-/* Definitions for Intel 386 running LynxOS.
- Copyright (C) 1993, 1995, 1996, 2002 Free Software Foundation, Inc.
+/* Definitions for LynxOS on i386.
+ Copyright (C) 1993, 1995, 1996, 2002, 2004, 2005, 2007
+ Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+GCC 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)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+GCC 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. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
-#define TARGET_VERSION fprintf (stderr, " (80386, LYNX BSD syntax)");
+#define TARGET_VERSION fputs (" (i386/LynxOS)", stderr);
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES "-DI386 -DLynx -DIBITS32 -Asystem=unix -Asystem=lynx"
+#define TARGET_OS_CPP_BUILTINS() \
+ do \
+ { \
+ builtin_define ("__LITTLE_ENDIAN__"); \
+ builtin_define ("__x86__"); \
+ } \
+ while (0)
-/* The prefix to add to user-visible assembler symbols. */
+/* The svr4 ABI for the i386 says that records and unions are returned
+ in memory. */
-/* Override the svr3 convention of adding a leading underscore. */
+#define DEFAULT_PCC_STRUCT_RETURN 1
-#undef USER_LABEL_PREFIX
-#define USER_LABEL_PREFIX ""
+/* BSS_SECTION_ASM_OP gets defined i386/unix.h. */
-/* Apparently LynxOS clobbers ebx when you call into the OS. */
+#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
+ asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
-#undef CALL_USED_REGISTERS
-#define CALL_USED_REGISTERS \
-/*ax,dx,cx,bx,si,di,bp,sp,st,st1,st2,st3,st4,st5,st6,st7,arg*/ \
-{ 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }
+/* LynxOS's GDB counts the floating point registers from 16. */
-/* Prefix for internally generated assembler labels. If we aren't using
- underscores, we are using prefix `.'s to identify labels that should
- be ignored, as in `i386/gas.h' --karl@cs.umb.edu */
+#undef DBX_REGISTER_NUMBER
+#define DBX_REGISTER_NUMBER(n) \
+ (TARGET_64BIT ? dbx64_register_map[n] \
+ : (n) == 0 ? 0 \
+ : (n) == 1 ? 2 \
+ : (n) == 2 ? 1 \
+ : (n) == 3 ? 3 \
+ : (n) == 4 ? 6 \
+ : (n) == 5 ? 7 \
+ : (n) == 6 ? 5 \
+ : (n) == 7 ? 4 \
+ : ((n) >= FIRST_STACK_REG && (n) <= LAST_STACK_REG) ? (n) + 8 \
+ : (-1))
+
+/* A C statement to output to the stdio stream FILE an assembler
+ command to advance the location counter to a multiple of 1<<LOG
+ bytes if it is within MAX_SKIP bytes.
-#undef LPREFIX
-#define LPREFIX ".L"
+ This is used to align code labels according to Intel recommendations. */
-/* The prefix to add to user-visible assembler symbols. */
+#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
+#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
+ do { \
+ if ((LOG) != 0) { \
+ if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
+ else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
+ } \
+ } while (0)
+#endif
-#undef USER_LABEL_PREFIX
-#define USER_LABEL_PREFIX ""
+/* Undefine SUBTARGET_EXTRA_SPECS it is empty anyway. We define it in
+ config/lynx.h. */
-/* If user-symbols don't have underscores,
- then it must take more than `L' to identify
- a label that should be ignored. */
+#undef SUBTARGET_EXTRA_SPECS
-/* This is how to store into the string BUF
- the symbol_ref name of an internal numbered label where
- PREFIX is the class of label and NUM is the number within the class.
- This is suitable for output with `assemble_name'. */
+/* Undefine the definition from att.h to enable our default. */
-#undef ASM_GENERATE_INTERNAL_LABEL
-#define ASM_GENERATE_INTERNAL_LABEL(BUF,PREFIX,NUMBER) \
- sprintf ((BUF), ".%s%ld", (PREFIX), (long)(NUMBER))
+#undef ASM_OUTPUT_ALIGN
-/* This is how to output an internal numbered label where
- PREFIX is the class of label and NUM is the number within the class. */
+/* Undefine the definition from elfos.h to enable our default. */
-#undef ASM_OUTPUT_INTERNAL_LABEL
-#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
- fprintf (FILE, ".%s%d:\n", PREFIX, NUM)
+#undef PREFERRED_DEBUGGING_TYPE
+
+/* The file i386.c defines TARGET_HAVE_TLS unconditionally if
+ HAVE_AS_TLS is defined. HAVE_AS_TLS is defined as gas support for
+ TLS is detected by configure. We undefine it here. */
+
+#undef HAVE_AS_TLS
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