[patches.git] / bfin-gc-sections.patch

--- arch/blackfin/Kconfig
+++ arch/blackfin/Kconfig
@@ -398,6 +398,14 @@ config I_ENTRY_L1
 	  If enabled interrupt entry code (STORE/RESTORE CONTEXT) is linked
 	  into L1 instruction memory.(less latency)
 
+config GC_SECTIONS
+	bool "Garbage collect unused functions and data"
+	default n
+	help
+	  Tell the compiler to place all functions and variables in their own
+	  sections and then tell the linker to discard any section that aren't
+	  referred to.
+
 endmenu
 
 
--- arch/blackfin/Makefile
+++ arch/blackfin/Makefile
@@ -18,6 +18,12 @@ CFLAGS_MODULE    += -mlong-calls
 KALLSYMS         += --symbol-prefix=_
 
 
+ifdef CONFIG_GC_SECTIONS
+CFLAGS		+= -ffunction-sections -fdata-sections
+LINKFLAGS	+= --gc-sections
+endif
+
+
 # setup the machine name and the machine dependent settings
 machine-$(CONFIG_BF531) := bf533
 machine-$(CONFIG_BF532) := bf533
Commit	Line	Data
	1	--- arch/blackfin/Kconfig
	2	+++ arch/blackfin/Kconfig
	3	@@ -398,6 +398,14 @@ config I_ENTRY_L1
	4	If enabled interrupt entry code (STORE/RESTORE CONTEXT) is linked
	5	into L1 instruction memory.(less latency)
	6
	7	+config GC_SECTIONS
	8	+ bool "Garbage collect unused functions and data"
	9	+ default n
	10	+ help
	11	+ Tell the compiler to place all functions and variables in their own
	12	+ sections and then tell the linker to discard any section that aren't
	13	+ referred to.
	14	+
	15	endmenu
	16
	17
	18	--- arch/blackfin/Makefile
	19	+++ arch/blackfin/Makefile
	20	@@ -18,6 +18,12 @@ CFLAGS_MODULE += -mlong-calls
	21	KALLSYMS += --symbol-prefix=_
	22
	23
	24	+ifdef CONFIG_GC_SECTIONS
	25	+CFLAGS += -ffunction-sections -fdata-sections
	26	+LINKFLAGS += --gc-sections
	27	+endif
	28	+
	29	+
	30	# setup the machine name and the machine dependent settings
	31	machine-$(CONFIG_BF531) := bf533
	32	machine-$(CONFIG_BF532) := bf533