Initial revision

From-SVN: r125

gcc/config/i386/sco.h

+/* Definitions for Intel 386 running SCO Unix System V.  */
+
+
+/* Mostly it's like AT&T Unix System V. */
+
+#include "i386v.h"
+
+/* Use crt1.o as a startup file and crtn.o as a closing file.  */
+
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC  "%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}"
+
+#define ENDFILE_SPEC "crtn.o%s"
+
+/* Library spec, including SCO international language support. */
+
+#undef LIB_SPEC
+#define LIB_SPEC \
+ "%{p:-L/usr/lib/libp}%{pg:-L/usr/lib/libp} %{scointl:libintl.a%s} -lc"
+
+/* Specify predefined symbols in preprocessor.  */
+
+#undef CPP_PREDEFINES
+#define CPP_PREDEFINES "-Dunix -Di386 -DM_UNIX -DM_I386 -DM_COFF -DM_WORDSWAP"
+
+#define CPP_SPEC "%{scointl:-DM_INTERNAT}"
+
+#if 0 /* Not yet certain whether this is needed.  */
+/* If no 387, use the general regs to return floating values,
+   since this system does not emulate the 80387.  */
+
+#define VALUE_REGNO(MODE) \
+  ((TARGET_80387 && ((MODE) == SFmode || (MODE) == DFmode))
+   ? FIRST_FLOAT_REG : 0)
+
+#define HARD_REGNO_MODE_OK(REGNO, MODE) \
+  ((REGNO) < 2 ? 1							\
+   : (REGNO) < 4 ? 1							\
+   : (REGNO) >= 8 ? ((GET_MODE_CLASS (MODE) == MODE_FLOAT		\
+		      || GET_MODE_CLASS (MODE) == MODE_COMPLEX_FLOAT)	\
+		     && TARGET_80387					\
+		     && GET_MODE_UNIT_SIZE (MODE) <= 8)			\
+   : (MODE) != QImode)
+#endif