parisc: add CONFIG_MLONGCALLS option to enable linkage of huge vmlinux executables

[firefly-linux-kernel-4.4.55.git] / arch / parisc / Makefile

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 5707f1a62341d799a75136337ebb13fbfd1cde63..ed9a14ccd066e5550225d1ee3566b3ea669159a2 100644 (file)
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -32,11 +32,6 @@ ifdef CONFIG_64BIT
 UTS_MACHINE    := parisc64
 CHECKFLAGS     += -D__LP64__=1 -m64
 WIDTH          := 64
-
-# FIXME: if no default set, should really try to locate dynamically
-ifeq ($(CROSS_COMPILE),)
-CROSS_COMPILE  := hppa64-linux-gnu-
-endif
 else # 32-bit
 WIDTH          :=
 endif
@@ -44,6 +39,10 @@ endif
 # attempt to help out folks who are cross-compiling
 ifeq ($(NATIVE),1)
 CROSS_COMPILE  := hppa$(WIDTH)-linux-
+else
+ ifeq ($(CROSS_COMPILE),)
+ CROSS_COMPILE := hppa$(WIDTH)-linux-gnu-
+ endif
 endif
 
 OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
@@ -65,6 +64,10 @@ ifndef CONFIG_FUNCTION_TRACER
   cflags-y     += -ffunction-sections
 endif
 
+# Use long jumps instead of long branches (needed if your linker fails to
+# link a too big vmlinux executable)
+cflags-$(CONFIG_MLONGCALLS)    += -mlong-calls
+
 # select which processor to optimise for
 cflags-$(CONFIG_PA7100)                += -march=1.1 -mschedule=7100
 cflags-$(CONFIG_PA7200)                += -march=1.1 -mschedule=7200