c1589b5564
* Makes provided bazel rules look up @emsdk workspace instead of local workspace * Uses system-specific emscripten binaries instead of defaulting to linux * Provides macros for loading emsdk dependencies (nodejs and emscripten binaries) * Unhardcodes paths in bazel rules and .sh wrappers * `update_bazel_workspace.sh` now updates `revisions.bzl` * `emscripten_deps()` can be fed with specific emscripten version * Adds external usage test Addresses #650 and #696
82 lines
1.7 KiB
Python
82 lines
1.7 KiB
Python
load(":crosstool.bzl", "emscripten_cc_toolchain_config_rule")
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package(default_visibility = ["//visibility:public"])
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filegroup(
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name = "common-script-includes",
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srcs = [
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"emar.sh",
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"emcc.sh",
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"emscripten_config",
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"env.sh",
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"@nodejs//:node_files",
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"@emsdk//:binaries",
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"@emsdk//:node_modules",
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],
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)
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filegroup(
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name = "compile-emscripten",
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srcs = [":common-script-includes"],
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)
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filegroup(
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name = "link-emscripten",
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srcs = [
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"emcc_link.sh",
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"link_wrapper.py",
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":common-script-includes",
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"@emsdk//:binaries",
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"@nodejs//:node_files",
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],
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)
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filegroup(
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name = "every-file",
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srcs = [
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":compile-emscripten",
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":link-emscripten",
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"@emsdk//:binaries",
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"@nodejs//:node_files",
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],
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)
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filegroup(name = "empty")
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# dlmalloc.bc is implictly added by the emscripten toolchain
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cc_library(name = "malloc")
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emscripten_cc_toolchain_config_rule(
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name = "wasm",
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cpu = "wasm",
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em_config = "emscripten_config",
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emscripten_binaries = "@emsdk//:binaries",
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)
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cc_toolchain(
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name = "cc-compiler-wasm",
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all_files = ":every-file",
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ar_files = ":common-script-includes",
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as_files = ":empty",
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compiler_files = ":compile-emscripten",
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dwp_files = ":empty",
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linker_files = ":link-emscripten",
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objcopy_files = ":empty",
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strip_files = ":empty",
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toolchain_config = "wasm",
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toolchain_identifier = "emscripten-wasm",
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)
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cc_toolchain_suite(
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name = "everything",
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toolchains = {
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"wasm": ":cc-compiler-wasm",
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"wasm|emscripten": ":cc-compiler-wasm",
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},
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)
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py_binary(
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name = "wasm_binary",
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srcs = ["wasm_binary.py"],
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)
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