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Simon Glass <sjg@chromium.org> says: When the SPL build-phase was first created it was designed to solve a particular problem (the need to init SDRAM so that U-Boot proper could be loaded). It has since expanded to become an important part of U-Boot, with three phases now present: TPL, VPL and SPL Due to this history, the term 'SPL' is used to mean both a particular phase (the one before U-Boot proper) and all the non-proper phases. This has become confusing. For a similar reason CONFIG_SPL_BUILD is set to 'y' for all 'SPL' phases, not just SPL. So code which can only be compiled for actual SPL, for example, must use something like this: #if defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD) In Makefiles we have similar issues. SPL_ has been used as a variable which expands to either SPL_ or nothing, to chose between options like CONFIG_BLK and CONFIG_SPL_BLK. When TPL appeared, a new SPL_TPL variable was created which expanded to 'SPL_', 'TPL_' or nothing. Later it was updated to support 'VPL_' as well. This series starts a change in terminology and usage to resolve the above issues: - The word 'xPL' is used instead of 'SPL' to mean a non-proper build - A new CONFIG_XPL_BUILD define indicates that the current build is an 'xPL' build - The existing CONFIG_SPL_BUILD is changed to mean SPL; it is not now defined for TPL and VPL phases - The existing SPL_ Makefile variable is renamed to SPL_ - The existing SPL_TPL Makefile variable is renamed to PHASE_ It should be noted that xpl_phase() can generally be used instead of the above CONFIGs without a code-space or run-time penalty. This series does not attempt to convert all of U-Boot to use this new terminology but it makes a start. In particular, renaming spl.h and common/spl seems like a bridge too far at this point. The series is fully bisectable. It has also been checked to ensure there are no code-size changes on any commit.
131 lines
3.3 KiB
Makefile
131 lines
3.3 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0+
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#
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# (C) Copyright 2002-2006
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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lib-$(CONFIG_USE_PRIVATE_LIBGCC) += ashldi3.o ashrdi3.o lshrdi3.o \
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lib1funcs.o uldivmod.o div0.o \
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div64.o muldi3.o
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ifdef CONFIG_CPU_V7M
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obj-y += vectors_m.o crt0.o
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else ifdef CONFIG_ARM64
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obj-y += crt0_64.o
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else
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obj-y += vectors.o crt0.o
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endif
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ifdef CONFIG_ARM64
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obj-y += setjmp_aarch64.o
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else
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obj-y += setjmp.o
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endif
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ifndef CONFIG_XPL_BUILD
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ifdef CONFIG_ARM64
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obj-y += relocate_64.o
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else
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obj-y += relocate.o
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endif
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obj-$(CONFIG_CPU_V7M) += cmd_boot.o
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obj-$(CONFIG_OF_LIBFDT) += bootm-fdt.o
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obj-$(CONFIG_CMD_BOOTI) += bootm.o image.o
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obj-$(CONFIG_CMD_BOOTM) += bootm.o
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obj-$(CONFIG_CMD_BOOTZ) += bootm.o zimage.o
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else
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obj-$(CONFIG_$(PHASE_)FRAMEWORK) += spl.o
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ifdef CONFIG_SPL_FRAMEWORK
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obj-$(CONFIG_CMD_BOOTI) += image.o
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obj-$(CONFIG_CMD_BOOTZ) += zimage.o
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endif
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obj-$(CONFIG_OF_LIBFDT) += bootm-fdt.o
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endif
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ifdef CONFIG_ARM64
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obj-$(CONFIG_$(PHASE_)USE_ARCH_MEMSET) += memset-arm64.o
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obj-$(CONFIG_$(PHASE_)USE_ARCH_MEMCPY) += memcpy-arm64.o
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else
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obj-$(CONFIG_$(PHASE_)USE_ARCH_MEMSET) += memset.o
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obj-$(CONFIG_$(PHASE_)USE_ARCH_MEMCPY) += memcpy.o
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endif
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obj-$(CONFIG_$(PHASE_)SYS_L2_PL310) += cache-pl310.o
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obj-$(CONFIG_$(PHASE_)SEMIHOSTING) += semihosting.o
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ifneq ($(filter y,$(CONFIG_SAVE_PREV_BL_INITRAMFS_START_ADDR) $(CONFIG_SAVE_PREV_BL_FDT_ADDR)),)
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obj-y += save_prev_bl_data.o
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endif
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# obj-$(CONFIG_SAVE_PREV_BL_INITRAMFS_START_ADDR) += save_prev_bl_data.o
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obj-y += bdinfo.o
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obj-y += sections.o
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CFLAGS_REMOVE_sections.o := $(LTO_CFLAGS)
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obj-y += stack.o
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ifdef CONFIG_CPU_V7M
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obj-y += interrupts_m.o
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else ifdef CONFIG_ARM64
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obj-$(CONFIG_FSL_LAYERSCAPE) += ccn504.o
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ifneq ($(CONFIG_GICV2)$(CONFIG_GICV3),)
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obj-y += gic_64.o
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endif
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obj-$(CONFIG_GIC_V3_ITS) += gic-v3-its.o
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obj-y += interrupts_64.o
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else
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obj-y += interrupts.o
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endif
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ifndef CONFIG_$(PHASE_)SYSRESET
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obj-y += reset.o
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endif
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obj-y += cache.o
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obj-$(CONFIG_SYS_ARM_CACHE_CP15) += cache-cp15.o
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CFLAGS_REMOVE_cache-cp15.o := $(LTO_CFLAGS)
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obj-y += psci-dt.o
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obj-$(CONFIG_DEBUG_LL) += debug.o
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obj-$(CONFIG_BLOBLIST) += xferlist.o
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# For EABI conformant tool chains, provide eabi_compat()
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ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
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extra-y += eabi_compat.o
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endif
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# some files can only build in ARM or THUMB2, not THUMB1
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ifdef CONFIG_$(XPL_)SYS_THUMB_BUILD
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asflags-$(CONFIG_HAS_THUMB2) += -DCONFIG_THUMB2_KERNEL
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ifndef CONFIG_HAS_THUMB2
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# for C files, just apend -marm, which will override previous -mthumb*
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ifndef CONFIG_ARM64
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CFLAGS_cache.o := -marm
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CFLAGS_cache-cp15.o := -marm
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endif
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# For .S, drop -mthumb* and other thumb-related options.
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# CFLAGS_REMOVE_* would not have an effet, so AFLAGS_REMOVE_*
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# was implemented and is used here.
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# Also, define ${target}_NO_THUMB_BUILD for these two targets
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# so that the code knows it should not use Thumb.
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AFLAGS_REMOVE_memset.o := -mthumb -mthumb-interwork
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AFLAGS_REMOVE_memcpy.o := -mthumb -mthumb-interwork
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AFLAGS_memset.o := -DMEMSET_NO_THUMB_BUILD
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AFLAGS_memcpy.o := -DMEMCPY_NO_THUMB_BUILD
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# This is only necessary to force ARM mode on THUMB1 targets.
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ifneq ($(CONFIG_SYS_ARM_ARCH),4)
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obj-y += bitops.o
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endif
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endif
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endif
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# For building EFI apps
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CFLAGS_$(EFI_CRT0) := $(CFLAGS_EFI)
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CFLAGS_REMOVE_$(EFI_CRT0) := $(CFLAGS_NON_EFI)
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CFLAGS_$(EFI_RELOC) := $(CFLAGS_EFI)
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CFLAGS_REMOVE_$(EFI_RELOC) := $(CFLAGS_NON_EFI)
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