| // |
| // 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"], |
| } |