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      1 //
      2 // libdl
      3 //
      4 cc_library_static {
      5     name: "libdl_static",
      6 
      7     srcs: [
      8         "libdl.cpp",
      9         "libdl_cfi.cpp",
     10     ],
     11 
     12     cflags: [
     13         "-Wall",
     14         "-Wextra",
     15         "-Wunused",
     16         "-Werror",
     17     ],
     18 
     19     // For private/CFIShadow.h.
     20     include_dirs: ["bionic/libc"],
     21 
     22     stl: "none",
     23 
     24     sanitize: {
     25         never: true,
     26     },
     27 }
     28 
     29 cc_library {
     30     name: "libdl",
     31     static_ndk_lib: true,
     32 
     33     defaults: ["linux_bionic_supported"],
     34 
     35     // NOTE: --exclude-libs=libgcc.a makes sure that any symbols libdl.so pulls from
     36     // libgcc.a are made static to libdl.so.  This in turn ensures that libraries that
     37     // a) pull symbols from libgcc.a and b) depend on libdl.so will not rely on libdl.so
     38     // to provide those symbols, but will instead pull them from libgcc.a.  Specifically,
     39     // we use this property to make sure libc.so has its own copy of the code from
     40     // libgcc.a it uses.
     41     //
     42     // DO NOT REMOVE --exclude-libs!
     43 
     44     ldflags: ["-Wl,--exclude-libs=libgcc.a"],
     45 
     46     // for x86, exclude libgcc_eh.a for the same reasons as above
     47     arch: {
     48         arm: {
     49             version_script: "libdl.arm.map",
     50             ldflags: ["-Wl,--hash-style=both"],
     51         },
     52         arm64: {
     53             version_script: "libdl.arm64.map",
     54         },
     55         mips: {
     56             version_script: "libdl.mips.map",
     57         },
     58         mips64: {
     59             version_script: "libdl.mips64.map",
     60         },
     61         x86: {
     62             ldflags: [
     63                 "-Wl,--exclude-libs=libgcc_eh.a",
     64                 "-Wl,--hash-style=both",
     65             ],
     66             version_script: "libdl.x86.map",
     67         },
     68         x86_64: {
     69             ldflags: ["-Wl,--exclude-libs=libgcc_eh.a"],
     70             version_script: "libdl.x86_64.map",
     71         },
     72     },
     73     shared: {
     74         whole_static_libs: ["libdl_static"],
     75     },
     76     static: {
     77         srcs: ["libdl_static.c"],
     78     },
     79     cflags: [
     80         "-Wall",
     81         "-Wextra",
     82         "-Wunused",
     83         "-Werror",
     84     ],
     85     stl: "none",
     86 
     87     nocrt: true,
     88     system_shared_libs: [],
     89 
     90     // This is placeholder library the actual implementation is (currently)
     91     // provided by the linker.
     92     shared_libs: ["ld-android"],
     93 
     94     sanitize: {
     95         never: true,
     96     },
     97 }
     98 
     99 ndk_library {
    100     name: "libdl",
    101     symbol_file: "libdl.map.txt",
    102     first_version: "9",
    103 }
    104 
    105 llndk_library {
    106     name: "libdl",
    107     symbol_file: "libdl.map.txt",
    108 }
    109