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