82d41a76d3
This is a working solution for generating a separate Emscripten cache.
Note that this requires an additional entry in the workspace as follows:
```starlark
load("@emsdk//:emscripten_cache.bzl", emsdk_emscripten_cache = "emscripten_cache")
emsdk_emscripten_cache()
```
When used like this, the default Emscripten cache will be used. However,
if the entry is as follows:
```starlark
load("@emsdk//:emscripten_cache.bzl", emsdk_emscripten_cache = "emscripten_cache")
emsdk_emscripten_cache(flags = ["--lto"])
```
Then embuilder will be called to build all system libraries and ports
(i.e., the `ALL` option to embuilder) with the LTO option enabled. This
can take awhile, so I have also made possible to specify which libraries
you want to build explicitly:
```starlark
load("@emsdk//:emscripten_cache.bzl", emsdk_emscripten_cache = "emscripten_cache")
emsdk_emscripten_cache(
flags = ["--lto"],
libraries = [
"crtbegin",
"libprintf_long_double-debug",
"libstubs-debug",
"libnoexit",
"libc-debug",
"libdlmalloc",
"libcompiler_rt",
"libc++-noexcept",
"libc++abi-debug-noexcept",
"libsockets"
]
)
```
Resolves #807, resolves #971, resolves #1099, resolves #1362, resolves
#1401
37 lines
1.2 KiB
Bash
Executable File
37 lines
1.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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echo "test bazel"
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set -x
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set -e
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# Get the latest version number from emscripten-releases-tag.json.
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VER=$(scripts/get_release_info.py emscripten-releases-tags.json latest)
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# Based on the latest version number, get the commit hash for that version.
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HASH=$(scripts/get_release_info.py emscripten-releases-tags.json hash ${VER})
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FAILMSG="!!! scripts/update_bazel_workspace.py needs to be run !!!"
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# Ensure the WORKSPACE file is up to date with the latest version.
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grep ${VER} bazel/revisions.bzl || (echo ${FAILMSG} && false)
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grep ${HASH} bazel/revisions.bzl || (echo ${FAILMSG} && false)
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cd bazel
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bazel build //hello-world:hello-world-wasm
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bazel build //hello-world:hello-world-wasm-simd
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cd test_external
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bazel build //:hello-world-wasm
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bazel build //long_command_line:long_command_line_wasm
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bazel build //:hello-embind-wasm --compilation_mode dbg # debug
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# Test use of the closure compiler
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bazel build //:hello-embind-wasm --compilation_mode opt # release
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# This function should not be minified if the externs file is loaded correctly.
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grep "customJSFunctionToTestClosure" bazel-bin/hello-embind-wasm/hello-embind.js
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cd ../test_secondary_lto_cache
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bazel build //:hello-world-wasm
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