MFC r345471, r345472, r346603:

Update syscall.master to 5.0.

For 32-bit Linuxulator, ipc() syscall was historically
the entry point for the IPC API. Starting in Linux 4.18, direct
syscalls are prov

MFC r345471, r345472, r346603:

Update syscall.master to 5.0.

For 32-bit Linuxulator, ipc() syscall was historically
the entry point for the IPC API. Starting in Linux 4.18, direct
syscalls are provided for the IPC. Enable it.

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Use linux types for linux-specific syscalls

Sponsored by: Turing Robotic Industries Inc.
Differential Revision: https://reviews.freebsd.org/D14065

Correct pseudo misspelling in sys/ comments

contrib code and #define in intel_ata.h unchanged.

Correct proper nouns in the Linuxulator

- Capitalize Linux
- Spell FreeBSD out in full
- Address some style(9) on changed lines

Sponsored by: Turing Robotic Industries Inc.

Additional linuxolator whitespace cleanup, missed in r328890

Linuxolator whitespace cleanup

A version of each of the MD files by necessity exists for each CPU
architecture supported by the Linuxolator. Clean these up so that new
architectures do not inherit

Linuxolator whitespace cleanup

A version of each of the MD files by necessity exists for each CPU
architecture supported by the Linuxolator. Clean these up so that new
architectures do not inherit whitespace issues.

Clean up shared Linuxolator files while here.

Sponsored by: Turing Robotic Industries Inc.

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Disable vim syntax highlighting.

Vim's default pick doesn't understand that ';' is a comment character
and the result looks horrible.

Reviewed by: emaste

Add UNIMPLEMENTED() placeholder macro for
the syscalls that are not implemented in Linux kernel itself.
Cleanup DUMMY() macros.

Reviewed by: dchagin, trasz
Approved by: dchagin
MFC after: 1 month
Di

Add UNIMPLEMENTED() placeholder macro for
the syscalls that are not implemented in Linux kernel itself.
Cleanup DUMMY() macros.

Reviewed by: dchagin, trasz
Approved by: dchagin
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D9804

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Change Linux epoll_pwait syscall definition to match Linux actual one.

MFC after: 1 month

Change Linuxulator timerfd syscalls definition to match actual Linux one.

MFC after: 1 month

Fix definition of linux64 ptrace syscall.

MFC after: 2 weeks
Sponsored by: DARPA, AFRL

Update syscall.master to 4.10-rc6. Also fix comments, a typo,
and wrong numbering for a few unimplemented syscalls.

For 32-bit Linuxulator, socketcall() syscall was historically
the entry point for

Update syscall.master to 4.10-rc6. Also fix comments, a typo,
and wrong numbering for a few unimplemented syscalls.

For 32-bit Linuxulator, socketcall() syscall was historically
the entry point for the sockets API. Starting in Linux 4.3, direct
syscalls are provided for the sockets API. Enable it.

The initial version of patch was provided by trasz@ and extended by me.

Submitted by: trasz
MFC after: 2 week
Differential Revision: https://reviews.freebsd.org/D9381

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Implement Linux personality() system call mainly due to READ_IMPLIES_EXEC flag.
In Linux if this flag is set, PROT_READ implies PROT_EXEC for mmap().
Linux/i386 set this flag automatically if the bin

Implement Linux personality() system call mainly due to READ_IMPLIES_EXEC flag.
In Linux if this flag is set, PROT_READ implies PROT_EXEC for mmap().
Linux/i386 set this flag automatically if the binary requires executable stack.

READ_IMPLIES_EXEC flag will be used in the next Linux mmap() commit.

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Correct an argument param of linux_sched_* system calls as a struct l_sched_param
does not defined due to it's nature.

MFC after: 1 week

Change linux get_robust_list system call to match actual linux one.

The set_robust_list system call request the kernel to record the head
of the list of robust futexes owned by the calling thread. T

Change linux get_robust_list system call to match actual linux one.

The set_robust_list system call request the kernel to record the head
of the list of robust futexes owned by the calling thread. The head
argument is the list head to record.
The get_robust_list system call should return the head of the robust
list of the thread whose thread id is specified in pid argument.
The list head should be stored in the location pointed to by head
argument.

In contrast, our implemenattion of get_robust_list system call copies
the known portion of memory pointed by recorded in set_robust_list
system call pointer to the head of the robust list to the location
pointed by head argument.

So, it is possible for a local attacker to read portions of kernel
memory, which may result in a privilege escalation.

Submitted by: mjg
Security: SA-16:03.linux

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Rename remaining linux32 symbols such as linux_sysent[] and
linux_syscallnames[] from linux_* to linux32_* to avoid conflicts with
linux64.ko. While here, add support for linux64 binaries to systrac

Rename remaining linux32 symbols such as linux_sysent[] and
linux_syscallnames[] from linux_* to linux32_* to avoid conflicts with
linux64.ko. While here, add support for linux64 binaries to systrace.
- Update NOPROTO entries in amd64/linux/syscalls.master to match the
main table to fix systrace build.
- Add a special case for union l_semun arguments to the systrace
generation.
- The systrace_linux32 module now only builds the systrace_linux32.ko.
module on amd64.
- Add a new systrace_linux module that builds on both i386 and amd64.
For i386 it builds the existing systrace_linux.ko. For amd64 it
builds a systrace_linux.ko for 64-bit binaries.

Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D3954

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Implement Linux specific syncfs() system call.

Implement recvmmsg() and sendmmsg() system calls.

Add utimensat() system call.

The patch developed by Jilles Tjoelker and Andrew Wilcox and
adopted for lemul branch by me.

Call nosys in case when the incorrect syscall number is specified.

Reported by: trinity

Add preliminary fallocate system call implementation
to emulate posix_fallocate() function.

Differential Revision: https://reviews.freebsd.org/D1523
Reviewed by: emaste

Implement ppoll() system call.

Differential Revision: https://reviews.freebsd.org/D1105
Reviewed by: trasz

Implement eventfd system call.

Differential Revision: https://reviews.freebsd.org/D1094
In collaboration with: Jilles Tjoelker

Implement epoll family system calls. This is a tiny wrapper
around kqueue() to implement epoll subset of functionality.
The kqueue user data are 32bit on i386 which is not enough for
epoll user data,

Implement epoll family system calls. This is a tiny wrapper
around kqueue() to implement epoll subset of functionality.
The kqueue user data are 32bit on i386 which is not enough for
epoll user data, so we keep user data in the proc emuldata.

Initial patch developed by rdivacky@ in 2007, then extended
by Yuri Victorovich @ r255672 and finished by me
in collaboration with mjg@ and jillies@.

Differential Revision: https://reviews.freebsd.org/D1092

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Change linux faccessat syscall definition to match actual linux one.

The AT_EACCESS and AT_SYMLINK_NOFOLLOW flags are actually implemented
within the glibc wrapper function for faccessat(). If eith

Change linux faccessat syscall definition to match actual linux one.

The AT_EACCESS and AT_SYMLINK_NOFOLLOW flags are actually implemented
within the glibc wrapper function for faccessat(). If either of these
flags are specified, then the wrapper function employs fstatat() to
determine access permissions.

Differential Revision: https://reviews.freebsd.org/D1078
Reviewed by: trasz

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