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| author | Mauro S. M. Rodrigues <maurosr@linux.vnet.ibm.com> | 2020-02-27 14:14:47 -0300 |
|---|---|---|
| committer | Oliver O'Halloran <oohall@gmail.com> | 2020-06-03 17:15:50 +1000 |
| commit | 22817f8d563a069fa9be5202095fd88ddadb21f6 (patch) | |
| tree | 5075316ea1205cea8308f9ab1b98f8de86324880 /Makefile.main | |
| parent | 9b6433c29fddac70eb7b18136b8b130a01c5dc47 (diff) | |
| download | skiboot-22817f8d563a069fa9be5202095fd88ddadb21f6.zip skiboot-22817f8d563a069fa9be5202095fd88ddadb21f6.tar.gz skiboot-22817f8d563a069fa9be5202095fd88ddadb21f6.tar.bz2 | |
Honor DEAD_CODE_ELIMINATION flag
While trying to reduce the size of the final binary I found
DEAD_CODE_ELIMINATION=1 but it didn't change the binary size and
known ununsed functions were seen when inspecting the elf with nm.
Even though the necessary parameters for compiler, -ffunction-sections
and -fdata-sections, are set, ld's --gc-sections wasn't, so add it in
order to honor the flag.
Signed-off-by: Mauro S. M. Rodrigues <maurosr@linux.vnet.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Diffstat (limited to 'Makefile.main')
| -rw-r--r-- | Makefile.main | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Makefile.main b/Makefile.main index dabd073..12aa253 100644 --- a/Makefile.main +++ b/Makefile.main @@ -181,6 +181,7 @@ endif ifeq ($(DEAD_CODE_ELIMINATION),1) LDFLAGS += -Wl,--gc-sections +LDFLAGS_FINAL += --gc-sections endif AFLAGS := -D__ASSEMBLY__ -m64 |