Commit Graph

178 Commits

Author SHA1 Message Date
Laurent Vivier
3ea7f4a226 linux-user: fix TARGET___O_TMPFILE for sparc
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180402102453.9883-3-laurent@vivier.eu>
2018-04-03 11:50:24 +02:00
Laurent Vivier
5de154e82f linux-user: define TARGET_ARCH_HAS_KA_RESTORER
Sparc as an extended sigaction structure containing
the field ka_restorer used in place of sa_restorer.

Define TARGET_ARCH_HAS_KA_RESTORER and use it
with sparc.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180402102453.9883-2-laurent@vivier.eu>
2018-04-03 11:50:15 +02:00
Peter Maydell
e1e44a9916 target/xtensa linux-user support.
- small cleanup for xtensa registers dumping (-d cpu);
 - add support for debugging linux-user process with xtensa-linux-gdb
   (as opposed to xtensa-elf-gdb), which can only access unprivileged
   registers;
 - enable MTTCG for target/xtensa;
 - cleanup in linux-user/mmap area making sure that it works correctly
   with limited 30-bit-wide user address space;
 - import xtensa-specific definitions from the linux kernel,
   conditionalize user-only/softmmu-only code and add handlers for
   signals, exceptions, process/thread creation and core registers dumping.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEEK2eFS5jlMn3N6xfYUfnMkfg/oEQFAlqr9NsTHGpjbXZia2Jj
 QGdtYWlsLmNvbQAKCRBR+cyR+D+gRHjDD/9dQxuirsTjU+oO2OMU5YjDBF6Hy+KA
 O4hJoWh/jNyUzgZOAtmpbZmuB1GJ5gNDhl5lifEFIWtAqf/qi/M87ibCQbdjFQ+t
 sT+FVgSU9X16J9wBKtUPV4DBMeMvJenHtFlCCw6oZxF5cnqGXw7e4yQtn7/KI8jT
 ymu7hiCaGJJ4ao/FG8KbIs3iSpQcfbIN7kEfuL92tMNjVWWTnNVhPVxyg3Bojkib
 pRFELL/BO3Ud3P83BncA5TNp6O1rFwKRYBK9nwLGWrjFMEbomdT5LWSZuZK9UVN9
 aLoC/GnvGCnvAth8E4L0dDOmyz9MRDJ5rYJoaxoEVYzvz8rexVyAjpC/zOrJVxuK
 xrgandQtrFGkp5NJD6QpM92b7YDyR1w1s24KlehZivzHoN83cN3CuCHLWcqgicza
 /x4r/OQ4uiSUTex2Cg2hVQJR6m1LkJKa94Mimrd7G/zCHSF/BDks170o5DpW7JT8
 QWfYTtZg13auzPsgZmGE+/b1o5PBXhnlBPzD983X6u5cgS5RWyik3jhmp5rEx8wH
 sxV5kvMb96JlUDCuwPTu9zJhJ3rqbWtCR7+4Sh1PCcsr6vVgsV0EZHAapwrG5GPp
 pOxLlZ54ObK3oSW6SB8TnS1rEiGkBHMhSL1O6VdKOvAXFPCVZsIGBGTpuf6MEn6c
 hRg0iBGQ6GMUUw==
 =UCny
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/xtensa/tags/20180316-xtensa' into staging

target/xtensa linux-user support.

- small cleanup for xtensa registers dumping (-d cpu);
- add support for debugging linux-user process with xtensa-linux-gdb
  (as opposed to xtensa-elf-gdb), which can only access unprivileged
  registers;
- enable MTTCG for target/xtensa;
- cleanup in linux-user/mmap area making sure that it works correctly
  with limited 30-bit-wide user address space;
- import xtensa-specific definitions from the linux kernel,
  conditionalize user-only/softmmu-only code and add handlers for
  signals, exceptions, process/thread creation and core registers dumping.

# gpg: Signature made Fri 16 Mar 2018 16:46:19 GMT
# gpg:                using RSA key 51F9CC91F83FA044
# gpg: Good signature from "Max Filippov <filippov@cadence.com>"
# gpg:                 aka "Max Filippov <max.filippov@cogentembedded.com>"
# gpg:                 aka "Max Filippov <jcmvbkbc@gmail.com>"
# Primary key fingerprint: 2B67 854B 98E5 327D CDEB  17D8 51F9 CC91 F83F A044

* remotes/xtensa/tags/20180316-xtensa:
  MAINTAINERS: fix W: address for xtensa
  qemu-binfmt-conf.sh: add qemu-xtensa
  target/xtensa: add linux-user support
  linux-user: drop unused target_msync function
  linux-user: fix target_mprotect/target_munmap error return values
  linux-user: fix assertion in shmdt
  linux-user: fix mmap/munmap/mprotect/mremap/shmat
  target/xtensa: support MTTCG
  target/xtensa: use correct number of registers in gdbstub
  target/xtensa: mark register windows in the dump
  target/xtensa: dump correct physical registers

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

# Conflicts:
#	linux-user/syscall.c
2018-03-17 14:15:03 +00:00
Max Filippov
ba7651fba5 target/xtensa: add linux-user support
Import list of syscalls from the kernel source. Conditionalize code/data
that is only used with softmmu. Implement exception handlers. Implement
signal hander (only the core registers for now, no coprocessors or TIE).

Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2018-03-16 09:40:34 -07:00
Shea Levy
d4247ec2d7 linux-user: Support f_flags in statfs when available.
Signed-off-by: Shea Levy <shea@shealevy.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180301111500.15717-1-shea@shealevy.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-03-09 19:21:34 +01:00
Peter Maydell
daa4374a04 linux-user: Drop unicore32 code
We dropped the unicore32-linux-user target in commit 5e2b40f727
in 2016. Nobody has made any attempt to fix the issues that
caused us to drop it, so remove the associated code.
(The system emulation parts of unicore32 remain.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180308144733.25615-2-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-03-09 19:17:27 +01:00
Michael Clark
47ae93cdfe
RISC-V Linux User Emulation
Implementation of linux user emulation for RISC-V.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu>
Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-07 08:30:28 +13:00
Peter Maydell
ad762b990f linux-user: Don't use CMSG_ALIGN(sizeof struct cmsghdr)
The Linux struct cmsghdr is already guaranteed to be sufficiently
aligned that CMSG_ALIGN(sizeof struct cmsghdr) is always equal
to sizeof struct cmsghdr. Stop doing the unnecessary alignment
arithmetic for host and target cmsghdr.

This follows kernel commit 1ff8cebf49ed9e9ca2 and brings our
TARGET_CMSG_* macros back into line with the kernel ones,
as well as making them easier to understand.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1513345976-22958-3-git-send-email-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-01-23 14:20:52 +01:00
Helge Deller
541e169042 linux-user: Handle TARGET_MAP_STACK and TARGET_MAP_HUGETLB
Add the missing defines and for TARGET_MAP_STACK and TARGET_MAP_HUGETLB
for alpha, mips, ppc, x86, hppa.  Fix the mmap_flags translation table
to translate MAP_HUGETLB between host and target architecture, and to
drop MAP_STACK.

Signed-off-by: Helge Deller <deller@gmx.de>
Message-Id: <20170311183016.GA20514@ls3530.fritz.box>
[rth: Drop MAP_STACK instead of translating it, since it is ignored
in the kernel anyway.  Fix tabs to spaces.]
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-11-07 21:58:13 +02:00
Helge Deller
3d60c84dea linux-user/hppa: Fix TARGET_F_RDLCK, TARGET_F_WRLCK, TARGET_F_UNLCK
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-ID: <20170311175019.GA7195@ls3530.fritz.box>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-11-07 21:58:13 +02:00
Helge Deller
e65be6a7cf linux-user/hppa: Fix TARGET_MAP_TYPE
TARGET_MAP_TYPE needs to be 0x03 instead of 0x0f on the hppa
architecture, otherwise it conflicts with MAP_FIXED which is 0x04.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-ID: <20170311175019.GA7195@ls3530.fritz.box>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-11-07 21:58:13 +02:00
Helge Deller
2da6e76cca linux-user/hppa: Fix TARGET_SA_* defines
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-11-07 21:58:12 +02:00
Richard Henderson
7f047de18c linux-user: Restrict usage of sa_restorer
Reading and writing to an sa_restorer member that isn't supposed to
exist corrupts user memory.  Introduce TARGET_ARCH_HAS_SA_RESTORER,
similar to the kernel's __ARCH_HAS_SA_RESTORER.

Reported-by: Helge Deller <deller@gmx.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-11-07 21:58:12 +02:00
Peter Maydell
f2a48d696c Linux-user updates for Qemu 2.11
-----BEGIN PGP SIGNATURE-----
 
 iQJLBAABCAA1FiEE/4IDyMORmK4FgUHvtEiQ3t48m8AFAlnnRv4XHHJpa3Uudm9p
 cGlvQGxpbmFyby5vcmcACgkQtEiQ3t48m8D1hw/8Cu/gXcWzHPxoqU/Bz9lSMS0+
 1UICiGBVNBcrs7QapG+Z4mI4goGcxjFKFEFgHuuvQTb91ONR43jIx4cNryOlu3jS
 9njiHkgY7EeKXf84uPToie9WiXvf2IMI6wKdqJ53htJ8/Y1putbJ2CGf7c8vGIGh
 9WhNGbiQyhpWU3xrEThVptUz+CVOqXxBYVKff0krG7ZSyODhrybPDkp8D020rXa1
 O7oc8pAvwpYWiqpp+iiEU5PXFB7DoLUldefqqZQw+Rgntu6sEU+Rum7ykA2d6jBR
 o0YldbJeU2eq2Kh9EqJHDbTZwevTeul6NEcgd6ZoJkTDhOSDK9mMd6jkkRUHzf+u
 OAlGFFmfdqf9NE5S38XIMRHykwgMtWzQNU2MVLtalkEcadbOy7RnY/lOE/uEACh4
 Ao/GPMDCar7nYR2Ga/P9LXFhR90hbvvvRAB10l7TIgE6/EJJUJs9E0HxC5ktsonv
 gC4tMTejhCwe61Neb0Z9b2gxSkwznJYe9OdTa13CENXMAy3AqPUTsDY91Y80HdpX
 3rE869VSHMIQNuyNecCrUeHyKYkLoB+qGmavtO7m1RNEUeWTPP2WSDMCVKxVT4bg
 ol0UeTOwy0hGm2MUwn3scL+yMEVWjcEyInWDZCCGIvJMxfnwkqAMTO0xZXAIE8n0
 bBHdQ4xVsujMIDmQcO0=
 =9fWY
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/riku/tags/pull-linux-user-20171018' into staging

Linux-user updates for Qemu 2.11

# gpg: Signature made Wed 18 Oct 2017 13:20:14 BST
# gpg:                using RSA key 0xB44890DEDE3C9BC0
# gpg: Good signature from "Riku Voipio <riku.voipio@iki.fi>"
# gpg:                 aka "Riku Voipio <riku.voipio@linaro.org>"
# Primary key fingerprint: FF82 03C8 C391 98AE 0581  41EF B448 90DE DE3C 9BC0

* remotes/riku/tags/pull-linux-user-20171018:
  linux-user: Fix TARGET_MTIOCTOP/MTIOCGET/MTIOCPOS values
  linux-user/main: support dfilter
  linux-user: Fix target FS_IOC_GETFLAGS and FS_IOC_SETFLAGS numbers
  linux-user/sh4: Reduce TARGET_VIRT_ADDR_SPACE_BITS to 31
  linux-user: Tidy and enforce reserved_va initialization
  tcg: Fix off-by-one in assert in page_set_flags
  linux-user: Allow -R values up to 0xffff0000 for 32-bit ARM guests
  linux-user: remove duplicate break in syscall
  target/m68k,linux-user: manage FP registers in ucontext
  linux-user: fix O_TMPFILE handling

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-10-19 14:39:30 +01:00
Peter Maydell
f443e3960d linux-user: Fix TARGET_MTIOCTOP/MTIOCGET/MTIOCPOS values
The TARGET_MTIOCTOP/TARGET_MTIOCGET/TARGET_MTIOCPOS values
were being defined in terms of host struct types, but
these structures are such that their size might differ
on different hosts. Switch to using a target struct
definition instead.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-10-17 22:24:02 +03:00
Marco A L Barbosa
d6d6d6fe17 linux-user: Add some random ioctls
Signed-off-by: Marco A L Barbosa <malbarbo@gmail.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-10-16 21:00:04 +03:00
Peter Maydell
1847b7ba70 linux-user: Fix target FS_IOC_GETFLAGS and FS_IOC_SETFLAGS numbers
We were defining TARGET_FS_IOC_GETFLAGS and TARGET_FS_IOC_SETFLAGS
using the host 'long' type in the size field, which meant that
they had the wrong values if the host and guest had different
sized longs. Switch to abi_long instead.

This fixes a bug where these ioctls don't work on 32-bit guests
on 64-bit hosts (and makes the LTP test 'setxattr03' pass
where it did not previously.)

Reported-by: pgndev <pgnet.dev@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-10-16 16:04:33 +03:00
Riku Voipio
5f9cee46cd linux-user: fix O_TMPFILE handling
Since O_TMPFILE might differ between guest and host,
add it to the bitmask_transtbl. While at it, fix the definitions
of O_DIRECTORY etc which should arm32 according to kernel sources.

This fixes open14 and openat03 ltp testcases. Fixes:

https://bugs.launchpad.net/qemu/+bug/1709170
2017-10-16 16:00:56 +03:00
Helge Deller
ee1ac3a182 linux-user: Add sockopts for IPv6 ping and IPv6 traceroute
Add the neccessary sockopts for ping and traceroute on IPv6.

This fixes the following qemu warnings with IPv6:
Unsupported ancillary data: 0/2
Unsupported ancillary data: 0/11
Unsupported ancillary data: 41/25
Unsupported setsockopt level=0 optname=12
Unsupported setsockopt level=41 optname=16
Unsupported setsockopt level=41 optname=25
Unsupported setsockopt level=41 optname=50
Unsupported setsockopt level=41 optname=51
Unsupported setsockopt level=41 optname=8
Unsupported setsockopt level=58 optname=1

Tested with hppa-linux-user (big-endian) on x86_64 (little-endian).

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170218223130.GA25278@ls3530.fritz.box>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2017-02-27 23:10:02 +01:00
Helge Deller
21992cb679 linux-user: Add FICLONE and FICLONERANGE ioctls
Add missing FICLONE and FICLONERANGE ioctls.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20170211222602.GA6399@ls3530.fritz.box>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2017-02-16 15:29:30 +01:00
Marek Vasut
a0a839b65b nios2: Add usermode binaries emulation
Add missing bits for qemu-user required for emulating Altera Nios2
userspace binaries.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chris Wulff <crwulff@gmail.com>
Cc: Jeff Da Silva <jdasilva@altera.com>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Sandra Loosemore <sandra@codesourcery.com>
Cc: Yves Vandervennet <yvanderv@altera.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Message-Id: <20170118220146.489-4-marex@denx.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-24 13:10:35 -08:00
Richard Henderson
a10d1e50d9 linux-user: Add HPPA definitions to syscall_defs.h 2017-01-23 09:52:39 -08:00
Helge Deller
b5c375e2fa linux-user: Add some hppa ioctls
Add F_GETLK, F_SETLK, F_SETLKW, F_GETOWN, F_SETOWN, F_SETSIG, F_GETSIG,
F_GETLK64, F_SETLK64 and F_SETLKW64 for hppa.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23 09:52:39 -08:00
Helge Deller
405b491504 linux-user: Add SIOCGPGRP, SIOCGSTAMP, SIOCGSTAMPNS
Mirror syscall_defs.h for the element type of struct timeval
and struct timespec, even though that's not 100% accurate for
each guest.

Signed-off-by: Helge Deller <deller@gmx.de>
[rth: Changed the MK_ARRAY types as per above; added ioctl.h entries.]
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-22 18:14:10 -08:00
Richard Henderson
429b31a205 Revert "Remove remainders of HPPA backend"
This reverts commit d41f3c3cc7.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-22 18:13:56 -08:00
Peter Maydell
17351c3f11 linux-user: Fix definition of target_sigevent for 32-bit guests
The sigevent structure includes a union with some fields which
are pointers. For the QEMU target_sigevent structure we must
represent these as abi_ulongs, not host function pointers.

This error was causing the compiler to believe it should 8-align
the _sigev_un union on a 64-bit host, which meant that the
code in target_to_host_sigevent() was looking at the wrong
offset to find the _tid field, and timer_create() would
spuriously fail with EINVAL.

This fixes the final loose end noted in LP:1042388.

While we're editing the structure, switch the 'int32_t' fields
to 'abi_int'; this will only matter for guests with non-standard
integer alignment like m68k.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-10-21 15:19:41 +03:00
Aleksandar Markovic
da2c8ad7a5 linux-user: Fix syslog() syscall support
There are currently several problems related to syslog() support.

For example, if the second argument "bufp" of target syslog() syscall
is NULL, the current implementation always returns error code EFAULT.
However, NULL is a perfectly valid value for the second argument for
many use cases of this syscall. This is, for example, visible from
this excerpt of man page for syslog(2):

> EINVAL Bad arguments (e.g., bad type; or for type 2, 3, or 4, buf is
>        NULL, or len is less than zero; or for type 8, the level is
>        outside the range 1 to 8).

Moreover, the argument "bufp" is ignored for all cases of values of the
first argument, except 2, 3 and 4. This means that for such cases
(the first argument is not 2, 3 or 4), there is no need to pass "buf"
between host and target, and it can be set to NULL while calling host's
syslog(), without loss of emulation accuracy.

Note also that if "bufp" is NULL and the first argument is 2, 3 or 4, the
correct returned error code is EINVAL, not EFAULT.

All these details are reflected in this patch.

"#ifdef TARGET_NR_syslog" is also proprerly inserted when needed.

Support for Qemu's "-strace" switch for syslog() syscall is included too.

LTP tests syslog11 and syslog12 pass with this patch (while fail without
it), on any platform.

Changes to original patch by Riku Voipio:

 fixed error paths in TARGET_SYSLOG_ACTION_READ_ALL to match

http://lxr.free-electrons.com/source/kernel/printk/printk.c?v=4.7#L1335

Should fix also the build error in:

https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg03721.html

Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-10-21 15:19:40 +03:00
Aleksandar Markovic
ff71a4545c linux-user: Fix socketcall() syscall support
Since not all Linux host platforms support socketcall() (most notably
Intel), do_socketcall() function in Qemu's syscalls.c is implemented to
mirror the corespondant implementation of socketcall() in Linux kernel,
and to utilise individual socket operations that are supported on all
Linux platforms. (see kernel source file net/socket.c, definition of
socketcall).

However, error codes produced by Qemu implementation are wrong for the
cases of invalid values of the first argument. Also, naming of constants
is not consistent with kernel one, and not consistant with Qemu convention
of prefixing such constants with "TARGET_". This patch in that light
brings do_socketcall() closer to its kernel counterpart, and in that way
fixes the errors and yields more consisrtent Qemu code.

There were also three missing cases (among 20) for strace support for
socketcall(). The array that contains pointers for appropriate printing
functions is updated with 3 elements, however pointers to functions are
left NULL, and its implementation is left for future.

Also, this patch fixes failure of LTP test socketcall02, if executed on some
Qemu emulated sywstems (uer mode).

Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-10-21 15:19:40 +03:00
Aleksandar Markovic
19f59bcef9 linux-user: Add support for adjtimex() syscall
This patch implements Qemu user mode adjtimex() syscall support.

Syscall adjtimex() reads and optionally sets parameters for a clock
adjustment algorithm used in network synchonization or similar scenarios.

Its declaration is:

int adjtimex(struct timex *buf);

The correspondent source code in the Linux kernel is at kernel/time.c,
line 206.

The Qemu implementation is based on invocation of host's adjtimex(), and
its key part is in the "TARGET_NR_adjtimex" case segment of the the main
switch statement of the function do_syscall(), in linux-user/syscalls.c. All
necessary conversions of the data structures from target to host and from
host to target are covered. Two new functions, target_to_host_timex() and
host_to_target_timex(), are provided for the purpose of such conversions.
For that purpose, the support for related structure "timex" had tp be added
to the file linux-user/syscall_defs.h, based on its definition in Linux
kernel. Also, the relevant support for "-strace" Qemu option is included
in files linux-user/strace.c and linux-user/strace.list.

This patch also fixes failures of LTP tests adjtimex01 and adjtimex02, if
executed in Qemu user mode.

Signed-off-by: Aleksandar Rikalo <aleksandar.rikalo@imgtec.com>
Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-10-21 15:19:39 +03:00
Aleksandar Markovic
8a8001b147 linux-user: Fix structure target_flock definition for Mips
Structure flock is defined for Mips in a way different from any
other platform. For reference, see Linux kernel source code files:

arch/mips/include/uapi/asm/fcntl.h, line 63 (for Mips)
include/uapi/asm-generic/fcntl.h, line 195 (for all other platforms)

This patch fix this problem, by amending structure target_flock,
for Mips only.

Besides, this patch fixes LTP tests fcntl11, fcntl17, fcntl19, fcntl20,
and fcntl21, which are currently failing, if executed in Qemu user mode
for Mips platforms.

Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Acked-by: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2016-09-23 07:07:33 +01:00
Aleksandar Markovic
3a87a954c8 linux-user: Fix TARGET_F_GETOWN definition for Mips
For some reason, Qemu's TARGET_F_GETOWN constant for Mips does not
match the correct value of correspondent F_GETOWN. This patch fixes
this problem.

For reference, see Mips' F_GETOWN definition in Linux kernel at
arch/mips/include/uapi/asm/fcntl.h#L44.

This patch also fixes some fcntl()-related LTP tests for Qemu
user mode for Mips.

Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com>
Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Acked-by: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2016-09-23 07:07:32 +01:00
Aleksandar Markovic
e1be160691 linux-user: Fix TARGET_SIOCATMARK definition for Mips
This patch fixes wrong definition of TARGET_SIOCATMARK for mips,
alpha, and sh4.

The current definition is:

  #define SIOCATMARK      0x8905

while the correct definition is:

  #define SIOCATMARK      TARGET_IOR('s', 7, int)

See Linux kernel source file arch/mips/include/uapi/asm/sockios.h#L19
for reference.

This patch also a fixes LTP test failure for test sockioctl01, for
mips, alpha, and sh4.

Signed-off-by: Aleksandar Rikalo <aleksandar.rikalo@imgtec.com>
Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Acked-by: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2016-09-23 07:07:31 +01:00
Peter Maydell
2ba7fae3bd linux-user: Check for bad event numbers in epoll_wait
The kernel checks that the maxevents parameter to epoll_wait
is non-negative and not larger than EP_MAX_EVENTS. Add this
check to our implementation, so that:
 * we fail these cases EINVAL rather than EFAULT
 * we don't pass negative or overflowing values to the
   lock_user() size calculation

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-09-21 14:25:26 +03:00
Peter Maydell
6080723102 linux-user: Implement FS_IOC_GETFLAGS and FS_IOC_SETFLAGS ioctls
Implement the FS_IOC_GETFLAGS and FS_IOC_SETFLAGS ioctls, as used
by chattr.

Note that the type information encoded in these ioctl numbers
is at odds with the actual type the kernel accesses, as discussed
in http://thread.gmane.org/gmane.linux.file-systems/80164.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-09-21 14:24:47 +03:00
Thomas Huth
d41f3c3cc7 Remove remainders of HPPA backend
The HPPA backend has been removed by the following commit:

    802b508123
    tcg-hppa: Remove tcg backend

But some small pieces of the HPPA backend still survived until
today. Since we also do not have support for a HPPA target in
QEMU, we can nowadays safely remove the remaining HPPA parts
(like the disassembler code, or the detection of HPPA in the
configure script).

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-09-15 15:32:22 +03:00
Peter Maydell
4715856a68 linux-user: Add some new blk ioctls
Add some new blk ioctls (these are 0x12,119 through
to 0x12,127). Several of these are used by mke2fs; this silences
the warnings:

mke2fs 1.42.12 (29-Aug-2014)
Unsupported ioctl: cmd=0x127b
Unsupported ioctl: cmd=0x127a
warning: Unable to get device geometry for /dev/loop5
Unsupported ioctl: cmd=0x127c
Unsupported ioctl: cmd=0x127c
Unsupported ioctl: cmd=0x1277

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-07-19 15:23:17 +03:00
Peter Maydell
884cdc48a9 linux-user: Add loop control ioctls
Add support for the /dev/loop-control ioctls:
 LOOP_CTL_ADD
 LOOP_CTL_REMOVE
 LOOP_CTL_GET_FREE

[RV: fixed to apply to new header guards]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-07-19 15:22:33 +03:00
Markus Armbruster
1b3c4fdf30 linux-user: Fix broken header guard in syscall_defs.h
Found with scripts/clean-header-guards.pl.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-07-12 16:19:16 +02:00
Laurent Vivier
fb3aabf384 linux-user: add socketcall() strace
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-26 13:17:21 +03:00
Peter Maydell
7e3b92ece0 linux-user: Support F_GETPIPE_SZ and F_SETPIPE_SZ fcntls
Support the F_GETPIPE_SZ and F_SETPIPE_SZ fcntl operations.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-06-26 13:17:21 +03:00
Peter Maydell
8efb2ed5ec linux-user: Correct signedness of target_flock l_start and l_len fields
The l_start and l_len fields in the various target_flock structures are
supposed to be '__kernel_off_t' or '__kernel_loff_t', which means they
should be signed, not unsigned. Correcting the structure definitions means
that __get_user() and __put_user() will correctly sign extend them if
the guest is using 32 bit offsets and the host is using 64 bit offsets.

This fixes failures in the LTP 'fcntl14' tests where it checks that
negative seek offsets work correctly.

We reindent the structures to drop hard tabs since we're touching 40%
of the fields anyway.

RV: long long -> abi_llong as suggested by Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-06-08 12:06:50 +03:00
Peter Maydell
a70dadc7f1 linux-user: Use both si_code and si_signo when converting siginfo_t
The siginfo_t struct includes a union. The correct way to identify
which fields of the union are relevant is complicated, because we
have to use a combination of the si_code and si_signo to figure out
which of the union's members are valid.  (Within the host kernel it
is always possible to tell, but the kernel carefully avoids giving
userspace the high 16 bits of si_code, so we don't have the
information to do this the easy way...) We therefore make our best
guess, bearing in mind that a guest can spoof most of the si_codes
via rt_sigqueueinfo() if it likes.  Once we have made our guess, we
record it in the top 16 bits of the si_code, so that tswap_siginfo()
later can use it.  tswap_siginfo() then strips these top bits out
before writing si_code to the guest (sign-extending the lower bits).

This fixes a bug where fields were sometimes wrong; in particular
the LTP kill10 test went into an infinite loop because its signal
handler got a si_pid value of 0 rather than the pid of the sending
process.

As part of this change, we switch to using __put_user() in the
tswap_siginfo code which writes out the byteswapped values to
the target memory, in case the target memory pointer is not
sufficiently aligned for the host CPU's requirements.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-06-07 16:39:08 +03:00
Peter Maydell
716f3fbef2 linux-user: x86_64: Don't use 16-bit UIDs
The 64-bit x86 syscall ABI uses 32-bit UIDs; only define
USE_UID16 for 32-bit x86.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-05-27 14:50:39 +03:00
John Paul Adrian Glaubitz
5a53dc5042 linux-user: Add SOCKOP_sendmmsg and SOCKOP_recvmmsg socket call, wire them up.
Adds the definitions for the socket calls SOCKOP_sendmmsg
and SOCKOP_recvmmsg and wires them up with the rest of the code.
The necessary function do_sendrecvmmsg() is already present in
linux-user/syscall.c. After adding these two definitions and wiring
them up, I no longer receive an error message about the
unimplemented socket calls when running "apt-get update" on Debian
unstable running on qemu with glibc_2.21 on m68k.

Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-01-11 14:54:03 +02:00
Laurent Vivier
928bed6a05 linux-user: correctly align target_epoll_event
According to comments in /usr/include/linux/eventpoll.h,
poll_event is packed only on x86_64.

And to be sure fields are correctly aligned in epoll_data,
use abi_XXX types for all of them.

Moreover, fd type is wrong: fd is int, not ulong.

This has been tested with a ppc guest on an x86_64 host:
without this patch, systemd crashes (core).

CC: Alexander Graf <agraf@suse.de>
CC: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-01-08 11:36:12 +02:00
Chen Gang
de2fdd56b1 linux-user/syscall_defs.h: Sync the latest si_code from Linux kernel
They content several new macro members, also contents TARGET_N*.

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Message-Id: <1443240605-2924-1-git-send-email-gang.chen.5i5j@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07 20:03:15 +11:00
Jonathan Neuschäfer
ee1045877a linux-user: fix cmsg conversion in case of multiple headers
Currently, __target_cmsg_nxthdr compares a pointer derived from
target_cmsg against the msg_control field of target_msgh (through
subtraction).  This failed for me when emulating i386 code under x86_64,
because pointers in the host address space and pointers in the guest
address space were not the same.  This patch passes the initial value of
target_cmsg into __target_cmsg_nxthdr.

I found and fixed two more related bugs:
- __target_cmsg_nxthdr now returns the new cmsg pointer instead of the
  old one.
- tgt_space (in host_to_target_cmsg) doesn't count "sizeof (struct
  target_cmsghdr)" twice anymore.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2015-09-28 16:39:43 +03:00
Chen Gang
b16189b222 linux-user: Support tilegx architecture in linux-user
Add main working flow feature, system call processing feature, and elf64
tilegx binary loading feature, based on Linux kernel tilegx 64-bit
implementation.

[rth: Moved all of the implementation of atomic instructions to a later patch.]

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <BLU436-SMTP938552D42808AA60634582B9660@phx.gbl>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-15 07:41:19 -07:00
Veres Lajos
67cc32ebfd typofixes - v4
Signed-off-by: Veres Lajos <vlajos@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-09-11 10:45:43 +03:00
Leon Alrae
1ab2aea248 linux-user: correct stat structure in MIPS N32
Simple "hello world" MIPS N32 userland program crashes with segfault due to
incorrectly defined stat structure in QEMU.

Correct "target_stat" definition to match kernel's "stat64" as in MIPS N32
there are only plain "stat" syscalls using 64-bit structure.

Reported-by: Daniel Sanders <daniel.sanders@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Tested-by: Daniel Sanders <daniel.sanders@imgtec.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
2015-02-13 14:11:29 +00:00