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  1. 24 10月, 2016 30 次提交
  3. 23 10月, 2016 2 次提交
  5. 21 10月, 2016 8 次提交
    • P
      Merge remote-tracking branch 'remotes/riku/tags/pull-linux-user-20160921' into staging · b49e452f
      由 Peter Maydell 提交于 
      Linux-user changes, mostly bugfixes and adding support for some
new syscalls and some obscure syscalls as well. Includes some
missed patches from earlier rounds, and dropping unicore32 target.

v2: fix the syslog patch and test build with clang-3.8
v3: drop ustat patch

# gpg: Signature made Fri 21 Oct 2016 13:38:06 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-20160921: (21 commits)
  linux-user: disable unicore32 linux-user build
  linux-user: added support for pwritev() system call.
  linux-user: added support for preadv() system call.
  linux-user: Fix fadvise64() syscall support for Mips32
  linux-user: Redirect termbits.h for Mips64 to termbits.h for Mips32
  linux-user: Update ioctls definitions for Mips32
  linux-user: Update mips_syscall_args[] array in main.c
  linux-user: Add support for syncfs() syscall
  linux-user: Add support for clock_adjtime() syscall
  linux-user: Fix definition of target_sigevent for 32-bit guests
  linux-user: use libc wrapper instead of direct mremap syscall
  linux-user: Don't use alloca() for epoll_wait's epoll event array
  linux-user: add RTA_PRIORITY in netlink
  linux-user: add kcmp() syscall
  linux-user: sparc64: Use correct target SHMLBA in shmat()
  linux-user: Remove a duplicate item from strace.list
  linux-user: Fix syslog() syscall support
  linux-user: Fix socketcall() syscall support
  linux-user: Fix msgrcv() and msgsnd() syscalls support
  linux-user: Fix mq_open() syscall support
  ...
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
      b49e452f
    • R
      linux-user: disable unicore32 linux-user build · 5e2b40f7
      由 Riku Voipio 提交于 
      In order to cleanup linux-user, we need support for most relatively
modern syscalls. unicore32 lacks support for syscalls like
epoll_pwait, preventing cleaning up the CONFIG_EPOLL mess.

This patch can be reverted when unicore32 starts either supporting
the syscalls as defined in mainline kernel, or the oldabi interface
gains support for syscalls supported since at kernel 2.6.19 / glibc 2.6

Cc: MPRC <zhangheng@mprc.pku.edu.cn>
Cc: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
      5e2b40f7
    • D
      linux-user: added support for pwritev() system call. · f8d00fba
      由 Dejan Jovicevic 提交于 
      This system call performs the same task as the writev() system call,
with the exception of having the fourth argument, offset, which
specifes the file offset at which the input operation is to be performed.
Because of this, the pwritev() implementation is based on the writev()
implementation in linux-user mode.

But, since pwritev() is implemented in the kernel as a 5-argument syscall,
5 arguments are needed to be handled as input and passed to the host
syscall.

The pos_l and pos_h argument of the safe_pwritev() are of type unsigned
long, which can be of different sizes on different platforms. The input
arguments are converted to the appropriate host size when passed to
safe_pwritev().
Signed-off-by: NDejan Jovicevic <dejan.jovicevic@rt-rk.com>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
      f8d00fba
    • D
      linux-user: added support for preadv() system call. · 0f26386c
      由 Dejan Jovicevic 提交于 
      This system call performs the same task as the readv() system call,
with the exception of having the fourth argument, offset, which
specifes the file offset at which the input operation is to be performed.
Because of this, the preadv() implementation is based on the readv()
implementation in linux-user mode.

But, since preadv() is implemented in the kernel as a 5-argument syscall,
5 arguments are needed to be handled as input and passed to the host
syscall.

The pos_l and pos_h argument of the safe_preadv() are of type unsigned
long, which can be of different sizes on different platforms. The input
arguments are converted to the appropriate host size when passed to
safe_preadv().
Signed-off-by: NDejan Jovicevic <dejan.jovicevic@rt-rk.com>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
      0f26386c
    • A
      linux-user: Fix fadvise64() syscall support for Mips32 · 2f2bd444
      由 Aleksandar Markovic 提交于 
      By looking at the file arch/mips/kernel/scall32-o32.S in Linux
kernel, it can be deduced that, for Mips32 platform, syscall
corresponding to number _NR_fadvise64 as defined in kernel file
arch/mips/include/uapi/asm/unistd.h translates to kernel function
sys_fadvise64_64, and that argument layout for this system call is
as follows:

              0             32 0             32
             +----------------+----------------+
      (arg1) |       fd       |     __pad      | (arg2)
             +----------------+----------------+
      (arg3) |             buffer              | (arg4)
             +----------------+----------------+
      (arg5) |               len               | (arg6)
             +----------------+----------------+
      (arg7) |     advise     |    not used    | (arg8)
             +----------------+----------------+

The same argument layout can be deduced from glibc code, and
relevant commit messages in linux kernel and glibc.

The fix is to change TARGET_NR_fadvise64 to TARGET_NR_fadvise64_64
in Mips32 syscall numbers table. Array mips_syscall_args[] in
linux-user/main.c also already have "fadvise64_64" (and not
"fadvise64") in corresponding place for the syscall number in
question, so no change for linux-user/main.c.

This patch also fixes the failure LTP test posix_fadvise03, if
executed on Qemu-emulated Mips32 platform (user mode).
Signed-off-by: NAleksandar Rikalo <aleksandar.rikalo@imgtec.com>
Signed-off-by: NMiroslav Tisma <miroslav.tisma@imgtec.com>
Signed-off-by: NAleksandar Markovic <aleksandar.markovic@imgtec.com>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
      2f2bd444
    • A
      linux-user: Redirect termbits.h for Mips64 to termbits.h for Mips32 · 6e8b33d8
      由 Aleksandar Markovic 提交于 
      linux-user/mips64/termbits.h and linux-user/mips/termbits.h
originate from the same files in Linux kernel. There is no plan
to split original headers in Linux kernel into Mips32 and Mips64
versions any time soon. Therefore, it is better not to have
separate Mips32 and Mips64 variants in Qemu.

This patch makes these two files effectively the same, allowing the
mainenance by changing only a single file. (This is already done in
the same fashion for some other headers in same directories.)
Signed-off-by: NAleksandar Markovic <aleksandar.markovic@imgtec.com>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
      6e8b33d8
    • A
      linux-user: Update ioctls definitions for Mips32 · af83b52e
      由 Aleksandar Markovic 提交于 
      Update linux-user/mips/termbits.h with ioctl definitions from kernel
file arch/mips/include/uapi/asm/ioctls.h.
Signed-off-by: NAleksandar Markovic <aleksandar.markovic@imgtec.com>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
      af83b52e
    • A
      linux-user: Update mips_syscall_args[] array in main.c · 2e6eeb67
      由 Aleksandar Markovic 提交于 
      Array mips_syscall_args[] determines number of arguments for each
syscall on Mips32. It wasn't updated with newer syscalls. Also,
preadv and pwritev have 5 arguments, not 6.
Signed-off-by: NAleksandar Markovic <aleksandar.markovic@imgtec.com>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
      2e6eeb67