1 files changed, 124 insertions, 0 deletions
diff --git a/contrib/gcc/config/i386/sysv3.h b/contrib/gcc/config/i386/sysv3.h
new file mode 100644
index 0000000..8c5cfc4
--- /dev/null
+++ b/contrib/gcc/config/i386/sysv3.h
@@ -0,0 +1,124 @@
+/* Definitions for Intel 386 running system V.
+   Copyright (C) 1988 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+
+#include "i386/i386.h"
+
+/* Use default settings for system V.3.  */
+
+#include "svr3.h"
+
+/* Use the ATT assembler syntax.
+   This overrides at least one macro (ASM_OUTPUT_LABELREF) from svr3.h.  */
+
+#include "i386/att.h"
+
+/* Use crt1.o as a startup file and crtn.o as a closing file.  */
+
+#define STARTFILE_SPEC  \
+  "%{pg:gcrt1.o%s}%{!pg:%{posix:%{p:mcrtp1.o%s}%{!p:crtp1.o%s}}%{!posix:%{p:mcrt1.o%s}%{!p:crt1.o%s}}} crtbegin.o%s\
+   %{p:-L/usr/lib/libp}%{pg:-L/usr/lib/libp}"
+
+/* ??? There is a suggestion that -lg is needed here.
+   Does anyone know whether this is right?  */
+#define LIB_SPEC "%{posix:-lcposix} %{shlib:-lc_s} -lc crtend.o%s crtn.o%s"
+
+/* Specify predefined symbols in preprocessor.  */
+
+#define CPP_PREDEFINES "-Dunix -Di386 -Asystem(unix) -Asystem(svr3) -Acpu(i386) -Amachine(i386)"
+
+#define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
+
+/* Writing `int' for a bitfield forces int alignment for the structure.  */
+
+#define PCC_BITFIELD_TYPE_MATTERS 1
+
+/* Don't write a `.optim' pseudo; this assembler doesn't handle them.  */
+
+#undef ASM_FILE_START_1
+#define ASM_FILE_START_1(FILE)
+
+/* We want to be able to get DBX debugging information via -gstabs.  */
+
+#undef DBX_DEBUGGING_INFO
+#define DBX_DEBUGGING_INFO
+
+#undef PREFERRED_DEBUGGING_TYPE
+#define PREFERRED_DEBUGGING_TYPE SDB_DEBUG
+
+/* longjmp may fail to restore the registers if called from the same
+   function that called setjmp.  To compensate, the compiler avoids
+   putting variables in registers in functions that use both setjmp
+   and longjmp.  */
+
+#define NON_SAVING_SETJMP \
+  (current_function_calls_setjmp && current_function_calls_longjmp)
+
+/* longjmp may fail to restore the stack pointer if the saved frame
+   pointer is the same as the caller's frame pointer.  Requiring a frame
+   pointer in any function that calls setjmp or longjmp avoids this
+   problem, unless setjmp and longjmp are called from the same function.
+   Since a frame pointer will be required in such a function, it is OK
+   that the stack pointer is not restored.  */
+
+#undef FRAME_POINTER_REQUIRED
+#define FRAME_POINTER_REQUIRED \
+  (current_function_calls_setjmp || current_function_calls_longjmp)
+
+/* Modify ASM_OUTPUT_LOCAL slightly to test -msvr3-shlib.  */
+#undef ASM_OUTPUT_LOCAL
+#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED)	\
+  do {							\
+    int align = exact_log2 (ROUNDED);			\
+    if (align > 2) align = 2;				\
+    if (TARGET_SVR3_SHLIB)				\
+      data_section ();					\
+    else						\
+      bss_section ();					\
+    ASM_OUTPUT_ALIGN ((FILE), align == -1 ? 2 : align);	\
+    ASM_OUTPUT_LABEL ((FILE), (NAME));			\
+    fprintf ((FILE), "\t.set .,.+%u\n", (ROUNDED));	\
+  } while (0)
+
+/* Define a few machine-specific details of the implementation of
+   constructors.
+
+   The __CTORS_LIST__ goes in the .init section.  Define CTOR_LIST_BEGIN
+   and CTOR_LIST_END to contribute to the .init section an instruction to
+   push a word containing 0 (or some equivalent of that).
+
+   ASM_OUTPUT_CONSTRUCTOR should be defined to push the address of the
+   constructor.  */
+
+#undef INIT_SECTION_ASM_OP
+#define INIT_SECTION_ASM_OP     ".section .init,\"x\""
+
+#define CTOR_LIST_BEGIN				\
+  asm (INIT_SECTION_ASM_OP);			\
+  asm ("pushl $0")
+#define CTOR_LIST_END CTOR_LIST_BEGIN
+
+#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME)	\
+  do {						\
+    init_section ();				\
+    fprintf (FILE, "\tpushl $");		\
+    assemble_name (FILE, NAME);			\
+    fprintf (FILE, "\n");			\
+  } while (0)