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Hans de Goede dfcf7394c8 x86/purgatory: Disable various profiling and sanitizing options 
[ Upstream commit e2ac07c06058ae2d58b45bbf2a2a352771d76fcb ]

Since the purgatory is a special stand-alone binary, various profiling
and sanitizing options must be disabled. Having these options enabled
typically will cause dependencies on various special symbols exported by
special libs / stubs used by these frameworks. Since the purgatory is
special, it is not linked against these stubs causing missing symbols in
the purgatory if these options are not disabled.

Sync the set of disabled profiling and sanitizing options with that from
drivers/firmware/efi/libstub/Makefile, adding
-DDISABLE_BRANCH_PROFILING to the CFLAGS and setting:

  GCOV_PROFILE                    := n
  UBSAN_SANITIZE                  := n

This fixes broken references to ftrace_likely_update() when
CONFIG_TRACE_BRANCH_PROFILING is enabled and to __gcov_init() and
__gcov_exit() when CONFIG_GCOV_KERNEL is enabled.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200317130841.290418-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2021-03-16 16:30:08 +08:00
..
boot x86/boot: Correct relocation destination on old linkers 2021-03-16 16:29:32 +08:00
configs Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
crypto crypto: arch/nhpoly1305 - process in explicit 4k chunks 2021-03-16 16:27:38 +08:00
entry x86/unwind/orc: Fix premature unwind stoppage due to IRET frames 2021-03-16 16:27:42 +08:00
events perf/x86/intel: Add more available bits for OFFCORE_RESPONSE of Intel Tremont 2021-03-16 16:29:00 +08:00
hyperv x86/Hyper-V: Report crash data in die() when panic_on_oops is set 2021-03-16 16:26:30 +08:00
ia32 Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
include x86,smap: Fix smap_{save,restore}() alternatives 2021-03-16 16:29:16 +08:00
kernel x86/amd_nb: Add AMD family 17h model 60h PCI IDs 2021-03-16 16:29:43 +08:00
kvm KVM: nVMX: Consult only the "basic" exit reason when routing nested exit 2021-03-16 16:29:09 +08:00
lib Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
math-emu Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
mm x86/mm: Stop printing BRK addresses 2021-03-16 16:29:34 +08:00
net bpf, x86: Fix encoding for lower 8-bit registers in BPF_STX BPF_B 2021-03-16 16:27:12 +08:00
oprofile Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
pci x86/PCI: Mark Intel C620 MROMs as having non-compliant BARs 2021-03-16 16:28:59 +08:00
platform efi/x86: Fix the deletion of variables in mixed mode 2021-03-16 16:26:20 +08:00
power Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
purgatory x86/purgatory: Disable various profiling and sanitizing options 2021-03-16 16:30:08 +08:00
ras Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
realmode Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
tools Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
um Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
video Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
xen x86: Fix early boot crash on gcc-10, third try 2021-03-16 16:28:02 +08:00
.gitignore Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Kbuild Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Kconfig Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Kconfig.cpu Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Kconfig.debug Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Makefile Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Makefile.um Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Makefile_32.cpu Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00