From: Brian Gerst <brgerst@gmail.com>
To: linux-kernel@vger.kernel.org, x86@kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@kernel.org>, Borislav Petkov <bp@alien8.de>,
"H . Peter Anvin" <hpa@zytor.com>,
Andy Lutomirski <luto@kernel.org>,
Dominik Brodowski <linux@dominikbrodowski.net>,
Brian Gerst <brgerst@gmail.com>
Subject: [PATCH v4 00/18] x86: syscall wrapper cleanups
Date: Fri, 13 Mar 2020 15:51:26 -0400 [thread overview]
Message-ID: <20200313195144.164260-1-brgerst@gmail.com> (raw)
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
next reply other threads:[~2020-03-13 19:52 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-13 19:51 Brian Gerst [this message]
2020-03-13 19:51 ` [PATCH v4 01/18] x86, syscalls: Refactor SYSCALL_DEFINEx macros Brian Gerst
2020-03-21 15:30 ` [tip: x86/entry] x86/entry: " tip-bot2 for Brian Gerst
2020-03-13 19:51 ` [PATCH v4 02/18] x86, syscalls: Refactor SYSCALL_DEFINE0 macros Brian Gerst
2020-03-21 15:30 ` [tip: x86/entry] x86/entry: " tip-bot2 for Brian Gerst
2020-03-13 19:51 ` [PATCH v4 03/18] x86, syscalls: Refactor COND_SYSCALL macros Brian Gerst
2020-03-21 15:30 ` [tip: x86/entry] x86/entry: " tip-bot2 for Brian Gerst
2020-03-13 19:51 ` [PATCH v4 04/18] x86, syscalls: Refactor SYS_NI macros Brian Gerst
2020-03-21 15:30 ` [tip: x86/entry] x86/entry: " tip-bot2 for Brian Gerst
2020-03-23 8:11 ` [PATCH] x86/entry: Fix SYS_NI() build failure Ingo Molnar
2020-03-23 21:11 ` Brian Gerst
2020-03-13 19:51 ` [PATCH v4 05/18] x86-64: Use syscall wrappers for x32_rt_sigreturn Brian Gerst
2020-03-21 15:30 ` [tip: x86/entry] x86/entry/64: " tip-bot2 for Brian Gerst
2020-03-13 19:51 ` [PATCH v4 06/18] x86-64: Move sys_ni_syscall stub to common.c Brian Gerst
2020-03-21 15:30 ` [tip: x86/entry] x86/entry/64: " tip-bot2 for Brian Gerst
2020-03-13 19:51 ` [PATCH v4 07/18] x86-64: Split X32 syscall table into its own file Brian Gerst
2020-03-14 13:39 ` Dominik Brodowski
2020-03-21 15:30 ` [tip: x86/entry] x86/entry/64: " tip-bot2 for Brian Gerst
2020-03-13 19:51 ` [PATCH v4 08/18] x86: Move max syscall number calculation to syscallhdr.sh Brian Gerst
2020-03-21 15:30 ` [tip: x86/entry] x86/entry: " tip-bot2 for Brian Gerst
2020-03-13 19:51 ` [PATCH v4 09/18] x86-64: Remove ptregs qualifier from syscall table Brian Gerst
2020-03-14 13:42 ` Dominik Brodowski
2020-03-21 15:30 ` [tip: x86/entry] x86/entry/64: " tip-bot2 for Brian Gerst
2020-03-13 19:51 ` [PATCH v4 10/18] x86: Remove syscall qualifier support Brian Gerst
2020-03-14 13:43 ` Dominik Brodowski
2020-03-21 15:30 ` [tip: x86/entry] x86/entry: " tip-bot2 for Brian Gerst
2020-03-13 19:51 ` [PATCH v4 11/18] x86-64: Add __SYSCALL_COMMON() Brian Gerst
2020-03-21 15:30 ` [tip: x86/entry] x86/entry/64: " tip-bot2 for Brian Gerst
2020-03-13 19:51 ` [PATCH v4 12/18] x86: Remove ABI prefixes from functions in syscall tables Brian Gerst
2020-03-21 15:30 ` [tip: x86/entry] x86/entry: " tip-bot2 for Brian Gerst
2020-03-13 19:51 ` [PATCH v4 13/18] x86: Clean up syscall_32.tbl Brian Gerst
2020-03-21 15:30 ` [tip: x86/entry] x86/entry/32: " tip-bot2 for Brian Gerst
2020-03-13 19:51 ` [PATCH v4 14/18] x86, syscalls: Rename 32-bit specific syscalls Brian Gerst
2020-03-14 13:45 ` Dominik Brodowski
2020-03-21 15:30 ` [tip: x86/entry] x86/entry/32: " tip-bot2 for Brian Gerst
2020-03-13 19:51 ` [PATCH v4 15/18] x86: Use IA32-specific wrappers for syscalls taking 64-bit arguments Brian Gerst
2020-03-21 15:30 ` [tip: x86/entry] x86/entry/32: " tip-bot2 for Brian Gerst
2020-06-10 11:29 ` Jiri Slaby
2020-06-10 11:42 ` Jiri Slaby
2020-03-13 19:51 ` [PATCH v4 16/18] x86-32: Enable pt_regs based syscalls Brian Gerst
2020-03-21 15:30 ` [tip: x86/entry] x86/entry/32: " tip-bot2 for Brian Gerst
2020-03-13 19:51 ` [PATCH v4 17/18] x86: Drop asmlinkage from syscalls Brian Gerst
2020-03-21 15:30 ` [tip: x86/entry] x86/entry: " tip-bot2 for Brian Gerst
2020-03-13 19:51 ` [PATCH v4 18/18] x86: Remove unneeded includes Brian Gerst
2020-03-21 15:30 ` [tip: x86/entry] " tip-bot2 for Brian Gerst
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