// // libdl // cc_library { // NOTE: --exclude-libs=libgcc.a makes sure that any symbols libdl.so pulls from // libgcc.a are made static to libdl.so. This in turn ensures that libraries that // a) pull symbols from libgcc.a and b) depend on libdl.so will not rely on libdl.so // to provide those symbols, but will instead pull them from libgcc.a. Specifically, // we use this property to make sure libc.so has its own copy of the code from // libgcc.a it uses. // // DO NOT REMOVE --exclude-libs! ldflags: ["-Wl,--exclude-libs=libgcc.a"], // for x86, exclude libgcc_eh.a for the same reasons as above arch: { arm: { version_script: "libdl.arm.map", }, arm64: { version_script: "libdl.arm64.map", }, mips: { version_script: "libdl.mips.map", }, mips64: { version_script: "libdl.mips64.map", }, x86: { ldflags: ["-Wl,--exclude-libs=libgcc_eh.a"], version_script: "libdl.x86.map", }, x86_64: { ldflags: ["-Wl,--exclude-libs=libgcc_eh.a"], version_script: "libdl.x86_64.map", }, }, srcs: ["libdl.c"], cflags: [ "-Wall", "-Wextra", "-Wunused", "-Werror", ], stl: "none", name: "libdl", // NOTE: libdl needs __aeabi_unwind_cpp_pr0 from libgcc.a but libgcc.a needs a // few symbols from libc. Using --no-undefined here results in having to link // against libc creating a circular dependency which is removed and we end up // with missing symbols. Since this library is just a bunch of stubs, we set // LOCAL_ALLOW_UNDEFINED_SYMBOLS to remove --no-undefined from the linker flags. allow_undefined_symbols: true, system_shared_libs: [], sanitize: ["never"], }