u-boot/arch/arm/lib/Makefile

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2002-09-08 19:49:36 +00:00
#
# (C) Copyright 2002-2006
2002-09-08 19:49:36 +00:00
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# SPDX-License-Identifier: GPL-2.0+
2002-09-08 19:49:36 +00:00
#
lib-$(CONFIG_USE_PRIVATE_LIBGCC) += _ashldi3.o _ashrdi3.o _divsi3.o \
_lshrdi3.o _modsi3.o _udivsi3.o _umodsi3.o div0.o \
_uldivmod.o
ifdef CONFIG_CPU_V7M
obj-y += vectors_m.o crt0.o
else ifdef CONFIG_ARM64
obj-y += crt0_64.o
else
obj-y += vectors.o crt0.o
endif
ifndef CONFIG_SPL_BUILD
ifdef CONFIG_ARM64
obj-y += relocate_64.o
else
obj-y += relocate.o
endif
obj-$(CONFIG_CPU_V7M) += cmd_boot.o
obj-$(CONFIG_OF_LIBFDT) += bootm-fdt.o
obj-$(CONFIG_CMD_BOOTM) += bootm.o
obj-$(CONFIG_SYS_L2_PL310) += cache-pl310.o
obj-$(CONFIG_USE_ARCH_MEMSET) += memset.o
obj-$(CONFIG_USE_ARCH_MEMCPY) += memcpy.o
else
obj-$(CONFIG_SPL_FRAMEWORK) += spl.o
endif
obj-$(CONFIG_SEMIHOSTING) += semihosting.o
obj-y += sections.o
obj-y += stack.o
ifdef CONFIG_CPU_V7M
obj-y += interrupts_m.o
else ifdef CONFIG_ARM64
obj-y += ccn504.o
obj-y += gic_64.o
obj-y += interrupts_64.o
else
obj-y += interrupts.o
endif
ifndef CONFIG_RESET
obj-y += reset.o
endif
obj-y += cache.o
ifndef CONFIG_ARM64
obj-y += cache-cp15.o
endif
ARM: compiler options cleanup - improve tool chain support For some time there have been repeated reports about build problems with some ARM (cross) tool chains. Especially issues about (in)compatibility with the tool chain provided runtime support library libgcc.a caused to add and support a private implementation of such runtime support code in U-Boot. A closer look at the code indicated that some of these issues are actually home-made. This patch attempts to clean up some of the most obvious problems and make building of U-Boot with different tool chains easier: - Even though all ARM systems basicy used the same compiler options to select a specific ABI from the tool chain, the code for this was distributed over all cpu/*/config.mk files. We move this one level up into lib_arm/config.mk instead. - So far, we only checked if "-mapcs-32" was supported by the tool chain; if yes, this was used, if not, "-mabi=apcs-gnu" was selected, no matter if the tool chain actually understood this option. There was no support for EABI conformant tool chains. This patch implements the following logic: 1) If the tool chain supports "-mabi=aapcs-linux -mno-thumb-interwork" we use these options (EABI conformant tool chain). 2) Otherwise, we check first if "-mapcs-32" is supported, and then check for "-mabi=apcs-gnu" If one test succeeds, we use the first found option. 3) In case 2), we also test if "-mno-thumb-interwork", and use this if the test succeeds. [For "-mabi=aapcs-linux" we set "-mno-thumb-interwork" mandatorily.] This way we use a similar logic for the compile options as the Linux kernel does. - Some EABI conformant tool chains cause external references to utility functions like raise(); such functions are provided in the new file lib_arm/eabi_compat.c Note that lib_arm/config.mk gets parsed several times, so we must make sure to add eabi_compat.o only once to the linker list. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Dirk Behme <dirk.behme@googlemail.com> Cc: Magnus Lilja <lilja.magnus@gmail.com> Cc: Tom Rix <Tom.Rix@windriver.com> Cc: Prafulla Wadaskar <prafulla@marvell.com> Acked-by: Sergey Kubushyn <ksi@koi8.net> Tested-by: Magnus Lilja <lilja.magnus@gmail.com> Tested-by: Andrzej Wolski <awolski@poczta.fm> Tested-by: Gaye Abdoulaye Walsimou <walsimou@walsimou.com> Tested-by: Tom Rix <Tom.Rix@windriver.com> Tested-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-08-17 11:17:29 +00:00
obj-$(CONFIG_DEBUG_LL) += debug.o
ARM: compiler options cleanup - improve tool chain support For some time there have been repeated reports about build problems with some ARM (cross) tool chains. Especially issues about (in)compatibility with the tool chain provided runtime support library libgcc.a caused to add and support a private implementation of such runtime support code in U-Boot. A closer look at the code indicated that some of these issues are actually home-made. This patch attempts to clean up some of the most obvious problems and make building of U-Boot with different tool chains easier: - Even though all ARM systems basicy used the same compiler options to select a specific ABI from the tool chain, the code for this was distributed over all cpu/*/config.mk files. We move this one level up into lib_arm/config.mk instead. - So far, we only checked if "-mapcs-32" was supported by the tool chain; if yes, this was used, if not, "-mabi=apcs-gnu" was selected, no matter if the tool chain actually understood this option. There was no support for EABI conformant tool chains. This patch implements the following logic: 1) If the tool chain supports "-mabi=aapcs-linux -mno-thumb-interwork" we use these options (EABI conformant tool chain). 2) Otherwise, we check first if "-mapcs-32" is supported, and then check for "-mabi=apcs-gnu" If one test succeeds, we use the first found option. 3) In case 2), we also test if "-mno-thumb-interwork", and use this if the test succeeds. [For "-mabi=aapcs-linux" we set "-mno-thumb-interwork" mandatorily.] This way we use a similar logic for the compile options as the Linux kernel does. - Some EABI conformant tool chains cause external references to utility functions like raise(); such functions are provided in the new file lib_arm/eabi_compat.c Note that lib_arm/config.mk gets parsed several times, so we must make sure to add eabi_compat.o only once to the linker list. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Dirk Behme <dirk.behme@googlemail.com> Cc: Magnus Lilja <lilja.magnus@gmail.com> Cc: Tom Rix <Tom.Rix@windriver.com> Cc: Prafulla Wadaskar <prafulla@marvell.com> Acked-by: Sergey Kubushyn <ksi@koi8.net> Tested-by: Magnus Lilja <lilja.magnus@gmail.com> Tested-by: Andrzej Wolski <awolski@poczta.fm> Tested-by: Gaye Abdoulaye Walsimou <walsimou@walsimou.com> Tested-by: Tom Rix <Tom.Rix@windriver.com> Tested-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-08-17 11:17:29 +00:00
# For EABI conformant tool chains, provide eabi_compat()
ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
extra-y += eabi_compat.o
endif
# some files can only build in ARM or THUMB2, not THUMB1
ifdef CONFIG_SYS_THUMB_BUILD
ifndef CONFIG_HAS_THUMB2
# for C files, just apend -marm, which will override previous -mthumb*
CFLAGS_cache.o := -marm
CFLAGS_cache-cp15.o := -marm
# For .S, drop -mthumb* and other thumb-related options.
# CFLAGS_REMOVE_* would not have an effet, so AFLAGS_REMOVE_*
# was implemented and is used here.
# Also, define ${target}_NO_THUMB_BUILD for these two targets
# so that the code knows it should not use Thumb.
AFLAGS_REMOVE_memset.o := -mthumb -mthumb-interwork
AFLAGS_REMOVE_memcpy.o := -mthumb -mthumb-interwork
AFLAGS_memset.o := -DMEMSET_NO_THUMB_BUILD
AFLAGS_memcpy.o := -DMEMCPY_NO_THUMB_BUILD
endif
endif