| Message ID | 20190414125041.11512-1-npiggin@gmail.com |
|---|---|
| State | Accepted |
| Headers | show |
| Series | [1/4] build: -fno-asynchronous-unwind-tables | expand |
| Context | Check | Description |
|---|---|---|
| snowpatch_ozlabs/apply_patch | success | Successfully applied on branch master (ff79070d1c4cdc38f2ecb42e45b8322cb1efb819) |
| snowpatch_ozlabs/snowpatch_job_snowpatch-skiboot | success | Test snowpatch/job/snowpatch-skiboot on branch master |
| snowpatch_ozlabs/snowpatch_job_snowpatch-skiboot-dco | success | Signed-off-by present |
Nicholas Piggin <npiggin@gmail.com> writes: > skiboot does not use unwind tables, this option saves about 100kB, > mostly from .text. 10kb off the xz compressed image! Woohoo! Series merged to master as of 065877fc59de64ae22b4677667ce42db609ffdf5. Just before the --orphan-handling=warn patch, I merged in a bump to the toolchain we were using on the centos7 docker image. It's now GCC 8.1 (latest crosstool builds - https://mirrors.edge.kernel.org/pub/tools/crosstool/ ). I heard zero people advocating for ancient GCC (granted, I asked the people in my house, which at the time was me) :)
diff --git a/Makefile.main b/Makefile.main index 8a99ec9f4..68c744d07 100644 --- a/Makefile.main +++ b/Makefile.main @@ -74,7 +74,7 @@ ifeq ($(DEBUG),1) CPPFLAGS += -DDEBUG -DCCAN_LIST_DEBUG endif -CFLAGS := -fno-strict-aliasing -pie -fpie -fno-pic -mbig-endian -m64 +CFLAGS := -fno-strict-aliasing -pie -fpie -fno-pic -mbig-endian -m64 -fno-asynchronous-unwind-tables CFLAGS += -mcpu=power7 CFLAGS += -Wl,--oformat,elf64-powerpc CFLAGS += $(call try-cflag,$(CC),-ffixed-r13) diff --git a/skiboot.lds.S b/skiboot.lds.S index 8d09b40e6..6f6f77155 100644 --- a/skiboot.lds.S +++ b/skiboot.lds.S @@ -175,6 +175,7 @@ SECTIONS /* Discards */ /DISCARD/ : { *(.comment) + *(.eh_frame) *(.interp) } }
skiboot does not use unwind tables, this option saves about 100kB, mostly from .text. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> --- Makefile.main | 2 +- skiboot.lds.S | 1 + 2 files changed, 2 insertions(+), 1 deletion(-)