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| author | Patrick Georgi <pgeorgi@google.com> | 2021-06-14 23:18:07 +0200 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-06-17 17:02:27 +0000 |
| commit | b322426aa510b4c2fa9edcbc8a6e51939180f2a0 (patch) | |
| tree | 36943de78ba98bc94129a4043a82b1d303c89a8e | |
| parent | 1720d5608109584722d3b7566e8bc1627b14f246 (diff) | |
| download | chrome-ec-b322426aa510b4c2fa9edcbc8a6e51939180f2a0.tar.gz | |
build system: Link with LTO partitioning strategy "one"
By putting all object files in a single LTO partition there's less
room to optimize the build time using multi-threading. On the upside,
the build becomes more reproducible and the build result tends to be
smaller thanks to better optimization opportunities.
This is needed on gcc 11 for now build kodama: without it, the code
grows beyond the bounds it needs to fit in (that gcc 8 manages to hold,
so a regression).
BUG=none
BRANCH=none
TEST=one class of error less with gcc 11
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Change-Id: I86b2c70cb5a2e85024630e7217cf8bd24d349910
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2959922
Reviewed-by: Eric Yilun Lin <yllin@google.com>
Commit-Queue: Patrick Georgi <pgeorgi@chromium.org>
Tested-by: Patrick Georgi <pgeorgi@chromium.org>
| -rw-r--r-- | Makefile.rules | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile.rules b/Makefile.rules index b6a631bec9..8cd04edf38 100644 --- a/Makefile.rules +++ b/Makefile.rules @@ -87,7 +87,7 @@ cmd_bin_to_hex = $(OBJCOPY) -I binary -O ihex \ --change-addresses $(_program_memory_base) $^ $@ cmd_smap = $(NM) $< | sort > $@ cmd_elf = $(CC) $(objs) $(libsharedobjs_elf-y) $(LDFLAGS) \ - -o $@ -Wl,-T,$< -Wl,-Map,$(patsubst %.elf,%.map,$@) + -o $@ -Wl,-T,$< -Wl,-Map,$(patsubst %.elf,%.map,$@) -flto-partition=one cmd_fuzz_exe = $(CXX) $^ $(HOST_TEST_LDFLAGS) $(LDFLAGS_EXTRA) -o $@ cmd_run_fuzz = build/host/$*/$*.exe -seed=1 -runs=1 $(silent) \ $(silent_err) || (echo "Test $* failed!" && false) |