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(__x86_64__) 46 #include <private/bionic_asm_x86_64.h> 47 #endif 48 49 #define ENTRY_NO_DWARF(f) \ 50 .text; \ 51 .globl f; \ 52 .balign __bionic_asm_align; \ 53 .type f, __bionic_asm_function_type; \ 54 f: \ 55 __bionic_asm_custom_entry(f); \ 56 57 #define ENTRY(f) \ 58 ENTRY_NO_DWARF(f) \ 59 .cfi_startproc \ 60 61 #define END_NO_DWARF(f) \ 62 .size f, .-f; \ 63 __bionic_asm_custom_end(f) \ 64 65 #define END(f) \ 66 .cfi_endproc; \ 67 END_NO_DWARF(f) \ 68 69 /* Like ENTRY, but with hidden visibility. */ 70 #define ENTRY_PRIVATE(f) \ 71 ENTRY(f); \ 72 .hidden f \ 73 74 /* Like ENTRY_NO_DWARF, but with hidden visibility. */ 75 #define ENTRY_PRIVATE_NO_DWARF(f) \ 76 ENTRY_NO_DWARF(f); \ 77 .hidden f \ 78 79 #define __BIONIC_WEAK_ASM_FOR_NATIVE_BRIDGE(f) \ 80 .weak f; \ 81 82 #define ALIAS_SYMBOL(alias, original) \ 83 .globl alias; \ 84 .equ alias, original 85 86 #endif 87