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
31 lines
604 B
Python
31 lines
604 B
Python
local_repository(
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name = "emsdk",
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path = "..",
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)
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load("@emsdk//:deps.bzl", "deps")
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deps()
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load("@emsdk//:emscripten_deps.bzl", "emscripten_deps")
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emscripten_deps()
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load("@emsdk//:toolchains.bzl", "register_emscripten_toolchains")
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register_emscripten_toolchains(cache = {
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"configuration": ["--lto"],
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"targets": [
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"crtbegin",
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"libprintf_long_double-debug",
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"libstubs-debug",
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"libnoexit",
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"libc-debug",
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"libdlmalloc",
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"libcompiler_rt",
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"libc++-noexcept",
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"libc++abi-debug-noexcept",
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"libsockets"
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]
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})
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