asm_support_arm.S revision 6f3dbbadf4ce66982eb3d400e0a74cb73eb034f3
1/* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#ifndef ART_RUNTIME_ARCH_ARM_ASM_SUPPORT_ARM_S_ 18#define ART_RUNTIME_ARCH_ARM_ASM_SUPPORT_ARM_S_ 19 20#include "asm_support_arm.h" 21 22// Define special registers. 23 24// Register holding suspend check count down. 25#define rSUSPEND r4 26// Register holding Thread::Current(). 27#define rSELF r9 28 29.syntax unified 30.arch armv7-a 31.thumb 32 33.macro ENTRY name 34 .thumb_func 35 .type \name, #function 36 .hidden \name // Hide this as a global symbol, so we do not incur plt calls. 37 .global \name 38 /* Cache alignment for function entry */ 39 .balign 16 40\name: 41 .cfi_startproc 42 .fnstart 43.endm 44 45.macro ARM_ENTRY name 46 .arm 47 .type \name, #function 48 .hidden \name // Hide this as a global symbol, so we do not incur plt calls. 49 .global \name 50 /* Cache alignment for function entry */ 51 .balign 16 52\name: 53 .cfi_startproc 54 /* Ensure we get a sane starting CFA. */ 55 .cfi_def_cfa sp,0 56 .fnstart 57.endm 58 59.macro END name 60 .fnend 61 .cfi_endproc 62 .size \name, .-\name 63.endm 64 65.macro UNIMPLEMENTED name 66 ENTRY \name 67 bkpt 68 bkpt 69 END \name 70.endm 71 72#endif // ART_RUNTIME_ARCH_X86_ASM_SUPPORT_X86_S_ 73