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Optimize sandbox performance #1045

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merged 6 commits into from
May 9, 2022
Merged

Optimize sandbox performance #1045

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58819fd
Optimize sandbox performance
jfirebaugh Apr 30, 2022
a184280
Linux wants clang to link
jfirebaugh May 2, 2022
de46564
all_files not needed?
jfirebaugh May 2, 2022
0eca147
Linux wants llc
jfirebaugh May 2, 2022
186178b
And llvm-ar
jfirebaugh May 2, 2022
b2ac8db
Templated build_file_content
jfirebaugh May 7, 2022
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31 changes: 21 additions & 10 deletions bazel/BUILD
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Original file line number Diff line number Diff line change
Expand Up @@ -35,23 +35,34 @@ config_setting(
filegroup(name = "empty")

alias(
name = "binaries",
name = "compiler_files",
actual = select({
":linux": "@emscripten_bin_linux//:all",
":macos": "@emscripten_bin_mac//:all",
":macos_arm64": "@emscripten_bin_mac_arm64//:all",
":windows": "@emscripten_bin_win//:all",
":linux": "@emscripten_bin_linux//:compiler_files",
":macos": "@emscripten_bin_mac//:compiler_files",
":macos_arm64": "@emscripten_bin_mac_arm64//:compiler_files",
":windows": "@emscripten_bin_win//:compiler_files",
"//conditions:default": ":empty",
}),
)

alias(
name = "node_modules",
name = "linker_files",
actual = select({
":linux": "@emscripten_npm_linux//:node_modules",
":macos": "@emscripten_npm_mac//:node_modules",
":macos_arm64": "@emscripten_npm_mac//:node_modules",
":windows": "@emscripten_npm_win//:node_modules",
":linux": "@emscripten_bin_linux//:linker_files",
":macos": "@emscripten_bin_mac//:linker_files",
":macos_arm64": "@emscripten_bin_mac_arm64//:linker_files",
":windows": "@emscripten_bin_win//:linker_files",
"//conditions:default": ":empty",
}),
)

alias(
name = "ar_files",
actual = select({
":linux": "@emscripten_bin_linux//:ar_files",
":macos": "@emscripten_bin_mac//:ar_files",
":macos_arm64": "@emscripten_bin_mac_arm64//:ar_files",
":windows": "@emscripten_bin_win//:ar_files",
"//conditions:default": ":empty",
}),
)
52 changes: 30 additions & 22 deletions bazel/emscripten_toolchain/BUILD.bazel
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Expand Up @@ -8,44 +8,52 @@ package(default_visibility = ["//visibility:public"])
node_files = "@nodejs_host//:node_files" if existing_rule("@nodejs_host//:node_files") else "@nodejs//:node_files"

filegroup(
name = "common-script-includes",
name = "common_files",
srcs = [
"emar.sh",
"emar.bat",
"emcc.sh",
"emcc.bat",
"emscripten_config",
"env.sh",
"env.bat",
"@emsdk//:binaries",
"@emsdk//:node_modules",
node_files,
],
)

filegroup(
name = "compile-emscripten",
srcs = [":common-script-includes"],
name = "compiler_files",
srcs = [
"emcc.sh",
"emcc.bat",
"@emsdk//:compiler_files",
":common_files",
],
)

filegroup(
name = "link-emscripten",
name = "linker_files",
srcs = [
"emcc_link.sh",
"emcc_link.bat",
"link_wrapper.py",
":common-script-includes",
"@emsdk//:binaries",
node_files,
"@emsdk//:linker_files",
":common_files",
],
)

filegroup(
name = "ar_files",
srcs = [
"emar.sh",
"emar.bat",
"@emsdk//:ar_files",
":common_files",
],
)

filegroup(
name = "every-file",
name = "all_files",
srcs = [
":compile-emscripten",
":link-emscripten",
"@emsdk//:binaries",
":compiler_files",
":linker_files",
":ar_files",
node_files,
],
)
Expand All @@ -59,7 +67,7 @@ emscripten_cc_toolchain_config_rule(
name = "wasm",
cpu = "wasm",
em_config = "emscripten_config",
emscripten_binaries = "@emsdk//:binaries",
emscripten_binaries = "@emsdk//:compiler_files",
script_extension = select({
"@bazel_tools//src/conditions:host_windows": "bat",
"//conditions:default": "sh",
Expand All @@ -68,12 +76,12 @@ emscripten_cc_toolchain_config_rule(

cc_toolchain(
name = "cc-compiler-wasm",
all_files = ":every-file",
ar_files = ":common-script-includes",
all_files = ":all_files",
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Is all_files even needed at all anymore?

ar_files = ":ar_files",
as_files = ":empty",
compiler_files = ":compile-emscripten",
compiler_files = ":compiler_files",
dwp_files = ":empty",
linker_files = ":link-emscripten",
linker_files = ":linker_files",
objcopy_files = ":empty",
strip_files = ":empty",
toolchain_config = "wasm",
Expand Down
39 changes: 37 additions & 2 deletions bazel/emscripten_toolchain/emscripten.BUILD
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Original file line number Diff line number Diff line change
@@ -1,6 +1,41 @@
package(default_visibility = ['//visibility:public'])

filegroup(
name = "all",
srcs = glob(["**"]),
name = "includes",
srcs = glob([
"emscripten/cache/sysroot/include/c++/v1/**",
"emscripten/cache/sysroot/include/compat/**",
"emscripten/cache/sysroot/include/**",
"lib/clang/15.0.0/include/**",
]),
)

filegroup(
name = "compiler_files",
srcs = [
"emscripten/emcc.py",
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Where do tools/*.py and stuff like that get included?

"bin/clang",
"bin/clang++",
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On windows all these executables need to have the .exe extension. A separate BUILD file specifically for windows may be necessary or maybe using build_file_content and template it.

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Thank you for this hint! I've taken the templated build_file_content approach.

":includes",
],
)

filegroup(
name = "linker_files",
srcs = [
"emscripten/emcc.py",
"bin/llvm-nm",
"bin/llvm-objcopy",
"bin/wasm-emscripten-finalize",
"bin/wasm-ld",
"bin/wasm-opt",
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What about the libraries (from the sysroot) that are used during linking? Are they handled separately?

],
)

filegroup(
name = "ar_files",
srcs = [
"emscripten/emar.py",
"bin/llvm-ar",
],
)