libc/Android.bp

package {
    default_applicable_licenses: ["bionic_libc_license"],
}

license {
    name: "bionic_libc_license",
    visibility: [":__subpackages__"],
    license_kinds: [
        "SPDX-license-identifier-Apache-2.0",
        "SPDX-license-identifier-BSD",
        "SPDX-license-identifier-ISC",
        "SPDX-license-identifier-MIT",
        "legacy_notice",
        "legacy_unencumbered",
    ],
    license_text: [
        "NOTICE",
    ],
}

libc_common_flags = [
    "-D_LIBC=1",
    "-D__BIONIC_LP32_USE_STAT64",
    "-Wall",
    "-Wextra",
    "-Wunused",
    "-Wno-char-subscripts",
    "-Wno-deprecated-declarations",
    "-Wno-gcc-compat",
    "-Wframe-larger-than=2048",
    "-Wno-reorder-init-list",

    // Try to catch typical 32-bit assumptions that break with 64-bit pointers.
    "-Werror=pointer-to-int-cast",
    "-Werror=int-to-pointer-cast",
    "-Werror=type-limits",
    "-Werror",

    // Clang's exit-time destructor registration hides __dso_handle, but
    // __dso_handle needs to have default visibility on ARM32. See b/73485611.
    "-Wexit-time-destructors",

    // We know clang does a lot of harm by rewriting what we've said, and sadly
    // never see any good it does, so let's just ask it to do what we say...
    // (The specific motivating example was clang turning a loop that would only
    // ever touch 0, 1, or 2 bytes into a call to memset, which was never going
    // to amortize.)
    "-fno-builtin",
]

// Define some common cflags
// ========================================================
cc_defaults {
    name: "libc_defaults",
    defaults: ["linux_bionic_supported"],
    cflags: libc_common_flags + [
        "-DUSE_SCUDO",
    ],
    asflags: libc_common_flags,
    conlyflags: ["-std=gnu99"],
    cppflags: [],
    include_dirs: [
        "bionic/libc/async_safe/include",
        "bionic/libc/platform",
        // For android_filesystem_config.h.
        "system/core/libcutils/include",
    ],

    header_libs: [
        "libc_headers",
        "liblog_headers", // needed by bionic/libc/async_safe/include
    ],
    export_header_lib_headers: [
        "libc_headers",
    ],

    stl: "none",
    system_shared_libs: [],
    sanitize: {
        address: false,
        integer_overflow: false,
        // TODO(b/132640749): Fix broken fuzzer support.
        fuzzer: false,
    },
    ramdisk_available: true,
    vendor_ramdisk_available: true,
    recovery_available: true,
    native_bridge_supported: true,

    product_variables: {
        malloc_zero_contents: {
            cflags: ["-DSCUDO_ZERO_CONTENTS"],
        },
        malloc_pattern_fill_contents: {
            cflags: ["-DSCUDO_PATTERN_FILL_CONTENTS"],
        },
        malloc_low_memory: {
            cflags: ["-UUSE_SCUDO"],
        },
    },

    lto: {
        never: true,
    },

    apex_available: ["com.android.runtime"],
}

// Workaround for b/24465209.
// We're unlikely to be able to remove this before we just
// remove ILP32 support completely.
// Note that we also still have `pack_relocations: false`
// for both libc and libm, even on LP64.
// ========================================================
cc_defaults {
    name: "bug_24465209_workaround",
    target: {
        android_arm: {
            pack_relocations: false,
            ldflags: ["-Wl,--hash-style=both"],
        },
        android_x86: {
            pack_relocations: false,
            ldflags: ["-Wl,--hash-style=both"],
        },
    },
}

// Leave the symbols in the shared library so that stack unwinders can produce
// meaningful name resolution. This is a bit more ugly than it sounds because
// arm32 is a bit broken.
// ========================================================
cc_defaults {
    name: "keep_symbols",
    arch: {
        arm: {
            // arm32 does not produce complete exidx unwind information,
            // so keep the .debug_frame which is relatively small and does
            // include needed unwind information.
            // See b/132992102 for details.
            strip: {
                keep_symbols_and_debug_frame: true,
            },
        },
        arm64: {
            strip: {
                keep_symbols: true,
            },
        },
        riscv64: {
            strip: {
                keep_symbols: true,
            },
        },
        x86: {
            strip: {
                keep_symbols: true,
            },
        },
        x86_64: {
            strip: {
                keep_symbols: true,
            },
        },
    },
}

// Defaults for native allocator libs/includes to make it
// easier to change.
// ========================================================
cc_defaults {
    name: "libc_native_allocator_defaults",

    whole_static_libs: [
        "libscudo",
    ],
    cflags: [
        "-DUSE_SCUDO",
    ],
    header_libs: ["gwp_asan_headers"],
    product_variables: {
        malloc_low_memory: {
            cflags: ["-UUSE_SCUDO"],
            whole_static_libs: [
                "libjemalloc5",
                "libc_jemalloc_wrapper",
            ],
            exclude_static_libs: [
                "libscudo",
            ],
        },
    },
}

// Functions not implemented by jemalloc directly, or that need to
// be modified for Android.
cc_library_static {
    name: "libc_jemalloc_wrapper",
    defaults: ["libc_defaults"],
    srcs: ["bionic/jemalloc_wrapper.cpp"],
    cflags: ["-fvisibility=hidden"],

    // Used to pull in the jemalloc include directory so that if the
    // library is removed, the include directory is also removed.
    static_libs: ["libjemalloc5"],
}

// ========================================================
// libc_bootstrap.a - -fno-stack-protector and -ffreestanding
// ========================================================
//
// Code that implements the stack protector (or that runs before TLS has been set up) needs to be
// compiled with -fno-stack-protector, since it accesses the stack canary TLS slot. In the linker,
// some of this code runs before ifunc resolvers have made string.h functions work, so compile with
// -ffreestanding.

cc_library_static {

    srcs: [
        "bionic/__libc_init_main_thread.cpp",
        "bionic/__stack_chk_fail.cpp",
        "bionic/bionic_call_ifunc_resolver.cpp",
        "bionic/getauxval.cpp",
    ],
    arch: {
        arm64: {
            srcs: ["arch-arm64/bionic/__set_tls.c"],
        },
        riscv64: {
            srcs: ["arch-riscv64/bionic/__set_tls.c"],
        },
        x86: {
            srcs: [
                "arch-x86/bionic/__libc_init_sysinfo.cpp",
                "arch-x86/bionic/__libc_int0x80.S",
                "arch-x86/bionic/__set_tls.cpp",
            ],
        },
        x86_64: {
            srcs: ["arch-x86_64/bionic/__set_tls.c"],
        },
    },

    defaults: ["libc_defaults"],
    cflags: [
        "-fno-stack-protector",
        "-ffreestanding",
    ],
    name: "libc_bootstrap",
}

filegroup {
    name: "elf_note_sources",
    srcs: ["bionic/elf_note.cpp"],
}

// libc_init_static.cpp and libc_init_dynamic.cpp need to be built without stack protector.
// libc_init_static.cpp sets up TLS for static executables, and libc_init_dynamic.cpp initializes
// the stack protector global variable.

cc_library_static {
    name: "libc_init_static",
    defaults: ["libc_defaults"],
    srcs: [
        "bionic/libc_init_mte.cpp",
        "bionic/libc_init_static.cpp",
        ":elf_note_sources",
    ],
    cflags: [
        "-fno-stack-protector",

        // Compile libc_init_static.cpp with -ffreestanding, because some of its code is called
        // from the linker before ifunc resolvers have made string.h functions available.
        "-ffreestanding",
    ],
}

cc_library_static {
    name: "libc_init_dynamic",
    defaults: ["libc_defaults"],
    srcs: ["bionic/libc_init_dynamic.cpp"],
    cflags: ["-fno-stack-protector"],
}

// ========================================================
// libc_tzcode.a - upstream 'tzcode' code
// ========================================================

cc_library_static {

    defaults: ["libc_defaults"],
    srcs: [
        "tzcode/**/*.c",
        "tzcode/bionic.cpp",
        // tzcode doesn't include strptime, so we use a fork of the
        // OpenBSD code which needs this global data.
        "upstream-openbsd/lib/libc/locale/_def_time.c",
        // tzcode doesn't include wcsftime, so we use the FreeBSD code.
        "upstream-freebsd/lib/libc/locale/wcsftime.c",
    ],

    cflags: [
        "-Wno-unused-parameter",
        // Don't use ridiculous amounts of stack.
        "-DALL_STATE",
        // Include tzsetwall, timelocal, timegm, time2posix, and posix2time.
        "-DSTD_INSPIRED",
        // Obviously, we want to be thread-safe.
        "-DTHREAD_SAFE=1",
        // The name of the tm_gmtoff field in our struct tm.
        "-DTM_GMTOFF=tm_gmtoff",
        // Android uses a system property instead of /etc/localtime, so make callers crash.
        "-DTZDEFAULT=NULL",
        // Where we store our tzdata.
        "-DTZDIR=\"/system/usr/share/zoneinfo\"",
        // Include `tzname`, `timezone`, and `daylight` globals.
        "-DHAVE_POSIX_DECLS=0",
        "-DUSG_COMPAT=2",
        "-DHAVE_TZNAME=2",
        // stdbool.h is available
        "-DHAVE_STDBOOL_H",
        // Use the empty string (instead of "   ") as the timezone abbreviation
        // fallback.
        "-DWILDABBR=\"\"",
        "-Dlint",
    ],

    local_include_dirs: [
        "tzcode/",
        "upstream-freebsd/android/include",
    ],
    name: "libc_tzcode",
}

// ========================================================
// libc_dns.a - modified NetBSD DNS code
// ========================================================

cc_library_static {

    defaults: ["libc_defaults"],
    srcs: [
        "dns/**/*.c*",

        "upstream-netbsd/lib/libc/isc/ev_streams.c",
        "upstream-netbsd/lib/libc/isc/ev_timers.c",
    ],

    cflags: [
        "-DANDROID_CHANGES",
        "-DINET6",
        "-Wno-unused-parameter",
        "-include netbsd-compat.h",
        "-Wframe-larger-than=66000",
    ],

    local_include_dirs: [
        "dns/include",
        "private",
        "upstream-netbsd/lib/libc/include",
        "upstream-netbsd/android/include",
    ],

    name: "libc_dns",
}

// ========================================================
// libc_freebsd.a - upstream FreeBSD C library code
// ========================================================
//
// These files are built with the freebsd-compat.h header file
// automatically included.

cc_library_static {
    name: "libc_freebsd_ldexp",
    defaults: ["libc_defaults"],
    cflags: ["-Dscalbn=ldexp"],
    srcs: [":libc_ldexp_srcs"],
}

cc_library_static {
    defaults: ["libc_defaults"],
    srcs: [
        "upstream-freebsd/lib/libc/stdlib/getopt_long.c",
        "upstream-freebsd/lib/libc/stdlib/hcreate.c",
        "upstream-freebsd/lib/libc/stdlib/hcreate_r.c",
        "upstream-freebsd/lib/libc/stdlib/hdestroy_r.c",
        "upstream-freebsd/lib/libc/stdlib/hsearch_r.c",
        "upstream-freebsd/lib/libc/stdlib/qsort.c",
        "upstream-freebsd/lib/libc/stdlib/qsort_r.c",
        "upstream-freebsd/lib/libc/stdlib/quick_exit.c",
        "upstream-freebsd/lib/libc/string/wcpcpy.c",
        "upstream-freebsd/lib/libc/string/wcpncpy.c",
        "upstream-freebsd/lib/libc/string/wcscasecmp.c",
        "upstream-freebsd/lib/libc/string/wcscat.c",
        "upstream-freebsd/lib/libc/string/wcschr.c",
        "upstream-freebsd/lib/libc/string/wcscmp.c",
        "upstream-freebsd/lib/libc/string/wcscpy.c",
        "upstream-freebsd/lib/libc/string/wcscspn.c",
        "upstream-freebsd/lib/libc/string/wcsdup.c",
        "upstream-freebsd/lib/libc/string/wcslcat.c",
        "upstream-freebsd/lib/libc/string/wcslen.c",
        "upstream-freebsd/lib/libc/string/wcsncasecmp.c",
        "upstream-freebsd/lib/libc/string/wcsncat.c",
        "upstream-freebsd/lib/libc/string/wcsncmp.c",
        "upstream-freebsd/lib/libc/string/wcsncpy.c",
        "upstream-freebsd/lib/libc/string/wcsnlen.c",
        "upstream-freebsd/lib/libc/string/wcspbrk.c",
        "upstream-freebsd/lib/libc/string/wcsrchr.c",
        "upstream-freebsd/lib/libc/string/wcsspn.c",
        "upstream-freebsd/lib/libc/string/wcsstr.c",
        "upstream-freebsd/lib/libc/string/wcstok.c",
        "upstream-freebsd/lib/libc/string/wmemchr.c",
        "upstream-freebsd/lib/libc/string/wmemcmp.c",
        "upstream-freebsd/lib/libc/string/wmemcpy.c",
        "upstream-freebsd/lib/libc/string/wmemmove.c",
        "upstream-freebsd/lib/libc/string/wmemset.c",
    ],

    cflags: [
        "-Wno-sign-compare",
        "-Wno-unused-parameter",
        "-include freebsd-compat.h",
    ],

    local_include_dirs: [
        "upstream-freebsd/android/include",
    ],

    name: "libc_freebsd",
}

cc_library_static {
    defaults: ["libc_defaults"],
    srcs: [
        "upstream-freebsd/lib/libc/gen/glob.c",
    ],

    cflags: [
        "-Wno-sign-compare",
        "-include freebsd-compat.h",
        "-Wframe-larger-than=66000",
    ],

    local_include_dirs: [
        "upstream-freebsd/android/include",
    ],

    name: "libc_freebsd_large_stack",
}

// ========================================================
// libc_netbsd.a - upstream NetBSD C library code
// ========================================================
//
// These files are built with the netbsd-compat.h header file
// automatically included.

cc_library_static {

    defaults: ["libc_defaults"],
    srcs: [
        "upstream-netbsd/common/lib/libc/stdlib/random.c",
        "upstream-netbsd/lib/libc/gen/nice.c",
        "upstream-netbsd/lib/libc/gen/psignal.c",
        "upstream-netbsd/lib/libc/gen/utime.c",
        "upstream-netbsd/lib/libc/inet/nsap_addr.c",
        "upstream-netbsd/lib/libc/regex/regcomp.c",
        "upstream-netbsd/lib/libc/regex/regerror.c",
        "upstream-netbsd/lib/libc/regex/regexec.c",
        "upstream-netbsd/lib/libc/regex/regfree.c",
        "upstream-netbsd/lib/libc/stdlib/drand48.c",
        "upstream-netbsd/lib/libc/stdlib/erand48.c",
        "upstream-netbsd/lib/libc/stdlib/jrand48.c",
        "upstream-netbsd/lib/libc/stdlib/lcong48.c",
        "upstream-netbsd/lib/libc/stdlib/lrand48.c",
        "upstream-netbsd/lib/libc/stdlib/mrand48.c",
        "upstream-netbsd/lib/libc/stdlib/nrand48.c",
        "upstream-netbsd/lib/libc/stdlib/_rand48.c",
        "upstream-netbsd/lib/libc/stdlib/rand_r.c",
        "upstream-netbsd/lib/libc/stdlib/seed48.c",
        "upstream-netbsd/lib/libc/stdlib/srand48.c",
    ],
    multilib: {
        lib32: {
            // LP32 cruft
            srcs: ["upstream-netbsd/common/lib/libc/hash/sha1/sha1.c"],
        },
    },
    cflags: [
        "-Wno-sign-compare",
        "-Wno-unused-parameter",
        "-DPOSIX_MISTAKE",
        "-include netbsd-compat.h",
    ],

    local_include_dirs: [
        "upstream-netbsd/android/include",
        "upstream-netbsd/lib/libc/include",
    ],

    name: "libc_netbsd",
}

// ========================================================
// libc_openbsd.a - upstream OpenBSD C library code
// ========================================================
//
// These files are built with the openbsd-compat.h header file
// automatically included.
cc_library_static {
    defaults: ["libc_defaults"],
    srcs: [
        "upstream-openbsd/lib/libc/crypt/arc4random.c",
        "upstream-openbsd/lib/libc/crypt/arc4random_uniform.c",
        "upstream-openbsd/lib/libc/gen/alarm.c",
        "upstream-openbsd/lib/libc/gen/ctype_.c",
        "upstream-openbsd/lib/libc/gen/daemon.c",
        "upstream-openbsd/lib/libc/gen/err.c",
        "upstream-openbsd/lib/libc/gen/errx.c",
        "upstream-openbsd/lib/libc/gen/fnmatch.c",
        "upstream-openbsd/lib/libc/gen/ftok.c",
        "upstream-openbsd/lib/libc/gen/getprogname.c",
        "upstream-openbsd/lib/libc/gen/setprogname.c",
        "upstream-openbsd/lib/libc/gen/verr.c",
        "upstream-openbsd/lib/libc/gen/verrx.c",
        "upstream-openbsd/lib/libc/gen/vwarn.c",
        "upstream-openbsd/lib/libc/gen/vwarnx.c",
        "upstream-openbsd/lib/libc/gen/warn.c",
        "upstream-openbsd/lib/libc/gen/warnx.c",
        "upstream-openbsd/lib/libc/locale/btowc.c",
        "upstream-openbsd/lib/libc/locale/mbrlen.c",
        "upstream-openbsd/lib/libc/locale/mbstowcs.c",
        "upstream-openbsd/lib/libc/locale/mbtowc.c",
        "upstream-openbsd/lib/libc/locale/wcscoll.c",
        "upstream-openbsd/lib/libc/locale/wcstombs.c",
        "upstream-openbsd/lib/libc/locale/wcsxfrm.c",
        "upstream-openbsd/lib/libc/locale/wctob.c",
        "upstream-openbsd/lib/libc/locale/wctomb.c",
        "upstream-openbsd/lib/libc/net/base64.c",
        "upstream-openbsd/lib/libc/net/htonl.c",
        "upstream-openbsd/lib/libc/net/htons.c",
        "upstream-openbsd/lib/libc/net/inet_lnaof.c",
        "upstream-openbsd/lib/libc/net/inet_makeaddr.c",
        "upstream-openbsd/lib/libc/net/inet_netof.c",
        "upstream-openbsd/lib/libc/net/inet_ntoa.c",
        "upstream-openbsd/lib/libc/net/inet_ntop.c",
        "upstream-openbsd/lib/libc/net/inet_pton.c",
        "upstream-openbsd/lib/libc/net/ntohl.c",
        "upstream-openbsd/lib/libc/net/ntohs.c",
        "upstream-openbsd/lib/libc/net/res_random.c",
        "upstream-openbsd/lib/libc/stdio/fgetln.c",
        "upstream-openbsd/lib/libc/stdio/fgetwc.c",
        "upstream-openbsd/lib/libc/stdio/fgetws.c",
        "upstream-openbsd/lib/libc/stdio/flags.c",
        "upstream-openbsd/lib/libc/stdio/fputwc.c",
        "upstream-openbsd/lib/libc/stdio/fputws.c",
        "upstream-openbsd/lib/libc/stdio/fvwrite.c",
        "upstream-openbsd/lib/libc/stdio/fwide.c",
        "upstream-openbsd/lib/libc/stdio/getdelim.c",
        "upstream-openbsd/lib/libc/stdio/gets.c",
        "upstream-openbsd/lib/libc/stdio/makebuf.c",
        "upstream-openbsd/lib/libc/stdio/mktemp.c",
        "upstream-openbsd/lib/libc/stdio/open_memstream.c",
        "upstream-openbsd/lib/libc/stdio/open_wmemstream.c",
        "upstream-openbsd/lib/libc/stdio/rget.c",
        "upstream-openbsd/lib/libc/stdio/setvbuf.c",
        "upstream-openbsd/lib/libc/stdio/ungetc.c",
        "upstream-openbsd/lib/libc/stdio/ungetwc.c",
        "upstream-openbsd/lib/libc/stdio/vasprintf.c",
        "upstream-openbsd/lib/libc/stdio/vdprintf.c",
        "upstream-openbsd/lib/libc/stdio/vsscanf.c",
        "upstream-openbsd/lib/libc/stdio/vswprintf.c",
        "upstream-openbsd/lib/libc/stdio/vswscanf.c",
        "upstream-openbsd/lib/libc/stdio/wbuf.c",
        "upstream-openbsd/lib/libc/stdio/wsetup.c",
        "upstream-openbsd/lib/libc/stdlib/abs.c",
        "upstream-openbsd/lib/libc/stdlib/div.c",
        "upstream-openbsd/lib/libc/stdlib/getenv.c",
        "upstream-openbsd/lib/libc/stdlib/getsubopt.c",
        "upstream-openbsd/lib/libc/stdlib/insque.c",
        "upstream-openbsd/lib/libc/stdlib/imaxabs.c",
        "upstream-openbsd/lib/libc/stdlib/imaxdiv.c",
        "upstream-openbsd/lib/libc/stdlib/labs.c",
        "upstream-openbsd/lib/libc/stdlib/ldiv.c",
        "upstream-openbsd/lib/libc/stdlib/llabs.c",
        "upstream-openbsd/lib/libc/stdlib/lldiv.c",
        "upstream-openbsd/lib/libc/stdlib/lsearch.c",
        "upstream-openbsd/lib/libc/stdlib/recallocarray.c",
        "upstream-openbsd/lib/libc/stdlib/remque.c",
        "upstream-openbsd/lib/libc/stdlib/setenv.c",
        "upstream-openbsd/lib/libc/stdlib/tfind.c",
        "upstream-openbsd/lib/libc/stdlib/tsearch.c",
        "upstream-openbsd/lib/libc/string/memccpy.c",
        "upstream-openbsd/lib/libc/string/strcasecmp.c",
        "upstream-openbsd/lib/libc/string/strcasestr.c",
        "upstream-openbsd/lib/libc/string/strcoll.c",
        "upstream-openbsd/lib/libc/string/strcspn.c",
        "upstream-openbsd/lib/libc/string/strdup.c",
        "upstream-openbsd/lib/libc/string/strndup.c",
        "upstream-openbsd/lib/libc/string/strpbrk.c",
        "upstream-openbsd/lib/libc/string/strsep.c",
        "upstream-openbsd/lib/libc/string/strspn.c",
        "upstream-openbsd/lib/libc/string/strtok.c",
        "upstream-openbsd/lib/libc/string/strxfrm.c",
        "upstream-openbsd/lib/libc/string/wcslcpy.c",
        "upstream-openbsd/lib/libc/string/wcswidth.c",

        // These files are originally from OpenBSD,
        // and benefit from being compiled with openbsd-compat.h.
        // TODO: clean them up instead.
        "bionic/fts.c",
        "stdio/vfprintf.cpp",
        "stdio/vfwprintf.cpp",
    ],

    // Each architecture has optimized versions of some routines,
    // and only includes the portable C versions of ones it's missing.
    arch: {
        arm: {
            srcs: [
                "upstream-openbsd/lib/libc/string/stpncpy.c",
                "upstream-openbsd/lib/libc/string/strncat.c",
                "upstream-openbsd/lib/libc/string/strncmp.c",
                "upstream-openbsd/lib/libc/string/strncpy.c",
            ],
        },
        arm64: {
            srcs: [
                "upstream-openbsd/lib/libc/string/strcat.c",
                "upstream-openbsd/lib/libc/string/stpncpy.c",
                "upstream-openbsd/lib/libc/string/strncat.c",
                "upstream-openbsd/lib/libc/string/strncpy.c",
            ],
        },
        riscv64: {
            srcs: [
                "upstream-openbsd/lib/libc/string/stpncpy.c",
            ],
        },
        x86: {
            srcs: [
                // x86 has custom implementations of all of these.
            ],
        },
        x86_64: {
            srcs: [
                // x86_64 has custom/llvm-libc implementations of all of these.
            ],
        },
    },

    cflags: [
        "-Wno-sign-compare",
        "-Wno-unused-parameter",
        "-include openbsd-compat.h",
    ],

    local_include_dirs: [
        "private",
        "stdio",
        "upstream-openbsd/android/include/",
        "upstream-openbsd/lib/libc/gdtoa/",
        "upstream-openbsd/lib/libc/include/",
        "upstream-openbsd/lib/libc/stdio/",
    ],

    name: "libc_openbsd",
}

cc_library_static {
    name: "libc_openbsd_large_stack",
    defaults: ["libc_defaults"],
    srcs: [
        "upstream-openbsd/lib/libc/string/memmem.c",
        "upstream-openbsd/lib/libc/string/strstr.c",
    ],
    cflags: [
        "-include openbsd-compat.h",
        "-Wno-sign-compare",
        "-Wframe-larger-than=5000",
    ],

    local_include_dirs: [
        "upstream-openbsd/android/include/",
    ],
}

// ========================================================
// libc_gdtoa.a - upstream OpenBSD C library gdtoa code
// ========================================================
//
// These files are built with the openbsd-compat.h header file
// automatically included.

cc_library_static {
    defaults: ["libc_defaults"],
    srcs: [
        "upstream-openbsd/android/gdtoa_support.cpp",
        "upstream-openbsd/lib/libc/gdtoa/dmisc.c",
        "upstream-openbsd/lib/libc/gdtoa/dtoa.c",
        "upstream-openbsd/lib/libc/gdtoa/gdtoa.c",
        "upstream-openbsd/lib/libc/gdtoa/gethex.c",
        "upstream-openbsd/lib/libc/gdtoa/gmisc.c",
        "upstream-openbsd/lib/libc/gdtoa/hd_init.c",
        "upstream-openbsd/lib/libc/gdtoa/hdtoa.c",
        "upstream-openbsd/lib/libc/gdtoa/hexnan.c",
        "upstream-openbsd/lib/libc/gdtoa/ldtoa.c",
        "upstream-openbsd/lib/libc/gdtoa/misc.c",
        "upstream-openbsd/lib/libc/gdtoa/smisc.c",
        "upstream-openbsd/lib/libc/gdtoa/strtod.c",
        "upstream-openbsd/lib/libc/gdtoa/strtodg.c",
        "upstream-openbsd/lib/libc/gdtoa/strtof.c",
        "upstream-openbsd/lib/libc/gdtoa/strtord.c",
        "upstream-openbsd/lib/libc/gdtoa/sum.c",
        "upstream-openbsd/lib/libc/gdtoa/ulp.c",
    ],
    multilib: {
        lib64: {
            srcs: ["upstream-openbsd/lib/libc/gdtoa/strtorQ.c"],
        },
    },

    cflags: [
        "-Wno-sign-compare",
        "-include openbsd-compat.h",
    ],

    local_include_dirs: [
        "private",
        "upstream-openbsd/android/include",
        "upstream-openbsd/lib/libc/include",
    ],

    name: "libc_gdtoa",
}

// ========================================================
// libc_fortify.a - container for our FORTIFY
// implementation details
// ========================================================
cc_library_static {
    defaults: ["libc_defaults"],
    srcs: ["bionic/fortify.cpp"],

    name: "libc_fortify",

    // Disable FORTIFY for the compilation of these, so we don't end up having
    // FORTIFY silently call itself.
    cflags: [
        "-U_FORTIFY_SOURCE",
        "-D__BIONIC_DECLARE_FORTIFY_HELPERS",
    ],

    arch: {
        arm: {
            cflags: [
                "-DRENAME___STRCAT_CHK",
                "-DRENAME___STRCPY_CHK",
            ],
            srcs: [
                "arch-arm/generic/bionic/__memcpy_chk.S",

                "arch-arm/cortex-a15/bionic/__strcat_chk.S",
                "arch-arm/cortex-a15/bionic/__strcpy_chk.S",

                "arch-arm/cortex-a7/bionic/__strcat_chk.S",
                "arch-arm/cortex-a7/bionic/__strcpy_chk.S",

                "arch-arm/cortex-a9/bionic/__strcat_chk.S",
                "arch-arm/cortex-a9/bionic/__strcpy_chk.S",

                "arch-arm/krait/bionic/__strcat_chk.S",
                "arch-arm/krait/bionic/__strcpy_chk.S",

                "arch-arm/cortex-a53/bionic/__strcat_chk.S",
                "arch-arm/cortex-a53/bionic/__strcpy_chk.S",

                "arch-arm/cortex-a55/bionic/__strcat_chk.S",
                "arch-arm/cortex-a55/bionic/__strcpy_chk.S",
            ],
        },
        arm64: {
            srcs: [
                "arch-arm64/string/__memcpy_chk.S",
                "arch-arm64/string/__memset_chk.S",
            ],
        },
    },
}

// ========================================================
// icu4x_bionic.a - Thin Rust wrapper around ICU4X
// ========================================================

rust_ffi_static {
    name: "libicu4x_bionic",
    crate_name: "icu4x_bionic",
    crate_root: "bionic/icu4x.rs",
    edition: "2021",
    features: [],
    rustlibs: [
        "//external/rust/android-crates-io/crates/icu_casemap:libicu_casemap",
        "//external/rust/android-crates-io/crates/icu_collections:libicu_collections",
        "//external/rust/android-crates-io/crates/icu_properties:libicu_properties",
    ],
    apex_available: [
        "//apex_available:platform",
        "//apex_available:anyapex",
    ],
    vendor_available: true,
    product_available: true,
    ramdisk_available: true,
    vendor_ramdisk_available: true,
    recovery_available: true,
    native_bridge_supported: true,
    sdk_version: "minimum",
    defaults: ["linux_bionic_supported"],
}

// current rust implementation detail; will be removed as part of a larger cleanup later
// go/android-mto-staticlibs-in-make
cc_rustlibs_for_make {
    name: "libstatic_rustlibs_for_make",
    whole_static_libs: ["libicu4x_bionic"],
    apex_available: [
        "//apex_available:platform",
        "//apex_available:anyapex",
    ],
    vendor_available: true,
    product_available: true,
    ramdisk_available: true,
    vendor_ramdisk_available: true,
    recovery_available: true,
    native_bridge_supported: true,
    defaults: ["linux_bionic_supported"],
}

// ========================================================
// libc_bionic.a - home-grown C library code
// ========================================================

cc_library_static {
    defaults: ["libc_defaults"],
    srcs: [
        "bionic/NetdClientDispatch.cpp",
        "bionic/__bionic_get_shell_path.cpp",
        "bionic/__cmsg_nxthdr.cpp",
        "bionic/__cxa_thread_atexit_impl.cpp",
        "bionic/__errno.cpp",
        "bionic/__gnu_basename.cpp",
        "bionic/__libc_current_sigrtmax.cpp",
        "bionic/__libc_current_sigrtmin.cpp",
        "bionic/abort.cpp",
        "bionic/accept.cpp",
        "bionic/access.cpp",
        "bionic/android_crash_detail.cpp",
        "bionic/android_set_abort_message.cpp",
        "bionic/android_unsafe_frame_pointer_chase.cpp",
        "bionic/arpa_inet.cpp",
        "bionic/assert.cpp",
        "bionic/atexit.cpp",
        "bionic/atof.cpp",
        "bionic/bionic_allocator.cpp",
        "bionic/bionic_arc4random.cpp",
        "bionic/bionic_elf_tls.cpp",
        "bionic/bionic_futex.cpp",
        "bionic/bionic_netlink.cpp",
        "bionic/bionic_systrace.cpp",
        "bionic/bionic_time_conversions.cpp",
        "bionic/brk.cpp",
        "bionic/c16rtomb.cpp",
        "bionic/c32rtomb.cpp",
        "bionic/chmod.cpp",
        "bionic/chown.cpp",
        "bionic/clearenv.cpp",
        "bionic/clock.cpp",
        "bionic/clock_getcpuclockid.cpp",
        "bionic/clock_nanosleep.cpp",
        "bionic/clone.cpp",
        "bionic/ctype.cpp",
        "bionic/dirent.cpp",
        "bionic/dup.cpp",
        "bionic/environ.cpp",
        "bionic/error.cpp",
        "bionic/eventfd.cpp",
        "bionic/exec.cpp",
        "bionic/execinfo.cpp",
        "bionic/exit.cpp",
        "bionic/faccessat.cpp",
        "bionic/fchmod.cpp",
        "bionic/fchmodat.cpp",
        "bionic/fcntl.cpp",
        "bionic/fdsan.cpp",
        "bionic/fdtrack.cpp",
        "bionic/ffs.cpp",
        "bionic/fgetxattr.cpp",
        "bionic/flistxattr.cpp",
        "bionic/fork.cpp",
        "bionic/fpclassify.cpp",
        "bionic/fsetxattr.cpp",
        "bionic/ftruncate.cpp",
        "bionic/ftw.cpp",
        "bionic/futimens.cpp",
        "bionic/getcwd.cpp",
        "bionic/getdomainname.cpp",
        "bionic/getentropy.cpp",
        "bionic/gethostname.cpp",
        "bionic/getloadavg.cpp",
        "bionic/getpagesize.cpp",
        "bionic/getpgrp.cpp",
        "bionic/getpid.cpp",
        "bionic/getpriority.cpp",
        "bionic/gettid.cpp",
        "bionic/get_device_api_level.cpp",
        "bionic/grp_pwd.cpp",
        "bionic/grp_pwd_file.cpp",
        "bionic/heap_zero_init.cpp",
        "bionic/iconv.cpp",
        "bionic/ifaddrs.cpp",
        "bionic/inotify_init.cpp",
        "bionic/ioctl.cpp",
        "bionic/isatty.cpp",
        "bionic/killpg.cpp",
        "bionic/langinfo.cpp",
        "bionic/lchmod.cpp",
        "bionic/lchown.cpp",
        "bionic/lfs64_support.cpp",
        "bionic/libc_init_common.cpp",
        "bionic/libgen.cpp",
        "bionic/link.cpp",
        "bionic/locale.cpp",
        "bionic/lockf.cpp",
        "bionic/lstat.cpp",
        "bionic/mblen.cpp",
        "bionic/mbrtoc16.cpp",
        "bionic/mbrtoc32.cpp",
        "bionic/mempcpy.cpp",
        "bionic/memset_explicit.cpp",
        "bionic/mkdir.cpp",
        "bionic/mkfifo.cpp",
        "bionic/mknod.cpp",
        "bionic/mntent.cpp",
        "bionic/netdb.cpp",
        "bionic/net_if.cpp",
        "bionic/netinet_ether.cpp",
        "bionic/netinet_in.cpp",
        "bionic/nl_types.cpp",
        "bionic/open.cpp",
        "bionic/pathconf.cpp",
        "bionic/pause.cpp",
        "bionic/pidfd.cpp",
        "bionic/pipe.cpp",
        "bionic/poll.cpp",
        "bionic/posix_fadvise.cpp",
        "bionic/posix_fallocate.cpp",
        "bionic/posix_madvise.cpp",
        "bionic/posix_timers.cpp",
        "bionic/preadv_pwritev.cpp",
        "bionic/pthread_atfork.cpp",
        "bionic/pthread_attr.cpp",
        "bionic/pthread_barrier.cpp",
        "bionic/pthread_cond.cpp",
        "bionic/pthread_create.cpp",
        "bionic/pthread_detach.cpp",
        "bionic/pthread_equal.cpp",
        "bionic/pthread_exit.cpp",
        "bionic/pthread_getaffinity.cpp",
        "bionic/pthread_getcpuclockid.cpp",
        "bionic/pthread_getschedparam.cpp",
        "bionic/pthread_gettid_np.cpp",
        "bionic/pthread_internal.cpp",
        "bionic/pthread_join.cpp",
        "bionic/pthread_key.cpp",
        "bionic/pthread_kill.cpp",
        "bionic/pthread_mutex.cpp",
        "bionic/pthread_once.cpp",
        "bionic/pthread_rwlock.cpp",
        "bionic/pthread_sigqueue.cpp",
        "bionic/pthread_self.cpp",
        "bionic/pthread_setname_np.cpp",
        "bionic/pthread_setaffinity.cpp",
        "bionic/pthread_setschedparam.cpp",
        "bionic/pthread_spinlock.cpp",
        "bionic/ptrace.cpp",
        "bionic/pty.cpp",
        "bionic/raise.cpp",
        "bionic/rand.cpp",
        "bionic/readlink.cpp",
        "bionic/realpath.cpp",
        "bionic/reboot.cpp",
        "bionic/recv.cpp",
        "bionic/recvmsg.cpp",
        "bionic/rename.cpp",
        "bionic/rmdir.cpp",
        "bionic/scandir.cpp",
        "bionic/sched_cpualloc.cpp",
        "bionic/sched_cpucount.cpp",
        "bionic/sched_getaffinity.cpp",
        "bionic/sched_getcpu.cpp",
        "bionic/semaphore.cpp",
        "bionic/send.cpp",
        "bionic/setegid.cpp",
        "bionic/seteuid.cpp",
        "bionic/setjmp_cookie.cpp",
        "bionic/setpgrp.cpp",
        "bionic/sigaction.cpp",
        "bionic/signal.cpp",
        "bionic/sigprocmask.cpp",
        "bionic/sleep.cpp",
        "bionic/socketpair.cpp",
        "bionic/spawn.cpp",
        "bionic/stat.cpp",
        "bionic/stdlib_l.cpp",
        "bionic/strerror.cpp",
        "bionic/string_l.cpp",
        "bionic/strings_l.cpp",
        "bionic/strsignal.cpp",
        "bionic/strtol.cpp",
        "bionic/strtold.cpp",
        "bionic/swab.cpp",
        "bionic/symlink.cpp",
        "bionic/sync_file_range.cpp",
        "bionic/sysconf.cpp",
        "bionic/sys_epoll.cpp",
        "bionic/sys_msg.cpp",
        "bionic/sys_sem.cpp",
        "bionic/sys_shm.cpp",
        "bionic/sys_signalfd.cpp",
        "bionic/sys_statfs.cpp",
        "bionic/sys_statvfs.cpp",
        "bionic/sys_thread_properties.cpp",
        "bionic/sys_time.cpp",
        "bionic/sysinfo.cpp",
        "bionic/syslog.cpp",
        "bionic/sysprop_helpers.cpp",
        "bionic/system.cpp",
        "bionic/system_property_api.cpp",
        "bionic/system_property_set.cpp",
        "bionic/tdestroy.cpp",
        "bionic/termios.cpp",
        "bionic/thread_private.cpp",
        "bionic/threads.cpp",
        "bionic/time.cpp",
        "bionic/tmpfile.cpp",
        "bionic/umount.cpp",
        "bionic/unlink.cpp",
        "bionic/usleep.cpp",
        "bionic/utmp.cpp",
        "bionic/vdso.cpp",
        "bionic/wait.cpp",
        "bionic/wchar.cpp",
        "bionic/wchar_l.cpp",
        "bionic/wcstod.cpp",
        "bionic/wctype.cpp",
        "bionic/wcwidth.cpp",
        "bionic/wmempcpy.cpp",

        // Forked but not yet cleaned up/rewritten stdio code.
        // TODO: finish cleanup.
        "stdio/fmemopen.cpp",
        "stdio/parsefloat.c",
        "stdio/refill.c",
        "stdio/stdio.cpp",
        "stdio/stdio_ext.cpp",
        "stdio/vfscanf.cpp",
        "stdio/vfwscanf.cpp",
    ],

    arch: {
        arm: {
            asflags: libc_common_flags + ["-mno-restrict-it"],
            srcs: [
                "arch-arm/bionic/__aeabi_read_tp.S",
                "arch-arm/bionic/__bionic_clone.S",
                "arch-arm/bionic/__restore.S",
                "arch-arm/bionic/_exit_with_stack_teardown.S",
                "arch-arm/bionic/atomics_arm.c",
                "arch-arm/bionic/bpabi.c",
                "arch-arm/bionic/libcrt_compat.c",
                "arch-arm/bionic/popcount_tab.c",
                "arch-arm/bionic/setjmp.S",
                "arch-arm/bionic/syscall.S",
                "arch-arm/bionic/vfork.S",

                "arch-arm/cortex-a7/bionic/memcpy.S",
                "arch-arm/cortex-a7/bionic/memset.S",

                "arch-arm/cortex-a9/bionic/memcpy.S",
                "arch-arm/cortex-a9/bionic/memset.S",
                "arch-arm/cortex-a9/bionic/stpcpy.S",
                "arch-arm/cortex-a9/bionic/strcat.S",
                "arch-arm/cortex-a9/bionic/strcpy.S",
                "arch-arm/cortex-a9/bionic/strlen.S",

                "arch-arm/cortex-a15/bionic/memcpy.S",
                "arch-arm/cortex-a15/bionic/memmove.S",
                "arch-arm/cortex-a15/bionic/memset.S",
                "arch-arm/cortex-a15/bionic/stpcpy.S",
                "arch-arm/cortex-a15/bionic/strcat.S",
                "arch-arm/cortex-a15/bionic/strcmp.S",
                "arch-arm/cortex-a15/bionic/strcpy.S",
                "arch-arm/cortex-a15/bionic/strlen.S",

                "arch-arm/cortex-a53/bionic/memcpy.S",

                "arch-arm/cortex-a55/bionic/memcpy.S",

                "arch-arm/generic/bionic/memcmp.S",
                "arch-arm/generic/bionic/memmove.S",
                "arch-arm/generic/bionic/memset.S",
                "arch-arm/generic/bionic/stpcpy.c",
                "arch-arm/generic/bionic/strcat.c",
                "arch-arm/generic/bionic/strcmp.S",
                "arch-arm/generic/bionic/strcpy.S",
                "arch-arm/generic/bionic/strlen.c",

                "arch-arm/krait/bionic/memcpy.S",
                "arch-arm/krait/bionic/memset.S",

                "arch-arm/kryo/bionic/memcpy.S",
            ],
        },
        arm64: {
            srcs: [
                "arch-arm64/bionic/__bionic_clone.S",
                "arch-arm64/bionic/_exit_with_stack_teardown.S",
                "arch-arm64/bionic/setjmp.S",
                "arch-arm64/bionic/syscall.S",
                "arch-arm64/bionic/vfork.S",
                "arch-arm64/oryon/memcpy-nt.S",
                "arch-arm64/oryon/memset-nt.S",
            ],
        },

        riscv64: {
            srcs: [
                "arch-riscv64/bionic/__bionic_clone.S",
                "arch-riscv64/bionic/_exit_with_stack_teardown.S",
                "arch-riscv64/bionic/setjmp.S",
                "arch-riscv64/bionic/syscall.S",
                "arch-riscv64/bionic/vfork.S",

                "arch-riscv64/string/memchr.S",
                "arch-riscv64/string/memcmp.S",
                "arch-riscv64/string/memcpy.S",
                "arch-riscv64/string/memmove.S",
                "arch-riscv64/string/memset.S",
                "arch-riscv64/string/stpcpy.S",
                "arch-riscv64/string/strcat.S",
                "arch-riscv64/string/strchr.S",
                "arch-riscv64/string/strcmp.S",
                "arch-riscv64/string/strcpy.S",
                "arch-riscv64/string/strlen.S",
                "arch-riscv64/string/strncat.S",
                "arch-riscv64/string/strncmp.S",
                "arch-riscv64/string/strncpy.S",
                "arch-riscv64/string/strnlen.S",
            ],
        },

        x86: {
            srcs: [
                "arch-x86/bionic/__bionic_clone.S",
                "arch-x86/bionic/_exit_with_stack_teardown.S",
                "arch-x86/bionic/libcrt_compat.c",
                "arch-x86/bionic/setjmp.S",
                "arch-x86/bionic/syscall.S",
                "arch-x86/bionic/vfork.S",
                "arch-x86/bionic/__x86.get_pc_thunk.S",

                "arch-x86/string/sse2-memmove-slm.S",
                "arch-x86/string/sse2-memset-slm.S",
                "arch-x86/string/sse2-stpcpy-slm.S",
                "arch-x86/string/sse2-stpncpy-slm.S",
                "arch-x86/string/sse2-strcpy-slm.S",
                "arch-x86/string/sse2-strlen-slm.S",
                "arch-x86/string/sse2-strncpy-slm.S",

                "arch-x86/string/ssse3-memcmp-atom.S",
                "arch-x86/string/ssse3-strcat-atom.S",
                "arch-x86/string/ssse3-strcmp-atom.S",
                "arch-x86/string/ssse3-strncat-atom.S",
                "arch-x86/string/ssse3-strncmp-atom.S",

                "arch-x86/string/sse4-memcmp-slm.S",
            ],
        },
        x86_64: {
            srcs: [
                "arch-x86_64/bionic/__bionic_clone.S",
                "arch-x86_64/bionic/_exit_with_stack_teardown.S",
                "arch-x86_64/bionic/__restore_rt.S",
                "arch-x86_64/bionic/setjmp.S",
                "arch-x86_64/bionic/syscall.S",
                "arch-x86_64/bionic/vfork.S",

                "arch-x86_64/string/avx2-memset-kbl.S",
                "arch-x86_64/string/sse2-memmove-slm.S",
                "arch-x86_64/string/sse2-memset-slm.S",
                "arch-x86_64/string/sse2-stpcpy-slm.S",
                "arch-x86_64/string/sse2-stpncpy-slm.S",
                "arch-x86_64/string/sse2-strcat-slm.S",
                "arch-x86_64/string/sse2-strcpy-slm.S",
                "arch-x86_64/string/sse2-strlen-slm.S",
                "arch-x86_64/string/sse2-strncat-slm.S",
                "arch-x86_64/string/sse2-strncpy-slm.S",
                "arch-x86_64/string/sse4-memcmp-slm.S",
                "arch-x86_64/string/ssse3-strcmp-slm.S",
                "arch-x86_64/string/ssse3-strncmp-slm.S",
            ],
        },
    },

    multilib: {
        lib32: {
            srcs: [
                // off64_t/time64_t support on LP32.
                "bionic/legacy_32_bit_support.cpp",
                "bionic/time64.c",
            ],
        },
    },

    local_include_dirs: ["stdio"],
    generated_headers: ["generated_android_ids"],

    whole_static_libs: [
        "//external/llvm-libc:llvmlibc",
        "libsystemproperties",
        "libicu4x_bionic",
    ],

    cppflags: ["-Wold-style-cast"],
    include_dirs: ["bionic/libstdc++/include"],
    name: "libc_bionic",
}

genrule {
    name: "generated_android_ids",
    out: ["generated_android_ids.h"],
    srcs: [":android_filesystem_config_header"],
    tools: ["fs_config_generator"],
    cmd: "$(location fs_config_generator) aidarray $(in) > $(out)",
}

// ========================================================
// libc_syscalls.a
// ========================================================

genrule {
    name: "syscalls-arm",
    out: ["syscalls-arm.S"],
    srcs: ["SYSCALLS.TXT"],
    tools: ["gensyscalls"],
    cmd: "$(location gensyscalls) arm $(in) > $(out)",
}

genrule {
    name: "syscalls-arm64",
    out: ["syscalls-arm64.S"],
    srcs: ["SYSCALLS.TXT"],
    tools: ["gensyscalls"],
    cmd: "$(location gensyscalls) arm64 $(in) > $(out)",
}

genrule {
    name: "syscalls-riscv64",
    out: ["syscalls-riscv64.S"],
    srcs: ["SYSCALLS.TXT"],
    tools: ["gensyscalls"],
    cmd: "$(location gensyscalls) riscv64 $(in) > $(out)",
}

genrule {
    name: "syscalls-x86",
    out: ["syscalls-x86.S"],
    srcs: ["SYSCALLS.TXT"],
    tools: ["gensyscalls"],
    cmd: "$(location gensyscalls) x86 $(in) > $(out)",
}

genrule {
    name: "syscalls-x86_64",
    out: ["syscalls-x86_64.S"],
    srcs: ["SYSCALLS.TXT"],
    tools: ["gensyscalls"],
    cmd: "$(location gensyscalls) x86_64 $(in) > $(out)",
}

cc_library_static {
    defaults: ["libc_defaults"],
    srcs: ["bionic/__set_errno.cpp"],
    arch: {
        arm: {
            srcs: [":syscalls-arm"],
        },
        arm64: {
            srcs: [":syscalls-arm64"],
        },
        riscv64: {
            srcs: [":syscalls-riscv64"],
        },
        x86: {
            srcs: [":syscalls-x86"],
        },
        x86_64: {
            srcs: [":syscalls-x86_64"],
        },
    },
    name: "libc_syscalls",
}

// ========================================================
// libc_aeabi.a
// This is an LP32 ARM-only library that needs to be built with -fno-builtin
// to avoid infinite recursion. For the other architectures we just build an
// empty library to keep this makefile simple.
// ========================================================

cc_library_static {
    defaults: ["libc_defaults"],
    arch: {
        arm: {
            srcs: ["arch-arm/bionic/__aeabi.c"],
        },
    },
    name: "libc_aeabi",
    cflags: ["-fno-builtin"],
}

// ========================================================
// libc_common.a --- everything shared by libc.a and libc.so
// ========================================================

cc_library_static {
    defaults: ["libc_defaults"],
    name: "libc_common",

    whole_static_libs: [
        "libarm-optimized-routines-string",
        "libasync_safe",
        "libc_bionic",
        "libc_bootstrap",
        "libc_dns",
        "libc_fortify",
        "libc_freebsd",
        "libc_freebsd_large_stack",
        "libc_freebsd_ldexp",
        "libc_gdtoa",
        "libc_netbsd",
        "libc_openbsd",
        "libc_openbsd_large_stack",
        "libc_syscalls",
        "libc_tzcode",
        "libstdc++",
    ],

    arch: {
        arm: {
            whole_static_libs: ["libc_aeabi"],
        },
    },
}

// ========================================================
// libc_static_dispatch.a/libc_dynamic_dispatch.a --- string/memory "ifuncs"
// (Actually ifuncs for libc.so, but a home-grown alternative for libc.a.)
// ========================================================

cc_defaults {
    name: "libc_dispatch_defaults",
    defaults: ["libc_defaults"],
    arch: {
        x86_64: {
            srcs: ["arch-x86_64/dynamic_function_dispatch.cpp"],
        },
        x86: {
            srcs: ["arch-x86/dynamic_function_dispatch.cpp"],
        },
        arm: {
            srcs: ["arch-arm/dynamic_function_dispatch.cpp"],
        },
        arm64: {
            srcs: ["arch-arm64/dynamic_function_dispatch.cpp"],
        },
    },
    // Prevent the compiler from inserting calls to libc/taking the address of
    // a jump table from within an ifunc (or, in the static case, code that
    // can be executed arbitrarily early).
    cflags: [
        "-ffreestanding",
        "-fno-stack-protector",
        "-fno-jump-tables",
    ],
}

cc_library_static {
    name: "libc_static_dispatch",
    defaults: ["libc_dispatch_defaults"],
    cflags: [
        "-DBIONIC_STATIC_DISPATCH",
    ],
}

cc_library_static {
    name: "libc_dynamic_dispatch",
    defaults: ["libc_dispatch_defaults"],
    cflags: [
        "-DBIONIC_DYNAMIC_DISPATCH",
    ],
}

// ========================================================
// libc_common_static.a For static binaries.
// ========================================================
cc_library_static {
    defaults: ["libc_defaults"],
    name: "libc_common_static",

    whole_static_libs: [
        "libc_common",
        "libc_static_dispatch",
    ],
}

// ========================================================
// libc_common_shared.a For shared libraries.
// ========================================================
cc_library_static {
    defaults: ["libc_defaults"],
    name: "libc_common_shared",

    whole_static_libs: [
        "libc_common",
        "libc_dynamic_dispatch",
    ],
}

// Versions of dl_iterate_phdr and similar APIs used to lookup unwinding information in a static
// executable.
cc_library_static {
    name: "libc_unwind_static",
    defaults: ["libc_defaults"],
    cflags: ["-DLIBC_STATIC"],

    srcs: ["bionic/dl_iterate_phdr_static.cpp"],
    arch: {
        // arm32-specific dl_unwind_find_exidx and __gnu_Unwind_Find_exidx APIs
        arm: {
            srcs: ["arch-arm/bionic/exidx_static.c"],
        },
    },
}

// ========================================================
// libc_nomalloc.a
// ========================================================
//
// This is a version of the static C library used by the dynamic linker that exclude malloc. It also
// excludes functions selected using ifunc's (e.g. for string.h). Link in either
// libc_static_dispatch or libc_dynamic_dispatch to provide those functions.

cc_library_static {
    name: "libc_nomalloc",
    defaults: ["libc_defaults"],

    whole_static_libs: [
        "libc_common",
        "libc_init_static",
        "libc_unwind_static",
    ],
}

filegroup {
    name: "libc_sources_shared",
    srcs: [
        "arch-common/bionic/crtbegin_so.c",
        "arch-common/bionic/crtbrand.S",
        "bionic/android_mallopt.cpp",
        "bionic/gwp_asan_wrappers.cpp",
        "bionic/heap_tagging.cpp",
        "bionic/malloc_common.cpp",
        "bionic/malloc_common_dynamic.cpp",
        "bionic/android_profiling_dynamic.cpp",
        "bionic/malloc_heapprofd.cpp",
        "bionic/malloc_limit.cpp",
        "bionic/ndk_cruft.cpp",
        "bionic/ndk_cruft_data.cpp",
        "bionic/NetdClient.cpp",
        "arch-common/bionic/crtend_so.S",
    ],
}

filegroup {
    name: "libc_sources_static",
    srcs: [
        "bionic/android_mallopt.cpp",
        "bionic/gwp_asan_wrappers.cpp",
        "bionic/heap_tagging.cpp",
        "bionic/malloc_common.cpp",
        "bionic/malloc_limit.cpp",
    ],
}

filegroup {
    name: "libc_sources_shared_arm",
    srcs: [
        "arch-arm/bionic/exidx_dynamic.c",
        "arch-arm/bionic/atexit_legacy.c",
    ],
}

// ========================================================
// libc.a + libc.so
// ========================================================
cc_defaults {
    defaults: [
        "libc_defaults",
        "libc_native_allocator_defaults",
        "bug_24465209_workaround",
        "keep_symbols",
    ],
    name: "libc_library_defaults",
    product_variables: {
        platform_sdk_version: {
            asflags: ["-DPLATFORM_SDK_VERSION=%d"],
        },
    },
    static: {
        srcs: [":libc_sources_static"],
        cflags: ["-DLIBC_STATIC"],
        whole_static_libs: [
            "gwp_asan",
            "libc_init_static",
            "libc_common_static",
            "libc_unwind_static",
        ],
    },
    shared: {
        srcs: [":libc_sources_shared"],
        whole_static_libs: [
            "gwp_asan",
            "libc_init_dynamic",
            "libc_common_shared",
            "libunwind-exported",
        ],
    },

    required: [
        "tzdata_prebuilt",
        "tz_version_prebuilt", // Version metadata for tzdata to help debugging.
    ],

    // Do not pack libc.so relocations; see http://b/20645321 for details.
    pack_relocations: false,

    shared_libs: [
        "ld-android",
        "libdl",
    ],
    static_libs: [
        "libdl_android",
    ],

    nocrt: true,

    arch: {
        arm: {
            version_script: ":libc.arm.map",
            no_libcrt: true,

            shared: {
                srcs: [":libc_sources_shared_arm"],
                // special for arm
                cflags: ["-DCRT_LEGACY_WORKAROUND"],
                // For backwards compatibility, some arm32 builtins are exported from libc.so.
                static_libs: ["libclang_rt.builtins-exported"],
            },

            ldflags: [
                // Since we preserve the debug_frame for libc, do not compress
                // in this case to make unwinds as fast as possible.
                "-Wl,--compress-debug-sections=none",
            ],
        },
        arm64: {
            version_script: ":libc.arm64.map",
        },
        riscv64: {
            version_script: ":libc.riscv64.map",
        },
        x86: {
            version_script: ":libc.x86.map",
            no_libcrt: true,

            shared: {
                // For backwards compatibility, some x86 builtins are exported from libc.so.
                static_libs: ["libclang_rt.builtins-exported"],
            },
        },
        x86_64: {
            version_script: ":libc.x86_64.map",
        },
    },

    apex_available: [
        "com.android.runtime",
    ],

    target: {
        native_bridge: {
            shared: {
                installable: false,
            },
        },
    },
}

cc_library {
    name: "libc",
    defaults: [
        "libc_library_defaults",
    ],
    stubs: {
        symbol_file: "libc.map.txt",
        versions: [
            "29",
            "R",
            "current",
        ],
    },
    static_ndk_lib: true,
    llndk: {
        symbol_file: "libc.map.txt",
        export_headers_as_system: true,
        export_llndk_headers: ["libc_headers"],
    },
}

cc_library {
    name: "libc_hwasan",
    defaults: [
        "libc_library_defaults",
    ],
    sanitize: {
        hwaddress: true,
    },
    enabled: false,
    target: {
        android_arm64: {
            enabled: true,
        },
    },
    stem: "libc",
    relative_install_path: "hwasan",
    // We don't really need the stubs, but this needs to stay to trigger the
    // symlink logic in soong.
    stubs: {
        symbol_file: "libc.map.txt",
    },
    native_bridge_supported: false,
    // It is never correct to depend on this directly. This is only
    // needed for the runtime apex, and in base_system.mk, and system_image_defaults
    // which is default module for soong-defined system image.
    visibility: [
        "//bionic/apex",
        "//visibility:any_system_partition",
    ],
}

genrule {
    name: "libc.arm.map",
    out: ["libc.arm.map.txt"],
    srcs: ["libc.map.txt"],
    tools: ["generate-version-script"],
    cmd: "$(location generate-version-script) arm $(in) $(out)",
}

genrule {
    name: "libc.arm64.map",
    out: ["libc.arm64.map.txt"],
    srcs: ["libc.map.txt"],
    tools: ["generate-version-script"],
    cmd: "$(location generate-version-script) arm64 $(in) $(out)",
}

genrule {
    name: "libc.riscv64.map",
    out: ["libc.riscv64.map.txt"],
    srcs: ["libc.map.txt"],
    tools: ["generate-version-script"],
    cmd: "$(location generate-version-script) riscv64 $(in) $(out)",
}

genrule {
    name: "libc.x86.map",
    out: ["libc.x86.map.txt"],
    srcs: ["libc.map.txt"],
    tools: ["generate-version-script"],
    cmd: "$(location generate-version-script) x86 $(in) $(out)",
}

genrule {
    name: "libc.x86_64.map",
    out: ["libc.x86_64.map.txt"],
    srcs: ["libc.map.txt"],
    tools: ["generate-version-script"],
    cmd: "$(location generate-version-script) x86_64 $(in) $(out)",
}

// Headers that only other parts of the platform can include.
cc_library_headers {
    name: "bionic_libc_platform_headers",
    defaults: ["linux_bionic_supported"],
    visibility: [
        "//art:__subpackages__",
        "//bionic:__subpackages__",
        "//frameworks:__subpackages__",
        "//device/generic/goldfish-opengl:__subpackages__",
        "//external/gwp_asan:__subpackages__",
        "//external/perfetto:__subpackages__",
        "//external/scudo:__subpackages__",
        "//system/core/debuggerd:__subpackages__",
        "//system/core/init:__subpackages__",
        "//system/core/libcutils:__subpackages__",
        "//system/memory/libmemunreachable:__subpackages__",
        "//system/unwinding/libunwindstack:__subpackages__",
        "//tools/security/sanitizer-status:__subpackages__",
    ],
    vendor_available: true,
    product_available: true,
    ramdisk_available: true,
    vendor_ramdisk_available: true,
    recovery_available: true,
    native_bridge_supported: true,
    export_include_dirs: [
        "platform",
    ],
    system_shared_libs: [],
    stl: "none",
    sdk_version: "current",

    min_sdk_version: "29",
    apex_available: [
        "//apex_available:platform",
        "//apex_available:anyapex",
    ],
}

cc_library_headers {
    name: "libc_uapi_headers",
    visibility: [
        "//external/musl",
        "//external/rust/crates/v4l2r/android",
    ],
    llndk: {
        llndk_headers: true,
    },
    host_supported: true,
    vendor_available: true,
    product_available: true,
    ramdisk_available: true,
    vendor_ramdisk_available: true,
    recovery_available: true,
    native_bridge_supported: true,
    apex_available: [
        "//apex_available:platform",
        "//apex_available:anyapex",
    ],
    // used by most APEXes indirectly via libunwind_llvm
    min_sdk_version: "apex_inherit",

    no_libcrt: true,
    stl: "none",
    system_shared_libs: [],

    // The build system generally requires that any dependencies of a target
    // with an sdk_version must have a lower sdk_version. By setting sdk_version
    // to 1 we let targets with an sdk_version that need to depend on the libc
    // headers but cannot depend on libc itself due to circular dependencies
    // (such as libunwind_llvm) depend on the headers. Setting sdk_version to 1
    // is correct because the headers can support any sdk_version.
    sdk_version: "1",

    export_system_include_dirs: [
        "kernel/uapi",
        "kernel/android/scsi",
        "kernel/android/uapi",
    ],

    arch: {
        arm: {
            export_system_include_dirs: ["kernel/uapi/asm-arm"],
        },
        arm64: {
            export_system_include_dirs: ["kernel/uapi/asm-arm64"],
        },
        riscv64: {
            export_system_include_dirs: ["kernel/uapi/asm-riscv"],
        },
        x86: {
            export_system_include_dirs: ["kernel/uapi/asm-x86"],
        },
        x86_64: {
            export_system_include_dirs: ["kernel/uapi/asm-x86"],
        },
    },
}

cc_library_headers {
    name: "libc_headers",
    host_supported: true,
    native_bridge_supported: true,
    vendor_available: true,
    product_available: true,
    ramdisk_available: true,
    vendor_ramdisk_available: true,
    recovery_available: true,
    sdk_version: "1",

    apex_available: [
        "//apex_available:platform",
        "//apex_available:anyapex",
    ],
    // used by most APEXes indirectly via libunwind_llvm
    min_sdk_version: "apex_inherit",
    visibility: [
        "//bionic:__subpackages__", // visible to bionic
        // ... and only to these places (b/152668052)
        "//external/arm-optimized-routines",
        "//external/gwp_asan",
        "//external/jemalloc_new",
        "//external/libunwind_llvm",
        "//external/llvm-libc",
        "//external/scudo",
        "//system/core/property_service/libpropertyinfoparser",
        "//system/extras/toolchain-extras",
    ],

    stl: "none",
    no_libcrt: true,
    system_shared_libs: [],

    target: {
        android: {
            export_system_include_dirs: ["include"],
            header_libs: ["libc_uapi_headers"],
            export_header_lib_headers: ["libc_uapi_headers"],
        },
        linux_bionic: {
            export_system_include_dirs: ["include"],
            header_libs: ["libc_uapi_headers"],
            export_header_lib_headers: ["libc_uapi_headers"],
        },
    },
}

// ========================================================
// libstdc++.so and libstdc++.a.
// ========================================================

cc_library {
    defaults: [
        "libc_defaults",
        "bug_24465209_workaround",
    ],
    include_dirs: ["bionic/libstdc++/include"],
    srcs: [
        "bionic/__cxa_guard.cpp",
        "bionic/__cxa_pure_virtual.cpp",
        "bionic/new.cpp",
    ],
    name: "libstdc++",
    static_ndk_lib: true,
    static_libs: ["libasync_safe"],
    apex_available: [
        "//apex_available:platform",
    ],

    static: {
        system_shared_libs: [],
    },
    target: {
        bionic: {
            shared: {
                system_shared_libs: ["libc"],
            },
        },
    },

    arch: {
        arm: {
            version_script: ":libstdc++.arm.map",
        },
        arm64: {
            version_script: ":libstdc++.arm64.map",
        },
        riscv64: {
            version_script: ":libstdc++.riscv64.map",
        },
        x86: {
            version_script: ":libstdc++.x86.map",
        },
        x86_64: {
            version_script: ":libstdc++.x86_64.map",
        },
    },
}

genrule {
    name: "libstdc++.arm.map",
    out: ["libstdc++.arm.map.txt"],
    srcs: ["libstdc++.map.txt"],
    tools: ["generate-version-script"],
    cmd: "$(location generate-version-script) arm $(in) $(out)",
}

genrule {
    name: "libstdc++.arm64.map",
    out: ["libstdc++.arm64.map.txt"],
    srcs: ["libstdc++.map.txt"],
    tools: ["generate-version-script"],
    cmd: "$(location generate-version-script) arm64 $(in) $(out)",
}

genrule {
    name: "libstdc++.riscv64.map",
    out: ["libstdc++.riscv64.map.txt"],
    srcs: ["libstdc++.map.txt"],
    tools: ["generate-version-script"],
    cmd: "$(location generate-version-script) riscv64 $(in) $(out)",
}

genrule {
    name: "libstdc++.x86.map",
    out: ["libstdc++.x86.map.txt"],
    srcs: ["libstdc++.map.txt"],
    tools: ["generate-version-script"],
    cmd: "$(location generate-version-script) x86 $(in) $(out)",
}

genrule {
    name: "libstdc++.x86_64.map",
    out: ["libstdc++.x86_64.map.txt"],
    srcs: ["libstdc++.map.txt"],
    tools: ["generate-version-script"],
    cmd: "$(location generate-version-script) x86_64 $(in) $(out)",
}

// ========================================================
// crt object files.
// ========================================================

cc_defaults {
    name: "crt_and_memtag_defaults",
    defaults: ["linux_bionic_supported"],
    vendor_available: true,
    product_available: true,
    ramdisk_available: true,
    vendor_ramdisk_available: true,
    recovery_available: true,
    native_bridge_supported: true,
    apex_available: [
        "//apex_available:platform",
        "//apex_available:anyapex",
    ],
    // Generate NDK variants of the CRT objects for every supported API level.
    min_sdk_version: "16",
    stl: "none",
    crt: true,
    cflags: [
        "-Wno-gcc-compat",
        "-Wall",
        "-Werror",
    ],
    sanitize: {
        never: true,
    },
}

cc_defaults {
    name: "crt_defaults",
    defaults: ["crt_and_memtag_defaults"],
    system_shared_libs: [],
}

cc_defaults {
    name: "crt_so_defaults",
    defaults: ["crt_defaults"],
    stl: "none",
}

cc_object {
    name: "crtbrand",
    local_include_dirs: [
        "private", // crtbrand.S depends on private/bionic_asm_note.h
    ],
    // crtbrand.S needs to know the platform SDK version.
    product_variables: {
        platform_sdk_version: {
            asflags: ["-DPLATFORM_SDK_VERSION=%d"],
        },
    },
    srcs: ["arch-common/bionic/crtbrand.S"],

    defaults: ["crt_so_defaults"],
    // crtbrand is an intermediate artifact, not a final CRT object.
    exclude_from_ndk_sysroot: true,
}

cc_object {
    name: "crtbegin_so",
    local_include_dirs: ["include"],
    srcs: ["arch-common/bionic/crtbegin_so.c"],

    defaults: ["crt_so_defaults"],
    objs: [
        "crtbrand",
    ],
}

cc_object {
    name: "crtend_so",
    local_include_dirs: [
        "private", // crtend_so.S depends on private/bionic_asm_arm64.h
    ],
    srcs: ["arch-common/bionic/crtend_so.S"],

    defaults: ["crt_so_defaults"],
}

cc_object {
    name: "crtbegin_static",

    local_include_dirs: [
        "include",
        "bionic", // crtbegin.c includes bionic/libc_init_common.h
    ],

    cflags: ["-DCRTBEGIN_STATIC"],

    srcs: ["arch-common/bionic/crtbegin.c"],
    objs: [
        "crtbrand",
    ],
    defaults: ["crt_defaults"],
    // When using libc.a, we're using the latest library regardless of target API level.
    min_sdk_version: "current",
}

cc_object {
    name: "crtbegin_dynamic",

    local_include_dirs: [
        "include",
        "bionic", // crtbegin.c includes bionic/libc_init_common.h
    ],
    srcs: ["arch-common/bionic/crtbegin.c"],
    objs: [
        "crtbrand",
    ],
    target: {
        linux_bionic: {
            generated_sources: ["host_bionic_linker_asm"],
            objs: [
                "linker_wrapper",
            ],
        },
    },
    defaults: ["crt_defaults"],
}

cc_object {
    // We rename crtend.o to crtend_android.o to avoid a
    // name clash between gcc and bionic.
    name: "crtend_android",
    local_include_dirs: [
        "private", // crtend.S depends on private/bionic_asm_arm64.h
    ],
    srcs: ["arch-common/bionic/crtend.S"],

    defaults: ["crt_defaults"],
}

cc_object {
    name: "crt_pad_segment",
    local_include_dirs: [
        "private", // crt_pad_segment.S depends on private/bionic_asm_note.h
    ],
    srcs: ["arch-common/bionic/crt_pad_segment.S"],

    defaults: ["crt_defaults"],
}

cc_library_static {
    name: "note_memtag_heap_async",
    arch: {
        arm64: {
            srcs: ["arch-arm64/bionic/note_memtag_heap_async.S"],
        },
    },
    sdk_version: "minimum",

    defaults: ["crt_and_memtag_defaults"],
}

cc_library_static {
    name: "note_memtag_heap_sync",
    arch: {
        arm64: {
            srcs: ["arch-arm64/bionic/note_memtag_heap_sync.S"],
        },
    },
    sdk_version: "minimum",

    defaults: ["crt_and_memtag_defaults"],
}

// ========================================================
// libc dependencies for baremetal Rust projects.
// ========================================================

// This library contains the following unresolved symbols:
//     __errno
//     __x86_shared_cache_size_half (x86_64 only)
//     abort
//     async_safe_fatal_va_list
cc_library_static {
    name: "librust_baremetal",
    defaults: ["cc_baremetal_defaults"],
    header_libs: ["libc_headers"],
    include_dirs: [
        "bionic/libc/async_safe/include",
        "bionic/libc/platform",
    ],
    cflags: [
        "-Wall",
        "-Werror",
    ],
    srcs: [
        "bionic/fortify.cpp",
        "bionic/strtol.cpp",
    ],
    arch: {
        arm: {
            enabled: false,
        },
        arm64: {
            srcs: [
                "arch-arm64/string/__memcpy_chk.S",
            ],
        },
        x86: {
            enabled: false,
        },
        x86_64: {
            asflags: [
                // Statically choose the SSE2 memset_generic as memset for
                // baremetal, where we do not have the dynamic function
                // dispatch machinery.
                "-Dmemset_generic=memset",
            ],
            srcs: [
                "arch-x86_64/string/sse2-memmove-slm.S",
                "arch-x86_64/string/sse2-memset-slm.S",
                "arch-x86_64/string/sse2-stpcpy-slm.S",
                "arch-x86_64/string/sse2-stpncpy-slm.S",
                "arch-x86_64/string/sse2-strcat-slm.S",
                "arch-x86_64/string/sse2-strcpy-slm.S",
                "arch-x86_64/string/sse2-strlen-slm.S",
                "arch-x86_64/string/sse2-strncat-slm.S",
                "arch-x86_64/string/sse2-strncpy-slm.S",
                "arch-x86_64/string/sse4-memcmp-slm.S",
                "arch-x86_64/string/ssse3-strcmp-slm.S",
                "arch-x86_64/string/ssse3-strncmp-slm.S",
            ],
        },
    },
    whole_static_libs: [
        "//external/llvm-libc:llvmlibc",
        "libarm-optimized-routines-mem",
        "libc_netbsd",
    ],
    system_shared_libs: [],
    nocrt: true,
    stl: "none",
    visibility: [
        "//packages/modules/Virtualization/libs/libvmbase",
    ],

    // b/358211032: This library gets linked into a rust rlib.  Disable LTO
    // until cross-language lto is supported.
    lto: {
        never: true,
    },
}

// ========================================================
// NDK headers.
// ========================================================

ndk_headers {
    name: "common_libc",
    from: "include",
    to: "",
    srcs: ["include/**/*.h"],
    license: "NOTICE",
    // These don't pass the bad verification we do because many of them are
    // arch-specific, and they aren't necessarily independently includable.
    // That's not much of a problem though, since C-incompaitibilities in the
    // UAPI headers should run into problems long before they reach us.
    skip_verification: true,
}

ndk_headers {
    name: "libc_uapi",
    from: "kernel/uapi",
    to: "",
    srcs: [
        "kernel/uapi/asm-generic/**/*.h",
        "kernel/uapi/drm/**/*.h",
        "kernel/uapi/linux/**/*.h",
        "kernel/uapi/misc/**/*.h",
        "kernel/uapi/mtd/**/*.h",
        "kernel/uapi/rdma/**/*.h",
        "kernel/uapi/scsi/**/*.h",
        "kernel/uapi/sound/**/*.h",
        "kernel/uapi/video/**/*.h",
        "kernel/uapi/xen/**/*.h",
    ],
    license: "NOTICE",
    skip_verification: true,
}

ndk_headers {
    name: "libc_kernel_android_uapi_linux",
    from: "kernel/android/uapi/linux",
    to: "linux",
    srcs: ["kernel/android/uapi/linux/**/*.h"],
    license: "NOTICE",
}

ndk_headers {
    name: "libc_kernel_android_scsi",
    from: "kernel/android/scsi/scsi",
    to: "scsi",
    srcs: ["kernel/android/scsi/**/*.h"],
    license: "NOTICE",
    skip_verification: true,
}

ndk_headers {
    name: "libc_asm_arm",
    from: "kernel/uapi/asm-arm",
    to: "arm-linux-androideabi",
    srcs: ["kernel/uapi/asm-arm/**/*.h"],
    license: "NOTICE",
    skip_verification: true,
}

ndk_headers {
    name: "libc_asm_arm64",
    from: "kernel/uapi/asm-arm64",
    to: "aarch64-linux-android",
    srcs: ["kernel/uapi/asm-arm64/**/*.h"],
    license: "NOTICE",
    skip_verification: true,
}

ndk_headers {
    name: "libc_asm_riscv64",
    from: "kernel/uapi/asm-riscv",
    to: "riscv64-linux-android",
    srcs: ["kernel/uapi/asm-riscv/**/*.h"],
    license: "NOTICE",
    skip_verification: true,
}

ndk_headers {
    name: "libc_asm_x86",
    from: "kernel/uapi/asm-x86",
    to: "i686-linux-android",
    srcs: ["kernel/uapi/asm-x86/**/*.h"],
    license: "NOTICE",
    skip_verification: true,
}

ndk_headers {
    name: "libc_asm_x86_64",
    from: "kernel/uapi/asm-x86",
    to: "x86_64-linux-android",
    srcs: ["kernel/uapi/asm-x86/**/*.h"],
    license: "NOTICE",
    skip_verification: true,
}

ndk_library {
    name: "libc",
    symbol_file: "libc.map.txt",
    first_version: "9",
}

ndk_library {
    name: "libstdc++",
    symbol_file: "libstdc++.map.txt",
    first_version: "9",
}

// Export these headers for toolbox to process
filegroup {
    name: "kernel_input_headers",
    srcs: [
        "kernel/uapi/linux/input.h",
        "kernel/uapi/linux/input-event-codes.h",
    ],
}

// Generate a syscall name / number mapping. These objects are text files
// (thanks to the -dD -E flags) and not binary files. They will then be
// consumed by the genseccomp.py script and converted into C++ code.
cc_defaults {
    name: "libseccomp_gen_syscall_nrs_defaults",
    recovery_available: true,
    srcs: ["seccomp/gen_syscall_nrs.cpp"],
    cflags: [
        "-dD",
        "-E",
        "-Wall",
        "-Werror",
        // Soong implicitly adds a -c argument that we override with -E.
        // Suppress Clang's error about the unused -c argument.
        "-Wno-unused-command-line-argument",
        "-nostdinc",
    ],
}

cc_object {
    name: "libseccomp_gen_syscall_nrs_arm",
    defaults: ["libseccomp_gen_syscall_nrs_defaults"],
    local_include_dirs: [
        "kernel/uapi/asm-arm",
        "kernel/uapi",
    ],
}

cc_object {
    name: "libseccomp_gen_syscall_nrs_arm64",
    defaults: ["libseccomp_gen_syscall_nrs_defaults"],
    local_include_dirs: [
        "kernel/uapi/asm-arm64",
        "kernel/uapi",
    ],
}

cc_object {
    name: "libseccomp_gen_syscall_nrs_riscv64",
    defaults: ["libseccomp_gen_syscall_nrs_defaults"],
    local_include_dirs: [
        "kernel/uapi/asm-riscv",
        "kernel/uapi",
    ],
}

cc_object {
    name: "libseccomp_gen_syscall_nrs_x86",
    defaults: ["libseccomp_gen_syscall_nrs_defaults"],
    srcs: ["seccomp/gen_syscall_nrs_x86.cpp"],
    exclude_srcs: ["seccomp/gen_syscall_nrs.cpp"],
    local_include_dirs: [
        "kernel/uapi/asm-x86",
        "kernel/uapi",
    ],
}

cc_object {
    name: "libseccomp_gen_syscall_nrs_x86_64",
    defaults: ["libseccomp_gen_syscall_nrs_defaults"],
    srcs: ["seccomp/gen_syscall_nrs_x86_64.cpp"],
    exclude_srcs: ["seccomp/gen_syscall_nrs.cpp"],
    local_include_dirs: [
        "kernel/uapi/asm-x86",
        "kernel/uapi",
    ],
}

filegroup {
    name: "all_kernel_uapi_headers",
    srcs: ["kernel/uapi/**/*.h"],
}

cc_genrule {
    name: "func_to_syscall_nrs",
    recovery_available: true,
    cmd: "$(location genfunctosyscallnrs) --out-dir=$(genDir) $(in)",

    tools: ["genfunctosyscallnrs"],

    srcs: [
        "SYSCALLS.TXT",
    ],

    arch: {
        arm: {
            srcs: [
                ":libseccomp_gen_syscall_nrs_arm",
                ":libseccomp_gen_syscall_nrs_arm64",
            ],
        },
        arm64: {
            srcs: [
                ":libseccomp_gen_syscall_nrs_arm",
                ":libseccomp_gen_syscall_nrs_arm64",
            ],
        },
        riscv64: {
            srcs: [":libseccomp_gen_syscall_nrs_riscv64"],
        },
        x86: {
            srcs: [
                ":libseccomp_gen_syscall_nrs_x86",
                ":libseccomp_gen_syscall_nrs_x86_64",
            ],
        },
        x86_64: {
            srcs: [
                ":libseccomp_gen_syscall_nrs_x86",
                ":libseccomp_gen_syscall_nrs_x86_64",
            ],
        },
    },

    out: [
        "func_to_syscall_nrs.h",
    ],
}

// SECCOMP_BLOCKLIST_APP_ZYGOTE.TXT = SECCOMP_BLOCKLIST_APP.txt - setresgid*
genrule {
    name: "generate_app_zygote_blocklist",
    out: ["SECCOMP_BLOCKLIST_APP_ZYGOTE.TXT"],
    srcs: ["SECCOMP_BLOCKLIST_APP.TXT"],
    cmd: "grep -v '^setresgid' $(in) > $(out)",
}

filegroup {
    name: "seccomp_syscalls_sources_zygote",
    srcs: [
        "SYSCALLS.TXT",
        "SECCOMP_ALLOWLIST_COMMON.TXT",
        "SECCOMP_ALLOWLIST_APP.TXT",
        "SECCOMP_BLOCKLIST_COMMON.TXT",
        "SECCOMP_PRIORITY.TXT",
        ":generate_app_zygote_blocklist",
    ],
}

filegroup {
    name: "seccomp_syscalls_sources_app",
    srcs: [
        "SYSCALLS.TXT",
        "SECCOMP_ALLOWLIST_COMMON.TXT",
        "SECCOMP_ALLOWLIST_APP.TXT",
        "SECCOMP_BLOCKLIST_COMMON.TXT",
        "SECCOMP_BLOCKLIST_APP.TXT",
        "SECCOMP_PRIORITY.TXT",
    ],
}

filegroup {
    name: "seccomp_syscalls_sources_system",
    srcs: [
        "SYSCALLS.TXT",
        "SECCOMP_ALLOWLIST_COMMON.TXT",
        "SECCOMP_ALLOWLIST_SYSTEM.TXT",
        "SECCOMP_BLOCKLIST_COMMON.TXT",
        "SECCOMP_PRIORITY.TXT",
    ],
}

cc_genrule {
    name: "libseccomp_policy_app_zygote_sources_x86",
    recovery_available: true,
    cmd: "$(location genseccomp) --out-dir=$(genDir) --name-modifier=app_zygote $(in)",
    tools: ["genseccomp"],
    srcs: [
        ":seccomp_syscalls_sources_zygote",
        ":libseccomp_gen_syscall_nrs_x86",
        ":libseccomp_gen_syscall_nrs_x86_64",
    ],
    out: [
        "x86_app_zygote_policy.cpp",
        "x86_64_app_zygote_policy.cpp",
    ],
    enabled: false,
    arch: {
        x86: {
            enabled: true,
        },
        x86_64: {
            enabled: true,
        },
    },
}

cc_genrule {
    name: "libseccomp_policy_app_zygote_sources_arm",
    recovery_available: true,
    cmd: "$(location genseccomp) --out-dir=$(genDir) --name-modifier=app_zygote $(in)",
    tools: ["genseccomp"],
    srcs: [
        ":seccomp_syscalls_sources_zygote",
        ":libseccomp_gen_syscall_nrs_arm",
        ":libseccomp_gen_syscall_nrs_arm64",
    ],
    out: [
        "arm_app_zygote_policy.cpp",
        "arm64_app_zygote_policy.cpp",
    ],
    enabled: false,
    arch: {
        arm: {
            enabled: true,
        },
        arm64: {
            enabled: true,
        },
    },
}

cc_genrule {
    name: "libseccomp_policy_app_zygote_sources_riscv64",
    recovery_available: true,
    cmd: "$(location genseccomp) --out-dir=$(genDir) --name-modifier=app_zygote $(in)",
    tools: ["genseccomp"],
    srcs: [
        ":seccomp_syscalls_sources_zygote",
        ":libseccomp_gen_syscall_nrs_riscv64",
    ],
    out: [
        "riscv64_app_zygote_policy.cpp",
    ],
    enabled: false,
    arch: {
        riscv64: {
            enabled: true,
        },
    },
}

cc_genrule {
    name: "libseccomp_policy_app_sources_x86",
    recovery_available: true,
    cmd: "$(location genseccomp) --out-dir=$(genDir) --name-modifier=app $(in)",
    tools: ["genseccomp"],
    srcs: [
        ":seccomp_syscalls_sources_app",
        ":libseccomp_gen_syscall_nrs_x86",
        ":libseccomp_gen_syscall_nrs_x86_64",
    ],
    out: [
        "x86_app_policy.cpp",
        "x86_64_app_policy.cpp",
    ],
    enabled: false,
    arch: {
        x86: {
            enabled: true,
        },
        x86_64: {
            enabled: true,
        },
    },
}

cc_genrule {
    name: "libseccomp_policy_app_sources_arm",
    recovery_available: true,
    cmd: "$(location genseccomp) --out-dir=$(genDir) --name-modifier=app $(in)",
    tools: ["genseccomp"],
    srcs: [
        ":seccomp_syscalls_sources_app",
        ":libseccomp_gen_syscall_nrs_arm",
        ":libseccomp_gen_syscall_nrs_arm64",
    ],
    out: [
        "arm_app_policy.cpp",
        "arm64_app_policy.cpp",
    ],
    enabled: false,
    arch: {
        arm: {
            enabled: true,
        },
        arm64: {
            enabled: true,
        },
    },
}

cc_genrule {
    name: "libseccomp_policy_app_sources_riscv64",
    recovery_available: true,
    cmd: "$(location genseccomp) --out-dir=$(genDir) --name-modifier=app $(in)",
    tools: ["genseccomp"],
    srcs: [
        ":seccomp_syscalls_sources_app",
        ":libseccomp_gen_syscall_nrs_riscv64",
    ],
    out: [
        "riscv64_app_policy.cpp",
    ],
    enabled: false,
    arch: {
        riscv64: {
            enabled: true,
        },
    },
}

cc_genrule {
    name: "libseccomp_policy_system_sources_x86",
    recovery_available: true,
    cmd: "$(location genseccomp) --out-dir=$(genDir) --name-modifier=system $(in)",
    tools: ["genseccomp"],
    srcs: [
        ":seccomp_syscalls_sources_system",
        ":libseccomp_gen_syscall_nrs_x86",
        ":libseccomp_gen_syscall_nrs_x86_64",
    ],
    out: [
        "x86_system_policy.cpp",
        "x86_64_system_policy.cpp",
    ],
    enabled: false,
    arch: {
        x86: {
            enabled: true,
        },
        x86_64: {
            enabled: true,
        },
    },
}

cc_genrule {
    name: "libseccomp_policy_system_sources_arm",
    recovery_available: true,
    cmd: "$(location genseccomp) --out-dir=$(genDir) --name-modifier=system $(in)",
    tools: ["genseccomp"],
    srcs: [
        ":seccomp_syscalls_sources_system",
        ":libseccomp_gen_syscall_nrs_arm",
        ":libseccomp_gen_syscall_nrs_arm64",
    ],
    out: [
        "arm_system_policy.cpp",
        "arm64_system_policy.cpp",
    ],
    enabled: false,
    arch: {
        arm: {
            enabled: true,
        },
        arm64: {
            enabled: true,
        },
    },
}

cc_genrule {
    name: "libseccomp_policy_system_sources_riscv64",
    recovery_available: true,
    cmd: "$(location genseccomp) --out-dir=$(genDir) --name-modifier=system $(in)",
    tools: ["genseccomp"],
    srcs: [
        ":seccomp_syscalls_sources_system",
        ":libseccomp_gen_syscall_nrs_riscv64",
    ],
    out: [
        "riscv64_system_policy.cpp",
    ],
    enabled: false,
    arch: {
        riscv64: {
            enabled: true,
        },
    },
}

cc_library {
    name: "libseccomp_policy",
    recovery_available: true,
    generated_headers: ["func_to_syscall_nrs"],

    arch: {
        arm: {
            generated_sources: [
                "libseccomp_policy_app_sources_arm",
                "libseccomp_policy_app_zygote_sources_arm",
                "libseccomp_policy_system_sources_arm",
            ],
        },
        arm64: {
            generated_sources: [
                "libseccomp_policy_app_sources_arm",
                "libseccomp_policy_app_zygote_sources_arm",
                "libseccomp_policy_system_sources_arm",
            ],
        },
        riscv64: {
            generated_sources: [
                "libseccomp_policy_app_sources_riscv64",
                "libseccomp_policy_app_zygote_sources_riscv64",
                "libseccomp_policy_system_sources_riscv64",
            ],
        },
        x86: {
            generated_sources: [
                "libseccomp_policy_app_sources_x86",
                "libseccomp_policy_app_zygote_sources_x86",
                "libseccomp_policy_system_sources_x86",
            ],
        },
        x86_64: {
            generated_sources: [
                "libseccomp_policy_app_sources_x86",
                "libseccomp_policy_app_zygote_sources_x86",
                "libseccomp_policy_system_sources_x86",
            ],
        },
    },

    srcs: [
        "seccomp/seccomp_policy.cpp",
    ],

    export_include_dirs: ["seccomp/include"],
    cflags: [
        "-Wall",
        "-Werror",
    ],
    shared: {
        shared_libs: ["libbase"],
    },
    static: {
        static_libs: ["libbase"],
    },
}

// TODO: add this directly to musl like libexecinfo and libb64?
cc_library_host_static {
    name: "libfts",
    srcs: [
        "bionic/fts.c",
        "upstream-openbsd/lib/libc/stdlib/recallocarray.c",
    ],
    export_include_dirs: ["fts/include"],
    local_include_dirs: [
        "private",
        "upstream-openbsd/android/include",
    ],
    cflags: [
        "-std=gnu99",
        "-include openbsd-compat.h",
        "-Wno-unused-parameter",
    ],
    enabled: false,
    target: {
        musl: {
            enabled: true,
        },
    },
    stl: "none",
}

cc_library_host_static {
    name: "libexecinfo",
    visibility: ["//external/musl"],
    srcs: ["bionic/execinfo.cpp"],
    export_include_dirs: ["execinfo/include"],
    local_include_dirs: ["private"],
    enabled: false,
    target: {
        musl: {
            enabled: true,
            system_shared_libs: [],
            header_libs: ["libc_musl_headers"],
        },
    },
    stl: "none",
}

cc_library_host_static {
    name: "libb64",
    visibility: ["//external/musl"],
    srcs: ["upstream-openbsd/lib/libc/net/base64.c"],
    export_include_dirs: ["b64/include"],
    local_include_dirs: [
        "private",
        "upstream-openbsd/android/include",
    ],
    cflags: [
        "-std=gnu99",
        "-include openbsd-compat.h",
    ],
    enabled: false,
    target: {
        musl: {
            enabled: true,
            system_shared_libs: [],
            header_libs: ["libc_musl_headers"],
        },
    },
    stl: "none",
}

// Export kernel uapi headers to be used in the musl sysroot.
// Also include the execinfo headers for the libexecinfo and the
// b64 headers for libb64 embedded in musl libc.
cc_genrule {
    name: "libc_musl_sysroot_bionic_headers",
    visibility: ["//external/musl"],
    host_supported: true,
    device_supported: false,
    enabled: false,
    target: {
        musl: {
            enabled: true,
        },
    },
    srcs: [
        "kernel/uapi/**/*.h",
        "kernel/android/**/*.h",
        "execinfo/include/**/*.h",
        "b64/include/**/*.h",

        "NOTICE",

        ":libc_musl_sysroot_bionic_arch_headers",
    ],
    out: ["libc_musl_sysroot_bionic_headers.zip"],
    tools: [
        "soong_zip",
        "merge_zips",
        "zip2zip",
    ],
    cmd: "BIONIC_LIBC_DIR=$$(dirname $(location NOTICE)) && " +
        "$(location soong_zip) -o $(genDir)/sysroot.zip -symlinks=false" +
        // NOTICE
        " -j -f $(location NOTICE) " +
        // headers
        " -P include " +
        "  -C $${BIONIC_LIBC_DIR}/kernel/uapi " +
        "  -D $${BIONIC_LIBC_DIR}/kernel/uapi " +
        "  -C $${BIONIC_LIBC_DIR}/kernel/android/scsi " +
        "  -D $${BIONIC_LIBC_DIR}/kernel/android/scsi " +
        "  -C $${BIONIC_LIBC_DIR}/kernel/android/uapi " +
        "  -D $${BIONIC_LIBC_DIR}/kernel/android/uapi " +
        "  -C $${BIONIC_LIBC_DIR}/execinfo/include " +
        "  -D $${BIONIC_LIBC_DIR}/execinfo/include " +
        "  -C $${BIONIC_LIBC_DIR}/b64/include " +
        "  -D $${BIONIC_LIBC_DIR}/b64/include " +
        " && " +
        "$(location zip2zip) -i $(genDir)/sysroot.zip -o $(genDir)/sysroot-renamed.zip " +
        " -x **/BUILD " +
        " include/**/*:include/ " +
        " NOTICE:NOTICE.bionic " +
        " && " +
        "$(location merge_zips) $(out) $(location :libc_musl_sysroot_bionic_arch_headers) $(genDir)/sysroot-renamed.zip",
}

// The architecture-specific bits have to be handled separately because the label varies based
// on architecture, which prevents using $(locations) to find them and requires using $(in)
// instead, which would mix in all the other files if this were part of the main libc_musl_sysroot
// genrule.
cc_genrule {
    name: "libc_musl_sysroot_bionic_arch_headers",
    visibility: ["//visibility:private"],
    host_supported: true,
    device_supported: false,
    enabled: false,
    target: {
        musl: {
            enabled: true,
        },
    },
    arch: {
        arm: {
            srcs: ["kernel/uapi/asm-arm/**/*.h"],
        },
        arm64: {
            srcs: ["kernel/uapi/asm-arm64/**/*.h"],
        },
        x86: {
            srcs: ["kernel/uapi/asm-x86/**/*.h"],
        },
        x86_64: {
            srcs: ["kernel/uapi/asm-x86/**/*.h"],
        },
    },
    out: ["libc_musl_sysroot_bionic_arch_headers.zip"],
    tools: ["soong_zip"],
    cmd: "includes=($(in)) && $(location soong_zip) -o $(out) -P include/asm -j -D $$(dirname $${includes[0]})",
}

cc_genrule {
    name: "bionic_sysroot_crt_objects",
    visibility: ["//visibility:private"],
    out: ["bionic_sysroot_crt_objects.zip"],
    tools: ["soong_zip"],
    srcs: [
        ":crtbegin_dynamic",
        ":crtbegin_so",
        ":crtbegin_static",
        ":crtend_android",
        ":crtend_so",
    ],
    cmd: "$(location soong_zip) -o $(out) -j " +
        "-f $(location :crtbegin_dynamic) " +
        "-f $(location :crtbegin_so) " +
        "-f $(location :crtbegin_static) " +
        "-f $(location :crtend_android) " +
        "-f $(location :crtend_so)",
    dist: {
        targets: ["bionic_sysroot_crt_objects"],
    },
    arch: {
        arm: {
            dist: {
                suffix: "_arm",
            },
        },
        arm64: {
            dist: {
                suffix: "_arm64",
            },
        },
        riscv64: {
            dist: {
                suffix: "_riscv64",
            },
        },
        x86: {
            dist: {
                suffix: "_x86",
            },
        },
        x86_64: {
            dist: {
                suffix: "_x86_64",
            },
        },
    },
}

filegroup {
    name: "linux_capability_header",
    srcs: ["kernel/uapi/linux/capability.h"],
}