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-rw-r--r--src/arch/sparc/tramp.c1080
1 files changed, 1080 insertions, 0 deletions
diff --git a/src/arch/sparc/tramp.c b/src/arch/sparc/tramp.c
new file mode 100644
index 0000000..19c0a78
--- /dev/null
+++ b/src/arch/sparc/tramp.c
@@ -0,0 +1,1080 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ * Create trampolines to invoke arbitrary functions.
+ *
+ * Copyright (C) Ximian Inc.
+ *
+ * Authors: Paolo Molaro (lupus@ximian.com)
+ * Jeffrey Stedfast <fejj@ximian.com>
+ * Mark Crichton <crichton@gimp.org>
+ *
+ */
+
+#include "config.h"
+#include <stdlib.h>
+#include <string.h>
+#include "sparc-codegen.h"
+#include "mono/metadata/class.h"
+#include "mono/metadata/tabledefs.h"
+#include "mono/interpreter/interp.h"
+#include "mono/metadata/appdomain.h"
+#include "mono/metadata/debug-helpers.h"
+#include "mono/metadata/marshal.h"
+
+
+#define ARG_SIZE sizeof (stackval)
+#define PROLOG_INS 1
+#define CALL_INS 3 /* Max 3. 1 for the jmpl and 1 for the nop and 1 for the possible unimp */
+#define EPILOG_INS 2
+#define FLOAT_REGS 32
+#define OUT_REGS 6
+#define LOCAL_REGS 8
+#define SLOT_SIZE sizeof(gpointer)
+#if SPARCV9
+#define MINIMAL_STACK_SIZE 22
+#define BIAS 2047
+#define FRAME_ALIGN 16
+#else
+#define MINIMAL_STACK_SIZE 23
+#define BIAS 0
+#define FRAME_ALIGN 8
+#endif
+
+#define NOT_IMPL(x) g_error("FIXME: %s", x);
+/*#define DEBUG(a) a*/
+#define DEBUG(a)
+
+/* Some assembly... */
+#ifdef __GNUC__
+#define flushi(addr) __asm__ __volatile__ ("flush %0"::"r"(addr):"memory")
+#else
+static void flushi(void *addr)
+{
+ asm("flush %i0");
+}
+#endif
+
+static char*
+sig_to_name (MonoMethodSignature *sig, const char *prefix)
+{
+ int i;
+ char *result;
+ GString *res = g_string_new ("");
+ char *p;
+
+ if (prefix) {
+ g_string_append (res, prefix);
+ g_string_append_c (res, '_');
+ }
+
+ mono_type_get_desc (res, sig->ret, TRUE);
+
+ for (i = 0; i < sig->param_count; ++i) {
+ g_string_append_c (res, '_');
+ mono_type_get_desc (res, sig->params [i], TRUE);
+ }
+ result = res->str;
+ p = result;
+ /* remove chars Sun's asssembler doesn't like */
+ while (*p != '\0') {
+ if (*p == '.' || *p == '/')
+ *p = '_';
+ else if (*p == '&')
+ *p = '$';
+ else if (*p == '[' || *p == ']')
+ *p = 'X';
+ p++;
+ }
+ g_string_free (res, FALSE);
+ return result;
+}
+
+static void
+sparc_disassemble_code (guint32 *code_buffer, guint32 *p, const char *id)
+{
+ guchar *cp;
+ FILE *ofd;
+
+ if (!(ofd = fopen ("/tmp/test.s", "w")))
+ g_assert_not_reached();
+
+ fprintf (ofd, "%s:\n", id);
+
+ for (cp = (guchar *)code_buffer; cp < (guchar *)p; cp++)
+ fprintf (ofd, ".byte %d\n", *cp);
+
+ fclose (ofd);
+
+#ifdef __GNUC__
+ system ("as /tmp/test.s -o /tmp/test.o;objdump -d /tmp/test.o");
+#else
+ /* this assumes we are using Sun tools as we aren't GCC */
+#if SPARCV9
+ system ("as -xarch=v9 /tmp/test.s -o /tmp/test.o;dis /tmp/test.o");
+#else
+ system ("as /tmp/test.s -o /tmp/test.o;dis /tmp/test.o");
+#endif
+#endif
+}
+
+
+static void
+add_general (guint *gr, guint *stack_size, guint *code_size, gboolean simple)
+{
+ if (simple) {
+ if (*gr >= OUT_REGS) {
+ *stack_size += SLOT_SIZE;
+ *code_size += 12;
+ } else {
+ *code_size += 4;
+ }
+ } else {
+ if (*gr >= OUT_REGS - 1) {
+ *stack_size += 8 + (*stack_size % 8); /* ???64 */
+ *code_size += 16;
+ } else {
+ *code_size += 16;
+ }
+ (*gr)++;
+ }
+ (*gr)++;
+}
+
+static void
+calculate_sizes (MonoMethodSignature *sig, guint *stack_size, guint *code_size,
+ gboolean string_ctor, gboolean *use_memcpy)
+{
+ guint i, fr, gr;
+ guint32 simpletype;
+
+ fr = gr = 0;
+ *stack_size = MINIMAL_STACK_SIZE * SLOT_SIZE;
+ *code_size = (PROLOG_INS + CALL_INS + EPILOG_INS) * 4;
+
+ /* function arguments */
+ if (sig->hasthis)
+ add_general (&gr, stack_size, code_size, TRUE);
+
+ for (i = 0; i < sig->param_count; i++) {
+ if (sig->params[i]->byref) {
+ add_general (&gr, stack_size, code_size, TRUE);
+ continue;
+ }
+ simpletype = sig->params[i]->type;
+ enum_calc_size:
+ switch (simpletype) {
+ case MONO_TYPE_R4:
+#if SPARCV9
+ (*code_size) += 4; /* for the fdtos */
+#else
+ (*code_size) += 12;
+ (*stack_size) += 4;
+#endif
+ case MONO_TYPE_BOOLEAN:
+ case MONO_TYPE_CHAR:
+ case MONO_TYPE_I1:
+ case MONO_TYPE_U1:
+ case MONO_TYPE_I2:
+ case MONO_TYPE_U2:
+ case MONO_TYPE_I4:
+ case MONO_TYPE_U4:
+ case MONO_TYPE_I:
+ case MONO_TYPE_U:
+ case MONO_TYPE_PTR:
+ case MONO_TYPE_CLASS:
+ case MONO_TYPE_OBJECT:
+ case MONO_TYPE_STRING:
+ case MONO_TYPE_SZARRAY:
+ add_general (&gr, stack_size, code_size, TRUE);
+ break;
+ case MONO_TYPE_VALUETYPE: {
+ gint size;
+ guint32 align;
+ if (sig->params[i]->data.klass->enumtype) {
+ simpletype = sig->params[i]->data.klass->enum_basetype->type;
+ goto enum_calc_size;
+ }
+ size = mono_class_native_size (sig->params[i]->data.klass, &align);
+#if SPARCV9
+ if (size != 4) {
+#else
+ if (1) {
+#endif
+ DEBUG(fprintf(stderr, "copy %d byte struct on stack\n", size));
+ *use_memcpy = TRUE;
+ *code_size += 8*4;
+
+ *stack_size = (*stack_size + (align - 1)) & (~(align -1));
+ *stack_size += (size + 3) & (~3);
+ if (gr > OUT_REGS) {
+ *code_size += 4;
+ *stack_size += 4;
+ }
+ } else {
+ add_general (&gr, stack_size, code_size, TRUE);
+#if SPARCV9
+ *code_size += 8;
+#else
+ *code_size += 4;
+#endif
+ }
+ break;
+ }
+ case MONO_TYPE_I8:
+ case MONO_TYPE_R8:
+ add_general (&gr, stack_size, code_size, FALSE);
+ break;
+ default:
+ g_error ("Can't trampoline 0x%x", sig->params[i]->type);
+ }
+ }
+
+ /* function return value */
+ if (sig->ret->byref || string_ctor) {
+ *code_size += 8;
+ } else {
+ simpletype = sig->ret->type;
+ enum_retvalue:
+ switch (simpletype) {
+ case MONO_TYPE_BOOLEAN:
+ case MONO_TYPE_I1:
+ case MONO_TYPE_U1:
+ case MONO_TYPE_I2:
+ case MONO_TYPE_U2:
+ case MONO_TYPE_CHAR:
+ case MONO_TYPE_I4:
+ case MONO_TYPE_U4:
+ case MONO_TYPE_I:
+ case MONO_TYPE_U:
+ case MONO_TYPE_CLASS:
+ case MONO_TYPE_OBJECT:
+ case MONO_TYPE_PTR:
+ case MONO_TYPE_STRING:
+ case MONO_TYPE_R4:
+ case MONO_TYPE_R8:
+ case MONO_TYPE_SZARRAY:
+ case MONO_TYPE_ARRAY:
+ *code_size += 8;
+ break;
+ case MONO_TYPE_I8:
+ *code_size += 12;
+ break;
+ case MONO_TYPE_VALUETYPE: {
+ gint size;
+ if (sig->ret->data.klass->enumtype) {
+ simpletype = sig->ret->data.klass->enum_basetype->type;
+ goto enum_retvalue;
+ }
+ size = mono_class_native_size (sig->ret->data.klass, NULL);
+#if SPARCV9
+ if (size <= 32)
+ *code_size += 8 + (size + 7) / 2;
+ else
+ *code_size += 8;
+#else
+ *code_size += 8;
+#endif
+ break;
+ }
+ case MONO_TYPE_VOID:
+ break;
+ default:
+ g_error ("Can't handle as return value 0x%x", sig->ret->type);
+ }
+ }
+
+ if (*use_memcpy) {
+ *stack_size += 8;
+ *code_size += 24;
+ if (sig->hasthis) {
+ *stack_size += SLOT_SIZE;
+ *code_size += 4;
+ }
+ }
+
+ *stack_size = (*stack_size + (FRAME_ALIGN - 1)) & (~(FRAME_ALIGN -1));
+}
+
+static inline guint32 *
+emit_epilog (guint32 *p, MonoMethodSignature *sig, guint stack_size)
+{
+ int ret_offset = 8;
+
+ /*
+ * Standard epilog.
+ * 8 may be 12 when returning structures (to skip unimp opcode).
+ */
+#if !SPARCV9
+ if (sig != NULL && !sig->ret->byref && sig->ret->type == MONO_TYPE_VALUETYPE && !sig->ret->data.klass->enumtype)
+ ret_offset = 12;
+#endif
+ sparc_jmpl_imm (p, sparc_i7, ret_offset, sparc_zero);
+ sparc_restore (p, sparc_zero, sparc_zero, sparc_zero);
+
+ return p;
+}
+
+static inline guint32 *
+emit_prolog (guint32 *p, MonoMethodSignature *sig, guint stack_size)
+{
+ /* yes kids, it is this simple! */
+ sparc_save_imm (p, sparc_sp, -stack_size, sparc_sp);
+ return p;
+}
+
+#if SPARCV9
+#define sparc_st_ptr(a,b,c,d) sparc_stx(a,b,c,d)
+#define sparc_st_imm_ptr(a,b,c,d) sparc_stx_imm(a,b,c,d)
+#define sparc_ld_ptr(a,b,c,d) sparc_ldx(a,b,c,d)
+#define sparc_ld_imm_ptr(a,b,c,d) sparc_ldx_imm(a,b,c,d)
+#else
+#define sparc_st_ptr(a,b,c,d) sparc_st(a,b,c,d)
+#define sparc_st_imm_ptr(a,b,c,d) sparc_st_imm(a,b,c,d)
+#define sparc_ld_ptr(a,b,c,d) sparc_ld(a,b,c,d)
+#define sparc_ld_imm_ptr(a,b,c,d) sparc_ld_imm(a,b,c,d)
+#endif
+
+/* synonyms for when values are really widened scalar values */
+#define sparc_st_imm_word sparc_st_imm_ptr
+
+#define ARG_BASE sparc_i3 /* pointer to args in i3 */
+#define SAVE_PTR_IN_GENERIC_REGISTER \
+ if (gr < OUT_REGS) { \
+ sparc_ld_imm_ptr (p, ARG_BASE, i*ARG_SIZE, sparc_o0 + gr); \
+ gr++; \
+ } else { \
+ sparc_ld_imm_ptr (p, ARG_BASE, i*ARG_SIZE, sparc_l0); \
+ sparc_st_imm_ptr (p, sparc_l0, sparc_sp, stack_par_pos); \
+ stack_par_pos += SLOT_SIZE; \
+ }
+
+#if SPARCV9
+/* This is a half hearted attempt at coping with structs by value - the
+ actual convention is complicated when floats & doubles are involved as
+ you end up with fields in different registers on/off the stack.
+ It will take more time to get right... */
+static guint32 *
+v9_struct_arg(guint32 *p, int arg_index, MonoClass *klass, int size, guint *p_gr)
+{
+ MonoMarshalType *info = mono_marshal_load_type_info (klass);
+ int off = 0;
+ int index = 0;
+ guint gr = *p_gr;
+ sparc_ld_imm_ptr (p, ARG_BASE, arg_index*ARG_SIZE, sparc_l0);
+ if (size > 8) {
+ if (info->fields [index].field->type->type == MONO_TYPE_R8) {
+ sparc_lddf_imm (p, sparc_l0, 0, sparc_f0 + 2 * gr);
+ index++;
+ }
+ else {
+ sparc_ldx_imm (p, sparc_l0, 0, sparc_o0 + gr);
+ index++; /* FIXME could be multiple fields in one register */
+ }
+ gr++;
+ size -= 8;
+ off = 8;
+ }
+ if (size > 0) {
+ if (info->fields [index].field->type->type == MONO_TYPE_R8) {
+ sparc_lddf_imm (p, sparc_l0, off, sparc_f0 + 2 * gr);
+ index++;
+ }
+ else {
+ /* will load extra garbage off end of short structs ... */
+ sparc_ldx_imm (p, sparc_l0, off, sparc_o0 + gr);
+ }
+ gr++;
+ }
+ *p_gr = gr;
+ return p;
+}
+#endif
+
+static inline guint32*
+emit_save_parameters (guint32 *p, MonoMethodSignature *sig, guint stack_size,
+ gboolean use_memcpy)
+{
+ guint i, fr, gr, stack_par_pos, struct_pos, cur_struct_pos;
+ guint32 simpletype;
+
+ fr = gr = 0;
+ stack_par_pos = MINIMAL_STACK_SIZE * SLOT_SIZE + BIAS;
+
+ if (sig->hasthis) {
+ if (use_memcpy) {
+ /* we don't need to save a thing. */
+ } else
+ sparc_mov_reg_reg (p, sparc_i2, sparc_o0);
+ gr ++;
+ }
+
+ if (use_memcpy) {
+ cur_struct_pos = struct_pos = stack_par_pos;
+ for (i = 0; i < sig->param_count; i++) {
+ if (sig->params[i]->byref)
+ continue;
+ if (sig->params[i]->type == MONO_TYPE_VALUETYPE &&
+ !sig->params[i]->data.klass->enumtype) {
+ gint size;
+ guint32 align;
+
+ size = mono_class_native_size (sig->params[i]->data.klass, &align);
+#if SPARCV9
+ if (size != 4) {
+#else
+ if (1) {
+#endif
+ /* Add alignment */
+ stack_par_pos = (stack_par_pos + (align - 1)) & (~(align - 1));
+ /* need to call memcpy here */
+ sparc_add_imm (p, 0, sparc_sp, stack_par_pos, sparc_o0);
+ sparc_ld_imm_ptr (p, sparc_i3, i*16, sparc_o1);
+ sparc_set (p, (guint32)size, sparc_o2);
+ sparc_set_ptr (p, (void *)memmove, sparc_l0);
+ sparc_jmpl_imm (p, sparc_l0, 0, sparc_callsite);
+ sparc_nop (p);
+ stack_par_pos += (size + (SLOT_SIZE - 1)) & (~(SLOT_SIZE - 1));
+ }
+ }
+ }
+ }
+
+ if (sig->ret->type == MONO_TYPE_VALUETYPE && !sig->ret->byref) {
+ MonoClass *klass = sig->ret->data.klass;
+ if (!klass->enumtype) {
+ gint size = mono_class_native_size (klass, NULL);
+
+ DEBUG(fprintf(stderr, "retval value type size: %d\n", size));
+#if SPARCV9
+ if (size > 32) {
+#else
+ {
+#endif
+ /* pass on buffer in interp.c to called function */
+ sparc_ld_imm_ptr (p, sparc_i1, 0, sparc_l0);
+ sparc_st_imm_ptr (p, sparc_l0, sparc_sp, 64);
+ }
+ }
+ }
+
+ DEBUG(fprintf(stderr, "%s\n", sig_to_name(sig, FALSE)));
+
+ for (i = 0; i < sig->param_count; i++) {
+ if (sig->params[i]->byref) {
+ SAVE_PTR_IN_GENERIC_REGISTER;
+ continue;
+ }
+ simpletype = sig->params[i]->type;
+ enum_calc_size:
+ switch (simpletype) {
+ case MONO_TYPE_BOOLEAN:
+ case MONO_TYPE_I1:
+ case MONO_TYPE_U1:
+ case MONO_TYPE_I2:
+ case MONO_TYPE_U2:
+ case MONO_TYPE_CHAR:
+ case MONO_TYPE_I4:
+ case MONO_TYPE_U4:
+ if (gr < OUT_REGS) {
+ sparc_ld_imm (p, ARG_BASE, i*ARG_SIZE, sparc_o0 + gr);
+ gr++;
+ } else {
+ sparc_ld_imm (p, ARG_BASE, i*ARG_SIZE, sparc_l0);
+ sparc_st_imm_word (p, sparc_l0, sparc_sp, stack_par_pos);
+ stack_par_pos += SLOT_SIZE;
+ }
+ break;
+
+ case MONO_TYPE_R4:
+#if SPARCV9
+ sparc_lddf_imm (p, ARG_BASE, i*ARG_SIZE, sparc_f30); /* fix using this fixed reg */
+ sparc_fdtos(p, sparc_f30, sparc_f0 + 2 * gr + 1);
+ gr++;
+ break;
+#else
+ /* Convert from double to single */
+ sparc_lddf_imm (p, ARG_BASE, i*ARG_SIZE, sparc_f0);
+ sparc_fdtos (p, sparc_f0, sparc_f0);
+
+ /*
+ * FIXME: Is there an easier way to do an
+ * freg->ireg move ?
+ */
+ sparc_stf_imm (p, sparc_f0, sparc_sp, stack_par_pos);
+
+ if (gr < OUT_REGS) {
+ sparc_ld_imm (p, sparc_sp, stack_par_pos, sparc_o0 + gr);
+ gr++;
+ } else {
+ sparc_ldf_imm (p, sparc_sp, stack_par_pos, sparc_f0);
+ sparc_stf_imm (p, sparc_f0, sparc_sp, stack_par_pos);
+ stack_par_pos += SLOT_SIZE;
+ }
+ break;
+#endif
+
+ case MONO_TYPE_I:
+ case MONO_TYPE_U:
+ case MONO_TYPE_PTR:
+ case MONO_TYPE_CLASS:
+ case MONO_TYPE_OBJECT:
+ case MONO_TYPE_STRING:
+ case MONO_TYPE_SZARRAY:
+ SAVE_PTR_IN_GENERIC_REGISTER;
+ break;
+ case MONO_TYPE_VALUETYPE: {
+ gint size;
+ guint32 align;
+ MonoClass *klass = sig->params[i]->data.klass;
+ if (klass->enumtype) {
+ simpletype = klass->enum_basetype->type;
+ goto enum_calc_size;
+ }
+ size = mono_class_native_size (klass, &align);
+#if SPARCV9
+ if (size <= 16) {
+ if (gr < OUT_REGS) {
+ p = v9_struct_arg(p, i, klass, size, &gr);
+ } else {
+ sparc_ld_imm_ptr (p, ARG_BASE, i*ARG_SIZE, sparc_l0);
+ sparc_ld_imm (p, sparc_l0, 0, sparc_l0);
+ sparc_st_imm_word (p, sparc_l0, sparc_sp, stack_par_pos);
+ stack_par_pos += SLOT_SIZE;
+ }
+ break;
+ }
+#else
+ /*
+ * FIXME: The 32bit ABI docs do not mention that small
+ * structures are passed in registers.
+ */
+
+ /*
+ if (size == 4) {
+ if (gr < OUT_REGS) {
+ sparc_ld_imm_ptr (p, ARG_BASE, i*ARG_SIZE, sparc_l0);
+ sparc_ld_imm (p, sparc_l0, 0, sparc_o0 + gr);
+ gr++;
+ } else {
+ sparc_ld_imm_ptr (p, ARG_BASE, i*ARG_SIZE, sparc_l0);
+ sparc_ld_imm (p, sparc_l0, 0, sparc_l0);
+ sparc_st_imm_word (p, sparc_l0, sparc_sp, stack_par_pos);
+ stack_par_pos += SLOT_SIZE;
+ }
+ break;
+ }
+ */
+#endif
+
+ cur_struct_pos = (cur_struct_pos + (align - 1)) & (~(align - 1));
+ if (gr < OUT_REGS) {
+ sparc_add_imm (p, 0, sparc_sp,
+ cur_struct_pos, sparc_o0 + gr);
+ gr ++;
+ } else {
+ sparc_ld_imm_ptr (p, sparc_sp,
+ cur_struct_pos,
+ sparc_l1);
+ sparc_st_imm_ptr (p, sparc_l1,
+ sparc_sp,
+ stack_par_pos);
+ }
+ cur_struct_pos += (size + (SLOT_SIZE - 1)) & (~(SLOT_SIZE - 1));
+ break;
+ }
+
+#if SPARCV9
+ case MONO_TYPE_I8:
+ if (gr < OUT_REGS) {
+ sparc_ldx_imm (p, ARG_BASE, i*ARG_SIZE, sparc_o0 + gr);
+ gr++;
+ } else {
+ sparc_ldx_imm (p, ARG_BASE, i*ARG_SIZE, sparc_l0);
+ sparc_stx_imm (p, sparc_l0, sparc_sp, stack_par_pos);
+ stack_par_pos += SLOT_SIZE;
+ }
+ break;
+ case MONO_TYPE_R8:
+ sparc_lddf_imm (p, ARG_BASE, i*ARG_SIZE, sparc_f0 + 2 * i);
+ break;
+#else
+ case MONO_TYPE_I8:
+ case MONO_TYPE_R8:
+ if (gr < (OUT_REGS - 1)) {
+ sparc_ld_imm (p, ARG_BASE, i*ARG_SIZE, sparc_o0 + gr);
+ gr ++;
+
+ sparc_ld_imm (p, ARG_BASE,
+ (i*ARG_SIZE) + 4,
+ sparc_o0 + gr);
+ gr ++;
+ } else if (gr == (OUT_REGS - 1)) {
+ /* Split register/stack */
+ sparc_ld_imm (p, ARG_BASE, i*ARG_SIZE, sparc_o0 + gr);
+ gr ++;
+
+ sparc_ld_imm (p, ARG_BASE, (i*ARG_SIZE) + 4, sparc_l0);
+ sparc_st_imm (p, sparc_l0, sparc_sp, stack_par_pos);
+ stack_par_pos += SLOT_SIZE;
+ } else {
+ sparc_ld_imm (p, ARG_BASE, i*ARG_SIZE, sparc_l0);
+ sparc_st_imm (p, sparc_l0, sparc_sp, stack_par_pos);
+ stack_par_pos += SLOT_SIZE;
+
+ sparc_ld_imm (p, ARG_BASE, (i*ARG_SIZE) + 4, sparc_l0);
+ sparc_st_imm (p, sparc_l0, sparc_sp, stack_par_pos);
+ stack_par_pos += SLOT_SIZE;
+ }
+ break;
+#endif
+ default:
+ g_error ("Can't trampoline 0x%x", sig->params[i]->type);
+ }
+ }
+
+ g_assert ((stack_par_pos - BIAS) <= stack_size);
+
+ return p;
+}
+
+static inline guint32 *
+alloc_code_memory (guint code_size)
+{
+ guint32 *p;
+
+ p = g_malloc(code_size);
+
+ return p;
+}
+
+static inline guint32 *
+emit_call_and_store_retval (guint32 *p, MonoMethodSignature *sig,
+ guint stack_size, gboolean string_ctor)
+{
+ guint32 simpletype;
+
+ /* call "callme" */
+ sparc_jmpl_imm (p, sparc_i0, 0, sparc_callsite);
+ sparc_nop (p);
+#if !SPARCV9
+ if (sig->ret->type == MONO_TYPE_VALUETYPE && !sig->ret->data.klass->enumtype) {
+ int size = mono_class_native_size (sig->ret->data.klass, NULL);
+ sparc_unimp (p, size & 4095);
+ }
+#endif
+
+ /* get return value */
+ if (sig->ret->byref || string_ctor) {
+ sparc_st_ptr (p, sparc_o0, sparc_i1, 0);
+ } else {
+ simpletype = sig->ret->type;
+ enum_retval:
+ switch (simpletype) {
+ case MONO_TYPE_BOOLEAN:
+ case MONO_TYPE_I1:
+ case MONO_TYPE_U1:
+ sparc_stb (p, sparc_o0, sparc_i1, 0);
+ break;
+ case MONO_TYPE_CHAR:
+ case MONO_TYPE_I2:
+ case MONO_TYPE_U2:
+ sparc_sth (p, sparc_o0, sparc_i1, 0);
+ break;
+ case MONO_TYPE_I4:
+ case MONO_TYPE_U4:
+ sparc_st (p, sparc_o0, sparc_i1, 0);
+ break;
+ case MONO_TYPE_I:
+ case MONO_TYPE_U:
+ case MONO_TYPE_CLASS:
+ case MONO_TYPE_OBJECT:
+ case MONO_TYPE_SZARRAY:
+ case MONO_TYPE_ARRAY:
+ case MONO_TYPE_STRING:
+ case MONO_TYPE_PTR:
+ sparc_st_ptr (p, sparc_o0, sparc_i1, 0);
+ break;
+ case MONO_TYPE_R4:
+ sparc_stf (p, sparc_f0, sparc_i1, 0);
+ break;
+ case MONO_TYPE_R8:
+ sparc_stdf (p, sparc_f0, sparc_i1, 0);
+ break;
+ case MONO_TYPE_I8:
+#if SPARCV9
+ sparc_stx (p, sparc_o0, sparc_i1, 0);
+#else
+ sparc_std (p, sparc_o0, sparc_i1, 0);
+#endif
+ break;
+ case MONO_TYPE_VALUETYPE: {
+ gint size;
+ if (sig->ret->data.klass->enumtype) {
+ simpletype = sig->ret->data.klass->enum_basetype->type;
+ goto enum_retval;
+ }
+#if SPARCV9
+ size = mono_class_native_size (sig->ret->data.klass, NULL);
+ if (size <= 32) {
+ int n_regs = size / 8;
+ int j;
+ sparc_ldx_imm (p, sparc_i1, 0, sparc_i1);
+ /* wrong if there are floating values in the struct... */
+ for (j = 0; j < n_regs; j++) {
+ sparc_stx_imm (p, sparc_o0 + j, sparc_i1, j * 8);
+ }
+ size -= n_regs * 8;
+ if (size > 0) {
+ int last_reg = sparc_o0 + n_regs;
+ /* get value right aligned in register */
+ sparc_srlx_imm(p, last_reg, 64 - 8 * size, last_reg);
+ if ((size & 1) != 0) {
+ sparc_stb_imm (p, last_reg, sparc_i1, n_regs * 8 + size - 1);
+ size--;
+ if (size > 0)
+ sparc_srlx_imm(p, last_reg, 8, last_reg);
+ }
+ if ((size & 2) != 0) {
+ sparc_sth_imm (p, last_reg, sparc_i1, n_regs * 8 + size - 2);
+ size -= 2;
+ if (size > 0)
+ sparc_srlx_imm(p, last_reg, 16, last_reg);
+ }
+ if ((size & 4) != 0)
+ sparc_st_imm (p, last_reg, sparc_i1, n_regs * 8);
+ }
+ }
+#endif
+ }
+ case MONO_TYPE_VOID:
+ break;
+ default:
+ g_error ("Can't handle as return value 0x%x", sig->ret->type);
+ }
+ }
+ return p;
+}
+
+MonoPIFunc
+mono_arch_create_trampoline (MonoMethodSignature *sig, gboolean string_ctor)
+{
+ guint32 *p, *code_buffer;
+ guint stack_size, code_size, i;
+ gboolean use_memcpy = FALSE;
+ static GHashTable *cache = NULL;
+ MonoPIFunc res;
+
+ if (!cache)
+ cache = g_hash_table_new ((GHashFunc)mono_signature_hash,
+ (GCompareFunc)mono_metadata_signature_equal);
+
+ if ((res = (MonoPIFunc)g_hash_table_lookup(cache, sig)))
+ return res;
+
+ calculate_sizes (sig, &stack_size, &code_size,
+ string_ctor, &use_memcpy);
+
+ p = code_buffer = alloc_code_memory (code_size);
+ p = emit_prolog (p, sig, stack_size);
+ p = emit_save_parameters (p, sig, stack_size, use_memcpy);
+ p = emit_call_and_store_retval (p, sig, stack_size, string_ctor);
+ /* we don't return structs here so pass in NULL as signature */
+ p = emit_epilog (p, NULL, stack_size);
+
+ g_assert(p <= code_buffer + (code_size / 4));
+
+ DEBUG(sparc_disassemble_code (code_buffer, p, sig_to_name(sig, NULL)));
+
+ /* So here's the deal...
+ * UltraSPARC will flush a whole cache line at a time
+ * BUT, older SPARCs won't.
+ * So, be compatable and flush dwords at a time...
+ */
+
+ for (i = 0; i < ((p - code_buffer)/2); i++)
+ flushi((code_buffer + (i*8)));
+
+ g_hash_table_insert(cache, sig, code_buffer);
+
+ return (MonoPIFunc)code_buffer;
+}
+
+#define MINV_POS (MINIMAL_STACK_SIZE * SLOT_SIZE + BIAS)
+
+void *
+mono_arch_create_method_pointer (MonoMethod *method)
+{
+ MonoMethodSignature *sig;
+ MonoJitInfo *ji;
+ guint stack_size, code_size, stackval_arg_pos, local_pos;
+ guint i, local_start, reg_param = 0, stack_param, cpos, vt_cur;
+ guint32 align = 0;
+ guint32 *p, *code_buffer;
+ gint *vtbuf;
+ gint32 simpletype;
+
+ code_size = 1024; /* these should be calculated... */
+ stack_size = 1024;
+ stack_param = 0;
+
+ sig = method->signature;
+
+ p = code_buffer = g_malloc (code_size);
+
+ DEBUG(fprintf(stderr, "Delegate [start emiting] %s\n", method->name));
+ DEBUG(fprintf(stderr, "%s\n", sig_to_name(sig, FALSE)));
+
+ p = emit_prolog (p, sig, stack_size);
+
+ /* fill MonoInvocation */
+ sparc_st_imm_ptr (p, sparc_g0, sparc_sp,
+ (MINV_POS + G_STRUCT_OFFSET (MonoInvocation, ex)));
+ sparc_st_imm_ptr (p, sparc_g0, sparc_sp,
+ (MINV_POS + G_STRUCT_OFFSET (MonoInvocation, ex_handler)));
+ sparc_st_imm_ptr (p, sparc_g0, sparc_sp,
+ (MINV_POS + G_STRUCT_OFFSET (MonoInvocation, parent)));
+
+ sparc_set_ptr (p, (void *)method, sparc_l0);
+ sparc_st_imm_ptr (p, sparc_l0, sparc_sp,
+ (MINV_POS + G_STRUCT_OFFSET (MonoInvocation, method)));
+
+ stackval_arg_pos = MINV_POS + sizeof (MonoInvocation);
+ local_start = local_pos = stackval_arg_pos + (sig->param_count + 1) * sizeof (stackval);
+
+ if (sig->hasthis) {
+ sparc_st_imm_ptr (p, sparc_i0, sparc_sp,
+ (MINV_POS + G_STRUCT_OFFSET (MonoInvocation, obj)));
+ reg_param = 1;
+ }
+
+ if (sig->param_count) {
+ gint save_count = MIN (OUT_REGS, sig->param_count + sig->hasthis);
+ for (i = reg_param; i < save_count; i++) {
+ sparc_st_imm_ptr (p, sparc_i0 + i, sparc_sp, local_pos);
+ local_pos += SLOT_SIZE;
+ }
+ }
+
+ /* prepare space for valuetypes */
+ vt_cur = local_pos;
+ vtbuf = alloca (sizeof(int)*sig->param_count);
+ cpos = 0;
+ for (i = 0; i < sig->param_count; i++) {
+ MonoType *type = sig->params [i];
+ vtbuf [i] = -1;
+ if (!sig->params[i]->byref && type->type == MONO_TYPE_VALUETYPE) {
+ MonoClass *klass = type->data.klass;
+ gint size;
+
+ if (klass->enumtype)
+ continue;
+ size = mono_class_native_size (klass, &align);
+ cpos += align - 1;
+ cpos &= ~(align - 1);
+ vtbuf [i] = cpos;
+ cpos += size;
+ }
+ }
+ cpos += SLOT_SIZE - 1;
+ cpos &= ~(SLOT_SIZE - 1);
+
+ local_pos += cpos;
+
+ /* set MonoInvocation::stack_args */
+ sparc_add_imm (p, 0, sparc_sp, stackval_arg_pos, sparc_l0);
+ sparc_st_imm_ptr (p, sparc_l0, sparc_sp,
+ (MINV_POS + G_STRUCT_OFFSET (MonoInvocation, stack_args)));
+
+ /* add stackval arguments */
+ for (i=0; i < sig->param_count; i++) {
+ int stack_offset;
+ int type;
+ if (reg_param < OUT_REGS) {
+ stack_offset = local_start + i * SLOT_SIZE;
+ reg_param++;
+ } else {
+ stack_offset = stack_size + 8 + stack_param;
+ stack_param++;
+ }
+
+ if (!sig->params[i]->byref) {
+ type = sig->params[i]->type;
+ enum_arg:
+ switch (type) {
+ case MONO_TYPE_I8:
+ case MONO_TYPE_U8:
+ case MONO_TYPE_I:
+ case MONO_TYPE_U:
+ case MONO_TYPE_STRING:
+ case MONO_TYPE_OBJECT:
+ case MONO_TYPE_CLASS:
+ case MONO_TYPE_SZARRAY:
+ case MONO_TYPE_PTR:
+ case MONO_TYPE_R8:
+ break;
+ case MONO_TYPE_I4:
+ case MONO_TYPE_U4:
+ stack_offset += SLOT_SIZE - 4;
+ break;
+ case MONO_TYPE_CHAR:
+ case MONO_TYPE_I2:
+ case MONO_TYPE_U2:
+ stack_offset += SLOT_SIZE - 2;
+ break;
+ case MONO_TYPE_I1:
+ case MONO_TYPE_U1:
+ case MONO_TYPE_BOOLEAN:
+ stack_offset += SLOT_SIZE - 1;
+ break;
+ case MONO_TYPE_VALUETYPE:
+ if (sig->params[i]->data.klass->enumtype) {
+ type = sig->params[i]->data.klass->enum_basetype->type;
+ goto enum_arg;
+ }
+ g_assert(vtbuf[i] >= 0);
+ break;
+ default:
+ g_error ("can not cope with delegate arg type %d", type);
+ }
+ }
+
+ sparc_add_imm (p, 0, sparc_sp, stack_offset, sparc_o2);
+
+ if (vtbuf[i] >= 0) {
+ sparc_add_imm (p, 0, sparc_sp, vt_cur, sparc_o1);
+ sparc_st_imm_ptr (p, sparc_o1, sparc_sp, stackval_arg_pos);
+ sparc_add_imm (p, 0, sparc_sp, stackval_arg_pos,
+ sparc_o1);
+ sparc_ld_imm_ptr (p, sparc_o2, 0, sparc_o2);
+ vt_cur += vtbuf[i];
+ } else {
+ sparc_add_imm (p, 0, sparc_sp, stackval_arg_pos,
+ sparc_o1);
+ }
+
+ sparc_set_ptr (p, (void *)sig->params[i], sparc_o0);
+ sparc_set (p, (guint32)sig->pinvoke, sparc_o3);
+
+ /* YOU make the CALL! */
+ sparc_set_ptr (p, (void *)stackval_from_data, sparc_l0);
+ sparc_jmpl_imm (p, sparc_l0, 0, sparc_callsite);
+ sparc_nop (p);
+ stackval_arg_pos += sizeof(stackval);
+ }
+
+ /* return value storage */
+ /* Align to dword */
+ stackval_arg_pos = (stackval_arg_pos + (8 - 1)) & (~(8 -1));
+ if (sig->param_count) {
+ sparc_add_imm (p, 0, sparc_sp, stackval_arg_pos, sparc_l0);
+ }
+ if (!sig->ret->byref && sig->ret->type == MONO_TYPE_VALUETYPE && !sig->ret->data.klass->enumtype) {
+#if !SPARCV9
+ /* pass on callers buffer */
+ sparc_ld_imm_ptr (p, sparc_fp, 64, sparc_l1);
+ sparc_st_imm_ptr (p, sparc_l1, sparc_l0, 0);
+#else
+ sparc_add_imm (p, 0, sparc_l0, sizeof(stackval), sparc_l1);
+ sparc_st_imm_ptr (p, sparc_l1, sparc_l0, 0);
+#endif
+ }
+
+ sparc_st_imm_ptr (p, sparc_l0, sparc_sp,
+ (MINV_POS + G_STRUCT_OFFSET (MonoInvocation, retval)));
+
+ /* call ves_exec_method */
+ sparc_add_imm (p, 0, sparc_sp, MINV_POS, sparc_o0);
+ sparc_set_ptr (p, (void *)ves_exec_method, sparc_l0);
+ sparc_jmpl_imm (p, sparc_l0, 0, sparc_callsite);
+ sparc_nop (p);
+
+ /* move retval from stackval to proper place (r3/r4/...) */
+ if (sig->ret->byref) {
+ sparc_ld_imm_ptr (p, sparc_sp, stackval_arg_pos, sparc_i0 );
+ } else {
+ enum_retvalue:
+ switch (sig->ret->type) {
+ case MONO_TYPE_VOID:
+ break;
+ case MONO_TYPE_BOOLEAN:
+ case MONO_TYPE_I1:
+ case MONO_TYPE_U1:
+ case MONO_TYPE_I2:
+ case MONO_TYPE_U2:
+ case MONO_TYPE_I4:
+ case MONO_TYPE_U4:
+ sparc_ld_imm (p, sparc_sp, stackval_arg_pos, sparc_i0);
+ break;
+ case MONO_TYPE_I:
+ case MONO_TYPE_U:
+ case MONO_TYPE_OBJECT:
+ case MONO_TYPE_STRING:
+ case MONO_TYPE_CLASS:
+ sparc_ld_imm_ptr (p, sparc_sp, stackval_arg_pos, sparc_i0);
+ break;
+ case MONO_TYPE_I8:
+ case MONO_TYPE_U8:
+#if SPARCV9
+ sparc_ldx_imm (p, sparc_sp, stackval_arg_pos, sparc_i0);
+#else
+ sparc_ld_imm (p, sparc_sp, stackval_arg_pos, sparc_i0);
+ sparc_ld_imm (p, sparc_sp, stackval_arg_pos + 4, sparc_i1);
+#endif
+ break;
+ case MONO_TYPE_R4:
+ sparc_lddf_imm (p, sparc_sp, stackval_arg_pos, sparc_f0);
+ sparc_fdtos(p, sparc_f0, sparc_f0);
+ break;
+ case MONO_TYPE_R8:
+ sparc_lddf_imm (p, sparc_sp, stackval_arg_pos, sparc_f0);
+ break;
+ case MONO_TYPE_VALUETYPE: {
+ gint size;
+ gint reg = sparc_i0;
+ if (sig->ret->data.klass->enumtype) {
+ simpletype = sig->ret->data.klass->enum_basetype->type;
+ goto enum_retvalue;
+ }
+#if SPARCV9
+ size = mono_class_native_size (sig->ret->data.klass, NULL);
+ sparc_ldx_imm (p, sparc_sp, stackval_arg_pos, sparc_l0);
+ if (size <= 16) {
+ gint off = 0;
+ if (size >= 8) {
+ sparc_ldx_imm (p, sparc_l0, 0, reg);
+ size -= 8;
+ off += 8;
+ reg++;
+ }
+ if (size > 0)
+ sparc_ldx_imm (p, sparc_l0, off, reg);
+ } else
+ NOT_IMPL("value type as ret val from delegate");
+#endif
+ break;
+ }
+ default:
+ g_error ("Type 0x%x not handled yet in thunk creation",
+ sig->ret->type);
+ break;
+ }
+ }
+
+ p = emit_epilog (p, sig, stack_size);
+
+ for (i = 0; i < ((p - code_buffer)/2); i++)
+ flushi((code_buffer + (i*8)));
+
+ ji = g_new0 (MonoJitInfo, 1);
+ ji->method = method;
+ ji->code_size = p - code_buffer;
+ ji->code_start = code_buffer;
+
+ mono_jit_info_table_add (mono_get_root_domain (), ji);
+
+ DEBUG(sparc_disassemble_code (code_buffer, p, method->name));
+
+ DEBUG(fprintf(stderr, "Delegate [end emiting] %s\n", method->name));
+
+ return ji->code_start;
+}
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