Commit Graph

32 Commits

Author SHA1 Message Date
John Baldwin
2f99bcce1e 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
2015-10-22 21:28:20 +00:00
Mateusz Guzik
3e15a670d2 linux: fix handling of out-of-bounds syscall attempts
Due to an off by one the code would read an entry past the table, as
opposed to the last entry which contains the nosys handler.

Reported by:	Pawel Biernacki <pawel.biernacki gmail.com>
2015-10-08 21:08:35 +00:00
Mateusz Guzik
21de5aea6c Fixup the build after r284215.
Submitted by:	Ivan Klymenko <fidaj ukr.net> [slighly modified]
2015-06-10 12:39:01 +00:00
Dmitry Chagin
c2bc5b15eb Futex is an aligned 32-bit integer. Use the proper instruction and
operand when dereferencing futex pointer.
2015-06-08 17:39:25 +00:00
Dmitry Chagin
5c5aac2d45 Regen for r283492. 2015-05-24 18:09:01 +00:00
Dmitry Chagin
9802eb9ebc Implement Linux specific syncfs() system call. 2015-05-24 18:08:01 +00:00
Dmitry Chagin
c532a88cfc Regen for r283488. 2015-05-24 18:05:21 +00:00
Dmitry Chagin
e1ff74c0f7 Implement recvmmsg() and sendmmsg() system calls. 2015-05-24 18:04:04 +00:00
Dmitry Chagin
b7aaa9fdb0 Reduce duplication between MD Linux code by moving msg related
struct definitions out into the compat/linux/linux_socket.h
2015-05-24 18:03:14 +00:00
Dmitry Chagin
6e4c8004dc Implement epoll_pwait() system call. 2015-05-24 18:00:14 +00:00
Dmitry Chagin
ca045164a7 Regen for r283480. 2015-05-24 17:58:24 +00:00
Dmitry Chagin
19d8b461f4 Add utimensat() system call.
The patch developed by Jilles Tjoelker and Andrew Wilcox and
adopted for lemul branch by me.
2015-05-24 17:57:07 +00:00
Dmitry Chagin
4ab7403bbd Rework signal code to allow using it by other modules, like linprocfs:
1. Linux sigset always 64 bit on all platforms. In order to move Linux
sigset code to the linux_common module define it as 64 bit int. Move
Linux sigset manipulation routines to the MI path.

2. Move Linux signal number definitions to the MI path. In general, they
are the same on all platforms except for a few signals.

3. Map Linux RT signals to the FreeBSD RT signals and hide signal conversion
tables to avoid conversion errors.

4. Emulate Linux SIGPWR signal via FreeBSD SIGRTMIN signal which is outside
of allowed on Linux signal numbers.

PR:		197216
2015-05-24 17:47:20 +00:00
Dmitry Chagin
a7ac457613 According to Linux man sigaltstack(3) shall return EINVAL if the ss
argument is not a null pointer, and the ss_flags member pointed to by ss
contains flags other than SS_DISABLE. However, in fact, Linux also
allows SS_ONSTACK flag which is simply ignored.

For buggy apps (at least mono) ignore other than SS_DISABLE
flags as a Linux do.

While here move MI part of sigaltstack code to the appropriate place.

Reported by:	abi at abinet dot ru
2015-05-24 17:44:08 +00:00
Dmitry Chagin
657100de57 Regen for r283467. 2015-05-24 17:39:18 +00:00
Dmitry Chagin
fcdffc03f8 Call nosys in case when the incorrect syscall number is specified.
Reported by:	trinity
2015-05-24 17:38:02 +00:00
Dmitry Chagin
8d939ad405 Regen for r283465. 2015-05-24 17:35:42 +00:00
Dmitry Chagin
b6aeb7d5dd Add preliminary fallocate system call implementation
to emulate posix_fallocate() function.

Differential Revision:	https://reviews.freebsd.org/D1523
Reviewed by:	emaste
2015-05-24 17:33:21 +00:00
Dmitry Chagin
274d2df2e5 Regen for r283451. 2015-05-24 17:00:43 +00:00
Dmitry Chagin
a6b40812ec Implement ppoll() system call.
Differential Revision:	https://reviews.freebsd.org/D1105
Reviewed by:	trasz
2015-05-24 16:59:25 +00:00
Dmitry Chagin
22f3dfdc12 Regen for r283444. 2015-05-24 16:50:17 +00:00
Dmitry Chagin
a31d76867d Implement eventfd system call.
Differential Revision:	https://reviews.freebsd.org/D1094
In collaboration with:	Jilles Tjoelker
2015-05-24 16:49:14 +00:00
Dmitry Chagin
3e89b64168 Put the correct value for the abi_nfdbits parameter of kern_select() for
all supported Linuxulators.

Differential Revision:	https://reviews.freebsd.org/D1093
Reviewed by:	trasz
2015-05-24 16:47:13 +00:00
Dmitry Chagin
28fb55359b Regen for r283441. 2015-05-24 16:42:49 +00:00
Dmitry Chagin
e16fe1c730 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
2015-05-24 16:41:39 +00:00
Dmitry Chagin
4d0f380d87 To avoid code duplication move open/fcntl definitions to the MI
header file.

Differential Revision:	https://reviews.freebsd.org/D1087
Reviewed by:	trasz
2015-05-24 16:31:44 +00:00
Dmitry Chagin
437c43c1cb Being exported through vdso the note.Linux section used by glibc
to determine the kernel version (this saves one uname call).
Temporarily disable the export of a note.Linux section until I figured
out how to change the kernel version in the note.Linux on the fly.

Differential Revision:	https://reviews.freebsd.org/D1081
Reviewed by:	trasz
2015-05-24 16:25:44 +00:00
Dmitry Chagin
4048f59cd0 Add AT_RANDOM and AT_EXECFN auxiliary vector entries which are used by
glibc. At list since glibc version 2.16 using AT_RANDOM is mandatory.

Differential Revision:	https://reviews.freebsd.org/D1080
2015-05-24 16:24:24 +00:00
Dmitry Chagin
0a1884d768 Regen for r283428. 2015-05-24 16:19:57 +00:00
Dmitry Chagin
baa232bbfd 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
2015-05-24 16:18:03 +00:00
Dmitry Chagin
523be40fe4 Regen for r283424. 2015-05-24 16:11:21 +00:00
Dmitry Chagin
b2f587918d Add preliminary support for x86-64 Linux binaries.
Differential Revision:	https://reviews.freebsd.org/D1076
2015-05-24 16:07:11 +00:00