1. 23 3月, 2016 1 次提交
  2. 05 2月, 2016 1 次提交
  3. 24 2月, 2013 1 次提交
    • P
      Replace all setjmp()/longjmp() with sigsetjmp()/siglongjmp() · 6ab7e546
      Peter Maydell 提交于
      The setjmp() function doesn't specify whether signal masks are saved and
      restored; on Linux they are not, but on BSD (including MacOSX) they are.
      We want to have consistent behaviour across platforms, so we should
      always use "don't save/restore signal mask" (this is also generally
      going to be faster). This also works around a bug in MacOSX where the
      signal-restoration on longjmp() affects the signal mask for a completely
      different thread, not just the mask for the thread which did the longjmp.
      The most visible effect of this was that ctrl-C was ignored on MacOSX
      because the CPU thread did a longjmp which resulted in its signal mask
      being applied to every thread, so that all threads had SIGINT and SIGTERM
      blocked.
      
      The POSIX-sanctioned portable way to do a jump without affecting signal
      masks is to siglongjmp() to a sigjmp_buf which was created by calling
      sigsetjmp() with a zero savemask parameter, so change all uses of
      setjmp()/longjmp() accordingly. [Technically POSIX allows sigsetjmp(buf, 0)
      to save the signal mask; however the following siglongjmp() must not
      restore the signal mask, so the pair can be effectively considered as
      "sigjmp/longjmp which don't touch the mask".]
      
      For Windows we provide a trivial sigsetjmp/siglongjmp in terms of
      setjmp/longjmp -- this is OK because no user will ever pass a non-zero
      savemask.
      
      The setjmp() uses in tests/tcg/test-i386.c and tests/tcg/linux-test.c
      are left untouched because these are self-contained singlethreaded
      test programs intended to be run under QEMU's Linux emulation, so they
      have neither the portability nor the multithreading issues to deal with.
      Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
      Reviewed-by: NRichard Henderson <rth@twiddle.net>
      Tested-by: NStefan Weil <sw@weilnetz.de>
      Reviewed-by: NLaszlo Ersek <lersek@redhat.com>
      Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
      6ab7e546
  4. 19 12月, 2012 1 次提交
  5. 02 12月, 2011 1 次提交
  6. 05 12月, 2010 1 次提交
    • S
      *-dis: Replace fprintf_ftype by fprintf_function (format checking) · 6e2d864e
      Stefan Weil 提交于
      This patch adds more printf format checking.
      
      Additional modifications were needed for this code change:
      
      * alpha-dis.c: The local definition of MAX conflicts with
        a previous definition from osdep.h, so add an #undef.
      
      * dis-asm.h: Add include for fprintf_function (qemu-common.h).
        The standard (now redundant) includes are removed.
      
      * mis-dis.c: The definition of ARRAY_SIZE is no longer needed
        and must be removed (conflict with previous definition from
        qemu-common.h).
      
      * sh4-dis.c: Remove some unneeded forward declarations.
      
      Cc: Blue Swirl <blauwirbel@gmail.com>
      Signed-off-by: NStefan Weil <weil@mail.berlios.de>
      Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
      6e2d864e
  7. 24 4月, 2010 1 次提交
  8. 14 4月, 2010 1 次提交
  9. 17 7月, 2009 1 次提交
  10. 01 12月, 2008 1 次提交
  11. 14 9月, 2008 1 次提交
  12. 17 9月, 2007 2 次提交
  13. 12 7月, 2007 1 次提交
  14. 07 11月, 2005 1 次提交