--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/qemu-symbian-svp/tcg/tcg.h Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,467 @@
+/*
+ * 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.
+ */
+#include "tcg-target.h"
+
+#if TCG_TARGET_REG_BITS == 32
+typedef int32_t tcg_target_long;
+typedef uint32_t tcg_target_ulong;
+#define TCG_PRIlx PRIx32
+#define TCG_PRIld PRId32
+#elif TCG_TARGET_REG_BITS == 64
+typedef int64_t tcg_target_long;
+typedef uint64_t tcg_target_ulong;
+#define TCG_PRIlx PRIx64
+#define TCG_PRIld PRId64
+#else
+#error unsupported
+#endif
+
+#if TCG_TARGET_NB_REGS <= 32
+typedef uint32_t TCGRegSet;
+#elif TCG_TARGET_NB_REGS <= 64
+typedef uint64_t TCGRegSet;
+#else
+#error unsupported
+#endif
+
+enum {
+#define DEF(s, n, copy_size) INDEX_op_ ## s,
+#include "tcg-opc.h"
+#undef DEF
+ NB_OPS,
+};
+
+#define tcg_regset_clear(d) (d) = 0
+#define tcg_regset_set(d, s) (d) = (s)
+#define tcg_regset_set32(d, reg, val32) (d) |= (val32) << (reg)
+#define tcg_regset_set_reg(d, r) (d) |= 1 << (r)
+#define tcg_regset_reset_reg(d, r) (d) &= ~(1 << (r))
+#define tcg_regset_test_reg(d, r) (((d) >> (r)) & 1)
+#define tcg_regset_or(d, a, b) (d) = (a) | (b)
+#define tcg_regset_and(d, a, b) (d) = (a) & (b)
+#define tcg_regset_andnot(d, a, b) (d) = (a) & ~(b)
+#define tcg_regset_not(d, a) (d) = ~(a)
+
+typedef struct TCGRelocation {
+ struct TCGRelocation *next;
+ int type;
+ uint8_t *ptr;
+ tcg_target_long addend;
+} TCGRelocation;
+
+typedef struct TCGLabel {
+ int has_value;
+ union {
+ tcg_target_ulong value;
+ TCGRelocation *first_reloc;
+ } u;
+} TCGLabel;
+
+typedef struct TCGPool {
+ struct TCGPool *next;
+ int size;
+ uint8_t data[0] __attribute__ ((aligned));
+} TCGPool;
+
+#define TCG_POOL_CHUNK_SIZE 32768
+
+#define TCG_MAX_LABELS 512
+
+#define TCG_MAX_TEMPS 512
+
+/* when the size of the arguments of a called function is smaller than
+ this value, they are statically allocated in the TB stack frame */
+#define TCG_STATIC_CALL_ARGS_SIZE 128
+
+typedef int TCGType;
+
+#define TCG_TYPE_I32 0
+#define TCG_TYPE_I64 1
+#define TCG_TYPE_COUNT 2 /* number of different types */
+
+#if TCG_TARGET_REG_BITS == 32
+#define TCG_TYPE_PTR TCG_TYPE_I32
+#else
+#define TCG_TYPE_PTR TCG_TYPE_I64
+#endif
+
+typedef tcg_target_ulong TCGArg;
+
+/* Define a type and accessor macros for varables. Using a struct is
+ nice because it gives some level of type safely. Ideally the compiler
+ be able to see through all this. However in practice this is not true,
+ expecially on targets with braindamaged ABIs (e.g. i386).
+ We use plain int by default to avoid this runtime overhead.
+ Users of tcg_gen_* don't need to know about any of this, and should
+ treat TCGv as an opaque type.
+ In additon we do typechecking for different types of variables. TCGv_i32
+ and TCGv_i64 are 32/64-bit variables respectively. TCGv and TCGv_ptr
+ are aliases for target_ulong and host pointer sized values respectively.
+ */
+
+//#define DEBUG_TCGV 1
+
+#ifdef DEBUG_TCGV
+
+typedef struct
+{
+ int i32;
+} TCGv_i32;
+
+typedef struct
+{
+ int i64;
+} TCGv_i64;
+
+#define MAKE_TCGV_I32(i) __extension__ \
+ ({ TCGv_i32 make_tcgv_tmp = {i}; make_tcgv_tmp;})
+#define MAKE_TCGV_I64(i) __extension__ \
+ ({ TCGv_i64 make_tcgv_tmp = {i}; make_tcgv_tmp;})
+#define GET_TCGV_I32(t) ((t).i32)
+#define GET_TCGV_I64(t) ((t).i64)
+#if TCG_TARGET_REG_BITS == 32
+#define TCGV_LOW(t) MAKE_TCGV_I32(GET_TCGV_I64(t))
+#define TCGV_HIGH(t) MAKE_TCGV_I32(GET_TCGV_I64(t) + 1)
+#endif
+
+#else /* !DEBUG_TCGV */
+
+typedef int TCGv_i32;
+typedef int TCGv_i64;
+#define MAKE_TCGV_I32(x) (x)
+#define MAKE_TCGV_I64(x) (x)
+#define GET_TCGV_I32(t) (t)
+#define GET_TCGV_I64(t) (t)
+#if TCG_TARGET_REG_BITS == 32
+#define TCGV_LOW(t) (t)
+#define TCGV_HIGH(t) ((t) + 1)
+#endif
+
+#endif /* DEBUG_TCGV */
+
+/* Dummy definition to avoid compiler warnings. */
+#define TCGV_UNUSED_I32(x) x = MAKE_TCGV_I32(-1)
+#define TCGV_UNUSED_I64(x) x = MAKE_TCGV_I64(-1)
+
+/* call flags */
+#define TCG_CALL_TYPE_MASK 0x000f
+#define TCG_CALL_TYPE_STD 0x0000 /* standard C call */
+#define TCG_CALL_TYPE_REGPARM_1 0x0001 /* i386 style regparm call (1 reg) */
+#define TCG_CALL_TYPE_REGPARM_2 0x0002 /* i386 style regparm call (2 regs) */
+#define TCG_CALL_TYPE_REGPARM 0x0003 /* i386 style regparm call (3 regs) */
+/* A pure function only reads its arguments and globals variables and
+ cannot raise exceptions. Hence a call to a pure function can be
+ safely suppressed if the return value is not used. */
+#define TCG_CALL_PURE 0x0010
+
+/* used to align parameters */
+#define TCG_CALL_DUMMY_TCGV MAKE_TCGV_I32(-1)
+#define TCG_CALL_DUMMY_ARG ((TCGArg)(-1))
+
+typedef enum {
+ TCG_COND_EQ,
+ TCG_COND_NE,
+ TCG_COND_LT,
+ TCG_COND_GE,
+ TCG_COND_LE,
+ TCG_COND_GT,
+ /* unsigned */
+ TCG_COND_LTU,
+ TCG_COND_GEU,
+ TCG_COND_LEU,
+ TCG_COND_GTU,
+} TCGCond;
+
+#define TEMP_VAL_DEAD 0
+#define TEMP_VAL_REG 1
+#define TEMP_VAL_MEM 2
+#define TEMP_VAL_CONST 3
+
+/* XXX: optimize memory layout */
+typedef struct TCGTemp {
+ TCGType base_type;
+ TCGType type;
+ int val_type;
+ int reg;
+ tcg_target_long val;
+ int mem_reg;
+ tcg_target_long mem_offset;
+ unsigned int fixed_reg:1;
+ unsigned int mem_coherent:1;
+ unsigned int mem_allocated:1;
+ unsigned int temp_local:1; /* If true, the temp is saved accross
+ basic blocks. Otherwise, it is not
+ preserved accross basic blocks. */
+ unsigned int temp_allocated:1; /* never used for code gen */
+ /* index of next free temp of same base type, -1 if end */
+ int next_free_temp;
+ const char *name;
+} TCGTemp;
+
+typedef struct TCGHelperInfo {
+ tcg_target_ulong func;
+ const char *name;
+} TCGHelperInfo;
+
+typedef struct TCGContext TCGContext;
+
+struct TCGContext {
+ uint8_t *pool_cur, *pool_end;
+ TCGPool *pool_first, *pool_current;
+ TCGLabel *labels;
+ int nb_labels;
+ TCGTemp *temps; /* globals first, temps after */
+ int nb_globals;
+ int nb_temps;
+ /* index of free temps, -1 if none */
+ int first_free_temp[TCG_TYPE_COUNT * 2];
+
+ /* goto_tb support */
+ uint8_t *code_buf;
+ unsigned long *tb_next;
+ uint16_t *tb_next_offset;
+ uint16_t *tb_jmp_offset; /* != NULL if USE_DIRECT_JUMP */
+
+ /* liveness analysis */
+ uint16_t *op_dead_iargs; /* for each operation, each bit tells if the
+ corresponding input argument is dead */
+
+ /* tells in which temporary a given register is. It does not take
+ into account fixed registers */
+ int reg_to_temp[TCG_TARGET_NB_REGS];
+ TCGRegSet reserved_regs;
+ tcg_target_long current_frame_offset;
+ tcg_target_long frame_start;
+ tcg_target_long frame_end;
+ int frame_reg;
+
+ uint8_t *code_ptr;
+ TCGTemp static_temps[TCG_MAX_TEMPS];
+
+ TCGHelperInfo *helpers;
+ int nb_helpers;
+ int allocated_helpers;
+ int helpers_sorted;
+
+#ifdef CONFIG_PROFILER
+ /* profiling info */
+ int64_t tb_count1;
+ int64_t tb_count;
+ int64_t op_count; /* total insn count */
+ int op_count_max; /* max insn per TB */
+ int64_t temp_count;
+ int temp_count_max;
+ int64_t old_op_count;
+ int64_t del_op_count;
+ int64_t code_in_len;
+ int64_t code_out_len;
+ int64_t interm_time;
+ int64_t code_time;
+ int64_t la_time;
+ int64_t restore_count;
+ int64_t restore_time;
+#endif
+};
+
+extern TCGContext tcg_ctx;
+extern uint16_t *gen_opc_ptr;
+extern TCGArg *gen_opparam_ptr;
+extern uint16_t gen_opc_buf[];
+extern TCGArg gen_opparam_buf[];
+
+/* pool based memory allocation */
+
+void *tcg_malloc_internal(TCGContext *s, int size);
+void tcg_pool_reset(TCGContext *s);
+void tcg_pool_delete(TCGContext *s);
+
+static inline void *tcg_malloc(int size)
+{
+ TCGContext *s = &tcg_ctx;
+ uint8_t *ptr, *ptr_end;
+ size = (size + sizeof(long) - 1) & ~(sizeof(long) - 1);
+ ptr = s->pool_cur;
+ ptr_end = ptr + size;
+ if (unlikely(ptr_end > s->pool_end)) {
+ return tcg_malloc_internal(&tcg_ctx, size);
+ } else {
+ s->pool_cur = ptr_end;
+ return ptr;
+ }
+}
+
+void tcg_context_init(TCGContext *s);
+void tcg_func_start(TCGContext *s);
+
+int tcg_gen_code(TCGContext *s, uint8_t *gen_code_buf);
+int tcg_gen_code_search_pc(TCGContext *s, uint8_t *gen_code_buf, long offset);
+
+void tcg_set_frame(TCGContext *s, int reg,
+ tcg_target_long start, tcg_target_long size);
+TCGv_i64 tcg_global_reg2_new_hack(TCGType type, int reg1, int reg2,
+ const char *name);
+
+TCGv_i32 tcg_global_reg_new_i32(int reg, const char *name);
+TCGv_i32 tcg_global_mem_new_i32(int reg, tcg_target_long offset,
+ const char *name);
+TCGv_i32 tcg_temp_new_internal_i32(int temp_local);
+static inline TCGv_i32 tcg_temp_new_i32(void)
+{
+ return tcg_temp_new_internal_i32(0);
+}
+static inline TCGv_i32 tcg_temp_local_new_i32(void)
+{
+ return tcg_temp_new_internal_i32(1);
+}
+void tcg_temp_free_i32(TCGv_i32 arg);
+char *tcg_get_arg_str_i32(TCGContext *s, char *buf, int buf_size, TCGv_i32 arg);
+
+TCGv_i64 tcg_global_reg_new_i64(int reg, const char *name);
+TCGv_i64 tcg_global_mem_new_i64(int reg, tcg_target_long offset,
+ const char *name);
+TCGv_i64 tcg_temp_new_internal_i64(int temp_local);
+static inline TCGv_i64 tcg_temp_new_i64(void)
+{
+ return tcg_temp_new_internal_i64(0);
+}
+static inline TCGv_i64 tcg_temp_local_new_i64(void)
+{
+ return tcg_temp_new_internal_i64(1);
+}
+void tcg_temp_free_i64(TCGv_i64 arg);
+char *tcg_get_arg_str_i64(TCGContext *s, char *buf, int buf_size, TCGv_i64 arg);
+
+void tcg_dump_info(FILE *f,
+ int (*cpu_fprintf)(FILE *f, const char *fmt, ...));
+
+#define TCG_CT_ALIAS 0x80
+#define TCG_CT_IALIAS 0x40
+#define TCG_CT_REG 0x01
+#define TCG_CT_CONST 0x02 /* any constant of register size */
+
+typedef struct TCGArgConstraint {
+ uint16_t ct;
+ uint8_t alias_index;
+ union {
+ TCGRegSet regs;
+ } u;
+} TCGArgConstraint;
+
+#define TCG_MAX_OP_ARGS 16
+
+#define TCG_OPF_BB_END 0x01 /* instruction defines the end of a basic
+ block */
+#define TCG_OPF_CALL_CLOBBER 0x02 /* instruction clobbers call registers
+ and potentially update globals. */
+#define TCG_OPF_SIDE_EFFECTS 0x04 /* instruction has side effects : it
+ cannot be removed if its output
+ are not used */
+
+typedef struct TCGOpDef {
+ const char *name;
+ uint8_t nb_oargs, nb_iargs, nb_cargs, nb_args;
+ uint8_t flags;
+ uint16_t copy_size;
+ TCGArgConstraint *args_ct;
+ int *sorted_args;
+} TCGOpDef;
+
+typedef struct TCGTargetOpDef {
+ int op;
+ const char *args_ct_str[TCG_MAX_OP_ARGS];
+} TCGTargetOpDef;
+
+extern TCGOpDef tcg_op_defs[];
+
+void tcg_target_init(TCGContext *s);
+void tcg_target_qemu_prologue(TCGContext *s);
+
+#define tcg_abort() \
+do {\
+ fprintf(stderr, "%s:%d: tcg fatal error\n", __FILE__, __LINE__);\
+ abort();\
+} while (0)
+
+void tcg_add_target_add_op_defs(const TCGTargetOpDef *tdefs);
+
+#if TCG_TARGET_REG_BITS == 32
+#define tcg_const_ptr tcg_const_i32
+#define tcg_add_ptr tcg_add_i32
+#define tcg_sub_ptr tcg_sub_i32
+#define TCGv_ptr TCGv_i32
+#define GET_TCGV_PTR GET_TCGV_I32
+#define tcg_global_reg_new_ptr tcg_global_reg_new_i32
+#define tcg_global_mem_new_ptr tcg_global_mem_new_i32
+#define tcg_temp_new_ptr tcg_temp_new_i32
+#define tcg_temp_free_ptr tcg_temp_free_i32
+#else
+#define tcg_const_ptr tcg_const_i64
+#define tcg_add_ptr tcg_add_i64
+#define tcg_sub_ptr tcg_sub_i64
+#define TCGv_ptr TCGv_i64
+#define GET_TCGV_PTR GET_TCGV_I64
+#define tcg_global_reg_new_ptr tcg_global_reg_new_i64
+#define tcg_global_mem_new_ptr tcg_global_mem_new_i64
+#define tcg_temp_new_ptr tcg_temp_new_i64
+#define tcg_temp_free_ptr tcg_temp_free_i64
+#endif
+
+void tcg_gen_callN(TCGContext *s, TCGv_ptr func, unsigned int flags,
+ int sizemask, TCGArg ret, int nargs, TCGArg *args);
+
+void tcg_gen_shifti_i64(TCGv_i64 ret, TCGv_i64 arg1,
+ int c, int right, int arith);
+
+/* only used for debugging purposes */
+void tcg_register_helper(void *func, const char *name);
+const char *tcg_helper_get_name(TCGContext *s, void *func);
+void tcg_dump_ops(TCGContext *s, FILE *outfile);
+
+void dump_ops(const uint16_t *opc_buf, const TCGArg *opparam_buf);
+TCGv_i32 tcg_const_i32(int32_t val);
+TCGv_i64 tcg_const_i64(int64_t val);
+TCGv_i32 tcg_const_local_i32(int32_t val);
+TCGv_i64 tcg_const_local_i64(int64_t val);
+
+void tcg_out_reloc(TCGContext *s, uint8_t *code_ptr, int type,
+ int label_index, long addend);
+const TCGArg *tcg_gen_code_op(TCGContext *s, int opc, const TCGArg *args1,
+ unsigned int dead_iargs);
+
+/* tcg-runtime.c */
+int64_t tcg_helper_shl_i64(int64_t arg1, int64_t arg2);
+int64_t tcg_helper_shr_i64(int64_t arg1, int64_t arg2);
+int64_t tcg_helper_sar_i64(int64_t arg1, int64_t arg2);
+int64_t tcg_helper_div_i64(int64_t arg1, int64_t arg2);
+int64_t tcg_helper_rem_i64(int64_t arg1, int64_t arg2);
+uint64_t tcg_helper_divu_i64(uint64_t arg1, uint64_t arg2);
+uint64_t tcg_helper_remu_i64(uint64_t arg1, uint64_t arg2);
+
+extern uint8_t code_gen_prologue[];
+#if defined(__powerpc__) && !defined(__powerpc64__)
+#define tcg_qemu_tb_exec(tb_ptr) \
+ ((long REGPARM __attribute__ ((longcall)) (*)(void *))code_gen_prologue)(tb_ptr)
+#else
+#define tcg_qemu_tb_exec(tb_ptr) ((long REGPARM (*)(void *))code_gen_prologue)(tb_ptr)
+#endif