| /* |
| * 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_mips.S" |
| |
| #include "arch/quick_alloc_entrypoints.S" |
| |
| .set noreorder |
| .balign 4 |
| |
| /* Deliver the given exception */ |
| .extern artDeliverExceptionFromCode |
| /* Deliver an exception pending on a thread */ |
| .extern artDeliverPendingExceptionFromCode |
| |
| #define ARG_SLOT_SIZE 32 // space for a0-a3 plus 4 more words |
| |
| /* |
| * Macro that sets up the callee save frame to conform with |
| * Runtime::CreateCalleeSaveMethod(kSaveAll) |
| * Callee-save: $s0-$s8 + $gp + $ra, 11 total + 1 word for Method* |
| * Clobbers $t0 and $sp |
| * Allocates ARG_SLOT_SIZE bytes at the bottom of the stack for arg slots. |
| * Reserves FRAME_SIZE_SAVE_ALL_CALLEE_SAVE + ARG_SLOT_SIZE bytes on the stack |
| */ |
| .macro SETUP_SAVE_ALL_CALLEE_SAVE_FRAME |
| addiu $sp, $sp, -96 |
| .cfi_adjust_cfa_offset 96 |
| |
| // Ugly compile-time check, but we only have the preprocessor. |
| #if (FRAME_SIZE_SAVE_ALL_CALLEE_SAVE != 96) |
| #error "SAVE_ALL_CALLEE_SAVE_FRAME(MIPS) size not as expected." |
| #endif |
| |
| sw $ra, 92($sp) |
| .cfi_rel_offset 31, 92 |
| sw $s8, 88($sp) |
| .cfi_rel_offset 30, 88 |
| sw $gp, 84($sp) |
| .cfi_rel_offset 28, 84 |
| sw $s7, 80($sp) |
| .cfi_rel_offset 23, 80 |
| sw $s6, 76($sp) |
| .cfi_rel_offset 22, 76 |
| sw $s5, 72($sp) |
| .cfi_rel_offset 21, 72 |
| sw $s4, 68($sp) |
| .cfi_rel_offset 20, 68 |
| sw $s3, 64($sp) |
| .cfi_rel_offset 19, 64 |
| sw $s2, 60($sp) |
| .cfi_rel_offset 18, 60 |
| sw $s1, 56($sp) |
| .cfi_rel_offset 17, 56 |
| sw $s0, 52($sp) |
| .cfi_rel_offset 16, 52 |
| |
| SDu $f30, $f31, 44, $sp, $t1 |
| SDu $f28, $f29, 36, $sp, $t1 |
| SDu $f26, $f27, 28, $sp, $t1 |
| SDu $f24, $f25, 20, $sp, $t1 |
| SDu $f22, $f23, 12, $sp, $t1 |
| SDu $f20, $f21, 4, $sp, $t1 |
| |
| # 1 word for holding Method* |
| |
| lw $t0, %got(_ZN3art7Runtime9instance_E)($gp) |
| lw $t0, 0($t0) |
| THIS_LOAD_REQUIRES_READ_BARRIER |
| lw $t0, RUNTIME_SAVE_ALL_CALLEE_SAVE_FRAME_OFFSET($t0) |
| sw $t0, 0($sp) # Place Method* at bottom of stack. |
| sw $sp, THREAD_TOP_QUICK_FRAME_OFFSET(rSELF) # Place sp in Thread::Current()->top_quick_frame. |
| addiu $sp, $sp, -ARG_SLOT_SIZE # reserve argument slots on the stack |
| .cfi_adjust_cfa_offset ARG_SLOT_SIZE |
| .endm |
| |
| /* |
| * Macro that sets up the callee save frame to conform with |
| * Runtime::CreateCalleeSaveMethod(kRefsOnly). Restoration assumes non-moving GC. |
| * Does not include rSUSPEND or rSELF |
| * callee-save: $s2-$s8 + $gp + $ra, 9 total + 2 words padding + 1 word to hold Method* |
| * Clobbers $t0 and $sp |
| * Allocates ARG_SLOT_SIZE bytes at the bottom of the stack for arg slots. |
| * Reserves FRAME_SIZE_REFS_ONLY_CALLEE_SAVE + ARG_SLOT_SIZE bytes on the stack |
| */ |
| .macro SETUP_REFS_ONLY_CALLEE_SAVE_FRAME |
| addiu $sp, $sp, -48 |
| .cfi_adjust_cfa_offset 48 |
| |
| // Ugly compile-time check, but we only have the preprocessor. |
| #if (FRAME_SIZE_REFS_ONLY_CALLEE_SAVE != 48) |
| #error "REFS_ONLY_CALLEE_SAVE_FRAME(MIPS) size not as expected." |
| #endif |
| |
| sw $ra, 44($sp) |
| .cfi_rel_offset 31, 44 |
| sw $s8, 40($sp) |
| .cfi_rel_offset 30, 40 |
| sw $gp, 36($sp) |
| .cfi_rel_offset 28, 36 |
| sw $s7, 32($sp) |
| .cfi_rel_offset 23, 32 |
| sw $s6, 28($sp) |
| .cfi_rel_offset 22, 28 |
| sw $s5, 24($sp) |
| .cfi_rel_offset 21, 24 |
| sw $s4, 20($sp) |
| .cfi_rel_offset 20, 20 |
| sw $s3, 16($sp) |
| .cfi_rel_offset 19, 16 |
| sw $s2, 12($sp) |
| .cfi_rel_offset 18, 12 |
| # 2 words for alignment and bottom word will hold Method* |
| |
| lw $t0, %got(_ZN3art7Runtime9instance_E)($gp) |
| lw $t0, 0($t0) |
| THIS_LOAD_REQUIRES_READ_BARRIER |
| lw $t0, RUNTIME_REFS_ONLY_CALLEE_SAVE_FRAME_OFFSET($t0) |
| sw $t0, 0($sp) # Place Method* at bottom of stack. |
| sw $sp, THREAD_TOP_QUICK_FRAME_OFFSET(rSELF) # Place sp in Thread::Current()->top_quick_frame. |
| addiu $sp, $sp, -ARG_SLOT_SIZE # reserve argument slots on the stack |
| .cfi_adjust_cfa_offset ARG_SLOT_SIZE |
| .endm |
| |
| .macro RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME |
| addiu $sp, $sp, ARG_SLOT_SIZE # remove argument slots on the stack |
| .cfi_adjust_cfa_offset -ARG_SLOT_SIZE |
| lw $ra, 44($sp) |
| .cfi_restore 31 |
| lw $s8, 40($sp) |
| .cfi_restore 30 |
| lw $gp, 36($sp) |
| .cfi_restore 28 |
| lw $s7, 32($sp) |
| .cfi_restore 23 |
| lw $s6, 28($sp) |
| .cfi_restore 22 |
| lw $s5, 24($sp) |
| .cfi_restore 21 |
| lw $s4, 20($sp) |
| .cfi_restore 20 |
| lw $s3, 16($sp) |
| .cfi_restore 19 |
| lw $s2, 12($sp) |
| .cfi_restore 18 |
| addiu $sp, $sp, 48 |
| .cfi_adjust_cfa_offset -48 |
| .endm |
| |
| .macro RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME_AND_RETURN |
| RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME |
| jalr $zero, $ra |
| nop |
| .endm |
| |
| /* |
| * Macro that sets up the callee save frame to conform with |
| * Runtime::CreateCalleeSaveMethod(kRefsAndArgs). |
| * callee-save: $a1-$a3, $s2-$s8 + $gp + $ra, 12 total + 3 words padding + method* |
| */ |
| .macro SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME_REGISTERS_ONLY |
| addiu $sp, $sp, -64 |
| .cfi_adjust_cfa_offset 64 |
| |
| // Ugly compile-time check, but we only have the preprocessor. |
| #if (FRAME_SIZE_REFS_AND_ARGS_CALLEE_SAVE != 64) |
| #error "REFS_AND_ARGS_CALLEE_SAVE_FRAME(MIPS) size not as expected." |
| #endif |
| |
| sw $ra, 60($sp) |
| .cfi_rel_offset 31, 60 |
| sw $s8, 56($sp) |
| .cfi_rel_offset 30, 56 |
| sw $gp, 52($sp) |
| .cfi_rel_offset 28, 52 |
| sw $s7, 48($sp) |
| .cfi_rel_offset 23, 48 |
| sw $s6, 44($sp) |
| .cfi_rel_offset 22, 44 |
| sw $s5, 40($sp) |
| .cfi_rel_offset 21, 40 |
| sw $s4, 36($sp) |
| .cfi_rel_offset 20, 36 |
| sw $s3, 32($sp) |
| .cfi_rel_offset 19, 32 |
| sw $s2, 28($sp) |
| .cfi_rel_offset 18, 28 |
| sw $a3, 24($sp) |
| .cfi_rel_offset 7, 24 |
| sw $a2, 20($sp) |
| .cfi_rel_offset 6, 20 |
| sw $a1, 16($sp) |
| .cfi_rel_offset 5, 16 |
| # bottom will hold Method* |
| .endm |
| |
| /* |
| * Macro that sets up the callee save frame to conform with |
| * Runtime::CreateCalleeSaveMethod(kRefsAndArgs). Restoration assumes non-moving GC. |
| * callee-save: $a1-$a3, $s2-$s8 + $gp + $ra, 12 total + 3 words padding + method* |
| * Clobbers $t0 and $sp |
| * Allocates ARG_SLOT_SIZE bytes at the bottom of the stack for arg slots. |
| * Reserves FRAME_SIZE_REFS_AND_ARGS_CALLEE_SAVE + ARG_SLOT_SIZE bytes on the stack |
| */ |
| .macro SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME |
| SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME_REGISTERS_ONLY |
| lw $t0, %got(_ZN3art7Runtime9instance_E)($gp) |
| lw $t0, 0($t0) |
| THIS_LOAD_REQUIRES_READ_BARRIER |
| lw $t0, RUNTIME_REFS_AND_ARGS_CALLEE_SAVE_FRAME_OFFSET($t0) |
| sw $t0, 0($sp) # Place Method* at bottom of stack. |
| sw $sp, THREAD_TOP_QUICK_FRAME_OFFSET(rSELF) # Place sp in Thread::Current()->top_quick_frame. |
| addiu $sp, $sp, -ARG_SLOT_SIZE # reserve argument slots on the stack |
| .cfi_adjust_cfa_offset ARG_SLOT_SIZE |
| .endm |
| |
| /* |
| * Macro that sets up the callee save frame to conform with |
| * Runtime::CreateCalleeSaveMethod(kRefsAndArgs). Restoration assumes non-moving GC. |
| * callee-save: $a1-$a3, $s2-$s8 + $gp + $ra, 12 total + 3 words padding + method* |
| * Clobbers $sp |
| * Use $a0 as the Method* and loads it into bottom of stack. |
| * Allocates ARG_SLOT_SIZE bytes at the bottom of the stack for arg slots. |
| * Reserves FRAME_SIZE_REFS_AND_ARGS_CALLEE_SAVE + ARG_SLOT_SIZE bytes on the stack |
| */ |
| .macro SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME_WITH_METHOD_IN_A0 |
| SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME_REGISTERS_ONLY |
| sw $a0, 0($sp) # Place Method* at bottom of stack. |
| sw $sp, THREAD_TOP_QUICK_FRAME_OFFSET(rSELF) # Place sp in Thread::Current()->top_quick_frame. |
| addiu $sp, $sp, -ARG_SLOT_SIZE # reserve argument slots on the stack |
| .cfi_adjust_cfa_offset ARG_SLOT_SIZE |
| .endm |
| |
| .macro RESTORE_REFS_AND_ARGS_CALLEE_SAVE_FRAME |
| addiu $sp, $sp, ARG_SLOT_SIZE # remove argument slots on the stack |
| .cfi_adjust_cfa_offset -ARG_SLOT_SIZE |
| lw $ra, 60($sp) |
| .cfi_restore 31 |
| lw $s8, 56($sp) |
| .cfi_restore 30 |
| lw $gp, 52($sp) |
| .cfi_restore 28 |
| lw $s7, 48($sp) |
| .cfi_restore 23 |
| lw $s6, 44($sp) |
| .cfi_restore 22 |
| lw $s5, 40($sp) |
| .cfi_restore 21 |
| lw $s4, 36($sp) |
| .cfi_restore 20 |
| lw $s3, 32($sp) |
| .cfi_restore 19 |
| lw $s2, 28($sp) |
| .cfi_restore 18 |
| lw $a3, 24($sp) |
| .cfi_restore 7 |
| lw $a2, 20($sp) |
| .cfi_restore 6 |
| lw $a1, 16($sp) |
| .cfi_restore 5 |
| addiu $sp, $sp, 64 # pop frame |
| .cfi_adjust_cfa_offset -64 |
| .endm |
| |
| /* |
| * Macro that set calls through to artDeliverPendingExceptionFromCode, where the pending |
| * exception is Thread::Current()->exception_ |
| */ |
| .macro DELIVER_PENDING_EXCEPTION |
| SETUP_SAVE_ALL_CALLEE_SAVE_FRAME # save callee saves for throw |
| la $t9, artDeliverPendingExceptionFromCode |
| jalr $zero, $t9 # artDeliverPendingExceptionFromCode(Thread*) |
| move $a0, rSELF # pass Thread::Current |
| .endm |
| |
| .macro RETURN_IF_NO_EXCEPTION |
| lw $t0, THREAD_EXCEPTION_OFFSET(rSELF) # load Thread::Current()->exception_ |
| RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME |
| bnez $t0, 1f # success if no exception is pending |
| nop |
| jalr $zero, $ra |
| nop |
| 1: |
| DELIVER_PENDING_EXCEPTION |
| .endm |
| |
| .macro RETURN_IF_ZERO |
| RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME |
| bnez $v0, 1f # success? |
| nop |
| jalr $zero, $ra # return on success |
| nop |
| 1: |
| DELIVER_PENDING_EXCEPTION |
| .endm |
| |
| .macro RETURN_IF_RESULT_IS_NON_ZERO_OR_DELIVER |
| RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME |
| beqz $v0, 1f # success? |
| nop |
| jalr $zero, $ra # return on success |
| nop |
| 1: |
| DELIVER_PENDING_EXCEPTION |
| .endm |
| |
| /* |
| * On entry $a0 is uint32_t* gprs_ and $a1 is uint32_t* fprs_ |
| * FIXME: just guessing about the shape of the jmpbuf. Where will pc be? |
| */ |
| ENTRY art_quick_do_long_jump |
| LDu $f0, $f1, 0*8, $a1, $t1 |
| LDu $f2, $f3, 1*8, $a1, $t1 |
| LDu $f4, $f5, 2*8, $a1, $t1 |
| LDu $f6, $f7, 3*8, $a1, $t1 |
| LDu $f8, $f9, 4*8, $a1, $t1 |
| LDu $f10, $f11, 5*8, $a1, $t1 |
| LDu $f12, $f13, 6*8, $a1, $t1 |
| LDu $f14, $f15, 7*8, $a1, $t1 |
| LDu $f16, $f17, 8*8, $a1, $t1 |
| LDu $f18, $f19, 9*8, $a1, $t1 |
| LDu $f20, $f21, 10*8, $a1, $t1 |
| LDu $f22, $f23, 11*8, $a1, $t1 |
| LDu $f24, $f25, 12*8, $a1, $t1 |
| LDu $f26, $f27, 13*8, $a1, $t1 |
| LDu $f28, $f29, 14*8, $a1, $t1 |
| LDu $f30, $f31, 15*8, $a1, $t1 |
| |
| .set push |
| .set nomacro |
| .set noat |
| lw $at, 4($a0) |
| .set pop |
| lw $v0, 8($a0) |
| lw $v1, 12($a0) |
| lw $a1, 20($a0) |
| lw $a2, 24($a0) |
| lw $a3, 28($a0) |
| lw $t0, 32($a0) |
| lw $t1, 36($a0) |
| lw $t2, 40($a0) |
| lw $t3, 44($a0) |
| lw $t4, 48($a0) |
| lw $t5, 52($a0) |
| lw $t6, 56($a0) |
| lw $t7, 60($a0) |
| lw $s0, 64($a0) |
| lw $s1, 68($a0) |
| lw $s2, 72($a0) |
| lw $s3, 76($a0) |
| lw $s4, 80($a0) |
| lw $s5, 84($a0) |
| lw $s6, 88($a0) |
| lw $s7, 92($a0) |
| lw $t8, 96($a0) |
| lw $t9, 100($a0) |
| lw $gp, 112($a0) |
| lw $sp, 116($a0) |
| lw $fp, 120($a0) |
| lw $ra, 124($a0) |
| lw $a0, 16($a0) |
| move $v0, $zero # clear result registers r0 and r1 |
| jalr $zero, $ra # do long jump |
| move $v1, $zero |
| END art_quick_do_long_jump |
| |
| /* |
| * 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 a0 holds Throwable* |
| */ |
| ENTRY art_quick_deliver_exception |
| SETUP_SAVE_ALL_CALLEE_SAVE_FRAME |
| la $t9, artDeliverExceptionFromCode |
| jalr $zero, $t9 # artDeliverExceptionFromCode(Throwable*, Thread*) |
| move $a1, rSELF # pass Thread::Current |
| END art_quick_deliver_exception |
| |
| /* |
| * Called by managed code to create and deliver a NullPointerException |
| */ |
| .extern artThrowNullPointerExceptionFromCode |
| ENTRY art_quick_throw_null_pointer_exception |
| SETUP_SAVE_ALL_CALLEE_SAVE_FRAME |
| la $t9, artThrowNullPointerExceptionFromCode |
| jalr $zero, $t9 # artThrowNullPointerExceptionFromCode(Thread*) |
| move $a0, rSELF # pass Thread::Current |
| END art_quick_throw_null_pointer_exception |
| |
| /* |
| * Called by managed code to create and deliver an ArithmeticException |
| */ |
| .extern artThrowDivZeroFromCode |
| ENTRY art_quick_throw_div_zero |
| SETUP_SAVE_ALL_CALLEE_SAVE_FRAME |
| la $t9, artThrowDivZeroFromCode |
| jalr $zero, $t9 # artThrowDivZeroFromCode(Thread*) |
| move $a0, rSELF # pass Thread::Current |
| END art_quick_throw_div_zero |
| |
| /* |
| * Called by managed code to create and deliver an ArrayIndexOutOfBoundsException |
| */ |
| .extern artThrowArrayBoundsFromCode |
| ENTRY art_quick_throw_array_bounds |
| SETUP_SAVE_ALL_CALLEE_SAVE_FRAME |
| la $t9, artThrowArrayBoundsFromCode |
| jalr $zero, $t9 # artThrowArrayBoundsFromCode(index, limit, Thread*) |
| move $a2, rSELF # pass Thread::Current |
| END art_quick_throw_array_bounds |
| |
| /* |
| * Called by managed code to create and deliver a StackOverflowError. |
| */ |
| .extern artThrowStackOverflowFromCode |
| ENTRY art_quick_throw_stack_overflow |
| SETUP_SAVE_ALL_CALLEE_SAVE_FRAME |
| la $t9, artThrowStackOverflowFromCode |
| jalr $zero, $t9 # artThrowStackOverflowFromCode(Thread*) |
| move $a0, rSELF # pass Thread::Current |
| END art_quick_throw_stack_overflow |
| |
| /* |
| * Called by managed code to create and deliver a NoSuchMethodError. |
| */ |
| .extern artThrowNoSuchMethodFromCode |
| ENTRY art_quick_throw_no_such_method |
| SETUP_SAVE_ALL_CALLEE_SAVE_FRAME |
| la $t9, artThrowNoSuchMethodFromCode |
| jalr $zero, $t9 # artThrowNoSuchMethodFromCode(method_idx, Thread*) |
| move $a1, rSELF # pass Thread::Current |
| END art_quick_throw_no_such_method |
| |
| /* |
| * All generated callsites for interface invokes and invocation slow paths will load arguments |
| * as usual - except instead of loading arg0/$a0 with the target Method*, arg0/$a0 will contain |
| * the method_idx. This wrapper will save arg1-arg3, and call the appropriate C helper. |
| * NOTE: "this" is first visable argument of the target, and so can be found in arg1/$a1. |
| * |
| * The helper will attempt to locate the target and return a 64-bit result in $v0/$v1 consisting |
| * of the target Method* in $v0 and method->code_ in $v1. |
| * |
| * If unsuccessful, the helper will return null/null. There will be a 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_BODY cxx_name |
| .extern \cxx_name |
| SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME # save callee saves in case allocation triggers GC |
| move $a2, rSELF # pass Thread::Current |
| jal \cxx_name # (method_idx, this, Thread*, $sp) |
| addiu $a3, $sp, ARG_SLOT_SIZE # pass $sp (remove arg slots) |
| move $a0, $v0 # save target Method* |
| RESTORE_REFS_AND_ARGS_CALLEE_SAVE_FRAME |
| beqz $v0, 1f |
| move $t9, $v1 # save $v0->code_ |
| jalr $zero, $t9 |
| nop |
| 1: |
| DELIVER_PENDING_EXCEPTION |
| .endm |
| .macro INVOKE_TRAMPOLINE c_name, cxx_name |
| ENTRY \c_name |
| INVOKE_TRAMPOLINE_BODY \cxx_name |
| END \c_name |
| .endm |
| |
| 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 |
| |
| /* |
| * Invocation stub for quick code. |
| * On entry: |
| * a0 = method pointer |
| * a1 = argument array or null for no argument methods |
| * a2 = size of argument array in bytes |
| * a3 = (managed) thread pointer |
| * [sp + 16] = JValue* result |
| * [sp + 20] = shorty |
| */ |
| ENTRY art_quick_invoke_stub |
| sw $a0, 0($sp) # save out a0 |
| addiu $sp, $sp, -16 # spill s0, s1, fp, ra |
| .cfi_adjust_cfa_offset 16 |
| sw $ra, 12($sp) |
| .cfi_rel_offset 31, 12 |
| sw $fp, 8($sp) |
| .cfi_rel_offset 30, 8 |
| sw $s1, 4($sp) |
| .cfi_rel_offset 17, 4 |
| sw $s0, 0($sp) |
| .cfi_rel_offset 16, 0 |
| move $fp, $sp # save sp in fp |
| .cfi_def_cfa_register 30 |
| move $s1, $a3 # move managed thread pointer into s1 |
| addiu $s0, $zero, SUSPEND_CHECK_INTERVAL # reset s0 to suspend check interval |
| addiu $t0, $a2, 4 # create space for method pointer in frame. |
| subu $t0, $sp, $t0 # reserve & align *stack* to 16 bytes: |
| srl $t0, $t0, 4 # native calling convention only aligns to 8B, |
| sll $sp, $t0, 4 # so we have to ensure ART 16B alignment ourselves. |
| addiu $a0, $sp, 4 # pass stack pointer + method ptr as dest for memcpy |
| jal memcpy # (dest, src, bytes) |
| addiu $sp, $sp, -16 # make space for argument slots for memcpy |
| addiu $sp, $sp, 16 # restore stack after memcpy |
| lw $a0, 16($fp) # restore method* |
| lw $a1, 4($sp) # copy arg value for a1 |
| lw $a2, 8($sp) # copy arg value for a2 |
| lw $a3, 12($sp) # copy arg value for a3 |
| lw $t9, ART_METHOD_QUICK_CODE_OFFSET_32($a0) # get pointer to the code |
| jalr $t9 # call the method |
| sw $zero, 0($sp) # store null for method* at bottom of frame |
| move $sp, $fp # restore the stack |
| lw $s0, 0($sp) |
| .cfi_restore 16 |
| lw $s1, 4($sp) |
| .cfi_restore 17 |
| lw $fp, 8($sp) |
| .cfi_restore 30 |
| lw $ra, 12($sp) |
| .cfi_restore 31 |
| addiu $sp, $sp, 16 |
| .cfi_adjust_cfa_offset -16 |
| lw $t0, 16($sp) # get result pointer |
| lw $t1, 20($sp) # get shorty |
| lb $t1, 0($t1) # get result type char |
| li $t2, 68 # put char 'D' into t2 |
| beq $t1, $t2, 1f # branch if result type char == 'D' |
| li $t3, 70 # put char 'F' into t3 |
| beq $t1, $t3, 1f # branch if result type char == 'F' |
| sw $v0, 0($t0) # store the result |
| jalr $zero, $ra |
| sw $v1, 4($t0) # store the other half of the result |
| 1: |
| SDu $f0, $f1, 0, $t0, $t1 # store floating point result |
| jalr $zero, $ra |
| nop |
| END art_quick_invoke_stub |
| |
| /* |
| * Entry from managed code that calls artHandleFillArrayDataFromCode and delivers exception on |
| * failure. |
| */ |
| .extern artHandleFillArrayDataFromCode |
| ENTRY art_quick_handle_fill_data |
| lw $a2, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case exception allocation triggers GC |
| jal artHandleFillArrayDataFromCode # (payload offset, Array*, method, Thread*) |
| move $a3, rSELF # pass Thread::Current |
| RETURN_IF_ZERO |
| END art_quick_handle_fill_data |
| |
| /* |
| * Entry from managed code that calls artLockObjectFromCode, may block for GC. |
| */ |
| .extern artLockObjectFromCode |
| ENTRY art_quick_lock_object |
| beqz $a0, .Lart_quick_throw_null_pointer_exception_gp_set |
| nop |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case we block |
| jal artLockObjectFromCode # (Object* obj, Thread*) |
| move $a1, rSELF # pass Thread::Current |
| RETURN_IF_ZERO |
| END art_quick_lock_object |
| |
| /* |
| * Entry from managed code that calls artUnlockObjectFromCode and delivers exception on failure. |
| */ |
| .extern artUnlockObjectFromCode |
| ENTRY art_quick_unlock_object |
| beqz $a0, .Lart_quick_throw_null_pointer_exception_gp_set |
| nop |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case exception allocation triggers GC |
| jal artUnlockObjectFromCode # (Object* obj, Thread*) |
| move $a1, rSELF # pass Thread::Current |
| RETURN_IF_ZERO |
| END art_quick_unlock_object |
| |
| /* |
| * Entry from managed code that calls artCheckCastFromCode and delivers exception on failure. |
| */ |
| .extern artThrowClassCastException |
| ENTRY art_quick_check_cast |
| addiu $sp, $sp, -16 |
| .cfi_adjust_cfa_offset 16 |
| sw $ra, 12($sp) |
| .cfi_rel_offset 31, 12 |
| sw $t9, 8($sp) |
| sw $a1, 4($sp) |
| sw $a0, 0($sp) |
| jal artIsAssignableFromCode |
| addiu $sp, $sp, -16 # reserve argument slots on the stack |
| addiu $sp, $sp, 16 |
| beqz $v0, .Lthrow_class_cast_exception |
| lw $ra, 12($sp) |
| jalr $zero, $ra |
| addiu $sp, $sp, 16 |
| .cfi_adjust_cfa_offset -16 |
| .Lthrow_class_cast_exception: |
| lw $t9, 8($sp) |
| lw $a1, 4($sp) |
| lw $a0, 0($sp) |
| addiu $sp, $sp, 16 |
| .cfi_adjust_cfa_offset -16 |
| SETUP_SAVE_ALL_CALLEE_SAVE_FRAME |
| la $t9, artThrowClassCastException |
| jalr $zero, $t9 # artThrowClassCastException (Class*, Class*, Thread*) |
| move $a2, rSELF # pass Thread::Current |
| END 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. |
| * a0 = array, a1 = index, a2 = value |
| */ |
| ENTRY art_quick_aput_obj_with_null_and_bound_check |
| bnez $a0, .Lart_quick_aput_obj_with_bound_check_gp_set |
| nop |
| b .Lart_quick_throw_null_pointer_exception_gp_set |
| nop |
| END art_quick_aput_obj_with_null_and_bound_check |
| |
| ENTRY art_quick_aput_obj_with_bound_check |
| lw $t0, MIRROR_ARRAY_LENGTH_OFFSET($a0) |
| sltu $t1, $a1, $t0 |
| bnez $t1, .Lart_quick_aput_obj_gp_set |
| nop |
| move $a0, $a1 |
| b .Lart_quick_throw_array_bounds_gp_set |
| move $a1, $t0 |
| END art_quick_aput_obj_with_bound_check |
| |
| ENTRY art_quick_aput_obj |
| beqz $a2, .Ldo_aput_null |
| nop |
| lw $t0, MIRROR_OBJECT_CLASS_OFFSET($a0) |
| UNPOISON_HEAP_REF $t0 |
| lw $t1, MIRROR_OBJECT_CLASS_OFFSET($a2) |
| UNPOISON_HEAP_REF $t1 |
| lw $t0, MIRROR_CLASS_COMPONENT_TYPE_OFFSET($t0) |
| UNPOISON_HEAP_REF $t0 |
| bne $t1, $t0, .Lcheck_assignability # value's type == array's component type - trivial assignability |
| nop |
| .Ldo_aput: |
| sll $a1, $a1, 2 |
| add $t0, $a0, $a1 |
| POISON_HEAP_REF $a2 |
| sw $a2, MIRROR_OBJECT_ARRAY_DATA_OFFSET($t0) |
| lw $t0, THREAD_CARD_TABLE_OFFSET(rSELF) |
| srl $t1, $a0, 7 |
| add $t1, $t1, $t0 |
| sb $t0, ($t1) |
| jalr $zero, $ra |
| nop |
| .Ldo_aput_null: |
| sll $a1, $a1, 2 |
| add $t0, $a0, $a1 |
| sw $a2, MIRROR_OBJECT_ARRAY_DATA_OFFSET($t0) |
| jalr $zero, $ra |
| nop |
| .Lcheck_assignability: |
| addiu $sp, $sp, -32 |
| .cfi_adjust_cfa_offset 32 |
| sw $ra, 28($sp) |
| .cfi_rel_offset 31, 28 |
| sw $t9, 12($sp) |
| sw $a2, 8($sp) |
| sw $a1, 4($sp) |
| sw $a0, 0($sp) |
| move $a1, $t1 |
| move $a0, $t0 |
| jal artIsAssignableFromCode # (Class*, Class*) |
| addiu $sp, $sp, -16 # reserve argument slots on the stack |
| addiu $sp, $sp, 16 |
| lw $ra, 28($sp) |
| lw $t9, 12($sp) |
| lw $a2, 8($sp) |
| lw $a1, 4($sp) |
| lw $a0, 0($sp) |
| addiu $sp, 32 |
| .cfi_adjust_cfa_offset -32 |
| bnez $v0, .Ldo_aput |
| nop |
| SETUP_SAVE_ALL_CALLEE_SAVE_FRAME |
| move $a1, $a2 |
| la $t9, artThrowArrayStoreException |
| jalr $zero, $t9 # artThrowArrayStoreException(Class*, Class*, Thread*) |
| move $a2, rSELF # pass Thread::Current |
| END art_quick_aput_obj |
| |
| /* |
| * Called by managed code to resolve a static field and load a boolean primitive value. |
| */ |
| .extern artGetBooleanStaticFromCode |
| ENTRY art_quick_get_boolean_static |
| lw $a1, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artGetBooleanStaticFromCode # (uint32_t field_idx, const Method* referrer, Thread*) |
| move $a2, rSELF # pass Thread::Current |
| RETURN_IF_NO_EXCEPTION |
| END art_quick_get_boolean_static |
| /* |
| * Called by managed code to resolve a static field and load a byte primitive value. |
| */ |
| .extern artGetByteStaticFromCode |
| ENTRY art_quick_get_byte_static |
| lw $a1, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artGetByteStaticFromCode # (uint32_t field_idx, const Method* referrer, Thread*) |
| move $a2, rSELF # pass Thread::Current |
| RETURN_IF_NO_EXCEPTION |
| END art_quick_get_byte_static |
| |
| /* |
| * Called by managed code to resolve a static field and load a char primitive value. |
| */ |
| .extern artGetCharStaticFromCode |
| ENTRY art_quick_get_char_static |
| lw $a1, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artGetCharStaticFromCode # (uint32_t field_idx, const Method* referrer, Thread*) |
| move $a2, rSELF # pass Thread::Current |
| RETURN_IF_NO_EXCEPTION |
| END art_quick_get_char_static |
| /* |
| * Called by managed code to resolve a static field and load a short primitive value. |
| */ |
| .extern artGetShortStaticFromCode |
| ENTRY art_quick_get_short_static |
| lw $a1, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artGetShortStaticFromCode # (uint32_t field_idx, const Method* referrer, Thread*) |
| move $a2, rSELF # pass Thread::Current |
| RETURN_IF_NO_EXCEPTION |
| END art_quick_get_short_static |
| |
| /* |
| * Called by managed code to resolve a static field and load a 32-bit primitive value. |
| */ |
| .extern artGet32StaticFromCode |
| ENTRY art_quick_get32_static |
| lw $a1, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artGet32StaticFromCode # (uint32_t field_idx, const Method* referrer, Thread*) |
| move $a2, rSELF # pass Thread::Current |
| RETURN_IF_NO_EXCEPTION |
| END art_quick_get32_static |
| |
| /* |
| * Called by managed code to resolve a static field and load a 64-bit primitive value. |
| */ |
| .extern artGet64StaticFromCode |
| ENTRY art_quick_get64_static |
| lw $a1, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artGet64StaticFromCode # (uint32_t field_idx, const Method* referrer, Thread*) |
| move $a2, rSELF # pass Thread::Current |
| RETURN_IF_NO_EXCEPTION |
| END art_quick_get64_static |
| |
| /* |
| * Called by managed code to resolve a static field and load an object reference. |
| */ |
| .extern artGetObjStaticFromCode |
| ENTRY art_quick_get_obj_static |
| lw $a1, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artGetObjStaticFromCode # (uint32_t field_idx, const Method* referrer, Thread*) |
| move $a2, rSELF # pass Thread::Current |
| RETURN_IF_NO_EXCEPTION |
| END art_quick_get_obj_static |
| |
| /* |
| * Called by managed code to resolve an instance field and load a boolean primitive value. |
| */ |
| .extern artGetBooleanInstanceFromCode |
| ENTRY art_quick_get_boolean_instance |
| lw $a2, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artGetBooleanInstanceFromCode # (field_idx, Object*, referrer, Thread*) |
| move $a3, rSELF # pass Thread::Current |
| RETURN_IF_NO_EXCEPTION |
| END art_quick_get_boolean_instance |
| /* |
| * Called by managed code to resolve an instance field and load a byte primitive value. |
| */ |
| .extern artGetByteInstanceFromCode |
| ENTRY art_quick_get_byte_instance |
| lw $a2, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artGetByteInstanceFromCode # (field_idx, Object*, referrer, Thread*) |
| move $a3, rSELF # pass Thread::Current |
| RETURN_IF_NO_EXCEPTION |
| END art_quick_get_byte_instance |
| |
| /* |
| * Called by managed code to resolve an instance field and load a char primitive value. |
| */ |
| .extern artGetCharInstanceFromCode |
| ENTRY art_quick_get_char_instance |
| lw $a2, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artGetCharInstanceFromCode # (field_idx, Object*, referrer, Thread*) |
| move $a3, rSELF # pass Thread::Current |
| RETURN_IF_NO_EXCEPTION |
| END art_quick_get_char_instance |
| /* |
| * Called by managed code to resolve an instance field and load a short primitive value. |
| */ |
| .extern artGetShortInstanceFromCode |
| ENTRY art_quick_get_short_instance |
| lw $a2, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artGetShortInstanceFromCode # (field_idx, Object*, referrer, Thread*) |
| move $a3, rSELF # pass Thread::Current |
| RETURN_IF_NO_EXCEPTION |
| END art_quick_get_short_instance |
| |
| /* |
| * Called by managed code to resolve an instance field and load a 32-bit primitive value. |
| */ |
| .extern artGet32InstanceFromCode |
| ENTRY art_quick_get32_instance |
| lw $a2, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artGet32InstanceFromCode # (field_idx, Object*, referrer, Thread*) |
| move $a3, rSELF # pass Thread::Current |
| RETURN_IF_NO_EXCEPTION |
| END art_quick_get32_instance |
| |
| /* |
| * Called by managed code to resolve an instance field and load a 64-bit primitive value. |
| */ |
| .extern artGet64InstanceFromCode |
| ENTRY art_quick_get64_instance |
| lw $a2, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artGet64InstanceFromCode # (field_idx, Object*, referrer, Thread*) |
| move $a3, rSELF # pass Thread::Current |
| RETURN_IF_NO_EXCEPTION |
| END art_quick_get64_instance |
| |
| /* |
| * Called by managed code to resolve an instance field and load an object reference. |
| */ |
| .extern artGetObjInstanceFromCode |
| ENTRY art_quick_get_obj_instance |
| lw $a2, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artGetObjInstanceFromCode # (field_idx, Object*, referrer, Thread*) |
| move $a3, rSELF # pass Thread::Current |
| RETURN_IF_NO_EXCEPTION |
| END art_quick_get_obj_instance |
| |
| /* |
| * Called by managed code to resolve a static field and store a 8-bit primitive value. |
| */ |
| .extern artSet8StaticFromCode |
| ENTRY art_quick_set8_static |
| lw $a2, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artSet8StaticFromCode # (field_idx, new_val, referrer, Thread*) |
| move $a3, rSELF # pass Thread::Current |
| RETURN_IF_ZERO |
| END art_quick_set8_static |
| |
| /* |
| * Called by managed code to resolve a static field and store a 16-bit primitive value. |
| */ |
| .extern artSet16StaticFromCode |
| ENTRY art_quick_set16_static |
| lw $a2, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artSet16StaticFromCode # (field_idx, new_val, referrer, Thread*, $sp) |
| move $a3, rSELF # pass Thread::Current |
| RETURN_IF_ZERO |
| END art_quick_set16_static |
| |
| /* |
| * Called by managed code to resolve a static field and store a 32-bit primitive value. |
| */ |
| .extern artSet32StaticFromCode |
| ENTRY art_quick_set32_static |
| lw $a2, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artSet32StaticFromCode # (field_idx, new_val, referrer, Thread*) |
| move $a3, rSELF # pass Thread::Current |
| RETURN_IF_ZERO |
| END art_quick_set32_static |
| |
| /* |
| * Called by managed code to resolve a static field and store a 64-bit primitive value. |
| */ |
| .extern artSet64StaticFromCode |
| ENTRY art_quick_set64_static |
| lw $a1, 0($sp) # pass referrer's Method* |
| # 64 bit new_val is in a2:a3 pair |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artSet64StaticFromCode # (field_idx, referrer, new_val, Thread*) |
| sw rSELF, 16($sp) # pass Thread::Current |
| RETURN_IF_ZERO |
| END art_quick_set64_static |
| |
| /* |
| * Called by managed code to resolve a static field and store an object reference. |
| */ |
| .extern artSetObjStaticFromCode |
| ENTRY art_quick_set_obj_static |
| lw $a2, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| move $a3, rSELF # pass Thread::Current |
| jal artSetObjStaticFromCode # (field_idx, new_val, referrer, Thread*) |
| RETURN_IF_ZERO |
| END art_quick_set_obj_static |
| |
| /* |
| * Called by managed code to resolve an instance field and store a 8-bit primitive value. |
| */ |
| .extern artSet8InstanceFromCode |
| ENTRY art_quick_set8_instance |
| lw $a3, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artSet8InstanceFromCode # (field_idx, Object*, new_val, referrer, Thread*) |
| sw rSELF, 16($sp) # pass Thread::Current |
| RETURN_IF_ZERO |
| END art_quick_set8_instance |
| |
| /* |
| * Called by managed code to resolve an instance field and store a 16-bit primitive value. |
| */ |
| .extern artSet16InstanceFromCode |
| ENTRY art_quick_set16_instance |
| lw $a3, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artSet16InstanceFromCode # (field_idx, Object*, new_val, referrer, Thread*) |
| sw rSELF, 16($sp) # pass Thread::Current |
| RETURN_IF_ZERO |
| END art_quick_set16_instance |
| |
| /* |
| * Called by managed code to resolve an instance field and store a 32-bit primitive value. |
| */ |
| .extern artSet32InstanceFromCode |
| ENTRY art_quick_set32_instance |
| lw $a3, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artSet32InstanceFromCode # (field_idx, Object*, new_val, referrer, Thread*) |
| sw rSELF, 16($sp) # pass Thread::Current |
| RETURN_IF_ZERO |
| END art_quick_set32_instance |
| |
| /* |
| * Called by managed code to resolve an instance field and store a 64-bit primitive value. |
| */ |
| .extern artSet64InstanceFromCode |
| ENTRY art_quick_set64_instance |
| lw $t1, 0($sp) # load referrer's Method* |
| # 64 bit new_val is in a2:a3 pair |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| sw rSELF, 20($sp) # pass Thread::Current |
| jal artSet64InstanceFromCode # (field_idx, Object*, new_val, referrer, Thread*) |
| sw $t1, 16($sp) # pass referrer's Method* |
| RETURN_IF_ZERO |
| END art_quick_set64_instance |
| |
| /* |
| * Called by managed code to resolve an instance field and store an object reference. |
| */ |
| .extern artSetObjInstanceFromCode |
| ENTRY art_quick_set_obj_instance |
| lw $a3, 0($sp) # pass referrer's Method* |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal artSetObjInstanceFromCode # (field_idx, Object*, new_val, referrer, Thread*) |
| sw rSELF, 16($sp) # pass Thread::Current |
| RETURN_IF_ZERO |
| END art_quick_set_obj_instance |
| |
| // Macro to facilitate adding new allocation entrypoints. |
| .macro ONE_ARG_DOWNCALL name, entrypoint, return |
| .extern \entrypoint |
| ENTRY \name |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal \entrypoint |
| move $a1, rSELF # pass Thread::Current |
| \return |
| END \name |
| .endm |
| |
| .macro TWO_ARG_DOWNCALL name, entrypoint, return |
| .extern \entrypoint |
| ENTRY \name |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal \entrypoint |
| move $a2, rSELF # pass Thread::Current |
| \return |
| END \name |
| .endm |
| |
| .macro THREE_ARG_DOWNCALL name, entrypoint, return |
| .extern \entrypoint |
| ENTRY \name |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal \entrypoint |
| move $a3, rSELF # pass Thread::Current |
| \return |
| END \name |
| .endm |
| |
| .macro FOUR_ARG_DOWNCALL name, entrypoint, return |
| .extern \entrypoint |
| ENTRY \name |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves in case of GC |
| jal \entrypoint |
| sw rSELF, 16($sp) # pass Thread::Current |
| \return |
| END \name |
| .endm |
| |
| // Generate the allocation entrypoints for each allocator. |
| GENERATE_ALL_ALLOC_ENTRYPOINTS |
| |
| /* |
| * 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. A0 holds the string index. The fast |
| * path check for hit in strings cache has already been performed. |
| */ |
| ONE_ARG_DOWNCALL art_quick_resolve_string, artResolveStringFromCode, RETURN_IF_RESULT_IS_NON_ZERO_OR_DELIVER |
| |
| /* |
| * 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. |
| */ |
| ONE_ARG_DOWNCALL art_quick_initialize_static_storage, artInitializeStaticStorageFromCode, RETURN_IF_RESULT_IS_NON_ZERO_OR_DELIVER |
| |
| /* |
| * Entry from managed code when dex cache misses for a type_idx. |
| */ |
| ONE_ARG_DOWNCALL art_quick_initialize_type, artInitializeTypeFromCode, RETURN_IF_RESULT_IS_NON_ZERO_OR_DELIVER |
| |
| /* |
| * Entry from managed code when type_idx needs to be checked for access and dex cache may also |
| * miss. |
| */ |
| ONE_ARG_DOWNCALL art_quick_initialize_type_and_verify_access, artInitializeTypeAndVerifyAccessFromCode, RETURN_IF_RESULT_IS_NON_ZERO_OR_DELIVER |
| |
| /* |
| * Called by managed code when the value in rSUSPEND has been decremented to 0. |
| */ |
| .extern artTestSuspendFromCode |
| ENTRY art_quick_test_suspend |
| lh $a0, THREAD_FLAGS_OFFSET(rSELF) |
| bnez $a0, 1f |
| addiu rSUSPEND, $zero, SUSPEND_CHECK_INTERVAL # reset rSUSPEND to SUSPEND_CHECK_INTERVAL |
| jalr $zero, $ra |
| nop |
| 1: |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME # save callee saves for stack crawl |
| jal artTestSuspendFromCode # (Thread*) |
| move $a0, rSELF |
| RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME_AND_RETURN |
| END art_quick_test_suspend |
| |
| /* |
| * 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. |
| */ |
| .extern artQuickProxyInvokeHandler |
| ENTRY art_quick_proxy_invoke_handler |
| SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME_WITH_METHOD_IN_A0 |
| move $a2, rSELF # pass Thread::Current |
| jal artQuickProxyInvokeHandler # (Method* proxy method, receiver, Thread*, SP) |
| addiu $a3, $sp, ARG_SLOT_SIZE # pass $sp (remove arg slots) |
| lw $t0, THREAD_EXCEPTION_OFFSET(rSELF) # load Thread::Current()->exception_ |
| RESTORE_REFS_AND_ARGS_CALLEE_SAVE_FRAME |
| bnez $t0, 1f |
| # don't care if $v0 and/or $v1 are modified, when exception branch taken |
| MTD $v0, $v1, $f0, $f1 # move float value to return value |
| jalr $zero, $ra |
| nop |
| 1: |
| DELIVER_PENDING_EXCEPTION |
| END art_quick_proxy_invoke_handler |
| |
| /* |
| * Called to resolve an imt conflict. t0 is a hidden argument that holds the target method's |
| * dex method index. |
| */ |
| ENTRY art_quick_imt_conflict_trampoline |
| move $a0, $t0 |
| INVOKE_TRAMPOLINE_BODY artInvokeInterfaceTrampoline |
| END art_quick_imt_conflict_trampoline |
| |
| .extern artQuickResolutionTrampoline |
| ENTRY art_quick_resolution_trampoline |
| SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME |
| move $a2, rSELF # pass Thread::Current |
| jal artQuickResolutionTrampoline # (Method* called, receiver, Thread*, SP) |
| addiu $a3, $sp, ARG_SLOT_SIZE # pass $sp (remove arg slots) |
| beqz $v0, 1f |
| lw $a0, ARG_SLOT_SIZE($sp) # load resolved method to $a0 |
| RESTORE_REFS_AND_ARGS_CALLEE_SAVE_FRAME |
| move $t9, $v0 # code pointer must be in $t9 to generate the global pointer |
| jalr $zero, $t9 # tail call to method |
| nop |
| 1: |
| RESTORE_REFS_AND_ARGS_CALLEE_SAVE_FRAME |
| DELIVER_PENDING_EXCEPTION |
| END art_quick_resolution_trampoline |
| |
| .extern artQuickGenericJniTrampoline |
| .extern artQuickGenericJniEndTrampoline |
| ENTRY art_quick_generic_jni_trampoline |
| SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME_WITH_METHOD_IN_A0 |
| move $s8, $sp # save $sp to $s8 |
| move $s3, $gp # save $gp to $s3 |
| |
| # prepare for call to artQuickGenericJniTrampoline(Thread*, SP) |
| move $a0, rSELF # pass Thread::Current |
| addiu $a1, $sp, ARG_SLOT_SIZE # save $sp (remove arg slots) |
| jal artQuickGenericJniTrampoline # (Thread*, SP) |
| addiu $sp, $sp, -5120 # reserve space on the stack |
| |
| # The C call will have registered the complete save-frame on success. |
| # The result of the call is: |
| # v0: ptr to native code, 0 on error. |
| # v1: ptr to the bottom of the used area of the alloca, can restore stack till here. |
| beq $v0, $zero, 1f # check entry error |
| move $t9, $v0 # save the code ptr |
| move $sp, $v1 # release part of the alloca |
| |
| # Load parameters from stack into registers |
| lw $a0, 0($sp) |
| lw $a1, 4($sp) |
| lw $a2, 8($sp) |
| |
| # Load FPRs the same as GPRs. Look at BuildNativeCallFrameStateMachine. |
| jalr $t9 # native call |
| lw $a3, 12($sp) |
| addiu $sp, $sp, 16 # remove arg slots |
| |
| move $gp, $s3 # restore $gp from $s3 |
| |
| # result sign extension is handled in C code |
| # prepare for call to artQuickGenericJniEndTrampoline(Thread*, result, result_f) |
| move $a0, rSELF # pass Thread::Current |
| move $a2, $v0 # pass result |
| move $a3, $v1 |
| addiu $sp, $sp, -24 # reserve arg slots |
| jal artQuickGenericJniEndTrampoline |
| s.d $f0, 16($sp) # pass result_f |
| |
| lw $t0, THREAD_EXCEPTION_OFFSET(rSELF) # load Thread::Current()->exception_ |
| bne $t0, $zero, 1f # check for pending exceptions |
| |
| move $sp, $s8 # tear down the alloca |
| |
| # tear dpown the callee-save frame |
| RESTORE_REFS_AND_ARGS_CALLEE_SAVE_FRAME |
| |
| MTD $v0, $v1, $f0, $f1 # move float value to return value |
| jalr $zero, $ra |
| nop |
| |
| 1: |
| lw $sp, THREAD_TOP_QUICK_FRAME_OFFSET(rSELF) |
| # This will create a new save-all frame, required by the runtime. |
| DELIVER_PENDING_EXCEPTION |
| END art_quick_generic_jni_trampoline |
| |
| .extern artQuickToInterpreterBridge |
| ENTRY art_quick_to_interpreter_bridge |
| SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME |
| move $a1, rSELF # pass Thread::Current |
| jal artQuickToInterpreterBridge # (Method* method, Thread*, SP) |
| addiu $a2, $sp, ARG_SLOT_SIZE # pass $sp (remove arg slots) |
| lw $t0, THREAD_EXCEPTION_OFFSET(rSELF) # load Thread::Current()->exception_ |
| RESTORE_REFS_AND_ARGS_CALLEE_SAVE_FRAME |
| bnez $t0, 1f |
| # don't care if $v0 and/or $v1 are modified, when exception branch taken |
| MTD $v0, $v1, $f0, $f1 # move float value to return value |
| jalr $zero, $ra |
| nop |
| 1: |
| DELIVER_PENDING_EXCEPTION |
| END art_quick_to_interpreter_bridge |
| |
| /* |
| * Routine that intercepts method calls and returns. |
| */ |
| .extern artInstrumentationMethodEntryFromCode |
| .extern artInstrumentationMethodExitFromCode |
| ENTRY art_quick_instrumentation_entry |
| SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME |
| sw $a0, 28($sp) # save arg0 in free arg slot |
| move $a3, $ra # pass $ra |
| jal artInstrumentationMethodEntryFromCode # (Method*, Object*, Thread*, LR) |
| move $a2, rSELF # pass Thread::Current |
| move $t9, $v0 # $t9 holds reference to code |
| lw $a0, 28($sp) # restore arg0 from free arg slot |
| RESTORE_REFS_AND_ARGS_CALLEE_SAVE_FRAME |
| jalr $t9 # call method |
| nop |
| END art_quick_instrumentation_entry |
| /* intentional fallthrough */ |
| .global art_quick_instrumentation_exit |
| art_quick_instrumentation_exit: |
| .cfi_startproc |
| addiu $t9, $ra, 4 # put current address into $t9 to rebuild $gp |
| .cpload $t9 |
| move $ra, $zero # link register is to here, so clobber with 0 for later checks |
| |
| SETUP_REFS_ONLY_CALLEE_SAVE_FRAME |
| addiu $sp, $sp, -16 # allocate temp storage on the stack |
| .cfi_adjust_cfa_offset 16 |
| sw $v0, ARG_SLOT_SIZE+12($sp) |
| .cfi_rel_offset 2, ARG_SLOT_SIZE+12 |
| sw $v1, ARG_SLOT_SIZE+8($sp) |
| .cfi_rel_offset 3, ARG_SLOT_SIZE+8 |
| s.d $f0, ARG_SLOT_SIZE($sp) |
| s.d $f0, 16($sp) # pass fpr result |
| move $a2, $v0 # pass gpr result |
| move $a3, $v1 |
| addiu $a1, $sp, ARG_SLOT_SIZE+16 # pass $sp (remove arg slots and temp storage) |
| jal artInstrumentationMethodExitFromCode # (Thread*, SP, gpr_res, fpr_res) |
| move $a0, rSELF # pass Thread::Current |
| move $t9, $v0 # set aside returned link register |
| move $ra, $v1 # set link register for deoptimization |
| lw $v0, ARG_SLOT_SIZE+12($sp) # restore return values |
| lw $v1, ARG_SLOT_SIZE+8($sp) |
| l.d $f0, ARG_SLOT_SIZE($sp) |
| jalr $zero, $t9 # return |
| addiu $sp, $sp, ARG_SLOT_SIZE+FRAME_SIZE_REFS_ONLY_CALLEE_SAVE+16 # restore stack |
| .cfi_adjust_cfa_offset -(ARG_SLOT_SIZE+FRAME_SIZE_REFS_ONLY_CALLEE_SAVE+16) |
| END 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. |
| */ |
| .extern artDeoptimize |
| ENTRY art_quick_deoptimize |
| SETUP_SAVE_ALL_CALLEE_SAVE_FRAME |
| jal artDeoptimize # artDeoptimize(Thread*) |
| # Returns caller method's frame size. |
| move $a0, rSELF # pass Thread::current |
| END art_quick_deoptimize |
| |
| /* |
| * 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: |
| * $a0: low word |
| * $a1: high word |
| * $a2: shift count |
| */ |
| ENTRY_NO_GP art_quick_shl_long |
| /* shl-long vAA, vBB, vCC */ |
| sll $v0, $a0, $a2 # rlo<- alo << (shift&31) |
| not $v1, $a2 # rhi<- 31-shift (shift is 5b) |
| srl $a0, 1 |
| srl $a0, $v1 # alo<- alo >> (32-(shift&31)) |
| sll $v1, $a1, $a2 # rhi<- ahi << (shift&31) |
| andi $a2, 0x20 # shift< shift & 0x20 |
| beqz $a2, 1f |
| or $v1, $a0 # rhi<- rhi | alo |
| |
| move $v1, $v0 # rhi<- rlo (if shift&0x20) |
| move $v0, $zero # rlo<- 0 (if shift&0x20) |
| |
| 1: jalr $zero, $ra |
| nop |
| END art_quick_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: |
| * $a0: low word |
| * $a1: high word |
| * $a2: shift count |
| */ |
| ENTRY_NO_GP art_quick_shr_long |
| sra $v1, $a1, $a2 # rhi<- ahi >> (shift&31) |
| srl $v0, $a0, $a2 # rlo<- alo >> (shift&31) |
| sra $a3, $a1, 31 # $a3<- sign(ah) |
| not $a0, $a2 # alo<- 31-shift (shift is 5b) |
| sll $a1, 1 |
| sll $a1, $a0 # ahi<- ahi << (32-(shift&31)) |
| andi $a2, 0x20 # shift & 0x20 |
| beqz $a2, 1f |
| or $v0, $a1 # rlo<- rlo | ahi |
| |
| move $v0, $v1 # rlo<- rhi (if shift&0x20) |
| move $v1, $a3 # rhi<- sign(ahi) (if shift&0x20) |
| |
| 1: jalr $zero, $ra |
| nop |
| END art_quick_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 |
| */ |
| /* ushr-long vAA, vBB, vCC */ |
| ENTRY_NO_GP art_quick_ushr_long |
| srl $v1, $a1, $a2 # rhi<- ahi >> (shift&31) |
| srl $v0, $a0, $a2 # rlo<- alo >> (shift&31) |
| not $a0, $a2 # alo<- 31-shift (shift is 5b) |
| sll $a1, 1 |
| sll $a1, $a0 # ahi<- ahi << (32-(shift&31)) |
| andi $a2, 0x20 # shift & 0x20 |
| beqz $a2, 1f |
| or $v0, $a1 # rlo<- rlo | ahi |
| |
| move $v0, $v1 # rlo<- rhi (if shift&0x20) |
| move $v1, $zero # rhi<- 0 (if shift&0x20) |
| |
| 1: jalr $zero, $ra |
| nop |
| END art_quick_ushr_long |
| |
| UNIMPLEMENTED art_quick_indexof |
| UNIMPLEMENTED art_quick_string_compareto |
