defaults.py revision 669c823f05880e4193286e3786a18658de0156a5
1# this module contains all the defaults used by the generation of cleaned-up headers 2# for the Bionic C library 3# 4 5import time, os, sys 6from utils import * 7 8# the list of supported architectures 9# 10kernel_archs = [ 'arm', 'x86', 'sh' ] 11 12# the list of include directories that belong to the kernel 13# tree. used when looking for sources... 14# 15kernel_dirs = [ "linux", "asm", "asm-generic", "mtd" ] 16 17# path to the directory containing the original kernel headers 18# 19kernel_original_path = os.path.normpath( find_program_dir() + '/../original' ) 20 21# a special value that is used to indicate that a given macro is known to be 22# undefined during optimization 23kCppUndefinedMacro = "<<<undefined>>>" 24 25# this is the set of known macros we want to totally optimize out from the 26# final headers 27kernel_known_macros = { 28 "__KERNEL__": kCppUndefinedMacro, 29 "__KERNEL_STRICT_NAMES":"1", 30 "__CHECKER__": kCppUndefinedMacro, 31 "__CHECK_ENDIAN__": kCppUndefinedMacro, 32 } 33 34# define to true if you want to remove all defined(CONFIG_FOO) tests 35# from the clean headers. testing shows that this is not strictly necessary 36# but just generates cleaner results 37kernel_remove_config_macros = True 38 39# maps an architecture to a set of default macros that would be provided by 40# toolchain preprocessor 41kernel_default_arch_macros = { 42 "arm": {}, 43 "x86": {"__i386__": "1"}, 44 } 45 46# Replace tokens in the output according to this mapping 47kernel_token_replacements = { 48 "asm": "__asm__", 49 } 50 51# this is the set of known static inline functions that we want to keep 52# in the final ARM headers. this is only used to keep optimized byteswapping 53# static functions and stuff like that. 54kernel_known_arm_statics = set( 55 [ "___arch__swab32", # asm-arm/byteorder.h 56 ] 57 ) 58 59kernel_known_x86_statics = set( 60 [ "___arch__swab32", # asm-x86/byteorder.h 61 "___arch__swab64", # asm-x86/byteorder.h 62 ] 63 ) 64 65kernel_known_sh_statics = set( 66 [ "___arch__swab16", # asm-sh/byteorder.h 67 "___arch__swab32", # asm-sh/byteorder.h 68 "___arch__swab64", # asm-sh/byteorder.h 69 "__FD_ZERO", # asm-sh/posix_types_32/64.h 70 "__FD_SET", # asm-sh/posix_types_32/64.h 71 ] 72 ) 73 74kernel_known_generic_statics = set( 75 [ "__invalid_size_argument_for_IOC", # asm-generic/ioctl.h 76 "__cmsg_nxthdr", # linux/socket.h 77 "cmsg_nxthdr", # linux/socket.h 78 "ipt_get_target", 79 "ip6t_get_target", 80 ] 81 ) 82 83# this maps an architecture to the set of static inline functions that 84# we want to keep in the final headers 85# 86kernel_known_statics = { 87 "arm" : kernel_known_arm_statics, 88 "x86" : kernel_known_x86_statics, 89 "sh" : kernel_known_sh_statics 90 } 91 92# this is a list of macros which we want to specifically exclude from 93# the generated files. 94# 95kernel_ignored_macros = set( 96 [ "MAXHOSTNAMELEN", # for some reason, Linux defines it to 64 97 # while most of the BSD code expects this to be 256 98 # so ignore the kernel-provided definition and 99 # define it in the Bionic headers instead 100 ] 101 ) 102 103# this is the standard disclaimer 104# 105kernel_disclaimer = """\ 106/**************************************************************************** 107 **************************************************************************** 108 *** 109 *** This header was automatically generated from a Linux kernel header 110 *** of the same name, to make information necessary for userspace to 111 *** call into the kernel available to libc. It contains only constants, 112 *** structures, and macros generated from the original header, and thus, 113 *** contains no copyrightable information. 114 *** 115 **************************************************************************** 116 ****************************************************************************/ 117""" 118