[PATCH 0/8] x86 signal code cleanups

From: Brian Gerst
Date: Mon Jun 06 2022 - 16:43:06 EST


The 32-bit signal code has significant differences from 64-bit, and
those are duplicated for native and compat modes. This patch series
merges the 32-bit code into one file, and does some general cleanups
in the x86 signal code. There should be no functional changes.

Brian Gerst (8):
x86/signal: Remove sig parameter from frame setup functions
x86/signal: Remove sigset_t parameter from frame setup functions
signal/compat: Remove compat_sigset_t override
x86: Remove __USER32_DS
x86/signal: Merge get_sigframe()
x86/signal: Add ABI prefixes to frame setup functions
x86/signal/32: Merge native and compat 32-bit signal code
x86/signal/64: Move 64-bit signal code to its own file

arch/x86/entry/entry_64_compat.S | 4 +-
arch/x86/ia32/Makefile | 2 -
arch/x86/include/asm/elf.h | 4 -
arch/x86/include/asm/fpu/signal.h | 7 -
arch/x86/include/asm/segment.h | 2 +-
arch/x86/include/asm/sighandling.h | 9 +
arch/x86/include/asm/signal.h | 5 -
arch/x86/kernel/Makefile | 4 +-
arch/x86/kernel/signal.c | 654 +-----------------
.../ia32_signal.c => kernel/signal_32.c} | 117 ++--
arch/x86/kernel/signal_64.c | 383 ++++++++++
arch/x86/xen/xen-asm.S | 8 +-
include/linux/compat.h | 2 -
include/linux/syscalls.h | 2 +
14 files changed, 493 insertions(+), 710 deletions(-)
rename arch/x86/{ia32/ia32_signal.c => kernel/signal_32.c} (82%)
create mode 100644 arch/x86/kernel/signal_64.c

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2.35.3