# All the defaults used to generate the cleaned-up uapi headers for bionic.
# the list of include directories that belong to the kernel # tree. used when looking for sources...
kernel_dirs = [ "linux", "asm", "asm-generic", "mtd" ]
# a special value that is used to indicate that a given macro is known to be # undefined during optimization
kCppUndefinedMacro = "<<<undefined>>>"
# this is the set of known macros we want to totally optimize out from the # final headers
kernel_known_macros = { "__KERNEL__": kCppUndefinedMacro, "__KERNEL_STRICT_NAMES":"1", "__CHECKER__": kCppUndefinedMacro, "__CHECK_ENDIAN__": kCppUndefinedMacro, "CONFIG_64BIT": "__LP64__", "CONFIG_X86_32": "__i386__", "__EXPORTED_HEADERS__": "1", "__HAVE_BUILTIN_BSWAP16__": "1", "__HAVE_BUILTIN_BSWAP32__": "1", "__HAVE_BUILTIN_BSWAP64__": "1", # Use this to remove the struct __kernel_old_timeval definition. # Otherwise, there will be two struct timeval definitions when # __kernel_old_timeval is renamed to timeval. "__kernel_old_timeval": "1", # Drop the custom byte swap functions and just use the clang builtins. # https://github.com/android/ndk/issues/2107 "__arch_swab16": kCppUndefinedMacro, "__arch_swab16p": kCppUndefinedMacro, "__arch_swab16s": kCppUndefinedMacro, "__arch_swab32": kCppUndefinedMacro, "__arch_swab32p": kCppUndefinedMacro, "__arch_swab32s": kCppUndefinedMacro, "__arch_swab64": kCppUndefinedMacro, "__arch_swab64p": kCppUndefinedMacro, "__arch_swab64s": kCppUndefinedMacro, "__arch_swahb32": kCppUndefinedMacro, "__arch_swahb32p": kCppUndefinedMacro, "__arch_swahb32s": kCppUndefinedMacro, "__arch_swahw32": kCppUndefinedMacro, "__arch_swahw32p": kCppUndefinedMacro, "__arch_swahw32s": kCppUndefinedMacro,
}
# This is the set of known kernel data structures we want to remove from # the final headers. If the map value is non-empty, that means that in # addition to removing the structure, add a #include to the file.
kernel_structs_to_remove = { # Remove these structures since they are still the same as # timeval, itimerval. Also, add an include of linux/time.h # since __kernel_old_timeval is being changed to timeval, and # is only present in linux/time.h. "__kernel_old_timeval": "linux/time.h", "__kernel_old_itimerval": None, # Replace all of the below structures with #include <bits/STRUCT.h> "__kernel_sockaddr_storage": "bits/sockaddr_storage.h", "epoll_event": "bits/epoll_event.h", "flock": "bits/flock.h", "flock64": "bits/flock64.h", "in_addr": "bits/in_addr.h", "ip_mreq_source": "bits/ip_mreq_source.h", "ip_msfilter": "bits/ip_msfilter.h", "tcphdr": "bits/tcphdr.h", "timespec": "bits/timespec.h",
}
# define to true if you want to remove all defined(CONFIG_FOO) tests # from the clean headers. testing shows that this is not strictly necessary # but just generates cleaner results
kernel_remove_config_macros = True
# Maps an architecture to a set of default macros that would be provided by # the toolchain's preprocessor. Currently only used to remove confusing # big-endian junk from the 32-bit arm headers.
kernel_default_arch_macros = { "arm": {"__ARMEB__": kCppUndefinedMacro, "__ARM_EABI__": "1"},
}
# Replace tokens in the output according to this mapping.
kernel_token_replacements = { # The kernel usage of __unused for unused struct fields conflicts with the macro defined in <sys/cdefs.h>. "__unused": "__linux_unused", # The kernel usage of C++ keywords causes problems for C++ code so rename. "class": "__linux_class", "private": "__linux_private", "virtual": "__linux_virtual", # The non-64 stuff is legacy; msqid64_ds/ipc64_perm is what userspace wants. "msqid_ds": "__kernel_legacy_msqid_ds", "semid_ds": "__kernel_legacy_semid_ds", "shmid_ds": "__kernel_legacy_shmid_ds", "ipc_perm": "__kernel_legacy_ipc_perm", # The kernel semun isn't usable (https://github.com/android-ndk/ndk/issues/400). "semun": "__kernel_legacy_semun", # The kernel's _NSIG/NSIG are one less than the userspace value, so we need to move them aside. "_NSIG": "_KERNEL__NSIG", "NSIG": "_KERNEL_NSIG", # The kernel's SIGRTMIN/SIGRTMAX are absolute limits; userspace steals a few. "SIGRTMIN": "__SIGRTMIN", "SIGRTMAX": "__SIGRTMAX", # We want to support both BSD and Linux member names in struct udphdr. "udphdr": "__kernel_udphdr", # This causes problems when trying to export the headers for the ndk. "__attribute_const__": "__attribute__((__const__))", # The kernel started using struct __kernel_old_timeval in some places, # which is the exact same as struct timeval. Replace that name with # timeval so that kernel structures all use the same named structure. # If struct __kernel_old_timeval and struct timeval become different, # then a different solution needs to be implemented. "__kernel_old_timeval": "timeval", # Do the same for __kernel_old_itimerval as for timeval. "__kernel_old_itimerval": "itimerval", # Do the same for __kernel_sockaddr_storage. "__kernel_sockaddr_storage": "sockaddr_storage", # Replace __packed with __attribute__((__packed__)) to avoid depending # on sys/cdefs.h "__packed": "__attribute__((__packed__))", # Remove unused macros (http://b/262917450). "__force": "", "__user": "", # Rename the kernel's sigaction so we can expose our POSIX one publicly, # but translate to the kernel's one internally. "sigaction": "__kernel_sigaction",
}
# Static inline functions that we want to keep.
kernel_known_generic_statics = set(
[ "ipt_get_target", # uapi/linux/netfilter_ipv4/ip_tables.h "ip6t_get_target", # uapi/linux/netfilter_ipv6/ip6_tables.h # Byte swapping inlines from uapi/linux/swab.h # The below functions are the ones we are guaranting we export. "__swab16", "__swab32", "__swab64", "__swab16p", "__swab32p", "__swab64p", "__swab16s", "__swab32s", "__swab64s", "__swahw32", "__swahb32", "__swahw32p", "__swahb32p", "__swahw32s", "__swahb32s", # These are required to support the above functions. "__fswahw32", "__fswahb32", # This is used by various macros in <linux/ioprio.h>. "ioprio_value",
# Contact opensource-licensing@ before adding to this set.
]
)
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