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2e903b9147
Provide implementation of KASAN functions required for the hardware tag-based mode. Those include core functions for memory and pointer tagging (tags_hw.c) and bug reporting (report_tags_hw.c). Also adapt common KASAN code to support the new mode. Link: https://lkml.kernel.org/r/cfd0fbede579a6b66755c98c88c108e54f9c56bf.1606161801.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Alexander Potapenko <glider@google.com> Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Branislav Rankov <Branislav.Rankov@arm.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Evgenii Stepanov <eugenis@google.com> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Cc: Marco Elver <elver@google.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
41 lines
1.7 KiB
Makefile
41 lines
1.7 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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KASAN_SANITIZE := n
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UBSAN_SANITIZE := n
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KCOV_INSTRUMENT := n
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# Disable ftrace to avoid recursion.
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CFLAGS_REMOVE_common.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_generic.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_init.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_quarantine.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_report.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_report_generic.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_report_hw_tags.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_report_sw_tags.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_shadow.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_hw_tags.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_sw_tags.o = $(CC_FLAGS_FTRACE)
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# Function splitter causes unnecessary splits in __asan_load1/__asan_store1
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# see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63533
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CC_FLAGS_KASAN_RUNTIME := $(call cc-option, -fno-conserve-stack)
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CC_FLAGS_KASAN_RUNTIME += -fno-stack-protector
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# Disable branch tracing to avoid recursion.
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CC_FLAGS_KASAN_RUNTIME += -DDISABLE_BRANCH_PROFILING
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CFLAGS_common.o := $(CC_FLAGS_KASAN_RUNTIME)
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CFLAGS_generic.o := $(CC_FLAGS_KASAN_RUNTIME)
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CFLAGS_init.o := $(CC_FLAGS_KASAN_RUNTIME)
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CFLAGS_quarantine.o := $(CC_FLAGS_KASAN_RUNTIME)
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CFLAGS_report.o := $(CC_FLAGS_KASAN_RUNTIME)
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CFLAGS_report_generic.o := $(CC_FLAGS_KASAN_RUNTIME)
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CFLAGS_report_hw_tags.o := $(CC_FLAGS_KASAN_RUNTIME)
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CFLAGS_report_sw_tags.o := $(CC_FLAGS_KASAN_RUNTIME)
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CFLAGS_shadow.o := $(CC_FLAGS_KASAN_RUNTIME)
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CFLAGS_hw_tags.o := $(CC_FLAGS_KASAN_RUNTIME)
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CFLAGS_sw_tags.o := $(CC_FLAGS_KASAN_RUNTIME)
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obj-$(CONFIG_KASAN) := common.o report.o
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obj-$(CONFIG_KASAN_GENERIC) += init.o generic.o report_generic.o shadow.o quarantine.o
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obj-$(CONFIG_KASAN_HW_TAGS) += hw_tags.o report_hw_tags.o
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obj-$(CONFIG_KASAN_SW_TAGS) += init.o report_sw_tags.o shadow.o sw_tags.o
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