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 ENTRY_NO_HIDE name 46 .thumb_func 47 .type \name, #function 48 .global \name 49 /* Cache alignment for function entry */ 50 .balign 16 51 \name: 52 .cfi_startproc 53 .fnstart 54 .endm 55 56 57 .macro ARM_ENTRY name 58 .arm 59 .type \name, #function 60 .hidden \name // Hide this as a global symbol, so we do not incur plt calls. 61 .global \name 62 /* Cache alignment for function entry */ 63 .balign 16 64 \name: 65 .cfi_startproc 66 /* Ensure we get a sane starting CFA. */ 67 .cfi_def_cfa sp,0 68 .fnstart 69 .endm 70 71 .macro ARM_ENTRY_NO_HIDE name 72 .arm 73 .type \name, #function 74 .global \name 75 /* Cache alignment for function entry */ 76 .balign 16 77 \name: 78 .cfi_startproc 79 /* Ensure we get a sane starting CFA. */ 80 .cfi_def_cfa sp,0 81 .fnstart 82 .endm 83 84 .macro END name 85 .fnend 86 .cfi_endproc 87 .size \name, .-\name 88 .endm 89 90 .macro UNIMPLEMENTED name 91 ENTRY \name 92 bkpt 93 bkpt 94 END \name 95 .endm 96 97 #endif // ART_RUNTIME_ARCH_X86_ASM_SUPPORT_X86_S_ 98