Skip to content

Enable lld ICF for the Python bindings on Linux #6535

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
Fedr merged 3 commits into from
Aug 7, 2026
Merged

Enable lld ICF for the Python bindings on Linux #6535

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
796cbca
Enable lld ICF for Python bindings on Linux
Fedr Aug 6, 2026
d0802e7
Drop redundant compile flags: lld LTO codegen always emits per-functi…
Fedr Aug 6, 2026
3d96433
Merge branch 'master' into bindings-icf
Fedr Aug 7, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 7 additions & 0 deletions scripts/mrbind/generate.mk
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -314,6 +314,13 @@ MODE := release
ifeq ($(MODE),release)
override EXTRA_CFLAGS += -Oz -flto=thin -DNDEBUG
override EXTRA_LDFLAGS += -Oz -flto=thin $(if $(IS_MACOS),-Wl$(comma)-x,-s)# Apple's ld rejects `-s`; `-Wl,-x` drops local Mach-O symbols (most of __LINKEDIT) instead.
ifneq ($(IS_LINUX),)
# Fold byte-identical functions: the bindings are ~190k tiny near-duplicate template
# instantiations, and ICF removes 11% of mrmeshpy.so (7 MB unpacked, 2.3 MB compressed).
# Linux-only until lld-link (Windows) and ld64.lld (macOS) get their own measurements.
# No -ffunction-sections needed: lld's LTO codegen always emits per-function sections.
override EXTRA_LDFLAGS += -Wl,--icf=all
endif
else ifeq ($(MODE),debug)
override EXTRA_CFLAGS += -g
override EXTRA_LDFLAGS += -g
Expand Down
Loading