riscv/riscv.ac

   1 AC_ARG_ENABLE([fpu], AS_HELP_STRING([--disable-fpu], [Disable floating-point]))
   2 AS_IF([test "x$enable_fpu" != "xno"], [
   3   AC_DEFINE([RISCV_ENABLE_FPU],,[Define if floating-point instructions are supported])
   4 ])
   5
   6 AC_ARG_ENABLE([64bit], AS_HELP_STRING([--disable-64bit], [Disable 64-bit mode]))
   7 AS_IF([test "x$enable_64bit" != "xno"], [
   8   AC_DEFINE([RISCV_ENABLE_64BIT],,[Define if 64-bit mode is supported])
   9 ])
  10
  11 AC_ARG_ENABLE([rvc], AS_HELP_STRING([--disable-rvc], [Disable instruction compression]))
  12 AS_IF([test "x$enable_rvc" != "xno"], [
  13   AC_DEFINE([RISCV_ENABLE_RVC],,[Define if instruction compression is supported])
  14 ])
  15
  16 libopc=`dirname \`which riscv-gcc\``/../`$ac_config_guess`/riscv/lib/libopcodes.a
  17 AC_CHECK_FILES([$libopc],[have_libopcodes="yes"],[have_libopcodes="no"])
  18
  19 AC_SEARCH_LIBS([bfd_init],[bfd],[],[have_libopcodes="no"])
  20
  21 AS_IF([test "$have_libopcodes" = "no"],[
  22   AC_MSG_WARN([Could not find opcodes library])
  23   AC_MSG_WARN([Build will not include disassembly support])
  24 ],[
  25   LIBS="$libopc $LIBS"
  26   AC_DEFINE([RISCV_HAVE_LIBOPCODES],,[Define if libopcodes exists])
  27 ])