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SCons: Refactor LTO options with lto=<none|thin|full>

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Adds support for LTO on macOS and Android.
Disable LTO by default on iOS even if `production=yes` is set.

Also add `linker` option to `server` platform missed in #63283.

Refactor code handling old arguments to make it simpler (breaks compat,
but is explicit enough about it and scripts are easy to fix).
This commit is contained in:
Rémi Verschelde
2022-07-21 15:15:54 +02:00
parent 4d4c6c187d
commit 570e6c1730
8 changed files with 142 additions and 73 deletions
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14
platform/javascript/detect.py
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@@ -31,7 +31,6 @@ def get_opts():
return [
("initial_memory", "Initial WASM memory (in MiB)", 32),
BoolVariable("use_assertions", "Use Emscripten runtime assertions", False),
BoolVariable("use_thinlto", "Use ThinLTO", False),
BoolVariable("use_ubsan", "Use Emscripten undefined behavior sanitizer (UBSAN)", False),
BoolVariable("use_asan", "Use Emscripten address sanitizer (ASAN)", False),
BoolVariable("use_lsan", "Use Emscripten leak sanitizer (LSAN)", False),
@@ -101,12 +100,13 @@ def configure(env):
env["ENV"] = os.environ
# LTO
if env["use_thinlto"]:
env.Append(CCFLAGS=["-flto=thin"])
env.Append(LINKFLAGS=["-flto=thin"])
elif env["use_lto"]:
env.Append(CCFLAGS=["-flto=full"])
env.Append(LINKFLAGS=["-flto=full"])
if env["lto"] != "none":
if env["lto"] == "thin":
env.Append(CCFLAGS=["-flto=thin"])
env.Append(LINKFLAGS=["-flto=thin"])
else:
env.Append(CCFLAGS=["-flto"])
env.Append(LINKFLAGS=["-flto"])
# Sanitizers
if env["use_ubsan"]: