kernel_optimize_test/include/asm-generic
Nathan Chancellor b5f05bdfda vmlinux.lds.h: Handle clang's module.{c,d}tor sections
commit 848378812e40152abe9b9baf58ce2004f76fb988 upstream.

A recent change in LLVM causes module_{c,d}tor sections to appear when
CONFIG_K{A,C}SAN are enabled, which results in orphan section warnings
because these are not handled anywhere:

ld.lld: warning: arch/x86/pci/built-in.a(legacy.o):(.text.asan.module_ctor) is being placed in '.text.asan.module_ctor'
ld.lld: warning: arch/x86/pci/built-in.a(legacy.o):(.text.asan.module_dtor) is being placed in '.text.asan.module_dtor'
ld.lld: warning: arch/x86/pci/built-in.a(legacy.o):(.text.tsan.module_ctor) is being placed in '.text.tsan.module_ctor'

Fangrui explains: "the function asan.module_ctor has the SHF_GNU_RETAIN
flag, so it is in a separate section even with -fno-function-sections
(default)".

Place them in the TEXT_TEXT section so that these technologies continue
to work with the newer compiler versions. All of the KASAN and KCSAN
KUnit tests continue to pass after this change.

Cc: stable@vger.kernel.org
Link: https://github.com/ClangBuiltLinux/linux/issues/1432
Link: 7b78956224
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Fangrui Song <maskray@google.com>
Acked-by: Marco Elver <elver@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210731023107.1932981-1-nathan@kernel.org
[nc: Resolve conflict due to lack of cf68fffb66d60]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-18 08:59:18 +02:00
..
bitops arm64: make atomic helpers __always_inline 2021-01-27 11:55:00 +01:00
vdso
asm-offsets.h
asm-prototypes.h
atomic-instrumented.h locking/atomics: Use read-write instrumentation for atomic RMWs 2020-08-24 15:09:59 -07:00
atomic-long.h
atomic.h
atomic64.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 unify generic instances of csum_partial_copy_nocheck() 2020-08-20 15:45:14 -04:00
cmpxchg-local.h
cmpxchg.h
compat.h compat: lift compat_s64 and compat_u64 to <asm-generic/compat.h> 2020-09-17 13:00:46 -04:00
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 asm-generic/io.h: Fix !CONFIG_GENERIC_IOMAP pci_iounmap() implementation 2020-10-05 09:44:16 +01:00
ioctl.h
iomap.h iomap: constify ioreadX() iomem argument (as in generic implementation) 2020-08-14 19:56:57 -07:00
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
local.h
local64.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 kbuild: preprocess module linker script 2020-09-25 00:36:41 +09:00
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 asm-generic: pgalloc.h: use correct #ifdef to enable pud_alloc_one() 2020-08-14 19:56:55 -07:00
pgtable_uffd.h
pgtable-nop4d.h
pgtable-nopmd.h
pgtable-nopud.h
preempt.h sched/core: Initialize the idle task with preemption disabled 2021-07-14 16:55:50 +02:00
qrwlock_types.h
qrwlock.h
qspinlock_types.h
qspinlock.h powerpc updates for 5.9 2020-08-07 10:33:50 -07:00
resource.h
rwonce.h
seccomp.h
sections.h sections.h: dereference_function_descriptor() returns void pointer 2020-08-11 12:06:15 +02:00
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 mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
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: Handle clang's module.{c,d}tor sections 2021-08-18 08:59:18 +02:00
vtime.h
word-at-a-time.h
xor.h