Nathan Chancellor f24e9121ea vmlinux.lds.h: Define SANTIZER_DISCARDS with CONFIG_GCOV_KERNEL=y ... commit f5b6a74d9c08b19740ca056876bf6584acdba582 upstream. clang produces .eh_frame sections when CONFIG_GCOV_KERNEL is enabled, even when -fno-asynchronous-unwind-tables is in KBUILD_CFLAGS: $ make CC=clang vmlinux ... ld: warning: orphan section `.eh_frame' from `init/main.o' being placed in section `.eh_frame' ld: warning: orphan section `.eh_frame' from `init/version.o' being placed in section `.eh_frame' ld: warning: orphan section `.eh_frame' from `init/do_mounts.o' being placed in section `.eh_frame' ld: warning: orphan section `.eh_frame' from `init/do_mounts_initrd.o' being placed in section `.eh_frame' ld: warning: orphan section `.eh_frame' from `init/initramfs.o' being placed in section `.eh_frame' ld: warning: orphan section `.eh_frame' from `init/calibrate.o' being placed in section `.eh_frame' ld: warning: orphan section `.eh_frame' from `init/init_task.o' being placed in section `.eh_frame' ... $ rg "GCOV_KERNEL|GCOV_PROFILE_ALL" .config CONFIG_GCOV_KERNEL=y CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y CONFIG_GCOV_PROFILE_ALL=y This was already handled for a couple of other options in commit d812db7828 ("vmlinux.lds.h: Avoid KASAN and KCSAN's unwanted sections") and there is an open LLVM bug for this issue. Take advantage of that section for this config as well so that there are no more orphan warnings. Link: https://bugs.llvm.org/show_bug.cgi?id=46478 Link: https://github.com/ClangBuiltLinux/linux/issues/1069 Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Fangrui Song <maskray@google.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Fixes: d812db7828 ("vmlinux.lds.h: Avoid KASAN and KCSAN's unwanted sections") Cc: stable@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210130004650.2682422-1-nathan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-03-04 11:37:19 +01:00
..
bitops	arm64: make atomic helpers __always_inline	2021-01-27 11:55:00 +01:00
vdso
asm-offsets.h
asm-prototypes.h
atomic64.h
atomic-instrumented.h
atomic-long.h
atomic.h
audit_change_attr.h
audit_dir_write.h
audit_read.h
audit_signal.h
audit_write.h
barrier.h	compiler.h: fix barrier_data() on clang	2020-11-14 11:26:03 -08:00
bitops.h
bitsperlong.h
bug.h	treewide: Convert macro and uses of __section(foo) to __section("foo")	2020-10-25 14:51:49 -07:00
bugs.h
cache.h
cacheflush.h
checksum.h
cmpxchg-local.h
cmpxchg.h
compat.h
current.h
delay.h
device.h
div64.h
dma-mapping.h
dma.h
early_ioremap.h
emergency-restart.h
error-injection.h	treewide: Convert macro and uses of __section(foo) to __section("foo")	2020-10-25 14:51:49 -07:00
exec.h
export.h
extable.h
fb.h
fixmap.h
flat.h
ftrace.h
futex.h
getorder.h
gpio.h
hardirq.h
hugetlb.h
hw_irq.h
hyperv-tlfs.h
ide_iops.h
int-ll64.h
io.h
ioctl.h
iomap.h
irq_regs.h
irq_work.h
irq.h
irqflags.h
Kbuild	local64.h: make <asm/local64.h> mandatory	2021-01-12 20:18:16 +01:00
kdebug.h
kmap_types.h
kprobes.h	treewide: Convert macro and uses of __section(foo) to __section("foo")	2020-10-25 14:51:49 -07:00
kvm_para.h
kvm_types.h
linkage.h
local64.h
local.h
mcs_spinlock.h
memory_model.h
mm_hooks.h
mm-arch-hooks.h
mmiowb_types.h
mmiowb.h
mmu_context.h
mmu.h
module.h
module.lds.h
mshyperv.h	Drivers: hv: vmbus: Add parsing of VMbus interrupt in ACPI DSDT	2020-10-14 19:14:51 +00:00
msi.h
page.h
param.h
parport.h
pci_iomap.h
pci.h
percpu.h	asm-generic: percpu: avoid Wshadow warning	2020-10-26 23:54:48 +00:00
pgalloc.h
pgtable_uffd.h
pgtable-nop4d.h
pgtable-nopmd.h
pgtable-nopud.h
preempt.h
qrwlock_types.h
qrwlock.h
qspinlock_types.h
qspinlock.h
resource.h
rwonce.h
seccomp.h
sections.h
serial.h
set_memory.h
shmparam.h
signal.h
simd.h
spinlock.h
statfs.h
string.h
switch_to.h
syscall.h
syscalls.h
termios-base.h
termios.h
timex.h
tlb.h
tlbflush.h
topology.h
trace_clock.h
uaccess.h	asm-generic: mark __{get,put}_user_fn as __always_inline	2020-10-27 16:13:09 +01:00
unaligned.h
user.h
vermagic.h
vga.h
vmlinux.lds.h	vmlinux.lds.h: Define SANTIZER_DISCARDS with CONFIG_GCOV_KERNEL=y	2021-03-04 11:37:19 +01:00
vtime.h
word-at-a-time.h
xor.h