linux.git/arch/xtensa/include/asm/syscall.h, branch v5.0.9 Clone of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git xtensa: implement syscall tracepoints 2018-12-17T21:50:25+00:00 Max Filippov jcmvbkbc@gmail.com 2018-11-12T05:51:49+00:00 af5395c214c15c18de3decf2229373a8c88c4fde Add TIF_SYSCALL_TRACEPOINT flag definition; add _TIF_SYSCALL_TRACEPOINT to _TIF_WORK_MASK. Call trace_sys_enter from do_syscall_trace_enter and trace_sys_exit from do_syscall_trace_leave when TIF_SYSCALL_TRACEPOINT flag is set. Add declaration of sys_call_table to arch/xtensa/include/asm/syscall.h Add definition of NR_syscalls to arch/xtensa/include/asm/unistd.h Select HAVE_SYSCALL_TRACEPOINTS. This change allows tracing each syscall entry and exit through the ftrace mechanism. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> 
Add TIF_SYSCALL_TRACEPOINT flag definition; add _TIF_SYSCALL_TRACEPOINT
to _TIF_WORK_MASK. Call trace_sys_enter from do_syscall_trace_enter and
trace_sys_exit from do_syscall_trace_leave when TIF_SYSCALL_TRACEPOINT
flag is set.
Add declaration of sys_call_table to arch/xtensa/include/asm/syscall.h
Add definition of NR_syscalls to arch/xtensa/include/asm/unistd.h
Select HAVE_SYSCALL_TRACEPOINTS.

This change allows tracing each syscall entry and exit through the
ftrace mechanism.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: implement tracehook functions and enable HAVE_ARCH_TRACEHOOK 2018-12-17T21:50:22+00:00 Max Filippov jcmvbkbc@gmail.com 2018-11-09T23:45:53+00:00 9f24f3c1067c8e4ffbbcd759180b422c9a761b1b Implement syscall_get_nr, syscall_rollback, syscall_get_error, syscall_{get,set}_return_value and syscall_{get,set}_arguments. Select HAVE_ARCH_TRACEHOOK as Xtensa now has all support for that. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> 
Implement syscall_get_nr, syscall_rollback, syscall_get_error,
syscall_{get,set}_return_value and syscall_{get,set}_arguments.
Select HAVE_ARCH_TRACEHOOK as Xtensa now has all support for that.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: define syscall_get_arch() 2018-12-17T21:47:25+00:00 Dmitry V. Levin ldv@altlinux.org 2018-11-20T00:17:01+00:00 98c3115a4ec56f03056efd9295e0fcb4c5c57a85 syscall_get_arch() is required to be implemented on all architectures in order to extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO request. Signed-off-by: Dmitry V. Levin <ldv@altlinux.org> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> 
syscall_get_arch() is required to be implemented on all architectures
in order to extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO
request.

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: clean up syscall.h 2018-12-03T09:39:23+00:00 Max Filippov jcmvbkbc@gmail.com 2018-11-09T22:39:24+00:00 58b17c55b610c11b60f1da71c20cc09cfa4e47db Drop non-existent/unneeded function declarations, add header guard. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> 
Drop non-existent/unneeded function declarations, add header guard.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: switch to generic sigaltstack 2013-02-03T23:16:27+00:00 Al Viro viro@zeniv.linux.org.uk 2012-12-23T08:54:43+00:00 0430f2f2764f9db5ee5200c3d24d1eac8a797e28 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
take sys_rt_sigsuspend() prototype to linux/syscalls.h 2013-02-03T23:14:23+00:00 Al Viro viro@zeniv.linux.org.uk 2012-11-25T07:30:08+00:00 0aa0203fb43f04714004b2c4ad33b858e240555d Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
sanitize rt_sigaction() situation a bit 2013-02-03T20:09:18+00:00 Al Viro viro@zeniv.linux.org.uk 2012-11-26T04:12:10+00:00 eaca6eae3e0c41d41fcb9d1d70e00934988dff2e Switch from __ARCH_WANT_SYS_RT_SIGACTION to opposite (!CONFIG_ODD_RT_SIGACTION); the only two architectures that need it are alpha and sparc. The reason for use of CONFIG_... instead of __ARCH_... is that it's needed only kernel-side and doing it that way avoids a mess with include order on many architectures. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
	Switch from __ARCH_WANT_SYS_RT_SIGACTION to opposite
(!CONFIG_ODD_RT_SIGACTION); the only two architectures that
need it are alpha and sparc.  The reason for use of CONFIG_...
instead of __ARCH_... is that it's needed only kernel-side
and doing it that way avoids a mess with include order on many
architectures.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
xtensa: clean up files to make them code-style compliant 2012-12-19T05:10:25+00:00 Chris Zankel chris@zankel.net 2012-11-29T00:53:51+00:00 c4c4594b005d89b56964071bbbdeb07daac5bc76 Remove heading and trailing spaces, trim trailing lines, and wrap lines that are longer than 80 characters. Signed-off-by: Chris Zankel <chris@zankel.net> 
Remove heading and trailing spaces, trim trailing lines, and wrap lines
that are longer than 80 characters.

Signed-off-by: Chris Zankel <chris@zankel.net>
xtensa: switch to generic clone() 2012-11-29T04:43:41+00:00 Al Viro viro@zeniv.linux.org.uk 2012-10-27T03:41:40+00:00 3e41f9ba611cf8b87a20eecc54572b348b48bd91 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
consolidate sys_execve() prototype 2012-11-29T02:53:35+00:00 Al Viro viro@zeniv.linux.org.uk 2012-10-20T17:32:30+00:00 6b94631f9e8c45a46056cbc6a7a50ecebea4f8da Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>