linux/tools
Nicholas Piggin 5665bc35c1 powerpc/64s/syscall: Use pt_regs.trap to distinguish syscall ABI difference between sc and scv syscalls
The sc and scv 0 system calls have different ABI conventions, and
ptracers need to know which system call type is being used if they want
to look at the syscall registers.

Document that pt_regs.trap can be used for this, and fix one in-tree user
to work with scv 0 syscalls.

Fixes: 7fa95f9ada ("powerpc/64s: system call support for scv/rfscv instructions")
Cc: stable@vger.kernel.org # v5.9+
Reported-by: "Dmitry V. Levin" <ldv@altlinux.org>
Suggested-by: "Dmitry V. Levin" <ldv@altlinux.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210520111931.2597127-1-npiggin@gmail.com
2021-05-21 00:58:03 +10:00
..
accounting
arch - Enable -Wundef for the compressed kernel build stage 2021-05-16 09:31:06 -07:00
bootconfig
bpf
build perf tools changes for v5.13: 1st batch 2021-05-01 12:22:38 -07:00
cgroup
debugging
edid
firewire
firmware
gpio
hv
iio
include tools headers UAPI: Sync perf_event.h with the kernel sources 2021-05-10 09:01:01 -03:00
io_uring
kvm/kvm_stat tools/kvm_stat: Fix documentation typo 2021-05-07 06:06:22 -04:00
laptop
leds
lib Networking fixes for 5.13-rc1, including fixes from bpf, can 2021-05-08 08:31:46 -07:00
memory-model
objtool objtool/x86: Fix elf_add_alternative() endianness 2021-05-12 21:17:01 +02:00
pci
pcmcia
perf tools headers UAPI: Sync perf_event.h with the kernel sources 2021-05-10 09:01:01 -03:00
power Merge branch 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2021-05-05 12:24:29 -07:00
scripts tools: disable -Wno-type-limits 2021-05-06 19:24:11 -07:00
spi
testing powerpc/64s/syscall: Use pt_regs.trap to distinguish syscall ABI difference between sc and scv syscalls 2021-05-21 00:58:03 +10:00
thermal/tmon
time
tracing
usb treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
virtio
vm
wmi
Makefile