X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=src%2Fvm%2Fjit%2Fx86_64%2Fasmpart.S;h=bfeb1e0fe8f44a5a13750c4689f357f194b87d43;hb=4bd464b88e2ca31eb0234dfe783d535058098d52;hp=d69c3955d4eb31b183a09012d55d0aedc4dc1a1a;hpb=0715f7134c04947ca450849af3a7f7ba95ca7988;p=cacao.git diff --git a/src/vm/jit/x86_64/asmpart.S b/src/vm/jit/x86_64/asmpart.S index d69c3955d..bfeb1e0fe 100644 --- a/src/vm/jit/x86_64/asmpart.S +++ b/src/vm/jit/x86_64/asmpart.S @@ -1,9 +1,7 @@ /* src/vm/jit/x86_64/asmpart.S - Java-C interface functions for x86_64 - Copyright (C) 1996-2005 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) 1996-2012 + CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO This file is part of CACAO. @@ -19,210 +17,45 @@ 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., 59 Temple Place - Suite 330, Boston, MA - 02111-1307, USA. - - Contact: cacao@complang.tuwien.ac.at - - Authors: Andreas Krall - Reinhard Grafl - Christian Thalinger - - $Id: asmpart.S 2448 2005-05-11 13:03:20Z twisti $ + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + 02110-1301, USA. */ #include "config.h" + #include "vm/jit/x86_64/arch.h" -#include "vm/jit/x86_64/offsets.h" -#include "vm/jit/x86_64/asmoffsets.h" - - -/* define it like the risc way */ - -#define v0 %rax -#define v0l %eax - -#define a0 %rdi -#define a1 %rsi -#define a2 %rdx -#define a3 %rcx -#define a4 %r8 -#define a5 %r9 - -#define fa0 %xmm0 -#define fa1 %xmm1 -#define fa2 %xmm2 -#define fa3 %xmm3 -#define fa4 %xmm4 -#define fa5 %xmm5 -#define fa6 %xmm6 -#define fa7 %xmm7 - -#define itmp1 %rax -#define itmp2 %r10 -#define itmp3 %r11 - -#define itmp1l %eax -#define itmp2l %r10d -#define itmp3l %r11d - -#define itmp1b %al -#define itmp2b %r10b -#define itmp3b %r11b - -#define xptr itmp1 -#define xpc itmp2 - - -/* save and restore macros ****************************************************/ - -#define SAVE_ARGUMENT_REGISTERS \ - mov a0,0*8(%rsp) ; \ - mov a1,1*8(%rsp) ; \ - mov a2,2*8(%rsp) ; \ - mov a3,3*8(%rsp) ; \ - mov a4,4*8(%rsp) ; \ - mov a5,5*8(%rsp) ; \ - movq fa0,6*8(%rsp) ; \ - movq fa1,7*8(%rsp) ; \ - movq fa2,8*8(%rsp) ; \ - movq fa3,9*8(%rsp) ; \ - movq fa4,10*8(%rsp) ; \ - movq fa5,11*8(%rsp) ; \ - movq fa6,12*8(%rsp) ; \ - movq fa7,13*8(%rsp) ; - - -#define RESTORE_ARGUMENT_REGISTERS \ - mov 0*8(%rsp),a0 ; \ - mov 1*8(%rsp),a1 ; \ - mov 2*8(%rsp),a2 ; \ - mov 3*8(%rsp),a3 ; \ - mov 4*8(%rsp),a4 ; \ - mov 5*8(%rsp),a5 ; \ - movq 6*8(%rsp),fa0 ; \ - movq 7*8(%rsp),fa1 ; \ - movq 8*8(%rsp),fa2 ; \ - movq 9*8(%rsp),fa3 ; \ - movq 10*8(%rsp),fa4 ; \ - movq 11*8(%rsp),fa5 ; \ - movq 12*8(%rsp),fa6 ; \ - movq 13*8(%rsp),fa7 ; - - -#define SAVE_TEMPORARY_REGISTERS \ - mov %rbx,14*8(%rsp) - - -#define RESTORE_TEMPORARY_REGISTERS \ - mov 14*8(%rsp),%rbx +#include "vm/jit/x86_64/md-abi.h" +#include "vm/jit/x86_64/md-asm.h" +#include "vm/jit/abi-asm.h" +#include "vm/jit/methodheader.h" - .text + .text -/********************* exported functions and variables ***********************/ - .globl asm_calljavafunction - .globl asm_calljavafunction_int +/* export functions ***********************************************************/ - .globl asm_calljavafunction2 - .globl asm_calljavafunction2int - .globl asm_calljavafunction2long - .globl asm_calljavafunction2float - .globl asm_calljavafunction2double + .globl asm_vm_call_method + .globl asm_vm_call_method_int + .globl asm_vm_call_method_long + .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_builtin_arraycheckcast - .globl asm_builtin_aastore + .globl asm_abstractmethoderror .globl asm_builtin_f2i .globl asm_builtin_f2l .globl asm_builtin_d2i .globl asm_builtin_d2l - .globl asm_perform_threadswitch - .globl asm_initialize_thread_stack - .globl asm_switchstackandcall - .globl asm_criticalsections - .globl asm_getclassvalues_atomic - - .globl asm_prepare_native_stackinfo - .globl asm_remove_native_stackinfo - .globl asm_throw_and_handle_exception - .globl asm_throw_and_handle_hardware_arithmetic_exception - - -/********************* 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); * -* * -*******************************************************************************/ - -call_name: - .align 8 - - .quad 0 /* catch type all */ - .quad calljava_xhandler /* handler pc */ - .quad calljava_xhandler /* end pc */ - .quad asm_calljavafunction /* start pc */ - .long 1 /* extable size */ - .long 0 - .quad 0 /* line number table start */ - .quad 0 /* line number table size */ - .long 0 - .long 0 /* fltsave */ - .long 0 /* intsave */ - .long 0 /* isleaf */ - .long 0 /* IsSync */ - .long 8 /* frame size */ - .quad 0 /* method pointer (pointer to name) */ - -asm_calljavafunction: -asm_calljavafunction_int: - sub $(3*8),%rsp /* keep stack 16-byte aligned */ - mov %rbp,0*8(%rsp) - mov %rbx,1*8(%rsp) /* %rbx is not a callee saved in cacao */ - mov %rdi,%rax /* move function pointer to %rax */ - /* compilerstub uses this */ - - mov %rsi,%rdi /* pass remaining parameters */ - mov %rdx,%rsi - mov %rcx,%rdx - mov %r8,%rcx - - lea asm_call_jit_compiler,%r11 - call *%r11 /* call JIT compiler */ - - mov 0*8(%rsp),%rbp - mov 1*8(%rsp),%rbx - add $(3*8),%rsp /* free stack space */ - ret - -calljava_xhandler: - mov %rax,%rdi /* pass exception pointer */ - call builtin_throw_exception - mov 0*8(%rsp),%rbp - mov 1*8(%rsp),%rbx - add $(3*8),%rsp - xor %rax,%rax /* return NULL */ - ret - /********************* function asm_calljavafunction *************************** * * @@ -238,352 +71,101 @@ calljava_xhandler: * * *******************************************************************************/ -call_name2: .align 8 - .quad 0 /* catch type all */ - .quad calljava_xhandler2 /* handler pc */ - .quad calljava_xhandler2 /* end pc */ - .quad asm_calljavafunction2 /* start pc */ - .long 1 /* extable size */ - .long 0 - .quad 0 /* line number table start */ - .quad 0 /* line number table size */ - .long 0 - .long 0 /* fltsave */ - .long 0 /* intsave */ - .long 0 /* isleaf */ - .long 0 /* IsSync */ - .long 24 /* frame size */ - .quad 0 /* method pointer (pointer to name) */ - -asm_calljavafunction2: -asm_calljavafunction2int: -asm_calljavafunction2long: -asm_calljavafunction2float: -asm_calljavafunction2double: - sub $(7*8),%rsp /* keep stack 16-byte aligned */ - mov %rbx,0*8(%rsp) /* %rbx is not a callee saved in cacao */ - mov %rbp,1*8(%rsp) - mov %r12,2*8(%rsp) - mov %r13,3*8(%rsp) - mov %r14,4*8(%rsp) - mov %r15,5*8(%rsp) - - mov %rdi,%rax /* move method pointer for compiler */ - xor %rbp,%rbp /* set argument stack frame to zero */ - - test %rsi,%rsi /* maybe we have no args... */ - jle L_copy_done - - mov %rsi,itmp3 /* arg count */ - mov %rcx,itmp2 /* pointer to arg block */ - - mov itmp2,%r14 /* save argument block pointer */ - mov itmp3,%r15 /* save argument count */ - - sub $sizejniblock,itmp2 /* initialize pointer (smaller code) */ - add $1,itmp3 /* initialize argument count */ - xor %r12,%r12 /* initialize integer argument counter */ - xor %r13,%r13 /* initialize float argument counter */ - -L_register_copy: - add $sizejniblock,itmp2 /* goto next argument block */ - dec itmp3 /* argument count - 1 */ - jz L_register_copy_done - andb $0x02,offjniitemtype(itmp2) /* is this a float/double type? */ - jnz L_register_handle_float /* yes, handle it */ - - cmp $INT_ARG_CNT,%r12 /* are we out of integer argument */ - je L_register_copy /* register? yes, next loop */ - - lea jumptable_integer,%rbp - mov 0(%rbp,%r12,8),%rbx - inc %r12 /* integer argument counter + 1 */ - jmp *%rbx - -L_register_handle_float: - cmp $FLT_ARG_CNT,%r13 /* are we out of float argument */ - je L_register_copy /* register? yes, next loop */ - - lea jumptable_float,%rbp - mov 0(%rbp,%r13,8),%rbx - inc %r13 /* float argument counter + 1 */ - jmp *%rbx - -L_register_copy_done: - mov %r15,%rbp /* calculate remaining arguments */ - sub %r12,%rbp /* - integer arguments in registers */ - sub %r13,%rbp /* - float arguments in registers */ - jle L_copy_done /* are all assigned to registers? */ - - shl $3,%rbp /* calculate stack size */ - sub %rbp,%rsp /* stack frame for arguments */ - mov %rsp,%rbx /* use %rbx as temp sp */ - - sub $sizejniblock,%r14 /* initialize pointer (smaller code) */ - add $1,%r15 /* initialize argument count */ - -L_stack_copy_loop: - add $sizejniblock,%r14 /* goto next argument block */ - dec %r15 /* are there any arguments left? */ - jz L_copy_done /* no test needed after dec */ - - andb $0x02,offjniitemtype(%r14) /* is this a float/double type? */ - jnz L_stack_handle_float - dec %r12 /* arguments assigned to registers */ - jge L_stack_copy_loop - jmp L_stack_copy - -L_stack_handle_float: - dec %r13 /* arguments assigned to registers */ - jge L_stack_copy_loop - -L_stack_copy: - mov offjniitem(%r14),itmp3 /* copy s8 argument onto stack */ - mov itmp3,0(%rbx) - add $8,%rbx /* increase sp to next argument */ - jmp L_stack_copy_loop - -L_copy_done: - lea asm_call_jit_compiler,%r11/* %rax still contains method pointer */ - call *%r11 /* call JIT compiler */ - - add %rbp,%rsp /* remove argument stack frame if any */ - - mov 5*8(%rsp),%r15 /* restore callee saved registers */ - mov 4*8(%rsp),%r14 - mov 3*8(%rsp),%r13 - mov 2*8(%rsp),%r12 - mov 1*8(%rsp),%rbp - mov 0*8(%rsp),%rbx - add $(7*8),%rsp /* free stack space */ + .long 0 /* fltsave */ + .long 0 /* intsave */ + .long 0 /* isleaf */ + .long 0 /* frame size */ + .quad 0 /* codeinfo pointer */ + +asm_vm_call_method: +asm_vm_call_method_int: +asm_vm_call_method_long: +asm_vm_call_method_float: +asm_vm_call_method_double: + sub $(7*8),sp /* keep stack 16-byte aligned */ + mov %rbx,0*8(sp) /* %rbx is not a callee saved in cacao*/ + mov s0,1*8(sp) + mov s1,2*8(sp) + mov s2,3*8(sp) + mov s3,4*8(sp) + mov s4,5*8(sp) + + mov a0,6*8(sp) /* store method PV */ + + mov sp,s0 /* save stack pointer */ + + mov a1,t0 /* address of data structure */ + mov a2,itmp1 /* number of stack arguments */ + + mov 0*8(t0),a0 + mov 1*8(t0),a1 + mov 2*8(t0),a2 + mov 3*8(t0),a3 + mov 4*8(t0),a4 + mov 5*8(t0),a5 + + movq 6*8(t0),fa0 + movq 7*8(t0),fa1 + movq 8*8(t0),fa2 + movq 9*8(t0),fa3 + movq 10*8(t0),fa4 + movq 11*8(t0),fa5 + movq 12*8(t0),fa6 + movq 13*8(t0),fa7 + + cmp $0,itmp1l + je L_asm_vm_call_method_stack_copy_done + + mov itmp1,itmp2 + add $1,itmp2 /* keep stack 16-byte aligned */ + and $0xfffffffffffffffe,itmp2 + shl $3,itmp2 /* calculate stack size */ + sub itmp2,sp /* create stack frame */ + mov sp,itmp2 /* temporary stack pointer */ + +L_asm_vm_call_method_stack_copy_loop: + mov 14*8(t0),itmp3 /* load argument */ + mov itmp3,0(itmp2) /* store argument on stack */ + + sub $1,itmp1l /* subtract 1 argument */ + add $8,t0 /* set address of next argument */ + add $8,itmp2 /* increase SP */ + + cmp $0,itmp1l + jg L_asm_vm_call_method_stack_copy_loop + +L_asm_vm_call_method_stack_copy_done: + lea (6*8-256)(s0),mptr /* We subtract 256 to force the next */ + /* move instruction to have a 32-bit */ + /* offset. */ + + mov (0*8+256)(mptr),itmp3 /* load PV */ + call *itmp3 + +L_asm_vm_call_method_return: + mov s0,sp /* restore SP */ + + mov 0*8(sp),%rbx /* restore callee saved registers */ + mov 1*8(sp),s0 + mov 2*8(sp),s1 + mov 3*8(sp),s2 + mov 4*8(sp),s3 + mov 5*8(sp),s4 + add $(7*8),sp /* free stack space */ ret -calljava_xhandler2: - mov %rax,%rdi /* pass exception pointer */ - call builtin_throw_exception - - mov 5*8(%rsp),%r15 /* restore callee saved registers */ - mov 4*8(%rsp),%r14 - mov 3*8(%rsp),%r13 - mov 2*8(%rsp),%r12 - mov 1*8(%rsp),%rbp - mov 0*8(%rsp),%rbx - add $(7*8),%rsp /* free stack space */ - xor %rax,%rax /* return NULL */ - ret +asm_vm_call_method_exception_handler: + mov xptr,a0 /* pass exception pointer */ + call builtin_throw_exception@PLT + jmp L_asm_vm_call_method_return +asm_vm_call_method_end: + nop -jumptable_integer: - .quad handle_a0 - .quad handle_a1 - .quad handle_a2 - .quad handle_a3 - .quad handle_a4 - .quad handle_a5 - -handle_a0: - mov offjniitem(itmp2),a0 - jmp L_register_copy -handle_a1: - mov offjniitem(itmp2),a1 - jmp L_register_copy -handle_a2: - mov offjniitem(itmp2),a2 - jmp L_register_copy -handle_a3: - mov offjniitem(itmp2),a3 - jmp L_register_copy -handle_a4: - mov offjniitem(itmp2),a4 - jmp L_register_copy -handle_a5: - mov offjniitem(itmp2),a5 - jmp L_register_copy - - -jumptable_float: - .quad handle_fa0 - .quad handle_fa1 - .quad handle_fa2 - .quad handle_fa3 - .quad handle_fa4 - .quad handle_fa5 - .quad handle_fa6 - .quad handle_fa7 - -handle_fa0: - movq offjniitem(itmp2),fa0 - jmp L_register_copy -handle_fa1: - movq offjniitem(itmp2),fa1 - jmp L_register_copy -handle_fa2: - movq offjniitem(itmp2),fa2 - jmp L_register_copy -handle_fa3: - movq offjniitem(itmp2),fa3 - jmp L_register_copy -handle_fa4: - movq offjniitem(itmp2),fa4 - jmp L_register_copy -handle_fa5: - movq offjniitem(itmp2),fa5 - jmp L_register_copy -handle_fa6: - movq offjniitem(itmp2),fa6 - jmp L_register_copy -handle_fa7: - movq offjniitem(itmp2),fa7 - jmp L_register_copy - - -/****************** function asm_call_jit_compiler ***************************** -* * -* invokes the compiler for untranslated JavaVM methods. * -* * -* Register R0 contains a pointer to the method info structure (prepared * -* by createcompilerstub). Using the return address in R26 and the * -* offset in the LDA instruction or using the value in methodptr R28 the * -* patching address for storing the method address can be computed: * -* * -* method address was either loaded using * -* * -* i386_mov_imm_reg(a, REG_ITMP2) ; invokestatic/special * -* i386_call_reg(REG_ITMP2) * -* * -* or * -* * -* i386_mov_membase_reg(REG_SP, 0, REG_ITMP2) ; invokevirtual/interface * -* i386_mov_membase_reg(REG_ITMP2, OFFSET(, vftbl), REG_ITMP3) * -* i386_mov_membase_reg(REG_ITMP3, OFFSET(vftbl, table[0]) + \ * -* sizeof(methodptr) * m->vftblindex, REG_ITMP1) * -* i386_call_reg(REG_ITMP1) * -* * -* in the static case the method pointer can be computed using the * -* return address and the lda function following the jmp instruction * -* * -*******************************************************************************/ - -asm_call_jit_compiler: - sub $8,%rsp /* keep stack 16-byte aligned */ - - mov %rbx,(%rsp) /* save register */ - - mov 8(%rsp),%r11 /* get return address */ - mov -1(%r11),%bl /* get function code */ - cmp $0xd2,%bl /* called with `call *REG_ITMP2' (%r10)? */ - jne L_not_static_special - - sub $11,%r11 /* calculate address of immediate */ - jmp L_call_jit_compile - -L_not_static_special: - cmp $0xd0,%bl /* called with `call *REG_ITMP1' (%rax) */ - jne L_not_virtual_interface - - sub $7,%r11 /* calculate address of offset */ - mov (%r11),%r11d /* get offset (32-bit) */ - add %r10,%r11 /* add base address to get method address */ - jmp L_call_jit_compile -L_not_virtual_interface: /* a call from asm_calljavamethod */ - xor %r11,%r11 - -L_call_jit_compile: - mov (%rsp),%rbx /* restore register */ - - sub $(24*8),%rsp /* 8 + 6*8 + 8*8 + 8*8 */ - - mov %r11,0*8(%rsp) /* save address for method pointer */ - - mov a0,1*8(%rsp) /* save arguments */ - mov a1,2*8(%rsp) - mov a2,3*8(%rsp) - mov a3,4*8(%rsp) - mov a4,5*8(%rsp) - mov a5,6*8(%rsp) - - movq fa0,7*8(%rsp) - movq fa1,8*8(%rsp) - movq fa2,9*8(%rsp) - movq fa3,10*8(%rsp) - movq fa4,11*8(%rsp) - movq fa5,12*8(%rsp) - movq fa6,13*8(%rsp) - movq fa7,14*8(%rsp) - - movq %xmm8,15*8(%rsp)/* we use them as callee saved registers */ - movq %xmm9,16*8(%rsp) - movq %xmm10,17*8(%rsp) - movq %xmm11,18*8(%rsp) - movq %xmm12,19*8(%rsp) - movq %xmm13,20*8(%rsp) - movq %xmm14,21*8(%rsp) - movq %xmm15,22*8(%rsp) - - mov %rax,%rdi /* pass method pointer */ - call jit_compile - - mov 0*8(%rsp),%r11 - - mov 1*8(%rsp),a0 - mov 2*8(%rsp),a1 - mov 3*8(%rsp),a2 - mov 4*8(%rsp),a3 - mov 5*8(%rsp),a4 - mov 6*8(%rsp),a5 - - movq 7*8(%rsp),fa0 - movq 8*8(%rsp),fa1 - movq 9*8(%rsp),fa2 - movq 10*8(%rsp),fa3 - movq 11*8(%rsp),fa4 - movq 12*8(%rsp),fa5 - movq 13*8(%rsp),fa6 - movq 14*8(%rsp),fa7 - - movq 15*8(%rsp),%xmm8 - movq 16*8(%rsp),%xmm9 - movq 17*8(%rsp),%xmm10 - movq 18*8(%rsp),%xmm11 - movq 19*8(%rsp),%xmm12 - movq 20*8(%rsp),%xmm13 - movq 21*8(%rsp),%xmm14 - movq 22*8(%rsp),%xmm15 - - add $(24*8),%rsp - add $8,%rsp /* keep stack 16-byte aligned */ - - test %rax,%rax /* check for exception */ - je L_asm_call_jit_compiler_exception - - test %r11,%r11 /* is address == 0 (asm_calljavamethod) */ - je L_call_method - - mov %rax,(%r11) /* and now save the new pointer */ - -L_call_method: - jmp *%rax /* ...and now call the new method */ - -L_asm_call_jit_compiler_exception: -#if defined(USE_THREADS) && defined(NATIVE_THREADS) - call builtin_asm_get_exceptionptrptr - mov %rax,itmp2 -#else - lea _exceptionptr,itmp2 -#endif - mov (itmp2),xptr /* get the exception pointer */ - movl $0,(itmp2) /* clear the exception pointer */ - - pop xpc /* delete return address */ - sub $5,xpc /* faulting address is ra - 5 */ - - jmp asm_handle_exception - - -/********************* function asm_handle_exception *************************** +/* 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 * @@ -591,322 +173,158 @@ L_asm_call_jit_compiler_exception: * 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: - add $8,%rsp /* clear return address of native stub*/ + add $8,sp /* clear return address of native stub*/ asm_handle_exception: - sub $(4*8),%rsp - mov xptr,0*8(%rsp) /* save exception pointer */ - mov xpc,1*8(%rsp) /* save exception pc */ +L_asm_handle_exception: /* required for PIC code */ + sub $((ARG_CNT+TMP_CNT)*8),sp /* create maybe-leaf stackframe */ + + SAVE_ARGUMENT_REGISTERS(0) /* we save arg and temp registers in */ + SAVE_TEMPORARY_REGISTERS(ARG_CNT) /* case this is a leaf method */ + + mov $((ARG_CNT+TMP_CNT)*8),a3 /* prepare a3 for handle_exception */ + mov $1,t0 /* set maybe-leaf flag */ + +L_asm_handle_exception_stack_loop: + sub $(6*8),sp + mov xptr,0*8(sp) /* save exception pointer */ + mov xpc,1*8(sp) /* save exception pc */ + add sp,a3 /* calculate Java sp into a3... */ + add $(6*8),a3 + mov a3,3*8(sp) /* ...and save it */ + mov t0,4*8(sp) /* save maybe-leaf flag */ + + mov xpc,a0 /* exception pc */ + call methodtree_find@PLT + mov v0,2*8(sp) /* save data segment pointer */ - mov xpc,%rdi /* exception pc */ - call codegen_findmethod - mov %rax,itmp3 - mov %rax,2*8(%rsp) /* save data segment pointer */ - - mov 0*8(%rsp),%rax /* restore exception pointer */ - mov 1*8(%rsp),%r10 /* restore exception pc */ - -ex_stack_loop: - mov %rax,%rdi /* exception pointer */ - mov MethodPointer(itmp3),%rsi /* method pointer */ - mov xpc,%rdx /* exception pc */ - mov $0,%rcx - mov $1,%r8 /* set noindent flag */ - call builtin_trace_exception - - mov 2*8(%rsp),itmp3 /* %r11 = data segment pointer */ - mov ExTableSize(itmp3),%rcx /* %rcx = exception table size */ - test %rcx,%rcx /* if empty table skip */ - je empty_table - - lea ExTableStart(itmp3),%rdi /* %rdi = start of exception table */ - mov 0*8(%rsp),xptr /* get xptr */ - -ex_table_loop: - mov 1*8(%rsp),xpc /* get xpc */ - - mov ExStartPC(%rdi),%rdx /* %rdx = exception start pc */ - cmp xpc,%rdx /* %rdx = (startpc <= xpc) */ - jg ex_table_cont /* if (false) continue */ - mov ExEndPC(%rdi),%rdx /* %rdx = exception end pc */ - cmp %rdx,xpc /* %rdx = (xpc < endpc) */ - jge ex_table_cont /* if (false) continue */ - mov ExCatchType(%rdi),%rdx /* %rdx = exception catch type */ - test %rdx,%rdx /* NULL catches everything */ - je ex_handle_it - - cmpl $0,offclassloaded(%rdx) /* check if class is loaded */ - jne L_class_loaded - - sub $(4*8),%rsp - mov %rax,0*8(%rsp) - mov %rcx,1*8(%rsp) - mov %rdx,2*8(%rsp) - mov %rdi,3*8(%rsp) - - mov %rdx,%rdi - call load_class_bootstrap - - mov 0*8(%rsp),%rax - mov 1*8(%rsp),%rcx - mov 2*8(%rsp),%rdx - mov 3*8(%rsp),%rdi - add $(4*8),%rsp - -L_class_loaded: - cmpl $0,offclasslinked(%rdx) /* check if class is linked */ - jne L_class_linked - - sub $(4*8),%rsp - mov %rax,0*8(%rsp) - mov %rcx,1*8(%rsp) - mov %rdx,2*8(%rsp) - mov %rdi,3*8(%rsp) - - mov %rdx,%rdi - call link_class - - mov 0*8(%rsp),%rax - mov 1*8(%rsp),%rcx - mov 2*8(%rsp),%rdx - mov 3*8(%rsp),%rdi - add $(4*8),%rsp - -L_class_linked: -#if defined(USE_THREADS) && defined(NATIVE_THREADS) - push %rdx - -_crit_restart1: - mov 0(%rsp),%rdx -#endif + mov 0*8(sp),a0 /* pass exception pointer */ + mov 1*8(sp),a1 /* pass exception pc */ + mov v0,a2 /* pass data segment pointer */ + mov 3*8(sp),a3 /* pass Java stack pointer */ + call exceptions_handle_exception@PLT -_crit_begin1: - mov offobjvftbl(%rax),%rsi /* %rsi = vftblptr(xptr) */ - mov offclassvftbl(%rdx),%rdx /* %rdx = vftblptr(catchtype) class (not obj) */ - mov offbaseval(%rsi),%esi /* %esi = baseval(xptr) */ - mov offbaseval(%rdx),%r10d /* %r10d = baseval(catchtype) */ - mov offdiffval(%rdx),%edx /* %edx = diffval(catchtype) */ -_crit_end1: - sub %r10d,%esi /* %esi = baseval(xptr) - baseval(catchtype) */ - -#if defined(USE_THREADS) && defined(NATIVE_THREADS) - add $8,%rsp -#endif + test v0,v0 + jz L_asm_handle_exception_not_catched - cmp %edx,%esi /* xptr is instanceof catchtype */ - ja ex_table_cont - -ex_handle_it: - mov ExHandlerPC(%rdi),xpc /* xpc = exception handler pc */ + mov v0,xpc /* move handlerpc into xpc */ + mov 0*8(sp),xptr /* restore exception pointer */ + mov 4*8(sp),t0 /* get maybe-leaf flag */ + add $(6*8),sp /* free stack frame */ - mov 0*8(%rsp),%rax /* restore exception pointer */ - add $(4*8),%rsp /* free stack frame */ + test t0,t0 /* test for maybe-leaf flag */ + jz L_asm_handle_exception_no_leaf - jmp *xpc /* jump to the handler */ + RESTORE_ARGUMENT_REGISTERS(0) /* if this is a leaf method, we have */ + RESTORE_TEMPORARY_REGISTERS(ARG_CNT)/* to restore arg and temp registers */ -ex_table_cont: - lea ExEntrySize(%rdi),%rdi /* next exception table entry */ - dec %rcx /* decrement entry counter */ - test %rcx,%rcx /* if (t0 > 0) next entry */ - jg ex_table_loop - -empty_table: - mov 0*8(%rsp),%rax /* restore exception pointer */ - mov 1*8(%rsp),%r10 /* restore exception pc */ - mov 2*8(%rsp),%r11 /* restore data segment pointer */ - add $(4*8),%rsp - - mov %rax,%rcx /* save exception pointer */ - -ex_already_cleared: - movl IsSync(%r11),%eax /* %rax = SyncOffset */ - test %rax,%rax /* if zero no monitorexit */ - je no_monitor_exit - -#if defined(USE_THREADS) - add %rsp,%rax - mov -8(%rax),%rdi - - sub $(4*8),%rsp - mov %rcx,0*8(%rsp) - mov %r10,1*8(%rsp) - mov %r11,2*8(%rsp) - - call builtin_monitorexit + add $((ARG_CNT+TMP_CNT)*8),sp /* remove maybe-leaf stackframe */ - mov 0*8(%rsp),%rcx - mov 1*8(%rsp),%r10 - mov 2*8(%rsp),%r11 - add $(4*8),%rsp -#endif +L_asm_handle_exception_no_leaf: + jmp *xpc /* jump to the handler */ -no_monitor_exit: - mov FrameSize(%r11),%eax /* %eax = frame size */ - add %rax,%rsp /* unwind stack */ - mov %rsp,%rax /* %rax = pointer to save area */ +L_asm_handle_exception_not_catched: + mov 0*8(sp),xptr /* restore exception pointer */ + mov 2*8(sp),itmp3 /* restore data segment pointer */ + mov 4*8(sp),t0 /* get maybe-leaf flag */ + add $(6*8),sp - mov IntSave(%r11),%edx /* %edx = saved int register count*/ - test %edx,%edx - je noint - - cmp $1,%edx - je int1 - cmp $2,%edx - je int2 - cmp $3,%edx - je int3 - cmp $4,%edx - je int4 - cmp $5,%edx - je int5 - - mov -48(%rax),%rbx -int5: - mov -40(%rax),%rbp + test t0,t0 + jz L_asm_handle_exception_no_leaf_stack + + add $((ARG_CNT+TMP_CNT)*8),sp /* remove maybe-leaf stackframe */ + xor t0,t0 /* clear the isleaf flags */ + +L_asm_handle_exception_no_leaf_stack: + mov FrameSize(itmp3),itmp2l /* get frame size */ + add sp,itmp2 /* pointer to save area */ + + mov IntSave(itmp3),a0l /* a0l = saved int register count */ + test a0l,a0l + je noint + + cmp $1,a0l + je int1 + cmp $2,a0l + je int2 + cmp $3,a0l + je int3 + cmp $4,a0l + je int4 + + mov -5*8(itmp2),s0 int4: - mov -32(%rax),%r12 + mov -4*8(itmp2),s1 int3: - mov -24(%rax),%r13 + mov -3*8(itmp2),s2 int2: - mov -16(%rax),%r14 + mov -2*8(itmp2),s3 int1: - mov -8(%rax),%r15 + mov -1*8(itmp2),s4 - shl $3,%edx /* multiply by 8 bytes */ - sub %rdx,%rax + shl $3,a0l /* multiply by 8 bytes */ + sub a0,itmp2 noint: - mov FltSave(%r11),%edx /* %edx = saved flt register count*/ - test %edx,%edx - je noflt - - cmpl $1,%edx - je flt1 - cmpl $2,%edx - je flt2 - cmpl $3,%edx - je flt3 - cmpl $4,%edx - je flt4 - cmpl $5,%edx - je flt5 - cmpl $6,%edx - je flt7 - cmpl $7,%edx - je flt7 - - movq -64(%rax),%xmm8 -flt7: - movq -56(%rax),%xmm9 -flt6: - movq -48(%rax),%xmm10 -flt5: - movq -40(%rax),%xmm11 +#if 0 + mov FltSave(itmp3),a0l /* a0l = saved flt register count */ + test a0l,a0l + je noflt + + cmpl $1,a0l + je flt1 + cmpl $2,a0l + je flt2 + cmpl $3,a0l + je flt3 + cmpl $4,a0l + je flt4 + + movq -5*8(itmp2),%xmm11 flt4: - movq -32(%rax),%xmm12 + movq -4*8(itmp2),%xmm12 flt3: - movq -24(%rax),%xmm13 + movq -3*8(itmp2),%xmm13 flt2: - movq -16(%rax),%xmm14 + movq -2*8(itmp2),%xmm14 flt1: - movq -8(%rax),%xmm15 + movq -1*8(itmp2),%xmm15 -noflt: - pop %r10 /* the new xpc is return address */ - sub $3,%r10 /* subtract 3 bytes for call */ - - sub $(2*8),%rsp - mov %rcx,0*8(%rsp) - mov %r10,1*8(%rsp) - - mov %r10,%rdi - call codegen_findmethod /* get the new data segment ptr */ - mov %rax,%r11 - - mov 0*8(%rsp),%rcx - mov 1*8(%rsp),%r10 - add $(2*8),%rsp - - mov %rcx,%rax /* restore saved exception pointer*/ +noflt: +#endif + mov FrameSize(itmp3),itmp2l /* get frame size */ + add itmp2,sp /* unwind stack */ - sub $(4*8),%rsp - - mov %rax,0*8(%rsp) /* save exception pointer */ - mov %r10,1*8(%rsp) /* save exception pc */ - mov %r11,2*8(%rsp) /* save data segment pointer */ - - jmp ex_stack_loop + /* exception pointer is still set */ + pop xpc /* the new xpc is return address */ + sub $3,xpc /* subtract 3 bytes for call */ + xor a3,a3 /* prepare a3 for handle_exception */ + + jmp L_asm_handle_exception_stack_loop -/* asm_wrapper_patcher ********************************************************* - XXX +/* asm_abstractmethoderror ***************************************************** - Stack layout: - 32 return address - 24 pointer to virtual java_objectheader - 16 machine code (which is patched back later) - 8 unresolved class/method/field reference - 0 pointer to patcher function + Creates and throws an AbstractMethodError. *******************************************************************************/ -asm_wrapper_patcher: - sub $(17*8),%rsp /* stack frame (16-byte aligned) */ - - 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 %rsp,a0 /* pass stack pointer */ - add $(18*8),a0 /* skip patcher function pointer */ - mov 17*8(%rsp),itmp3 /* get function pointer */ - call *itmp3 /* call the patcher function */ - mov v0,itmp3 /* save return value */ - - 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 */ - - add $((4+17)*8),%rsp /* remove stack frame, keep ra */ - - 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 - push $0 /*padding*/ - 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 -#else - lea _exceptionptr,itmp2 -#endif - 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*/ - add $8,%rsp - - pop xpc /* get and remove return address */ - jmp asm_handle_exception +asm_abstractmethoderror: + sub $8,sp /* keep stack aligned */ + mov sp,a0 /* pass java sp */ + add $2*8,a0 + mov 1*8(sp),a1 /* pass exception address */ + sub $3,a1 + call exceptions_asm_new_abstractmethoderror@PLT + /* exception pointer is return value */ + pop xpc /* dummy pop */ + pop xpc /* get exception address */ + sub $3,xpc /* exception address is ra - 3 */ + jmp L_asm_handle_exception /* asm_builtin_x2x ************************************************************* @@ -916,398 +334,68 @@ L_asm_wrapper_patcher_exception: *******************************************************************************/ asm_builtin_f2i: - sub $(14*8),%rsp + sub $(ARG_CNT*8),sp - SAVE_ARGUMENT_REGISTERS + SAVE_ARGUMENT_REGISTERS(0) - movq %xmm8,%xmm0 - call builtin_f2i + movq ftmp1,fa0 + call builtin_f2i@PLT - RESTORE_ARGUMENT_REGISTERS + RESTORE_ARGUMENT_REGISTERS(0) - add $(14*8),%rsp + add $(ARG_CNT*8),sp ret asm_builtin_f2l: - sub $(14*8),%rsp + sub $(ARG_CNT*8),sp - SAVE_ARGUMENT_REGISTERS + SAVE_ARGUMENT_REGISTERS(0) - movq %xmm8,%xmm0 - call builtin_f2l + movq ftmp1,fa0 + call builtin_f2l@PLT - RESTORE_ARGUMENT_REGISTERS + RESTORE_ARGUMENT_REGISTERS(0) - add $(14*8),%rsp + add $(ARG_CNT*8),sp ret asm_builtin_d2i: - sub $(14*8),%rsp + sub $(ARG_CNT*8),sp - SAVE_ARGUMENT_REGISTERS + SAVE_ARGUMENT_REGISTERS(0) - movq %xmm8,%xmm0 - call builtin_d2i + movq ftmp1,fa0 + call builtin_d2i@PLT - RESTORE_ARGUMENT_REGISTERS + RESTORE_ARGUMENT_REGISTERS(0) - add $(14*8),%rsp + add $(ARG_CNT*8),sp ret asm_builtin_d2l: - sub $(14*8),%rsp + sub $(ARG_CNT*8),sp - SAVE_ARGUMENT_REGISTERS + SAVE_ARGUMENT_REGISTERS(0) - movq %xmm8,%xmm0 - call builtin_d2l + movq ftmp1,fa0 + call builtin_d2l@PLT - RESTORE_ARGUMENT_REGISTERS + RESTORE_ARGUMENT_REGISTERS(0) - add $(14*8),%rsp + add $(ARG_CNT*8),sp ret -/* asm_builtin_arraycheckcast ************************************************** - - Does the cast check and eventually throws an exception. - -*******************************************************************************/ - -asm_builtin_arraycheckcast: - sub $24,%rsp /* keep stack 16-byte aligned */ - mov %rdi,(%rsp) /* save object pointer */ - call builtin_arraycheckcast - test %rax,%rax /* if (false) throw exception */ - je nb_carray_throw - mov (%rsp),%rax /* return object pointer */ - add $24,%rsp /* free stack space */ - ret - -nb_carray_throw: - /*call new_classcastexception*/ - add $24,%rsp - pop xpc /* delete return address */ - sub $3,xpc /* faulting address is ra - 3 */ - mov string_java_lang_ClassCastException,xptr - jmp asm_throw_and_handle_exception - - -/* asm_builtin_aastore ********************************************************* - - Checks if the object can be stored in the given array and stores the - address if it's possible. This function can also throw some exceptions. - -*******************************************************************************/ - -asm_builtin_aastore: - sub $(3*8),%rsp /* allocate stack space */ - test %rdi,%rdi /* if null pointer throw exception */ - je nb_aastore_null - - movl offarraysize(%rdi),%eax /* load size */ - cmpl %eax,%esi /* do bound check */ - jae nb_aastore_bound /* if out of bounds throw exception */ - - shl $3,%rsi /* index * 8 */ - mov %rdi,%r10 - add %rsi,%r10 /* add index * 8 to arrayref */ - - mov %r10,(%rsp) /* save store position */ - mov %rdx,8(%rsp) /* save object */ - - mov %rdx,%rsi /* object is second argument */ - call builtin_canstore /* builtin_canstore(arrayref,object) */ - test %rax,%rax /* if (false) throw exception */ - je nb_aastore_throw - - mov (%rsp),%r10 /* restore store position */ - mov 8(%rsp),%rdx /* restore object */ - mov %rdx,offobjarrdata(%r10)/* store objectptr in array */ - add $(3*8),%rsp /* free stack space */ - ret - -nb_aastore_null: - add $24,%rsp - pop xpc /* delete return address from stack */ - sub $3,xpc /* faulting address is return adress - 3 */ - mov string_java_lang_NullPointerException,xptr - jmp asm_throw_and_handle_exception - -nb_aastore_bound: - add $24,%rsp - push $0 /*directly below return address*/ - push $0 /*internal*/ - push $0 /*padding*/ - mov %rsi,itmp1 - - call asm_prepare_native_stackinfo +/* disable exec-stacks ********************************************************/ - mov itmp1,%rdi /* move index into a0 */ - call new_arrayindexoutofboundsexception - - call asm_remove_native_stackinfo - - pop xpc /* just remove one quadword */ - pop xpc /* delete return address */ - sub $3,xpc /* faulting address is return adress - 3 */ - jmp asm_handle_exception - -nb_aastore_throw: - /*call new_arraystoreexception*/ - add $24,%rsp - pop xpc /* delete return address */ - sub $3,xpc /* faulting address is return adress - 3 */ - mov string_java_lang_ArrayStoreException,xptr - jmp asm_throw_and_handle_exception - - -/******************* function asm_initialize_thread_stack ********************** -* * -* initialized a thread stack * -* (to)->restorePoint = asm_initialize_thread_stack((u1*)(func), (to)->stackEnd)* -* * -*******************************************************************************/ - -asm_initialize_thread_stack: - sub $(7*8),%rsi - - xor %r10,%r10 - mov %r10,0*8(%rsi) - mov %r10,1*8(%rsi) - mov %r10,2*8(%rsi) - mov %r10,3*8(%rsi) - mov %r10,4*8(%rsi) - mov %r10,5*8(%rsi) - - mov %rdi,6*8(%rsi) /* save (u1*) (func) */ - mov %rsi,%rax /* return restorepoint in %rax */ - ret - - -/******************* function asm_perform_threadswitch ************************* -* * -* void asm_perform_threadswitch (u1 **from, u1 **to, u1 **stackTop); * -* * -* performs a threadswitch * -* * -*******************************************************************************/ - -asm_perform_threadswitch: - sub $(7*8),%rsp /* allocate stack frame */ - - mov %rbx,0*8(%rsp) - mov %rbp,1*8(%rsp) - mov %r12,2*8(%rsp) - mov %r13,3*8(%rsp) - mov %r14,4*8(%rsp) - mov %r15,5*8(%rsp) - - mov 7*8(%rsp),%rax /* save current return address */ - mov %rax,6*8(%rsp) - - mov %rsp,(%rdi) /* first argument **from */ - mov %rsp,(%rdx) /* third argument **stackTop */ - - mov (%rsi),%rsp /* load new stack pointer */ - - mov 0*8(%rsp),%rbx - mov 1*8(%rsp),%rbp - mov 2*8(%rsp),%r12 - mov 3*8(%rsp),%r13 - mov 4*8(%rsp),%r14 - mov 5*8(%rsp),%r15 - - mov 6*8(%rsp),%rax /* restore return address */ - add $(7*8),%rsp /* free stack frame */ - mov %rax,(%rsp) - ret - - -/********************* function asm_switchstackandcall ************************* -* * -* int asm_switchstackandcall (void *stack, void *func, void **stacktopsave, * -* void *p); * -* * -* Switches to a new stack, calls a function and switches back. * -* a0 (%rdi) new stack pointer * -* a1 (%rsi) function pointer * -* a2 (%rdx) pointer to variable where stack top should be stored * -* a3 (%rcx) pointer to user data, is passed to the function * -* * -*******************************************************************************/ - -asm_switchstackandcall: - sub $(1*8),%rsp /* keep stack 16-byte aligned */ - sub $16,%rdi /* allocate new stack */ - - mov 8(%rsp),%rax /* save return address on new stack */ - mov %rax,(%rdi) - mov %rsp,8(%rdi) /* save old stack pointer on new stack*/ - mov %rsp,(%rdx) /* save old stack pointer to variable */ - - mov %rdi,%rsp /* switch to new stack */ - - mov %rcx,%rdi /* pass pointer */ - call *%rsi /* and call function */ - - mov (%rsp),%r10 /* load return address */ - mov 8(%rsp),%rsp /* switch to old stack */ - add $(1*8),%rsp /* free stack space */ - mov %r10,(%rsp) /* write return adress */ - ret - - - - -/************************ function asm_prepare_native_stackinfo **************************** -* * -* creates a stackfame for the begin of a native function (either builtin or not ) * -* expected stack at begin of function * -* .... * -* address of the jit call which invokes the native * -* begin address of stack frame of the java method * -* method pointer or 0 (for built ins) * -* padding for stackframesize 16*n+8 * -* return address * -* * -* at end of function: * -* ... * -* address of the jit call which invokes the native * -* begin address of stack frame of the java method * -* method pointer or 0 (for built ins) * -* address of thread specific top of native list * -* old value of thread specific head * -* padding for stackframesize 16*n+8) * -* return address * -* * -* .... * -* This thing is less efficient than the original #define (callerside) * -* destroyes REG_ITMP2, keeps REG_ITMP1 * -********************************************************************************************/ - - -asm_prepare_native_stackinfo: - sub $16,%rsp /*space for the 2 new pointers*/ - mov 16(%rsp),itmp2 - mov itmp2,(%rsp) - push itmp1 - call builtin_asm_get_stackframeinfo - - mov itmp1, 32(%rsp) - mov (itmp1),itmp2 - mov itmp2,24(%rsp) - mov %rsp,itmp2 - add $24,itmp2 - mov itmp2,(itmp1) - pop itmp1 - ret - - - -/************************ function asm_remove _native_stackinfo ******************************************* -* * -* removes a stackfame for the begin of a native function (either builtin or not) * -* expected stack at begin of function * -* address of the jit call which invokes the native * -* begin address of stack frame of the java method * -* method pointer or 0 (for built ins) * -* address thread specific top of native list * -* old value of thread specific head * -* padding * -* return address * -* * -* at end of function: * -* .... * -* return adresss of the jit call which invokes the native * -* padding * -* return address * -* * -* * -* * -* This thing is less efficient than the original #define (callerside), uses ITMP2,uses ITMP3,keeps ITMP1 * -***********************************************************************************************************/ - -asm_remove_native_stackinfo: - mov 16(%rsp),itmp2 - mov 24(%rsp),itmp3 - mov itmp2,(itmp3) - pop itmp3 - add $32,%rsp - push itmp3 - ret - - - -asm_throw_and_handle_exception: - push xpc /* the pushed XPC is directly below the java frame*/ - push $0 - push $0 - push $0 /*padding*/ - call asm_prepare_native_stackinfo /* be aware of the stack effect and calling convention explained above*/ - mov itmp1,%rdi - - call new_exception - - call asm_remove_native_stackinfo /* be aware of the stack effect and calling convention explained above*/ - - pop xpc - pop xpc - - jmp asm_handle_exception - ret /*should never be reached */ - - -asm_throw_and_handle_hardware_arithmetic_exception: - - push xpc - push $0 /* the pushed XPC is directly below the java frame*/ - push $0 - push $0 /*padding*/ - call asm_prepare_native_stackinfo /* be aware of the stack effect and calling convention explained above*/ - - mov string_java_lang_ArithmeticException_message,%rsi - mov string_java_lang_ArithmeticException,%rdi - - call new_exception_message - - call asm_remove_native_stackinfo /* be aware of the stack effect and calling convention explained above*/ - pop xpc - pop xpc - - jmp asm_handle_exception - ret /*should never be reached */ - - -asm_getclassvalues_atomic: -_crit_restart2: -_crit_begin2: - movl offbaseval(a0),itmp1l - movl offdiffval(a0),itmp2l - movl offbaseval(a1),itmp3l -_crit_end2: - movl itmp1l,offcast_super_baseval(a2) - movl itmp2l,offcast_super_diffval(a2) - movl itmp3l,offcast_sub_baseval(a2) - ret - - .data - -asm_criticalsections: -#if defined(USE_THREADS) && defined(NATIVE_THREADS) - .quad _crit_begin1 - .quad _crit_end1 - .quad _crit_restart1 - .quad _crit_begin2 - .quad _crit_end2 - .quad _crit_restart2 +#if defined(__linux__) && defined(__ELF__) + .section .note.GNU-stack,"",%progbits #endif - .quad 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 @@ -1319,4 +407,5 @@ asm_criticalsections: * c-basic-offset: 4 * tab-width: 4 * End: + * vim:noexpandtab:sw=4:ts=4: */