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![Philipp Tomsich](/assets/img/avatar_default.png)
The previous setjmp-implementation (as a static inline function that contained an 'asm volatile' sequence) was extremely fragile: (some versions of) GCC optimised the set of registers. One critical example was the removal of 'r9' from the clobber list, if -ffixed-reg9 was supplied. To increase robustness and ensure PCS-compliant behaviour, the setjmp and longjmp implementation are now in assembly and closely match what one would expect to find in a libc implementation. Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Tested-by: Andy Yan <andy.yan@rock-chips.com>
116 lines
2.7 KiB
Makefile
116 lines
2.7 KiB
Makefile
#
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# (C) Copyright 2002-2006
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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lib-$(CONFIG_USE_PRIVATE_LIBGCC) += ashldi3.o ashrdi3.o lshrdi3.o \
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lib1funcs.o uldivmod.o div0.o \
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div64.o muldi3.o
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ifdef CONFIG_CPU_V7M
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obj-y += vectors_m.o crt0.o
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else ifdef CONFIG_ARM64
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obj-y += crt0_64.o
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else
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obj-y += vectors.o crt0.o
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endif
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ifdef CONFIG_ARM64
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obj-y += setjmp_aarch64.o
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else
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obj-y += setjmp.o
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endif
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ifndef CONFIG_SPL_BUILD
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ifdef CONFIG_ARM64
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obj-y += relocate_64.o
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else
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obj-y += relocate.o
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endif
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obj-$(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
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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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obj-$(CONFIG_SYS_L2_PL310) += cache-pl310.o
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else
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obj-$(CONFIG_SPL_FRAMEWORK) += spl.o
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obj-$(CONFIG_SPL_FRAMEWORK) += zimage.o
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obj-$(CONFIG_OF_LIBFDT) += bootm-fdt.o
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endif
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obj-$(CONFIG_$(SPL_)USE_ARCH_MEMSET) += memset.o
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obj-$(CONFIG_$(SPL_)USE_ARCH_MEMCPY) += memcpy.o
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obj-$(CONFIG_SEMIHOSTING) += semihosting.o
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obj-y += sections.o
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obj-y += stack.o
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ifdef CONFIG_CPU_V7M
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obj-y += interrupts_m.o
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else ifdef CONFIG_ARM64
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obj-$(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-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_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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ifndef CONFIG_ARM64
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ifndef CONFIG_CPU_V7M
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obj-y += cache-cp15.o
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endif
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endif
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obj-y += psci-dt.o
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obj-$(CONFIG_DEBUG_LL) += debug.o
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# For EABI conformant tool chains, provide eabi_compat()
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ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
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extra-y += eabi_compat.o
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endif
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# some files can only build in ARM or THUMB2, not THUMB1
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ifdef CONFIG_$(SPL_)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 ${target}_NO_THUMB_BUILD for these two targets
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# so that the code knows it should not use Thumb.
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AFLAGS_REMOVE_memset.o := -mthumb -mthumb-interwork
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AFLAGS_REMOVE_memcpy.o := -mthumb -mthumb-interwork
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AFLAGS_memset.o := -DMEMSET_NO_THUMB_BUILD
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AFLAGS_memcpy.o := -DMEMCPY_NO_THUMB_BUILD
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endif
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endif
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# For building EFI apps
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CFLAGS_$(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) := $(CFLAGS_NON_EFI)
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extra-$(CONFIG_CMD_BOOTEFI_HELLO_COMPILE) += $(EFI_CRT0) $(EFI_RELOC)
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extra-$(CONFIG_EFI) += $(EFI_CRT0) $(EFI_RELOC)
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