },
 { TARGET_FREEBSD_NR_setegid, "setegid", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_seteuid, "seteuid", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_setgid, "setgid", NULL, NULL, NULL },
@@ -151,7 +202,7 @@
 { TARGET_FREEBSD_NR_sigprocmask, "sigprocmask", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_sigreturn, "sigreturn", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_sigsuspend, "sigsuspend", NULL, NULL, NULL },
-{ TARGET_FREEBSD_NR_socket, "socket", NULL, NULL, NULL },
+{ TARGET_FREEBSD_NR_socket, "socket", "%s(%d,%d,%d)", NULL, NULL },
 { TARGET_FREEBSD_NR_socketpair, "socketpair", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_sstk, "sstk", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_stat, "stat", "%s(\"%s\",%p)", NULL, NULL },
@@ -160,6 +211,15 @@
 { TARGET_FREEBSD_NR_sync, "sync", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_sysarch, "sysarch", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_syscall, "syscall", NULL, NULL, NULL },
+{ TARGET_FREEBSD_NR_thr_create, "thr_create", "%s(%#x, %#x, %d)", NULL, NULL },
+{ TARGET_FREEBSD_NR_thr_exit, "thr_exit", "%s(%#x)", NULL, NULL },
+{ TARGET_FREEBSD_NR_thr_kill, "thr_kill", "%s(%d, %#x)", NULL, NULL },
+{ TARGET_FREEBSD_NR_thr_kill2, "thr_kill2", "%s(%d, %d, %d)", NULL, NULL },
+{ TARGET_FREEBSD_NR_thr_new, "thr_new", "%s(%#x, %d)", NULL, NULL },
+{ TARGET_FREEBSD_NR_thr_self, "thr_self", "%s(%#x)", NULL, NULL },
+{ TARGET_FREEBSD_NR_thr_set_name, "thr_set_name", "%s(%d, \"%s\")", NULL, NULL },
+{ TARGET_FREEBSD_NR_thr_suspend, "thr_suspend", "%s(%d, %#x)", NULL, NULL },
+{ TARGET_FREEBSD_NR_thr_wake, "thr_wake", "%s(%d)", NULL, NULL },
 { TARGET_FREEBSD_NR_truncate, "truncate", NULL, NULL, NULL },
 { TARGET_FREEBSD_NR_umask, "umask", "%s(%#o)", NULL, NULL },
 { TARGET_FREEBSD_NR_unlink, "unlink", "%s(\"%s\")", NULL, NULL },

bsd-user/mmap.c

@@ -74,66 +74,6 @@ void mmap_unlock(void)
 }
 #endif
 
-static void *bsd_vmalloc(size_t size)
-{
-    void *p;
-    mmap_lock();
-    /* Use map and mark the pages as used.  */
-    p = mmap(NULL, size, PROT_READ | PROT_WRITE,
-             MAP_PRIVATE | MAP_ANON, -1, 0);
-
-    if (h2g_valid(p)) {
-        /* Allocated region overlaps guest address space.
-           This may recurse.  */
-        abi_ulong addr = h2g(p);
-        page_set_flags(addr & TARGET_PAGE_MASK, TARGET_PAGE_ALIGN(addr + size),
-                       PAGE_RESERVED);
-    }
-
-    mmap_unlock();
-    return p;
-}
-
-void *g_malloc(size_t size)
-{
-    char * p;
-    size += 16;
-    p = bsd_vmalloc(size);
-    *(size_t *)p = size;
-    return p + 16;
-}
-
-/* We use map, which is always zero initialized.  */
-void * g_malloc0(size_t size)
-{
-    return g_malloc(size);
-}
-
-void g_free(void *ptr)
-{
-    /* FIXME: We should unmark the reserved pages here.  However this gets
-       complicated when one target page spans multiple host pages, so we
-       don't bother.  */
-    size_t *p;
-    p = (size_t *)((char *)ptr - 16);
-    munmap(p, *p);
-}
-
-void *g_realloc(void *ptr, size_t size)
-{
-    size_t old_size, copy;
-    void *new_ptr;
-
-    if (!ptr)
-        return g_malloc(size);
-    old_size = *(size_t *)((char *)ptr - 16);
-    copy = old_size < size ? old_size : size;
-    new_ptr = g_malloc(size);
-    memcpy(new_ptr, ptr, copy);
-    g_free(ptr);
-    return new_ptr;
-}
-
 /* NOTE: all the constants are the HOST ones, but addresses are target. */
 int target_mprotect(abi_ulong start, abi_ulong len, int prot)
 {

bsd-user/qemu.h

+/*
+ *  qemu bsd user mode definition
+ *
+ *  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 QEMU_H
 #define QEMU_H
 
@@ -150,6 +166,16 @@ void fork_end(int child);
 #include "qemu/log.h"
 
 /* strace.c */
+struct syscallname {
+    int nr;
+    const char *name;
+    const char *format;
+    void (*call)(const struct syscallname *,
+                 abi_long, abi_long, abi_long,
+                 abi_long, abi_long, abi_long);
+    void (*result)(const struct syscallname *, abi_long);
+};
+
 void
 print_freebsd_syscall(int num,
                       abi_long arg1, abi_long arg2, abi_long arg3,

bsd-user/strace.c

+/*
+ *  System call tracing and debugging
+ *
+ *
+ *  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 <errno.h>
 #include <sys/select.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include <sys/syscall.h>
+#include <sys/ioccom.h>
+#include <ctype.h>
+
 #include "qemu.h"
 
-int do_strace=0;
-
-struct syscallname {
-    int nr;
-    const char *name;
-    const char *format;
-    void (*call)(const struct syscallname *,
-                 abi_long, abi_long, abi_long,
-                 abi_long, abi_long, abi_long);
-    void (*result)(const struct syscallname *, abi_long);
-};
+int do_strace;
 
 /*
  * Utility functions
  */
 
-static void
-print_execve(const struct syscallname *name,
-             abi_long arg1, abi_long arg2, abi_long arg3,
-             abi_long arg4, abi_long arg5, abi_long arg6)
+static void print_sysctl(const struct syscallname *name, abi_long arg1,
+        abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5,
+        abi_long arg6)
+{
+    uint32_t i;
+    int32_t *namep;
+
+    gemu_log("%s({ ", name->name);
+    namep = lock_user(VERIFY_READ, arg1, sizeof(int32_t) * arg2, 1);
+    if (namep) {
+        int32_t *p = namep;
+
+        for (i = 0; i < (uint32_t)arg2; i++) {
+            gemu_log("%d ", tswap32(*p++));
+        }
+        unlock_user(namep, arg1, 0);
+    }
+    gemu_log("}, %u, 0x" TARGET_ABI_FMT_lx ", 0x" TARGET_ABI_FMT_lx ", 0x"
+        TARGET_ABI_FMT_lx ", 0x" TARGET_ABI_FMT_lx ")",
+        (uint32_t)arg2, arg3, arg4, arg5, arg6);
+}
+
+static void print_execve(const struct syscallname *name, abi_long arg1,
+        abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5,
+        abi_long arg6)
 {
     abi_ulong arg_ptr_addr;
     char *s;
 
-    if (!(s = lock_user_string(arg1)))
+    s = lock_user_string(arg1);
+    if (s == NULL) {
         return;
+    }
     gemu_log("%s(\"%s\",{", name->name, s);
     unlock_user(s, arg1, 0);
 
@@ -39,29 +73,48 @@ print_execve(const struct syscallname *name,
         abi_ulong *arg_ptr, arg_addr;
 
         arg_ptr = lock_user(VERIFY_READ, arg_ptr_addr, sizeof(abi_ulong), 1);
-        if (!arg_ptr)
+        if (!arg_ptr) {
             return;
+        }
         arg_addr = tswapl(*arg_ptr);
         unlock_user(arg_ptr, arg_ptr_addr, 0);
-        if (!arg_addr)
+        if (!arg_addr) {
             break;
+        }
         if ((s = lock_user_string(arg_addr))) {
             gemu_log("\"%s\",", s);
             unlock_user(s, arg_addr, 0);
         }
     }
-
     gemu_log("NULL})");
 }
 
+static void print_ioctl(const struct syscallname *name,
+        abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4,
+        abi_long arg5, abi_long arg6)
+{
+    /* Decode the ioctl request */
+    gemu_log("%s(%d, 0x%0lx { IO%s%s GRP:0x%x('%c') CMD:%d LEN:%d }, 0x"
+            TARGET_ABI_FMT_lx ", ...)",
+            name->name,
+            (int)arg1,
+            (unsigned long)arg2,
+            arg2 & IOC_OUT ? "R" : "",
+            arg2 & IOC_IN ? "W" : "",
+            (unsigned)IOCGROUP(arg2),
+            isprint(IOCGROUP(arg2)) ? (char)IOCGROUP(arg2) : '?',
+            (int)arg2 & 0xFF,
+            (int)IOCPARM_LEN(arg2),
+            arg3);
+}
+
 /*
  * Variants for the return value output function
  */
 
-static void
-print_syscall_ret_addr(const struct syscallname *name, abi_long ret)
+static void print_syscall_ret_addr(const struct syscallname *name, abi_long ret)
 {
-if( ret == -1 ) {
+    if (ret == -1) {
         gemu_log(" = -1 errno=%d (%s)\n", errno, strerror(errno));
     } else {
         gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
@@ -90,10 +143,9 @@ static const struct syscallname openbsd_scnames[] = {
 #include "openbsd/strace.list"
 };
 
-static void
-print_syscall(int num, const struct syscallname *scnames, unsigned int nscnames,
-              abi_long arg1, abi_long arg2, abi_long arg3,
-              abi_long arg4, abi_long arg5, abi_long arg6)
+static void print_syscall(int num, const struct syscallname *scnames,
+        unsigned int nscnames, abi_long arg1, abi_long arg2, abi_long arg3,
+        abi_long arg4, abi_long arg5, abi_long arg6)
 {
     unsigned int i;
     const char *format="%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ","
@@ -102,36 +154,37 @@ print_syscall(int num, const struct syscallname *scnames, unsigned int nscnames,
 
     gemu_log("%d ", getpid() );
 
-    for (i = 0; i < nscnames; i++)
+    for (i = 0; i < nscnames; i++) {
         if (scnames[i].nr == num) {
             if (scnames[i].call != NULL) {
                 scnames[i].call(&scnames[i], arg1, arg2, arg3, arg4, arg5,
-                                arg6);
+                        arg6);
             } else {
                 /* XXX: this format system is broken because it uses
                    host types and host pointers for strings */
-                if (scnames[i].format != NULL)
+                if (scnames[i].format != NULL) {
                     format = scnames[i].format;
-                gemu_log(format, scnames[i].name, arg1, arg2, arg3, arg4,
-                         arg5, arg6);
+                }
+                gemu_log(format, scnames[i].name, arg1, arg2, arg3, arg4, arg5,
+                        arg6);
             }
             return;
         }
+    }
     gemu_log("Unknown syscall %d\n", num);
 }
 
-static void
-print_syscall_ret(int num, abi_long ret, const struct syscallname *scnames,
-                  unsigned int nscnames)
+static void print_syscall_ret(int num, abi_long ret,
+        const struct syscallname *scnames, unsigned int nscnames)
 {
     unsigned int i;
 
-    for (i = 0; i < nscnames; i++)
+    for (i = 0; i < nscnames; i++) {
         if (scnames[i].nr == num) {
             if (scnames[i].result != NULL) {
                 scnames[i].result(&scnames[i], ret);
             } else {
-                if( ret < 0 ) {
+                if (ret < 0) {
                     gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n", -ret,
                              strerror(-ret));
                 } else {
@@ -140,52 +193,50 @@ print_syscall_ret(int num, abi_long ret, const struct syscallname *scnames,
             }
             break;
         }
+    }
 }
 
 /*
  * The public interface to this module.
  */
-void
-print_freebsd_syscall(int num,
-                      abi_long arg1, abi_long arg2, abi_long arg3,
-                      abi_long arg4, abi_long arg5, abi_long arg6)
+void print_freebsd_syscall(int num, abi_long arg1, abi_long arg2, abi_long arg3,
+        abi_long arg4, abi_long arg5, abi_long arg6)
 {
-    print_syscall(num, freebsd_scnames, ARRAY_SIZE(freebsd_scnames),
-                  arg1, arg2, arg3, arg4, arg5, arg6);
+
+    print_syscall(num, freebsd_scnames, ARRAY_SIZE(freebsd_scnames), arg1, arg2,
+            arg3, arg4, arg5, arg6);
 }
 
-void
-print_freebsd_syscall_ret(int num, abi_long ret)
+void print_freebsd_syscall_ret(int num, abi_long ret)
 {
+
     print_syscall_ret(num, ret, freebsd_scnames, ARRAY_SIZE(freebsd_scnames));
 }
 
-void
-print_netbsd_syscall(int num,
-                      abi_long arg1, abi_long arg2, abi_long arg3,
-                      abi_long arg4, abi_long arg5, abi_long arg6)
+void print_netbsd_syscall(int num, abi_long arg1, abi_long arg2, abi_long arg3,
+        abi_long arg4, abi_long arg5, abi_long arg6)
 {
+
     print_syscall(num, netbsd_scnames, ARRAY_SIZE(netbsd_scnames),
                   arg1, arg2, arg3, arg4, arg5, arg6);
 }
 
-void
-print_netbsd_syscall_ret(int num, abi_long ret)
+void print_netbsd_syscall_ret(int num, abi_long ret)
 {
+
     print_syscall_ret(num, ret, netbsd_scnames, ARRAY_SIZE(netbsd_scnames));
 }
 
-void
-print_openbsd_syscall(int num,
-                      abi_long arg1, abi_long arg2, abi_long arg3,
-                      abi_long arg4, abi_long arg5, abi_long arg6)
+void print_openbsd_syscall(int num, abi_long arg1, abi_long arg2, abi_long arg3,
+        abi_long arg4, abi_long arg5, abi_long arg6)
 {
-    print_syscall(num, openbsd_scnames, ARRAY_SIZE(openbsd_scnames),
-                  arg1, arg2, arg3, arg4, arg5, arg6);
+
+    print_syscall(num, openbsd_scnames, ARRAY_SIZE(openbsd_scnames), arg1, arg2,
+            arg3, arg4, arg5, arg6);
 }
 
-void
-print_openbsd_syscall_ret(int num, abi_long ret)
+void print_openbsd_syscall_ret(int num, abi_long ret)
 {
+
     print_syscall_ret(num, ret, openbsd_scnames, ARRAY_SIZE(openbsd_scnames));
 }

configure

@@ -546,6 +546,9 @@ fi
 
 # OS specific
 
+# host *BSD for user mode
+HOST_VARIANT_DIR=""
+
 case $targetos in
 CYGWIN*)
   mingw32="yes"
@@ -571,12 +574,14 @@ FreeBSD)
   # needed for kinfo_getvmmap(3) in libutil.h
   LIBS="-lutil $LIBS"
   netmap=""  # enable netmap autodetect
+  HOST_VARIANT_DIR="freebsd"
 ;;
 DragonFly)
   bsd="yes"
   make="${MAKE-gmake}"
   audio_drv_list="oss"
   audio_possible_drivers="oss sdl esd pa"
+  HOST_VARIANT_DIR="dragonfly"
 ;;
 NetBSD)
   bsd="yes"
@@ -584,12 +589,14 @@ NetBSD)
   audio_drv_list="oss"
   audio_possible_drivers="oss sdl esd"
   oss_lib="-lossaudio"
+  HOST_VARIANT_DIR="netbsd"
 ;;
 OpenBSD)
   bsd="yes"
   make="${MAKE-gmake}"
   audio_drv_list="sdl"
   audio_possible_drivers="sdl esd"
+  HOST_VARIANT_DIR="openbsd"
 ;;
 Darwin)
   bsd="yes"
@@ -607,6 +614,7 @@ Darwin)
   # Disable attempts to use ObjectiveC features in os/object.h since they
   # won't work when we're compiling with gcc as a C compiler.
   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
+  HOST_VARIANT_DIR="darwin"
 ;;
 SunOS)
   solaris="yes"
@@ -4986,6 +4994,9 @@ if [ "$TARGET_ABI_DIR" = "" ]; then
   TARGET_ABI_DIR=$TARGET_ARCH
 fi
 echo "TARGET_ABI_DIR=$TARGET_ABI_DIR" >> $config_target_mak
+if [ "$HOST_VARIANT_DIR" != "" ]; then
+    echo "HOST_VARIANT_DIR=$HOST_VARIANT_DIR" >> $config_target_mak
+fi
 case "$target_name" in
   i386|x86_64)
     if test "$xen" = "yes" -a "$target_softmmu" = "yes" ; then

hw/virtio/vhost.c

@@ -41,7 +41,6 @@ static void vhost_dev_sync_region(struct vhost_dev *dev,
 
     for (;from < to; ++from) {
         vhost_log_chunk_t log;
-        int bit;
         /* We first check with non-atomic: much cheaper,
          * and we expect non-dirty to be the common case. */
         if (!*from) {
@@ -51,12 +50,11 @@ static void vhost_dev_sync_region(struct vhost_dev *dev,
         /* Data must be read atomically. We don't really need barrier semantics
          * but it's easier to use atomic_* than roll our own. */
         log = atomic_xchg(from, 0);
-        while ((bit = sizeof(log) > sizeof(int) ?
-                ffsll(log) : ffs(log))) {
+        while (log) {
+            int bit = ctzl(log);
             hwaddr page_addr;
             hwaddr section_offset;
             hwaddr mr_offset;
-            bit -= 1;
             page_addr = addr + bit * VHOST_LOG_PAGE;
             section_offset = page_addr - section->offset_within_address_space;
             mr_offset = section_offset + section->offset_within_region;

include/exec/ram_addr.h

@@ -117,7 +117,7 @@ static inline void cpu_physical_memory_set_dirty_lebitmap(unsigned long *bitmap,
             if (bitmap[i] != 0) {
                 c = leul_to_cpu(bitmap[i]);
                 do {
-                    j = ffsl(c) - 1;
+                    j = ctzl(c);
                     c &= ~(1ul << j);
                     page_number = (i * HOST_LONG_BITS + j) * hpratio;
                     addr = page_number * TARGET_PAGE_SIZE;

util/hbitmap.c

@@ -92,11 +92,6 @@ struct HBitmap {
     unsigned long *levels[HBITMAP_LEVELS];
 };
 
-static inline int popcountl(unsigned long l)
-{
-    return BITS_PER_LONG == 32 ? ctpop32(l) : ctpop64(l);
-}
-
 /* Advance hbi to the next nonzero word and return it.  hbi->pos
  * is updated.  Returns zero if we reach the end of the bitmap.
  */
@@ -200,14 +195,14 @@ static uint64_t hb_count_between(HBitmap *hb, uint64_t start, uint64_t last)
         if (pos >= (end >> BITS_PER_LEVEL)) {
             break;
         }
-        count += popcountl(cur);
+        count += ctpopl(cur);
     }
 
     if (pos == (end >> BITS_PER_LEVEL)) {
         /* Drop bits representing the END-th and subsequent items.  */
         int bit = end & (BITS_PER_LONG - 1);
         cur &= (1UL << bit) - 1;
-        count += popcountl(cur);
+        count += ctpopl(cur);
     }
 
     return count;

util/qemu-openpty.c

@@ -47,6 +47,8 @@
 #elif defined CONFIG_SOLARIS
 # include <termios.h>
 # include <stropts.h>
+#else
+# include <termios.h>
 #endif
 
 #ifdef __sun__

xen-hvm.c

@@ -511,7 +511,7 @@ static void xen_sync_dirty_bitmap(XenIOState *state,
     for (i = 0; i < ARRAY_SIZE(bitmap); i++) {
         unsigned long map = bitmap[i];
         while (map != 0) {
-            j = ffsl(map) - 1;
+            j = ctzl(map);
             map &= ~(1ul << j);
             memory_region_set_dirty(framebuffer,
                                     (i * width + j) * TARGET_PAGE_SIZE,