kernel/arch/hexagon/include/asm/syscall.h, branch linux-5.1.yHosts the 0x221E linux distro kernel.https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-5.1.y2019-04-05T13:26:43Zsyscalls: Remove start and number from syscall_get_arguments() args2019-04-05T13:26:43ZSteven Rostedt (Red Hat)rostedt@goodmis.org2016-11-07T21:26:37Zurn:sha1:b35f549df1d7520d37ba1e6d4a8d4df6bd52d136
At Linux Plumbers, Andy Lutomirski approached me and pointed out that the
function call syscall_get_arguments() implemented in x86 was horribly
written and not optimized for the standard case of passing in 0 and 6 for
the starting index and the number of system calls to get. When looking at
all the users of this function, I discovered that all instances pass in only
0 and 6 for these arguments. Instead of having this function handle
different cases that are never used, simply rewrite it to return the first 6
arguments of a system call.
This should help out the performance of tracing system calls by ptrace,
ftrace and perf.
Link: http://lkml.kernel.org/r/20161107213233.754809394@goodmis.org
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Dave Martin <dave.martin@arm.com>
Cc: "Dmitry V. Levin" <ldv@altlinux.org>
Cc: x86@kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: uclinux-h8-devel@lists.sourceforge.jp
Cc: linux-hexagon@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: nios2-dev@lists.rocketboards.org
Cc: openrisc@lists.librecores.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-riscv@lists.infradead.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Cc: linux-um@lists.infradead.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linux-arch@vger.kernel.org
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
Acked-by: Max Filippov <jcmvbkbc@gmail.com> # For xtensa changes
Acked-by: Will Deacon <will.deacon@arm.com> # For the arm64 bits
Reviewed-by: Thomas Gleixner <tglx@linutronix.de> # for x86
Reviewed-by: Dmitry V. Levin <ldv@altlinux.org>
Reported-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
take sys_fork/sys_vfork/sys_clone prototypes to linux/syscalls.h2012-11-29T04:43:27ZAl Viroviro@zeniv.linux.org.uk2012-11-29T04:04:26Zurn:sha1:24465a40ba452bd81fdc9eecb2d75bb903aafdf6
now it can be done...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
consolidate sys_execve() prototype2012-11-29T02:53:35ZAl Viroviro@zeniv.linux.org.uk2012-10-20T17:32:30Zurn:sha1:6b94631f9e8c45a46056cbc6a7a50ecebea4f8da
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Hexagon: Copyright marking changes2012-10-18T22:07:21ZRichard Kuorkuo@codeaurora.org2012-09-19T21:22:02Zurn:sha1:e1858b2a21cd84a855945a4747fb2db41b250c22
Code Aurora Forum (CAF) is becoming a part of Linux Foundation Labs.
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Hexagon: Add syscalls2011-11-01T14:34:18ZRichard Kuorkuo@codeaurora.org2011-10-31T23:35:16Zurn:sha1:b9398a84590be3a828c168ed25bf1fd3d637988a
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Signed-off-by: Linas Vepstas <linas@codeaurora.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>