/* src/vm/jit/powerpc/asmpart.S - Java-C interface functions for PowerPC 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 This file is part of CACAO. This program is free software.text; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. Contact: cacao@cacaojvm.org Authors: Andreas Krall Reinhard Grafl Stefan Ring Changes: Christian Thalinger $Id: asmpart.S 4357 2006-01-22 23:33:38Z twisti $ */ #include "config.h" #include "md-abi.h" #include "md-asm.h" #include "vm/jit/abi.h" #include "vm/jit/methodheader.h" #include "vm/jit/powerpc/offsets.h" .text .align 2 .globl asm_calljavafunction .globl asm_calljavafunction_int .globl asm_calljavafunction2 .globl asm_calljavafunction2int .globl asm_calljavafunction2long .globl asm_calljavafunction2float .globl asm_calljavafunction2double .globl asm_call_jit_compiler .globl asm_handle_nat_exception .globl asm_handle_exception .globl asm_wrapper_patcher .globl asm_cacheflush .globl asm_initialize_thread_stack .globl asm_perform_threadswitch .globl asm_switchstackandcall .globl asm_criticalsections .globl asm_getclassvalues_atomic /********************* function asm_calljavafunction *************************** * * * This function calls a Java-method (which possibly needs compilation) * * with up to 4 address parameters. * * * * This functions calls the JIT-compiler which eventually translates the * * method into machine code. * * * * C-prototype: * * javaobject_header *asm_calljavamethod (methodinfo *m, * * void *arg1, void *arg2, void *arg3, void *arg4); * * * *******************************************************************************/ .align 2 .long 0 /* catch type all */ .long calljava_xhandler /* handler pc */ .long calljava_xhandler /* end pc */ .long asm_calljavafunction /* start pc */ .long 1 /* extable size */ .long 0 /* line number table start */ .long 0 /* line number table size */ .long 0 /* fltsave */ .long 0 /* intsave */ .long 0 /* isleaf */ .long 0 /* IsSync */ .long 0 /* frame size */ .long 0 /* method pointer (pointer to name) */ asm_calljavafunction: asm_calljavafunction_int: mflr r0 stw r0,LA_LR_OFFSET(r1) stwu r1,-40*4(r1) #if defined(__DARWIN__) stw itmp1,10*4(sp) /* register r11 is callee saved */ #endif stw pv,11*4(sp) /* save PV register */ stw itmp3,12*4(sp) /* registers r14-r31 are callee saved */ stfd ftmp1,14*4(sp) /* registers f14-f31 are callee saved */ stfd ftmp2,16*4(sp) #if defined(__DARWIN__) stw t1,18*4(r1) stw t2,19*4(r1) stw t3,20*4(r1) stw t4,21*4(r1) stw t5,22*4(r1) stw t6,23*4(r1) stw t7,24*4(r1) stfd ft0,26*4(r1) stfd ft1,28*4(r1) stfd ft2,30*4(r1) stfd ft3,32*4(r1) stfd ft4,34*4(r1) stfd ft5,36*4(r1) #else SAVE_TEMPORARY_REGISTERS(18) /* the offset has to be even */ #endif stw a0,36(r1) addi itmp1,r1,36 mr a0,a1 mr a1,a2 mr a2,a3 mr a3,a4 #if defined(__DARWIN__) lis mptr,ha16(asm_call_jit_compiler) addi mptr,mptr,lo16(asm_call_jit_compiler) #else lis mptr,asm_call_jit_compiler@ha addi mptr,mptr,asm_call_jit_compiler@l #endif stw mptr,32(r1) addi mptr,r1,28 lwz pv,4(mptr) mtctr pv bctrl 1: mflr itmp1 #if defined(__DARWIN__) addi pv,itmp1,lo16(asm_calljavafunction-1b) #else addi pv,itmp1,(asm_calljavafunction-1b)@l #endif L_asm_calljavafunction_return: #if defined(__DARWIN__) lwz itmp1,10*4(sp) /* register r11 is callee saved */ #endif lwz pv,11*4(sp) /* save PV register */ lwz itmp3,12*4(sp) lfd ftmp1,14*4(sp) /* registers f14-f31 are callee saved */ lfd ftmp2,16*4(sp) #if defined(__DARWIN__) lwz t1,18*4(r1) lwz t2,19*4(r1) lwz t3,20*4(r1) lwz t4,21*4(r1) lwz t5,22*4(r1) lwz t6,23*4(r1) lwz t7,24*4(r1) lfd ft0,26*4(r1) lfd ft1,28*4(r1) lfd ft2,30*4(r1) lfd ft3,32*4(r1) lfd ft4,34*4(r1) lfd ft5,36*4(r1) #else RESTORE_TEMPORARY_REGISTERS(18) /* the offset has to be even */ #endif lwz r0,40*4+LA_LR_OFFSET(r1) mtlr r0 addi r1,r1,40*4 blr calljava_xhandler: mr a0,itmp1 bl builtin_throw_exception li v0,0 /* return NULL */ b L_asm_calljavafunction_return .align 2 .long 0 /* catch type all */ .long calljava_xhandler2 /* handler pc */ .long calljava_xhandler2 /* end pc */ .long asm_calljavafunction2 /* start pc */ .long 1 /* extable size */ .long 0 /* line number table start */ .long 0 /* line number table size */ .long 0 /* fltsave */ .long 0 /* intsave */ .long 0 /* isleaf */ .long 0 /* IsSync */ .long 0 /* frame size */ .long 0 /* method pointer (pointer to name) */ asm_calljavafunction2: asm_calljavafunction2int: asm_calljavafunction2long: asm_calljavafunction2float: asm_calljavafunction2double: mflr r0 stw r0,LA_LR_OFFSET(r1) stwu r1,-40*4(r1) #if defined(__DARWIN__) stw itmp1,10*4(sp) /* register r11 is callee saved */ #endif stw pv,11*4(sp) /* save PV register */ stw itmp3,12*4(sp) /* registers r14-r31 are callee saved */ stfd ftmp1,14*4(sp) /* registers f14-f31 are callee saved */ stfd ftmp2,16*4(sp) #if defined(__DARWIN__) stw t1,18*4(r1) stw t2,19*4(r1) stw t3,20*4(r1) stw t4,21*4(r1) stw t5,22*4(r1) stw t6,23*4(r1) stw t7,24*4(r1) stfd ft0,26*4(r1) stfd ft1,28*4(r1) stfd ft2,30*4(r1) stfd ft3,32*4(r1) stfd ft4,34*4(r1) stfd ft5,36*4(r1) #else SAVE_TEMPORARY_REGISTERS(18) /* the offset has to be even */ #endif stw r3,36(r1) /* save method pointer for compiler */ mr itmp1,r6 /* pointer to arg block */ mr itmp2,r4 /* arg count */ addi itmp1,itmp1,-sizejniblock /* initialize pointer (smaller code) */ addi itmp2,itmp2,1 /* initialize argument count */ li r17,0 /* initialize integer argument counter */ li r18,0 /* initialize float argument counter */ L_register_copy: addi itmp1,itmp1,sizejniblock /* goto next argument block */ addi itmp2,itmp2,-1 /* argument count - 1 */ mr. itmp2,itmp2 beq L_register_copy_done lwz itmp3,offjniitemtype+4(itmp1) andi. r0,itmp3,0x0002 /* is this a float/double type? */ bne L_register_handle_float cmpwi r17,INT_ARG_CNT /* are we out of integer argument */ beq L_register_copy /* registers? yes, next loop */ andi. r0,itmp3,0x0001 /* is this a long type? */ bne L_register_handle_long L_register_handle_int: #if defined(__DARWIN__) lis itmp3,ha16(jumptable_int) addi itmp3,itmp3,lo16(jumptable_int) #else lis itmp3,jumptable_int@ha addi itmp3,itmp3,jumptable_int@l #endif slwi r19,r17,2 /* multiple of 4-bytes */ add itmp3,itmp3,r19 /* calculate address of jumptable */ lwz itmp3,0(itmp3) /* load function address */ addi r17,r17,1 /* integer argument counter + 1 */ mtctr itmp3 bctr L_register_handle_long: #if defined(__DARWIN__) lis itmp3,ha16(jumptable_long) addi itmp3,itmp3,lo16(jumptable_long) #else lis itmp3,jumptable_long@ha addi itmp3,itmp3,jumptable_long@l #endif addi r19,r17,1 /* align to even numbers */ srwi r19,r19,1 slwi r19,r19,1 slwi r19,r19,2 /* multiple of 4-bytes */ add itmp3,itmp3,r19 /* calculate address of jumptable */ lwz itmp3,0(itmp3) /* load function address */ addi r17,r17,1 /* integer argument counter + 1 */ mtctr itmp3 bctr L_register_handle_float: L_register_copy_done: L_stack_copy_done: addi itmp1,r1,36 #if defined(__DARWIN__) lis mptr,ha16(asm_call_jit_compiler) addi mptr,mptr,lo16(asm_call_jit_compiler) #else lis mptr,asm_call_jit_compiler@ha addi mptr,mptr,asm_call_jit_compiler@l #endif stw mptr,32(r1) addi mptr,r1,28 lwz pv,4(mptr) mtctr pv bctrl 1: mflr itmp1 #if defined(__DARWIN__) addi pv,itmp1,lo16(asm_calljavafunction2-1b) #else addi pv,itmp1,(asm_calljavafunction2-1b)@l #endif L_asm_calljavafunction2_return: #if defined(__DARWIN__) lwz itmp1,10*4(sp) /* register r11 is callee saved */ #endif lwz pv,11*4(sp) /* save PV register */ lwz itmp3,12*4(sp) lfd ftmp1,14*4(sp) /* registers f14-f31 are callee saved */ lfd ftmp2,16*4(sp) #if defined(__DARWIN__) lwz t1,18*4(r1) lwz t2,19*4(r1) lwz t3,20*4(r1) lwz t4,21*4(r1) lwz t5,22*4(r1) lwz t6,23*4(r1) lwz t7,24*4(r1) lfd ft0,26*4(r1) lfd ft1,28*4(r1) lfd ft2,30*4(r1) lfd ft3,32*4(r1) lfd ft4,34*4(r1) lfd ft5,36*4(r1) #else RESTORE_TEMPORARY_REGISTERS(18) /* the offset has to be even */ #endif lwz r0,40*4+LA_LR_OFFSET(r1) mtlr r0 addi r1,r1,40*4 blr calljava_xhandler2: mr r3,itmp1 bl builtin_throw_exception li v0,0 /* return NULL */ b L_asm_calljavafunction2_return jumptable_int: .long L_handle_a0 .long L_handle_a1 .long L_handle_a2 .long L_handle_a3 .long L_handle_a4 .long L_handle_a5 .long L_handle_a6 .long L_handle_a7 L_handle_a0: lwz a0,offjniitem+4(itmp1) b L_register_copy L_handle_a1: lwz a1,offjniitem+4(itmp1) b L_register_copy L_handle_a2: lwz a2,offjniitem+4(itmp1) b L_register_copy L_handle_a3: lwz a3,offjniitem+4(itmp1) b L_register_copy L_handle_a4: lwz a4,offjniitem+4(itmp1) b L_register_copy L_handle_a5: lwz a5,offjniitem+4(itmp1) b L_register_copy L_handle_a6: lwz a6,offjniitem+4(itmp1) b L_register_copy L_handle_a7: lwz a7,offjniitem+4(itmp1) b L_register_copy jumptable_long: #if defined(__DARWIN__) #else /* we have two entries here, so we get the even argument register alignment for linux */ .long L_handle_a0_a1 .long 0 .long L_handle_a2_a3 .long 0 .long L_handle_a4_a5 .long 0 .long L_handle_a6_a7 .long 0 #endif L_handle_a0_a1: lwz a0,offjniitem+0(itmp1) lwz a1,offjniitem+4(itmp1) b L_register_copy L_handle_a2_a3: lwz a2,offjniitem+0(itmp1) lwz a3,offjniitem+4(itmp1) b L_register_copy L_handle_a4_a5: lwz a4,offjniitem+0(itmp1) lwz a5,offjniitem+4(itmp1) b L_register_copy L_handle_a6_a7: lwz a6,offjniitem+0(itmp1) lwz a7,offjniitem+4(itmp1) b L_register_copy /* asm_call_jit_compiler ******************************************************* Invokes the compiler for untranslated JavaVM methods. *******************************************************************************/ asm_call_jit_compiler: mflr r0 stw r0,LA_LR_OFFSET(r1) /* save return address */ stwu r1,-((LA_SIZE + 5*4 + INT_ARG_CNT*4 + FLT_ARG_CNT*8 + 3*4)+sizestackframeinfo)(r1) stw itmp1,(LA_SIZE + 5*4 + INT_ARG_CNT*4 + FLT_ARG_CNT*8 + 1*4)(r1) mr itmp1,r0 /* save return address to other reg. */ lwz itmp3,-12(itmp1) srwi itmp3,itmp3,16 andi. itmp3,itmp3,31 cmpwi itmp3,mptrn beq noregchange lwz itmp3,4(itmp1) extsh itmp3,itmp3 add mptr,itmp3,itmp1 lwz itmp3,8(itmp1) srwi itmp3,itmp3,16 cmpwi itmp3,0x3dad bne noregchange lwz itmp3,8(itmp1) slwi itmp3,itmp3,16 add mptr,mptr,itmp3 noregchange: stw mptr,(LA_SIZE + 5*4 + INT_ARG_CNT*4 + FLT_ARG_CNT*8 + 2*4)(r1) #if defined(__DARWIN__) stw a0,(LA_WORD_SIZE+5+0)*4(r1) stw a1,(LA_WORD_SIZE+5+1)*4(r1) stw a2,(LA_WORD_SIZE+5+2)*4(r1) stw a3,(LA_WORD_SIZE+5+3)*4(r1) stw a4,(LA_WORD_SIZE+5+4)*4(r1) stw a5,(LA_WORD_SIZE+5+5)*4(r1) stw a6,(LA_WORD_SIZE+5+6)*4(r1) stw a7,(LA_WORD_SIZE+5+7)*4(r1) stfd fa0,(LA_WORD_SIZE+5+8)*4(r1) stfd fa1,(LA_WORD_SIZE+5+10)*4(r1) stfd fa2,(LA_WORD_SIZE+5+12)*4(r1) stfd fa3,(LA_WORD_SIZE+5+14)*4(r1) stfd fa4,(LA_WORD_SIZE+5+16)*4(r1) stfd fa5,(LA_WORD_SIZE+5+18)*4(r1) stfd fa6,(LA_WORD_SIZE+5+20)*4(r1) stfd fa7,(LA_WORD_SIZE+5+22)*4(r1) stfd fa8,(LA_WORD_SIZE+5+24)*4(r1) stfd fa9,(LA_WORD_SIZE+5+26)*4(r1) stfd fa10,(LA_WORD_SIZE+5+28)*4(r1) stfd fa11,(LA_WORD_SIZE+5+30)*4(r1) stfd fa12,(LA_WORD_SIZE+5+32)*4(r1) #else SAVE_ARGUMENT_REGISTERS(LA_WORD_SIZE+1) #endif addi a0,sp,(LA_SIZE + 5*4 + INT_ARG_CNT*4 + FLT_ARG_CNT*8 + 3*4) li a1,0 /* we don't have pv handy */ addi a2,sp,(LA_SIZE + 5*4 + INT_ARG_CNT*4 + FLT_ARG_CNT*8 + 3*4)+sizestackframeinfo lwz a3,(LA_SIZE + 5*4 + INT_ARG_CNT*4 + FLT_ARG_CNT*8 + 3*4)+sizestackframeinfo+LA_LR_OFFSET(sp) mr a4,a3 /* xpc is equal to ra */ bl stacktrace_create_extern_stackframeinfo lwz itmp1,(LA_SIZE + 5*4 + INT_ARG_CNT*4 + FLT_ARG_CNT*8 + 1*4)(r1) lwz a0,0(itmp1) bl jit_compile /* compile the Java method */ mr pv,r3 /* move address to pv register */ addi a0,sp,(LA_SIZE + 5*4 + INT_ARG_CNT*4 + FLT_ARG_CNT*8 + 3*4) bl stacktrace_remove_stackframeinfo #if defined(__DARWIN__) lwz a0,(LA_WORD_SIZE+5+0)*4(r1) lwz a1,(LA_WORD_SIZE+5+1)*4(r1) lwz a2,(LA_WORD_SIZE+5+2)*4(r1) lwz a3,(LA_WORD_SIZE+5+3)*4(r1) lwz a4,(LA_WORD_SIZE+5+4)*4(r1) lwz a5,(LA_WORD_SIZE+5+5)*4(r1) lwz a6,(LA_WORD_SIZE+5+6)*4(r1) lwz a7,(LA_WORD_SIZE+5+7)*4(r1) lfd fa0,(LA_WORD_SIZE+5+8)*4(r1) lfd fa1,(LA_WORD_SIZE+5+10)*4(r1) lfd fa2,(LA_WORD_SIZE+5+12)*4(r1) lfd fa3,(LA_WORD_SIZE+5+14)*4(r1) lfd fa4,(LA_WORD_SIZE+5+16)*4(r1) lfd fa5,(LA_WORD_SIZE+5+18)*4(r1) lfd fa6,(LA_WORD_SIZE+5+20)*4(r1) lfd fa7,(LA_WORD_SIZE+5+22)*4(r1) lfd fa8,(LA_WORD_SIZE+5+24)*4(r1) lfd fa9,(LA_WORD_SIZE+5+26)*4(r1) lfd fa10,(LA_WORD_SIZE+5+28)*4(r1) lfd fa11,(LA_WORD_SIZE+5+30)*4(r1) lfd fa12,(LA_WORD_SIZE+5+32)*4(r1) #else RESTORE_ARGUMENT_REGISTERS(LA_WORD_SIZE+1) #endif lwz mptr,(LA_SIZE + 5*4 + INT_ARG_CNT*4 + FLT_ARG_CNT*8 + 2*4)(r1) lwz itmp1,(LA_SIZE + 5*4 + INT_ARG_CNT*4 + FLT_ARG_CNT*8 + 3*4)+sizestackframeinfo+LA_LR_OFFSET(r1) mtlr itmp1 addi r1,r1,(LA_SIZE + 5*4 + INT_ARG_CNT*4 + FLT_ARG_CNT*8 + 3*4)+sizestackframeinfo mr. pv,pv /* test for exception */ beq L_asm_call_jit_compiler_exception lwz itmp3,-12(itmp1) extsh itmp3,itmp3 add mptr,mptr,itmp3 stw pv,0(mptr) /* store method address */ mtctr pv /* move method address to control reg */ bctr /* and call the Java method */ L_asm_call_jit_compiler_exception: #if defined(USE_THREADS) && defined(NATIVE_THREADS) mflr r0 stw r0,LA_LR_OFFSET(sp) stwu sp,-LA_SIZE_ALIGNED(sp) /* preserve linkage area */ bl builtin_asm_get_exceptionptrptr lwz r0,LA_SIZE_ALIGNED+LA_LR_OFFSET(sp) mtlr r0 addi sp,sp,LA_SIZE_ALIGNED #else # if defined(__DARWIN__) lwz v0,lo16(_no_threads_exceptionptr-0b)(pv) # else lis v0,_no_threads_exceptionptr@ha addi v0,v0,_no_threads_exceptionptr@l # endif #endif lwz xptr,0(v0) /* get the exception pointer */ li itmp3,0 stw itmp3,0(v0) /* clear the exception pointer */ mflr xpc addi xpc,xpc,-4 b asm_handle_nat_exception /********************* function asm_handle_exception *************************** * * * This function handles an exception. It does not use the usual calling * * conventions. The exception pointer is passed in REG_ITMP1 and the * * pc from the exception raising position is passed in REG_ITMP2. It searches * * the local exception table for a handler. If no one is found, it unwinds * * stacks and continues searching the callers. * * * * void asm_handle_exception (exceptionptr, exceptionpc); * * * *******************************************************************************/ asm_handle_nat_exception: mflr r9 lwz itmp3,4(r9) extsh itmp3,itmp3 add pv,itmp3,r9 lwz itmp3,8(r9) srwi itmp3,itmp3,16 cmpwi itmp3,0x3dad bne asm_handle_exception lwz itmp3,8(r9) slwi itmp3,itmp3,16 add pv,pv,itmp3 asm_handle_exception: addi sp,sp,-(ARG_CNT+TMP_CNT)*8 /* create maybe-leaf stackframe */ #if defined(__DARWIN__) #else SAVE_ARGUMENT_REGISTERS(0) /* we save arg and temp registers in */ SAVE_TEMPORARY_REGISTERS(ARG_CNT) /* case this is a leaf method */ #endif li a3,(ARG_CNT+TMP_CNT)*8 /* prepare a3 for handle_exception */ li a4,1 /* set maybe-leaf flag */ L_asm_handle_exception_stack_loop: addi sp,sp,-(LA_WORD_SIZE+4+5)*4 /* allocate stack */ stw xptr,LA_SIZE+4*4(sp) /* save exception pointer */ stw xpc,LA_SIZE+5*4(sp) /* save exception pc */ stw pv,LA_SIZE+6*4(sp) /* save data segment pointer */ mflr r0 /* save return address */ stw r0,LA_SIZE+5*4(sp) add a3,a3,sp /* calculate Java sp into a3... */ addi a3,a3,(LA_WORD_SIZE+4+5)*4 stw a4,LA_SIZE+8*4(sp) /* save maybe-leaf flag */ mr a0,xptr /* pass exception pointer */ mr a1,xpc /* pass exception pc */ mr a2,pv /* pass data segment pointer */ /* a3 is still set */ bl exceptions_handle_exception mr. v0,v0 beq L_asm_handle_exception_not_catched mr xpc,v0 /* move handlerpc into xpc */ lwz xptr,LA_SIZE+4*4(sp) /* restore exception pointer */ lwz pv,LA_SIZE+6*4(sp) /* restore data segment pointer */ lwz r0,LA_SIZE+5*4(sp) /* restore return address */ mtlr r0 lwz a4,LA_SIZE+8*4(sp) /* get maybe-leaf flag */ addi sp,sp,(LA_WORD_SIZE+4+5)*4 /* free stack frame */ mr. a4,a4 beq L_asm_handle_exception_no_leaf #if defined(__DARWIN__) #else RESTORE_ARGUMENT_REGISTERS(0) /* if this is a leaf method, we have */ RESTORE_TEMPORARY_REGISTERS(ARG_CNT)/* to restore arg and temp registers */ #endif addi sp,sp,(ARG_CNT+TMP_CNT)*8 /* remove maybe-leaf stackframe */ L_asm_handle_exception_no_leaf: mtctr xpc /* jump to the handler */ bctr L_asm_handle_exception_not_catched: lwz xptr,LA_SIZE+4*4(sp) /* restore exception pointer */ lwz pv,LA_SIZE+6*4(sp) /* restore data segment pointer */ lwz r0,LA_SIZE+5*4(sp) /* restore return address */ mtlr r0 lwz a4,LA_SIZE+8*4(sp) /* get maybe-leaf flag */ addi sp,sp,(LA_WORD_SIZE+4+5)*4 /* free stack frame */ mr. a4,a4 beq L_asm_handle_exception_no_leaf_stack addi sp,sp,(ARG_CNT+TMP_CNT)*8 /* remove maybe-leaf stackframe */ li a4,0 /* clear the maybe-leaf flag */ L_asm_handle_exception_no_leaf_stack: lwz t0,FrameSize(pv) /* get frame size */ add t0,sp,t0 /* pointer to save area */ lwz t1,IsLeaf(pv) /* is leaf procedure */ mr. t1,t1 bne L_asm_handle_exception_no_ra_restore lwz r0,LA_LR_OFFSET(t0) /* restore ra */ mtlr r0 L_asm_handle_exception_no_ra_restore: mflr xpc /* the new xpc is ra */ lwz t1,IntSave(pv) /* t1 = saved int register count */ bl ex_int1 ex_int1: mflr t2 /* t2 = current pc */ #if defined(__DARWIN__) addi t2,t2,lo16(ex_int2-ex_int1) #else addi t2,t2,(ex_int2-ex_int1)@l #endif slwi t1,t1,2 /* t1 = register count * 4 */ subf t2,t1,t2 /* t2 = IntSave - t1 */ mtctr t2 bctr lwz s0,-10*4(t0) lwz s1,-9*4(t0) lwz s2,-8*4(t0) lwz s3,-7*4(t0) lwz s4,-6*4(t0) lwz s5,-5*4(t0) lwz s6,-4*4(t0) lwz s7,-3*4(t0) lwz s8,-2*4(t0) lwz s9,-1*4(t0) ex_int2: subf t0,t1,t0 /* t0 = t0 - register count * 4 */ lwz t1,FltSave(pv) bl ex_flt1 ex_flt1: mflr t2 #if defined(__DARWIN__) addi t2,t2,lo16(ex_flt2-ex_flt1) #else addi t2,t2,(ex_flt2-ex_flt1)@l #endif slwi t1,t1,2 /* t1 = register count * 4 */ subf t2,t1,t2 /* t2 = FltSave - t1 */ mtctr t2 bctr lfd fs0,-10*8(t0) lfd fs1,-9*8(t0) lfd fs2,-8*8(t0) lfd fs3,-7*8(t0) lfd fs4,-6*8(t0) lfd fs5,-5*8(t0) lfd fs6,-4*8(t0) lfd fs7,-3*8(t0) lfd fs8,-2*8(t0) lfd fs9,-1*8(t0) ex_flt2: lwz t0,FrameSize(pv) /* get frame size */ add sp,sp,t0 /* unwind stack */ li a3,0 /* prepare a3 for handle_exception */ mtlr xpc lwz itmp3,4(xpc) extsh itmp3,itmp3 add pv,itmp3,xpc lwz itmp3,8(xpc) srwi itmp3,itmp3,16 cmpwi itmp3,0x3dad bne L_asm_handle_exception_stack_loop lwz itmp3,8(xpc) slwi itmp3,itmp3,16 add pv,pv,itmp3 b L_asm_handle_exception_stack_loop /* asm_wrapper_patcher ********************************************************* XXX Stack layout: 20 return address into JIT code (patch position) 16 pointer to virtual java_objectheader 12 machine code (which is patched back later) 8 unresolved class/method/field reference 4 data segment displacement from load instructions 0 patcher function pointer to call (pv is saved here afterwards) *******************************************************************************/ asm_wrapper_patcher: mflr r0 /* get Java return address (leaf) */ stw r0,6*4(sp) /* store it in the stub stackframe */ /* keep stack 16-bytes aligned: 6+1+37 = 44 */ stwu sp,-(LA_SIZE+(5+58)*4+sizestackframeinfo)(sp) #if defined(__DARWIN__) stw a0,LA_SIZE+(5+0)*4(r1) /* save argument registers */ stw a1,LA_SIZE+(5+1)*4(r1) /* preserve linkage area (24 bytes) */ stw a2,LA_SIZE+(5+2)*4(r1) /* and 4 bytes for 4 argument */ stw a3,LA_SIZE+(5+3)*4(r1) stw a4,LA_SIZE+(5+4)*4(r1) stw a5,LA_SIZE+(5+5)*4(r1) stw a6,LA_SIZE+(5+6)*4(r1) stw a7,LA_SIZE+(5+7)*4(r1) stfd fa0,LA_SIZE+(5+8)*4(sp) stfd fa1,LA_SIZE+(5+10)*4(sp) stfd fa2,LA_SIZE+(5+12)*4(sp) stfd fa3,LA_SIZE+(5+14)*4(sp) stfd fa4,LA_SIZE+(5+16)*4(sp) stfd fa5,LA_SIZE+(5+18)*4(sp) stfd fa6,LA_SIZE+(5+20)*4(sp) stfd fa7,LA_SIZE+(5+22)*4(sp) stfd fa8,LA_SIZE+(5+24)*4(sp) stfd fa9,LA_SIZE+(5+26)*4(sp) stfd fa10,LA_SIZE+(5+28)*4(sp) stfd fa11,LA_SIZE+(5+30)*4(sp) stfd fa12,LA_SIZE+(5+32)*4(sp) stw t0,(LA_WORD_SIZE+5+33)*4(r1) stw t1,(LA_WORD_SIZE+5+34)*4(r1) stw t2,(LA_WORD_SIZE+5+35)*4(r1) stw t3,(LA_WORD_SIZE+5+36)*4(r1) stw t4,(LA_WORD_SIZE+5+37)*4(r1) stw t5,(LA_WORD_SIZE+5+38)*4(r1) stw t6,(LA_WORD_SIZE+5+39)*4(r1) stw t7,(LA_WORD_SIZE+5+40)*4(r1) stfd ft0,(LA_WORD_SIZE+5+42)*4(r1) stfd ft1,(LA_WORD_SIZE+5+44)*4(r1) stfd ft2,(LA_WORD_SIZE+5+46)*4(r1) stfd ft3,(LA_WORD_SIZE+5+48)*4(r1) stfd ft4,(LA_WORD_SIZE+5+50)*4(r1) stfd ft5,(LA_WORD_SIZE+5+52)*4(r1) #else SAVE_ARGUMENT_REGISTERS(LA_WORD_SIZE+1) /* save 8 int/8 float arguments */ SAVE_TEMPORARY_REGISTERS(LA_WORD_SIZE+1+24) #endif stw itmp1,LA_SIZE+(5+54)*4(sp) stw itmp2,LA_SIZE+(5+55)*4(sp) stw pv,LA_SIZE+(5+56)*4(sp) addi a0,sp,LA_SIZE+(5+58)*4 /* create stackframe info */ mr a1,pv addi a2,sp,(8+LA_WORD_SIZE+5+58)*4+sizestackframeinfo mr a3,r0 /* this is correct for leafs */ lwz a4,((5+LA_WORD_SIZE+5+58)*4+sizestackframeinfo)(sp) /* pass xpc */ bl stacktrace_create_extern_stackframeinfo addi a0,sp,(0+LA_WORD_SIZE+5+58)*4+sizestackframeinfo /* pass sp */ lwz pv,(0+LA_WORD_SIZE+5+58)*4+sizestackframeinfo(sp) /* get function */ lwz itmp1,LA_SIZE+(5+56)*4(sp) /* move pv to position of fp */ stw itmp1,(0+LA_WORD_SIZE+5+58)*4+sizestackframeinfo(sp) mtctr pv /* call the patcher function */ bctrl stw v0,LA_SIZE+(5+57)*4(sp) /* save return value */ addi a0,sp,LA_SIZE+(5+58)*4 bl stacktrace_remove_stackframeinfo /* remove stackframe info */ #if defined(__DARWIN__) lwz a0,LA_SIZE+(5+0)*4(r1) lwz a1,LA_SIZE+(5+1)*4(r1) lwz a2,LA_SIZE+(5+2)*4(r1) lwz a3,LA_SIZE+(5+3)*4(r1) lwz a4,LA_SIZE+(5+4)*4(r1) lwz a5,LA_SIZE+(5+5)*4(r1) lwz a6,LA_SIZE+(5+6)*4(r1) lwz a7,LA_SIZE+(5+7)*4(r1) lfd fa0,LA_SIZE+(5+8)*4(sp) lfd fa1,LA_SIZE+(5+10)*4(sp) lfd fa2,LA_SIZE+(5+12)*4(sp) lfd fa3,LA_SIZE+(5+14)*4(sp) lfd fa4,LA_SIZE+(5+16)*4(sp) lfd fa5,LA_SIZE+(5+18)*4(sp) lfd fa6,LA_SIZE+(5+20)*4(sp) lfd fa7,LA_SIZE+(5+22)*4(sp) lfd fa8,LA_SIZE+(5+24)*4(sp) lfd fa9,LA_SIZE+(5+26)*4(sp) lfd fa10,LA_SIZE+(5+28)*4(sp) lfd fa11,LA_SIZE+(5+30)*4(sp) lfd fa12,LA_SIZE+(5+32)*4(sp) lwz t0,(LA_WORD_SIZE+5+33)*4(r1) lwz t1,(LA_WORD_SIZE+5+34)*4(r1) lwz t2,(LA_WORD_SIZE+5+35)*4(r1) lwz t3,(LA_WORD_SIZE+5+36)*4(r1) lwz t4,(LA_WORD_SIZE+5+37)*4(r1) lwz t5,(LA_WORD_SIZE+5+38)*4(r1) lwz t6,(LA_WORD_SIZE+5+39)*4(r1) lwz t7,(LA_WORD_SIZE+5+40)*4(r1) lfd ft0,(LA_WORD_SIZE+5+42)*4(r1) lfd ft1,(LA_WORD_SIZE+5+44)*4(r1) lfd ft2,(LA_WORD_SIZE+5+46)*4(r1) lfd ft3,(LA_WORD_SIZE+5+48)*4(r1) lfd ft4,(LA_WORD_SIZE+5+50)*4(r1) lfd ft5,(LA_WORD_SIZE+5+52)*4(r1) #else RESTORE_ARGUMENT_REGISTERS(LA_WORD_SIZE+1) /* restore 8 int/8 float args */ RESTORE_TEMPORARY_REGISTERS(LA_WORD_SIZE+1+24) #endif lwz itmp1,LA_SIZE+(5+54)*4(sp) lwz itmp2,LA_SIZE+(5+55)*4(sp) lwz pv,LA_SIZE+(5+56)*4(sp) lwz itmp3,LA_SIZE+(5+57)*4(sp) /* restore return value into temp reg.*/ lwz r0,(6+LA_WORD_SIZE+5+58)*4+sizestackframeinfo(sp) /* restore RA */ mtlr r0 mr. itmp3,itmp3 /* check for an exception */ beq L_asm_wrapper_patcher_exception /* get return address (into JIT code) */ lwz itmp3,(5+LA_WORD_SIZE+5+58)*4+sizestackframeinfo(sp) /* remove stack frame + patcher stub stack */ addi sp,sp,(8+LA_WORD_SIZE+5+58)*4+sizestackframeinfo mtctr itmp3 bctr /* jump to new patched code */ L_asm_wrapper_patcher_exception: lwz xpc,(5+LA_WORD_SIZE+5+58)*4+sizestackframeinfo(sp) addi sp,sp,(8+LA_WORD_SIZE+5+58)*4+sizestackframeinfo #if defined(USE_THREADS) && defined(NATIVE_THREADS) mflr r0 stw r0,LA_LR_OFFSET(sp) stwu sp,-(LA_SIZE+1*4)(sp) /* preserve linkage area */ stw xpc,LA_SIZE+0*4(sp) bl builtin_asm_get_exceptionptrptr lwz xpc,LA_SIZE+0*4(sp) lwz r0,LA_SIZE+1*4+LA_LR_OFFSET(sp) mtlr r0 addi sp,sp,LA_SIZE+1*4 #else # if defined(__DARWIN__) lwz v0,lo16(_no_threads_exceptionptr-0b)(pv) # else lis v0,_no_threads_exceptionptr@ha addi v0,v0,_no_threads_exceptionptr@l # endif #endif lwz xptr,0(v0) /* get the exception pointer */ li itmp3,0 stw itmp3,0(v0) /* clear the exception pointer */ b asm_handle_exception asm_cacheflush: add r4,r3,r4 rlwinm r3,r3,0,0,26 addi r4,r4,31 rlwinm r4,r4,0,0,26 mr r5,r3 1: cmplw r3,r4 bge 0f dcbst 0,r3 addi r3,r3,32 b 1b 0: sync 1: cmplw r5,r4 bge 0f icbi 0,r5 addi r5,r5,32 b 1b 0: sync isync blr .align 3 doublezero: .double 0.0 asm_initialize_thread_stack: addi r4,r4,-256 stw r3,120(r4) li r3,0 stw r3,124(r4) stw r3,0(r4) stw r3,4(r4) stw r3,8(r4) stw r3,12(r4) stw r3,16(r4) stw r3,20(r4) stw r3,24(r4) stw r3,28(r4) stw r3,32(r4) stw r3,36(r4) stw r3,128(r4) stw r3,132(r4) stw r3,136(r4) stw r3,140(r4) stw r3,144(r4) stw r3,148(r4) stw r3,152(r4) stw r3,156(r4) mflr r0 bl 0f 0: mflr r3 mtlr r0 #if defined(__DARWIN__) lfd fr0,lo16(doublezero-0b)(r3) #else lfd fr0,(doublezero-0b)@l(r3) #endif stfd fr0,40(r4) stfd fr0,48(r4) stfd fr0,56(r4) stfd fr0,64(r4) stfd fr0,72(r4) stfd fr0,80(r4) stfd fr0,88(r4) stfd fr0,96(r4) stfd fr0,104(r4) stfd fr0,112(r4) stfd fr0,160(r4) stfd fr0,168(r4) stfd fr0,176(r4) stfd fr0,184(r4) stfd fr0,192(r4) stfd fr0,200(r4) stfd fr0,208(r4) stfd fr0,216(r4) mr r3,r4 blr asm_perform_threadswitch: mflr r0 addi r1,r1,-224 stw r0,120(r1) stw pv,124(r1) stw r14,0(r1) stw r15,4(r1) stw r24,8(r1) stw r25,12(r1) stw r26,16(r1) stw r27,20(r1) stw r28,24(r1) stw r29,28(r1) stw r30,32(r1) stw r31,36(r1) stfd fr14,40(r1) stfd fr15,48(r1) stfd fr24,56(r1) stfd fr25,64(r1) stfd fr26,72(r1) stfd fr27,80(r1) stfd fr28,88(r1) stfd fr29,96(r1) stfd fr30,104(r1) stfd fr31,112(r1) stw r16,128(r1) stw r17,132(r1) stw r18,136(r1) stw r19,140(r1) stw r20,144(r1) stw r21,148(r1) stw r22,152(r1) stw r23,156(r1) stfd fr16,160(r1) stfd fr17,168(r1) stfd fr18,176(r1) stfd fr19,184(r1) stfd fr20,192(r1) stfd fr21,200(r1) stfd fr22,208(r1) stfd fr23,216(r1) stw r1,0(r3) stw r1,0(r5) lwz r1,0(r4) lwz r0,120(r1) lwz pv,124(r1) lwz r14,0(r1) lwz r15,4(r1) lwz r24,8(r1) lwz r25,12(r1) lwz r26,16(r1) lwz r27,20(r1) lwz r28,24(r1) lwz r29,28(r1) lwz r30,32(r1) lwz r31,36(r1) lfd fr14,40(r1) lfd fr15,48(r1) lfd fr24,56(r1) lfd fr25,64(r1) lfd fr26,72(r1) lfd fr27,80(r1) lfd fr28,88(r1) lfd fr29,96(r1) lfd fr30,104(r1) lfd fr31,112(r1) lwz r16,128(r1) lwz r17,132(r1) lwz r18,136(r1) lwz r19,140(r1) lwz r20,144(r1) lwz r21,148(r1) lwz r22,152(r1) lwz r23,156(r1) lfd fr16,160(r1) lfd fr17,168(r1) lfd fr18,176(r1) lfd fr19,184(r1) lfd fr20,192(r1) lfd fr21,200(r1) lfd fr22,208(r1) lfd fr23,216(r1) mtlr r0 addi r1,r1,224 blr asm_switchstackandcall: mflr r0 stwu r3,-48(r3) stw r0,40(r3) stw r1,44(r3) stw r1,0(r5) mr r1,r3 mtctr r4 mr r3,r6 bctrl lwz r0,40(r1) mtlr r0 lwz r1,44(r1) blr asm_getclassvalues_atomic: _crit_restart: _crit_begin: lwz r6,offbaseval(r3) lwz r7,offdiffval(r3) lwz r8,offbaseval(r4) _crit_end: stw r6,offcast_super_baseval(r5) stw r7,offcast_super_diffval(r5) stw r8,offcast_sub_baseval(r5) blr .data asm_criticalsections: #if defined(USE_THREADS) && defined(NATIVE_THREADS) .long _crit_begin .long _crit_end .long _crit_restart #endif .long 0 /* * 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: */