libs/libatomicops/patches/001-mips.patch

   1 diff --git a/src/atomic_ops.h b/src/atomic_ops.h
   2 index c23f30b..791b360 100755
   3 --- a/src/atomic_ops.h
   4 +++ b/src/atomic_ops.h
   5 @@ -220,6 +220,9 @@
   6  # if defined(__cris__) || defined(CRIS)
   7  #   include "atomic_ops/sysdeps/gcc/cris.h"
   8  # endif
   9 +# if defined(__mips__)
  10 +#   include "atomic_ops/sysdeps/gcc/mips.h"
  11 +# endif
  12  #endif /* __GNUC__ && !AO_USE_PTHREAD_DEFS */
  13
  14  #if defined(__INTEL_COMPILER) && !defined(AO_USE_PTHREAD_DEFS)
  15 diff --git a/src/atomic_ops/sysdeps/Makefile.am b/src/atomic_ops/sysdeps/Makefile.am
  16 index 74122b4..d6737c0 100644
  17 --- a/src/atomic_ops/sysdeps/Makefile.am
  18 +++ b/src/atomic_ops/sysdeps/Makefile.am
  19 @@ -29,6 +29,7 @@ nobase_sysdep_HEADERS= generic_pthread.h \
  20           gcc/powerpc.h gcc/sparc.h \
  21           gcc/hppa.h gcc/m68k.h gcc/s390.h \
  22           gcc/ia64.h gcc/x86_64.h gcc/cris.h \
  23 +         gcc/mips.h \
  24         \
  25           icc/ia64.h \
  26         \
  27 diff --git a/src/atomic_ops/sysdeps/gcc/mips.h b/src/atomic_ops/sysdeps/gcc/mips.h
  28 new file mode 100644
  29 index 0000000..e7f3a5d
  30 --- /dev/null
  31 +++ b/src/atomic_ops/sysdeps/gcc/mips.h
  32 @@ -0,0 +1,89 @@
  33 +/*
  34 + * Copyright (c) 2005  Thiemo Seufer <ths@networkno.de>
  35 + * Copyright (c) 2007  Zhang Le <r0bertz@gentoo.org>
  36 + *
  37 + * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
  38 + * OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
  39 + *
  40 + * Permission is hereby granted to use or copy this program
  41 + * for any purpose,  provided the above notices are retained on all copies.
  42 + * Permission to modify the code and to distribute modified code is granted,
  43 + * provided the above notices are retained, and a notice that the code was
  44 + * modified is included with the above copyright notice.
  45 + */
  46 +
  47 +#include "../all_aligned_atomic_load_store.h"
  48 +#include "../test_and_set_t_is_ao_t.h"
  49 +
  50 +/* Data dependence does not imply read ordering.  */
  51 +#define AO_NO_DD_ORDERING
  52 +
  53 +AO_INLINE void
  54 +AO_nop_full()
  55 +{
  56 +  __asm__ __volatile__(
  57 +      "       .set push           \n"
  58 +      "       .set mips3          \n"
  59 +      "       .set noreorder      \n"
  60 +      "       .set nomacro        \n"
  61 +      "       sync                \n"
  62 +      "       .set pop              "
  63 +      : : : "memory");
  64 +}
  65 +
  66 +#define AO_HAVE_nop_full
  67 +
  68 +AO_INLINE int
  69 +AO_compare_and_swap(volatile AO_t *addr, AO_t old, AO_t new_val)
  70 +{
  71 +  register int was_equal = 0;
  72 +  register int temp;
  73 +
  74 +  __asm__ __volatile__(
  75 +      "       .set push           \n"
  76 +      "       .set mips3          \n"
  77 +      "       .set noreorder      \n"
  78 +      "       .set nomacro        \n"
  79 +      "1:     ll      %0, %1      \n"
  80 +      "       bne     %0, %4, 2f  \n"
  81 +      "       move    %0, %3      \n"
  82 +      "       sc      %0, %1      \n"
  83 +      "       .set pop            \n"
  84 +      "       beqz    %0, 1b      \n"
  85 +      "       li      %2, 1       \n"
  86 +      "2:                           "
  87 +      : "=&r" (temp), "+R" (*addr), "+r" (was_equal)
  88 +      : "r" (new_val), "r" (old)
  89 +      : "memory");
  90 +  return was_equal;
  91 +}
  92 +
  93 +#define AO_HAVE_compare_and_swap
  94 +
  95 +AO_INLINE AO_t
  96 +AO_fetch_and_add_full (volatile AO_t *p, AO_t incr)
  97 +{
  98 +  AO_t result, temp;
  99 +  __asm__ __volatile__(
 100 +      "       .set push           \n"
 101 +      "       .set mips3          \n"
 102 +      "       .set noreorder      \n"
 103 +      "       .set nomacro        \n"
 104 +      "1:     ll      %1, %2      \n"
 105 +      "       addu    %0, %1, %3  \n"
 106 +      "       sc      %0, %2      \n"
 107 +      "       beqz    %0, 1b      \n"
 108 +      "       addu    %0, %1, %3  \n"
 109 +      "       sync                \n"
 110 +      "       .set pop            \n"
 111 +      : "=&r" (result), "=&r" (temp), "=m" (*p)
 112 +      : "r" (incr), "m" (*p)
 113 +      : "memory");
 114 +  return result;
 115 +}
 116 +
 117 +#define AO_HAVE_fetch_and_add_full
 118 +
 119 +/*
 120 + * FIXME: fetch_and_add_full implemented, any others?
 121 + */