/**
* mono_arch_get_throw_exception_by_name:
*
* Returns a function pointer which can be used to raise
* corlib exceptions. The returned function has the following
* signature: void (*func) (char *exc_name, gpointer ip);
*/
gpointer
mono_arch_get_throw_exception_by_name (void)
{
static guint32 *start;
static int inited = 0;
guint32 *code;
int reg;
if (inited)
return start;
inited = 1;
code = start = mono_global_codeman_reserve (64 * sizeof (guint32));
#ifdef SPARCV9
reg = sparc_g4;
#else
reg = sparc_g1;
#endif
sparc_save_imm (code, sparc_sp, -160, sparc_sp);
sparc_mov_reg_reg (code, sparc_i0, sparc_o2);
sparc_set (code, mono_defaults.corlib, sparc_o0);
sparc_set (code, "System", sparc_o1);
sparc_set (code, mono_exception_from_name, sparc_o7);
sparc_jmpl (code, sparc_o7, sparc_g0, sparc_callsite);
sparc_nop (code);
/* Return to the caller, so exception handling does not see this frame */
sparc_restore (code, sparc_o0, sparc_g0, sparc_o0);
/* Put original return address into %o7 */
sparc_mov_reg_reg (code, sparc_o1, sparc_o7);
sparc_set (code, mono_arch_get_throw_exception (), reg);
/* Use a jmp instead of a call so o7 is preserved */
sparc_jmpl_imm (code, reg, 0, sparc_g0);
sparc_nop (code);
g_assert ((code - start) < 32);
mono_arch_flush_icache ((guint8*)start, (guint8*)code - (guint8*)start);
return start;
}
/**
* mono_arch_get_throw_corlib_exception:
*
* Returns a function pointer which can be used to raise
* corlib exceptions. The returned function has the following
* signature: void (*func) (guint32 ex_token, guint32 offset);
* Here, offset is the offset which needs to be substracted from the caller IP
* to get the IP of the throw. Passing the offset has the advantage that it
* needs no relocations in the caller.
*/
gpointer
mono_arch_get_throw_corlib_exception (MonoTrampInfo **info, gboolean aot)
{
static guint32 *start;
static int inited = 0;
guint32 *code;
int reg;
g_assert (!aot);
if (info)
*info = NULL;
if (inited)
return start;
inited = 1;
code = start = mono_global_codeman_reserve (64 * sizeof (guint32));
#ifdef SPARCV9
reg = sparc_g4;
#else
reg = sparc_g1;
#endif
sparc_mov_reg_reg (code, sparc_o7, sparc_o2);
sparc_save_imm (code, sparc_sp, -160, sparc_sp);
sparc_set (code, MONO_TOKEN_TYPE_DEF, sparc_o7);
sparc_add (code, FALSE, sparc_i0, sparc_o7, sparc_o1);
sparc_set (code, mono_defaults.exception_class->image, sparc_o0);
sparc_set (code, mono_exception_from_token, sparc_o7);
sparc_jmpl (code, sparc_o7, sparc_g0, sparc_callsite);
sparc_nop (code);
/* Return to the caller, so exception handling does not see this frame */
sparc_restore (code, sparc_o0, sparc_g0, sparc_o0);
/* Compute throw ip */
sparc_sll_imm (code, sparc_o1, 2, sparc_o1);
sparc_sub (code, 0, sparc_o2, sparc_o1, sparc_o7);
sparc_set (code, mono_arch_get_throw_exception (NULL, FALSE), reg);
/* Use a jmp instead of a call so o7 is preserved */
sparc_jmpl_imm (code, reg, 0, sparc_g0);
sparc_nop (code);
g_assert ((code - start) < 32);
mono_arch_flush_icache ((guint8*)start, (guint8*)code - (guint8*)start);
return start;
}
static gpointer
get_throw_exception (gboolean rethrow)
{
guint32 *start, *code;
code = start = mono_global_codeman_reserve (16 * sizeof (guint32));
sparc_save_imm (code, sparc_sp, -512, sparc_sp);
sparc_flushw (code);
sparc_mov_reg_reg (code, sparc_i0, sparc_o0);
sparc_mov_reg_reg (code, sparc_fp, sparc_o1);
sparc_mov_reg_reg (code, sparc_i7, sparc_o2);
sparc_set (code, rethrow, sparc_o3);
sparc_set (code, throw_exception, sparc_o7);
sparc_jmpl (code, sparc_o7, sparc_g0, sparc_callsite);
sparc_nop (code);
g_assert ((code - start) <= 16);
mono_arch_flush_icache ((guint8*)start, (guint8*)code - (guint8*)start);
return start;
}
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;
}
/*
* mono_arch_get_call_filter:
*
* Returns a pointer to a method which calls an exception filter. We
* also use this function to call finally handlers (we pass NULL as
* @exc object in this case).
*
* call_filter (MonoContext *ctx, gpointer ip)
*/
gpointer
mono_arch_get_call_filter (MonoTrampInfo **info, gboolean aot)
{
static guint32 *start;
static int inited = 0;
guint32 *code;
int i;
g_assert (!aot);
if (info)
*info = NULL;
if (inited)
return start;
code = start = mono_global_codeman_reserve (64 * sizeof (guint32));
/*
* There are two frames here:
* - the first frame is used by call_filter
* - the second frame is used to run the filter code
*/
/* Create first frame */
sparc_save_imm (code, sparc_sp, -256, sparc_sp);
sparc_mov_reg_reg (code, sparc_i1, sparc_o0);
sparc_ldi_imm (code, sparc_i0, G_STRUCT_OFFSET (MonoContext, sp), sparc_o1);
/* Create second frame */
sparc_save_imm (code, sparc_sp, -256, sparc_sp);
sparc_mov_reg_reg (code, sparc_i0, sparc_o0);
sparc_mov_reg_reg (code, sparc_i1, sparc_o1);
/*
* We need to change %fp to point to the stack frame of the method
* containing the filter. But changing %fp also changes the %sp of
* the parent frame (the first frame), so if the OS saves the first frame,
* it saves it to the stack frame of the method, which is not good.
* So flush all register windows to memory before changing %fp.
*/
sparc_flushw (code);
sparc_mov_reg_reg (code, sparc_fp, sparc_o7);
/*
* Modify the second frame so it is identical to the one used in the
* method containing the filter.
*/
for (i = 0; i < 16; ++i)
sparc_ldi_imm (code, sparc_o1, MONO_SPARC_STACK_BIAS + i * sizeof (gpointer), sparc_l0 + i);
/* Save %fp to a location reserved in mono_arch_allocate_vars */
sparc_sti_imm (code, sparc_o7, sparc_fp, MONO_SPARC_STACK_BIAS - sizeof (gpointer));
/* Call the filter code, after this returns, %o0 will hold the result */
sparc_call_imm (code, sparc_o0, 0);
sparc_nop (code);
/* Restore original %fp */
sparc_ldi_imm (code, sparc_fp, MONO_SPARC_STACK_BIAS - sizeof (gpointer), sparc_fp);
sparc_mov_reg_reg (code, sparc_o0, sparc_i0);
/* Return to first frame */
sparc_restore (code, sparc_g0, sparc_g0, sparc_g0);
/* FIXME: Save locals to the stack */
/* Return to caller */
sparc_ret (code);
/* Return result in delay slot */
sparc_restore (code, sparc_o0, sparc_g0, sparc_o0);
g_assert ((code - start) < 64);
mono_arch_flush_icache ((guint8*)start, (guint8*)code - (guint8*)start);
inited = 1;
return start;
}
guchar*
mono_arch_create_generic_trampoline (MonoTrampolineType tramp_type, MonoTrampInfo **info, gboolean aot)
{
guint8 *buf, *code, *tramp_addr;
guint32 lmf_offset, regs_offset, method_reg, i;
gboolean has_caller;
g_assert (!aot);
*info = NULL;
if (tramp_type == MONO_TRAMPOLINE_JUMP)
has_caller = FALSE;
else
has_caller = TRUE;
code = buf = mono_global_codeman_reserve (1024);
sparc_save_imm (code, sparc_sp, -1608, sparc_sp);
#ifdef SPARCV9
method_reg = sparc_g4;
#else
method_reg = sparc_g1;
#endif
regs_offset = MONO_SPARC_STACK_BIAS + 1000;
/* Save r1 needed by the IMT code */
sparc_sti_imm (code, sparc_g1, sparc_sp, regs_offset + (sparc_g1 * sizeof (gpointer)));
/*
* sparc_g5 contains the return address, the trampoline argument is stored in the
* instruction stream after the call.
*/
sparc_ld_imm (code, sparc_g5, 8, method_reg);
#ifdef SPARCV9
/* Save fp regs since they are not preserved by calls */
for (i = 0; i < 16; i ++)
sparc_stdf_imm (code, sparc_f0 + (i * 2), sparc_sp, MONO_SPARC_STACK_BIAS + 320 + (i * 8));
#endif
/* We receive the method address in %r1, so save it here */
sparc_sti_imm (code, method_reg, sparc_sp, MONO_SPARC_STACK_BIAS + 200);
/* Save lmf since compilation can raise exceptions */
lmf_offset = MONO_SPARC_STACK_BIAS - sizeof (MonoLMF);
/* Save the data for the parent (managed) frame */
/* Save ip */
sparc_sti_imm (code, sparc_i7, sparc_fp, lmf_offset + G_STRUCT_OFFSET (MonoLMF, ip));
/* Save sp */
sparc_sti_imm (code, sparc_fp, sparc_fp, lmf_offset + G_STRUCT_OFFSET (MonoLMF, sp));
/* Save fp */
/* Load previous fp from the saved register window */
sparc_flushw (code);
sparc_ldi_imm (code, sparc_fp, MONO_SPARC_STACK_BIAS + (sparc_i6 - 16) * sizeof (gpointer), sparc_o7);
sparc_sti_imm (code, sparc_o7, sparc_fp, lmf_offset + G_STRUCT_OFFSET (MonoLMF, ebp));
/* Save method */
sparc_sti_imm (code, method_reg, sparc_fp, lmf_offset + G_STRUCT_OFFSET (MonoLMF, method));
sparc_set (code, mono_get_lmf_addr, sparc_o7);
sparc_jmpl (code, sparc_o7, sparc_g0, sparc_o7);
sparc_nop (code);
code = mono_sparc_emit_save_lmf (code, lmf_offset);
if (has_caller) {
/* Load all registers of the caller into a table inside this frame */
/* first the out registers */
for (i = 0; i < 8; ++i)
sparc_sti_imm (code, sparc_i0 + i, sparc_sp, regs_offset + ((sparc_o0 + i) * sizeof (gpointer)));
/* then the in+local registers */
for (i = 0; i < 16; i ++) {
sparc_ldi_imm (code, sparc_fp, MONO_SPARC_STACK_BIAS + (i * sizeof (gpointer)), sparc_o7);
sparc_sti_imm (code, sparc_o7, sparc_sp, regs_offset + ((sparc_l0 + i) * sizeof (gpointer)));
}
}
tramp_addr = mono_get_trampoline_func (tramp_type);
sparc_ldi_imm (code, sparc_sp, MONO_SPARC_STACK_BIAS + 200, sparc_o2);
/* pass address of register table as third argument */
sparc_add_imm (code, FALSE, sparc_sp, regs_offset, sparc_o0);
sparc_set (code, tramp_addr, sparc_o7);
/* set %o1 to caller address */
if (has_caller)
sparc_mov_reg_reg (code, sparc_i7, sparc_o1);
else
sparc_set (code, 0, sparc_o1);
sparc_set (code, 0, sparc_o3);
sparc_jmpl (code, sparc_o7, sparc_g0, sparc_o7);
sparc_nop (code);
/* Save result */
sparc_sti_imm (code, sparc_o0, sparc_sp, MONO_SPARC_STACK_BIAS + 304);
/* Check for thread interruption */
sparc_set (code, (guint8*)mono_thread_force_interruption_checkpoint, sparc_o7);
sparc_jmpl (code, sparc_o7, sparc_g0, sparc_o7);
sparc_nop (code);
/* Restore lmf */
code = mono_sparc_emit_restore_lmf (code, lmf_offset);
/* Reload result */
sparc_ldi_imm (code, sparc_sp, MONO_SPARC_STACK_BIAS + 304, sparc_o0);
#ifdef SPARCV9
/* Reload fp regs */
for (i = 0; i < 16; i ++)
sparc_lddf_imm (code, sparc_sp, MONO_SPARC_STACK_BIAS + 320 + (i * 8), sparc_f0 + (i * 2));
#endif
sparc_jmpl (code, sparc_o0, sparc_g0, sparc_g0);
/* restore previous frame in delay slot */
sparc_restore_simple (code);
/*
{
gpointer addr;
sparc_save_imm (code, sparc_sp, -608, sparc_sp);
addr = code;
sparc_call_simple (code, 16);
sparc_nop (code);
sparc_rett_simple (code);
sparc_nop (code);
sparc_save_imm (code, sparc_sp, -608, sparc_sp);
sparc_ta (code, 1);
tramp_addr = &sparc_magic_trampoline;
sparc_call_simple (code, tramp_addr - code);
sparc_nop (code);
sparc_rett_simple (code);
sparc_nop (code);
}
*/
g_assert ((code - buf) <= 512);
mono_arch_flush_icache (buf, code - buf);
return buf;
}