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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "asm_support_x86.S"
// For x86, the CFA is esp+4, the address above the pushed return address on the stack.
/*
* Macro that sets up the callee save frame to conform with
* Runtime::CreateCalleeSaveMethod(kSaveAll)
*/
MACRO0(SETUP_SAVE_ALL_CALLEE_SAVE_FRAME)
PUSH edi // Save callee saves (ebx is saved/restored by the upcall)
PUSH esi
PUSH ebp
subl MACRO_LITERAL(16), %esp // Grow stack by 4 words, bottom word will hold Method*
CFI_ADJUST_CFA_OFFSET(16)
// Ugly compile-time check, but we only have the preprocessor.
// Last +4: implicit return address pushed on stack when caller made call.
#if (FRAME_SIZE_SAVE_ALL_CALLEE_SAVE != 3*4 + 16 + 4)
#error "SAVE_ALL_CALLEE_SAVE_FRAME(X86) size not as expected."
#endif
END_MACRO
/*
* Macro that sets up the callee save frame to conform with
* Runtime::CreateCalleeSaveMethod(kRefsOnly)
*/
MACRO0(SETUP_REF_ONLY_CALLEE_SAVE_FRAME)
PUSH edi // Save callee saves (ebx is saved/restored by the upcall)
PUSH esi
PUSH ebp
subl MACRO_LITERAL(16), %esp // Grow stack by 4 words, bottom word will hold Method*
CFI_ADJUST_CFA_OFFSET(16)
// Ugly compile-time check, but we only have the preprocessor.
// Last +4: implicit return address pushed on stack when caller made call.
#if (FRAME_SIZE_REFS_ONLY_CALLEE_SAVE != 3*4 + 16 + 4)
#error "REFS_ONLY_CALLEE_SAVE_FRAME(X86) size not as expected."
#endif
END_MACRO
MACRO0(RESTORE_REF_ONLY_CALLEE_SAVE_FRAME)
addl MACRO_LITERAL(16), %esp // Unwind stack up to saved values
CFI_ADJUST_CFA_OFFSET(-16)
POP ebp // Restore callee saves (ebx is saved/restored by the upcall)
POP esi
POP edi
END_MACRO
/*
* Macro that sets up the callee save frame to conform with
* Runtime::CreateCalleeSaveMethod(kRefsAndArgs)
*/
MACRO0(SETUP_REF_AND_ARGS_CALLEE_SAVE_FRAME)
PUSH edi // Save callee saves
PUSH esi
PUSH ebp
PUSH ebx // Save args
PUSH edx
PUSH ecx
PUSH eax // Align stack, eax will be clobbered by Method*
// Ugly compile-time check, but we only have the preprocessor.
// Last +4: implicit return address pushed on stack when caller made call.
#if (FRAME_SIZE_REFS_AND_ARGS_CALLEE_SAVE != 7*4 + 4)
#error "REFS_AND_ARGS_CALLEE_SAVE_FRAME(X86) size not as expected."
#endif
END_MACRO
MACRO0(RESTORE_REF_AND_ARGS_CALLEE_SAVE_FRAME)
addl MACRO_LITERAL(4), %esp // Remove padding
CFI_ADJUST_CFA_OFFSET(-4)
POP ecx // Restore args except eax
POP edx
POP ebx
POP ebp // Restore callee saves
POP esi
POP edi
END_MACRO
/*
* Macro that set calls through to artDeliverPendingExceptionFromCode, where the pending
* exception is Thread::Current()->exception_.
*/
MACRO0(DELIVER_PENDING_EXCEPTION)
SETUP_SAVE_ALL_CALLEE_SAVE_FRAME // save callee saves for throw
mov %esp, %ecx
// Outgoing argument set up
subl MACRO_LITERAL(8), %esp // Alignment padding
CFI_ADJUST_CFA_OFFSET(8)
PUSH ecx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
SETUP_GOT_NOSAVE // clobbers ebx (harmless here)
call PLT_SYMBOL(artDeliverPendingExceptionFromCode) // artDeliverPendingExceptionFromCode(Thread*, SP)
int3 // unreached
END_MACRO
MACRO2(NO_ARG_RUNTIME_EXCEPTION, c_name, cxx_name)
DEFINE_FUNCTION RAW_VAR(c_name, 0)
SETUP_SAVE_ALL_CALLEE_SAVE_FRAME // save all registers as basis for long jump context
mov %esp, %ecx
// Outgoing argument set up
subl MACRO_LITERAL(8), %esp // alignment padding
CFI_ADJUST_CFA_OFFSET(8)
PUSH ecx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
SETUP_GOT_NOSAVE // clobbers ebx (harmless here)
call PLT_VAR(cxx_name, 1) // cxx_name(Thread*, SP)
int3 // unreached
END_FUNCTION RAW_VAR(c_name, 0)
END_MACRO
MACRO2(ONE_ARG_RUNTIME_EXCEPTION, c_name, cxx_name)
DEFINE_FUNCTION RAW_VAR(c_name, 0)
SETUP_SAVE_ALL_CALLEE_SAVE_FRAME // save all registers as basis for long jump context
mov %esp, %ecx
// Outgoing argument set up
PUSH eax // alignment padding
PUSH ecx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH eax // pass arg1
SETUP_GOT_NOSAVE // clobbers ebx (harmless here)
call PLT_VAR(cxx_name, 1) // cxx_name(arg1, Thread*, SP)
int3 // unreached
END_FUNCTION RAW_VAR(c_name, 0)
END_MACRO
MACRO2(TWO_ARG_RUNTIME_EXCEPTION, c_name, cxx_name)
DEFINE_FUNCTION RAW_VAR(c_name, 0)
SETUP_SAVE_ALL_CALLEE_SAVE_FRAME // save all registers as basis for long jump context
mov %esp, %edx
// Outgoing argument set up
PUSH edx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH ecx // pass arg2
PUSH eax // pass arg1
SETUP_GOT_NOSAVE // clobbers ebx (harmless here)
call PLT_VAR(cxx_name, 1) // cxx_name(arg1, arg2, Thread*, SP)
int3 // unreached
END_FUNCTION RAW_VAR(c_name, 0)
END_MACRO
/*
* Called by managed code to create and deliver a NullPointerException.
*/
ASM_HIDDEN art_quick_throw_null_pointer_exception
NO_ARG_RUNTIME_EXCEPTION art_quick_throw_null_pointer_exception, artThrowNullPointerExceptionFromCode
/*
* Called by managed code to create and deliver an ArithmeticException.
*/
NO_ARG_RUNTIME_EXCEPTION art_quick_throw_div_zero, artThrowDivZeroFromCode
/*
* Called by managed code to create and deliver a StackOverflowError.
*/
NO_ARG_RUNTIME_EXCEPTION art_quick_throw_stack_overflow, artThrowStackOverflowFromCode
/*
* Called by managed code, saves callee saves and then calls artThrowException
* that will place a mock Method* at the bottom of the stack. Arg1 holds the exception.
*/
ONE_ARG_RUNTIME_EXCEPTION art_quick_deliver_exception, artDeliverExceptionFromCode
/*
* Called by managed code to create and deliver a NoSuchMethodError.
*/
ONE_ARG_RUNTIME_EXCEPTION art_quick_throw_no_such_method, artThrowNoSuchMethodFromCode
/*
* Called by managed code to create and deliver an ArrayIndexOutOfBoundsException. Arg1 holds
* index, arg2 holds limit.
*/
ASM_HIDDEN art_quick_throw_array_bounds
TWO_ARG_RUNTIME_EXCEPTION art_quick_throw_array_bounds, artThrowArrayBoundsFromCode
/*
* All generated callsites for interface invokes and invocation slow paths will load arguments
* as usual - except instead of loading arg0/r0 with the target Method*, arg0/r0 will contain
* the method_idx. This wrapper will save arg1-arg3, load the caller's Method*, align the
* stack and call the appropriate C helper.
* NOTE: "this" is first visible argument of the target, and so can be found in arg1/r1.
*
* The helper will attempt to locate the target and return a 64-bit result in r0/r1 consisting
* of the target Method* in r0 and method->code_ in r1.
*
* If unsuccessful, the helper will return NULL/NULL. There will bea pending exception in the
* thread and we branch to another stub to deliver it.
*
* On success this wrapper will restore arguments and *jump* to the target, leaving the lr
* pointing back to the original caller.
*/
MACRO2(INVOKE_TRAMPOLINE, c_name, cxx_name)
DEFINE_FUNCTION RAW_VAR(c_name, 0)
// Set up the callee save frame to conform with Runtime::CreateCalleeSaveMethod(kRefsAndArgs)
// return address
PUSH edi
PUSH esi
PUSH ebp
PUSH ebx // Save args
PUSH edx
PUSH ecx
PUSH eax // <-- callee save Method* to go here
movl %esp, %edx // remember SP
// Outgoing argument set up
SETUP_GOT_NOSAVE
subl MACRO_LITERAL(12), %esp // alignment padding
CFI_ADJUST_CFA_OFFSET(12)
PUSH edx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
pushl 32(%edx) // pass caller Method*
CFI_ADJUST_CFA_OFFSET(4)
PUSH ecx // pass arg2
PUSH eax // pass arg1
call PLT_VAR(cxx_name, 1) // cxx_name(arg1, arg2, arg3, Thread*, SP)
movl %edx, %edi // save code pointer in EDI
addl MACRO_LITERAL(36), %esp // Pop arguments skip eax
CFI_ADJUST_CFA_OFFSET(-36)
POP ecx // Restore args except eax
POP edx
POP ebx
POP ebp // Restore callee saves
POP esi
// Swap EDI callee save with code pointer.
xchgl %edi, (%esp)
testl %eax, %eax // Branch forward if exception pending.
jz 1f
// Tail call to intended method.
ret
1:
addl MACRO_LITERAL(4), %esp // Pop code pointer off stack
CFI_ADJUST_CFA_OFFSET(-4)
DELIVER_PENDING_EXCEPTION
END_FUNCTION RAW_VAR(c_name, 0)
END_MACRO
ASM_HIDDEN art_quick_invoke_interface_trampoline
INVOKE_TRAMPOLINE art_quick_invoke_interface_trampoline, artInvokeInterfaceTrampoline
INVOKE_TRAMPOLINE art_quick_invoke_interface_trampoline_with_access_check, artInvokeInterfaceTrampolineWithAccessCheck
INVOKE_TRAMPOLINE art_quick_invoke_static_trampoline_with_access_check, artInvokeStaticTrampolineWithAccessCheck
INVOKE_TRAMPOLINE art_quick_invoke_direct_trampoline_with_access_check, artInvokeDirectTrampolineWithAccessCheck
INVOKE_TRAMPOLINE art_quick_invoke_super_trampoline_with_access_check, artInvokeSuperTrampolineWithAccessCheck
INVOKE_TRAMPOLINE art_quick_invoke_virtual_trampoline_with_access_check, artInvokeVirtualTrampolineWithAccessCheck
/*
* Quick invocation stub.
* On entry:
* [sp] = return address
* [sp + 4] = method pointer
* [sp + 8] = argument array or NULL for no argument methods
* [sp + 12] = size of argument array in bytes
* [sp + 16] = (managed) thread pointer
* [sp + 20] = JValue* result
* [sp + 24] = shorty
*/
DEFINE_FUNCTION art_quick_invoke_stub
PUSH ebp // save ebp
PUSH ebx // save ebx
mov %esp, %ebp // copy value of stack pointer into base pointer
CFI_DEF_CFA_REGISTER(ebp)
mov 20(%ebp), %ebx // get arg array size
addl LITERAL(28), %ebx // reserve space for return addr, method*, ebx, and ebp in frame
andl LITERAL(0xFFFFFFF0), %ebx // align frame size to 16 bytes
subl LITERAL(12), %ebx // remove space for return address, ebx, and ebp
subl %ebx, %esp // reserve stack space for argument array
SETUP_GOT_NOSAVE // clobbers ebx (harmless here)
lea 4(%esp), %eax // use stack pointer + method ptr as dest for memcpy
pushl 20(%ebp) // push size of region to memcpy
pushl 16(%ebp) // push arg array as source of memcpy
pushl %eax // push stack pointer as destination of memcpy
call PLT_SYMBOL(memcpy) // (void*, const void*, size_t)
addl LITERAL(12), %esp // pop arguments to memcpy
movl LITERAL(0), (%esp) // store NULL for method*
mov 12(%ebp), %eax // move method pointer into eax
mov 4(%esp), %ecx // copy arg1 into ecx
mov 8(%esp), %edx // copy arg2 into edx
mov 12(%esp), %ebx // copy arg3 into ebx
call *METHOD_QUICK_CODE_OFFSET(%eax) // call the method
mov %ebp, %esp // restore stack pointer
CFI_DEF_CFA_REGISTER(esp)
POP ebx // pop ebx
POP ebp // pop ebp
mov 20(%esp), %ecx // get result pointer
mov %eax, (%ecx) // store the result assuming its a long, int or Object*
mov %edx, 4(%ecx) // store the other half of the result
mov 24(%esp), %edx // get the shorty
cmpb LITERAL(68), (%edx) // test if result type char == 'D'
je .Lreturn_double_quick
cmpb LITERAL(70), (%edx) // test if result type char == 'F'
je .Lreturn_float_quick
ret
.Lreturn_double_quick:
movsd %xmm0, (%ecx) // store the floating point result
ret
.Lreturn_float_quick:
movss %xmm0, (%ecx) // store the floating point result
ret
END_FUNCTION art_quick_invoke_stub
MACRO3(NO_ARG_DOWNCALL, c_name, cxx_name, return_macro)
DEFINE_FUNCTION RAW_VAR(c_name, 0)
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %edx // remember SP
SETUP_GOT_NOSAVE // clobbers ebx (harmless here)
// Outgoing argument set up
subl MACRO_LITERAL(8), %esp // push padding
CFI_ADJUST_CFA_OFFSET(8)
PUSH edx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
call PLT_VAR(cxx_name, 1) // cxx_name(Thread*, SP)
addl MACRO_LITERAL(16), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-16)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
CALL_MACRO(return_macro, 2) // return or deliver exception
END_FUNCTION RAW_VAR(c_name, 0)
END_MACRO
MACRO3(ONE_ARG_DOWNCALL, c_name, cxx_name, return_macro)
DEFINE_FUNCTION RAW_VAR(c_name, 0)
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %edx // remember SP
SETUP_GOT_NOSAVE // clobbers EBX
// Outgoing argument set up
PUSH eax // push padding
PUSH edx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH eax // pass arg1
call PLT_VAR(cxx_name, 1) // cxx_name(arg1, Thread*, SP)
addl MACRO_LITERAL(16), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-16)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
CALL_MACRO(return_macro, 2) // return or deliver exception
END_FUNCTION RAW_VAR(c_name, 0)
END_MACRO
MACRO3(TWO_ARG_DOWNCALL, c_name, cxx_name, return_macro)
DEFINE_FUNCTION RAW_VAR(c_name, 0)
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %edx // remember SP
SETUP_GOT_NOSAVE // clobbers EBX
// Outgoing argument set up
PUSH edx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH ecx // pass arg2
PUSH eax // pass arg1
call PLT_VAR(cxx_name, 1) // cxx_name(arg1, arg2, Thread*, SP)
addl MACRO_LITERAL(16), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-16)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
CALL_MACRO(return_macro, 2) // return or deliver exception
END_FUNCTION RAW_VAR(c_name, 0)
END_MACRO
MACRO3(THREE_ARG_DOWNCALL, c_name, cxx_name, return_macro)
DEFINE_FUNCTION RAW_VAR(c_name, 0)
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %ebx // remember SP
// Outgoing argument set up
subl MACRO_LITERAL(12), %esp // alignment padding
CFI_ADJUST_CFA_OFFSET(12)
PUSH ebx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH edx // pass arg3
PUSH ecx // pass arg2
PUSH eax // pass arg1
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_VAR(cxx_name, 1) // cxx_name(arg1, arg2, arg3, Thread*, SP)
addl MACRO_LITERAL(32), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-32)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
CALL_MACRO(return_macro, 2) // return or deliver exception
END_FUNCTION RAW_VAR(c_name, 0)
END_MACRO
MACRO0(RETURN_IF_RESULT_IS_NON_ZERO)
testl %eax, %eax // eax == 0 ?
jz 1f // if eax == 0 goto 1
ret // return
1: // deliver exception on current thread
DELIVER_PENDING_EXCEPTION
END_MACRO
MACRO0(RETURN_IF_EAX_ZERO)
testl %eax, %eax // eax == 0 ?
jnz 1f // if eax != 0 goto 1
ret // return
1: // deliver exception on current thread
DELIVER_PENDING_EXCEPTION
END_MACRO
MACRO0(RETURN_OR_DELIVER_PENDING_EXCEPTION)
mov %fs:THREAD_EXCEPTION_OFFSET, %ebx // get exception field
testl %ebx, %ebx // ebx == 0 ?
jnz 1f // if ebx != 0 goto 1
ret // return
1: // deliver exception on current thread
DELIVER_PENDING_EXCEPTION
END_MACRO
// Generate the allocation entrypoints for each allocator.
// TODO: use arch/quick_alloc_entrypoints.S. Currently we don't as we need to use concatenation
// macros to work around differences between OS/X's as and binutils as (OS/X lacks named arguments
// to macros and the VAR macro won't concatenate arguments properly), this also breaks having
// multi-line macros that use each other (hence using 1 macro per newline below).
#define GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(c_suffix, cxx_suffix) \
TWO_ARG_DOWNCALL art_quick_alloc_object ## c_suffix, artAllocObjectFromCode ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO
#define GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(c_suffix, cxx_suffix) \
TWO_ARG_DOWNCALL art_quick_alloc_object_resolved ## c_suffix, artAllocObjectFromCodeResolved ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO
#define GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(c_suffix, cxx_suffix) \
TWO_ARG_DOWNCALL art_quick_alloc_object_initialized ## c_suffix, artAllocObjectFromCodeInitialized ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO
#define GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(c_suffix, cxx_suffix) \
TWO_ARG_DOWNCALL art_quick_alloc_object_with_access_check ## c_suffix, artAllocObjectFromCodeWithAccessCheck ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO
#define GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(c_suffix, cxx_suffix) \
THREE_ARG_DOWNCALL art_quick_alloc_array ## c_suffix, artAllocArrayFromCode ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO
#define GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(c_suffix, cxx_suffix) \
THREE_ARG_DOWNCALL art_quick_alloc_array_resolved ## c_suffix, artAllocArrayFromCodeResolved ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO
#define GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(c_suffix, cxx_suffix) \
THREE_ARG_DOWNCALL art_quick_alloc_array_with_access_check ## c_suffix, artAllocArrayFromCodeWithAccessCheck ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO
#define GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(c_suffix, cxx_suffix) \
THREE_ARG_DOWNCALL art_quick_check_and_alloc_array ## c_suffix, artCheckAndAllocArrayFromCode ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO
#define GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(c_suffix, cxx_suffix) \
THREE_ARG_DOWNCALL art_quick_check_and_alloc_array_with_access_check ## c_suffix, artCheckAndAllocArrayFromCodeWithAccessCheck ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_dlmalloc, DlMalloc)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_dlmalloc, DlMalloc)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_dlmalloc, DlMalloc)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_dlmalloc, DlMalloc)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_dlmalloc, DlMalloc)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_dlmalloc, DlMalloc)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_dlmalloc, DlMalloc)
GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_dlmalloc, DlMalloc)
GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_dlmalloc, DlMalloc)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_dlmalloc_instrumented, DlMallocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_dlmalloc_instrumented, DlMallocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_dlmalloc_instrumented, DlMallocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_dlmalloc_instrumented, DlMallocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_dlmalloc_instrumented, DlMallocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_dlmalloc_instrumented, DlMallocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_dlmalloc_instrumented, DlMallocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_dlmalloc_instrumented, DlMallocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_dlmalloc_instrumented, DlMallocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_rosalloc, RosAlloc)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_rosalloc, RosAlloc)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_rosalloc, RosAlloc)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_rosalloc, RosAlloc)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_rosalloc, RosAlloc)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_rosalloc, RosAlloc)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_rosalloc, RosAlloc)
GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_rosalloc, RosAlloc)
GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_rosalloc, RosAlloc)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_rosalloc_instrumented, RosAllocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_rosalloc_instrumented, RosAllocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_rosalloc_instrumented, RosAllocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_rosalloc_instrumented, RosAllocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_rosalloc_instrumented, RosAllocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_rosalloc_instrumented, RosAllocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_rosalloc_instrumented, RosAllocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_rosalloc_instrumented, RosAllocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_rosalloc_instrumented, RosAllocInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_bump_pointer, BumpPointer)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_bump_pointer, BumpPointer)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_bump_pointer, BumpPointer)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_bump_pointer, BumpPointer)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_bump_pointer, BumpPointer)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_bump_pointer, BumpPointer)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_bump_pointer, BumpPointer)
GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_bump_pointer, BumpPointer)
GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_bump_pointer, BumpPointer)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_bump_pointer_instrumented, BumpPointerInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_bump_pointer_instrumented, BumpPointerInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_bump_pointer_instrumented, BumpPointerInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_bump_pointer_instrumented, BumpPointerInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_bump_pointer_instrumented, BumpPointerInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_bump_pointer_instrumented, BumpPointerInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_bump_pointer_instrumented, BumpPointerInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_bump_pointer_instrumented, BumpPointerInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_bump_pointer_instrumented, BumpPointerInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_tlab, TLAB)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_tlab, TLAB)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_tlab, TLAB)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_tlab, TLAB)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_tlab, TLAB)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_tlab, TLAB)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_tlab, TLAB)
GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_tlab, TLAB)
GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_tlab, TLAB)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_tlab_instrumented, TLABInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_tlab_instrumented, TLABInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_tlab_instrumented, TLABInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_tlab_instrumented, TLABInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_tlab_instrumented, TLABInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_tlab_instrumented, TLABInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_tlab_instrumented, TLABInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_tlab_instrumented, TLABInstrumented)
GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_tlab_instrumented, TLABInstrumented)
TWO_ARG_DOWNCALL art_quick_resolve_string, artResolveStringFromCode, RETURN_IF_RESULT_IS_NON_ZERO
TWO_ARG_DOWNCALL art_quick_initialize_static_storage, artInitializeStaticStorageFromCode, RETURN_IF_RESULT_IS_NON_ZERO
TWO_ARG_DOWNCALL art_quick_initialize_type, artInitializeTypeFromCode, RETURN_IF_RESULT_IS_NON_ZERO
TWO_ARG_DOWNCALL art_quick_initialize_type_and_verify_access, artInitializeTypeAndVerifyAccessFromCode, RETURN_IF_RESULT_IS_NON_ZERO
TWO_ARG_DOWNCALL art_quick_handle_fill_data, artHandleFillArrayDataFromCode, RETURN_IF_EAX_ZERO
DEFINE_FUNCTION art_quick_lock_object
testl %eax, %eax // null check object/eax
jz .Lslow_lock
.Lretry_lock:
movl LOCK_WORD_OFFSET(%eax), %ecx // ecx := lock word
test LITERAL(0xC0000000), %ecx // test the 2 high bits.
jne .Lslow_lock // slow path if either of the two high bits are set.
movl %fs:THREAD_ID_OFFSET, %edx // edx := thread id
test %ecx, %ecx
jnz .Lalready_thin // lock word contains a thin lock
// unlocked case - %edx holds thread id with count of 0
movl %eax, %ecx // remember object in case of retry
xor %eax, %eax // eax == 0 for comparison with lock word in cmpxchg
lock cmpxchg %edx, LOCK_WORD_OFFSET(%ecx)
jnz .Lcmpxchg_fail // cmpxchg failed retry
ret
.Lcmpxchg_fail:
movl %ecx, %eax // restore eax
jmp .Lretry_lock
.Lalready_thin:
cmpw %cx, %dx // do we hold the lock already?
jne .Lslow_lock
addl LITERAL(65536), %ecx // increment recursion count
test LITERAL(0xC0000000), %ecx // overflowed if either of top two bits are set
jne .Lslow_lock // count overflowed so go slow
movl %ecx, LOCK_WORD_OFFSET(%eax) // update lockword, cmpxchg not necessary as we hold lock
ret
.Lslow_lock:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %edx // remember SP
SETUP_GOT_NOSAVE // clobbers EBX
// Outgoing argument set up
PUSH eax // push padding
PUSH edx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH eax // pass object
call PLT_SYMBOL(artLockObjectFromCode) // artLockObjectFromCode(object, Thread*, SP)
addl LITERAL(16), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-16)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
RETURN_IF_EAX_ZERO
END_FUNCTION art_quick_lock_object
DEFINE_FUNCTION art_quick_unlock_object
testl %eax, %eax // null check object/eax
jz .Lslow_unlock
movl LOCK_WORD_OFFSET(%eax), %ecx // ecx := lock word
movl %fs:THREAD_ID_OFFSET, %edx // edx := thread id
test LITERAL(0xC0000000), %ecx
jnz .Lslow_unlock // lock word contains a monitor
cmpw %cx, %dx // does the thread id match?
jne .Lslow_unlock
cmpl LITERAL(65536), %ecx
jae .Lrecursive_thin_unlock
movl LITERAL(0), LOCK_WORD_OFFSET(%eax)
ret
.Lrecursive_thin_unlock:
subl LITERAL(65536), %ecx
mov %ecx, LOCK_WORD_OFFSET(%eax)
ret
.Lslow_unlock:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %edx // remember SP
SETUP_GOT_NOSAVE // clobbers EBX
// Outgoing argument set up
PUSH eax // push padding
PUSH edx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH eax // pass object
call PLT_SYMBOL(artUnlockObjectFromCode) // artUnlockObjectFromCode(object, Thread*, SP)
addl LITERAL(16), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-16)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
RETURN_IF_EAX_ZERO
END_FUNCTION art_quick_unlock_object
DEFINE_FUNCTION art_quick_is_assignable
SETUP_GOT_NOSAVE // clobbers EBX
PUSH eax // alignment padding
PUSH ecx // pass arg2 - obj->klass
PUSH eax // pass arg1 - checked class
call PLT_SYMBOL(artIsAssignableFromCode) // (Class* klass, Class* ref_klass)
addl LITERAL(12), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-12)
ret
END_FUNCTION art_quick_is_assignable
DEFINE_FUNCTION art_quick_check_cast
SETUP_GOT_NOSAVE // clobbers EBX
PUSH eax // alignment padding
PUSH ecx // pass arg2 - obj->klass
PUSH eax // pass arg1 - checked class
call PLT_SYMBOL(artIsAssignableFromCode) // (Class* klass, Class* ref_klass)
testl %eax, %eax
jz 1f // jump forward if not assignable
addl LITERAL(12), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-12)
ret
1:
POP eax // pop arguments
POP ecx
addl LITERAL(4), %esp
CFI_ADJUST_CFA_OFFSET(-12)
SETUP_SAVE_ALL_CALLEE_SAVE_FRAME // save all registers as basis for long jump context
mov %esp, %edx
// Outgoing argument set up
PUSH edx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH ecx // pass arg2
PUSH eax // pass arg1
call PLT_SYMBOL(artThrowClassCastException) // (Class* a, Class* b, Thread*, SP)
int3 // unreached
END_FUNCTION art_quick_check_cast
/*
* Entry from managed code for array put operations of objects where the value being stored
* needs to be checked for compatibility.
* eax = array, ecx = index, edx = value
*/
DEFINE_FUNCTION art_quick_aput_obj_with_null_and_bound_check
testl %eax, %eax
jnz SYMBOL(art_quick_aput_obj_with_bound_check)
jmp SYMBOL(art_quick_throw_null_pointer_exception)
END_FUNCTION art_quick_aput_obj_with_null_and_bound_check
ASM_HIDDEN art_quick_aput_obj_with_bound_check
DEFINE_FUNCTION art_quick_aput_obj_with_bound_check
movl ARRAY_LENGTH_OFFSET(%eax), %ebx
cmpl %ebx, %ecx
jb SYMBOL(art_quick_aput_obj)
mov %ecx, %eax
mov %ebx, %ecx
jmp SYMBOL(art_quick_throw_array_bounds)
END_FUNCTION art_quick_aput_obj_with_bound_check
ASM_HIDDEN art_quick_aput_obj
DEFINE_FUNCTION art_quick_aput_obj
test %edx, %edx // store of null
jz .Ldo_aput_null
movl CLASS_OFFSET(%eax), %ebx
movl CLASS_COMPONENT_TYPE_OFFSET(%ebx), %ebx
cmpl CLASS_OFFSET(%edx), %ebx // value's type == array's component type - trivial assignability
jne .Lcheck_assignability
.Ldo_aput:
movl %edx, OBJECT_ARRAY_DATA_OFFSET(%eax, %ecx, 4)
movl %fs:THREAD_CARD_TABLE_OFFSET, %edx
shrl LITERAL(7), %eax
movb %dl, (%edx, %eax)
ret
.Ldo_aput_null:
movl %edx, OBJECT_ARRAY_DATA_OFFSET(%eax, %ecx, 4)
ret
.Lcheck_assignability:
PUSH eax // save arguments
PUSH ecx
PUSH edx
subl LITERAL(8), %esp // alignment padding
CFI_ADJUST_CFA_OFFSET(8)
pushl CLASS_OFFSET(%edx) // pass arg2 - type of the value to be stored
CFI_ADJUST_CFA_OFFSET(4)
PUSH ebx // pass arg1 - component type of the array
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artIsAssignableFromCode) // (Class* a, Class* b)
addl LITERAL(16), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-16)
testl %eax, %eax
jz .Lthrow_array_store_exception
POP edx
POP ecx
POP eax
movl %edx, OBJECT_ARRAY_DATA_OFFSET(%eax, %ecx, 4) // do the aput
movl %fs:THREAD_CARD_TABLE_OFFSET, %edx
shrl LITERAL(7), %eax
movb %dl, (%edx, %eax)
ret
.Lthrow_array_store_exception:
POP edx
POP ecx
POP eax
SETUP_SAVE_ALL_CALLEE_SAVE_FRAME // save all registers as basis for long jump context
mov %esp, %ecx
// Outgoing argument set up
PUSH ecx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH edx // pass arg2 - value
PUSH eax // pass arg1 - array
call PLT_SYMBOL(artThrowArrayStoreException) // (array, value, Thread*, SP)
int3 // unreached
END_FUNCTION art_quick_aput_obj
DEFINE_FUNCTION art_quick_memcpy
SETUP_GOT_NOSAVE // clobbers EBX
PUSH edx // pass arg3
PUSH ecx // pass arg2
PUSH eax // pass arg1
call PLT_SYMBOL(memcpy) // (void*, const void*, size_t)
addl LITERAL(12), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-12)
ret
END_FUNCTION art_quick_memcpy
NO_ARG_DOWNCALL art_quick_test_suspend, artTestSuspendFromCode, ret
DEFINE_FUNCTION art_quick_d2l
PUSH eax // alignment padding
PUSH ecx // pass arg2 a.hi
PUSH eax // pass arg1 a.lo
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(art_d2l) // (jdouble a)
addl LITERAL(12), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-12)
ret
END_FUNCTION art_quick_d2l
DEFINE_FUNCTION art_quick_f2l
subl LITERAL(8), %esp // alignment padding
CFI_ADJUST_CFA_OFFSET(8)
SETUP_GOT_NOSAVE // clobbers EBX
PUSH eax // pass arg1 a
call PLT_SYMBOL(art_f2l) // (jfloat a)
addl LITERAL(12), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-12)
ret
END_FUNCTION art_quick_f2l
DEFINE_FUNCTION art_quick_ldiv
subl LITERAL(12), %esp // alignment padding
CFI_ADJUST_CFA_OFFSET(12)
PUSH ebx // pass arg4 b.hi
PUSH edx // pass arg3 b.lo
PUSH ecx // pass arg2 a.hi
PUSH eax // pass arg1 a.lo
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artLdiv) // (jlong a, jlong b)
addl LITERAL(28), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-28)
ret
END_FUNCTION art_quick_ldiv
DEFINE_FUNCTION art_quick_lmod
subl LITERAL(12), %esp // alignment padding
CFI_ADJUST_CFA_OFFSET(12)
PUSH ebx // pass arg4 b.hi
PUSH edx // pass arg3 b.lo
PUSH ecx // pass arg2 a.hi
PUSH eax // pass arg1 a.lo
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artLmod) // (jlong a, jlong b)
addl LITERAL(28), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-28)
ret
END_FUNCTION art_quick_lmod
DEFINE_FUNCTION art_quick_lmul
imul %eax, %ebx // ebx = a.lo(eax) * b.hi(ebx)
imul %edx, %ecx // ecx = b.lo(edx) * a.hi(ecx)
mul %edx // edx:eax = a.lo(eax) * b.lo(edx)
add %ebx, %ecx
add %ecx, %edx // edx += (a.lo * b.hi) + (b.lo * a.hi)
ret
END_FUNCTION art_quick_lmul
DEFINE_FUNCTION art_quick_lshl
// ecx:eax << edx
xchg %edx, %ecx
shld %cl,%eax,%edx
shl %cl,%eax
test LITERAL(32), %cl
jz 1f
mov %eax, %edx
xor %eax, %eax
1:
ret
END_FUNCTION art_quick_lshl
DEFINE_FUNCTION art_quick_lshr
// ecx:eax >> edx
xchg %edx, %ecx
shrd %cl,%edx,%eax
sar %cl,%edx
test LITERAL(32),%cl
jz 1f
mov %edx, %eax
sar LITERAL(31), %edx
1:
ret
END_FUNCTION art_quick_lshr
DEFINE_FUNCTION art_quick_lushr
// ecx:eax >>> edx
xchg %edx, %ecx
shrd %cl,%edx,%eax
shr %cl,%edx
test LITERAL(32),%cl
jz 1f
mov %edx, %eax
xor %edx, %edx
1:
ret
END_FUNCTION art_quick_lushr
DEFINE_FUNCTION art_quick_set32_instance
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %ebx // remember SP
subl LITERAL(8), %esp // alignment padding
CFI_ADJUST_CFA_OFFSET(8)
PUSH ebx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
mov 32(%ebx), %ebx // get referrer
PUSH ebx // pass referrer
PUSH edx // pass new_val
PUSH ecx // pass object
PUSH eax // pass field_idx
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artSet32InstanceFromCode) // (field_idx, Object*, new_val, referrer, Thread*, SP)
addl LITERAL(32), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-32)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
RETURN_IF_EAX_ZERO // return or deliver exception
END_FUNCTION art_quick_set32_instance
DEFINE_FUNCTION art_quick_set64_instance
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
subl LITERAL(8), %esp // alignment padding
CFI_ADJUST_CFA_OFFSET(8)
PUSH esp // pass SP-8
addl LITERAL(8), (%esp) // fix SP on stack by adding 8
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH ebx // pass high half of new_val
PUSH edx // pass low half of new_val
PUSH ecx // pass object
PUSH eax // pass field_idx
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artSet64InstanceFromCode) // (field_idx, Object*, new_val, Thread*, SP)
addl LITERAL(32), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-32)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
RETURN_IF_EAX_ZERO // return or deliver exception
END_FUNCTION art_quick_set64_instance
DEFINE_FUNCTION art_quick_set_obj_instance
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %ebx // remember SP
subl LITERAL(8), %esp // alignment padding
CFI_ADJUST_CFA_OFFSET(8)
PUSH ebx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
mov 32(%ebx), %ebx // get referrer
PUSH ebx // pass referrer
PUSH edx // pass new_val
PUSH ecx // pass object
PUSH eax // pass field_idx
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artSetObjInstanceFromCode) // (field_idx, Object*, new_val, referrer, Thread*, SP)
addl LITERAL(32), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-32)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
RETURN_IF_EAX_ZERO // return or deliver exception
END_FUNCTION art_quick_set_obj_instance
DEFINE_FUNCTION art_quick_get32_instance
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %ebx // remember SP
mov 32(%esp), %edx // get referrer
subl LITERAL(12), %esp // alignment padding
CFI_ADJUST_CFA_OFFSET(12)
PUSH ebx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH edx // pass referrer
PUSH ecx // pass object
PUSH eax // pass field_idx
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artGet32InstanceFromCode) // (field_idx, Object*, referrer, Thread*, SP)
addl LITERAL(32), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-32)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
RETURN_OR_DELIVER_PENDING_EXCEPTION // return or deliver exception
END_FUNCTION art_quick_get32_instance
DEFINE_FUNCTION art_quick_get64_instance
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %ebx // remember SP
mov 32(%esp), %edx // get referrer
subl LITERAL(12), %esp // alignment padding
CFI_ADJUST_CFA_OFFSET(12)
PUSH ebx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH edx // pass referrer
PUSH ecx // pass object
PUSH eax // pass field_idx
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artGet64InstanceFromCode) // (field_idx, Object*, referrer, Thread*, SP)
addl LITERAL(32), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-32)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
RETURN_OR_DELIVER_PENDING_EXCEPTION // return or deliver exception
END_FUNCTION art_quick_get64_instance
DEFINE_FUNCTION art_quick_get_obj_instance
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %ebx // remember SP
mov 32(%esp), %edx // get referrer
subl LITERAL(12), %esp // alignment padding
CFI_ADJUST_CFA_OFFSET(12)
PUSH ebx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH edx // pass referrer
PUSH ecx // pass object
PUSH eax // pass field_idx
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artGetObjInstanceFromCode) // (field_idx, Object*, referrer, Thread*, SP)
addl LITERAL(32), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-32)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
RETURN_OR_DELIVER_PENDING_EXCEPTION // return or deliver exception
END_FUNCTION art_quick_get_obj_instance
DEFINE_FUNCTION art_quick_set32_static
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %ebx // remember SP
mov 32(%esp), %edx // get referrer
subl LITERAL(12), %esp // alignment padding
CFI_ADJUST_CFA_OFFSET(12)
PUSH ebx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH edx // pass referrer
PUSH ecx // pass new_val
PUSH eax // pass field_idx
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artSet32StaticFromCode) // (field_idx, new_val, referrer, Thread*, SP)
addl LITERAL(32), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-32)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
RETURN_IF_EAX_ZERO // return or deliver exception
END_FUNCTION art_quick_set32_static
DEFINE_FUNCTION art_quick_set64_static
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %ebx // remember SP
subl LITERAL(8), %esp // alignment padding
CFI_ADJUST_CFA_OFFSET(8)
PUSH ebx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
mov 32(%ebx), %ebx // get referrer
PUSH edx // pass high half of new_val
PUSH ecx // pass low half of new_val
PUSH ebx // pass referrer
PUSH eax // pass field_idx
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artSet64StaticFromCode) // (field_idx, referrer, new_val, Thread*, SP)
addl LITERAL(32), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-32)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
RETURN_IF_EAX_ZERO // return or deliver exception
END_FUNCTION art_quick_set64_static
DEFINE_FUNCTION art_quick_set_obj_static
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %ebx // remember SP
mov 32(%esp), %edx // get referrer
subl LITERAL(12), %esp // alignment padding
CFI_ADJUST_CFA_OFFSET(12)
PUSH ebx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH edx // pass referrer
PUSH ecx // pass new_val
PUSH eax // pass field_idx
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artSetObjStaticFromCode) // (field_idx, new_val, referrer, Thread*, SP)
addl LITERAL(32), %esp // pop arguments
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
RETURN_IF_EAX_ZERO // return or deliver exception
END_FUNCTION art_quick_set_obj_static
DEFINE_FUNCTION art_quick_get32_static
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %edx // remember SP
mov 32(%esp), %ecx // get referrer
PUSH edx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH ecx // pass referrer
PUSH eax // pass field_idx
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artGet32StaticFromCode) // (field_idx, referrer, Thread*, SP)
addl LITERAL(16), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-16)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
RETURN_OR_DELIVER_PENDING_EXCEPTION // return or deliver exception
END_FUNCTION art_quick_get32_static
DEFINE_FUNCTION art_quick_get64_static
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %edx // remember SP
mov 32(%esp), %ecx // get referrer
PUSH edx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH ecx // pass referrer
PUSH eax // pass field_idx
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artGet64StaticFromCode) // (field_idx, referrer, Thread*, SP)
addl LITERAL(16), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-16)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
RETURN_OR_DELIVER_PENDING_EXCEPTION // return or deliver exception
END_FUNCTION art_quick_get64_static
DEFINE_FUNCTION art_quick_get_obj_static
SETUP_REF_ONLY_CALLEE_SAVE_FRAME // save ref containing registers for GC
mov %esp, %edx // remember SP
mov 32(%esp), %ecx // get referrer
PUSH edx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH ecx // pass referrer
PUSH eax // pass field_idx
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artGetObjStaticFromCode) // (field_idx, referrer, Thread*, SP)
addl LITERAL(16), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-16)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address
RETURN_OR_DELIVER_PENDING_EXCEPTION // return or deliver exception
END_FUNCTION art_quick_get_obj_static
DEFINE_FUNCTION art_quick_proxy_invoke_handler
SETUP_REF_AND_ARGS_CALLEE_SAVE_FRAME // save frame and Method*
PUSH esp // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH ecx // pass receiver
PUSH eax // pass proxy method
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artQuickProxyInvokeHandler) // (proxy method, receiver, Thread*, SP)
movd %eax, %xmm0 // place return value also into floating point return value
movd %edx, %xmm1
punpckldq %xmm1, %xmm0
addl LITERAL(44), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-44)
RETURN_OR_DELIVER_PENDING_EXCEPTION // return or deliver exception
END_FUNCTION art_quick_proxy_invoke_handler
/*
* Called to resolve an imt conflict. xmm0 is a hidden argument that holds the target method's
* dex method index.
*/
DEFINE_FUNCTION art_quick_imt_conflict_trampoline
PUSH ecx
movl 8(%esp), %eax // load caller Method*
movl METHOD_DEX_CACHE_METHODS_OFFSET(%eax), %eax // load dex_cache_resolved_methods
movd %xmm0, %ecx // get target method index stored in xmm0
movl OBJECT_ARRAY_DATA_OFFSET(%eax, %ecx, 4), %eax // load the target method
POP ecx
jmp SYMBOL(art_quick_invoke_interface_trampoline)
END_FUNCTION art_quick_imt_conflict_trampoline
DEFINE_FUNCTION art_quick_resolution_trampoline
SETUP_REF_AND_ARGS_CALLEE_SAVE_FRAME
movl %esp, %edi
PUSH EDI // pass SP. do not just PUSH ESP; that messes up unwinding
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH ecx // pass receiver
PUSH eax // pass method
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artQuickResolutionTrampoline) // (Method* called, receiver, Thread*, SP)
movl %eax, %edi // remember code pointer in EDI
addl LITERAL(16), %esp // pop arguments
test %eax, %eax // if code pointer is NULL goto deliver pending exception
jz 1f
POP eax // called method
POP ecx // restore args
POP edx
POP ebx
POP ebp // restore callee saves except EDI
POP esi
xchgl 0(%esp),%edi // restore EDI and place code pointer as only value on stack
ret // tail call into method
1:
RESTORE_REF_AND_ARGS_CALLEE_SAVE_FRAME
DELIVER_PENDING_EXCEPTION
END_FUNCTION art_quick_resolution_trampoline
DEFINE_FUNCTION art_quick_generic_jni_trampoline
SETUP_REF_AND_ARGS_CALLEE_SAVE_FRAME
// This also stores the native ArtMethod reference at the bottom of the stack.
movl %esp, %ebp // save SP at callee-save frame
CFI_DEF_CFA_REGISTER(ebp)
subl LITERAL(5120), %esp
// prepare for artQuickGenericJniTrampoline call
// (Thread*, SP)
// (esp) 4(esp) <= C calling convention
// fs:... ebp <= where they are
// Also: PLT, so need GOT in ebx.
subl LITERAL(8), %esp // Padding for 16B alignment.
pushl %ebp // Pass SP (to ArtMethod).
pushl %fs:THREAD_SELF_OFFSET // Pass Thread::Current().
SETUP_GOT_NOSAVE // Clobbers ebx.
call PLT_SYMBOL(artQuickGenericJniTrampoline) // (Thread*, sp)
// The C call will have registered the complete save-frame on success.
// The result of the call is:
// eax: pointer to native code, 0 on error.
// edx: pointer to the bottom of the used area of the alloca, can restore stack till there.
// Check for error = 0.
test %eax, %eax
jz .Lentry_error
// Release part of the alloca.
movl %edx, %esp
// On x86 there are no registers passed, so nothing to pop here.
// Native call.
call *%eax
// result sign extension is handled in C code
// prepare for artQuickGenericJniEndTrampoline call
// (Thread*, result, result_f)
// (esp) 4(esp) 12(esp) <= C calling convention
// fs:... eax:edx fp0 <= where they are
subl LITERAL(20), %esp // Padding & pass float result.
fstpl (%esp)
pushl %edx // Pass int result.
pushl %eax
pushl %fs:THREAD_SELF_OFFSET // Pass Thread::Current().
call PLT_SYMBOL(artQuickGenericJniEndTrampoline)
// Tear down the alloca.
movl %ebp, %esp
CFI_DEF_CFA_REGISTER(esp)
// Pending exceptions possible.
mov %fs:THREAD_EXCEPTION_OFFSET, %ebx
testl %ebx, %ebx
jnz .Lexception_in_native
// Tear down the callee-save frame.
addl LITERAL(4), %esp // Remove padding
CFI_ADJUST_CFA_OFFSET(-4)
POP ecx
addl LITERAL(4), %esp // Avoid edx, as it may be part of the result.
CFI_ADJUST_CFA_OFFSET(-4)
POP ebx
POP ebp // Restore callee saves
POP esi
POP edi
// Quick expects the return value to be in xmm0.
movd %eax, %xmm0
movd %edx, %xmm1
punpckldq %xmm1, %xmm0
ret
.Lentry_error:
movl %ebp, %esp
CFI_DEF_CFA_REGISTER(esp)
.Lexception_in_native:
RESTORE_REF_AND_ARGS_CALLEE_SAVE_FRAME
DELIVER_PENDING_EXCEPTION
END_FUNCTION art_quick_generic_jni_trampoline
DEFINE_FUNCTION art_quick_to_interpreter_bridge
SETUP_REF_AND_ARGS_CALLEE_SAVE_FRAME // save frame
mov %esp, %edx // remember SP
PUSH eax // alignment padding
PUSH edx // pass SP
pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current()
CFI_ADJUST_CFA_OFFSET(4)
PUSH eax // pass method
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artQuickToInterpreterBridge) // (method, Thread*, SP)
movd %eax, %xmm0 // place return value also into floating point return value
movd %edx, %xmm1
punpckldq %xmm1, %xmm0
addl LITERAL(16), %esp // pop arguments
CFI_ADJUST_CFA_OFFSET(-16)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
RETURN_OR_DELIVER_PENDING_EXCEPTION // return or deliver exception
END_FUNCTION art_quick_to_interpreter_bridge
/*
* Routine that intercepts method calls and returns.
*/
DEFINE_FUNCTION art_quick_instrumentation_entry
SETUP_REF_AND_ARGS_CALLEE_SAVE_FRAME
movl %esp, %edx // Save SP.
PUSH eax // Save eax which will be clobbered by the callee-save method.
subl LITERAL(8), %esp // Align stack.
CFI_ADJUST_CFA_OFFSET(8)
pushl 40(%esp) // Pass LR.
CFI_ADJUST_CFA_OFFSET(4)
PUSH edx // Pass SP.
pushl %fs:THREAD_SELF_OFFSET // Pass Thread::Current().
CFI_ADJUST_CFA_OFFSET(4)
PUSH ecx // Pass receiver.
PUSH eax // Pass Method*.
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artInstrumentationMethodEntryFromCode) // (Method*, Object*, Thread*, SP, LR)
addl LITERAL(28), %esp // Pop arguments upto saved Method*.
movl 28(%esp), %edi // Restore edi.
movl %eax, 28(%esp) // Place code* over edi, just under return pc.
movl SYMBOL(art_quick_instrumentation_exit)@GOT(%ebx), %ebx
movl %ebx, 32(%esp)
// Place instrumentation exit as return pc.
movl (%esp), %eax // Restore eax.
movl 8(%esp), %ecx // Restore ecx.
movl 12(%esp), %edx // Restore edx.
movl 16(%esp), %ebx // Restore ebx.
movl 20(%esp), %ebp // Restore ebp.
movl 24(%esp), %esi // Restore esi.
addl LITERAL(28), %esp // Wind stack back upto code*.
ret // Call method (and pop).
END_FUNCTION art_quick_instrumentation_entry
DEFINE_FUNCTION art_quick_instrumentation_exit
pushl LITERAL(0) // Push a fake return PC as there will be none on the stack.
SETUP_REF_ONLY_CALLEE_SAVE_FRAME
mov %esp, %ecx // Remember SP
subl LITERAL(8), %esp // Save float return value.
CFI_ADJUST_CFA_OFFSET(8)
movq %xmm0, (%esp)
PUSH edx // Save gpr return value.
PUSH eax
subl LITERAL(16), %esp // Align stack
CFI_ADJUST_CFA_OFFSET(16)
movq %xmm0, (%esp) // Pass float return value.
PUSH edx // Pass gpr return value.
PUSH eax
PUSH ecx // Pass SP.
pushl %fs:THREAD_SELF_OFFSET // Pass Thread::Current.
CFI_ADJUST_CFA_OFFSET(4)
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artInstrumentationMethodExitFromCode) // (Thread*, SP, gpr_result, fpr_result)
mov %eax, %ecx // Move returned link register.
addl LITERAL(32), %esp // Pop arguments.
CFI_ADJUST_CFA_OFFSET(-32)
movl %edx, %ebx // Move returned link register for deopt
// (ebx is pretending to be our LR).
POP eax // Restore gpr return value.
POP edx
movq (%esp), %xmm0 // Restore fpr return value.
addl LITERAL(8), %esp
CFI_ADJUST_CFA_OFFSET(-8)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
addl LITERAL(4), %esp // Remove fake return pc.
jmp *%ecx // Return.
END_FUNCTION art_quick_instrumentation_exit
/*
* Instrumentation has requested that we deoptimize into the interpreter. The deoptimization
* will long jump to the upcall with a special exception of -1.
*/
DEFINE_FUNCTION art_quick_deoptimize
pushl %ebx // Fake that we were called.
SETUP_SAVE_ALL_CALLEE_SAVE_FRAME
mov %esp, %ecx // Remember SP.
subl LITERAL(8), %esp // Align stack.
CFI_ADJUST_CFA_OFFSET(8)
PUSH ecx // Pass SP.
pushl %fs:THREAD_SELF_OFFSET // Pass Thread::Current().
CFI_ADJUST_CFA_OFFSET(4)
SETUP_GOT_NOSAVE // clobbers EBX
call PLT_SYMBOL(artDeoptimize) // artDeoptimize(Thread*, SP)
int3 // Unreachable.
END_FUNCTION art_quick_deoptimize
/*
* String's compareTo.
*
* On entry:
* eax: this string object (known non-null)
* ecx: comp string object (known non-null)
*/
DEFINE_FUNCTION art_quick_string_compareto
PUSH esi // push callee save reg
PUSH edi // push callee save reg
mov STRING_COUNT_OFFSET(%eax), %edx
mov STRING_COUNT_OFFSET(%ecx), %ebx
mov STRING_VALUE_OFFSET(%eax), %esi
mov STRING_VALUE_OFFSET(%ecx), %edi
mov STRING_OFFSET_OFFSET(%eax), %eax
mov STRING_OFFSET_OFFSET(%ecx), %ecx
/* Build pointers to the start of string data */
lea STRING_DATA_OFFSET(%esi, %eax, 2), %esi
lea STRING_DATA_OFFSET(%edi, %ecx, 2), %edi
/* Calculate min length and count diff */
mov %edx, %ecx
mov %edx, %eax
subl %ebx, %eax
cmovg %ebx, %ecx
/*
* At this point we have:
* eax: value to return if first part of strings are equal
* ecx: minimum among the lengths of the two strings
* esi: pointer to this string data
* edi: pointer to comp string data
*/
jecxz .Lkeep_length
repe cmpsw // find nonmatching chars in [%esi] and [%edi], up to length %ecx
jne .Lnot_equal
.Lkeep_length:
POP edi // pop callee save reg
POP esi // pop callee save reg
ret
.balign 16
.Lnot_equal:
movzwl -2(%esi), %eax // get last compared char from this string
movzwl -2(%edi), %ecx // get last compared char from comp string
subl %ecx, %eax // return the difference
POP edi // pop callee save reg
POP esi // pop callee save reg
ret
END_FUNCTION art_quick_string_compareto
// TODO: implement these!
UNIMPLEMENTED art_quick_memcmp16