qemu: remove 0.9.x

QEMU 0.9.x is obsolete this days and with all modifications made for
QEMU 0.10.x in OE, versions 0.9.x are unusable anyway. 0.10.3 was
introduced 10 month ago, so a good transition time was also given.
Now it's time to just kill it.

Also remove cvs and svn versions since those are 0.9.x leftovers and
QEMU moved to git long ago.

Also remove gcc3 checks since that are not relevant for QEMU 0.10+.

Also remove from icecc blacklist, since QEMU builds fine with it and
the reason for blacklisting was GCC 3.

Signed-off-by: Roman I Khimov <khimov@altell.ru>
Acked-by: Tom Rini <tom_rini@mentor.com>
Acked-by: Koen Kooi <koen@openembedded.org>
Acked-by: Marcin Juszkiewicz <marcin@juszkiewicz.com.pl>

Conflicts:

	classes/sanity.bbclass

1 files changed, 0 insertions, 857 deletions

diff --git a/recipes/qemu/qemu-0.9.0+cvs20070613/arm_nptl.patch b/recipes/qemu/qemu-0.9.0+cvs20070613/arm_nptl.patch
deleted file mode 100644
index f9b10aebc5..0000000000
--- a/recipes/qemu/qemu-0.9.0+cvs20070613/arm_nptl.patch
+++ /dev/null
@@ -1,857 +0,0 @@
-Index: qemu/configure
-===================================================================
---- qemu.orig/configure	2006-08-26 16:31:53.000000000 +0100
-+++ qemu/configure	2006-08-26 16:31:53.000000000 +0100
-@@ -97,6 +97,7 @@
- build_docs="no"
- build_acpi_tables="no"
- uname_release=""
-+nptl="yes"
- 
- # OS specific
- targetos=`uname -s`
-@@ -243,6 +244,8 @@
-   ;;
-   --enable-iasl) build_acpi_tables="yes"
-   ;;
-+  --disable-nptl) nptl="no"
-+  ;;
-   esac
- done
- 
-@@ -441,6 +444,23 @@
-     fi
- fi
- 
-+# check NPTL support
-+cat > $TMPC <<EOF
-+#include <sched.h>
-+void foo()
-+{
-+#ifndef CLONE_SETTLS
-+#error bork
-+#endif
-+}
-+EOF
-+
-+if $cc -c -o $TMPO $TMPC 2> /dev/null ; then
-+  :
-+else
-+   nptl="no"
-+fi
-+
- ##########################################
- # SDL probe
- 
-@@ -559,6 +579,7 @@
- fi
- echo "FMOD support      $fmod $fmod_support"
- echo "kqemu support     $kqemu"
-+echo "NPTL support      $nptl"
- echo "Documentation     $build_docs"
- [ ! -z "$uname_release" ] && \
- echo "uname -r          $uname_release"
-@@ -880,6 +901,14 @@
-             echo "SDL_CFLAGS=`$sdl_config --cflags`" >> $config_mak
-         fi
-     fi
-+else
-+    if test "$nptl" = "yes" ; then
-+        case "$target_cpu" in
-+          arm | armeb)
-+            echo "#define USE_NPTL 1" >> $config_h
-+          ;;
-+        esac
-+    fi
- fi
- 
- if test "$cocoa" = "yes" ; then
-Index: qemu/exec-all.h
-===================================================================
---- qemu.orig/exec-all.h	2006-08-26 16:28:32.000000000 +0100
-+++ qemu/exec-all.h	2006-08-26 16:31:53.000000000 +0100
-@@ -347,163 +347,7 @@
- extern CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4];
- extern void *io_mem_opaque[IO_MEM_NB_ENTRIES];
- 
--#ifdef __powerpc__
--static inline int testandset (int *p)
--{
--    int ret;
--    __asm__ __volatile__ (
--                          "0:    lwarx %0,0,%1\n"
--                          "      xor. %0,%3,%0\n"
--                          "      bne 1f\n"
--                          "      stwcx. %2,0,%1\n"
--                          "      bne- 0b\n"
--                          "1:    "
--                          : "=&r" (ret)
--                          : "r" (p), "r" (1), "r" (0)
--                          : "cr0", "memory");
--    return ret;
--}
--#endif
--
--#ifdef __i386__
--static inline int testandset (int *p)
--{
--    long int readval = 0;
--    
--    __asm__ __volatile__ ("lock; cmpxchgl %2, %0"
--                          : "+m" (*p), "+a" (readval)
--                          : "r" (1)
--                          : "cc");
--    return readval;
--}
--#endif
--
--#ifdef __x86_64__
--static inline int testandset (int *p)
--{
--    long int readval = 0;
--    
--    __asm__ __volatile__ ("lock; cmpxchgl %2, %0"
--                          : "+m" (*p), "+a" (readval)
--                          : "r" (1)
--                          : "cc");
--    return readval;
--}
--#endif
--
--#ifdef __s390__
--static inline int testandset (int *p)
--{
--    int ret;
--
--    __asm__ __volatile__ ("0: cs    %0,%1,0(%2)\n"
--			  "   jl    0b"
--			  : "=&d" (ret)
--			  : "r" (1), "a" (p), "0" (*p) 
--			  : "cc", "memory" );
--    return ret;
--}
--#endif
--
--#ifdef __alpha__
--static inline int testandset (int *p)
--{
--    int ret;
--    unsigned long one;
--
--    __asm__ __volatile__ ("0:	mov 1,%2\n"
--			  "	ldl_l %0,%1\n"
--			  "	stl_c %2,%1\n"
--			  "	beq %2,1f\n"
--			  ".subsection 2\n"
--			  "1:	br 0b\n"
--			  ".previous"
--			  : "=r" (ret), "=m" (*p), "=r" (one)
--			  : "m" (*p));
--    return ret;
--}
--#endif
--
--#ifdef __sparc__
--static inline int testandset (int *p)
--{
--	int ret;
--
--	__asm__ __volatile__("ldstub	[%1], %0"
--			     : "=r" (ret)
--			     : "r" (p)
--			     : "memory");
--
--	return (ret ? 1 : 0);
--}
--#endif
--
--#ifdef __arm__
--static inline int testandset (int *spinlock)
--{
--    register unsigned int ret;
--    __asm__ __volatile__("swp %0, %1, [%2]"
--                         : "=r"(ret)
--                         : "0"(1), "r"(spinlock));
--    
--    return ret;
--}
--#endif
--
--#ifdef __mc68000
--static inline int testandset (int *p)
--{
--    char ret;
--    __asm__ __volatile__("tas %1; sne %0"
--                         : "=r" (ret)
--                         : "m" (p)
--                         : "cc","memory");
--    return ret;
--}
--#endif
--
--#ifdef __ia64
--#include <ia64intrin.h>
--
--static inline int testandset (int *p)
--{
--    return __sync_lock_test_and_set (p, 1);
--}
--#endif
--
--typedef int spinlock_t;
--
--#define SPIN_LOCK_UNLOCKED 0
--
--#if defined(CONFIG_USER_ONLY)
--static inline void spin_lock(spinlock_t *lock)
--{
--    while (testandset(lock));
--}
--
--static inline void spin_unlock(spinlock_t *lock)
--{
--    *lock = 0;
--}
--
--static inline int spin_trylock(spinlock_t *lock)
--{
--    return !testandset(lock);
--}
--#else
--static inline void spin_lock(spinlock_t *lock)
--{
--}
--
--static inline void spin_unlock(spinlock_t *lock)
--{
--}
--
--static inline int spin_trylock(spinlock_t *lock)
--{
--    return 1;
--}
--#endif
-+#include "qemu_spinlock.h"
- 
- extern spinlock_t tb_lock;
- 
-Index: qemu/linux-user/arm/syscall.h
-===================================================================
---- qemu.orig/linux-user/arm/syscall.h	2006-03-09 19:18:11.000000000 +0000
-+++ qemu/linux-user/arm/syscall.h	2006-08-26 16:31:53.000000000 +0100
-@@ -28,7 +28,9 @@
- #define ARM_SYSCALL_BASE	0x900000
- #define ARM_THUMB_SYSCALL	0
- 
--#define ARM_NR_cacheflush (ARM_SYSCALL_BASE + 0xf0000 + 2)
-+#define ARM_NR_BASE	  0xf0000
-+#define ARM_NR_cacheflush (ARM_NR_BASE + 2)
-+#define ARM_NR_set_tls	  (ARM_NR_BASE + 5)
- 
- #define ARM_NR_semihosting	  0x123456
- #define ARM_NR_thumb_semihosting  0xAB
-Index: qemu/linux-user/main.c
-===================================================================
---- qemu.orig/linux-user/main.c	2006-08-26 16:28:40.000000000 +0100
-+++ qemu/linux-user/main.c	2006-08-26 16:31:53.000000000 +0100
-@@ -309,6 +309,50 @@
-     }
- }
- 
-+/* Handle a jump to the kernel code page.  */
-+static int
-+do_kernel_trap(CPUARMState *env)
-+{
-+    uint32_t addr;
-+    uint32_t *ptr;
-+    uint32_t cpsr;
-+
-+    switch (env->regs[15]) {
-+    case 0xffff0fc0: /* __kernel_cmpxchg */
-+        /* XXX: This only works between threads, not between processes.
-+           Use native atomic operations.  */
-+        /* ??? This probably breaks horribly if the access segfaults.  */
-+        cpu_lock();
-+        ptr = (uint32_t *)env->regs[2];
-+        cpsr = cpsr_read(env);
-+        if (*ptr == env->regs[0]) {
-+            *ptr = env->regs[1];
-+            env->regs[0] = 0;
-+            cpsr |= CPSR_C;
-+        } else {
-+            env->regs[0] = -1;
-+            cpsr &= ~CPSR_C;
-+        }
-+        cpsr_write(env, cpsr, CPSR_C);
-+        cpu_unlock();
-+        break;
-+    case 0xffff0fe0: /* __kernel_get_tls */
-+        env->regs[0] = env->cp15.c13_tls;
-+        break;
-+    default:
-+        return 1;
-+    }
-+    /* Jump back to the caller.  */
-+    addr = env->regs[14];
-+    if (addr & 1) {
-+        env->thumb = 1;
-+        addr &= ~1;
-+    }
-+    env->regs[15] = addr;
-+
-+    return 0;
-+}
-+
- void cpu_loop(CPUARMState *env)
- {
-     int trapnr;
-@@ -365,10 +409,8 @@
-                     }
-                 }
- 
--                if (n == ARM_NR_cacheflush) {
--                    arm_cache_flush(env->regs[0], env->regs[1]);
--                } else if (n == ARM_NR_semihosting
--                           || n == ARM_NR_thumb_semihosting) {
-+                if (n == ARM_NR_semihosting
-+                    || n == ARM_NR_thumb_semihosting) {
-                     env->regs[0] = do_arm_semihosting (env);
-                 } else if (n == 0 || n >= ARM_SYSCALL_BASE
-                            || (env->thumb && n == ARM_THUMB_SYSCALL)) {
-@@ -379,14 +421,34 @@
-                         n -= ARM_SYSCALL_BASE;
-                         env->eabi = 0;
-                     }
--                    env->regs[0] = do_syscall(env, 
--                                              n, 
--                                              env->regs[0],
--                                              env->regs[1],
--                                              env->regs[2],
--                                              env->regs[3],
--                                              env->regs[4],
--                                              env->regs[5]);
-+                    if ( n > ARM_NR_BASE) {
-+                        switch (n)
-+                          {
-+                          case ARM_NR_cacheflush:
-+                              arm_cache_flush(env->regs[0], env->regs[1]);
-+                              break;
-+#ifdef USE_NPTL
-+                          case ARM_NR_set_tls:
-+                              cpu_set_tls(env, env->regs[0]);
-+                              env->regs[0] = 0;
-+                              break;
-+#endif
-+                          default:
-+                              printf ("Error: Bad syscall: %x\n", n);
-+                              goto error;
-+                          }
-+                      }
-+                    else
-+                      {
-+                        env->regs[0] = do_syscall(env, 
-+                                                  n, 
-+                                                  env->regs[0],
-+                                                  env->regs[1],
-+                                                  env->regs[2],
-+                                                  env->regs[3],
-+                                                  env->regs[4],
-+                                                  env->regs[5]);
-+                      }
-                 } else {
-                     goto error;
-                 }
-@@ -425,6 +487,10 @@
-                   }
-             }
-             break;
-+        case EXCP_KERNEL_TRAP:
-+            if (do_kernel_trap(env))
-+              goto error;
-+            break;
-         default:
-         error:
-             fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", 
-@@ -1639,6 +1705,10 @@
-         ts->heap_base = info->brk;
-         /* This will be filled in on the first SYS_HEAPINFO call.  */
-         ts->heap_limit = 0;
-+        /* Register the magic kernel code page.  The cpu will generate a
-+           special exception when it tries to execute code here.  We can't
-+           put real code here because it may be in use by the host kernel.  */
-+        page_set_flags(0xffff0000, 0xffff0fff, 0);
-     }
- #elif defined(TARGET_SPARC)
-     {
-Index: qemu/linux-user/qemu.h
-===================================================================
---- qemu.orig/linux-user/qemu.h	2006-08-26 16:28:40.000000000 +0100
-+++ qemu/linux-user/qemu.h	2006-08-26 16:33:50.000000000 +0100
-@@ -75,6 +75,9 @@
-     uint32_t v86mask;
- #endif
-     int used; /* non zero if used */
-+#ifdef USE_NPTL
-+    uint32_t *child_tidptr;
-+#endif
-     struct image_info *info;
-     uint8_t stack[0];
- } __attribute__((aligned(16))) TaskState;
-Index: qemu/linux-user/syscall.c
-===================================================================
---- qemu.orig/linux-user/syscall.c	2006-08-26 16:28:40.000000000 +0100
-+++ qemu/linux-user/syscall.c	2006-08-26 16:31:53.000000000 +0100
-@@ -66,9 +66,18 @@
- #include <linux/kd.h>
- 
- #include "qemu.h"
-+#include "qemu_spinlock.h"
- 
- //#define DEBUG
- 
-+#ifdef USE_NPTL
-+#define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \
-+    CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)
-+#else
-+/* XXX: Hardcode the above values.  */
-+#define CLONE_NPTL_FLAGS2 0
-+#endif
-+
- #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC)
- /* 16 bit uid wrappers emulation */
- #define USE_UID16
-@@ -1602,20 +1611,38 @@
-    thread/process */
- #define NEW_STACK_SIZE 8192
- 
-+#ifdef USE_NPTL
-+static spinlock_t nptl_lock = SPIN_LOCK_UNLOCKED;
-+#endif
-+
- static int clone_func(void *arg)
- {
-     CPUState *env = arg;
-+#ifdef HAVE_NPTL
-+    /* Wait until the parent has finshed initializing the tls state.  */
-+    while (!spin_trylock(&nptl_lock))
-+        usleep(1);
-+    spin_unlock(&nptl_lock);
-+#endif
-     cpu_loop(env);
-     /* never exits */
-     return 0;
- }
- 
--int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
-+int do_fork(CPUState *env, unsigned int flags, unsigned long newsp,
-+            uint32_t *parent_tidptr, void *newtls,
-+            uint32_t *child_tidptr)
- {
-     int ret;
-     TaskState *ts;
-     uint8_t *new_stack;
-     CPUState *new_env;
-+#ifdef USE_NPTL
-+    unsigned int nptl_flags;
-+
-+    if (flags & CLONE_PARENT_SETTID)
-+        *parent_tidptr = gettid();
-+#endif
-     
-     if (flags & CLONE_VM) {
-         ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
-@@ -1665,16 +1692,60 @@
- #error unsupported target CPU
- #endif
-         new_env->opaque = ts;
-+#ifdef USE_NPTL
-+     nptl_flags = flags;
-+     flags &= ~CLONE_NPTL_FLAGS2;
-+     if (nptl_flags & CLONE_CHILD_CLEARTID) {
-+          ts->child_tidptr = child_tidptr;
-+     }
-+     if (nptl_flags & CLONE_SETTLS)
-+         cpu_set_tls (new_env, newtls);
-+     /* Grab the global cpu lock so that the thread setup appears
-+        atomic.  */
-+     if (nptl_flags & CLONE_CHILD_SETTID)
-+         spin_lock(&nptl_lock);
-+#else
-+     if (flags & CLONE_NPTL_FLAGS2)
-+         return -EINVAL;
-+#endif
-+
- #ifdef __ia64__
-         ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
- #else
- 	ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
- #endif
-+#ifdef USE_NPTL
-+     if (ret != -1) {
-+         if (nptl_flags & CLONE_CHILD_SETTID)
-+             *child_tidptr = ret;
-+     }
-+     /* Allow the child to continue.  */
-+     if (nptl_flags & CLONE_CHILD_SETTID)
-+         spin_unlock(&nptl_lock);
-+#endif
-     } else {
--        /* if no CLONE_VM, we consider it is a fork */
--        if ((flags & ~CSIGNAL) != 0)
--            return -EINVAL;
--        ret = fork();
-+    /* if no CLONE_VM, we consider it is a fork */
-+    if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0)
-+          return -EINVAL;
-+      ret = fork();
-+#ifdef USE_NPTL
-+     /* There is a race condition here.  The parent process could
-+        theoretically read the TID in the child process before the child
-+        tid is set.  This would require using either ptrace
-+        (not implemented) or having *_tidptr to point at a shared memory
-+        mapping.  We can't repeat the spinlock hack used above because
-+        the child process gets its own copy of the lock.  */
-+     if (ret == 0) {
-+         /* Child Process.  */
-+         if (flags & CLONE_CHILD_SETTID)
-+             *child_tidptr = gettid();
-+         ts = (TaskState *)env->opaque;
-+         if (flags & CLONE_CHILD_CLEARTID)
-+             ts->child_tidptr = child_tidptr;
-+         if (flags & CLONE_SETTLS)
-+             cpu_set_tls (env, newtls);
-+     }
-+#endif
-     }
-     return ret;
- }
-@@ -1918,7 +1989,7 @@
-         ret = do_brk(arg1);
-         break;
-     case TARGET_NR_fork:
--        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0));
-+        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, NULL, NULL, NULL));
-         break;
-     case TARGET_NR_waitpid:
-         {
-@@ -2989,7 +3060,8 @@
-         ret = get_errno(fsync(arg1));
-         break;
-     case TARGET_NR_clone:
--        ret = get_errno(do_fork(cpu_env, arg1, arg2));
-+        ret = get_errno(do_fork(cpu_env, arg1, arg2, (uint32_t *)arg3,
-+                        (void *)arg4, (uint32_t *)arg5));
-         break;
- #ifdef __NR_exit_group
-         /* new thread calls */
-@@ -3339,7 +3411,8 @@
- #endif
- #ifdef TARGET_NR_vfork
-     case TARGET_NR_vfork:
--        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0));
-+        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0,
-+                                NULL, NULL, NULL));
-         break;
- #endif
- #ifdef TARGET_NR_ugetrlimit
-@@ -3838,4 +3911,3 @@
- #endif
-     return ret;
- }
--
-Index: qemu/target-arm/cpu.h
-===================================================================
---- qemu.orig/target-arm/cpu.h	2006-03-09 19:18:27.000000000 +0000
-+++ qemu/target-arm/cpu.h	2006-08-26 16:31:53.000000000 +0100
-@@ -35,6 +35,9 @@
- #define EXCP_IRQ             5
- #define EXCP_FIQ             6
- #define EXCP_BKPT            7
-+#define EXCP_KERNEL_TRAP     8   /* Jumped to kernel code page.  */
-+
-+
- 
- /* We currently assume float and double are IEEE single and double
-    precision respectively.
-@@ -85,6 +88,7 @@
-         uint32_t c9_data;
-         uint32_t c13_fcse; /* FCSE PID.  */
-         uint32_t c13_context; /* Context ID.  */
-+        uint32_t c13_tls; /* Paul Brook told me to just add this ;)  */
-     } cp15;
- 
-     /* Internal CPU feature flags.  */
-@@ -135,6 +139,15 @@
- int cpu_arm_signal_handler(int host_signum, struct siginfo *info, 
-                            void *puc);
- 
-+void cpu_lock(void);
-+void cpu_unlock(void);
-+#if defined(USE_NPTL)
-+static inline void cpu_set_tls(CPUARMState *env, void *newtls)
-+{
-+  env->cp15.c13_tls = (uint32_t)newtls;
-+}
-+#endif
-+
- #define CPSR_M (0x1f)
- #define CPSR_T (1 << 5)
- #define CPSR_F (1 << 6)
-@@ -146,7 +159,11 @@
- #define CPSR_J (1 << 24)
- #define CPSR_IT_0_1 (3 << 25)
- #define CPSR_Q (1 << 27)
--#define CPSR_NZCV (0xf << 28)
-+#define CPSR_V (1 << 28)
-+#define CPSR_C (1 << 29)
-+#define CPSR_Z (1 << 30)
-+#define CPSR_N (1 << 31)
-+#define CPSR_NZCV (CPSR_N | CPSR_Z | CPSR_C | CPSR_V)
- 
- #define CACHED_CPSR_BITS (CPSR_T | CPSR_Q | CPSR_NZCV)
- /* Return the current CPSR value.  */
-Index: qemu/target-arm/exec.h
-===================================================================
---- qemu.orig/target-arm/exec.h	2006-03-09 19:18:27.000000000 +0000
-+++ qemu/target-arm/exec.h	2006-08-26 16:31:53.000000000 +0100
-@@ -51,8 +51,6 @@
- 
- /* In op_helper.c */
- 
--void cpu_lock(void);
--void cpu_unlock(void);
- void helper_set_cp15(CPUState *, uint32_t, uint32_t);
- uint32_t helper_get_cp15(CPUState *, uint32_t);
- 
-Index: qemu/target-arm/op.c
-===================================================================
---- qemu.orig/target-arm/op.c	2006-08-26 16:28:48.000000000 +0100
-+++ qemu/target-arm/op.c	2006-08-26 16:31:53.000000000 +0100
-@@ -891,6 +891,12 @@
-     cpu_loop_exit();
- }
- 
-+void OPPROTO op_kernel_trap(void)
-+{
-+    env->exception_index = EXCP_KERNEL_TRAP;
-+    cpu_loop_exit();
-+}
-+
- /* VFP support.  We follow the convention used for VFP instrunctions:
-    Single precition routines have a "s" suffix, double precision a
-    "d" suffix.  */
-Index: qemu/target-arm/translate.c
-===================================================================
---- qemu.orig/target-arm/translate.c	2006-08-26 16:28:48.000000000 +0100
-+++ qemu/target-arm/translate.c	2006-08-26 16:31:53.000000000 +0100
-@@ -2382,6 +2382,7 @@
-     s->is_jmp = DISAS_JUMP;
- }
- 
-+
- /* generate intermediate code in gen_opc_buf and gen_opparam_buf for
-    basic block 'tb'. If search_pc is TRUE, also generate PC
-    information for each intermediate instruction. */
-@@ -2416,6 +2417,15 @@
-     nb_gen_labels = 0;
-     lj = -1;
-     do {
-+#ifdef CONFIG_USER_ONLY
-+        /* Intercept jump to the magic kernel page.  */
-+        if (dc->pc > 0xffff0000) {
-+            gen_op_kernel_trap();
-+            dc->is_jmp = DISAS_UPDATE;
-+            break;
-+        }
-+#endif
-+
-         if (env->nb_breakpoints > 0) {
-             for(j = 0; j < env->nb_breakpoints; j++) {
-                 if (env->breakpoints[j] == dc->pc) {
-Index: qemu/qemu_spinlock.h
-===================================================================
---- /dev/null	1970-01-01 00:00:00.000000000 +0000
-+++ qemu/qemu_spinlock.h	2006-08-26 16:31:53.000000000 +0100
-@@ -0,0 +1,182 @@
-+/*
-+ * internal execution defines for qemu
-+ *
-+ *  Copyright (c) 2003 Fabrice Bellard
-+ *
-+ * This library is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU Lesser General Public
-+ * License as published by the Free Software Foundation; either
-+ * version 2 of the License, or (at your option) any later version.
-+ *
-+ * This library is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-+ * Lesser General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU Lesser General Public
-+ * License along with this library; if not, write to the Free Software
-+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-+ */
-+
-+#ifndef _QEMU_SPINLOCK_H
-+#define _QEMU_SPINLOCK_H
-+
-+#ifdef __powerpc__
-+static inline int testandset (int *p)
-+{
-+    int ret;
-+    __asm__ __volatile__ (
-+                          "0:    lwarx %0,0,%1\n"
-+                          "      xor. %0,%3,%0\n"
-+                          "      bne 1f\n"
-+                          "      stwcx. %2,0,%1\n"
-+                          "      bne- 0b\n"
-+                          "1:    "
-+                          : "=&r" (ret)
-+                          : "r" (p), "r" (1), "r" (0)
-+                          : "cr0", "memory");
-+    return ret;
-+}
-+#endif
-+
-+#ifdef __i386__
-+static inline int testandset (int *p)
-+{
-+    long int readval = 0;
-+
-+    __asm__ __volatile__ ("lock; cmpxchgl %2, %0"
-+                          : "+m" (*p), "+a" (readval)
-+                          : "r" (1)
-+                          : "cc");
-+    return readval;
-+}
-+#endif
-+
-+#ifdef __x86_64__
-+static inline int testandset (int *p)
-+{
-+    long int readval = 0;
-+
-+    __asm__ __volatile__ ("lock; cmpxchgl %2, %0"
-+                          : "+m" (*p), "+a" (readval)
-+                          : "r" (1)
-+                          : "cc");
-+    return readval;
-+}
-+#endif
-+
-+#ifdef __s390__
-+static inline int testandset (int *p)
-+{
-+    int ret;
-+
-+    __asm__ __volatile__ ("0: cs    %0,%1,0(%2)\n"
-+                         "   jl    0b"
-+                         : "=&d" (ret)
-+                         : "r" (1), "a" (p), "0" (*p)
-+                         : "cc", "memory" );
-+    return ret;
-+}
-+#endif
-+
-+#ifdef __alpha__
-+static inline int testandset (int *p)
-+{
-+    int ret;
-+    unsigned long one;
-+
-+    __asm__ __volatile__ ("0:  mov 1,%2\n"
-+                         "     ldl_l %0,%1\n"
-+                         "     stl_c %2,%1\n"
-+                         "     beq %2,1f\n"
-+                         ".subsection 2\n"
-+                         "1:   br 0b\n"
-+                         ".previous"
-+                         : "=r" (ret), "=m" (*p), "=r" (one)
-+                         : "m" (*p));
-+    return ret;
-+}
-+#endif
-+
-+#ifdef __sparc__
-+static inline int testandset (int *p)
-+{
-+       int ret;
-+
-+       __asm__ __volatile__("ldstub    [%1], %0"
-+                            : "=r" (ret)
-+                            : "r" (p)
-+                            : "memory");
-+
-+       return (ret ? 1 : 0);
-+}
-+#endif
-+
-+#ifdef __arm__
-+static inline int testandset (int *spinlock)
-+{
-+    register unsigned int ret;
-+    __asm__ __volatile__("swp %0, %1, [%2]"
-+                         : "=r"(ret)
-+                         : "0"(1), "r"(spinlock));
-+
-+    return ret;
-+}
-+#endif
-+
-+#ifdef __mc68000
-+static inline int testandset (int *p)
-+{
-+    char ret;
-+    __asm__ __volatile__("tas %1; sne %0"
-+                         : "=r" (ret)
-+                         : "m" (p)
-+                         : "cc","memory");
-+    return ret;
-+}
-+#endif
-+
-+#ifdef __ia64
-+#include <ia64intrin.h>
-+
-+static inline int testandset (int *p)
-+{
-+    return __sync_lock_test_and_set (p, 1);
-+}
-+#endif
-+
-+typedef int spinlock_t;
-+
-+#define SPIN_LOCK_UNLOCKED 0
-+
-+#if defined(CONFIG_USER_ONLY)
-+static inline void spin_lock(spinlock_t *lock)
-+{
-+    while (testandset(lock));
-+}
-+
-+static inline void spin_unlock(spinlock_t *lock)
-+{
-+    *lock = 0;
-+}
-+
-+static inline int spin_trylock(spinlock_t *lock)
-+{
-+    return !testandset(lock);
-+}
-+#else
-+static inline void spin_lock(spinlock_t *lock)
-+{
-+}
-+
-+static inline void spin_unlock(spinlock_t *lock)
-+{
-+}
-+
-+static inline int spin_trylock(spinlock_t *lock)
-+{
-+    return 1;
-+}
-+#endif
-+
-+#endif /* ! _QEMU_SPINLOCK_H */