@@ -35,3 +35,20 @@ config BR2_XTENSA_OVERLAY_DIR
config BR2_ARCH
default "xtensa" if BR2_xtensa
+
+menu "Target build options"
+
+config BR2_XTENSA_LONGCALLS
+ bool "Enable longcalls option"
+ default y
+ help
+ Enable or disable transformation of call instructions to allow
+ calls across a greater range of addresses.
+ This option should be used when call targets can potentially be
+ out of range. It may degrade both code size and performance, but
+ the linker can generally optimize away the unnecessary overhead
+ when a call ends up within range.
+
+ Should be enabled by default.
+
+endmenu
@@ -56,6 +56,12 @@ TARGET_ABI+=-mabi=spe -mfloat-gprs=double -Wa,-me500mc
endif
endif
+# Xtensa: The 'longcalls' option is required for large binary packages.
+# Use a global option for all packages for now.
+ifeq ($(BR2_XTENSA_LONGCALLS),y)
+TARGET_CPPFLAGS += -mlongcalls
+endif
+
STAGING_DIR=$(HOST_DIR)/usr/$(GNU_TARGET_NAME)/sysroot
TARGET_OPTIMIZATION:=$(call qstrip,$(BR2_TARGET_OPTIMIZATION))
The longcalls option allows calls across a greater range of addresses. This option should be used when call targets can potentially be out of range. It may degrade both code size and performance, but the linker can generally optimize away the unnecessary overhead when a call ends up within range. This option is enabled by default. Signed-off-by: Chris Zankel <chris@zankel.net> --- arch/Config.in.xtensa | 17 +++++++++++++++++ package/Makefile.in | 6 ++++++ 2 files changed, 23 insertions(+)