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  1. 31 10月, 2018 1 次提交
    • M
      linux-user/flatload: fix initial stack pointer alignment · 5c76d652
      由 Max Filippov 提交于 
      Stack pointer alignment code incorrectly adds stack_size to sp instead
of subtracting it. It also does not take flat_argvp_envp_on_stack() into
account when calculating stack_size. This results in initial stack
pointer misalignment with certain set of command line arguments and
environment variables and correct alignment for the same binary with a
different set of arguments. This misalignment causes failures in the
following tests in the testsuite of gcc built for xtensa uclinux:

  gcc.dg/torture/vshuf-v64qi.c
  gcc.dg/torture/vshuf-v8sf.c
  gcc.dg/torture/vshuf-v8si.c
Reviewed-by: NLaurent Vivier <lvivier@redhat.com>
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
      5c76d652
  3. 20 10月, 2018 1 次提交
  5. 11 6月, 2018 1 次提交
  7. 21 9月, 2016 1 次提交
  9. 12 7月, 2016 1 次提交
  11. 17 6月, 2016 1 次提交
  13. 11 3月, 2016 1 次提交
    • D
      osdep: add wrappers for socket functions · a2d96af4
      由 Daniel P. Berrange 提交于 
      The windows socket functions look identical to the normal POSIX
sockets functions, but instead of setting errno, the caller needs
to call WSAGetLastError(). QEMU has tried to deal with this
incompatibility by defining a socket_error() method that callers
must use that abstracts the difference between WSAGetLastError()
and errno.

This approach is somewhat error prone though - many callers of
the sockets functions are just using errno directly because it
is easy to forget the need use a QEMU specific wrapper. It is
not always immediately obvious that a particular function will
in fact call into Windows sockets functions, so the dev may not
even realize they need to use socket_error().

This introduces an alternative approach to portability inspired
by the way GNULIB fixes portability problems. We use a macro to
redefine the original socket function names to refer to a QEMU
wrapper function. The wrapper function calls the original Win32
sockets method and then sets errno from the WSAGetLastError()
value.

Thus all code can simply call the normal POSIX sockets APIs are
have standard errno reporting on error, even on Windows. This
makes the socket_error() method obsolete.

We also bring closesocket & ioctlsocket into this approach. Even
though they are non-standard Win32 names, we can't wrap the normal
close/ioctl methods since there's no reliable way to distinguish
between a file descriptor and HANDLE in Win32.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
      a2d96af4
  15. 29 1月, 2016 1 次提交
  17. 28 9月, 2015 1 次提交
  19. 10 1月, 2014 1 次提交
  21. 29 11月, 2013 1 次提交
  23. 15 8月, 2012 1 次提交
  25. 02 12月, 2011 1 次提交
  27. 22 6月, 2011 2 次提交
  29. 09 2月, 2011 2 次提交
  31. 18 9月, 2010 1 次提交
  33. 16 6月, 2010 1 次提交
    • P
      Usermode exec-stack fix · 97374d38
      由 Paul Brook 提交于 
      When loading a shared library that requires an executable stack,
glibc uses the mprotext PROT_GROWSDOWN flag to achieve this.
We don't support PROT_GROWSDOWN.
Add a special case to handle changing the stack permissions in this way.
Signed-off-by: NPaul Brook <paul@codesourcery.com>
      97374d38
  35. 29 5月, 2010 1 次提交
  37. 17 7月, 2009 1 次提交
  39. 14 5月, 2009 1 次提交
  41. 06 1月, 2009 1 次提交
  43. 26 10月, 2008 1 次提交
  45. 16 7月, 2008 1 次提交
  47. 16 11月, 2007 1 次提交
  49. 11 11月, 2007 1 次提交
  51. 15 10月, 2007 1 次提交
  53. 17 9月, 2007 2 次提交
  55. 15 4月, 2007 1 次提交
  57. 16 3月, 2007 1 次提交
  59. 27 12月, 2006 1 次提交
  61. 18 6月, 2006 1 次提交
  63. 11 6月, 2006 1 次提交