Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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39 lines
1.2 KiB
39 lines
1.2 KiB
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load( |
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"//bazel:build_defs.bzl", |
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"UPB_DEFAULT_COPTS", |
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) |
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def py_extension(name, srcs, deps=[]): |
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version_script = name + "_version_script.lds" |
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symbol = "PyInit_" + name |
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native.genrule( |
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name = "gen_" + version_script, |
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outs = [version_script], |
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cmd = "echo 'message { global: " + symbol + "; local: *; };' > $@", |
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) |
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native.cc_binary( |
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name = name, |
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srcs = srcs, |
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copts = UPB_DEFAULT_COPTS + [ |
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# The Python API requires patterns that are ISO C incompatible, like |
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# casts between function pointers and object pointers. |
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"-Wno-pedantic", |
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], |
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# We use a linker script to hide all symbols except the entry point for |
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# the module. |
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linkopts = select({ |
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"@platforms//os:linux": ["-Wl,--version-script,$(location :" + version_script + ")"], |
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"@platforms//os:macos": [ |
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"-Wl,-exported_symbol", |
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"-Wl,_" + symbol, |
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], |
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}), |
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linkshared = True, |
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linkstatic = True, |
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deps = deps + [ |
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":" + version_script, |
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"@system_python//:python_headers", |
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], |
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)
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