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https://github.com/brain-hackers/u-boot-brain
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039b77396a
With some versions of gcc (that we know of 4.6.3 and 4.8.2 are affected) it is necessary to specify --bss-plt to get the final blrl in the _GOT2_TABLE_. Without this the last symbol does not get it's address relocated. For the P2041RDB board this ended up being NetArpWaitTimerStart which caused the ARP packets to timeout immediately. Signed-off-by: Joakim Tjernlund <joakim.tjernlund@transmode.se> Signed-off-by: Chris Packham <judge.packham@gmail.com> Acked-by: Joakim Tjernlund <joakim.tjernlund@transmode.se> Acked-by: Scott Wood <scottwood@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
50 lines
1.3 KiB
Makefile
50 lines
1.3 KiB
Makefile
#
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# (C) Copyright 2000-2010
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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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ifeq ($(CROSS_COMPILE),)
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CROSS_COMPILE := ppc_8xx-
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endif
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CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000
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LDFLAGS_FINAL += --gc-sections
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LDFLAGS_FINAL += --bss-plt
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PLATFORM_RELFLAGS += -fpic -mrelocatable -ffunction-sections -fdata-sections \
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-meabi
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PLATFORM_CPPFLAGS += -D__powerpc__ -ffixed-r2
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PLATFORM_LDFLAGS += -n
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# Support generic board on PPC
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__HAVE_ARCH_GENERIC_BOARD := y
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#
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# When cross-compiling on NetBSD, we have to define __PPC__ or else we
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# will pick up a va_list declaration that is incompatible with the
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# actual argument lists emitted by the compiler.
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#
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# [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3]
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ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
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PLATFORM_CPPFLAGS+= -D__PPC__
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endif
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ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
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PLATFORM_CPPFLAGS+= -D__PPC__
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endif
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# Only test once
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ifneq ($(CONFIG_SPL_BUILD),y)
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archprepare: checkgcc4
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# GCC 3.x is reported to have problems generating the type of relocation
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# that U-Boot wants.
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# See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html
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checkgcc4:
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@if test $(call cc-version) -lt 0400; then \
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echo -n '*** Your GCC is too old, please upgrade to GCC 4.x or newer'; \
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false; \
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fi
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endif
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