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https://github.com/cirosantilli/linux-kernel-module-cheat.git
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af210a7671
gem5 requires armv7, and we learnt that the versatiledb we were using was pre-v7. We could have moved to -M vexpress-*, but in the end decided to go for -M virt due to its simpliciy, and uniformity with aarch64. platform_device: does not work anymore and was removed, since it was tied to versatilepb. We left a mention on the README and removed all in tree source. The QEMU patch is still left as it was. As a consequence, the linux tree had no other patches, and we now use vanilla linux by default, which is a great thing for reproducibility. Another consequence is the /poweroff.out works for arm -M virt, and we removed all mentions of the problem.
30 lines
912 B
Makefile
30 lines
912 B
Makefile
################################################################################
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#
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# GEM5
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#
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################################################################################
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GEM5_VERSION = 1.0
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GEM5_SITE = $(BR2_EXTERNAL_GEM5_PATH)
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GEM5_SITE_METHOD = local
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ifeq ($(ARCH),x86_64)
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ARCH_MAKE = x86
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else
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ARCH_MAKE = $(ARCH)
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endif
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define GEM5_BUILD_CMDS
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# Cannot pass "-c '$(TARGET_CROSS)'" here because the ARM build uses aarch64 for the bootloader...
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cd '$(@D)' && ./build -a '$(ARCH)' -j '$(BR2_JLEVEL)'
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# TODO cannot use TARGET_CONFIGURE_OPTS here because it overrides the CFLAGS on m5,
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# which have an include. We should patch gem5 to add a += instead of = there.
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cd '$(@D)/gem5/util/m5' && $(MAKE) -f 'Makefile.$(ARCH_MAKE)' CC='$(TARGET_CC)' LD='$(TARGET_LD)'
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endef
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define GEM5_INSTALL_TARGET_CMDS
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$(INSTALL) -D -m 0755 '$(@D)/gem5/util/m5/m5' '$(TARGET_DIR)/usr/bin'
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endef
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$(eval $(generic-package))
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