/* Copyright (C) 2008 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.
*/
/*
* File: entry.S
*/
#define ASSIST_DEBUGGER 1
.text
.align 2
.global dvmMterpStdRun
.type dvmMterpStdRun, %function
/*
* Save registers, initialize sp and fp.
* On entry:
* bool MterpGlue(glue *)
*/
.macro MTERP_ENTRY
movl 4(%esp), %ecx # get first argument
movl %ebp, -4(%esp) # save caller base pointer
movl %ebx, -8(%esp) # save %ebx
movl %esi, -12(%esp) # save %esi
movl %edi, -16(%esp) # save %edi
lea -40(%esp), %ebp # set callee base pointer
lea -40(%esp), %esp # set callee stack pointer
.endm
/*
* Restore registers.
* This function returns a boolean "changeInterp" value.
* The return value is from dvmMterpStdBail().
*/
.macro MTERP_EXIT
#lea 40(%ebp), %esp # correct stack pointer
#movl 24(%ebp), %edi # restore %edi
#movl 28(%ebp), %esi # restore %esi
#movl 32(%ebp), %ebx # restore %ebx
#movl 36(%ebp), %ebp # restore caller base pointer
#ret # return
lea 40(%esp), %esp # correct stack pointer
movl -16(%esp), %edi # restore %edi
movl -12(%esp), %esi # restore %esi
movl -8(%esp), %ebx # restore %ebx
movl -4(%esp), %ebp # restore caller base pointer
ret # return
.endm
/*
* DvmMterpStdRun entry point: save stack pointer, setup memory locations, get
* entry point, start executing instructions.
*/
dvmMterpStdRun:
MTERP_ENTRY
movl %ecx, rGLUE # save value for pMterpGlue
movl offGlue_pc(%ecx), rPC # get program counter
cmp $$kInterpEntryInstr, offGlue_entryPoint(%ecx) # check instruction
movl offGlue_fp(%ecx), rFP # get frame pointer
movl %esp, offGlue_bailPtr(%ecx) # save SP for eventual return
FFETCH %edx # %edx<- opcode
jne .Lnot_instr # no, handle it
FGETOP_JMPa %edx # start executing the instruction at rPC
/*
* Not an instruction. Are we returning from a method?
*/
.Lnot_instr:
cmpl $$kInterpEntryReturn, offGlue_entryPoint(%ecx)
je common_returnFromMethod
/*
* No, are we throwing an exception?
*/
.Lnot_return:
cmpl $$kInterpEntryThrow, offGlue_entryPoint(%ecx)
je common_exceptionThrown
/*
* No, then we must abort.
*/
.Lbad_arg:
pushl offGlue_entryPoint(%ecx)
movl $$.LstrBadEntryPoint, -4(%esp)
lea -4(%esp), %esp
call printf
lea 8(%esp), %esp
call dvmAbort # call (void)
/*
* Restore the stack pointer and PC from the save point established on entry and
* return to whoever called dvmMterpStdRun.
*
* On entry:
* 4(%esp) MterpGlue* glue
* 8(%esp) bool changeInterp
*/
.global dvmMterpStdBail
.type dvmMterpStdBail, %function
dvmMterpStdBail:
movl 4(%esp), %ecx # get first argument
movl 8(%esp), %eax # get second argument
movl offGlue_bailPtr(%ecx), %esp # sp <- saved SP
MTERP_EXIT
/*
* String references.
*/
.LstrBadEntryPoint:
.asciz "Bad entry point %d\n"
dvmAsmInstructionJmpTable = .LdvmAsmInstructionJmpTable
.LdvmAsmInstructionJmpTable:
.long .L_OP_NOP
.long .L_OP_MOVE
.long .L_OP_MOVE_FROM16
.long .L_OP_MOVE_16
.long .L_OP_MOVE_WIDE
.long .L_OP_MOVE_WIDE_FROM16
.long .L_OP_MOVE_WIDE_16
.long .L_OP_MOVE_OBJECT
.long .L_OP_MOVE_OBJECT_FROM16
.long .L_OP_MOVE_OBJECT_16
.long .L_OP_MOVE_RESULT
.long .L_OP_MOVE_RESULT_WIDE
.long .L_OP_MOVE_RESULT_OBJECT
.long .L_OP_MOVE_EXCEPTION
.long .L_OP_RETURN_VOID
.long .L_OP_RETURN
.long .L_OP_RETURN_WIDE
.long .L_OP_RETURN_OBJECT
.long .L_OP_CONST_4
.long .L_OP_CONST_16
.long .L_OP_CONST
.long .L_OP_CONST_HIGH16
.long .L_OP_CONST_WIDE_16
.long .L_OP_CONST_WIDE_32
.long .L_OP_CONST_WIDE
.long .L_OP_CONST_WIDE_HIGH16
.long .L_OP_CONST_STRING
.long .L_OP_CONST_STRING_JUMBO
.long .L_OP_CONST_CLASS
.long .L_OP_MONITOR_ENTER
.long .L_OP_MONITOR_EXIT
.long .L_OP_CHECK_CAST
.long .L_OP_INSTANCE_OF
.long .L_OP_ARRAY_LENGTH
.long .L_OP_NEW_INSTANCE
.long .L_OP_NEW_ARRAY
.long .L_OP_FILLED_NEW_ARRAY
.long .L_OP_FILLED_NEW_ARRAY_RANGE
.long .L_OP_FILL_ARRAY_DATA
.long .L_OP_THROW
.long .L_OP_GOTO
.long .L_OP_GOTO_16
.long .L_OP_GOTO_32
.long .L_OP_PACKED_SWITCH
.long .L_OP_SPARSE_SWITCH
.long .L_OP_CMPL_FLOAT
.long .L_OP_CMPG_FLOAT
.long .L_OP_CMPL_DOUBLE
.long .L_OP_CMPG_DOUBLE
.long .L_OP_CMP_LONG
.long .L_OP_IF_EQ
.long .L_OP_IF_NE
.long .L_OP_IF_LT
.long .L_OP_IF_GE
.long .L_OP_IF_GT
.long .L_OP_IF_LE
.long .L_OP_IF_EQZ
.long .L_OP_IF_NEZ
.long .L_OP_IF_LTZ
.long .L_OP_IF_GEZ
.long .L_OP_IF_GTZ
.long .L_OP_IF_LEZ
.long .L_OP_UNUSED_3E
.long .L_OP_UNUSED_3F
.long .L_OP_UNUSED_40
.long .L_OP_UNUSED_41
.long .L_OP_UNUSED_42
.long .L_OP_UNUSED_43
.long .L_OP_AGET
.long .L_OP_AGET_WIDE
.long .L_OP_AGET_OBJECT
.long .L_OP_AGET_BOOLEAN
.long .L_OP_AGET_BYTE
.long .L_OP_AGET_CHAR
.long .L_OP_AGET_SHORT
.long .L_OP_APUT
.long .L_OP_APUT_WIDE
.long .L_OP_APUT_OBJECT
.long .L_OP_APUT_BOOLEAN
.long .L_OP_APUT_BYTE
.long .L_OP_APUT_CHAR
.long .L_OP_APUT_SHORT
.long .L_OP_IGET
.long .L_OP_IGET_WIDE
.long .L_OP_IGET_OBJECT
.long .L_OP_IGET_BOOLEAN
.long .L_OP_IGET_BYTE
.long .L_OP_IGET_CHAR
.long .L_OP_IGET_SHORT
.long .L_OP_IPUT
.long .L_OP_IPUT_WIDE
.long .L_OP_IPUT_OBJECT
.long .L_OP_IPUT_BOOLEAN
.long .L_OP_IPUT_BYTE
.long .L_OP_IPUT_CHAR
.long .L_OP_IPUT_SHORT
.long .L_OP_SGET
.long .L_OP_SGET_WIDE
.long .L_OP_SGET_OBJECT
.long .L_OP_SGET_BOOLEAN
.long .L_OP_SGET_BYTE
.long .L_OP_SGET_CHAR
.long .L_OP_SGET_SHORT
.long .L_OP_SPUT
.long .L_OP_SPUT_WIDE
.long .L_OP_SPUT_OBJECT
.long .L_OP_SPUT_BOOLEAN
.long .L_OP_SPUT_BYTE
.long .L_OP_SPUT_CHAR
.long .L_OP_SPUT_SHORT
.long .L_OP_INVOKE_VIRTUAL
.long .L_OP_INVOKE_SUPER
.long .L_OP_INVOKE_DIRECT
.long .L_OP_INVOKE_STATIC
.long .L_OP_INVOKE_INTERFACE
.long .L_OP_UNUSED_73
.long .L_OP_INVOKE_VIRTUAL_RANGE
.long .L_OP_INVOKE_SUPER_RANGE
.long .L_OP_INVOKE_DIRECT_RANGE
.long .L_OP_INVOKE_STATIC_RANGE
.long .L_OP_INVOKE_INTERFACE_RANGE
.long .L_OP_UNUSED_79
.long .L_OP_UNUSED_7A
.long .L_OP_NEG_INT
.long .L_OP_NOT_INT
.long .L_OP_NEG_LONG
.long .L_OP_NOT_LONG
.long .L_OP_NEG_FLOAT
.long .L_OP_NEG_DOUBLE
.long .L_OP_INT_TO_LONG
.long .L_OP_INT_TO_FLOAT
.long .L_OP_INT_TO_DOUBLE
.long .L_OP_LONG_TO_INT
.long .L_OP_LONG_TO_FLOAT
.long .L_OP_LONG_TO_DOUBLE
.long .L_OP_FLOAT_TO_INT
.long .L_OP_FLOAT_TO_LONG
.long .L_OP_FLOAT_TO_DOUBLE
.long .L_OP_DOUBLE_TO_INT
.long .L_OP_DOUBLE_TO_LONG
.long .L_OP_DOUBLE_TO_FLOAT
.long .L_OP_INT_TO_BYTE
.long .L_OP_INT_TO_CHAR
.long .L_OP_INT_TO_SHORT
.long .L_OP_ADD_INT
.long .L_OP_SUB_INT
.long .L_OP_MUL_INT
.long .L_OP_DIV_INT
.long .L_OP_REM_INT
.long .L_OP_AND_INT
.long .L_OP_OR_INT
.long .L_OP_XOR_INT
.long .L_OP_SHL_INT
.long .L_OP_SHR_INT
.long .L_OP_USHR_INT
.long .L_OP_ADD_LONG
.long .L_OP_SUB_LONG
.long .L_OP_MUL_LONG
.long .L_OP_DIV_LONG
.long .L_OP_REM_LONG
.long .L_OP_AND_LONG
.long .L_OP_OR_LONG
.long .L_OP_XOR_LONG
.long .L_OP_SHL_LONG
.long .L_OP_SHR_LONG
.long .L_OP_USHR_LONG
.long .L_OP_ADD_FLOAT
.long .L_OP_SUB_FLOAT
.long .L_OP_MUL_FLOAT
.long .L_OP_DIV_FLOAT
.long .L_OP_REM_FLOAT
.long .L_OP_ADD_DOUBLE
.long .L_OP_SUB_DOUBLE
.long .L_OP_MUL_DOUBLE
.long .L_OP_DIV_DOUBLE
.long .L_OP_REM_DOUBLE
.long .L_OP_ADD_INT_2ADDR
.long .L_OP_SUB_INT_2ADDR
.long .L_OP_MUL_INT_2ADDR
.long .L_OP_DIV_INT_2ADDR
.long .L_OP_REM_INT_2ADDR
.long .L_OP_AND_INT_2ADDR
.long .L_OP_OR_INT_2ADDR
.long .L_OP_XOR_INT_2ADDR
.long .L_OP_SHL_INT_2ADDR
.long .L_OP_SHR_INT_2ADDR
.long .L_OP_USHR_INT_2ADDR
.long .L_OP_ADD_LONG_2ADDR
.long .L_OP_SUB_LONG_2ADDR
.long .L_OP_MUL_LONG_2ADDR
.long .L_OP_DIV_LONG_2ADDR
.long .L_OP_REM_LONG_2ADDR
.long .L_OP_AND_LONG_2ADDR
.long .L_OP_OR_LONG_2ADDR
.long .L_OP_XOR_LONG_2ADDR
.long .L_OP_SHL_LONG_2ADDR
.long .L_OP_SHR_LONG_2ADDR
.long .L_OP_USHR_LONG_2ADDR
.long .L_OP_ADD_FLOAT_2ADDR
.long .L_OP_SUB_FLOAT_2ADDR
.long .L_OP_MUL_FLOAT_2ADDR
.long .L_OP_DIV_FLOAT_2ADDR
.long .L_OP_REM_FLOAT_2ADDR
.long .L_OP_ADD_DOUBLE_2ADDR
.long .L_OP_SUB_DOUBLE_2ADDR
.long .L_OP_MUL_DOUBLE_2ADDR
.long .L_OP_DIV_DOUBLE_2ADDR
.long .L_OP_REM_DOUBLE_2ADDR
.long .L_OP_ADD_INT_LIT16
.long .L_OP_RSUB_INT
.long .L_OP_MUL_INT_LIT16
.long .L_OP_DIV_INT_LIT16
.long .L_OP_REM_INT_LIT16
.long .L_OP_AND_INT_LIT16
.long .L_OP_OR_INT_LIT16
.long .L_OP_XOR_INT_LIT16
.long .L_OP_ADD_INT_LIT8
.long .L_OP_RSUB_INT_LIT8
.long .L_OP_MUL_INT_LIT8
.long .L_OP_DIV_INT_LIT8
.long .L_OP_REM_INT_LIT8
.long .L_OP_AND_INT_LIT8
.long .L_OP_OR_INT_LIT8
.long .L_OP_XOR_INT_LIT8
.long .L_OP_SHL_INT_LIT8
.long .L_OP_SHR_INT_LIT8
.long .L_OP_USHR_INT_LIT8
.long .L_OP_UNUSED_E3
.long .L_OP_UNUSED_E4
.long .L_OP_UNUSED_E5
.long .L_OP_UNUSED_E6
.long .L_OP_UNUSED_E7
.long .L_OP_IGET_WIDE_VOLATILE
.long .L_OP_IPUT_WIDE_VOLATILE
.long .L_OP_SGET_WIDE_VOLATILE
.long .L_OP_SPUT_WIDE_VOLATILE
.long .L_OP_BREAKPOINT
.long .L_OP_THROW_VERIFICATION_ERROR
.long .L_OP_EXECUTE_INLINE
.long .L_OP_EXECUTE_INLINE_RANGE
.long .L_OP_INVOKE_DIRECT_EMPTY
.long .L_OP_UNUSED_F1
.long .L_OP_IGET_QUICK
.long .L_OP_IGET_WIDE_QUICK
.long .L_OP_IGET_OBJECT_QUICK
.long .L_OP_IPUT_QUICK
.long .L_OP_IPUT_WIDE_QUICK
.long .L_OP_IPUT_OBJECT_QUICK
.long .L_OP_INVOKE_VIRTUAL_QUICK
.long .L_OP_INVOKE_VIRTUAL_QUICK_RANGE
.long .L_OP_INVOKE_SUPER_QUICK
.long .L_OP_INVOKE_SUPER_QUICK_RANGE
.long .L_OP_UNUSED_FC
.long .L_OP_UNUSED_FD
.long .L_OP_UNUSED_FE
.long .L_OP_UNUSED_FF