1 files changed, 89 insertions, 0 deletions
diff --git a/contrib/gcc/config/i386/isc.h b/contrib/gcc/config/i386/isc.h
new file mode 100644
index 0000000..cf8c5f6
--- /dev/null
+++ b/contrib/gcc/config/i386/isc.h
@@ -0,0 +1,89 @@
+/* Assembler-independent definitions for an Intel 386 running
+   Interactive Unix System V. Specifically, this is for recent versions
+   that support POSIX.  */
+
+/* Use crt1.o, not crt0.o, as a startup file, and crtn.o as a closing file. */
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC \
+  "%{!shlib:%{posix:%{pg:mcrtp1.o%s}%{!pg:%{p:mcrtp1.o%s}%{!p:crtp1.o%s}}}\
+   %{Xp:%{pg:mcrtp1.o%s}%{!pg:%{p:mcrtp1.o%s}%{!p:crtp1.o%s}}}\
+   %{!posix:%{!Xp:%{pg:mcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}\
+   %{p:-L/lib/libp} %{pg:-L/lib/libp}}}}\
+   %{shlib:%{Xp:crtp1.o%s}%{posix:crtp1.o%s}%{!posix:%{!Xp:crt1.o%s}}}\
+   crtbegin.o%s"
+  
+#define ENDFILE_SPEC "crtend.o%s crtn.o%s"
+
+/* Library spec */
+#undef LIB_SPEC
+#define LIB_SPEC "%{shlib:-lc_s} %{posix:-lcposix} %{Xp:-lcposix} -lc -lg"
+
+#undef CPP_SPEC
+#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{Xp:-D_POSIX_SOURCE}"
+
+/* ISC 2.2 uses `char' for `wchar_t'.  */
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "char"
+
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE BITS_PER_UNIT
+
+#if 0
+/* This is apparently not true: ISC versions up to 3.0, at least, use
+   the standard calling sequence in which the called function pops the
+   extra arg.  */
+/* caller has to pop the extra argument passed to functions that return
+   structures. */
+
+#undef RETURN_POPS_ARGS
+#define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE)   \
+  (TREE_CODE (FUNTYPE) == IDENTIFIER_NODE ? 0			\
+   : (TARGET_RTD						\
+      && (TYPE_ARG_TYPES (FUNTYPE) == 0				\
+	  || (TREE_VALUE (tree_last (TYPE_ARG_TYPES (FUNTYPE)))	\
+	      == void_type_node))) ? (SIZE)			\
+   : 0)
+/* On other 386 systems, the last line looks like this:
+   : (aggregate_value_p (TREE_TYPE (FUNTYPE))) ? GET_MODE_SIZE (Pmode) : 0)  */
+#endif
+
+/* Handle #pragma pack and #pragma weak.  */
+#define HANDLE_SYSV_PRAGMA
+
+/* By default, target has a 80387, uses IEEE compatible arithmetic,
+   and returns float values in the 387, ie,
+   (TARGET_80387 | TARGET_FLOAT_RETURNS_IN_80387)
+
+   ISC's software emulation of a 387 fails to handle the `fucomp'
+   opcode.  fucomp is only used when generating IEEE compliant code.
+   So don't make TARGET_IEEE_FP default for ISC. */
+
+#undef TARGET_DEFAULT
+#define TARGET_DEFAULT 0201
+
+/* The ISC 2.0.2 software FPU emulator apparently can't handle
+   80-bit XFmode insns, so don't generate them.  */
+#undef LONG_DOUBLE_TYPE_SIZE
+#define LONG_DOUBLE_TYPE_SIZE 64
+
+/* The ISC assembler does not like a .file directive with a name
+   longer than 14 characters.  Truncating it will not permit
+   debugging to work properly, but at least we won't get an error
+   message.  */
+
+#undef ASM_FILE_START
+#define ASM_FILE_START(FILE)                     \
+  do {                                           \
+   char c;                                       \
+   int max = 0;                                  \
+   char *string = dump_base_name;                \
+                                                 \
+    fputs ("\t.file\t\"", FILE);				 \
+                                                 \
+    while ((c = *string++) != 0 && max++ < 14) { \
+       if (c == '\"' || c == '\\')               \
+         putc ('\\', FILE);                      \
+       putc (c, FILE);                           \
+    }                                            \
+    fputs ("\"\n", FILE);                        \
+  } while (0)