Switch from archive libraries to partial linking

Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils.  As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".

This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.

The name of each former library archive is preserved except for
extensions which change from ".a" to ".o".  This commit updates
references accordingly where needed, in particular in some linker
scripts.

This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols.  Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.

Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>

46 files changed, 95 insertions, 95 deletions

diff --git a/arch/arm/cpu/arm1136/Makefile b/arch/arm/cpu/arm1136/Makefile
index 7701b03..930e0d1 100644
--- a/arch/arm/cpu/arm1136/Makefile
+++ b/arch/arm/cpu/arm1136/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(CPU).a
+LIB	= $(obj)lib$(CPU).o
 
 START	= start.o
 COBJS	= cpu.o
@@ -35,7 +35,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(START) $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm1136/mx31/Makefile b/arch/arm/cpu/arm1136/mx31/Makefile
index c8e18f7..eaed371 100644
--- a/arch/arm/cpu/arm1136/mx31/Makefile
+++ b/arch/arm/cpu/arm1136/mx31/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS	+= generic.o
 COBJS	+= timer.o
@@ -35,7 +35,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm1136/omap24xx/Makefile b/arch/arm/cpu/arm1136/omap24xx/Makefile
index 48dc7e3..0776101 100644
--- a/arch/arm/cpu/arm1136/omap24xx/Makefile
+++ b/arch/arm/cpu/arm1136/omap24xx/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 SOBJS	= reset.o
 
@@ -35,7 +35,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm1176/Makefile b/arch/arm/cpu/arm1176/Makefile
index 1ca9199..7ec869b 100644
--- a/arch/arm/cpu/arm1176/Makefile
+++ b/arch/arm/cpu/arm1176/Makefile
@@ -26,7 +26,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(CPU).a
+LIB	= $(obj)lib$(CPU).o
 
 START	= start.o
 COBJS	= cpu.o
@@ -38,7 +38,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(START) $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm1176/s3c64xx/Makefile b/arch/arm/cpu/arm1176/s3c64xx/Makefile
index b527939..0785b19 100644
--- a/arch/arm/cpu/arm1176/s3c64xx/Makefile
+++ b/arch/arm/cpu/arm1176/s3c64xx/Makefile
@@ -26,7 +26,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 SOBJS	= reset.o
 
@@ -38,7 +38,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS-y))
 all:	$(obj).depend $(START) $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm1176/tnetv107x/Makefile b/arch/arm/cpu/arm1176/tnetv107x/Makefile
index fe9d8a0..c63dc92 100644
--- a/arch/arm/cpu/arm1176/tnetv107x/Makefile
+++ b/arch/arm/cpu/arm1176/tnetv107x/Makefile
@@ -19,7 +19,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS	+= aemif.o clock.o init.o mux.o timer.o wdt.o
 SOBJS	+= lowlevel_init.o
@@ -32,7 +32,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm720t/Makefile b/arch/arm/cpu/arm720t/Makefile
index d5ac7d3..1a097b5 100644
--- a/arch/arm/cpu/arm720t/Makefile
+++ b/arch/arm/cpu/arm720t/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(CPU).a
+LIB	= $(obj)lib$(CPU).o
 
 START	= start.o
 COBJS	= interrupts.o cpu.o
@@ -35,7 +35,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(START) $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm720t/lpc2292/Makefile b/arch/arm/cpu/arm720t/lpc2292/Makefile
index 240f1e3..1b93008 100644
--- a/arch/arm/cpu/arm720t/lpc2292/Makefile
+++ b/arch/arm/cpu/arm720t/lpc2292/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS	= flash.o mmc.o mmc_hw.o spi.o
 SOBJS	= $(obj)iap_entry.o
@@ -34,7 +34,7 @@ OBJS	:= $(addprefix $(obj),$(COBJS))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS) $(SOBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
 
 # this MUST be compiled as thumb code!
 $(SOBJS):
diff --git a/arch/arm/cpu/arm720t/s3c4510b/Makefile b/arch/arm/cpu/arm720t/s3c4510b/Makefile
index c099036..5c6df08 100644
--- a/arch/arm/cpu/arm720t/s3c4510b/Makefile
+++ b/arch/arm/cpu/arm720t/s3c4510b/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS-y	+= cache.o
 
@@ -33,7 +33,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS-y))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm920t/Makefile b/arch/arm/cpu/arm920t/Makefile
index cbb13b2..dcc7782 100644
--- a/arch/arm/cpu/arm920t/Makefile
+++ b/arch/arm/cpu/arm920t/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(CPU).a
+LIB	= $(obj)lib$(CPU).o
 
 START	= start.o
 
@@ -37,7 +37,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(START) $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm920t/a320/Makefile b/arch/arm/cpu/arm920t/a320/Makefile
index f030c53..31da706 100644
--- a/arch/arm/cpu/arm920t/a320/Makefile
+++ b/arch/arm/cpu/arm920t/a320/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 SOBJS	+= reset.o
 COBJS	+= timer.o
@@ -35,7 +35,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm920t/at91/Makefile b/arch/arm/cpu/arm920t/at91/Makefile
index d8a4383..5c71b77 100644
--- a/arch/arm/cpu/arm920t/at91/Makefile
+++ b/arch/arm/cpu/arm920t/at91/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 SOBJS	+= lowlevel_init.o
 COBJS	+= reset.o
@@ -35,7 +35,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm920t/at91rm9200/Makefile b/arch/arm/cpu/arm920t/at91rm9200/Makefile
index 114d8ad..7530e6a 100644
--- a/arch/arm/cpu/arm920t/at91rm9200/Makefile
+++ b/arch/arm/cpu/arm920t/at91rm9200/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 SOBJS	+= lowlevel_init.o
 
@@ -44,7 +44,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS) $(COBJS-y))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm920t/ep93xx/Makefile b/arch/arm/cpu/arm920t/ep93xx/Makefile
index 01a2f55..1d6a538 100644
--- a/arch/arm/cpu/arm920t/ep93xx/Makefile
+++ b/arch/arm/cpu/arm920t/ep93xx/Makefile
@@ -32,7 +32,7 @@
 #
 include $(TOPDIR)/config.mk
 
-LIB = $(obj)lib$(SOC).a
+LIB = $(obj)lib$(SOC).o
 
 COBJS   = cpu.o led.o speed.o timer.o
 SOBJS   = lowlevel_init.o
@@ -43,7 +43,7 @@ OBJS    := $(addprefix $(obj),$(SOBJS) $(COBJS))
 all:    $(obj).depend $(LIB)
 
 $(LIB): $(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm920t/imx/Makefile b/arch/arm/cpu/arm920t/imx/Makefile
index 28945e2..32b41b3 100644
--- a/arch/arm/cpu/arm920t/imx/Makefile
+++ b/arch/arm/cpu/arm920t/imx/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS	+= generic.o
 COBJS	+= speed.o
@@ -35,7 +35,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm920t/ks8695/Makefile b/arch/arm/cpu/arm920t/ks8695/Makefile
index f53fdc2..00ce62b 100644
--- a/arch/arm/cpu/arm920t/ks8695/Makefile
+++ b/arch/arm/cpu/arm920t/ks8695/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 SOBJS	= lowlevel_init.o
 
@@ -35,7 +35,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm920t/s3c24x0/Makefile b/arch/arm/cpu/arm920t/s3c24x0/Makefile
index 7e8d6ed..bd53724 100644
--- a/arch/arm/cpu/arm920t/s3c24x0/Makefile
+++ b/arch/arm/cpu/arm920t/s3c24x0/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS-$(CONFIG_USE_IRQ) += interrupts.o
 COBJS-y	+= speed.o
@@ -38,7 +38,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS-y))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm925t/Makefile b/arch/arm/cpu/arm925t/Makefile
index 8d0e88f..29465c2 100644
--- a/arch/arm/cpu/arm925t/Makefile
+++ b/arch/arm/cpu/arm925t/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(CPU).a
+LIB	= $(obj)lib$(CPU).o
 
 START	= start.o
 
@@ -38,7 +38,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(START) $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm926ejs/Makefile b/arch/arm/cpu/arm926ejs/Makefile
index 7701b03..930e0d1 100644
--- a/arch/arm/cpu/arm926ejs/Makefile
+++ b/arch/arm/cpu/arm926ejs/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(CPU).a
+LIB	= $(obj)lib$(CPU).o
 
 START	= start.o
 COBJS	= cpu.o
@@ -35,7 +35,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(START) $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm926ejs/at91/Makefile b/arch/arm/cpu/arm926ejs/at91/Makefile
index def3980..be9f6dd 100644
--- a/arch/arm/cpu/arm926ejs/at91/Makefile
+++ b/arch/arm/cpu/arm926ejs/at91/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS-$(CONFIG_AT91CAP9)	+= at91cap9_devices.o
 COBJS-$(CONFIG_AT91SAM9260)	+= at91sam9260_devices.o
@@ -51,7 +51,7 @@ OBJS    := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm926ejs/davinci/Makefile b/arch/arm/cpu/arm926ejs/davinci/Makefile
index d7e9e2c..4eb1d87 100644
--- a/arch/arm/cpu/arm926ejs/davinci/Makefile
+++ b/arch/arm/cpu/arm926ejs/davinci/Makefile
@@ -25,7 +25,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS-y				+= cpu.o timer.o psc.o
 COBJS-$(CONFIG_SOC_DM355)	+= dm355.o
@@ -47,7 +47,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm926ejs/kirkwood/Makefile b/arch/arm/cpu/arm926ejs/kirkwood/Makefile
index fc2cc03..0754297 100644
--- a/arch/arm/cpu/arm926ejs/kirkwood/Makefile
+++ b/arch/arm/cpu/arm926ejs/kirkwood/Makefile
@@ -24,7 +24,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS-y	= cpu.o
 COBJS-y	+= dram.o
@@ -37,7 +37,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS-y))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm926ejs/mb86r0x/Makefile b/arch/arm/cpu/arm926ejs/mb86r0x/Makefile
index ce3e5a5..bab048b 100644
--- a/arch/arm/cpu/arm926ejs/mb86r0x/Makefile
+++ b/arch/arm/cpu/arm926ejs/mb86r0x/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS	= clock.o reset.o timer.o
 SOBJS	=
@@ -35,7 +35,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm926ejs/mx25/Makefile b/arch/arm/cpu/arm926ejs/mx25/Makefile
index 76f0179..38d7f03 100644
--- a/arch/arm/cpu/arm926ejs/mx25/Makefile
+++ b/arch/arm/cpu/arm926ejs/mx25/Makefile
@@ -22,7 +22,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS	= generic.o timer.o
 MX27OBJS = reset.o
@@ -34,7 +34,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS) $(MX27OBJS))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm926ejs/mx27/Makefile b/arch/arm/cpu/arm926ejs/mx27/Makefile
index 67d1b0e..0e112b3 100644
--- a/arch/arm/cpu/arm926ejs/mx27/Makefile
+++ b/arch/arm/cpu/arm926ejs/mx27/Makefile
@@ -22,7 +22,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS	= generic.o reset.o timer.o
 
@@ -32,7 +32,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm926ejs/nomadik/Makefile b/arch/arm/cpu/arm926ejs/nomadik/Makefile
index 0fc9f2a..1c1f58e 100644
--- a/arch/arm/cpu/arm926ejs/nomadik/Makefile
+++ b/arch/arm/cpu/arm926ejs/nomadik/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS	= timer.o gpio.o
 SOBJS	= reset.o
@@ -34,7 +34,7 @@ OBJS	:= $(addprefix $(obj),$(COBJS)) $(addprefix $(obj),$(SOBJS))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm926ejs/omap/Makefile b/arch/arm/cpu/arm926ejs/omap/Makefile
index 74aea74..862ca02 100644
--- a/arch/arm/cpu/arm926ejs/omap/Makefile
+++ b/arch/arm/cpu/arm926ejs/omap/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS	= timer.o cpuinfo.o
 SOBJS	= reset.o
@@ -35,7 +35,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm926ejs/orion5x/Makefile b/arch/arm/cpu/arm926ejs/orion5x/Makefile
index 11f4141..e5a9994 100644
--- a/arch/arm/cpu/arm926ejs/orion5x/Makefile
+++ b/arch/arm/cpu/arm926ejs/orion5x/Makefile
@@ -27,7 +27,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS-y	= cpu.o
 COBJS-y	+= dram.o
@@ -43,7 +43,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS-y))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm926ejs/spear/Makefile b/arch/arm/cpu/arm926ejs/spear/Makefile
index bf8dfa8..1cbff43 100644
--- a/arch/arm/cpu/arm926ejs/spear/Makefile
+++ b/arch/arm/cpu/arm926ejs/spear/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS	:= reset.o \
 	   timer.o
@@ -34,7 +34,7 @@ OBJS	:= $(addprefix $(obj),$(COBJS))
 SOBJS	:= $(addprefix $(obj),$(SOBJS))
 
 $(LIB):	$(obj).depend $(OBJS) $(SOBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
 
 clean:
 	rm -f $(SOBJS) $(OBJS)
diff --git a/arch/arm/cpu/arm926ejs/versatile/Makefile b/arch/arm/cpu/arm926ejs/versatile/Makefile
index c335d5c..64e6aae 100644
--- a/arch/arm/cpu/arm926ejs/versatile/Makefile
+++ b/arch/arm/cpu/arm926ejs/versatile/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS	= timer.o
 SOBJS	= reset.o
@@ -35,7 +35,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm946es/Makefile b/arch/arm/cpu/arm946es/Makefile
index e81f2da..d4747f3 100644
--- a/arch/arm/cpu/arm946es/Makefile
+++ b/arch/arm/cpu/arm946es/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(CPU).a
+LIB	= $(obj)lib$(CPU).o
 
 START	= start.o
 
@@ -36,7 +36,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(START) $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/arm_intcm/Makefile b/arch/arm/cpu/arm_intcm/Makefile
index 7701b03..930e0d1 100644
--- a/arch/arm/cpu/arm_intcm/Makefile
+++ b/arch/arm/cpu/arm_intcm/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(CPU).a
+LIB	= $(obj)lib$(CPU).o
 
 START	= start.o
 COBJS	= cpu.o
@@ -35,7 +35,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(START) $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/armv7/Makefile b/arch/arm/cpu/armv7/Makefile
index 7743fef..8c0e915 100644
--- a/arch/arm/cpu/armv7/Makefile
+++ b/arch/arm/cpu/armv7/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(CPU).a
+LIB	= $(obj)lib$(CPU).o
 
 START	:= start.o
 COBJS	:= cpu.o
@@ -36,7 +36,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(START) $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/armv7/mx5/Makefile b/arch/arm/cpu/armv7/mx5/Makefile
index 7cfaa2c..e8be9c9 100644
--- a/arch/arm/cpu/armv7/mx5/Makefile
+++ b/arch/arm/cpu/armv7/mx5/Makefile
@@ -25,7 +25,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 COBJS	= soc.o clock.o iomux.o timer.o speed.o
 SOBJS = lowlevel_init.o
@@ -36,7 +36,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/armv7/omap-common/Makefile b/arch/arm/cpu/armv7/omap-common/Makefile
index aedea7b..dc01ee5 100644
--- a/arch/arm/cpu/armv7/omap-common/Makefile
+++ b/arch/arm/cpu/armv7/omap-common/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)libomap-common.a
+LIB	= $(obj)libomap-common.o
 
 SOBJS	:= reset.o
 
@@ -35,7 +35,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
 all:	$(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/armv7/omap3/Makefile b/arch/arm/cpu/armv7/omap3/Makefile
index 95526d6..7164d50 100644
--- a/arch/arm/cpu/armv7/omap3/Makefile
+++ b/arch/arm/cpu/armv7/omap3/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	=  $(obj)lib$(SOC).a
+LIB	=  $(obj)lib$(SOC).o
 
 SOBJS	:= lowlevel_init.o
 SOBJS	+= cache.o
@@ -43,7 +43,7 @@ OBJS	:= $(addprefix $(obj),$(COBJS) $(COBJS-y) $(SOBJS))
 all:	 $(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/armv7/omap4/Makefile b/arch/arm/cpu/armv7/omap4/Makefile
index d926fbb..987dc9d 100644
--- a/arch/arm/cpu/armv7/omap4/Makefile
+++ b/arch/arm/cpu/armv7/omap4/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	=  $(obj)lib$(SOC).a
+LIB	=  $(obj)lib$(SOC).o
 
 SOBJS	+= lowlevel_init.o
 
@@ -37,7 +37,7 @@ OBJS	:= $(addprefix $(obj),$(COBJS) $(SOBJS))
 all:	 $(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/armv7/s5p-common/Makefile b/arch/arm/cpu/armv7/s5p-common/Makefile
index 37371f6..922cd95 100644
--- a/arch/arm/cpu/armv7/s5p-common/Makefile
+++ b/arch/arm/cpu/armv7/s5p-common/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)libs5p-common.a
+LIB	= $(obj)libs5p-common.o
 
 COBJS-y		+= cpu_info.o
 COBJS-y		+= timer.o
@@ -34,7 +34,7 @@ OBJS	:= $(addprefix $(obj),$(COBJS-y) $(SOBJS))
 all:	 $(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/armv7/s5pc1xx/Makefile b/arch/arm/cpu/armv7/s5pc1xx/Makefile
index 263945f..b182bf5 100644
--- a/arch/arm/cpu/armv7/s5pc1xx/Makefile
+++ b/arch/arm/cpu/armv7/s5pc1xx/Makefile
@@ -26,7 +26,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(SOC).a
+LIB	= $(obj)lib$(SOC).o
 
 SOBJS	= cache.o
 SOBJS	+= reset.o
@@ -40,7 +40,7 @@ OBJS	:= $(addprefix $(obj),$(COBJS) $(SOBJS))
 all:	 $(obj).depend $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/ixp/Makefile b/arch/arm/cpu/ixp/Makefile
index 1403c4f..b0a466e 100644
--- a/arch/arm/cpu/ixp/Makefile
+++ b/arch/arm/cpu/ixp/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(CPU).a
+LIB	= $(obj)lib$(CPU).o
 
 START	= start.o
 
@@ -38,7 +38,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(START) $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/ixp/npe/Makefile b/arch/arm/cpu/ixp/npe/Makefile
index e1f9700..c756a1d 100644
--- a/arch/arm/cpu/ixp/npe/Makefile
+++ b/arch/arm/cpu/ixp/npe/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB := $(obj)libnpe.a
+LIB := $(obj)libnpe.o
 
 LOCAL_CFLAGS  += -I$(TOPDIR)/arch/arm/cpu/ixp/npe/include -DCONFIG_IXP425_COMPONENT_ETHDB -D__linux
 CFLAGS  += $(LOCAL_CFLAGS)
@@ -86,7 +86,7 @@ SOBJS	:= $(addprefix $(obj),$(SOBJS))
 all:	$(LIB)
 
 $(LIB):	$(obj).depend $(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/lh7a40x/Makefile b/arch/arm/cpu/lh7a40x/Makefile
index 1b3f58a..01cf7f5 100644
--- a/arch/arm/cpu/lh7a40x/Makefile
+++ b/arch/arm/cpu/lh7a40x/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(CPU).a
+LIB	= $(obj)lib$(CPU).o
 
 START	= start.o
 COBJS	= cpu.o speed.o timer.o
@@ -35,7 +35,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(START) $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/pxa/Makefile b/arch/arm/cpu/pxa/Makefile
index 07a151a..49a6ed3 100644
--- a/arch/arm/cpu/pxa/Makefile
+++ b/arch/arm/cpu/pxa/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(CPU).a
+LIB	= $(obj)lib$(CPU).o
 
 START	= start.o
 
@@ -40,7 +40,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(START) $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/s3c44b0/Makefile b/arch/arm/cpu/s3c44b0/Makefile
index 6da2016..7742dc2 100644
--- a/arch/arm/cpu/s3c44b0/Makefile
+++ b/arch/arm/cpu/s3c44b0/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(CPU).a
+LIB	= $(obj)lib$(CPU).o
 
 START	= start.o
 
@@ -38,7 +38,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(START) $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/cpu/sa1100/Makefile b/arch/arm/cpu/sa1100/Makefile
index 28b6682..1021c99 100644
--- a/arch/arm/cpu/sa1100/Makefile
+++ b/arch/arm/cpu/sa1100/Makefile
@@ -23,7 +23,7 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(CPU).a
+LIB	= $(obj)lib$(CPU).o
 
 START	= start.o
 
@@ -37,7 +37,7 @@ START	:= $(addprefix $(obj),$(START))
 all:	$(obj).depend $(START) $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 #########################################################################
 
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index 0293348..454440c 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -23,8 +23,8 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(ARCH).a
-LIBGCC	= $(obj)libgcc.a
+LIB	= $(obj)lib$(ARCH).o
+LIBGCC	= $(obj)libgcc.o
 
 GLSOBJS	+= _ashldi3.o
 GLSOBJS	+= _ashrdi3.o
@@ -51,7 +51,7 @@ OBJS	:= $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
 LGOBJS	:= $(addprefix $(obj),$(GLSOBJS)) \
 	   $(addprefix $(obj),$(GLCOBJS))
 
-# Always build libarm.a
+# Always build libarm.o
 TARGETS	:= $(LIB)
 
 # Build private libgcc only when asked for
@@ -67,10 +67,10 @@ endif
 all:	$(TARGETS)
 
 $(LIB):	$(obj).depend $(OBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
 
 $(LIBGCC): $(obj).depend $(LGOBJS)
-	$(AR) $(ARFLAGS) $@ $(LGOBJS)
+	$(call cmd_link_o_target, $(LGOBJS))
 
 #########################################################################