Reinhard Grafl
Christian Thalinger
- $Id: asmpart.S 963 2004-03-15 07:37:49Z jowenn $
+ $Id: asmpart.S 965 2004-03-17 11:38:26Z twisti $
*/
.globl asm_builtin_new
.globl asm_get_stackTrace
+
/*************************** imported functions *******************************/
.globl jit_compile
#endif
-/*********************** function has_no_x_instr_set ***************************
-* *
-* determines if the byte support instruction set (21164a and higher) *
-* is available. *
-* *
-* Use it on i386 architecture to init the fpu. *
-* *
-*******************************************************************************/
-
-has_no_x_instr_set:
- finit /* intitialize the fpu */
-
- pushl $0x027f /* Round to nearest, 53-bit mode, exceptions masked */
- fldcw (%esp)
- addl $4,%esp
-
- xor %eax,%eax /* result code 0 (not used for i386) */
- ret
-
-
/********************* function asm_calljavafunction ***************************
* *
* This function calls a Java-method (which possibly needs compilation) *
pop %ebx
leave
ret
-
/********************* function asm_calljavafunction ***************************
* method into machine code. *
* *
* C-prototype: *
-* javaobject_header *asm_calljavamethod (methodinfo *m, *
-* void *arg1, void *arg2, void *arg3, void *arg4); *
+* javaobject_header *asm_calljavafunction2(methodinfo *m, *
+* u4 count, u4 size, void *callblock); *
* *
*******************************************************************************/
asm_calljavafunction2:
asm_calljavafunction2double:
asm_calljavafunction2long:
- push %ebp /* save ebp */
-
- mov %esp,%eax /* save stackptr */
- mov 20(%esp),%ebp
-
- push %ebx /* save registers */
- push %esi
- push %edi
-
- sub $32,%esp
-
- mov sizejniblock*3+offjniitem+4(%ebp),%ebx
- mov %ebx,28(%esp)
- mov sizejniblock*3+offjniitem(%ebp),%ebx
- mov %ebx,24(%esp)
-
- mov sizejniblock*2+offjniitem+4(%ebp),%ebx
- mov %ebx,20(%esp)
- mov sizejniblock*2+offjniitem(%ebp),%ebx
- mov %ebx,16(%esp)
-
-
- mov sizejniblock+offjniitem+4(%ebp),%ebx
- mov %ebx,12(%esp)
- mov sizejniblock+offjniitem(%ebp),%ebx
- mov %ebx,8(%esp)
-
- mov offjniitem+4(%ebp),%ebx
- mov %ebx,4(%esp)
- mov offjniitem(%ebp),%ebx
- mov %ebx,0(%esp)
-
- mov %eax,%ebp
- mov 8(%ebp),%eax /* move function pointer to %eax */
-
- lea asm_call_jit_compiler,%edx
- call *%edx /* call JIT compiler */
+ push %ebp
+ mov %esp,%ebp /* save stackptr */
+
+ push %ebx /* save registers */
+ push %esi
+ push %edi
+
+ mov 20(%ebp),%eax /* pointer to arg block */
+ mov 16(%ebp),%ecx /* arg count */
+ test %ecx,%ecx /* maybe we have no args */
+ jle calljava_copydone
+
+ mov %ecx,%edx /* calculate stack size */
+ shl $3,%edx
+ mov %edx,%esi /* save in callee saved register */
+ sub %esi,%esp /* stack frame for arguments */
+ mov %esp,%edi
+
+calljava_copyloop:
+ mov offjniitem(%eax),%edx
+ mov %edx,0(%edi)
+ mov offjniitem+4(%eax),%edx
+ mov %edx,4(%edi)
+
+ sub $1,%ecx /* are there any args left? */
+ test %ecx,%ecx
+ jle calljava_copydone
+
+ add $sizejniblock,%eax /* goto next argument block */
+ add $8,%edi /* increase sp to next argument */
+ jmp calljava_copyloop
+
+calljava_copydone:
+ mov 8(%ebp),%eax /* move function pointer to %eax */
+
+ lea asm_call_jit_compiler,%edx
+ call *%edx /* call JIT compiler */
calljava_return2:
- add $32,%esp
- pop %edi /* restore registers */
- pop %esi
- pop %ebx
- leave
- ret
+ add %esi,%esp /* remove arg stack frame */
+ pop %edi /* restore registers */
+ pop %esi
+ pop %ebx
+ leave
+ ret
calljava_xhandler2:
- push %eax /* pass exception pointer */
- call builtin_throw_exception
- add $4,%esp
-
- add $32,%esp
- pop %edi /* restore registers */
- pop %esi
- pop %ebx
- leave
- ret
+ push %eax /* pass exception pointer */
+ call builtin_throw_exception
+ add $4,%esp
+
+ add %esi,%esp /* remove arg stack frame */
+ pop %edi /* restore registers */
+ pop %esi
+ pop %ebx
+ leave
+ ret
/****************** function asm_call_jit_compiler *****************************
* *
*******************************************************************************/
-
asm_call_jit_compiler:
- push %ebx /* save register */
- push %ebp
-
- mov 8(%esp),%ebp /* get return address (2 push) */
- mov -1(%ebp),%bl /* get function code */
- cmp $0xd1,%bl /* called with `call *REG_ITMP2' (%ecx)? */
- jne L_not_static_special
-
- sub $6,%ebp /* calculate address of immediate */
- jmp L_call_jit_compile
+ push %ebx /* save register */
+ push %ebp
+
+ mov 8(%esp),%ebp /* get return address (2 push) */
+ mov -1(%ebp),%bl /* get function code */
+ cmp $0xd1,%bl /* called with `call *REG_ITMP2' (%ecx)? */
+ jne L_not_static_special
+
+ sub $6,%ebp /* calculate address of immediate */
+ jmp L_call_jit_compile
L_not_static_special:
- cmp $0xd0,%bl /* called with `call *REG_ITMP1' (%eax) */
- jne L_not_virtual_interface
-
- sub $6,%ebp /* calculate address of offset */
- mov (%ebp),%ebp /* get offset */
- add %ecx,%ebp /* add base address to get method address */
- jmp L_call_jit_compile
+ cmp $0xd0,%bl /* called with `call *REG_ITMP1' (%eax) */
+ jne L_not_virtual_interface
+
+ sub $6,%ebp /* calculate address of offset */
+ mov (%ebp),%ebp /* get offset */
+ add %ecx,%ebp /* add base address to get method address */
+ jmp L_call_jit_compile
L_not_virtual_interface: /* a call from asm_calljavafunction */
- xor %ebp,%ebp
+ xor %ebp,%ebp
L_call_jit_compile:
- push %ebp /* save address for method pointer */
+ push %ebp /* save address for method pointer */
- push %eax /* push methodpointer on stack */
- call jit_compile
- add $4,%esp
+ push %eax /* push methodpointer on stack */
+ call jit_compile
+ add $4,%esp
- pop %ebp /* restore address for method pointer */
- test %ebp,%ebp /* is address == 0 (asm_calljavafunction) */
- je L_call_method
-
- mov %eax,(%ebp) /* and now save the new pointer */
+ pop %ebp /* restore address for method pointer */
+ test %ebp,%ebp /* is address == 0 (asm_calljavafunction) */
+ je L_call_method
+
+ mov %eax,(%ebp) /* and now save the new pointer */
L_call_method:
- pop %ebp /* restore registers */
- pop %ebx
-
- jmp *%eax /* ...and now call the new method */
-
+ pop %ebp /* restore registers */
+ pop %ebx
+
+ jmp *%eax /* ...and now call the new method */
/****************** function asm_dumpregistersandcall **************************
push %edi
ex_stack_loop:
+<<<<<<< asmpart.S
+ sub $16,%esp
+ mov %eax,(%esp) /* exception pointer */
+ mov MethodPointer(%edx),%eax /* method pointer */
+ mov %eax,4(%esp)
+ mov %ecx,8(%esp) /* exception pc */
+ movl $1,12(%esp) /* set no unwind flag */
+ call builtin_trace_exception
+ add $16,%esp
+
+ mov -12(%ebp),%esi /* %esi = data segment pointer */
+ mov ExTableSize(%esi),%ecx /* %ecx = exception table size */
+ test %ecx,%ecx /* if empty table skip */
+ je empty_table
+=======
sub $20,%esp
mov %eax,(%esp) /* exception pointer */
mov MethodPointer(%edx),%eax /* method pointer */
mov %eax,4(%esp)
mov %ecx,8(%esp) /* exception pc */
+>>>>>>> 1.13
+<<<<<<< asmpart.S
+ lea ExTableStart(%esi),%edi /* %edi = start of exception table */
+ mov -4(%ebp),%eax /* get xptr */
+=======
movl $0,12(%esp) /* line number */
movl $1,16(%esp) /* set no unwind flag */
lea ExTableStart(%esi),%edi /* %edi = start of exception table*/
mov -4(%ebp),%eax /* get xptr */
+>>>>>>> 1.13
ex_table_loop:
mov -8(%ebp),%edx /* get xpc */
mov (%esp),%eax /* get return address */
sub $12,%eax /* asm_putstatic call code size */
movb $0xeb,(%eax) /* jmp rel8 */
- movl $10,1(%eax) /* 32-bit offset */
+ movb $10,1(%eax) /* 8-bit offset */
ret
-
+
/********************* function asm_builtin_monitorenter ***********************
* *
* Does null check and calls monitorenter or throws an exception *
*******************************************************************************/
asm_builtin_monitorenter:
- cmpl $0,4(%esp)
- je nb_monitorenter /* if (null) throw exception */
- jmp builtin_monitorenter /* else call builtin_monitorenter */
+ cmpl $0,4(%esp)
+ je nb_monitorenter /* if (null) throw exception */
+ jmp builtin_monitorenter /* else call builtin_monitorenter */
nb_monitorenter:
- popl %ecx /* delete return address */
- subl $2,%ecx /* faulting address is return adress - 2 */
- movl proto_java_lang_NullPointerException,%eax
- jmp asm_handle_exception
+ push string_java_lang_NullPointerException
+ call new_exception
+ add $(1*4),%esp
+
+ pop %ecx /* delete return address */
+ sub $2,%ecx /* faulting address is return adress - 2 */
+ jmp asm_handle_exception
/********************* function asm_builtin_monitorexit ************************
ret
nb_monitorexit:
- popl %ecx /* delete return address */
- subl $2,%ecx /* faulting address is return adress - 2 */
- movl proto_java_lang_NullPointerException,%eax
- jmp asm_handle_exception
+ push string_java_lang_NullPointerException
+ call new_exception
+ add $(1*4),%esp
+
+ pop %ecx /* delete return address */
+ sub $2,%ecx /* faulting address is return adress - 2 */
+ jmp asm_handle_exception
/************************ function asm_builtin_ldiv ****************************
*******************************************************************************/
asm_builtin_ldiv:
- mov 12(%esp),%eax
- or 16(%esp),%eax
- test %eax,%eax /* if (null) throw exception */
- je nb_ldiv
+ mov 12(%esp),%eax
+ or 16(%esp),%eax
+ test %eax,%eax /* if (null) throw exception */
+ je nb_ldiv
- jmp builtin_ldiv
+ jmp builtin_ldiv
nb_ldiv:
- pop %ecx /* delete return address */
+ push string_java_lang_ArithmeticException_message
+ push string_java_lang_ArithmeticException
+ call new_exception_message
+ add $(2*4),%esp
+
+ pop %ecx /* delete return address */
sub $2,%ecx /* faulting address is return adress - 2 */
- mov proto_java_lang_ArithmeticException,%eax
jmp asm_handle_exception
*******************************************************************************/
asm_builtin_lrem:
- mov 12(%esp),%eax
- or 16(%esp),%eax
- test %eax,%eax /* if (null) throw exception */
- je nb_lrem
+ mov 12(%esp),%eax
+ or 16(%esp),%eax
+ test %eax,%eax /* if (null) throw exception */
+ je nb_lrem
- jmp builtin_lrem
+ jmp builtin_lrem
nb_lrem:
- pop %ecx /* delete return address */
+ push string_java_lang_ArithmeticException_message
+ push string_java_lang_ArithmeticException
+ call new_exception_message
+ add $(2*4),%esp
+
+ pop %ecx /* delete return address */
sub $2,%ecx /* faulting address is return adress - 2 */
- mov proto_java_lang_ArithmeticException,%eax
jmp asm_handle_exception
ret
-/*********************** function new_builtin_checkcast ************************
-* *
-* Does the cast check and eventually throws an exception *
-* *
-*******************************************************************************/
-
-asm_builtin_checkcast:
- xor %eax,%eax
- mov %eax,(%eax)
- ret
-
-
/******************* function asm_builtin_checkarraycast ***********************
* *
* Does the cast check and eventually throws an exception *
ret
nb_carray_throw:
+ push string_java_lang_ClassCastException
+ call new_exception
+ add $(1*4),%esp
+
add $8,%esp
pop %ecx /* delete return address */
sub $2,%ecx /* faulting address is return adress - 2 */
- mov proto_java_lang_ClassCastException,%eax
jmp asm_handle_exception
*******************************************************************************/
asm_builtin_aastore:
- subl $12,%esp /* build stack frame (3 * 4 bytes) */
-
- movl 16(%esp),%eax /* 12 (frame) + 4 (return) */
- test %eax,%eax /* if null pointer throw exception */
- je nb_aastore_null
-
- movl offarraysize(%eax),%edx /* load size */
- movl 24(%esp),%ecx /* index */
- cmpl %edx,%ecx /* do bound check */
- ja nb_aastore_bound /* if out of bounds throw exception */
-
- shll $2,%ecx /* index * 4 */
- addl %eax,%ecx /* add index * 4 to arrayref */
-
- movl %ecx,8(%esp) /* save store position */
-
- movl 16(%esp),%eax /* 12 (frame) + 4 (return) */
- movl %eax,(%esp)
-
- movl 32(%esp),%eax /* object is second argument */
- movl %eax,4(%esp)
+ sub $12,%esp /* build stack frame (3 * 4 bytes) */
+
+ mov 16(%esp),%eax /* 12 (frame) + 4 (return) */
+ test %eax,%eax /* if null pointer throw exception */
+ je nb_aastore_null
+
+ mov offarraysize(%eax),%edx /* load size */
+ mov 24(%esp),%ecx /* index */
+ cmp %edx,%ecx /* do bound check */
+ jae nb_aastore_bound /* if out of bounds throw exception */
+
+ shl $2,%ecx /* index * 4 */
+ add %eax,%ecx /* add index * 4 to arrayref */
+
+ mov %ecx,8(%esp) /* save store position */
+
+ mov 16(%esp),%eax /* 12 (frame) + 4 (return) */
+ mov %eax,(%esp)
+
+ mov 32(%esp),%eax /* object is second argument */
+ mov %eax,4(%esp)
- call builtin_canstore /* builtin_canstore(arrayref,object) */
+ call builtin_canstore /* builtin_canstore(arrayref,object) */
- test %eax,%eax /* if (false) throw exception */
- je nb_aastore_throw
+ test %eax,%eax /* if (false) throw exception */
+ je nb_aastore_store
- movl 32(%esp),%eax
- movl 8(%esp),%ecx
- movl %eax,offobjarrdata(%ecx)/* store objectptr in array */
+ mov 32(%esp),%eax
+ mov 8(%esp),%ecx
+ mov %eax,offobjarrdata(%ecx)/* store objectptr in array */
- addl $12,%esp
+ add $12,%esp
ret
nb_aastore_null:
- addl $12,%esp
- popl %ecx /* delete return address */
- subl $2,%ecx /* faulting address is return adress - 2 */
- movl proto_java_lang_NullPointerException,%eax
+ push string_java_lang_NullPointerException
+ call new_exception
+ add $(1*4),%esp
+
+ add $12,%esp
+ pop %ecx /* delete return address */
+ sub $2,%ecx /* faulting address is return adress - 2 */
jmp asm_handle_exception
nb_aastore_bound:
- addl $12,%esp
- popl %ecx /* delete return address */
- subl $2,%ecx /* faulting address is return adress - 2 */
- movl proto_java_lang_ArrayIndexOutOfBoundsException,%eax
- jmp asm_handle_exception
+ push %ecx /* itmp2 contains array index */
+ push string_java_lang_ArrayIndexOutOfBoundsException
+ call new_exception_int
+ add $(2*4),%esp
+
+ add $12,%esp
+ pop %ecx /* delete return address */
+ sub $2,%ecx /* faulting address is return adress - 2 */
+ jmp asm_handle_exception
-nb_aastore_throw:
- addl $12,%esp
- popl %ecx /* delete return address */
- subl $2,%ecx /* faulting address is return adress - 2 */
- movl proto_java_lang_ArrayStoreException,%eax
- jmp asm_handle_exception
+nb_aastore_store:
+ push string_java_lang_ArrayStoreException
+ call new_exception
+ add $(1*4),%esp
+
+ add $12,%esp
+ pop %ecx /* delete return address */
+ sub $2,%ecx /* faulting address is return adress - 2 */
+ jmp asm_handle_exception
/******************* function asm_builtin_arrayinstanceof **********************
*******************************************************************************/
asm_builtin_arrayinstanceof:
- subl $8,%esp /* build stack frame (2 * 4 bytes) */
+ sub $8,%esp /* build stack frame (2 * 4 bytes) */
- movl 12(%esp),%eax
- movl %eax,(%esp)
+ mov 12(%esp),%eax
+ mov %eax,(%esp)
- movl 20(%esp),%eax
- movl %eax,4(%esp)
+ mov 20(%esp),%eax
+ mov %eax,4(%esp)
- call builtin_arrayinstanceof
+ call builtin_arrayinstanceof
- addl $8,%esp
+ add $8,%esp
ret
*******************************************************************************/
asm_initialize_thread_stack:
- movl 8(%esp),%eax /* (to)->stackEnd */
- subl $36,%eax /* 4 bytes * 8 regs + 4 bytes func */
-
- xorl %edx,%edx
- movl %edx,0(%eax)
- movl %edx,4(%eax)
- movl %edx,8(%eax)
- movl %edx,12(%eax)
- movl %edx,16(%eax)
- movl %edx,20(%eax)
- movl %edx,24(%eax)
- movl %edx,28(%eax)
-
- movl 4(%esp),%edx /* save (u1*) (func) */
- movl %edx,32(%eax)
+ mov 8(%esp),%eax /* (to)->stackEnd */
+ sub $36,%eax /* 4 bytes * 8 regs + 4 bytes func */
+
+ xor %edx,%edx
+ mov %edx,0(%eax)
+ mov %edx,4(%eax)
+ mov %edx,8(%eax)
+ mov %edx,12(%eax)
+ mov %edx,16(%eax)
+ mov %edx,20(%eax)
+ mov %edx,24(%eax)
+ mov %edx,28(%eax)
+
+ mov 4(%esp),%edx /* save (u1*) (func) */
+ mov %edx,32(%eax)
ret /* return restorepoint in %eax */
*******************************************************************************/
asm_perform_threadswitch:
- subl $36,%esp
-
- movl %eax,0(%esp)
- movl %ecx,4(%esp)
- movl %edx,8(%esp)
- movl %ebx,12(%esp)
- movl %esp,16(%esp)
- movl %ebp,20(%esp)
- movl %esi,24(%esp)
- movl %edi,28(%esp)
-
- movl 36(%esp),%eax /* save current return address */
- movl %eax,32(%esp)
-
- movl 40(%esp),%eax /* first argument **from */
- movl %esp,0(%eax)
-
- movl 48(%esp),%eax /* third argument **stackTop */
- movl %esp,0(%eax)
-
- movl 44(%esp),%eax /* second argument **to */
- movl 0(%eax),%esp /* load new stack pointer */
-
- movl 0(%esp),%eax
- movl 4(%esp),%ecx
- movl 8(%esp),%edx
- movl 12(%esp),%ebx
- /* skip stack pointer */
- movl 20(%esp),%ebp
- movl 24(%esp),%esi
- movl 28(%esp),%edi
-
- addl $32,%esp /* leave return address on stack */
+ sub $36,%esp
+
+ mov %eax,0(%esp)
+ mov %ecx,4(%esp)
+ mov %edx,8(%esp)
+ mov %ebx,12(%esp)
+ mov %esp,16(%esp)
+ mov %ebp,20(%esp)
+ mov %esi,24(%esp)
+ mov %edi,28(%esp)
+
+ mov 36(%esp),%eax /* save current return address */
+ mov %eax,32(%esp)
+
+ mov 40(%esp),%eax /* first argument **from */
+ mov %esp,0(%eax)
+
+ mov 48(%esp),%eax /* third argument **stackTop */
+ mov %esp,0(%eax)
+
+ mov 44(%esp),%eax /* second argument **to */
+ mov 0(%eax),%esp /* load new stack pointer */
+
+ mov 0(%esp),%eax
+ mov 4(%esp),%ecx
+ mov 8(%esp),%edx
+ mov 12(%esp),%ebx
+ /* skip stack pointer */
+ mov 20(%esp),%ebp
+ mov 24(%esp),%esi
+ mov 28(%esp),%edi
+
+ add $32,%esp /* leave return address on stack */
ret
ret
-/********************* function asm_getcallingmethod ***************************
-* *
-* classinfo *asm_getcallingmethod (); *
-* *
-* goes back stack frames to get the calling method *
-* *
-* t2 .. sp *
-* t3 .. ra *
-* t4 .. pv *
-* *
-*******************************************************************************/
-
-asm_getcallingmethod:
- xorl %eax,%eax
-/* movl $0,(%eax) */
- ret
-
Java_java_lang_VMSecurityManager_currentClassLoader:
lea builtin_asm_getclassloader,%eax
push %eax /*store collector function pointer*/
Reinhard Grafl
Christian Thalinger
- $Id: asmpart.S 963 2004-03-15 07:37:49Z jowenn $
+ $Id: asmpart.S 965 2004-03-17 11:38:26Z twisti $
*/
.globl asm_builtin_new
.globl asm_get_stackTrace
+
/*************************** imported functions *******************************/
.globl jit_compile
#endif
-/*********************** function has_no_x_instr_set ***************************
-* *
-* determines if the byte support instruction set (21164a and higher) *
-* is available. *
-* *
-* Use it on i386 architecture to init the fpu. *
-* *
-*******************************************************************************/
-
-has_no_x_instr_set:
- finit /* intitialize the fpu */
-
- pushl $0x027f /* Round to nearest, 53-bit mode, exceptions masked */
- fldcw (%esp)
- addl $4,%esp
-
- xor %eax,%eax /* result code 0 (not used for i386) */
- ret
-
-
/********************* function asm_calljavafunction ***************************
* *
* This function calls a Java-method (which possibly needs compilation) *
pop %ebx
leave
ret
-
/********************* function asm_calljavafunction ***************************
* method into machine code. *
* *
* C-prototype: *
-* javaobject_header *asm_calljavamethod (methodinfo *m, *
-* void *arg1, void *arg2, void *arg3, void *arg4); *
+* javaobject_header *asm_calljavafunction2(methodinfo *m, *
+* u4 count, u4 size, void *callblock); *
* *
*******************************************************************************/
asm_calljavafunction2:
asm_calljavafunction2double:
asm_calljavafunction2long:
- push %ebp /* save ebp */
-
- mov %esp,%eax /* save stackptr */
- mov 20(%esp),%ebp
-
- push %ebx /* save registers */
- push %esi
- push %edi
-
- sub $32,%esp
-
- mov sizejniblock*3+offjniitem+4(%ebp),%ebx
- mov %ebx,28(%esp)
- mov sizejniblock*3+offjniitem(%ebp),%ebx
- mov %ebx,24(%esp)
-
- mov sizejniblock*2+offjniitem+4(%ebp),%ebx
- mov %ebx,20(%esp)
- mov sizejniblock*2+offjniitem(%ebp),%ebx
- mov %ebx,16(%esp)
-
-
- mov sizejniblock+offjniitem+4(%ebp),%ebx
- mov %ebx,12(%esp)
- mov sizejniblock+offjniitem(%ebp),%ebx
- mov %ebx,8(%esp)
-
- mov offjniitem+4(%ebp),%ebx
- mov %ebx,4(%esp)
- mov offjniitem(%ebp),%ebx
- mov %ebx,0(%esp)
-
- mov %eax,%ebp
- mov 8(%ebp),%eax /* move function pointer to %eax */
-
- lea asm_call_jit_compiler,%edx
- call *%edx /* call JIT compiler */
+ push %ebp
+ mov %esp,%ebp /* save stackptr */
+
+ push %ebx /* save registers */
+ push %esi
+ push %edi
+
+ mov 20(%ebp),%eax /* pointer to arg block */
+ mov 16(%ebp),%ecx /* arg count */
+ test %ecx,%ecx /* maybe we have no args */
+ jle calljava_copydone
+
+ mov %ecx,%edx /* calculate stack size */
+ shl $3,%edx
+ mov %edx,%esi /* save in callee saved register */
+ sub %esi,%esp /* stack frame for arguments */
+ mov %esp,%edi
+
+calljava_copyloop:
+ mov offjniitem(%eax),%edx
+ mov %edx,0(%edi)
+ mov offjniitem+4(%eax),%edx
+ mov %edx,4(%edi)
+
+ sub $1,%ecx /* are there any args left? */
+ test %ecx,%ecx
+ jle calljava_copydone
+
+ add $sizejniblock,%eax /* goto next argument block */
+ add $8,%edi /* increase sp to next argument */
+ jmp calljava_copyloop
+
+calljava_copydone:
+ mov 8(%ebp),%eax /* move function pointer to %eax */
+
+ lea asm_call_jit_compiler,%edx
+ call *%edx /* call JIT compiler */
calljava_return2:
- add $32,%esp
- pop %edi /* restore registers */
- pop %esi
- pop %ebx
- leave
- ret
+ add %esi,%esp /* remove arg stack frame */
+ pop %edi /* restore registers */
+ pop %esi
+ pop %ebx
+ leave
+ ret
calljava_xhandler2:
- push %eax /* pass exception pointer */
- call builtin_throw_exception
- add $4,%esp
-
- add $32,%esp
- pop %edi /* restore registers */
- pop %esi
- pop %ebx
- leave
- ret
+ push %eax /* pass exception pointer */
+ call builtin_throw_exception
+ add $4,%esp
+
+ add %esi,%esp /* remove arg stack frame */
+ pop %edi /* restore registers */
+ pop %esi
+ pop %ebx
+ leave
+ ret
/****************** function asm_call_jit_compiler *****************************
* *
*******************************************************************************/
-
asm_call_jit_compiler:
- push %ebx /* save register */
- push %ebp
-
- mov 8(%esp),%ebp /* get return address (2 push) */
- mov -1(%ebp),%bl /* get function code */
- cmp $0xd1,%bl /* called with `call *REG_ITMP2' (%ecx)? */
- jne L_not_static_special
-
- sub $6,%ebp /* calculate address of immediate */
- jmp L_call_jit_compile
+ push %ebx /* save register */
+ push %ebp
+
+ mov 8(%esp),%ebp /* get return address (2 push) */
+ mov -1(%ebp),%bl /* get function code */
+ cmp $0xd1,%bl /* called with `call *REG_ITMP2' (%ecx)? */
+ jne L_not_static_special
+
+ sub $6,%ebp /* calculate address of immediate */
+ jmp L_call_jit_compile
L_not_static_special:
- cmp $0xd0,%bl /* called with `call *REG_ITMP1' (%eax) */
- jne L_not_virtual_interface
-
- sub $6,%ebp /* calculate address of offset */
- mov (%ebp),%ebp /* get offset */
- add %ecx,%ebp /* add base address to get method address */
- jmp L_call_jit_compile
+ cmp $0xd0,%bl /* called with `call *REG_ITMP1' (%eax) */
+ jne L_not_virtual_interface
+
+ sub $6,%ebp /* calculate address of offset */
+ mov (%ebp),%ebp /* get offset */
+ add %ecx,%ebp /* add base address to get method address */
+ jmp L_call_jit_compile
L_not_virtual_interface: /* a call from asm_calljavafunction */
- xor %ebp,%ebp
+ xor %ebp,%ebp
L_call_jit_compile:
- push %ebp /* save address for method pointer */
+ push %ebp /* save address for method pointer */
- push %eax /* push methodpointer on stack */
- call jit_compile
- add $4,%esp
+ push %eax /* push methodpointer on stack */
+ call jit_compile
+ add $4,%esp
- pop %ebp /* restore address for method pointer */
- test %ebp,%ebp /* is address == 0 (asm_calljavafunction) */
- je L_call_method
-
- mov %eax,(%ebp) /* and now save the new pointer */
+ pop %ebp /* restore address for method pointer */
+ test %ebp,%ebp /* is address == 0 (asm_calljavafunction) */
+ je L_call_method
+
+ mov %eax,(%ebp) /* and now save the new pointer */
L_call_method:
- pop %ebp /* restore registers */
- pop %ebx
-
- jmp *%eax /* ...and now call the new method */
-
+ pop %ebp /* restore registers */
+ pop %ebx
+
+ jmp *%eax /* ...and now call the new method */
/****************** function asm_dumpregistersandcall **************************
push %edi
ex_stack_loop:
+<<<<<<< asmpart.S
+ sub $16,%esp
+ mov %eax,(%esp) /* exception pointer */
+ mov MethodPointer(%edx),%eax /* method pointer */
+ mov %eax,4(%esp)
+ mov %ecx,8(%esp) /* exception pc */
+ movl $1,12(%esp) /* set no unwind flag */
+ call builtin_trace_exception
+ add $16,%esp
+
+ mov -12(%ebp),%esi /* %esi = data segment pointer */
+ mov ExTableSize(%esi),%ecx /* %ecx = exception table size */
+ test %ecx,%ecx /* if empty table skip */
+ je empty_table
+=======
sub $20,%esp
mov %eax,(%esp) /* exception pointer */
mov MethodPointer(%edx),%eax /* method pointer */
mov %eax,4(%esp)
mov %ecx,8(%esp) /* exception pc */
+>>>>>>> 1.13
+<<<<<<< asmpart.S
+ lea ExTableStart(%esi),%edi /* %edi = start of exception table */
+ mov -4(%ebp),%eax /* get xptr */
+=======
movl $0,12(%esp) /* line number */
movl $1,16(%esp) /* set no unwind flag */
lea ExTableStart(%esi),%edi /* %edi = start of exception table*/
mov -4(%ebp),%eax /* get xptr */
+>>>>>>> 1.13
ex_table_loop:
mov -8(%ebp),%edx /* get xpc */
mov (%esp),%eax /* get return address */
sub $12,%eax /* asm_putstatic call code size */
movb $0xeb,(%eax) /* jmp rel8 */
- movl $10,1(%eax) /* 32-bit offset */
+ movb $10,1(%eax) /* 8-bit offset */
ret
-
+
/********************* function asm_builtin_monitorenter ***********************
* *
* Does null check and calls monitorenter or throws an exception *
*******************************************************************************/
asm_builtin_monitorenter:
- cmpl $0,4(%esp)
- je nb_monitorenter /* if (null) throw exception */
- jmp builtin_monitorenter /* else call builtin_monitorenter */
+ cmpl $0,4(%esp)
+ je nb_monitorenter /* if (null) throw exception */
+ jmp builtin_monitorenter /* else call builtin_monitorenter */
nb_monitorenter:
- popl %ecx /* delete return address */
- subl $2,%ecx /* faulting address is return adress - 2 */
- movl proto_java_lang_NullPointerException,%eax
- jmp asm_handle_exception
+ push string_java_lang_NullPointerException
+ call new_exception
+ add $(1*4),%esp
+
+ pop %ecx /* delete return address */
+ sub $2,%ecx /* faulting address is return adress - 2 */
+ jmp asm_handle_exception
/********************* function asm_builtin_monitorexit ************************
ret
nb_monitorexit:
- popl %ecx /* delete return address */
- subl $2,%ecx /* faulting address is return adress - 2 */
- movl proto_java_lang_NullPointerException,%eax
- jmp asm_handle_exception
+ push string_java_lang_NullPointerException
+ call new_exception
+ add $(1*4),%esp
+
+ pop %ecx /* delete return address */
+ sub $2,%ecx /* faulting address is return adress - 2 */
+ jmp asm_handle_exception
/************************ function asm_builtin_ldiv ****************************
*******************************************************************************/
asm_builtin_ldiv:
- mov 12(%esp),%eax
- or 16(%esp),%eax
- test %eax,%eax /* if (null) throw exception */
- je nb_ldiv
+ mov 12(%esp),%eax
+ or 16(%esp),%eax
+ test %eax,%eax /* if (null) throw exception */
+ je nb_ldiv
- jmp builtin_ldiv
+ jmp builtin_ldiv
nb_ldiv:
- pop %ecx /* delete return address */
+ push string_java_lang_ArithmeticException_message
+ push string_java_lang_ArithmeticException
+ call new_exception_message
+ add $(2*4),%esp
+
+ pop %ecx /* delete return address */
sub $2,%ecx /* faulting address is return adress - 2 */
- mov proto_java_lang_ArithmeticException,%eax
jmp asm_handle_exception
*******************************************************************************/
asm_builtin_lrem:
- mov 12(%esp),%eax
- or 16(%esp),%eax
- test %eax,%eax /* if (null) throw exception */
- je nb_lrem
+ mov 12(%esp),%eax
+ or 16(%esp),%eax
+ test %eax,%eax /* if (null) throw exception */
+ je nb_lrem
- jmp builtin_lrem
+ jmp builtin_lrem
nb_lrem:
- pop %ecx /* delete return address */
+ push string_java_lang_ArithmeticException_message
+ push string_java_lang_ArithmeticException
+ call new_exception_message
+ add $(2*4),%esp
+
+ pop %ecx /* delete return address */
sub $2,%ecx /* faulting address is return adress - 2 */
- mov proto_java_lang_ArithmeticException,%eax
jmp asm_handle_exception
ret
-/*********************** function new_builtin_checkcast ************************
-* *
-* Does the cast check and eventually throws an exception *
-* *
-*******************************************************************************/
-
-asm_builtin_checkcast:
- xor %eax,%eax
- mov %eax,(%eax)
- ret
-
-
/******************* function asm_builtin_checkarraycast ***********************
* *
* Does the cast check and eventually throws an exception *
ret
nb_carray_throw:
+ push string_java_lang_ClassCastException
+ call new_exception
+ add $(1*4),%esp
+
add $8,%esp
pop %ecx /* delete return address */
sub $2,%ecx /* faulting address is return adress - 2 */
- mov proto_java_lang_ClassCastException,%eax
jmp asm_handle_exception
*******************************************************************************/
asm_builtin_aastore:
- subl $12,%esp /* build stack frame (3 * 4 bytes) */
-
- movl 16(%esp),%eax /* 12 (frame) + 4 (return) */
- test %eax,%eax /* if null pointer throw exception */
- je nb_aastore_null
-
- movl offarraysize(%eax),%edx /* load size */
- movl 24(%esp),%ecx /* index */
- cmpl %edx,%ecx /* do bound check */
- ja nb_aastore_bound /* if out of bounds throw exception */
-
- shll $2,%ecx /* index * 4 */
- addl %eax,%ecx /* add index * 4 to arrayref */
-
- movl %ecx,8(%esp) /* save store position */
-
- movl 16(%esp),%eax /* 12 (frame) + 4 (return) */
- movl %eax,(%esp)
-
- movl 32(%esp),%eax /* object is second argument */
- movl %eax,4(%esp)
+ sub $12,%esp /* build stack frame (3 * 4 bytes) */
+
+ mov 16(%esp),%eax /* 12 (frame) + 4 (return) */
+ test %eax,%eax /* if null pointer throw exception */
+ je nb_aastore_null
+
+ mov offarraysize(%eax),%edx /* load size */
+ mov 24(%esp),%ecx /* index */
+ cmp %edx,%ecx /* do bound check */
+ jae nb_aastore_bound /* if out of bounds throw exception */
+
+ shl $2,%ecx /* index * 4 */
+ add %eax,%ecx /* add index * 4 to arrayref */
+
+ mov %ecx,8(%esp) /* save store position */
+
+ mov 16(%esp),%eax /* 12 (frame) + 4 (return) */
+ mov %eax,(%esp)
+
+ mov 32(%esp),%eax /* object is second argument */
+ mov %eax,4(%esp)
- call builtin_canstore /* builtin_canstore(arrayref,object) */
+ call builtin_canstore /* builtin_canstore(arrayref,object) */
- test %eax,%eax /* if (false) throw exception */
- je nb_aastore_throw
+ test %eax,%eax /* if (false) throw exception */
+ je nb_aastore_store
- movl 32(%esp),%eax
- movl 8(%esp),%ecx
- movl %eax,offobjarrdata(%ecx)/* store objectptr in array */
+ mov 32(%esp),%eax
+ mov 8(%esp),%ecx
+ mov %eax,offobjarrdata(%ecx)/* store objectptr in array */
- addl $12,%esp
+ add $12,%esp
ret
nb_aastore_null:
- addl $12,%esp
- popl %ecx /* delete return address */
- subl $2,%ecx /* faulting address is return adress - 2 */
- movl proto_java_lang_NullPointerException,%eax
+ push string_java_lang_NullPointerException
+ call new_exception
+ add $(1*4),%esp
+
+ add $12,%esp
+ pop %ecx /* delete return address */
+ sub $2,%ecx /* faulting address is return adress - 2 */
jmp asm_handle_exception
nb_aastore_bound:
- addl $12,%esp
- popl %ecx /* delete return address */
- subl $2,%ecx /* faulting address is return adress - 2 */
- movl proto_java_lang_ArrayIndexOutOfBoundsException,%eax
- jmp asm_handle_exception
+ push %ecx /* itmp2 contains array index */
+ push string_java_lang_ArrayIndexOutOfBoundsException
+ call new_exception_int
+ add $(2*4),%esp
+
+ add $12,%esp
+ pop %ecx /* delete return address */
+ sub $2,%ecx /* faulting address is return adress - 2 */
+ jmp asm_handle_exception
-nb_aastore_throw:
- addl $12,%esp
- popl %ecx /* delete return address */
- subl $2,%ecx /* faulting address is return adress - 2 */
- movl proto_java_lang_ArrayStoreException,%eax
- jmp asm_handle_exception
+nb_aastore_store:
+ push string_java_lang_ArrayStoreException
+ call new_exception
+ add $(1*4),%esp
+
+ add $12,%esp
+ pop %ecx /* delete return address */
+ sub $2,%ecx /* faulting address is return adress - 2 */
+ jmp asm_handle_exception
/******************* function asm_builtin_arrayinstanceof **********************
*******************************************************************************/
asm_builtin_arrayinstanceof:
- subl $8,%esp /* build stack frame (2 * 4 bytes) */
+ sub $8,%esp /* build stack frame (2 * 4 bytes) */
- movl 12(%esp),%eax
- movl %eax,(%esp)
+ mov 12(%esp),%eax
+ mov %eax,(%esp)
- movl 20(%esp),%eax
- movl %eax,4(%esp)
+ mov 20(%esp),%eax
+ mov %eax,4(%esp)
- call builtin_arrayinstanceof
+ call builtin_arrayinstanceof
- addl $8,%esp
+ add $8,%esp
ret
*******************************************************************************/
asm_initialize_thread_stack:
- movl 8(%esp),%eax /* (to)->stackEnd */
- subl $36,%eax /* 4 bytes * 8 regs + 4 bytes func */
-
- xorl %edx,%edx
- movl %edx,0(%eax)
- movl %edx,4(%eax)
- movl %edx,8(%eax)
- movl %edx,12(%eax)
- movl %edx,16(%eax)
- movl %edx,20(%eax)
- movl %edx,24(%eax)
- movl %edx,28(%eax)
-
- movl 4(%esp),%edx /* save (u1*) (func) */
- movl %edx,32(%eax)
+ mov 8(%esp),%eax /* (to)->stackEnd */
+ sub $36,%eax /* 4 bytes * 8 regs + 4 bytes func */
+
+ xor %edx,%edx
+ mov %edx,0(%eax)
+ mov %edx,4(%eax)
+ mov %edx,8(%eax)
+ mov %edx,12(%eax)
+ mov %edx,16(%eax)
+ mov %edx,20(%eax)
+ mov %edx,24(%eax)
+ mov %edx,28(%eax)
+
+ mov 4(%esp),%edx /* save (u1*) (func) */
+ mov %edx,32(%eax)
ret /* return restorepoint in %eax */
*******************************************************************************/
asm_perform_threadswitch:
- subl $36,%esp
-
- movl %eax,0(%esp)
- movl %ecx,4(%esp)
- movl %edx,8(%esp)
- movl %ebx,12(%esp)
- movl %esp,16(%esp)
- movl %ebp,20(%esp)
- movl %esi,24(%esp)
- movl %edi,28(%esp)
-
- movl 36(%esp),%eax /* save current return address */
- movl %eax,32(%esp)
-
- movl 40(%esp),%eax /* first argument **from */
- movl %esp,0(%eax)
-
- movl 48(%esp),%eax /* third argument **stackTop */
- movl %esp,0(%eax)
-
- movl 44(%esp),%eax /* second argument **to */
- movl 0(%eax),%esp /* load new stack pointer */
-
- movl 0(%esp),%eax
- movl 4(%esp),%ecx
- movl 8(%esp),%edx
- movl 12(%esp),%ebx
- /* skip stack pointer */
- movl 20(%esp),%ebp
- movl 24(%esp),%esi
- movl 28(%esp),%edi
-
- addl $32,%esp /* leave return address on stack */
+ sub $36,%esp
+
+ mov %eax,0(%esp)
+ mov %ecx,4(%esp)
+ mov %edx,8(%esp)
+ mov %ebx,12(%esp)
+ mov %esp,16(%esp)
+ mov %ebp,20(%esp)
+ mov %esi,24(%esp)
+ mov %edi,28(%esp)
+
+ mov 36(%esp),%eax /* save current return address */
+ mov %eax,32(%esp)
+
+ mov 40(%esp),%eax /* first argument **from */
+ mov %esp,0(%eax)
+
+ mov 48(%esp),%eax /* third argument **stackTop */
+ mov %esp,0(%eax)
+
+ mov 44(%esp),%eax /* second argument **to */
+ mov 0(%eax),%esp /* load new stack pointer */
+
+ mov 0(%esp),%eax
+ mov 4(%esp),%ecx
+ mov 8(%esp),%edx
+ mov 12(%esp),%ebx
+ /* skip stack pointer */
+ mov 20(%esp),%ebp
+ mov 24(%esp),%esi
+ mov 28(%esp),%edi
+
+ add $32,%esp /* leave return address on stack */
ret
ret
-/********************* function asm_getcallingmethod ***************************
-* *
-* classinfo *asm_getcallingmethod (); *
-* *
-* goes back stack frames to get the calling method *
-* *
-* t2 .. sp *
-* t3 .. ra *
-* t4 .. pv *
-* *
-*******************************************************************************/
-
-asm_getcallingmethod:
- xorl %eax,%eax
-/* movl $0,(%eax) */
- ret
-
Java_java_lang_VMSecurityManager_currentClassLoader:
lea builtin_asm_getclassloader,%eax
push %eax /*store collector function pointer*/
projects / cacao.git / commitdiff