| # Copyright 2019 The Fuchsia Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| library("c") { |
| shared = true |
| static = false |
| |
| # At link time and in DT_SONAME, musl is known as libc.so. But the |
| # (only) place it needs to be installed at runtime is where the |
| # PT_INTERP strings embedded in executables point, which is ld.so.1. |
| install_path = "lib/${toolchain.libprefix}ld.so.1" |
| |
| public_configs = [ "$zx/third_party/ulib/musl:headers" ] |
| |
| # The code comes from musl, where a source_set is defined. |
| sources = [] |
| deps = [ |
| "$zx/third_party/ulib/musl", |
| "sanitizers", |
| "setjmp", |
| "zircon", |
| ] |
| |
| # Suppress the ${toolchain.implicit_deps} that points back to here. |
| no_implicit_deps = true |
| |
| # Don't link against the shared libc++. |
| configs += [ "$zx/public/gn/config:static-libc++" ] |
| |
| # TODO(BLD-353): temporary kludges; see //zircon/public/sysroot |
| metadata = { |
| legacy_sysroot = [ |
| { |
| libc = rebase_path("$target_out_dir/libc.so.debug", root_build_dir) |
| }, |
| { |
| include_dirs = [ |
| "//zircon/system/public", |
| "//zircon/system/ulib/zircon/include", |
| "//zircon/third_party/ulib/musl/include", |
| ] |
| }, |
| { |
| sdk = { |
| include_dir = "//zircon/system/public" |
| headers = [ |
| "zircon/assert.h", |
| "zircon/boot/bootdata.h", |
| "zircon/boot/driver-config.h", |
| "zircon/boot/e820.h", |
| "zircon/boot/image.h", |
| "zircon/boot/multiboot.h", |
| "zircon/boot/netboot.h", |
| "zircon/boot/sysconfig.h", |
| "zircon/compiler.h", |
| "zircon/driver/binding.h", |
| "zircon/errors.h", |
| "zircon/features.h", |
| "zircon/fidl.h", |
| "zircon/hw/gpt.h", |
| "zircon/hw/i2c.h", |
| "zircon/hw/pci.h", |
| "zircon/hw/usb.h", |
| "zircon/hw/usb/audio.h", |
| "zircon/hw/usb/cdc.h", |
| "zircon/hw/usb/dfu.h", |
| "zircon/hw/usb/hid.h", |
| "zircon/hw/usb/hub.h", |
| "zircon/hw/usb/ums.h", |
| "zircon/hw/usb/video.h", |
| "zircon/limits.h", |
| "zircon/listnode.h", |
| "zircon/pixelformat.h", |
| "zircon/process.h", |
| "zircon/processargs.h", |
| "zircon/rights.h", |
| "zircon/syscalls.banjo", |
| "zircon/syscalls.h", |
| "zircon/syscalls/debug.h", |
| "zircon/syscalls/exception.h", |
| "zircon/syscalls/hypervisor.h", |
| "zircon/syscalls/iommu.h", |
| "zircon/syscalls/log.h", |
| "zircon/syscalls/object.h", |
| "zircon/syscalls/pci.h", |
| "zircon/syscalls/policy.h", |
| "zircon/syscalls/port.h", |
| "zircon/syscalls/profile.h", |
| "zircon/syscalls/resource.h", |
| "zircon/syscalls/smc.h", |
| "zircon/syscalls/system.h", |
| "zircon/syscalls/types.h", |
| "zircon/time.h", |
| "zircon/tls.h", |
| "zircon/types.h", |
| |
| # Note: Most of zircon/device is excluded from SDKs. |
| # TODO(FIDL-273,ZX-2503): remove this allowlist. |
| "zircon/device/audio.h", |
| "zircon/device/ioctl-wrapper.h", # Needed by zircon/device/ramdisk.h |
| "zircon/device/ioctl.h", # Needed by zircon/device/ramdisk.h |
| ] |
| } |
| }, |
| { |
| sdk = { |
| include_dir = "//zircon/third_party/ulib/musl/include" |
| headers = [ |
| "alloca.h", |
| "ar.h", |
| "arpa/ftp.h", |
| "arpa/inet.h", |
| "arpa/nameser.h", |
| "arpa/nameser_compat.h", |
| "arpa/telnet.h", |
| "arpa/tftp.h", |
| "assert.h", |
| "bits/aarch64/endian.h", |
| "bits/aarch64/fenv.h", |
| "bits/aarch64/io.h", |
| "bits/aarch64/ioctl.h", |
| "bits/aarch64/ipc.h", |
| "bits/aarch64/reg.h", |
| "bits/aarch64/setjmp.h", |
| "bits/aarch64/signal.h", |
| "bits/aarch64/stat.h", |
| "bits/alltypes.h", |
| "bits/endian.h", |
| "bits/errno.h", |
| "bits/fcntl.h", |
| "bits/fenv.h", |
| "bits/io.h", |
| "bits/ioctl.h", |
| "bits/ipc.h", |
| "bits/limits.h", |
| "bits/msg.h", |
| "bits/null.h", |
| "bits/poll.h", |
| "bits/posix.h", |
| "bits/reg.h", |
| "bits/resource.h", |
| "bits/sem.h", |
| "bits/setjmp.h", |
| "bits/shm.h", |
| "bits/signal.h", |
| "bits/socket.h", |
| "bits/stat.h", |
| "bits/statfs.h", |
| "bits/termios.h", |
| "bits/x86_64/endian.h", |
| "bits/x86_64/fenv.h", |
| "bits/x86_64/io.h", |
| "bits/x86_64/ioctl.h", |
| "bits/x86_64/ipc.h", |
| "bits/x86_64/reg.h", |
| "bits/x86_64/setjmp.h", |
| "bits/x86_64/signal.h", |
| "bits/x86_64/stat.h", |
| "byteswap.h", |
| "complex.h", |
| "cpio.h", |
| "crypt.h", |
| "ctype.h", |
| "dirent.h", |
| "dlfcn.h", |
| "elf.h", |
| "endian.h", |
| "err.h", |
| "errno.h", |
| "fcntl.h", |
| "features.h", |
| "fenv.h", |
| "fmtmsg.h", |
| "fnmatch.h", |
| "getopt.h", |
| "glob.h", |
| "grp.h", |
| "iconv.h", |
| "ifaddrs.h", |
| "inttypes.h", |
| "iso646.h", |
| "langinfo.h", |
| "libgen.h", |
| "limits.h", |
| "link.h", |
| "locale.h", |
| "malloc.h", |
| "math.h", |
| "memory.h", |
| "monetary.h", |
| "net/ethernet.h", |
| "net/if.h", |
| "net/if_arp.h", |
| "net/route.h", |
| "netdb.h", |
| "netinet/ether.h", |
| "netinet/icmp6.h", |
| "netinet/if_ether.h", |
| "netinet/igmp.h", |
| "netinet/in.h", |
| "netinet/in_systm.h", |
| "netinet/ip.h", |
| "netinet/ip6.h", |
| "netinet/ip_icmp.h", |
| "netinet/tcp.h", |
| "netinet/udp.h", |
| "netpacket/packet.h", |
| "nl_types.h", |
| "paths.h", |
| "poll.h", |
| "pthread.h", |
| "pwd.h", |
| "regex.h", |
| "resolv.h", |
| "sched.h", |
| "search.h", |
| "semaphore.h", |
| "setjmp.h", |
| "signal.h", |
| "spawn.h", |
| "stdio.h", |
| "stdlib.h", |
| "string.h", |
| "strings.h", |
| "stropts.h", |
| "sys/acct.h", |
| "sys/auxv.h", |
| "sys/dir.h", |
| "sys/errno.h", |
| "sys/eventfd.h", |
| "sys/fcntl.h", |
| "sys/file.h", |
| "sys/fsuid.h", |
| "sys/io.h", |
| "sys/ioctl.h", |
| "sys/ipc.h", |
| "sys/klog.h", |
| "sys/mman.h", |
| "sys/mount.h", |
| "sys/msg.h", |
| "sys/mtio.h", |
| "sys/param.h", |
| "sys/personality.h", |
| "sys/poll.h", |
| "sys/quota.h", |
| "sys/random.h", |
| "sys/reboot.h", |
| "sys/reg.h", |
| "sys/select.h", |
| "sys/sem.h", |
| "sys/shm.h", |
| "sys/signal.h", |
| "sys/signalfd.h", |
| "sys/socket.h", |
| "sys/stat.h", |
| "sys/statfs.h", |
| "sys/statvfs.h", |
| "sys/stropts.h", |
| "sys/swap.h", |
| "sys/syslog.h", |
| "sys/termios.h", |
| "sys/time.h", |
| "sys/timeb.h", |
| "sys/timerfd.h", |
| "sys/times.h", |
| "sys/timex.h", |
| "sys/ttydefaults.h", |
| "sys/types.h", |
| "sys/ucontext.h", |
| "sys/uio.h", |
| "sys/un.h", |
| "sys/utsname.h", |
| "sys/vfs.h", |
| "sys/wait.h", |
| "sysexits.h", |
| "syslog.h", |
| "tar.h", |
| "termios.h", |
| "threads.h", |
| "time.h", |
| "uchar.h", |
| "ucontext.h", |
| "unistd.h", |
| "utime.h", |
| "values.h", |
| "wait.h", |
| "wchar.h", |
| "wctype.h", |
| "wordexp.h", |
| "zircon/dlfcn.h", |
| "zircon/sanitizer.h", |
| "zircon/threads.h", |
| ] |
| } |
| }, |
| { |
| sdk = { |
| # TODO(TC-446): The stripped binary doesn't even have section |
| # headers, so the linker can't handle it. Eventually we'll have |
| # linker stubs. For now, just use the unstripped library to link |
| # against. This matches what library() gives the SDK via |
| # zircon_library(). |
| source = rebase_path("$target_out_dir/libc.so.debug", root_build_dir) |
| link = "lib/libc.so" |
| } |
| }, |
| { |
| sdk = { |
| source = rebase_path("$target_out_dir/libc.so.debug", root_build_dir) |
| debug = "debug/libc.so" |
| } |
| }, |
| { |
| sdk = { |
| source = rebase_path("$target_out_dir/libc.so", root_build_dir) |
| dist = "dist/lib/ld.so.1" |
| } |
| }, |
| ] |
| foreach(lib, |
| [ |
| "libdl.so", |
| "libm.so", |
| "libpthread.so", |
| "librt.so", |
| ]) { |
| legacy_sysroot += [ |
| { |
| sdk = { |
| source = |
| rebase_path("$zx/third_party/ulib/musl/lib.ld", root_build_dir) |
| link = "lib/$lib" |
| } |
| }, |
| ] |
| } |
| } |
| } |
| |
| source_set("crt1") { |
| sources = [ |
| "Scrt1.cpp", |
| ] |
| |
| # This runs before all runtime setup. |
| configs += [ "$zx/public/gn/config:no_sanitizers" ] |
| |
| # Minimize the code. Even if there were lazy PLT resolution, it's never |
| # worthwhile to have PLT entries for main or __libc_start_main, since |
| # they are always used eagerly anyway. |
| cflags = [ "-fno-plt" ] |
| |
| # TODO(BLD-353): temporary kludges |
| metadata = { |
| legacy_sysroot = [ |
| { |
| crt1 = rebase_path("$target_out_dir/crt1.Scrt1.cpp.o", root_build_dir) |
| sdk = { |
| source = crt1 |
| link = "lib/Scrt1.o" |
| } |
| }, |
| ] |
| } |
| } |
