diff options
Diffstat (limited to 'libpthread/linuxthreads')
| -rw-r--r-- | libpthread/linuxthreads/sysdeps/v850/pt-machine.h | 46 | ||||
| -rw-r--r-- | libpthread/linuxthreads/sysdeps/v850/sigcontextinfo.h | 17 | 
2 files changed, 63 insertions, 0 deletions
| diff --git a/libpthread/linuxthreads/sysdeps/v850/pt-machine.h b/libpthread/linuxthreads/sysdeps/v850/pt-machine.h new file mode 100644 index 000000000..a28360c58 --- /dev/null +++ b/libpthread/linuxthreads/sysdeps/v850/pt-machine.h @@ -0,0 +1,46 @@ +/* + * sysdeps/v850/pt-machine.h -- v850-specific pthread definitions + * + *  Copyright (C) 2002  NEC Electronics Corporation + *  Copyright (C) 2002  Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU General + * Public License.  See the file COPYING in the main directory of this + * archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + */ + +#ifndef PT_EI +# define PT_EI extern inline +#endif + +/* Get some notion of the current stack.  Need not be exactly the top +   of the stack, just something somewhere in the current frame.  */ +#define CURRENT_STACK_FRAME  __stack_pointer +register char *__stack_pointer __asm__ ("sp"); + +#define HAS_COMPARE_AND_SWAP + +/* Atomically:  If *PTR == OLD, set *PTR to NEW and return true, +   otherwise do nothing and return false.  */ +PT_EI int +__compare_and_swap (long *ptr, long old, long new) +{ +  unsigned long psw; + +  /* disable interrupts  */ +  __asm__ __volatile__ ("stsr psw, %0; di" : "=&r" (psw)); + +  if (likely (*ptr == old)) +    { +      *ptr = new; +      __asm__ __volatile__ ("ldsr %0, psw" :: "r" (psw)); /* re-enable */ +      return 1; +    } +  else +    { +      __asm__ __volatile__ ("ldsr %0, psw" :: "r" (psw)); /* re-enable */ +      return 0; +    } +} diff --git a/libpthread/linuxthreads/sysdeps/v850/sigcontextinfo.h b/libpthread/linuxthreads/sysdeps/v850/sigcontextinfo.h new file mode 100644 index 000000000..7587e9126 --- /dev/null +++ b/libpthread/linuxthreads/sysdeps/v850/sigcontextinfo.h @@ -0,0 +1,17 @@ +/* + * sysdeps/v850/sigcontextinfo.h -- v850-specific pthread signal definitions + * + *  Copyright (C) 2002  NEC Electronics Corporation + *  Copyright (C) 2002  Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU General + * Public License.  See the file COPYING in the main directory of this + * archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + */ + +#include <signal.h> + +#define SIGCONTEXT struct sigcontext * +#define SIGCONTEXT_EXTRA_ARGS | 
