blob: be6945b14b59afc605b06cf82512995778dda8d2 [file] [log] [blame]
#include "asm_support.h"
.balign 4
/* Deliver the given exception */
.extern artDeliverExceptionFromCode
/* Deliver an exception pending on a thread */
.extern artDeliverPendingException
/*
* Macro that sets up the callee save frame to conform with
* Runtime::CreateCalleeSaveMethod(kSaveAll)
*/
.macro SETUP_CALLEE_SAVE_FRAME
push {r4-r11, lr} @ 9 words of callee saves
vpush {s0-s31}
sub sp, #12 @ 3 words of space, bottom word will hold Method*
.endm
/*
* Macro that sets up the callee save frame to conform with
* Runtime::CreateCalleeSaveMethod(kRefsOnly). Restoration assumes non-moving GC.
*/
.macro SETUP_REF_ONLY_CALLEE_SAVE_FRAME
push {r5-r8, r10-r11, lr} @ 7 words of callee saves
sub sp, #4 @ bottom word will hold Method*
.endm
.macro RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
ldr lr, [sp, #28] @ restore lr for return
add sp, #32 @ unwind stack
.endm
.macro RESTORE_REF_ONLY_CALLEE_SAVE_FRAME_AND_RETURN
ldr lr, [sp, #28] @ restore lr for return
add sp, #32 @ unwind stack
bx lr @ return
.endm
/*
* Macro that sets up the callee save frame to conform with
* Runtime::CreateCalleeSaveMethod(kRefsAndArgs). Restoration assumes non-moving GC.
*/
.macro SETUP_REF_AND_ARGS_CALLEE_SAVE_FRAME
push {r1-r3, r5-r8, r10-r11, lr} @ 10 words of callee saves
sub sp, #8 @ 2 words of space, bottom word will hold Method*
.endm
.macro RESTORE_REF_AND_ARGS_CALLEE_SAVE_FRAME
ldr r1, [sp, #8] @ restore non-callee save r1
ldrd r2, [sp, #12] @ restore non-callee saves r2-r3
ldr lr, [sp, #44] @ restore lr
add sp, #48 @ rewind sp
.endm
/*
* Macro that set calls through to artDeliverPendingExceptionFromCode, where the pending
* exception is Thread::Current()->exception_
*/
.macro DELIVER_PENDING_EXCEPTION
SETUP_CALLEE_SAVE_FRAME @ save callee saves for throw
mov r0, r9 @ pass Thread::Current
mov r1, sp @ pass SP
b artDeliverPendingExceptionFromCode @ artDeliverPendingExceptionFromCode(Thread*, SP)
.endm
.global art_update_debugger
.extern artUpdateDebuggerFromCode
/*
* On entry, r0 and r1 must be preserved, r2 is dex PC
*/
art_update_debugger:
mov r3, r0 @ stash away r0 so that it's saved as if it were an argument
SETUP_REF_AND_ARGS_CALLEE_SAVE_FRAME
mov r0, r2 @ arg0 is dex PC
mov r1, rSELF @ arg1 is Thread*
mov r2, sp @ arg2 is sp
bl artUpdateDebuggerFromCode @ artUpdateDebuggerFromCode(int32_t, Thread*, Method**)
RESTORE_REF_AND_ARGS_CALLEE_SAVE_FRAME
mov r0, r3 @ restore original r0
bx lr
.global art_do_long_jump
/*
* On entry r0 is uint32_t* gprs_ and r1 is uint32_t* fprs_
*/
art_do_long_jump:
vldm r1, {s0-s31} @ load all fprs from argument fprs_
ldr r2, [r0, #60] @ r2 = r15 (PC from gprs_ 60=4*15)
add r0, r0, #12 @ increment r0 to skip gprs_[0..2] 12=4*3
ldm r0, {r3-r14} @ load remaining gprs from argument gprs_
mov r0, #0 @ clear result registers r0 and r1
mov r1, #0
bx r2 @ do long jump
.global art_deliver_exception_from_code
/*
* Called by managed code, saves most registers (forms basis of long jump context) and passes
* the bottom of the stack. artDeliverExceptionFromCode will place the callee save Method* at
* the bottom of the thread. On entry r0 holds Throwable*
*/
art_deliver_exception_from_code:
SETUP_CALLEE_SAVE_FRAME
mov r1, r9 @ pass Thread::Current
mov r2, sp @ pass SP
b artDeliverExceptionFromCode @ artDeliverExceptionFromCode(Throwable*, Thread*, SP)
.global art_throw_null_pointer_exception_from_code
.extern artThrowNullPointerExceptionFromCode
/*
* Called by managed code to create and deliver a NullPointerException
*/
art_throw_null_pointer_exception_from_code:
SETUP_CALLEE_SAVE_FRAME
mov r0, r9 @ pass Thread::Current
mov r1, sp @ pass SP
b artThrowNullPointerExceptionFromCode @ artThrowNullPointerExceptionFromCode(Thread*, SP)
.global art_throw_div_zero_from_code
.extern artThrowDivZeroFromCode
/*
* Called by managed code to create and deliver an ArithmeticException
*/
art_throw_div_zero_from_code:
SETUP_CALLEE_SAVE_FRAME
mov r0, r9 @ pass Thread::Current
mov r1, sp @ pass SP
b artThrowDivZeroFromCode @ artThrowDivZeroFromCode(Thread*, SP)
.global art_throw_array_bounds_from_code
.extern artThrowArrayBoundsFromCode
/*
* Called by managed code to create and deliver an ArrayIndexOutOfBoundsException
*/
art_throw_array_bounds_from_code:
SETUP_CALLEE_SAVE_FRAME
mov r2, r9 @ pass Thread::Current
mov r3, sp @ pass SP
b artThrowArrayBoundsFromCode @ artThrowArrayBoundsFromCode(index, limit, Thread*, SP)
.global art_throw_stack_overflow_from_code
.extern artThrowStackOverflowFromCode
art_throw_stack_overflow_from_code:
SETUP_CALLEE_SAVE_FRAME
mov r1, r9 @ pass Thread::Current
mov r2, sp @ pass SP
b artThrowStackOverflowFromCode @ artThrowStackOverflowFromCode(method, Thread*, SP)
.global art_throw_neg_array_size_from_code
.extern artThrowNegArraySizeFromCode
art_throw_neg_array_size_from_code:
SETUP_CALLEE_SAVE_FRAME
mov r1, r9 @ pass Thread::Current
mov r2, sp @ pass SP
b artThrowNegArraySizeFromCode @ artThrowNegArraySizeFromCode(size, Thread*, SP)
.global art_throw_no_such_method_from_code
.extern artThrowNoSuchMethodFromCode
art_throw_no_such_method_from_code:
SETUP_CALLEE_SAVE_FRAME
mov r1, r9 @ pass Thread::Current
mov r2, sp @ pass SP
b artThrowNoSuchMethodFromCode @ artThrowNoSuchMethodFromCode(method_idx, Thread*, SP)
.global art_throw_verification_error_from_code
.extern artThrowVerificationErrorFromCode
art_throw_verification_error_from_code:
SETUP_CALLEE_SAVE_FRAME
mov r2, r9 @ pass Thread::Current
mov r3, sp @ pass SP
b artThrowVerificationErrorFromCode @ artThrowVerificationErrorFromCode(kind, ref, Thread*, SP)
/*
* 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 visable 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.
*/
.macro INVOKE_TRAMPOLINE c_name, cxx_name
.global \c_name
.extern \cxx_name
\c_name:
SETUP_REF_AND_ARGS_CALLEE_SAVE_FRAME @ save callee saves in case allocation triggers GC
ldr r2, [sp, #48] @ pass caller Method*
mov r3, r9 @ pass Thread::Current
str sp, [sp, #0] @ pass SP
bl \cxx_name @ (method_idx, this, caller, Thread*, SP)
mov r12, r1 @ save r0->code_
RESTORE_REF_AND_ARGS_CALLEE_SAVE_FRAME
cmp r0, #0 @ did we find the target?
bxne r12 @ tail call to target if so
DELIVER_PENDING_EXCEPTION
.endm
INVOKE_TRAMPOLINE art_invoke_interface_trampoline, artInvokeInterfaceTrampoline
INVOKE_TRAMPOLINE art_invoke_interface_trampoline_with_access_check, artInvokeInterfaceTrampolineWithAccessCheck
INVOKE_TRAMPOLINE art_invoke_static_trampoline_with_access_check, artInvokeStaticTrampolineWithAccessCheck
INVOKE_TRAMPOLINE art_invoke_direct_trampoline_with_access_check, artInvokeDirectTrampolineWithAccessCheck
INVOKE_TRAMPOLINE art_invoke_super_trampoline_with_access_check, artInvokeSuperTrampolineWithAccessCheck
INVOKE_TRAMPOLINE art_invoke_virtual_trampoline_with_access_check, artInvokeVirtualTrampolineWithAccessCheck
.global art_work_around_app_jni_bugs
.extern artWorkAroundAppJniBugs
/*
* Entry point of native methods when JNI bug compatibility is enabled.
*/
art_work_around_app_jni_bugs:
@ save registers that may contain arguments and LR that will be crushed by a call
push {r0-r3, lr}
sub sp, #12 @ 3 words of space for alignment
mov r0, r9 @ pass Thread::Current
mov r1, sp @ pass SP
bl artWorkAroundAppJniBugs @ (Thread*, SP)
add sp, #12 @ rewind stack
mov r12, r0 @ save target address
pop {r0-r3, lr} @ restore possibly modified argument registers
bx r12 @ tail call into JNI routine
.global art_handle_fill_data_from_code
.extern artHandleFillArrayDataFromCode
/*
* Entry from managed code that calls artHandleFillArrayDataFromCode and delivers exception on
* failure.
*/
art_handle_fill_data_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case exception allocation triggers GC
mov r2, r9 @ pass Thread::Current
mov r3, sp @ pass SP
bl artHandleFillArrayDataFromCode @ (Array* array, const uint16_t* table, Thread*, SP)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r0, #0 @ success?
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_lock_object_from_code
.extern artLockObjectFromCode
/*
* Entry from managed code that calls artLockObjectFromCode, may block for GC
*/
art_lock_object_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case we block
mov r1, r9 @ pass Thread::Current
mov r2, sp @ pass SP
bl artLockObjectFromCode @ (Object* obj, Thread*, SP)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME_AND_RETURN
.global art_unlock_object_from_code
.extern artUnlockObjectFromCode
/*
* Entry from managed code that calls artUnlockObjectFromCode and delivers exception on failure.
*/
art_unlock_object_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case exception allocation triggers GC
mov r1, r9 @ pass Thread::Current
mov r2, sp @ pass SP
bl artUnlockObjectFromCode @ (Object* obj, Thread*, SP)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r0, #0 @ success?
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_check_cast_from_code
.extern artCheckCastFromCode
/*
* Entry from managed code that calls artCheckCastFromCode and delivers exception on failure.
*/
art_check_cast_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case exception allocation triggers GC
mov r2, r9 @ pass Thread::Current
mov r3, sp @ pass SP
bl artCheckCastFromCode @ (Class* a, Class* b, Thread*, SP)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r0, #0 @ success?
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_can_put_array_element_from_code
.extern artCanPutArrayElementFromCode
/*
* Entry from managed code that calls artCanPutArrayElementFromCode and delivers exception on
* failure.
*/
art_can_put_array_element_from_code:
cmp r0, #0 @ return if element == NULL
bxeq lr
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case exception allocation triggers GC
mov r2, r9 @ pass Thread::Current
mov r3, sp @ pass SP
bl artCanPutArrayElementFromCode @ (Object* element, Class* array_class, Thread*, SP)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r0, #0 @ success?
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_initialize_static_storage_from_code
.extern artInitializeStaticStorageFromCode
/*
* Entry from managed code when uninitialized static storage, this stub will run the class
* initializer and deliver the exception on error. On success the static storage base is
* returned.
*/
art_initialize_static_storage_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
mov r2, r9 @ pass Thread::Current
mov r3, sp @ pass SP
@ artInitializeStaticStorageFromCode(uint32_t type_idx, Method* referrer, Thread*, SP)
bl artInitializeStaticStorageFromCode
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r0, #0 @ success if result is non-null
bxne lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_initialize_type_from_code
.extern artInitializeTypeFromCode
/*
* Entry from managed code when dex cache misses for a type_idx
*/
art_initialize_type_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
mov r2, r9 @ pass Thread::Current
mov r3, sp @ pass SP
@ artInitializeTypeFromCode(uint32_t type_idx, Method* referrer, Thread*, SP)
bl artInitializeTypeFromCode
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r0, #0 @ success if result is non-null
bxne lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_initialize_type_and_verify_access_from_code
.extern artInitializeTypeAndVerifyAccessFromCode
/*
* Entry from managed code when type_idx needs to be checked for access and dex cache may also
* miss
*/
art_initialize_type_and_verify_access_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
mov r2, r9 @ pass Thread::Current
mov r3, sp @ pass SP
@ artInitializeTypeFromCode(uint32_t type_idx, Method* referrer, Thread*, SP)
bl artInitializeTypeAndVerifyAccessFromCode
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r0, #0 @ success if result is non-null
bxne lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_get32_static_from_code
.extern artGet32StaticFromCode
/*
* Called by managed code to resolve a static field and load a 32-bit primitive value
*/
art_get32_static_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
ldr r1, [sp, #32] @ pass referrer
mov r2, r9 @ pass Thread::Current
mov r3, sp @ pass SP
bl artGet32StaticFromCode @ (uint32_t field_idx, const Method* referrer, Thread*, SP)
ldr r12, [r9, #THREAD_EXCEPTION_OFFSET] @ load Thread::Current()->exception_
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r12, #0 @ success if no exception is pending
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_get64_static_from_code
.extern artGet64StaticFromCode
/*
* Called by managed code to resolve a static field and load a 64-bit primitive value
*/
art_get64_static_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
ldr r1, [sp, #32] @ pass referrer
mov r2, r9 @ pass Thread::Current
mov r3, sp @ pass SP
bl artGet64StaticFromCode @ (uint32_t field_idx, const Method* referrer, Thread*, SP)
ldr r12, [r9, #THREAD_EXCEPTION_OFFSET] @ load Thread::Current()->exception_
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r12, #0 @ success if no exception is pending
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_get_obj_static_from_code
.extern artGetObjStaticFromCode
/*
* Called by managed code to resolve a static field and load an object reference
*/
art_get_obj_static_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
ldr r1, [sp, #32] @ pass referrer
mov r2, r9 @ pass Thread::Current
mov r3, sp @ pass SP
bl artGetObjStaticFromCode @ (uint32_t field_idx, const Method* referrer, Thread*, SP)
ldr r12, [r9, #THREAD_EXCEPTION_OFFSET] @ load Thread::Current()->exception_
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r12, #0 @ success if no exception is pending
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_get32_instance_from_code
.extern artGet32InstanceFromCode
/*
* Called by managed code to resolve an instance field and load a 32-bit primitive value
*/
art_get32_instance_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
ldr r2, [sp, #32] @ pass referrer
mov r3, r9 @ pass Thread::Current
str sp, [sp, #0] @ pass SP
bl artGet32InstanceFromCode @ (field_idx, Object*, referrer, Thread*, SP)
ldr r12, [r9, #THREAD_EXCEPTION_OFFSET] @ load Thread::Current()->exception_
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r12, #0 @ success if no exception is pending
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_get64_instance_from_code
.extern artGet64InstanceFromCode
/*
* Called by managed code to resolve an instance field and load a 64-bit primitive value
*/
art_get64_instance_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
ldr r2, [sp, #32] @ pass referrer
mov r3, r9 @ pass Thread::Current
str sp, [sp, #0] @ pass SP
bl artGet64InstanceFromCode @ (field_idx, Object*, referrer, Thread*, SP)
ldr r12, [r9, #THREAD_EXCEPTION_OFFSET] @ load Thread::Current()->exception_
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r12, #0 @ success if no exception is pending
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_get_obj_instance_from_code
.extern artGetObjInstanceFromCode
/*
* Called by managed code to resolve an instance field and load an object reference
*/
art_get_obj_instance_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
ldr r2, [sp, #32] @ pass referrer
mov r3, r9 @ pass Thread::Current
str sp, [sp, #0] @ pass SP
bl artGetObjInstanceFromCode @ (field_idx, Object*, referrer, Thread*, SP)
ldr r12, [r9, #THREAD_EXCEPTION_OFFSET] @ load Thread::Current()->exception_
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r12, #0 @ success if no exception is pending
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_set32_static_from_code
.extern artSet32StaticFromCode
/*
* Called by managed code to resolve a static field and store a 32-bit primitive value
*/
art_set32_static_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
ldr r2, [sp, #32] @ pass referrer
mov r3, r9 @ pass Thread::Current
str sp, [sp, #0] @ pass SP
bl artSet32StaticFromCode @ (field_idx, new_val, referrer, Thread*, SP)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r0, #0 @ success if result is 0
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_set64_static_from_code
.extern artSet32StaticFromCode
/*
* Called by managed code to resolve a static field and store a 64-bit primitive value
*/
art_set64_static_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
ldr r1, [sp, #32] @ pass referrer
mov r12, sp @ save SP
sub sp, #8 @ grow frame for alignment with stack args
push {r9, r12} @ pass Thread::Current and SP
bl artSet64StaticFromCode @ (field_idx, referrer, new_val, Thread*, SP)
add sp, #16 @ release out args
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME @ TODO: we can clearly save an add here
cmp r0, #0 @ success if result is 0
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_set_obj_static_from_code
.extern artSetObjStaticFromCode
/*
* Called by managed code to resolve a static field and store an object reference
*/
art_set_obj_static_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
ldr r2, [sp, #32] @ pass referrer
mov r3, r9 @ pass Thread::Current
str sp, [sp, #0] @ pass SP
bl artSetObjStaticFromCode @ (field_idx, new_val, referrer, Thread*, SP)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r0, #0 @ success if result is 0
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_set32_instance_from_code
.extern artSet32InstanceFromCode
/*
* Called by managed code to resolve an instance field and store a 32-bit primitive value
*/
art_set32_instance_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
ldr r3, [sp, #32] @ pass referrer
mov r12, sp @ save SP
sub sp, #8 @ grow frame for alignment with stack args
push {r9, r12} @ pass Thread::Current and SP
bl artSet32InstanceFromCode @ (field_idx, Object*, new_val, referrer, Thread*, SP)
add sp, #16 @ release out args
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME @ TODO: we can clearly save an add here
cmp r0, #0 @ success if result is 0
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_set64_instance_from_code
.extern artSet32InstanceFromCode
/*
* Called by managed code to resolve an instance field and store a 64-bit primitive value
*/
art_set64_instance_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
mov r12, sp @ save SP
sub sp, #8 @ grow frame for alignment with stack args
push {r9, r12} @ pass Thread::Current and SP
bl artSet64InstanceFromCode @ (field_idx, Object*, new_val, Thread*, SP)
add sp, #16 @ release out args
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME @ TODO: we can clearly save an add here
cmp r0, #0 @ success if result is 0
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_set_obj_instance_from_code
.extern artSetObjInstanceFromCode
/*
* Called by managed code to resolve an instance field and store an object reference
*/
art_set_obj_instance_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
ldr r3, [sp, #32] @ pass referrer
mov r12, sp @ save SP
sub sp, #8 @ grow frame for alignment with stack args
push {r9, r12} @ pass Thread::Current and SP
bl artSetObjInstanceFromCode @ (field_idx, Object*, new_val, referrer, Thread*, SP)
add sp, #16 @ release out args
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME @ TODO: we can clearly save an add here
cmp r0, #0 @ success if result is 0
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_resolve_string_from_code
.extern artResolveStringFromCode
/*
* Entry from managed code to resolve a string, this stub will allocate a String and deliver an
* exception on error. On success the String is returned. R0 holds the referring method,
* R1 holds the string index. The fast path check for hit in strings cache has already been
* performed.
*/
art_resolve_string_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
mov r2, r9 @ pass Thread::Current
mov r3, sp @ pass SP
@ artResolveStringFromCode(Method* referrer, uint32_t string_idx, Thread*, SP)
bl artResolveStringFromCode
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r0, #0 @ success if result is non-null
bxne lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_alloc_object_from_code
.extern artAllocObjectFromCode
/*
* Called by managed code to allocate an object
*/
art_alloc_object_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
mov r2, r9 @ pass Thread::Current
mov r3, sp @ pass SP
bl artAllocObjectFromCode @ (uint32_t type_idx, Method* method, Thread*, SP)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r0, #0 @ success if result is non-null
bxne lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_alloc_object_from_code_with_access_check
.extern artAllocObjectFromCodeWithAccessCheck
/*
* Called by managed code to allocate an object when the caller doesn't know whether it has
* access to the created type
*/
art_alloc_object_from_code_with_access_check:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
mov r2, r9 @ pass Thread::Current
mov r3, sp @ pass SP
bl artAllocObjectFromCodeWithAccessCheck @ (uint32_t type_idx, Method* method, Thread*, SP)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r0, #0 @ success if result is non-null
bxne lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_alloc_array_from_code
.extern artAllocArrayFromCode
/*
* Called by managed code to allocate an array
*/
art_alloc_array_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
mov r3, r9 @ pass Thread::Current
str sp, [sp, #0] @ pass SP
@ artAllocArrayFromCode(uint32_t type_idx, Method* method, int32_t component_count, Thread*, SP)
bl artAllocArrayFromCode
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r0, #0 @ success if result is non-null
bxne lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_alloc_array_from_code_with_access_check
.extern artAllocArrayFromCodeWithAccessCheck
/*
* Called by managed code to allocate an array when the caller doesn't know whether it has
* access to the created type
*/
art_alloc_array_from_code_with_access_check:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
mov r3, r9 @ pass Thread::Current
str sp, [sp, #0] @ pass SP
@ artAllocArrayFromCodeWithAccessCheck(type_idx, method, component_count, Thread*, SP)
bl artAllocArrayFromCodeWithAccessCheck
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r0, #0 @ success if result is non-null
bxne lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_check_and_alloc_array_from_code
.extern artCheckAndAllocArrayFromCode
/*
* Called by managed code to allocate an array in a special case for FILLED_NEW_ARRAY
*/
art_check_and_alloc_array_from_code:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
mov r3, r9 @ pass Thread::Current
str sp, [sp, #0] @ pass SP
@ artCheckAndAllocArrayFromCode(uint32_t type_idx, Method* method, int32_t count, Thread* , SP)
bl artCheckAndAllocArrayFromCode
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r0, #0 @ success if result is non-null
bxne lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_check_and_alloc_array_from_code_with_access_check
.extern artCheckAndAllocArrayFromCodeWithAccessCheck
/*
* Called by managed code to allocate an array in a special case for FILLED_NEW_ARRAY
*/
art_check_and_alloc_array_from_code_with_access_check:
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves in case of GC
mov r3, r9 @ pass Thread::Current
str sp, [sp, #0] @ pass SP
@ artCheckAndAllocArrayFromCodeWithAccessCheck(type_idx, method, count, Thread* , SP)
bl artCheckAndAllocArrayFromCodeWithAccessCheck
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME
cmp r0, #0 @ success if result is non-null
bxne lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_test_suspend
.extern artTestSuspendFromCode
/*
* Called by managed code when the value in rSUSPEND has been decremented to 0
*/
art_test_suspend:
ldr r0, [rSELF, #THREAD_SUSPEND_COUNT_OFFSET]
mov rSUSPEND, #SUSPEND_CHECK_INTERVAL @ reset rSUSPEND to SUSPEND_CHECK_INTERVAL
cmp r0, #0 @ check Thread::Current()->suspend_count_ == 0
bxeq rLR @ return if suspend_count_ == 0
mov r0, rSELF
SETUP_REF_ONLY_CALLEE_SAVE_FRAME @ save callee saves for stack crawl
mov r1, sp
bl artTestSuspendFromCode @ (Thread*, SP)
RESTORE_REF_ONLY_CALLEE_SAVE_FRAME_AND_RETURN
.global art_proxy_invoke_handler
.extern artProxyInvokeHandler
/*
* Called by managed code that is attempting to call a method on a proxy class. On entry
* r0 holds the proxy method; r1, r2 and r3 may contain arguments
*/
art_proxy_invoke_handler:
SETUP_REF_AND_ARGS_CALLEE_SAVE_FRAME
str r0, [sp, #0] @ place proxy method at bottom of frame
mov r2, r9 @ pass Thread::Current
add r3, sp, #12 @ pointer to r2/r3/LR/caller's Method**/out-args as second arg
blx artProxyInvokeHandler @ (Method* proxy method, receiver, Thread*, args...)
ldr r12, [r9, #THREAD_EXCEPTION_OFFSET] @ load Thread::Current()->exception_
ldr lr, [sp, #44] @ restore lr
ldrd r0, [sp, #12] @ load r0/r1 from r2/r3 that were overwritten with the out args
add sp, #48 @ pop frame
cmp r12, #0 @ success if no exception is pending
bxeq lr @ return on success
DELIVER_PENDING_EXCEPTION
.global art_trace_entry_from_code
.extern artTraceMethodEntryFromCode
/*
* Routine that intercepts method calls
*/
art_trace_entry_from_code:
push {r0-r3} @ save arguments (4 words)
mov r1, r9 @ pass Thread::Current
mov r2, lr @ pass LR
blx artTraceMethodEntryFromCode @ (Method*, Thread*, LR)
mov r12, r0 @ r12 holds reference to code
pop {r0-r3} @ restore arguments
blx r12 @ call method
/* intentional fallthrough */
.global art_trace_exit_from_code
.extern artTraceMethodExitFromCode
/*
* Routine that intercepts method returns
*/
art_trace_exit_from_code:
push {r0-r1} @ save return value
blx artTraceMethodExitFromCode @ ()
mov lr, r0 @ restore link register
pop {r0, r1} @ restore return value
bx lr @ return
.global art_shl_long
art_shl_long:
/*
* Long integer shift. This is different from the generic 32/64-bit
* binary operations because vAA/vBB are 64-bit but vCC (the shift
* distance) is 32-bit. Also, Dalvik requires us to ignore all but the low
* 6 bits.
* On entry:
* r0: low word
* r1: high word
* r2: shift count
*/
/* shl-long vAA, vBB, vCC */
and r2, r2, #63 @ r2<- r2 & 0x3f
mov r1, r1, asl r2 @ r1<- r1 << r2
rsb r3, r2, #32 @ r3<- 32 - r2
orr r1, r1, r0, lsr r3 @ r1<- r1 | (r0 << (32-r2))
subs ip, r2, #32 @ ip<- r2 - 32
movpl r1, r0, asl ip @ if r2 >= 32, r1<- r0 << (r2-32)
mov r0, r0, asl r2 @ r0<- r0 << r2
bx lr
.balign 4
.global art_shr_long
art_shr_long:
/*
* Long integer shift. This is different from the generic 32/64-bit
* binary operations because vAA/vBB are 64-bit but vCC (the shift
* distance) is 32-bit. Also, Dalvik requires us to ignore all but the low
* 6 bits.
* On entry:
* r0: low word
* r1: high word
* r2: shift count
*/
/* shr-long vAA, vBB, vCC */
and r2, r2, #63 @ r0<- r0 & 0x3f
mov r0, r0, lsr r2 @ r0<- r2 >> r2
rsb r3, r2, #32 @ r3<- 32 - r2
orr r0, r0, r1, asl r3 @ r0<- r0 | (r1 << (32-r2))
subs ip, r2, #32 @ ip<- r2 - 32
movpl r0, r1, asr ip @ if r2 >= 32, r0<-r1 >> (r2-32)
mov r1, r1, asr r2 @ r1<- r1 >> r2
bx lr
.balign 4
.global art_ushr_long
art_ushr_long:
/*
* Long integer shift. This is different from the generic 32/64-bit
* binary operations because vAA/vBB are 64-bit but vCC (the shift
* distance) is 32-bit. Also, Dalvik requires us to ignore all but the low
* 6 bits.
* On entry:
* r0: low word
* r1: high word
* r2: shift count
*/
/* ushr-long vAA, vBB, vCC */
and r2, r2, #63 @ r0<- r0 & 0x3f
mov r0, r0, lsr r2 @ r0<- r2 >> r2
rsb r3, r2, #32 @ r3<- 32 - r2
orr r0, r0, r1, asl r3 @ r0<- r0 | (r1 << (32-r2))
subs ip, r2, #32 @ ip<- r2 - 32
movpl r0, r1, lsr ip @ if r2 >= 32, r0<-r1 >>> (r2-32)
mov r1, r1, lsr r2 @ r1<- r1 >>> r2
bx lr