kernel_optimize_test/include
Josh Poimboeuf 3116dee270 objtool: Combine UNWIND_HINT_RET_OFFSET and UNWIND_HINT_FUNC
commit b735bd3e68824316655252a931a3353a6ebc036f upstream.

The ORC metadata generated for UNWIND_HINT_FUNC isn't actually very
func-like.  With certain usages it can cause stack state mismatches
because it doesn't set the return address (CFI_RA).

Also, users of UNWIND_HINT_RET_OFFSET no longer need to set a custom
return stack offset.  Instead they just need to specify a func-like
situation, so the current ret_offset code is hacky for no good reason.

Solve both problems by simplifying the RET_OFFSET handling and
converting it into a more useful UNWIND_HINT_FUNC.

If we end up needing the old 'ret_offset' functionality again in the
future, we should be able to support it pretty easily with the addition
of a custom 'sp_offset' in UNWIND_HINT_FUNC.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lore.kernel.org/r/db9d1f5d79dddfbb3725ef6d8ec3477ad199948d.1611263462.git.jpoimboe@redhat.com
[bwh: Backported to 5.10:
 - Don't use bswap_if_needed() since we don't have any of the other fixes
   for mixed-endian cross-compilation
 - Adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-07-25 11:26:07 +02:00
..
acpi ACPICA: actypes.h: Expand the ACPI_ACCESS_ definitions 2022-01-27 10:54:18 +01:00
asm-generic tlb: hugetlb: Add more sizes to tlb_remove_huge_tlb_entry 2022-04-20 09:23:22 +02:00
clocksource clocksource/drivers/timer-ti-dm: Save and restore timer TIOCP_CFG 2021-07-14 16:56:12 +02:00
crypto crypto: drbg - make reseeding from get_random_bytes() synchronous 2022-06-06 08:42:42 +02:00
drm drm: fix EDID struct for old ARM OABI format 2022-06-09 10:20:59 +02:00
dt-bindings clk: imx8mq: remove SYS PLL 1/2 clock gates 2021-07-14 16:56:20 +02:00
keys certs: Add EFI_CERT_X509_GUID support for dbx entries 2021-06-30 08:47:30 -04:00
kunit
kvm
linux objtool: Combine UNWIND_HINT_RET_OFFSET and UNWIND_HINT_FUNC 2022-07-25 11:26:07 +02:00
math-emu
media media: subdev: disallow ioctl for saa6588/davinci 2021-07-19 09:45:02 +02:00
memory memory: renesas-rpc-if: Fix HF/OSPI data transfer in Manual Mode 2022-05-09 09:05:02 +02:00
misc
net net/tls: Check for errors in tls_device_init 2022-07-21 21:20:13 +02:00
pcmcia
ras
rdma RDMA/netlink: Add __maybe_unused to static inline in C file 2021-11-26 10:39:21 +01:00
scsi scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac() 2022-06-09 10:21:15 +02:00
soc firmware: raspberrypi: Keep count of all consumers 2021-09-15 09:50:41 +02:00
sound ALSA: jack: Access input_dev under mutex 2022-06-09 10:20:51 +02:00
target scsi: target: Fix ordered tag handling 2021-11-26 10:39:11 +01:00
trace net: sock: tracing: Fix sock_exceed_buf_limit not to dereference stale pointer 2022-07-21 21:20:00 +02:00
uapi include/uapi/linux/xfrm.h: Fix XFRM_MSG_MAPPING ABI breakage 2022-05-25 09:18:02 +02:00
vdso
video video: of_display_timing.h: include errno.h 2022-07-12 16:32:19 +02:00
xen xen/gnttab: fix gnttab_end_foreign_access() without page specified 2022-03-11 12:11:54 +01:00