Preliminary Sparc TCG target

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3995 c046a42c-6fe2-441c-8c8c-71466251a162

Makefile.target

@@ -177,6 +177,9 @@ LIBOBJS=exec.o kqemu.o translate-all.o cpu-exec.o\
 # TCG code generator
 LIBOBJS+= tcg/tcg.o tcg/tcg-dyngen.o tcg/tcg-runtime.o
 CPPFLAGS+=-I$(SRC_PATH)/tcg -I$(SRC_PATH)/tcg/$(ARCH)
+ifeq ($(ARCH),sparc64)
+CPPFLAGS+=-I$(SRC_PATH)/tcg/sparc
+endif
 ifdef CONFIG_SOFTFLOAT
 LIBOBJS+=fpu/softfloat.o
 else

dyngen.c

@@ -1615,12 +1615,14 @@ void gen_code(const char *name, host_ulong offset, host_ulong size,
             error("No save at the beginning of %s", name);
         }
 
+#if 0
         /* Skip a preceeding nop, if present.  */
         if (p > p_start) {
             skip_insn = get32((uint32_t *)(p - 0x4));
             if (skip_insn == 0x01000000)
                 p -= 4;
         }
+#endif
 
         copy_size = p - p_start;
     }

tcg/sparc/tcg-target.h

@@ -0,0 +1,110 @@
+/*
+ * Tiny Code Generator for QEMU
+ *
+ * Copyright (c) 2008 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#define TCG_TARGET_SPARC 1
+
+#if defined(__sparc_v9__) && !defined(__sparc_v8plus__)
+#define TCG_TARGET_REG_BITS 64
+#else
+#define TCG_TARGET_REG_BITS 32
+#endif
+
+#define TCG_TARGET_WORDS_BIGENDIAN
+
+#define TCG_TARGET_NB_REGS 32
+
+enum {
+    TCG_REG_G0 = 0,
+    TCG_REG_G1,
+    TCG_REG_G2,
+    TCG_REG_G3,
+    TCG_REG_G4,
+    TCG_REG_G5,
+    TCG_REG_G6,
+    TCG_REG_G7,
+    TCG_REG_O0,
+    TCG_REG_O1,
+    TCG_REG_O2,
+    TCG_REG_O3,
+    TCG_REG_O4,
+    TCG_REG_O5,
+    TCG_REG_O6,
+    TCG_REG_O7,
+    TCG_REG_L0,
+    TCG_REG_L1,
+    TCG_REG_L2,
+    TCG_REG_L3,
+    TCG_REG_L4,
+    TCG_REG_L5,
+    TCG_REG_L6,
+    TCG_REG_L7,
+    TCG_REG_I0,
+    TCG_REG_I1,
+    TCG_REG_I2,
+    TCG_REG_I3,
+    TCG_REG_I4,
+    TCG_REG_I5,
+    TCG_REG_I6,
+    TCG_REG_I7,
+};
+
+#define TCG_CT_CONST_S11 0x100
+#define TCG_CT_CONST_S13 0x200
+
+/* used for function call generation */
+#define TCG_REG_CALL_STACK TCG_REG_O6
+#define TCG_TARGET_STACK_ALIGN 16
+
+/* optional instructions */
+//#define TCG_TARGET_HAS_bswap_i32
+//#define TCG_TARGET_HAS_bswap_i64
+
+/* Note: must be synced with dyngen-exec.h */
+#ifdef HOST_SOLARIS
+#define TCG_AREG0 TCG_REG_G2
+#define TCG_AREG1 TCG_REG_G3
+#define TCG_AREG2 TCG_REG_G4
+#define TCG_AREG3 TCG_REG_G5
+#define TCG_AREG4 TCG_REG_G6
+#elif defined(__sparc_v9__)
+#define TCG_AREG0 TCG_REG_G1
+#define TCG_AREG1 TCG_REG_G4
+#define TCG_AREG2 TCG_REG_G5
+#define TCG_AREG3 TCG_REG_G7
+#else
+#define TCG_AREG0 TCG_REG_G6
+#define TCG_AREG1 TCG_REG_G1
+#define TCG_AREG2 TCG_REG_G2
+#define TCG_AREG3 TCG_REG_G3
+#endif
+
+static inline void flush_icache_range(unsigned long start, unsigned long stop)
+{
+    unsigned long p;
+
+    p = start & ~(8UL - 1UL);
+    stop = (stop + (8UL - 1UL)) & ~(8UL - 1UL);
+
+    for (; p < stop; p += 8)
+        __asm__ __volatile__("flush\t%0" : : "r" (p));
+}