1 Fixes bug 22811465 - math:exp() throws badarith exception on SPARC

     2 Fix was recommended by upstream Erlang/OTP team and is being applied to trunk.

     3 

     4 --- otp_src_17.5-ORIG/erts/emulator/sys/ose/sys_float.c	2016-04-19 13:16:27.190731082 +0100

     5 +++ otp_src_17.5/erts/emulator/sys/ose/sys_float.c	2016-04-19 13:18:30.669678699 +0100

     6 @@ -835,10 +835,5 @@

     7  int

     8  matherr(struct exception *exc)

     9  {

    10 -#if !defined(NO_FPE_SIGNALS)

    11 -    volatile unsigned long *fpexnp = erts_get_current_fp_exception();

    12 -    if (fpexnp != NULL)

    13 -	*fpexnp = (unsigned long)__builtin_return_address(0);

    14 -#endif

    15      return 1;

    16  }

    17 --- otp_src_17.5-ORIG/erts/emulator/sys/unix/sys_float.c	2016-04-19 13:16:27.187000925 +0100

    18 +++ otp_src_17.5/erts/emulator/sys/unix/sys_float.c	2016-04-19 13:18:22.503799817 +0100

    19 @@ -837,11 +837,6 @@

    20  int

    21  matherr(struct exception *exc)

    22  {

    23 -#if !defined(NO_FPE_SIGNALS)

    24 -    volatile unsigned long *fpexnp = erts_get_current_fp_exception();

    25 -    if (fpexnp != NULL)

    26 -	*fpexnp = (unsigned long)__builtin_return_address(0);

    27 -#endif

    28      return 1;

    29  }

    30  

    31 --- otp_src_17.5-ORIG/erts/emulator/sys/win32/sys_float.c	2016-04-19 13:16:27.187779815 +0100

    32 +++ otp_src_17.5/erts/emulator/sys/win32/sys_float.c	2016-04-19 13:19:05.229444947 +0100

    33 @@ -138,8 +138,7 @@

    34  int

    35  matherr(struct _exception *exc)

    36  {

    37 -    erl_fp_exception = 1;

    38 -    DEBUGF(("FP exception (matherr) (0x%x) (%d)\n", exc->type, erl_fp_exception));

    39 +    DEBUGF(("FP exception (matherr) (0x%x)\n", exc->type));

    40      return 1;

    41  }

    42