Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- $Id: asmpart.S 7678 2007-04-09 17:23:55Z twisti $
-
*/
#include "vm/jit/mips/md-abi.h"
#include "vm/jit/mips/md-asm.h"
-#include "vm/jit/mips/offsets.h"
#include "vm/jit/abi-asm.h"
#include "vm/jit/methodheader.h"
.globl asm_abstractmethoderror
- .globl asm_patcher_wrapper
-
#if defined(ENABLE_REPLACEMENT)
.globl asm_replacement_out
.globl asm_replacement_in
#endif
- .globl asm_getclassvalues_atomic
- .globl asm_criticalsections
-
.globl compare_and_swap
L_asm_vm_call_method_compute_pv:
aaddiu pv,ra,-4*4
- ast s7,3*8(sp)
+ ast s0,3*8(sp) /* save callee saved register */
+ ast a0,4*8(sp) /* save method PV */
#if SIZEOF_VOID_P == 8
sdc1 fss0,5*8(sp) /* save non JavaABI saved flt registers */
sdc1 fss5,10*8(sp)
#endif
- ast a0,4*8(sp) /* save method pointer for compiler */
-
- move t0,a2 /* address of first block */
- move s7,a1 /* argument count */
- blez s7,calljava_argsloaded
- nop
+ move t0,a1 /* address of data structure */
+ move t1,a2 /* stack argument count */
+ move s0,sp /* save stack pointer */
#if SIZEOF_VOID_P == 8
- ald a0,offvmargdata(t0)
- ldc1 fa0,offvmargdata(t0)
- aaddi s7,s7,-1
- blez s7,calljava_argsloaded
- nop
-
- ald a1,offvmargdata+sizevmarg*1(t0)
- ldc1 fa1,offvmargdata+sizevmarg*1(t0)
- aaddi s7,s7,-1
- blez s7,calljava_argsloaded
- nop
-
- ald a2,offvmargdata+sizevmarg*2(t0)
- ldc1 fa2,offvmargdata+sizevmarg*2(t0)
- aaddi s7,s7,-1
- blez s7,calljava_argsloaded
- nop
-
- ald a3,offvmargdata+sizevmarg*3(t0)
- ldc1 fa3,offvmargdata+sizevmarg*3(t0)
- aaddi s7,s7,-1
- blez s7,calljava_argsloaded
- nop
-
- ald a4,offvmargdata+sizevmarg*4(t0)
- ldc1 fa4,offvmargdata+sizevmarg*4(t0)
- aaddi s7,s7,-1
- blez s7,calljava_argsloaded
- nop
-
- ald a5,offvmargdata+sizevmarg*5(t0)
- ldc1 fa5,offvmargdata+sizevmarg*5(t0)
- aaddi s7,s7,-1
- blez s7,calljava_argsloaded
- nop
-
- ald a6,offvmargdata+sizevmarg*6(t0)
- ldc1 fa6,offvmargdata+sizevmarg*6(t0)
- aaddi s7,s7,-1
- blez s7,calljava_argsloaded
- nop
-
- ald a7,offvmargdata+sizevmarg*7(t0)
- ldc1 fa7,offvmargdata+sizevmarg*7(t0)
- aaddi s7,s7,-1
+ ld a0,0*8(t0)
+ ld a1,1*8(t0)
+ ld a2,2*8(t0)
+ ld a3,3*8(t0)
+ ld a4,4*8(t0)
+ ld a5,5*8(t0)
+ ld a6,6*8(t0)
+ ld a7,7*8(t0)
+
+ ldc1 fa0,8*8(t0)
+ ldc1 fa1,9*8(t0)
+ ldc1 fa2,10*8(t0)
+ ldc1 fa3,11*8(t0)
+ ldc1 fa4,12*8(t0)
+ ldc1 fa5,13*8(t0)
+ ldc1 fa6,14*8(t0)
+ ldc1 fa7,15*8(t0)
#else /* SIZEOF_VOID_P == 8 */
-#if WORDS_BIGENDIAN == 1
- ald a0,offvmargdata+4(t0)
-#else
- ald a0,offvmargdata(t0)
-#endif
-#if !defined(ENABLE_SOFT_FLOAT)
- ldc1 fa0,offvmargdata(t0)
-#endif
- aaddi s7,s7,-1
- blez s7,calljava_argsloaded
-
-#if WORDS_BIGENDIAN == 1
- ald a1,offvmargdata+4+sizevmarg*1(t0)
-#else
- ald a1,offvmargdata+sizevmarg*1(t0)
-#endif
-#if !defined(ENABLE_SOFT_FLOAT)
- ldc1 fa1,offvmargdata+sizevmarg*1(t0)
-#endif
- aaddi s7,s7,-1
- blez s7,calljava_argsloaded
-
-#if WORDS_BIGENDIAN == 1
- ald a2,offvmargdata+4+sizevmarg*2(t0)
-#else
- ald a2,offvmargdata+sizevmarg*2(t0)
-#endif
- aaddi s7,s7,-1
- blez s7,calljava_argsloaded
+# if WORDS_BIGENDIAN == 1
+ lw a0,0*8+4(t0)
+ lw a1,1*8+4(t0)
+ lw a2,2*8+4(t0)
+ lw a3,3*8+4(t0)
+# else
+ lw a0,0*8(t0)
+ lw a1,1*8(t0)
+ lw a2,2*8(t0)
+ lw a3,3*8(t0)
+# endif
-#if WORDS_BIGENDIAN == 1
- ald a3,offvmargdata+4+sizevmarg*3(t0)
-#else
- ald a3,offvmargdata+sizevmarg*3(t0)
-#endif
- aaddi s7,s7,-1
- blez s7,calljava_argsloaded
+# if !defined(ENABLE_SOFT_FLOAT)
+ ldc1 fa0,4*8(t0)
+ ldc1 fa1,5*8(t0)
+# endif
#endif /* SIZEOF_VOID_P == 8 */
-calljava_argsloaded:
- move t4,sp /* save stack pointer */
- blez s7,calljava_nocopy
+ beqz t1,L_asm_vm_call_method_stack_copy_done
nop
-#if SIZEOF_VOID_P == 4
- aaddiu s7,s7,4 /* add stack space for 4 arguments */
-#endif
- subu t1,zero,s7 /* remaining argument count (negative) */
- sll t2,t1,3 /* calculate stackframe size */
- aaddu sp,sp,t2 /* create stackframe */
- aaddu t2,t2,t4 /* also set temp sp */
-#if SIZEOF_VOID_P == 4
- aaddiu t2,t2,4*8 /* skip stack space for 4 arguments */
- addiu t1,t1,4
-#endif
+ sll t2,t1,3 /* calculate stackframe size (* 8) */
+ asubu sp,sp,t2 /* create stackframe */
+ move t2,sp /* temporary stack pointer */
-calljava_copyloop:
+L_asm_vm_call_method_stack_copy_loop:
#if SIZEOF_VOID_P == 8
- ald t3,offvmargdata+sizevmarg*8(t0)
+ ld t3,16*8(t0) /* load argument */
+ sd t3,0(t2) /* store argument on stack */
#else
-# if WORDS_BIGENDIAN == 1
- ald t3,offvmargdata+4+sizevmarg*4(t0)
+# if !defined(ENABLE_SOFT_FLOAT)
+ lw t3,6*8+0(t0) /* load argument */
+ lw t4,6*8+4(t0)
+ sw t3,0(t2) /* store argument on stack */
+ sw t4,4(t2)
# else
- ald t3,offvmargdata+sizevmarg*4(t0)
+# error implement me
# endif
#endif
- ast t3,0(t2) /* store argument on stack */
- addi t1,t1,1 /* count 1 argument */
- aaddi t0,t0,sizevmarg /* load address of next block */
- aaddi t2,t2,8 /* increase stack position */
- bnez t1,calljava_copyloop /* all arguments copied? */
- nop
-calljava_nocopy:
- ald itmp1,4*8(t4) /* pass method pointer via itmp1 */
+ aaddi t1,t1,-1 /* subtract 1 argument */
+ aaddi t0,t0,8 /* load address of next argument */
+ aaddi t2,t2,8 /* increase stack pointer */
- ala mptr,asm_call_jit_compiler/* fake virtual function call (2 instr) */
- ast mptr,2*8(t4) /* store function address */
- ala mptr,1*8(t4) /* set method pointer */
+ bgtz t1,L_asm_vm_call_method_stack_copy_loop
+ nop
- ald pv,1*8(mptr) /* method call as in Java */
- jalr pv /* call JIT compiler */
+L_asm_vm_call_method_stack_copy_done:
+ ala mptr,4*8(s0) /* get address of PV */
+ ald pv,0*8(mptr) /* load PV */
+ jalr pv
nop
L_asm_vm_call_method_recompute_pv:
#if SIZEOF_VOID_P == 8
.set reorder /* XXX we need to recompute pv */
- sll t1,s7,3 /* remove argument stackframe */
- aaddu sp,sp,t1
+ move sp,s0 /* restore stack pointer */
calljava_return2:
ald ra,0*8(sp) /* restore return address */
ald pv,1*8(sp) /* restore procedure vector */
- ald s7,3*8(sp)
+ ald s0,3*8(sp)
#if SIZEOF_VOID_P == 8
ldc1 fss0,5*8(sp) /* restore non JavaABI saved flt regs */
j ra /* return */
asm_vm_call_method_exception_handler:
- sll t1,s7,3 /* remove stackframe */
- aaddu sp,sp,t1
+ move sp,s0 /* restore stack pointer */
#if SIZEOF_VOID_P == 4
aaddiu sp,sp,-4*4 /* reserve space for 1 argument */
#endif
.end asm_abstractmethoderror
-/* asm_patcher_wrapper *********************************************************
-
- XXX
-
- Stack layout:
- 56 return address into JIT code (patch position)
- 48 pointer to virtual java_objectheader
- 40 machine code (which is patched back later)
- 32 machine code (which is patched back later)
- 24 machine code (which is patched back later)
- 16 unresolved class/method/field reference
- 8 data segment displacement from load instructions
- 0 patcher function pointer to call
-
-*******************************************************************************/
-
- .ent asm_patcher_wrapper
-
-asm_patcher_wrapper:
-#if SIZEOF_VOID_P == 8
-
- aaddiu sp,sp,-((2+16+22+4)*8)/* create stack frame */
-
- SAVE_RETURN_REGISTERS(0) /* save 1 int/1 float return registers */
- SAVE_ARGUMENT_REGISTERS(2) /* save 8 int/8 float argument registers */
- SAVE_TEMPORARY_REGISTERS(18) /* save 5 int/16 float temporary registers */
-
- ast itmp1,(2+16+22+0)*8(sp) /* save itmp1 */
- ast itmp2,(2+16+22+1)*8(sp) /* save itmp2 */
- ast ra,(2+16+22+2)*8(sp) /* save method return address (for leafs) */
- ast pv,(2+16+22+3)*8(sp) /* save pv of calling java function */
-
- aaddiu a0,sp,(2+16+22+4)*8 /* pass SP of patcher stub */
- move a1,pv /* pass PV */
- move a2,ra /* pass RA (correct for leafs) */
- jal patcher_wrapper
- move itmp3,v0
-
- RESTORE_RETURN_REGISTERS(0) /* restore 1 int/1 float return registers */
- RESTORE_ARGUMENT_REGISTERS(2) /* restore 8 int/8 float argument registers */
- RESTORE_TEMPORARY_REGISTERS(18) /* restore 5 int/16 float temporary reg. */
-
- ald itmp1,(2+16+22+0)*8(sp) /* restore itmp1 */
- ald itmp2,(2+16+22+1)*8(sp) /* restore itmp2 */
- ald ra,(2+16+22+2)*8(sp) /* restore method return address (for leafs)*/
- ald pv,(2+16+22+3)*8(sp) /* restore pv of calling java function */
-
- bnez itmp3,L_asm_patcher_wrapper_exception
-
- ald itmp3,(7+2+16+22+4)*8(sp) /* load RA */
- aaddiu sp,sp,(8+2+16+22+4)*8 /* remove stack frame */
-
- jr itmp3 /* jump to new patched code */
-
-L_asm_patcher_wrapper_exception:
- move xptr,itmp3 /* get exception */
- ald xpc,(7+2+16+22+4)*8(sp) /* xpc is RA */
- aaddiu sp,sp,(8+2+16+22+4)*8 /* remove stack frame */
-
-#else /* SIZEOF_VOID_P == 8 */
-
- aaddiu sp,sp,-((6+4+8+16+7)*4) /* create stack frame */
- /* +7 keeps the SP 16-bytes aligned */
-
- SAVE_RETURN_REGISTERS(6) /* save 2 int / 1 float return registers */
- SAVE_ARGUMENT_REGISTERS(10) /* save 4 int / 2 float argument registers */
- SAVE_TEMPORARY_REGISTERS(18) /* save 8 int / 4 float temporary registers */
-
- ast itmp1,(6+4+8+16+0)*4(sp) /* save itmp1 */
- ast itmp2,(6+4+8+16+1)*4(sp) /* save itmp2 */
- ast ra,(6+4+8+16+2)*4(sp) /* save method return address (for leafs) */
- ast pv,(6+4+8+16+3)*4(sp) /* save pv of calling java function */
-
- aaddiu a0,sp,(6+4+8+16+7)*4 /* pass SP of patcher stub */
- move a1,pv /* pass PV */
- move a2,ra /* pass RA (correct for leafs) */
- jal patcher_wrapper
- move itmp3,v0
-
- RESTORE_RETURN_REGISTERS(6) /* restore 2 int / 2 float return registers */
- RESTORE_ARGUMENT_REGISTERS(10) /* restore 4 int / 2 float argument regs */
- RESTORE_TEMPORARY_REGISTERS(18) /* restore 8 int / 4 float temporary regs */
-
- ald itmp1,(6+4+8+16+0)*4(sp) /* restore itmp1 */
- ald itmp2,(6+4+8+16+1)*4(sp) /* restore itmp2 */
- ald ra,(6+4+8+16+2)*4(sp) /* restore method return address (for leafs)*/
- ald pv,(6+4+8+16+3)*4(sp) /* restore pv of calling java function */
-
- bnez itmp3,L_asm_wrapper_patcher_exception
-
- ald itmp3,7*8+(6+4+8+16+7)*4(sp) /* load RA */
- aaddiu sp,sp,8*8+(6+4+8+16+7)*4 /* remove stack frame */
-
- jr itmp3 /* jump to new patched code */
-
-L_asm_wrapper_patcher_exception:
- move xptr,itmp3 /* get exception */
- ald xpc,7*8+(6+4+8+16+7)*4(sp) /* xpc is RA */
- aaddiu sp,sp,8*8+(6+4+8+16+7)*4 /* remove stack frame */
-
-#endif /* SIZEOF_VOID_P == 8 */
-
- b asm_handle_exception
-
- .end asm_patcher_wrapper
-
#if defined(ENABLE_REPLACEMENT)
/* asm_replacement_out *********************************************************
#endif /* defined(ENABLE_REPLACEMENT) */
- .ent asm_getclassvalues_atomic
-
-asm_getclassvalues_atomic:
-_crit_restart:
-_crit_begin:
- lw t0,offbaseval(a0)
- lw t1,offdiffval(a0)
- lw t2,offbaseval(a1)
-_crit_end:
- sw t0,offcast_super_baseval(a2)
- sw t1,offcast_super_diffval(a2)
- sw t2,offcast_sub_baseval(a2)
- j ra
-
- .end asm_getclassvalues_atomic
-
- .data
-
-asm_criticalsections:
-#if defined(ENABLE_THREADS)
- .dword _crit_begin
- .dword _crit_end
- .dword _crit_restart
-#endif
- .dword 0
-
-
- .text
-
.ent compare_and_swap
compare_and_swap:
projects / cacao.git / blobdiff