Commit 3570732c authored by Max Filippov's avatar Max Filippov Committed by Thomas Petazzoni
Browse files

xtensa: switch from text-section-literals to auto-litpools 

Now that both binutils and gcc support auto-litpools use that option
instead of text-section-literals to be able to compile huge functions.

Fixes:
  http://autobuild.buildroot.net/results/dd384fe0ef02a4205bea66a4a16ca2062afe53b4/
  http://autobuild.buildroot.net/results/87dd357a4b883ea3cd75546b3d63c4c28245beee/
  http://autobuild.buildroot.net/results/b5bca00dec1ecb118c7fb9c10dee74c94809c831/


and many others.

Signed-off-by: default avatarMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
parent 5b84265f

package/Makefile.in

+2 −2
Original line number Diff line number Diff line
@@ -91,7 +91,7 @@ endif 
# code size and performance, the linker can usually optimize away the

# overhead when a call ends up within a certain range.

#

# Use text-section-literals for Xtensa globally.

# Use auto-litpools for Xtensa globally.

# Collecting literals into separate section can be advantageous if that

# section is placed into DTCM at link time. This is applicable for code

# running on bare metal, but makes no sense under linux, where userspace
@@ -100,7 +100,7 @@ endif 
# instruction can only access literals in 256 KBytes range.

#

ifeq ($(BR2_xtensa),y)

TARGET_ABI += -mlongcalls -mtext-section-literals

TARGET_ABI += -mlongcalls -mauto-litpools

endif



ifeq ($(BR2_arc)$(BR2_ARC_ATOMIC_EXT),yy)

package/gcc/gcc.mk

+3 −3
Original line number Diff line number Diff line
@@ -113,11 +113,11 @@ GCC_COMMON_TARGET_CXXFLAGS = $(filter-out -Os,$(GCC_COMMON_TARGET_CXXFLAGS)) 
endif

endif



# Xtensa libgcc can't be built with -mtext-section-literals

# Xtensa libgcc can't be built with -mauto-litpools

# because of the trick used to generate .init/.fini sections.

ifeq ($(BR2_xtensa),y)

GCC_COMMON_TARGET_CFLAGS = $(filter-out -mtext-section-literals,$(TARGET_CFLAGS))

GCC_COMMON_TARGET_CXXFLAGS = $(filter-out -mtext-section-literals,$(TARGET_CXXFLAGS))

GCC_COMMON_TARGET_CFLAGS = $(filter-out -mauto-litpools,$(TARGET_CFLAGS))

GCC_COMMON_TARGET_CXXFLAGS = $(filter-out -mauto-litpools,$(TARGET_CXXFLAGS))

endif



# Propagate options used for target software building to GCC target libs