Reinhard Grafl
Christian Thalinger
- $Id: asmpart.S 2360 2005-04-24 13:07:57Z jowenn $
+ $Id: asmpart.S 2390 2005-04-26 19:48:02Z twisti $
*/
.globl asm_handle_nat_exception
.globl asm_wrapper_patcher
- .globl asm_wrapper_patcher_builtin_new
-
- .globl asm_wrapper_patcher_builtin_newarray
- .globl asm_wrapper_patcher_builtin_multianewarray
- .globl asm_wrapper_patcher_builtin_checkarraycast
- .globl asm_wrapper_patcher_builtin_arrayinstanceof
.globl asm_builtin_checkarraycast
.globl asm_builtin_aastore
-#if defined(USE_THREADS)
- .globl asm_builtin_monitorenter
- .globl asm_builtin_monitorexit
-#endif
-
.globl asm_builtin_f2i
.globl asm_builtin_f2l
.globl asm_builtin_d2i
.globl asm_prepare_native_stackinfo
.globl asm_remove_native_stackinfo
- .globl asm_throw_and_handle_exception
- .globl asm_throw_and_handle_hardware_arithmetic_exception
+ .globl asm_throw_and_handle_exception
+ .globl asm_throw_and_handle_hardware_arithmetic_exception
+
/********************* function asm_calljavafunction ***************************
* *
.long 0
.quad 0 /* line number table start */
.quad 0 /* line number table size */
- .long 0
+ .long 0
.long 0 /* fltsave */
.long 0 /* intsave */
.long 0 /* isleaf */
*******************************************************************************/
asm_wrapper_patcher:
- sub $(18*8),%rsp /* stack frame (16-byte aligned) */
+ sub $(18*8),%rsp /* stack frame (16-byte aligned) */
- SAVE_ARGUMENT_REGISTERS
- SAVE_TEMPORARY_REGISTERS
+ SAVE_ARGUMENT_REGISTERS
+ SAVE_TEMPORARY_REGISTERS
- mov itmp1,15*8(%rsp) /* save itmp1 and itmp2 */
- mov itmp2,16*8(%rsp) /* can be used by some instructions */
+ mov itmp1,15*8(%rsp) /* save itmp1 and itmp2 */
+ mov itmp2,16*8(%rsp) /* can be used by some instructions */
- mov %rsp,a0 /* pass stack pointer */
- add $(19*8),a0 /* skip patcher function pointer */
- mov 18*8(%rsp),itmp3 /* get function pointer */
- call *itmp3 /* call the patcher function */
- mov v0,itmp3 /* save return value */
+ mov %rsp,a0 /* pass stack pointer */
+ add $(19*8),a0 /* skip patcher function pointer */
+ mov 18*8(%rsp),itmp3 /* get function pointer */
+ call *itmp3 /* call the patcher function */
+ mov v0,itmp3 /* save return value */
- RESTORE_ARGUMENT_REGISTERS
- RESTORE_TEMPORARY_REGISTERS
+ RESTORE_ARGUMENT_REGISTERS
+ RESTORE_TEMPORARY_REGISTERS
- mov 15*8(%rsp),itmp1 /* restore itmp1 and itmp2 */
- mov 16*8(%rsp),itmp2 /* can be used by some instructions */
+ mov 15*8(%rsp),itmp1 /* restore itmp1 and itmp2 */
+ mov 16*8(%rsp),itmp2 /* can be used by some instructions */
- add $((3+18)*8),%rsp /* remove stack frame, keep ra */
+ add $((3+18)*8),%rsp /* remove stack frame, keep ra */
- test itmp3,itmp3 /* exception thrown? */
- jz L_asm_wrapper_patcher_exception
- ret /* call new patched code */
+ test itmp3,itmp3 /* exception thrown? */
+ jz L_asm_wrapper_patcher_exception
+ ret /* call new patched code */
L_asm_wrapper_patcher_exception:
- /*stack bottom is xpc and it is directly below the last java stackframe*/
- push $0
- push $0
+ /*stack bottom is xpc and it is directly below the last java stackframe*/
+ push $0
+ push $0
push $0 /*padding*/
- call asm_prepare_native_stackinfo /* be aware of the stack effect and calling convention explained above*/
+ call asm_prepare_native_stackinfo /* be aware of the stack effect and calling convention explained above*/
#if defined(USE_THREADS) && defined(NATIVE_THREADS)
- call builtin_asm_get_exceptionptrptr
- mov v0,itmp2
+ call builtin_asm_get_exceptionptrptr
+ mov v0,itmp2
#else
- lea _exceptionptr,itmp2
+ lea _exceptionptr,itmp2
#endif
- mov (itmp2),a0 /* get the exception pointer */
- movl $0,(itmp2) /* clear exception pointer */
+ mov (itmp2),a0 /* get the exception pointer */
+ movl $0,(itmp2) /* clear exception pointer */
call helper_fillin_stacktrace
mov v0,xptr
- call asm_remove_native_stackinfo /* be aware of the stack effect and calling convention explained above*/
-
- pop xpc
- pop xpc /* get and remove return address */
- jmp asm_handle_exception
-
-
-/* asm_wrapper_patcher_builtin_new *********************************************
-
- XXX
-
- Arguments:
- a0 contains the class reference
-
-*******************************************************************************/
-
-asm_wrapper_patcher_builtin_new:
- sub $(1*8),%rsp /* stack frame (16-byte aligned) */
- mov %rsp,a1 /* pass stack pointer */
- add $(1*8),a1
- call patcher_builtin_new /* call the helper function */
- add $(1*8),%rsp /* remove stack frame */
- test v0,v0 /* exception thrown? */
- jz L_asm_wrapper_patcher_exception
- ret /* call new patched code */
-
-
-/* asm_wrapper_patcher_builtin_* ***********************************************
-
- XXX
-
- Arguments:
- a1 contains the class reference
-
-*******************************************************************************/
-
-asm_wrapper_patcher_builtin_newarray:
- lea patcher_builtin_newarray,itmp1
- jmp L_asm_wrapper_patcher_builtin_main
-
-asm_wrapper_patcher_builtin_multianewarray:
- lea patcher_builtin_multianewarray,itmp1
- jmp L_asm_wrapper_patcher_builtin_main
-
-asm_wrapper_patcher_builtin_checkarraycast:
- lea patcher_builtin_checkarraycast,itmp1
- jmp L_asm_wrapper_patcher_builtin_main
-
-asm_wrapper_patcher_builtin_arrayinstanceof:
- lea patcher_builtin_arrayinstanceof,itmp1
-
-L_asm_wrapper_patcher_builtin_main:
- sub $(1*8),%rsp /* stack frame (16-byte aligned) */
- mov a0,0*8(%rsp) /* save argument */
- mov %rsp,a0 /* pass stack pointer */
- add $(1*8),a0
- call *itmp1 /* call the patcher function */
- mov 0*8(%rsp),a0 /* restore argument */
- add $(1*8),%rsp /* remove stack frame */
- test v0,v0 /* exception thrown? */
- jz L_asm_wrapper_patcher_exception
- ret /* call new patched code */
-
-
-
-
-/********************* function asm_builtin_monitorenter ***********************
-* *
-* Does null check and calls monitorenter or throws an exception *
-* *
-*******************************************************************************/
-
-#if defined(USE_THREADS)
-asm_builtin_monitorenter:
- test %rdi,%rdi
- je nb_monitorenter /* if (null) throw exception */
- jmp builtin_monitorenter /* else call builtin_monitorenter */
-
-nb_monitorenter:
- /*call new_nullpointerexception*/
- pop xpc /* delete return address */
- sub $3,xpc /* faulting address is ra - 3 */
- mov string_java_lang_NullPointerException,xptr
- jmp asm_throw_and_handle_exception
-#endif
-
-
-/********************* function asm_builtin_monitorexit ************************
-* *
-* Does null check and calls monitorexit or throws an exception *
-* *
-*******************************************************************************/
-
-#if defined(USE_THREADS)
-asm_builtin_monitorexit:
- test %rdi,%rdi
- je nb_monitorexit /* if (null) throw exception */
- jmp builtin_monitorexit /* else call builtin_monitorenter */
+ call asm_remove_native_stackinfo /* be aware of the stack effect and calling convention explained above*/
+ add $8,%rsp
-nb_monitorexit:
- /*call new_nullpointerexception*/
- pop xpc /* delete return address */
- sub $3,xpc /* faulting address is ra - 3 */
- mov string_java_lang_NullPointerException,xptr
- jmp asm_throw_and_handle_exception
-#endif
+ pop xpc /* get and remove return address */
+ jmp asm_handle_exception
-/********************* function asm_builtin_x2x ********************************
+/* asm_builtin_x2x *************************************************************
* *
* Wrapper functions for float to int corner cases *
* *
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