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Subject[PATCH v4 00/18] x86: syscall wrapper cleanups
Date
This patch series cleans up the x86 syscall wrapper code and converts
the 32-bit native kernel over to pt_regs based syscalls. This makes
the 32-bit syscall interface consistent with 64-bit, and a bit more
effecient by not blindly pushing all 6 potential arguments onto the
stack.

Changes since v3:
- Addressed feedback from v3
- Split the X32 syscall table into its own file
- Move the ABI prefix from the syscall table to the wrapper macros
- Additional cleanups
- Changed series title due to broader scope

Changes since v2:
- Moved adding the [compat_]sys_ prefix to the ABI-level macros

Changes since v1:
- Split patch 1 into multiple patches
- Updated comments and patch notes to clarify changes

Brian Gerst (18):
x86, syscalls: Refactor SYSCALL_DEFINEx macros
x86, syscalls: Refactor SYSCALL_DEFINE0 macros
x86, syscalls: Refactor COND_SYSCALL macros
x86, syscalls: Refactor SYS_NI macros
x86-64: Use syscall wrappers for x32_rt_sigreturn
x86-64: Move sys_ni_syscall stub to common.c
x86-64: Split X32 syscall table into its own file
x86: Move max syscall number calculation to syscallhdr.sh
x86-64: Remove ptregs qualifier from syscall table
x86: Remove syscall qualifier support
x86-64: Add __SYSCALL_COMMON()
x86: Remove ABI prefixes from functions in syscall tables
x86: Clean up syscall_32.tbl
x86, syscalls: Rename 32-bit specific syscalls
x86: Use IA32-specific wrappers for syscalls taking 64-bit arguments
x86-32: Enable pt_regs based syscalls
x86: Drop asmlinkage from syscalls
x86: Remove unneeded includes

arch/x86/Kconfig | 2 +-
arch/x86/entry/Makefile | 1 +
arch/x86/entry/common.c | 18 +-
arch/x86/entry/syscall_32.c | 19 +-
arch/x86/entry/syscall_64.c | 39 +-
arch/x86/entry/syscall_x32.c | 29 +
arch/x86/entry/syscalls/syscall_32.tbl | 818 ++++++++++----------
arch/x86/entry/syscalls/syscall_64.tbl | 740 +++++++++---------
arch/x86/entry/syscalls/syscallhdr.sh | 7 +
arch/x86/entry/syscalls/syscalltbl.sh | 44 +-
arch/x86/entry/vdso/vdso32/vclock_gettime.c | 1 +
arch/x86/ia32/Makefile | 2 +-
arch/x86/include/asm/sighandling.h | 5 -
arch/x86/include/asm/syscall.h | 11 +-
arch/x86/include/asm/syscall_wrapper.h | 287 +++----
arch/x86/include/asm/syscalls.h | 34 -
arch/x86/include/asm/unistd.h | 7 +
arch/x86/kernel/Makefile | 2 +
arch/x86/kernel/asm-offsets_32.c | 9 -
arch/x86/kernel/asm-offsets_64.c | 36 -
arch/x86/kernel/ldt.c | 1 -
arch/x86/kernel/process.c | 1 -
arch/x86/kernel/process_32.c | 1 -
arch/x86/kernel/process_64.c | 1 -
arch/x86/kernel/signal.c | 4 +-
arch/x86/{ia32 => kernel}/sys_ia32.c | 143 ++--
arch/x86/kernel/sys_x86_64.c | 1 -
arch/x86/um/Makefile | 1 +
arch/x86/um/sys_call_table_32.c | 6 +-
arch/x86/um/sys_call_table_64.c | 9 +-
arch/x86/um/user-offsets.c | 15 -
31 files changed, 1086 insertions(+), 1208 deletions(-)
create mode 100644 arch/x86/entry/syscall_x32.c
rename arch/x86/{ia32 => kernel}/sys_ia32.c (78%)

--
2.24.1

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