1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _PRIVATE_BIONIC_ASM_H_ 30 #define _PRIVATE_BIONIC_ASM_H_ 31 32 #include <asm/unistd.h> /* For system call numbers. */ 33 #define MAX_ERRNO 4095 /* For recognizing system call error returns. */ 34 35 #define __bionic_asm_custom_entry(f) 36 #define __bionic_asm_custom_end(f) 37 #define __bionic_asm_function_type @function 38 39 #if defined(__aarch64__) 40 #include <private/bionic_asm_arm64.h> 41 #elif defined(__arm__) 42 #include <private/bionic_asm_arm.h> 43 #elif defined(__i386__) 44 #include <private/bionic_asm_x86.h> 45 #elif defined(__mips__) 46 #include <private/bionic_asm_mips.h> 47 #elif defined(__x86_64__) 48 #include <private/bionic_asm_x86_64.h> 49 #endif 50 51 #define ENTRY_NO_DWARF(f) \ 52 .text; \ 53 .globl f; \ 54 .balign __bionic_asm_align; \ 55 .type f, __bionic_asm_function_type; \ 56 f: \ 57 __bionic_asm_custom_entry(f); \ 58 59 #define ENTRY(f) \ 60 ENTRY_NO_DWARF(f) \ 61 .cfi_startproc \ 62 63 #define END_NO_DWARF(f) \ 64 .size f, .-f; \ 65 __bionic_asm_custom_end(f) \ 66 67 #define END(f) \ 68 .cfi_endproc; \ 69 END_NO_DWARF(f) \ 70 71 /* Like ENTRY, but with hidden visibility. */ 72 #define ENTRY_PRIVATE(f) \ 73 ENTRY(f); \ 74 .hidden f \ 75 76 /* Like ENTRY_NO_DWARF, but with hidden visibility. */ 77 #define ENTRY_PRIVATE_NO_DWARF(f) \ 78 ENTRY_NO_DWARF(f); \ 79 .hidden f \ 80 81 #define __BIONIC_WEAK_ASM_FOR_NATIVE_BRIDGE(f) \ 82 .weak f; \ 83 84 #define ALIAS_SYMBOL(alias, original) \ 85 .globl alias; \ 86 .equ alias, original 87 88 #endif 89
