obsolete-buildroot/sources/i386-gcc-soft-float.patch

   1 diff -urN gcc-3.3.2-orig/gcc/config/i386/i386.h gcc-3.3.2/gcc/config/i386/i386.h
   2 --- gcc-3.3.2-orig/gcc/config/i386/i386.h       2003-06-25 16:18:31.000000000 -0500
   3 +++ gcc-3.3.2/gcc/config/i386/i386.h    2003-10-22 01:46:57.000000000 -0500
   4 @@ -653,6 +653,7 @@
   5  /* Define for XFmode or TFmode extended real floating point support.
   6     The XFmode is specified by i386 ABI, while TFmode may be faster
   7     due to alignment and simplifications in the address calculations.  */
   8 +#if 0
   9  #define LONG_DOUBLE_TYPE_SIZE (TARGET_128BIT_LONG_DOUBLE ? 128 : 96)
  10  #define MAX_LONG_DOUBLE_TYPE_SIZE 128
  11  #ifdef __x86_64__
  12 @@ -660,6 +661,17 @@
  13  #else
  14  #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 96
  15  #endif
  16 +#else
  17 +         /* Set up for x86 soft float with 64-bit long doubles, since that's
  18 +          * all the soft float emulation supports. */
  19 +#define LONG_DOUBLE_TYPE_SIZE (TARGET_128BIT_LONG_DOUBLE ? 128 : (TARGET_80387 ? 96 : 64))
  20 +#define MAX_LONG_DOUBLE_TYPE_SIZE 128
  21 +#ifdef __x86_64__
  22 +#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
  23 +#else
  24 +#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE (TARGET_80387 ? 96 : 64)
  25 +#endif
  26 +#endif
  27
  28  /* Set the value of FLT_EVAL_METHOD in float.h.  When using only the
  29     FPU, assume that the fpcw is set to extended precision; when using
  30 diff -urN gcc-3.3.2-orig/gcc/config/t-linux gcc-3.3.2/gcc/config/t-linux
  31 --- gcc-3.3.2-orig/gcc/config/t-linux-uclibc    2003-06-04 11:56:11.000000000 -0500
  32 +++ gcc-3.3.2/gcc/config/t-linux-uclibc 2003-10-22 01:46:39.000000000 -0500
  33 @@ -21,3 +21,28 @@
  34  LIB2ADDEH = $(srcdir)/unwind-dw2.c $(srcdir)/unwind-dw2-fde.c \
  35    $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
  36  LIB2ADDEHDEP = unwind.inc unwind-dw2-fde.h
  37 +
  38 +##############################################
  39 +# We want fine grained libraries, so use the new code to build the
  40 +# floating point emulation libraries.
  41 +FPBIT = fp-bit.c
  42 +DPBIT = dp-bit.c
  43 +
  44 +#LIB2FUNCS_EXTRA = xp-bit.c
  45 +
  46 +dp-bit.c: $(srcdir)/config/fp-bit.c
  47 +       echo '#ifdef __LITTLE_ENDIAN__' > dp-bit.c
  48 +       echo '#define FLOAT_BIT_ORDER_MISMATCH' >>dp-bit.c
  49 +       echo '#endif'           >> dp-bit.c
  50 +       cat $(srcdir)/config/fp-bit.c >> dp-bit.c
  51 +
  52 +fp-bit.c: $(srcdir)/config/fp-bit.c
  53 +       echo '#define FLOAT' > fp-bit.c
  54 +       echo '#ifdef __LITTLE_ENDIAN__' >> fp-bit.c
  55 +       echo '#define FLOAT_BIT_ORDER_MISMATCH' >>fp-bit.c
  56 +       echo '#endif'           >> fp-bit.c
  57 +       cat $(srcdir)/config/fp-bit.c >> fp-bit.c
  58 +
  59 +#MULTILIB_OPTIONS = msoft-float
  60 +#MULTILIB_DIRNAMES = soft-float
  61 +