[Qemu-devel] [Bug 1065325] Re: qemu-system-arm hangs on SIGUSR1 on OS X 10.8.2

[Oliver]

Thank you for all the help.  I have made a lot of progress.  I think
there might be a bug lm3s811 device, but I will look into that and log a
bug if I find it.  As usual with these problems, it was not just one
thing.

The TI make files for using gcc produced bad code (I hand check by looking at 
the assembly files).
The FreeRTOS build was cause crashes due to other bugs
I think the lm3s811 might have a bug (with the display) which was what I was 
focusing on.

Thank you for everyone who responded.  I think this bug can be marked
closed.

Oliver

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1065325

Title:
  qemu-system-arm hangs on SIGUSR1 on OS X 10.8.2

Status in QEMU:
  New

Bug description:
  I built the latest version of QEMU

  commit b4ae3cfa57b8c1bdbbd7b7d420971e9171203ade
  Date:   Mon Oct 1 12:34:37 2012 +1000

  My system is:
  Darwin localhost 12.2.0 Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 
2012; root:xnu-2050.18.24~1/RELEASE_X86_64 x86_64

  localhost:qemu oliverks$ gcc -v
  Using built-in specs.
  Target: i686-apple-darwin11
  Configured with: 
/private/var/tmp/llvmgcc42/llvmgcc42-2336.11~28/src/configure 
--disable-checking --enable-werror 
--prefix=/Applications/Xcode.app/Contents/Developer/usr/llvm-gcc-4.2 
--mandir=/share/man --enable-languages=c,objc,c++,obj-c++ 
--program-prefix=llvm- --program-transform-name=/^[cg][^.-]*$/s/$/-4.2/ 
--with-slibdir=/usr/lib --build=i686-apple-darwin11 
--enable-llvm=/private/var/tmp/llvmgcc42/llvmgcc42-2336.11~28/dst-llvmCore/Developer/usr/local
 --program-prefix=i686-apple-darwin11- --host=x86_64-apple-darwin11 
--target=i686-apple-darwin11 --with-gxx-include-dir=/usr/include/c++/4.2.1
  Thread model: posix
  gcc version 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.11.00)

  Shortly after start up I freeze.  I am running the command line

  ./arm-softmmu/qemu-system-arm -M lm3s811evb -kernel
  ../FreeRTOSV7.2.0/FreeRTOS/Demo/CORTEX_LM3S811_GCC/gcc/RTOSDemo.axf

  The hang appears to occur due to this signal being sent

  static void qemu_tcg_init_cpu_signals(void)
  {
      sigset_t set;
      struct sigaction sigact;

      memset(&sigact, 0, sizeof(sigact));
      sigact.sa_handler = cpu_signal;
      sigaction(SIG_IPI, &sigact, NULL); // <-- Signal that hangs system

      sigemptyset(&set);
      sigaddset(&set, SIG_IPI);
      pthread_sigmask(SIG_UNBLOCK, &set, NULL);
  }

  Oliver

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1065325/+subscriptions