.global asm_criticalsections
.global asm_getclassvalues_atomic
+
+ .global asm_store_fp_state_reg
+ .global asm_load_fp_state_reg
/* asm_vm_call_method ******************************************************
* *
* This function calls a Java-method (which possibly needs compilation) *
*
+ * If the java method is throwing an exception, NULL will be returned.
+ *
* C-prototype:
* java_objectheader *asm_vm_call_method(methodinfo *m, s4 vmargscount,
* vm_arg *vmargs);
asm_vm_call_method_float:
asm_vm_call_method_double:
- save %sp,-144,%sp /* 16 reg-save + 2 */
+ save %sp,-((JITSTACK_CNT+2)*8),%sp
+ add %sp,JITSTACK,%l1 /* right above window save area */
- /* %i2 not needed after _nocopy -> calculate in branch delay */
+ /* %i1 not needed after _nocopy -> calculate in branch delay */
brlez %i1, calljava_nocopy
dec %i1 /* branch delay */
ldx [%i2 + offvmargdata],%o0
+ ldx [%i2 + offvmargtype],%l2
+ cmp %l2,2
+ be,a %xcc,calljava_arg0isfloat
+ ld [%i2 + offvmargdata],fa0f /* delay: annulled if branch not taken */
ldd [%i2 + offvmargdata],fa0
+calljava_arg0isfloat:
brlez %i1,calljava_nocopy
dec %i1 /* branch delay */
ldx [%i2 + (offvmargdata+sizevmarg*1)],%o1
+ ldx [%i2 + (offvmargtype+sizevmarg*1)],%l2
+ cmp %l2,2
+ be,a %xcc,calljava_arg1isfloat
+ ld [%i2 + (offvmargdata+sizevmarg*1)],fa1f
ldd [%i2 + (offvmargdata+sizevmarg*1)],fa1
+calljava_arg1isfloat:
brlez %i1,calljava_nocopy
dec %i1
ldx [%i2 + (offvmargdata+sizevmarg*2)],%o2
+ ldx [%i2 + (offvmargtype+sizevmarg*2)],%l2
+ cmp %l2,2
+ be,a %xcc,calljava_arg2isfloat
+ ld [%i2 + (offvmargdata+sizevmarg*2)],fa2f
ldd [%i2 + (offvmargdata+sizevmarg*2)],fa2
+calljava_arg2isfloat:
brlez %i1,calljava_nocopy
dec %i1
ldx [%i2 + (offvmargdata+sizevmarg*3)],%o3
+ ldx [%i2 + (offvmargtype+sizevmarg*3)],%l2
+ cmp %l2,2
+ be,a %xcc,calljava_arg3isfloat
+ ld [%i2 + (offvmargdata+sizevmarg*3)],fa3f
ldd [%i2 + (offvmargdata+sizevmarg*3)],fa3
+calljava_arg3isfloat:
brlez %i1,calljava_nocopy
dec %i1
ldx [%i2 + (offvmargdata+sizevmarg*4)],%o4
+ ldx [%i2 + (offvmargtype+sizevmarg*4)],%l2
+ cmp %l2,2
+ be,a %xcc,calljava_arg4isfloat
+ ld [%i2 + (offvmargdata+sizevmarg*4)],fa4f
ldd [%i2 + (offvmargdata+sizevmarg*4)],fa4
+calljava_arg4isfloat:
calljava_argsloaded:
brlez %i1, calljava_nocopy
nop
sllx %i1,3,%l0 /* remaining args * 8 */
- add %sp,16*8+bias,%l1 /* right above window save area */
sub %sp,%l0,%sp /* allocate more stack space */
+ add %sp,JITSTACK,%l1 /* adjust stack begin pointer */
calljava_copyloop:
+ ldx [%i2 + (offvmargtype+sizevmarg*5)],%l2
+ cmp %l2,2
+ be %xcc,calljava_copyloop_float
+ nop
ldx [%i2 + (offvmargdata+sizevmarg*5)],%l0
stx %l0,[%l1]
+ b calljava_copy_done
+calljava_copyloop_float:
+ ld [%i2 + (offvmargdata+sizevmarg*5)],%f1
+ std %f0,[%l1]
+calljava_copy_done:
inc sizevmarg,%i2 /* src++ */
subcc %i1,1,%i1 /* arg_count-- */
bnz %xcc, calljava_copyloop /* use cc from previous instr */
mov %i0,itmp1 /* pass method info pointer via itmp1 */
setx asm_call_jit_compiler,%l0,mptr_itmp2 /* fake virtual function call (2 instr) */
- stx mptr_itmp2,[%sp + 2047 + 17*8] /* store function address */
- add %sp,2047 + 16*8,mptr_itmp2 /* set method pointer */
+ stx mptr_itmp2,[%l1 + 1*8] /* store function address */
+ mov %l1,mptr_itmp2 /* set method pointer */
ldx [1*8 + mptr_itmp2], pv_caller /* method call as in Java */
jmpl pv_caller,ra_caller /* call JIT compiler */
nop
return %i7 + 8 /* implicit window restore */
asm_vm_call_method_end:
- nop
+ mov zero,%o0 /* delay: return NULL */
asm_call_jit_compiler:
/* stacksave for regsave(16) + argslots(6) + float args */
- save %sp,-((16+6+FLT_ARG_CNT)*8),%sp
+ /* Note: +1 to keep stack 16-byte aligned */
+ save %sp,-((16+6+FLT_ARG_CNT+1)*8),%sp
SAVE_FLOAT_ARGUMENT_REGISTERS(22)
mov pv_callee,pv_caller
/* create window and stack frame */
- save %sp,-((FLT_ARG_CNT+FLT_TMP_CNT+CSTACK_CNT+4)*8),%sp
+ save %sp,-((FLT_ARG_CNT+FLT_TMP_CNT+CSTACK_CNT+6)*8),%sp
- SAVE_FLOAT_ARGUMENT_REGISTERS(CSTACK_CNT)
- SAVE_FLOAT_TEMPORARY_REGISTERS(CSTACK_CNT+FLT_ARG_CNT)
+ SAVE_FLOAT_RETURN_REGISTER(CSTACK_CNT)
+ SAVE_FLOAT_ARGUMENT_REGISTERS(CSTACK_CNT+1)
+ SAVE_FLOAT_TEMPORARY_REGISTERS(CSTACK_CNT+1+FLT_ARG_CNT)
mov itmp1,%l0 /* save itmp1 */
mov itmp2,%l1 /* save itmp2 */
call patcher_wrapper
nop
- RESTORE_FLOAT_ARGUMENT_REGISTERS(CSTACK_CNT)
- RESTORE_FLOAT_TEMPORARY_REGISTERS(CSTACK_CNT+FLT_ARG_CNT)
+ RESTORE_FLOAT_RETURN_REGISTER(CSTACK_CNT)
+ RESTORE_FLOAT_ARGUMENT_REGISTERS(CSTACK_CNT+1)
+ RESTORE_FLOAT_TEMPORARY_REGISTERS(CSTACK_CNT+1+FLT_ARG_CNT)
mov %l0,itmp1 /* restore itmp1 */
mov %l1,itmp2 /* restore itmp2 */
nop
+
+/* asm_store_fp_state_reg **************************************************
+ * *
+ * This function stores the 64-bit floating point state register to a *
+ * memory location. (which needs to be 8-byte aligned) *
+ * *
+ * C-prototype: *
+ * void asm_store_fp_state_reg(u8 *mem); *
+ * *
+ **************************************************************************/
+
+asm_store_fp_state_reg:
+ stx %fsr,[%o0]
+ retl /* return from leaf */
+ nop
+
+/* asm_load_fp_state_reg ***************************************************
+ * *
+ * This function loades the 64-bit floating point state register from a *
+ * memory location. (which needs to be 8-byte aligned) *
+ * *
+ * C-prototype: *
+ * void asm_load_fp_state_reg(u8 *mem); *
+ * *
+ **************************************************************************/
+
+asm_load_fp_state_reg:
+ ldx [%o0],%fsr
+ retl /* return from leaf */
+ nop
+
+
+
+
asm_getclassvalues_atomic:
_crit_restart:
_crit_begin:
.xword _crit_restart
#endif
.xword 0
+
+/* disable exec-stacks ********************************************************/
+
+#if defined(__linux__) && defined(__ELF__)
+ .section .note.GNU-stack,"",%progbits
+#endif
+/*
+ * These are local overrides for various environment variables in Emacs.
+ * Please do not remove this and leave it at the end of the file, where
+ * Emacs will automagically detect them.
+ * ---------------------------------------------------------------------
+ * Local variables:
+ * mode: asm
+ * indent-tabs-mode: t
+ * c-basic-offset: 4
+ * tab-width: 4
+ * End:
+ * vim:noexpandtab:sw=4:ts=4:
+ */
projects / cacao.git / blobdiff