forked from Minki/linux
67bb8e999e
Some routines in mem_encrypt.c are called very early in the boot process, e.g. sme_enable(). When CONFIG_KCOV=y is defined the resulting code added to sme_enable() (and others) for KCOV instrumentation results in a kernel crash. Disable the KCOV instrumentation for mem_encrypt.c by adding KCOV_INSTRUMENT_mem_encrypt.o := n to arch/x86/mm/Makefile. In order to avoid other possible early boot issues, model mem_encrypt.c after head64.c in regards to tools. In addition to disabling KCOV as stated above and a previous patch that disables branch profiling, also remove the "-pg" CFLAG if CONFIG_FUNCTION_TRACER is enabled and set KASAN_SANITIZE to "n", each of which are done on a file basis. Reported-by: kernel test robot <lkp@01.org> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Reviewed-by: Borislav Petkov <bp@suse.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20171010194504.18887.38053.stgit@tlendack-t1.amdoffice.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
51 lines
1.5 KiB
Makefile
51 lines
1.5 KiB
Makefile
# Kernel does not boot with instrumentation of tlb.c and mem_encrypt.c
|
|
KCOV_INSTRUMENT_tlb.o := n
|
|
KCOV_INSTRUMENT_mem_encrypt.o := n
|
|
|
|
KASAN_SANITIZE_mem_encrypt.o := n
|
|
|
|
ifdef CONFIG_FUNCTION_TRACER
|
|
CFLAGS_REMOVE_mem_encrypt.o = -pg
|
|
endif
|
|
|
|
obj-y := init.o init_$(BITS).o fault.o ioremap.o extable.o pageattr.o mmap.o \
|
|
pat.o pgtable.o physaddr.o setup_nx.o tlb.o
|
|
|
|
# Make sure __phys_addr has no stackprotector
|
|
nostackp := $(call cc-option, -fno-stack-protector)
|
|
CFLAGS_physaddr.o := $(nostackp)
|
|
CFLAGS_setup_nx.o := $(nostackp)
|
|
|
|
CFLAGS_fault.o := -I$(src)/../include/asm/trace
|
|
|
|
obj-$(CONFIG_X86_PAT) += pat_rbtree.o
|
|
|
|
obj-$(CONFIG_X86_32) += pgtable_32.o iomap_32.o
|
|
|
|
obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
|
|
obj-$(CONFIG_X86_PTDUMP_CORE) += dump_pagetables.o
|
|
obj-$(CONFIG_X86_PTDUMP) += debug_pagetables.o
|
|
|
|
obj-$(CONFIG_HIGHMEM) += highmem_32.o
|
|
|
|
obj-$(CONFIG_KMEMCHECK) += kmemcheck/
|
|
|
|
KASAN_SANITIZE_kasan_init_$(BITS).o := n
|
|
obj-$(CONFIG_KASAN) += kasan_init_$(BITS).o
|
|
|
|
obj-$(CONFIG_MMIOTRACE) += mmiotrace.o
|
|
mmiotrace-y := kmmio.o pf_in.o mmio-mod.o
|
|
obj-$(CONFIG_MMIOTRACE_TEST) += testmmiotrace.o
|
|
|
|
obj-$(CONFIG_NUMA) += numa.o numa_$(BITS).o
|
|
obj-$(CONFIG_AMD_NUMA) += amdtopology.o
|
|
obj-$(CONFIG_ACPI_NUMA) += srat.o
|
|
obj-$(CONFIG_NUMA_EMU) += numa_emulation.o
|
|
|
|
obj-$(CONFIG_X86_INTEL_MPX) += mpx.o
|
|
obj-$(CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS) += pkeys.o
|
|
obj-$(CONFIG_RANDOMIZE_MEMORY) += kaslr.o
|
|
|
|
obj-$(CONFIG_AMD_MEM_ENCRYPT) += mem_encrypt.o
|
|
obj-$(CONFIG_AMD_MEM_ENCRYPT) += mem_encrypt_boot.o
|