* [PATCH] mtd-utils: enable garbage collection of unused function/data sections
@ 2010-10-01 5:37 Mike Frysinger
2010-10-01 6:41 ` Artem Bityutskiy
0 siblings, 1 reply; 2+ messages in thread
From: Mike Frysinger @ 2010-10-01 5:37 UTC (permalink / raw)
To: linux-mtd
On my default build, this cumulatively shaves off ~100KiB of unused
code and data from the mtd-utils programs.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
common.mk | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/common.mk b/common.mk
index 0444ad9..a55c548 100644
--- a/common.mk
+++ b/common.mk
@@ -3,6 +3,7 @@ AR := $(CROSS)ar
RANLIB := $(CROSS)ranlib
# Stolen from Linux build system
+comma = ,
try-run = $(shell set -e; ($(1)) >/dev/null 2>&1 && echo "$(2)" || echo "$(3)")
cc-option = $(call try-run, $(CC) $(1) -c -xc /dev/null -o /dev/null,$(1),$(2))
@@ -12,6 +13,8 @@ WFLAGS := -Wall \
$(call cc-option,-Wwrite-strings) \
$(call cc-option,-Wno-sign-compare)
CFLAGS += $(WFLAGS)
+SECTION_CFLAGS := $(call cc-option,-ffunction-sections -fdata-sections -Wl$(comma)--gc-sections)
+CFLAGS += $(SECTION_CFLAGS)
ifneq ($(WITHOUT_LARGEFILE), 1)
CPPFLAGS += -D_FILE_OFFSET_BITS=64
--
1.7.3.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] mtd-utils: enable garbage collection of unused function/data sections
2010-10-01 5:37 [PATCH] mtd-utils: enable garbage collection of unused function/data sections Mike Frysinger
@ 2010-10-01 6:41 ` Artem Bityutskiy
0 siblings, 0 replies; 2+ messages in thread
From: Artem Bityutskiy @ 2010-10-01 6:41 UTC (permalink / raw)
To: Mike Frysinger; +Cc: linux-mtd
On Fri, 2010-10-01 at 01:37 -0400, Mike Frysinger wrote:
> On my default build, this cumulatively shaves off ~100KiB of unused
> code and data from the mtd-utils programs.
>
> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
> ---
> common.mk | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
Pushed all your patches, thanks for cleaning this stuff up!
--
Best Regards,
Artem Bityutskiy (Артём Битюцкий)
^ permalink raw reply [flat|nested] 2+ messages in thread
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2010-10-01 5:37 [PATCH] mtd-utils: enable garbage collection of unused function/data sections Mike Frysinger
2010-10-01 6:41 ` Artem Bityutskiy
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