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 #pragma once 30 31 /* https://github.com/android/ndk/issues/1422 */ 32 #include <features.h> 33 34 #include <asm/unistd.h> /* For system call numbers. */ 35 #define MAX_ERRNO 4095 /* For recognizing system call error returns. */ 36 37 #define __bionic_asm_custom_entry(f) 38 #define __bionic_asm_custom_end(f) 39 #define __bionic_asm_function_type @function 40 #define __bionic_asm_custom_note_gnu_section() 41 42 #if defined(__aarch64__) 43 #include <private/bionic_asm_arm64.h> 44 #elif defined(__arm__) 45 #include <private/bionic_asm_arm.h> 46 #elif defined(__i386__) 47 #include <private/bionic_asm_x86.h> 48 #elif defined(__riscv) 49 #include <private/bionic_asm_riscv64.h> 50 #elif defined(__x86_64__) 51 #include <private/bionic_asm_x86_64.h> 52 #endif 53 54 #define ENTRY_NO_DWARF(f) \ 55 .text; \ 56 .globl f; \ 57 .balign __bionic_asm_align; \ 58 .type f, __bionic_asm_function_type; \ 59 f: \ 60 __bionic_asm_custom_entry(f); \ 61 62 #define ENTRY(f) \ 63 ENTRY_NO_DWARF(f) \ 64 .cfi_startproc \ 65 66 #define END_NO_DWARF(f) \ 67 .size f, .-f; \ 68 __bionic_asm_custom_end(f) \ 69 70 #define END(f) \ 71 .cfi_endproc; \ 72 END_NO_DWARF(f) \ 73 74 /* Like ENTRY, but with hidden visibility. */ 75 #define ENTRY_PRIVATE(f) \ 76 ENTRY(f); \ 77 .hidden f \ 78 79 /* Like ENTRY_NO_DWARF, but with hidden visibility. */ 80 #define ENTRY_PRIVATE_NO_DWARF(f) \ 81 ENTRY_NO_DWARF(f); \ 82 .hidden f \ 83 84 #define __BIONIC_WEAK_ASM_FOR_NATIVE_BRIDGE(f) \ 85 .weak f; \ 86 87 #define ALIAS_SYMBOL(alias, original) \ 88 .globl alias; \ 89 .equ alias, original 90 91 #define NOTE_GNU_PROPERTY() \ 92 __bionic_asm_custom_note_gnu_section() 93