/* src/vm/jit/mips/asmpart.S - Java-C interface functions for MIPS
- Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
- C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
- E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
- J. Wenninger, Institut f. Computersprachen - TU Wien
+ Copyright (C) 1996-2005, 2006, 2007, 2008
+ CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
This file is part of CACAO.
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- Contact: cacao@cacaojvm.org
-
- Authors: Andreas Krall
-
- Changes: Christian Thalinger
- Edwin Steiner
-
- $Id: asmpart.S 4821 2006-04-24 10:08:07Z 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_vm_call_method_float
.globl asm_vm_call_method_double
.globl asm_vm_call_method_exception_handler
+ .globl asm_vm_call_method_end
- .globl asm_call_jit_compiler
.globl asm_handle_exception
.globl asm_handle_nat_exception
- .globl asm_wrapper_patcher
-
- .globl asm_replacement_out
- .globl asm_replacement_in
+ .globl asm_abstractmethoderror
- .globl asm_perform_threadswitch
- .globl asm_initialize_thread_stack
- .globl asm_switchstackandcall
- .globl asm_getclassvalues_atomic
- .globl asm_criticalsections
- .globl compare_and_swap
-
-
-/********************* function asm_calljavafunction ***************************
+/* asm_vm_call_method **********************************************************
* *
* This function calls a Java-method (which possibly needs compilation) *
* with up to 4 address parameters. *
.align 3
- .dword 0 /* catch type all */
- .dword 0 /* handler pc */
- .dword 0 /* end pc */
- .dword 0 /* start pc */
- .word 1 /* extable size */
- .word 0 /* 4-byte ALIGNMENT PADDING */
- .dword 0 /* line number table start */
- .dword 0 /* line number table size */
- .word 0 /* 4-byte ALIGNMENT PADDING */
+#if SIZEOF_VOID_P == 8
+
.word 0 /* fltsave */
.word 0 /* intsave */
.word 0 /* isleaf */
- .word 0 /* IsSync */
.word 0 /* frame size */
- .dword 0 /* method pointer (pointer to name) */
+ .dword 0 /* codeinfo pointer */
+
+#else /* SIZEOF_VOID_P == 8 */
+
+ .word 0 /* fltsave */
+ .word 0 /* intsave */
+ .word 0 /* isleaf */
+ .word 0 /* frame size */
+ .word 0 /* method pointer (pointer to name) */
+
+#endif /* SIZEOF_VOID_P == 8 */
asm_vm_call_method:
asm_vm_call_method_int:
.set noreorder /* XXX we need to recompute pv */
aaddiu sp,sp,-12*8 /* allocate stack space (only 11 needed)*/
- ast ra,0(sp) /* save return address */
+ ast ra,0*8(sp) /* save return address */
bal L_asm_vm_call_method_compute_pv
ast pv,1*8(sp) /* procedure vector */
L_asm_vm_call_method_compute_pv:
aaddiu pv,ra,-4*4
- ast s7,3*8(sp)
-
- sdc1 fss0,5*8(sp) /* save non JavaABI saved flt registers */
- sdc1 fss1,6*8(sp)
- sdc1 fss2,7*8(sp)
- sdc1 fss3,8*8(sp)
- sdc1 fss4,9*8(sp)
- sdc1 fss5,10*8(sp)
-
- ast a0,4*8(sp) /* save method pointer for compiler */
-
- move t0,a2
- move s7,a1
- blez s7,calljava_argsloaded
- nop
- ald a0,offvmargdata(t0)
- ldc1 fa0,offvmargdata(t0)
- daddi s7,s7,-1
- blez s7,calljava_argsloaded
- nop
+ ast s0,3*8(sp) /* save callee saved register */
+ ast a0,4*8(sp) /* save method PV */
- ald a1,offvmargdata+sizevmarg*1(t0)
- ldc1 fa1,offvmargdata+sizevmarg*1(t0)
- daddi s7,s7,-1
- blez s7,calljava_argsloaded
- nop
+#if SIZEOF_VOID_P == 8
+ s.d fss0,5*8(sp) /* save non JavaABI saved flt registers */
+ s.d fss1,6*8(sp)
+ s.d fss2,7*8(sp)
+ s.d fss3,8*8(sp)
+ s.d fss4,9*8(sp)
+ s.d fss5,10*8(sp)
+#endif
- ald a2,offvmargdata+sizevmarg*2(t0)
- ldc1 fa2,offvmargdata+sizevmarg*2(t0)
- daddi s7,s7,-1
- blez s7,calljava_argsloaded
+ move t0,a1 /* address of data structure */
+ move t1,a2 /* stack argument count */
+ move s0,sp /* save stack pointer */
+
+#if SIZEOF_VOID_P == 8
+
+ 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)
+
+ l.d fa0,8*8(t0)
+ l.d fa1,9*8(t0)
+ l.d fa2,10*8(t0)
+ l.d fa3,11*8(t0)
+ l.d fa4,12*8(t0)
+ l.d fa5,13*8(t0)
+ l.d fa6,14*8(t0)
+ l.d fa7,15*8(t0)
+
+#else /* SIZEOF_VOID_P == 8 */
+
+# 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 !defined(ENABLE_SOFT_FLOAT)
+ l.d fa0,4*8(t0)
+ l.d fa1,5*8(t0)
+# endif
+
+#endif /* SIZEOF_VOID_P == 8 */
+
+ beqz t1,L_asm_vm_call_method_stack_copy_done
nop
- ald a3,offvmargdata+sizevmarg*3(t0)
- ldc1 fa3,offvmargdata+sizevmarg*3(t0)
- daddi s7,s7,-1
- blez s7,calljava_argsloaded
- nop
+ sll t2,t1,3 /* calculate stackframe size (* 8) */
+ asubu sp,sp,t2 /* create stackframe */
+ move t2,sp /* temporary stack pointer */
- ald a4,offvmargdata+sizevmarg*4(t0)
- ldc1 fa4,offvmargdata+sizevmarg*4(t0)
- daddi s7,s7,-1
- blez s7,calljava_argsloaded
- nop
+L_asm_vm_call_method_stack_copy_loop:
+#if SIZEOF_VOID_P == 8
+ ld t3,16*8(t0) /* load argument */
+ sd t3,0(t2) /* store argument on stack */
+#else
+# 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
+# error implement me
+# endif
+#endif
- ald a5,offvmargdata+sizevmarg*5(t0)
- ldc1 fa5,offvmargdata+sizevmarg*5(t0)
- daddi s7,s7,-1
- blez s7,calljava_argsloaded
- nop
+ aaddi t1,t1,-1 /* subtract 1 argument */
+ aaddi t0,t0,8 /* load address of next argument */
+ aaddi t2,t2,8 /* increase stack pointer */
- ald a6,offvmargdata+sizevmarg*6(t0)
- ldc1 fa6,offvmargdata+sizevmarg*6(t0)
- daddi s7,s7,-1
- blez s7,calljava_argsloaded
+ bgtz t1,L_asm_vm_call_method_stack_copy_loop
nop
- ald a7,offvmargdata+sizevmarg*7(t0)
- ldc1 fa7,offvmargdata+sizevmarg*7(t0)
- daddi s7,s7,-1
-
-calljava_argsloaded:
- move t8,sp /* save stack pointer */
- blez s7,calljava_nocopy
- nop
- subu t1,zero,s7
- sll t2,t1,3
- aaddu sp,sp,t2
- aaddu t2,t2,t8
-
-calljava_copyloop:
- ald t3,offvmargdata+sizevmarg*8(t0)
- ast t3,0(t2)
- ala t1,1(t1)
- ala t0,sizevmarg(t0)
- ala t2,8(t2)
- bnez t1,calljava_copyloop
- nop
-
-calljava_nocopy:
- ald itmp1,4*8(t8) /* pass method pointer via itmp1 */
-
- ala mptr,asm_call_jit_compiler/* fake virtual function call (2 instr) */
- ast mptr,2*8(t8) /* store function address */
- ala mptr,1*8(t8) /* set method pointer */
-
- 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:
-/* aaddiu pv,ra,(asm_vm_call_method - L_asm_vm_call_method_recompute_pv)*/
+#if SIZEOF_VOID_P == 8
aaddiu pv,ra,-76*4 /* recompute procedure vector */
+#else
+ aaddiu pv,ra,(asm_vm_call_method - L_asm_vm_call_method_recompute_pv)
+#endif
.set reorder /* XXX we need to recompute pv */
calljava_return2:
- ald ra,0(sp) /* restore return address */
- ald pv,8(sp) /* restore procedure vector */
- ald s7,3*8(sp)
-
- ldc1 fss0,5*8(sp) /* restore non JavaABI saved flt regs */
- ldc1 fss1,6*8(sp)
- ldc1 fss2,7*8(sp)
- ldc1 fss3,8*8(sp)
- ldc1 fss4,9*8(sp)
- ldc1 fss5,10*8(sp)
+ move sp,s0 /* restore stack pointer */
+
+ ald ra,0*8(sp) /* restore return address */
+ ald pv,1*8(sp) /* restore procedure vector */
+ ald s0,3*8(sp)
+
+#if SIZEOF_VOID_P == 8
+ l.d fss0,5*8(sp) /* restore non JavaABI saved flt regs */
+ l.d fss1,6*8(sp)
+ l.d fss2,7*8(sp)
+ l.d fss3,8*8(sp)
+ l.d fss4,9*8(sp)
+ l.d fss5,10*8(sp)
+#endif
aaddiu sp,sp,12*8 /* free stack space */
j ra /* return */
asm_vm_call_method_exception_handler:
- asll s7,s7,3
- aaddu sp,s7,sp
+ move sp,s0 /* restore stack pointer */
+#if SIZEOF_VOID_P == 4
+ aaddiu sp,sp,-4*4 /* reserve space for 1 argument */
+#endif
+
move a0,itmp1
jal builtin_throw_exception
+#if SIZEOF_VOID_P == 4
+ aaddiu sp,sp,4*4
+#endif
+asm_vm_call_method_end:
b calljava_return2
.end asm_vm_call_method
-/****************** function asm_call_jit_compiler *****************************
-* *
-* invokes the compiler for untranslated JavaVM methods. *
-* *
-* Register REG_ITEMP1 contains a pointer to the method info structure *
-* (prepared by createcompilerstub). Using the return address in R31 and the *
-* offset in the LDA instruction or using the value in methodptr R25 the *
-* patching address for storing the method address can be computed: *
-* *
-* method address was either loaded using *
-* M_ALD (REG_PV, REG_PV, a) ; invokestatic/special ($28) *
-* M_JSR (REG_RA, REG_PV); *
-* M_NOP *
-* M_LDA (REG_PV, REG_RA, val) *
-* or *
-* M_ALD (REG_PV, REG_METHODPTR, m) ; invokevirtual/interface ($25) *
-* M_JSR (REG_RA, REG_PV); *
-* M_NOP *
-* in the static case the method pointer can be computed using the *
-* return address and the lda function following the jmp instruction *
-* *
-*******************************************************************************/
-
-
- .ent asm_call_jit_compiler
-
-asm_call_jit_compiler:
- aaddiu sp,sp,-(20*8+sizestackframeinfo) /* allocate stack space */
-
- SAVE_ARGUMENT_REGISTERS(0)
-
- ast mptr,16*8(sp) /* save method pointer */
- ast ra,17*8(sp) /* save return address */
- ast itmp1,18*8(sp) /* save methodinfo pointer */
-
- aaddiu a0,sp,20*8 /* create stackframe info */
- move a1,zero /* we don't have pv handy */
- aaddiu a2,sp,(20*8+sizestackframeinfo) /* pass java sp */
- ald a3,17*8(sp) /* pass java ra */
- move a4,a3 /* xpc is equal to ra */
- jal stacktrace_create_extern_stackframeinfo
-
- ald a0,18*8(sp) /* pass methodinfo pointer */
- jal jit_compile /* jit compiler */
- ast v0,18*8(sp) /* save return value */
-
- aaddiu a0,sp,20*8 /* remove stackframe info */
- jal stacktrace_remove_stackframeinfo
-
- ald a0,17*8(sp) /* pass return address */
- aaddiu a1,sp,20*8 /* pass stackframeinfo (for PV) */
- ald a2,16*8(sp) /* pass method pointer */
- jal md_get_method_patch_address /* get address of patch position */
- move t0,v0 /* move offset to t0 for later use */
-
- RESTORE_ARGUMENT_REGISTERS(0)
-
- ald ra,17*8(sp) /* restore return address */
- ald v0,18*8(sp) /* restore return value */
- aaddiu sp,sp,20*8+sizestackframeinfo /* deallocate stack area */
-
- beqz v0,L_asm_call_jit_compiler_exception
-
- ast v0,0(t0) /* store new method address */
- move pv,v0 /* move method address into pv */
- jr pv /* and call method. The method returns */
- /* directly to the caller (ra). */
-
-L_asm_call_jit_compiler_exception:
-#if defined(USE_THREADS) && defined(NATIVE_THREADS)
- aaddiu sp,sp,-2*8
- ast ra,0*8(sp)
- jal builtin_asm_get_exceptionptrptr
- ald ra,0*8(sp)
- aaddiu sp,sp,2*8
-#else
- la v0,_exceptionptr
-#endif
- ald xptr,0(v0) /* get the exception pointer */
- ast zero,0(v0) /* clear the exception pointer */
-
- aaddiu xpc,ra,-4 /* faulting address is return adress - 4 */
- b asm_handle_nat_exception
-
- .end asm_call_jit_compiler
-
-
/* asm_handle_exception ********************************************************
This function handles an exception. It does not use the usual calling
asm_handle_nat_exception:
L_asm_handle_exception_stack_loop:
- aaddiu sp,sp,-6*8 /* allocate stack */
+#if SIZEOF_VOID_P == 8
+ aaddiu sp,sp,-6*8 /* keep stack 16-byte aligned */
ast xptr,0*8(sp) /* save exception pointer */
ast xpc,1*8(sp) /* save exception pc */
- ast ra,3*8(sp) /* save return address */
+ ast ra,3*8(sp) /* save RA */
ast zero,4*8(sp) /* save maybe-leaf flag (cleared) */
+#else
+ aaddiu sp,sp,-(4*4+6*8) /* allocate stack */
+ ast xptr,4*4+0*8(sp) /* save exception pointer */
+ ast xpc,4*4+1*8(sp) /* save exception pc */
+ ast ra,4*4+3*8(sp) /* save return address */
+ ast zero,4*4+4*8(sp) /* save maybe-leaf flag (cleared) */
+#endif
+
+ move a0,ra /* pass RA */
+ jal md_asm_codegen_get_pv_from_pc /* get PV from RA */
- move a0,ra /* pass return address */
- jal md_codegen_findmethod /* get PV from RA */
- ast v0,2*8(sp) /* save data segment pointer */
+#if SIZEOF_VOID_P == 8
+ ast v0,2*8(sp) /* save PV */
- ald a0,0*8(sp) /* pass exception pointer */
- ald a1,1*8(sp) /* pass exception pc */
+ ald a0,0*8(sp) /* pass xptr */
+ ald a1,1*8(sp) /* pass xpc */
+ move a2,v0 /* pass PV */
+ aaddiu a3,sp,6*8 /* pass Java SP */
+#else
+ ast v0,4*4+2*8(sp) /* save data segment pointer */
+
+ ald a0,4*4+0*8(sp) /* pass exception pointer */
+ ald a1,4*4+1*8(sp) /* pass exception pc */
move a2,v0 /* pass data segment pointer */
- aaddiu a3,sp,6*8 /* pass Java stack pointer */
+ aaddiu a3,sp,(4*4+6*8) /* pass Java stack pointer */
+#endif
b L_asm_handle_exception_continue
SAVE_ARGUMENT_REGISTERS(0) /* we save arg and temp registers in */
SAVE_TEMPORARY_REGISTERS(ARG_CNT) /* case this is a leaf method */
+#if SIZEOF_VOID_P == 8
aaddiu sp,sp,-6*8 /* allocate stack */
ast xptr,0*8(sp) /* save exception pointer */
- ast xpc,1*8(sp) /* save exception pc */
- ast pv,2*8(sp) /* save data segment pointer */
- ast ra,3*8(sp) /* save return address */
+ ast pv,2*8(sp) /* save PV */
+ ast ra,3*8(sp) /* save RA */
addu t0,zero,1 /* set maybe-leaf flag */
ast t0,4*8(sp) /* save maybe-leaf flag */
+#else
+ aaddiu sp,sp,-(4*4+6*8) /* allocate stack */
+ ast xptr,4*4+0*8(sp) /* save exception pointer */
+ ast xpc,4*4+1*8(sp) /* save exception pc */
+ ast pv,4*4+2*8(sp) /* save data segment pointer */
+ ast ra,4*4+3*8(sp) /* save return address */
+ addu t0,zero,1 /* set maybe-leaf flag */
+ ast t0,4*4+4*8(sp) /* save maybe-leaf flag */
+#endif
- move a0,xptr /* pass exception pointer */
- move a1,xpc /* pass exception pc */
- move a2,pv /* pass data segment pointer */
- aaddiu a3,sp,(ARG_CNT+TMP_CNT+6)*8 /* pass Java stack pointer */
+ move a0,xptr /* pass xptr */
+ move a1,xpc /* pass xpc */
+ move a2,pv /* pass PV */
+
+#if SIZEOF_VOID_P == 8
+ aaddiu a3,sp,(ARG_CNT+TMP_CNT+6)*8 /* pass Java SP */
+#else
+ aaddiu a3,sp,4*4+(ARG_CNT+TMP_CNT+6)*8 /* pass Java stack pointer */
+#endif
L_asm_handle_exception_continue:
jal exceptions_handle_exception
beqz v0,L_asm_handle_exception_not_catched
move xpc,v0 /* move handlerpc into xpc */
+
+#if SIZEOF_VOID_P == 8
ald xptr,0*8(sp) /* restore exception pointer */
- ald pv,2*8(sp) /* restore data segment pointer */
- ald ra,3*8(sp) /* restore return address */
+ ald pv,2*8(sp) /* restore PV */
+ ald ra,3*8(sp) /* restore RA */
ald t0,4*8(sp) /* get maybe-leaf flag */
aaddiu sp,sp,6*8 /* free stackframe */
+#else
+ ald xptr,4*4+0*8(sp) /* restore exception pointer */
+ ald pv,4*4+2*8(sp) /* restore data segment pointer */
+ ald ra,4*4+3*8(sp) /* restore return address */
+ ald t0,4*4+4*8(sp) /* get maybe-leaf flag */
+ aaddiu sp,sp,4*4+6*8 /* free stackframe */
+#endif
beqz t0,L_asm_handle_exception_no_leaf
jr xpc /* jump to the handler */
L_asm_handle_exception_not_catched:
- ald xptr,0*8(sp) /* restore exception pointer */
- ald pv,2*8(sp) /* restore data segment pointer */
- ald ra,3*8(sp) /* restore return address */
+#if SIZEOF_VOID_P == 8
+ ald xptr,0*8(sp) /* restore xptr */
+ ald pv,2*8(sp) /* restore PV */
+ ald ra,3*8(sp) /* restore RA */
ald t0,4*8(sp) /* get maybe-leaf flag */
aaddiu sp,sp,6*8 /* free stackframe */
+#else
+ ald xptr,4*4+0*8(sp) /* restore xptr */
+ ald pv,4*4+2*8(sp) /* restore PV */
+ ald ra,4*4+3*8(sp) /* restore RA */
+ ald t0,4*4+4*8(sp) /* get maybe-leaf flag */
+ aaddiu sp,sp,4*4+6*8 /* free stackframe */
+#endif
beqz t0,L_asm_handle_exception_no_leaf_stack
ald s5,-3*8(t1)
ald s6,-2*8(t1)
ald s7,-1*8(t1)
+
ex_int2:
sll t2,t2,1 /* t2 = register count * 4 * 2 */
asubu t1,t1,t2 /* t1 = t0 - 8 * register count */
asubu t3,t3,t2 /* t3 = ex_int_sav - 4 * register count */
jr t3 /* jump to save position */
- ldc1 fs0,-4*8(t1)
- ldc1 fs1,-3*8(t1)
- ldc1 fs2,-2*8(t1)
- ldc1 fs3,-1*8(t1)
+#if SIZEOF_VOID_P == 8
+ l.d fs0,-4*8(t1)
+ l.d fs1,-3*8(t1)
+ l.d fs2,-2*8(t1)
+ l.d fs3,-1*8(t1)
+#else
+# if !defined(ENABLE_SOFT_FLOAT)
+ l.d fs0,-6*8(t1)
+ l.d fs1,-5*8(t1)
+ l.d fs2,-4*8(t1)
+ l.d fs3,-3*8(t1)
+ l.d fs4,-2*8(t1)
+ l.d fs5,-1*8(t1)
+# endif
+#endif
ex_flt2:
lw t1,FrameSize(pv) /* get frame size */
.end asm_handle_nat_exception
-/* asm_wrapper_patcher *********************************************************
-
- XXX
-
- Stack layout:
- 40 return address into JIT code (patch position)
- 32 pointer to virtual java_objectheader
- 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_wrapper_patcher
-
-asm_wrapper_patcher:
- aaddiu sp,sp,-((2+16+22+4)*8+sizestackframeinfo) /* 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 /* create stackframe info */
- move a1,pv /* pass java pv */
- aaddiu a2,sp,((6+2+16+22+4)*8+sizestackframeinfo) /* pass java sp */
- move a3,ra /* this is correct for leafs */
- ald a4,((5+2+16+22+4)*8+sizestackframeinfo)(sp) /* pass xpc */
- jal stacktrace_create_extern_stackframeinfo
-
- aaddiu a0,sp,((0+2+16+22+4)*8+sizestackframeinfo) /* pass sp */
- ald itmp3,((0+2+16+22+4)*8+sizestackframeinfo)(sp) /* get function */
- ald itmp1,(2+16+22+3)*8(sp) /* save pv to the position of fp */
- ast itmp1,((0+2+16+22+4)*8+sizestackframeinfo)(sp)
- jalr itmp3
- ast v0,((0+2+16+22+4)*8+sizestackframeinfo)(sp) /* save return value */
-
- aaddiu a0,sp,(2+16+22+4)*8 /* remove stackframe info */
- jal stacktrace_remove_stackframeinfo
-
- 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 */
-
- ald itmp3,((0+2+16+22+4)*8+sizestackframeinfo)(sp) /* get return value*/
- beqz itmp3,L_asm_wrapper_patcher_exception
-
- ald itmp3,((5+2+16+22+4)*8+sizestackframeinfo)(sp) /* get RA to JIT */
- aaddiu sp,sp,((6+2+16+22+4)*8+sizestackframeinfo) /* remove stack frame */
-
- jr itmp3 /* jump to new patched code */
-
-L_asm_wrapper_patcher_exception:
- ald xpc,((5+2+16+22+4)*8+sizestackframeinfo)(sp) /* RA to JIT is xpc */
- aaddiu sp,sp,((6+2+16+22+4)*8+sizestackframeinfo) /* remove stack frame */
-
-#if defined(USE_THREADS) && defined(NATIVE_THREADS)
- daddiu sp,sp,-4*8
- sd xpc,0*8(sp)
- sd ra,1*8(sp)
- sd pv,2*8(sp)
- jal builtin_asm_get_exceptionptrptr
- ld xpc,0*8(sp)
- ld ra,1*8(sp)
- ld pv,2*8(sp)
- daddiu sp,sp,4*8
-#else
- la v0,_exceptionptr
-#endif
- ld xptr,0(v0) /* get the exception pointer */
- sd zero,0(v0) /* clear the exception pointer */
- b asm_handle_exception
-
- .end asm_wrapper_patcher
-
-
-/* asm_replacement_out *********************************************************
-
- This code is jumped to from the replacement-out stubs that are executed
- when a thread reaches an activated replacement point.
-
- The purpose of asm_replacement_out is to read out the parts of the
- execution state that cannot be accessed from C code, store this state,
- and then call the C function replace_me.
-
- Stack layout:
- 16 start of stack inside method to replace
- 0 rplpoint * info on the replacement point that was reached
-
- NOTE: itmp3 has been clobbered by the replacement-out stub!
-
-*******************************************************************************/
-
-/* some room to accomodate changes of the stack frame size during replacement */
- /* XXX we should find a cleaner solution here */
-#define REPLACEMENT_ROOM 512
-
-#define REPLACEMENT_STACK_OFFSET ((sizeexecutionstate + REPLACEMENT_ROOM + 0xf) & ~0xf)
-
- .ent asm_replacement_out
-
-asm_replacement_out:
- /* create stack frame */
- daddiu sp,sp,-REPLACEMENT_STACK_OFFSET
-
- /* save registers in execution state */
- sd $0 ,( 0*8+offes_intregs)(sp)
- sd $1 ,( 1*8+offes_intregs)(sp)
- sd $2 ,( 2*8+offes_intregs)(sp)
- sd $3 ,( 3*8+offes_intregs)(sp)
- sd $4 ,( 4*8+offes_intregs)(sp)
- sd $5 ,( 5*8+offes_intregs)(sp)
- sd $6 ,( 6*8+offes_intregs)(sp)
- sd $7 ,( 7*8+offes_intregs)(sp)
- sd $8 ,( 8*8+offes_intregs)(sp)
- sd $9 ,( 9*8+offes_intregs)(sp)
- sd $10,(10*8+offes_intregs)(sp)
- sd $11,(11*8+offes_intregs)(sp)
- sd $12,(12*8+offes_intregs)(sp)
- sd $13,(13*8+offes_intregs)(sp)
- sd $14,(14*8+offes_intregs)(sp)
- sd $15,(15*8+offes_intregs)(sp)
- sd $16,(16*8+offes_intregs)(sp)
- sd $17,(17*8+offes_intregs)(sp)
- sd $18,(18*8+offes_intregs)(sp)
- sd $19,(19*8+offes_intregs)(sp)
- sd $20,(20*8+offes_intregs)(sp)
- sd $21,(21*8+offes_intregs)(sp)
- sd $22,(22*8+offes_intregs)(sp)
- sd $23,(23*8+offes_intregs)(sp)
- sd $24,(24*8+offes_intregs)(sp)
- sd $25,(25*8+offes_intregs)(sp)
- sd $26,(26*8+offes_intregs)(sp)
- sd $27,(27*8+offes_intregs)(sp)
- sd $28,(28*8+offes_intregs)(sp)
- sd $29,(29*8+offes_intregs)(sp)
- sd $30,(30*8+offes_intregs)(sp)
- sd $31,(31*8+offes_intregs)(sp)
-
- sdc1 $f0 ,( 0*8+offes_fltregs)(sp)
- sdc1 $f1 ,( 1*8+offes_fltregs)(sp)
- sdc1 $f2 ,( 2*8+offes_fltregs)(sp)
- sdc1 $f3 ,( 3*8+offes_fltregs)(sp)
- sdc1 $f4 ,( 4*8+offes_fltregs)(sp)
- sdc1 $f5 ,( 5*8+offes_fltregs)(sp)
- sdc1 $f6 ,( 6*8+offes_fltregs)(sp)
- sdc1 $f7 ,( 7*8+offes_fltregs)(sp)
- sdc1 $f8 ,( 8*8+offes_fltregs)(sp)
- sdc1 $f9 ,( 9*8+offes_fltregs)(sp)
- sdc1 $f10,(10*8+offes_fltregs)(sp)
- sdc1 $f11,(11*8+offes_fltregs)(sp)
- sdc1 $f12,(12*8+offes_fltregs)(sp)
- sdc1 $f13,(13*8+offes_fltregs)(sp)
- sdc1 $f14,(14*8+offes_fltregs)(sp)
- sdc1 $f15,(15*8+offes_fltregs)(sp)
- sdc1 $f16,(16*8+offes_fltregs)(sp)
- sdc1 $f17,(17*8+offes_fltregs)(sp)
- sdc1 $f18,(18*8+offes_fltregs)(sp)
- sdc1 $f19,(19*8+offes_fltregs)(sp)
- sdc1 $f20,(20*8+offes_fltregs)(sp)
- sdc1 $f21,(21*8+offes_fltregs)(sp)
- sdc1 $f22,(22*8+offes_fltregs)(sp)
- sdc1 $f23,(23*8+offes_fltregs)(sp)
- sdc1 $f24,(24*8+offes_fltregs)(sp)
- sdc1 $f25,(25*8+offes_fltregs)(sp)
- sdc1 $f26,(26*8+offes_fltregs)(sp)
- sdc1 $f27,(27*8+offes_fltregs)(sp)
- sdc1 $f28,(28*8+offes_fltregs)(sp)
- sdc1 $f29,(29*8+offes_fltregs)(sp)
- sdc1 $f30,(30*8+offes_fltregs)(sp)
- sdc1 $f31,(31*8+offes_fltregs)(sp)
-
- /* calculate sp of method */
- daddiu itmp1,sp,(REPLACEMENT_STACK_OFFSET + 2*8)
- sd itmp1,(offes_sp)(sp)
-
- /* store pv */
- sd pv,(offes_pv)(sp)
-
- /* call replace_me */
- ld a0,-(2*8)(itmp1) /* arg0: rplpoint * */
- move a1,sp /* arg1: execution state */
- jal replace_me /* call C function replace_me */
- jal abort /* NEVER REACHED */
-
- .end asm_replacement_out
-
-/* asm_replacement_in **********************************************************
-
- This code writes the given execution state and jumps to the replacement
- code.
-
- This function never returns!
-
- NOTE: itmp3 is not restored!
-
- C prototype:
- void asm_replacement_in(executionstate *es);
-
-*******************************************************************************/
-
- .ent asm_replacement_in
-
-asm_replacement_in:
- /* a0 == executionstate *es */
-
- /* set new sp and pv */
- ld sp,(offes_sp)(a0)
- ld pv,(offes_pv)(a0)
-
- /* copy registers from execution state */
- /* $0 is zero */
- ld $1 ,( 1*8+offes_intregs)(a0)
- ld $2 ,( 2*8+offes_intregs)(a0)
- ld $3 ,( 2*8+offes_intregs)(a0)
- /* a0 is loaded below */
- ld $5 ,( 5*8+offes_intregs)(a0)
- ld $6 ,( 6*8+offes_intregs)(a0)
- ld $7 ,( 7*8+offes_intregs)(a0)
- ld $8 ,( 8*8+offes_intregs)(a0)
- ld $9 ,( 9*8+offes_intregs)(a0)
- ld $10,(10*8+offes_intregs)(a0)
- ld $11,(11*8+offes_intregs)(a0)
- ld $12,(12*8+offes_intregs)(a0)
- ld $13,(13*8+offes_intregs)(a0)
- ld $14,(14*8+offes_intregs)(a0)
- ld $15,(15*8+offes_intregs)(a0)
- ld $16,(16*8+offes_intregs)(a0)
- ld $17,(17*8+offes_intregs)(a0)
- ld $18,(18*8+offes_intregs)(a0)
- ld $19,(19*8+offes_intregs)(a0)
- ld $20,(20*8+offes_intregs)(a0)
- ld $21,(21*8+offes_intregs)(a0)
- ld $22,(22*8+offes_intregs)(a0)
- ld $23,(23*8+offes_intregs)(a0)
- ld $24,(24*8+offes_intregs)(a0)
- ld $25,(25*8+offes_intregs)(a0)
- ld $26,(26*8+offes_intregs)(a0)
- ld $27,(27*8+offes_intregs)(a0)
- ld $28,(28*8+offes_intregs)(a0)
- /* $29 is sp */
- /* $30 is pv */
- ld $31,(31*8+offes_intregs)(a0)
-
- ldc1 $f0 ,( 0*8+offes_fltregs)(a0)
- ldc1 $f1 ,( 1*8+offes_fltregs)(a0)
- ldc1 $f2 ,( 2*8+offes_fltregs)(a0)
- ldc1 $f3 ,( 3*8+offes_fltregs)(a0)
- ldc1 $f4 ,( 4*8+offes_fltregs)(a0)
- ldc1 $f5 ,( 5*8+offes_fltregs)(a0)
- ldc1 $f6 ,( 6*8+offes_fltregs)(a0)
- ldc1 $f7 ,( 7*8+offes_fltregs)(a0)
- ldc1 $f8 ,( 8*8+offes_fltregs)(a0)
- ldc1 $f9 ,( 9*8+offes_fltregs)(a0)
- ldc1 $f10,(10*8+offes_fltregs)(a0)
- ldc1 $f11,(11*8+offes_fltregs)(a0)
- ldc1 $f12,(12*8+offes_fltregs)(a0)
- ldc1 $f13,(13*8+offes_fltregs)(a0)
- ldc1 $f14,(14*8+offes_fltregs)(a0)
- ldc1 $f15,(15*8+offes_fltregs)(a0)
- ldc1 $f16,(16*8+offes_fltregs)(a0)
- ldc1 $f17,(17*8+offes_fltregs)(a0)
- ldc1 $f18,(18*8+offes_fltregs)(a0)
- ldc1 $f19,(19*8+offes_fltregs)(a0)
- ldc1 $f20,(20*8+offes_fltregs)(a0)
- ldc1 $f21,(21*8+offes_fltregs)(a0)
- ldc1 $f22,(22*8+offes_fltregs)(a0)
- ldc1 $f23,(23*8+offes_fltregs)(a0)
- ldc1 $f24,(24*8+offes_fltregs)(a0)
- ldc1 $f25,(25*8+offes_fltregs)(a0)
- ldc1 $f26,(26*8+offes_fltregs)(a0)
- ldc1 $f27,(27*8+offes_fltregs)(a0)
- ldc1 $f28,(28*8+offes_fltregs)(a0)
- ldc1 $f29,(29*8+offes_fltregs)(a0)
- ldc1 $f30,(30*8+offes_fltregs)(a0)
- ldc1 $f31,(31*8+offes_fltregs)(a0)
-
- /* load new pc */
-
- ld itmp3,offes_pc(a0)
-
- /* load a0 */
-
- ld a0,(4*8+offes_intregs)(a0)
-
- /* jump to new code */
-
- jr itmp3
-
- .end asm_replacement_in
+/* asm_abstractmethoderror *****************************************************
-/******************* function asm_initialize_thread_stack **********************
-* *
-* u1* asm_initialize_thread_stack (void *func, u1 *stack); *
-* *
-* initialize a thread stack *
-* *
-*******************************************************************************/
-
- .ent asm_initialize_thread_stack
-
-asm_initialize_thread_stack:
- aaddiu a1,a1,-14*8 /* allocate save area */
- sd zero, 0*8(a1) /* s0 initalize thread area */
- sd zero, 1*8(a1) /* s1 */
- sd zero, 2*8(a1) /* s2 */
- sd zero, 3*8(a1) /* s3 */
- sd zero, 4*8(a1) /* s4 */
- sd zero, 5*8(a1) /* s5 */
- sd zero, 6*8(a1) /* s6 */
- sd zero, 7*8(a1) /* s7 */
- sd zero, 8*8(a1) /* s8 */
- sd zero, 9*8(a1) /* fs0 */
- sd zero,10*8(a1) /* fs1 */
- sd zero,11*8(a1) /* fs2 */
- sd zero,12*8(a1) /* fs3 */
- sd a0, 13*8(a1)
- move v0,a1
- j ra /* return */
-
- .end asm_initialize_thread_stack
-
-
-/******************* function asm_perform_threadswitch *************************
-* *
-* void asm_perform_threadswitch (u1 **from, u1 **to, u1 **stackTop); *
-* *
-* performs a threadswitch *
-* *
-*******************************************************************************/
+ Creates and throws an AbstractMethodError.
- .ent asm_perform_threadswitch
-
-asm_perform_threadswitch:
- aaddiu sp,sp,-14*8 /* allocate new stack */
- sd s0, 0*8(sp) /* save saved registers of old thread */
- sd s1, 1*8(sp)
- sd s2, 2*8(sp)
- sd s3, 3*8(sp)
- sd s4, 4*8(sp)
- sd s5, 5*8(sp)
- sd s6, 6*8(sp)
- sd s7, 7*8(sp)
- sd s8, 8*8(sp)
- sdc1 fs0, 9*8(sp)
- sdc1 fs1,10*8(sp)
- sdc1 fs2,11*8(sp)
- sdc1 fs3,12*8(sp)
- sd ra, 13*8(sp)
- ast sp,0(a0) /* save old stack pointer */
- ast sp,0(a2) /* stackTop = old stack pointer */
- ald sp,0(a1) /* load new stack pointer */
- ld s0, 0*8(sp) /* load saved registers of new thread */
- ld s1, 1*8(sp)
- ld s2, 2*8(sp)
- ld s3, 3*8(sp)
- ld s4, 4*8(sp)
- ld s5, 5*8(sp)
- ld s6, 6*8(sp)
- ld s7, 7*8(sp)
- ld s8, 8*8(sp)
- ldc1 fs0, 9*8(sp)
- ldc1 fs1,10*8(sp)
- ldc1 fs2,11*8(sp)
- ldc1 fs3,12*8(sp)
- ld ra, 13*8(sp)
- aaddiu sp,sp,14*8 /* deallocate new stack */
- move itmp3, ra
- j ra /* return */
-
- .end asm_perform_threadswitch
-
-
-/********************* function asm_switchstackandcall *************************
-* *
-* void asm_switchstackandcall (void *stack, void *func, void **stacktopsave); *
-* *
-* Switches to a new stack, calls a function and switches back. *
-* a0 new stack pointer *
-* a1 function pointer *
-* a2 pointer to variable where stack top should be stored *
-* *
*******************************************************************************/
- .ent asm_switchstackandcall
-
-asm_switchstackandcall:
- aaddiu a0,a0,-16 /* allocate new stack */
- sd ra,0(a0) /* save return address on new stack */
- sd sp,8(a0) /* save old stack pointer on new stack */
- sd sp,0(a2) /* save old stack pointer to variable */
- move sp,a0 /* switch to new stack */
-
- move itmp3,a1
- move a0,a3
- jalr itmp3 /* and call function */
-
- ld ra,0(sp) /* load return address */
- ld sp,8(sp) /* switch to old stack */
-
- j ra /* return */
-
- .end asm_switchstackandcall
-
-
- .ent asm_getclassvalues_atomic
+ .ent asm_abstractmethoderror
-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
+asm_abstractmethoderror:
+ aaddiu sp,sp,-2*8 /* create stackframe */
+ ast ra,0*8(sp) /* save return address */
+ aaddiu a0,sp,2*8 /* pass java sp */
+ move a1,ra /* pass exception address */
+ jal exceptions_asm_new_abstractmethoderror
+ ald ra,0*8(sp) /* restore return address */
+ aaddiu sp,sp,2*8 /* remove stackframe */
- .end asm_getclassvalues_atomic
-
- .data
-
-asm_criticalsections:
-#if defined(USE_THREADS) && defined(NATIVE_THREADS)
- .dword _crit_begin
- .dword _crit_end
- .dword _crit_restart
-#endif
- .dword 0
-
-
- .text
-
- .ent compare_and_swap
-
-compare_and_swap:
-1:
- all v0,0(a0)
- bne v0,a1,2f
- move t0,a2
- asc t0,0(a0)
- beqz t0,1b
-2:
- sync
- j ra
+ move xptr,v0 /* get exception pointer */
+ aaddiu xpc,ra,-4 /* exception address is ra - 4 */
+ b asm_handle_nat_exception
- .end compare_and_swap
+ .end asm_abstractmethoderror
-/* Disable exec-stacks, required for Gentoo ***********************************/
+/* disable exec-stacks ********************************************************/
-#if defined(__GCC__) && defined(__ELF__)
- .section .note.GNU-stack,"",@progbits
+#if defined(__linux__) && defined(__ELF__)
+ .section .note.GNU-stack,"",%progbits
#endif
projects / cacao.git / blobdiff