Stowage/godot
2
0
Fork 0
mirror of https://github.com/godotengine/godot.git synced 2025-10-19 16:03:29 +00:00
Code Issues Projects Releases Packages Wiki Activity

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

Browse source 
Adds support for LTO on macOS and Android. We don't have much experience
with LTO on these platforms so for now we keep it disabled by default
even when `production=yes` is set.

Similarly for iOS where we ship object files for the user to link in
Xcode so LTO makes builds extremely slow to link.

`production=yes` defaults to full LTO.
ThinLTO is much faster for LLVM-based compilers but seems to produce
bigger binaries (at least for the Web platform).
This commit is contained in:
Rémi Verschelde 2022-07-21 15:15:54 +02:00
parent 69233093d7
commit c2c659db32
7 changed files with 94 additions and 60 deletions
Download patch file Download diff file Expand all files Collapse all files

12
platform/android/detect.py
View file

@ -47,6 +47,9 @@ def get_flags():
return [
("arch", "arm64"), # Default for convenience.
("tools", False),
# Benefits of LTO for Android (size, performance) haven't been clearly established yet.
# So for now we override the default value which may be set when using `production=yes`.
("lto", "none"),
]
@ -132,6 +135,15 @@ def configure(env):
env.Append(CPPDEFINES=["_DEBUG"])
env.Append(CPPFLAGS=["-UNDEBUG"])
# LTO
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"])
# Compiler configuration
env["SHLIBSUFFIX"] = ".so"