Anders Roxell 68fa67e939 powerpc/lib/sstep: Fix build errors with newer binutils ...

commit 8219d31effa7be5dbc7ff915d7970672e028c701 upstream.

Building tinyconfig with gcc (Debian 11.2.0-16) and assembler (Debian
2.37.90.20220207) the following build error shows up:

  {standard input}: Assembler messages:
  {standard input}:10576: Error: unrecognized opcode: `stbcx.'
  {standard input}:10680: Error: unrecognized opcode: `lharx'
  {standard input}:10694: Error: unrecognized opcode: `lbarx'

Rework to add assembler directives [1] around the instruction.  The
problem with this might be that we can trick a power6 into
single-stepping through an stbcx. for instance, and it will execute that
in kernel mode.

[1] https://sourceware.org/binutils/docs/as/PowerPC_002dPseudo.html#PowerPC_002dPseudo

Fixes: 350779a29f ("powerpc: Handle most loads and stores in instruction emulation code")
Cc: stable@vger.kernel.org # v4.14+
Co-developed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220224162215.3406642-3-anders.roxell@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2022-04-08 14:40:36 +02:00

..

alloc.c

treewide: add checks for the return value of memblock_alloc*()

2019-03-12 10:04:02 -07:00

checksum_32.S

powerpc32: don't adjust unmoved stack pointer in csum_partial_copy_generic() epilogue

2020-10-14 16:04:13 -07:00

checksum_64.S

ppc: propagate the calling conventions change down to csum_partial_copy_generic()

2020-08-20 15:45:22 -04:00

checksum_wrappers.c

ppc: propagate the calling conventions change down to csum_partial_copy_generic()

2020-08-20 15:45:22 -04:00

code-patching.c

powerpc/lib: Add helper to check if offset is within conditional branch range

2021-11-18 14:04:29 +01:00

copy_32.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

copy_mc_64.S

x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}()

2020-10-06 11:18:04 +02:00

copypage_64.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

copypage_power7.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156

2019-05-30 11:26:35 -07:00

copyuser_64.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

copyuser_power7.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156

2019-05-30 11:26:35 -07:00

crtsavres.S

powerpc/64: Do not create new section for save/restore functions

2017-05-30 14:59:51 +10:00

div64.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

error-inject.c

powerpc: Add support for function error injection

2018-10-20 13:26:43 +11:00

feature-fixups-test.S

powerpc: Test prefixed instructions in feature fixups

2020-05-19 00:11:02 +10:00

feature-fixups.c

powerpc/64s: Fix crashes when toggling entry flush barrier

2021-05-19 10:13:10 +02:00

hweight_64.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156

2019-05-30 11:26:35 -07:00

inst.c

maccess: rename probe_user_{read,write} to copy_{from,to}_user_nofault

2020-06-17 10:57:41 -07:00

ldstfp.S

Merge tag 'powerpc-5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2019-07-13 16:08:36 -07:00

locks.c

powerpc/pseries: Move some PAPR paravirt functions to their own file

2020-07-26 23:34:26 +10:00

Makefile

powerpc/32: Fix boot failure with GCC latent entropy plugin

2022-02-01 17:25:42 +01:00

mem_64.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

memcmp_32.S

powerpc/lib: optimise PPC32 memcmp

2018-06-04 00:39:21 +10:00

memcmp_64.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

memcpy_64.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

memcpy_power7.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156

2019-05-30 11:26:35 -07:00

pmem.c

powerpc/lib: remove memcpy_flushcache redundant return

2020-07-27 00:01:31 +10:00

quad.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

rheap.c

treewide: kmalloc() -> kmalloc_array()

2018-06-12 16:19:22 -07:00

sstep.c

powerpc/lib/sstep: Fix build errors with newer binutils

2022-04-08 14:40:36 +02:00

string_32.S

powerpc: Fix __clear_user() with KUAP enabled

2019-12-16 23:19:44 +11:00

string_64.S

powerpc: Fix __clear_user() with KUAP enabled

2019-12-16 23:19:44 +11:00

string.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

strlen_32.S

powerpc/lib: Implement strlen() in assembly for PPC32

2018-08-07 21:49:30 +10:00

test_code-patching.S

powerpc: Test prefixed code patching

2020-05-19 00:11:02 +10:00

test_emulate_step_exec_instr.S

powerpc/sstep: Add tests for Prefixed Add Immediate

2020-07-23 17:25:21 +10:00

test_emulate_step.c

powerpc/test_emulate_step: Add testcases for divde[.] and divdeu[.] instructions

2020-07-29 23:47:52 +10:00

vmx-helper.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156

2019-05-30 11:26:35 -07:00

xor_vmx_glue.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

xor_vmx.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156

2019-05-30 11:26:35 -07:00

xor_vmx.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00