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- /* Configuration for a ns32532 running NetBSD as the target machine.
-
- 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, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- $Id: netbsd.h,v 1.1 1994/03/30 22:30:46 kenner Exp $
- */
-
- #include <machine/ansi.h>
- #include "ns32k/ns32k.h"
-
- /* Compile for the floating point unit & 32532 by default;
- Don't assume SB is zero */
-
- #define TARGET_DEFAULT 57
-
- /* 32-bit alignment for efficiency */
-
- #undef POINTER_BOUNDARY
- #define POINTER_BOUNDARY 32
-
- /* 32-bit alignment for efficiency */
-
- #undef FUNCTION_BOUNDARY
- #define FUNCTION_BOUNDARY 32
-
- /* 32532 spec says it can handle any alignment. Rumor from tm-ns32k.h
- tells this might not be actually true (but it's for 32032, perhaps
- National has fixed the bug for 32532). You might have to change this
- if the bug still exists. */
-
- #undef STRICT_ALIGNMENT
- #define STRICT_ALIGNMENT 0
-
- /* Use pc relative addressing whenever possible,
- it's more efficient than absolute (ns32k.c)
- You have to fix a bug in gas 1.38.1 to make this work with gas,
- patch available from jkp@cs.hut.fi.
- (NetBSD's gas version has this patch already applied) */
-
- #define PC_RELATIVE
-
- /* Operand of bsr or jsr should be just the address. */
-
- #define CALL_MEMREF_IMPLICIT
-
- /* movd insns may have floating point constant operands. */
-
- #define MOVD_FLOAT_OK
-
- /* Every address needs to use a base reg. */
-
- #define BASE_REG_NEEDED
-
- /* Names to predefine in the preprocessor for this target machine. */
-
- #undef CPP_PREDEFINES
- #define CPP_PREDEFINES "-Dns32k -Dns32000 -Dns32532 -D__NetBSD__ -Dunix"
-
- /* Specify -k to assembler for pic generation. PIC needs -K too. */
-
- #define ASM_SPEC "%{fpic:-k} %{fPIC:-k -K}"
-
- #define LINK_SPEC \
- "%{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp %{static:-Bstatic} %{assert*}"
-
- #define STARTFILE_SPEC \
- "%{!shared:%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}"
-
- /* No more libg.a; no libraries if making shared object */
-
- #define LIB_SPEC "%{!shared:%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
-
- /* Make gcc agree with <machine/ansi.h> */
-
- #undef SIZE_TYPE
- #define SIZE_TYPE "unsigned int"
-
- #undef PTRDIFF_TYPE
- #define PTRDIFF_TYPE "int"
-
- #undef WCHAR_TYPE
- #define WCHAR_TYPE "short unsigned int"
-
- #define WCHAR_UNSIGNED 1
-
- #undef WCHAR_TYPE_SIZE
- #define WCHAR_TYPE_SIZE 16
-
- /* This is BSD, so it wants DBX format. */
-
- #define DBX_DEBUGGING_INFO
-
- /* Do not break .stabs pseudos into continuations. */
-
- #define DBX_CONTIN_LENGTH 0
-
- /* This is the char to use for continuation (in case we need to turn
- continuation back on). */
-
- #define DBX_CONTIN_CHAR '?'
-
- /* Don't use the `xsfoo;' construct in DBX output; this system
- doesn't support it. */
-
- #define DBX_NO_XREFS
-
- /* Don't default to pcc-struct-return, because gcc is the only compiler, and
- we want to retain compatibility with older gcc versions. */
-
- #undef PCC_STATIC_STRUCT_RETURN
- #define DEFAULT_PCC_STRUCT_RETURN 0
-
- /*
- * Some imports from svr4.h in support of shared libraries.
- */
-
- /* Define the strings used for the special svr4 .type and .size directives.
- These strings generally do not vary from one system running svr4 to
- another, but if a given system (e.g. m88k running svr) needs to use
- different pseudo-op names for these, they may be overridden in the
- file which includes this one. */
-
- #define TYPE_ASM_OP ".type"
- #define SIZE_ASM_OP ".size"
- #define WEAK_ASM_OP ".weak"
-
- /* The following macro defines the format used to output the second
- operand of the .type assembler directive. Different svr4 assemblers
- expect various different forms for this operand. The one given here
- is just a default. You may need to override it in your machine-
- specific tm.h file (depending upon the particulars of your assembler). */
-
- #define TYPE_OPERAND_FMT "@%s"
-
- /* Write the extra assembler code needed to declare a function's result.
- Most svr4 assemblers don't require any special declaration of the
- result value, but there are exceptions. */
-
- #ifndef ASM_DECLARE_RESULT
- #define ASM_DECLARE_RESULT(FILE, RESULT)
- #endif
-
- /* These macros generate the special .type and .size directives which
- are used to set the corresponding fields of the linker symbol table
- entries in an ELF object file under SVR4. These macros also output
- the starting labels for the relevant functions/objects. */
-
- /* Write the extra assembler code needed to declare a function properly.
- Some svr4 assemblers need to also have something extra said about the
- function's return value. We allow for that here. */
-
- #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
- do { \
- fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
- assemble_name (FILE, NAME); \
- putc (',', FILE); \
- fprintf (FILE, TYPE_OPERAND_FMT, "function"); \
- putc ('\n', FILE); \
- ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
- ASM_OUTPUT_LABEL(FILE, NAME); \
- } while (0)
-
- /* Write the extra assembler code needed to declare an object properly. */
-
- #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
- do { \
- fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
- assemble_name (FILE, NAME); \
- putc (',', FILE); \
- fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
- putc ('\n', FILE); \
- size_directive_output = 0; \
- if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
- { \
- size_directive_output = 1; \
- fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
- assemble_name (FILE, NAME); \
- fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (decl))); \
- } \
- ASM_OUTPUT_LABEL(FILE, NAME); \
- } while (0)
-
- /* Output the size directive for a decl in rest_of_decl_compilation
- in the case where we did not do so before the initializer.
- Once we find the error_mark_node, we know that the value of
- size_directive_output was set
- by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */
-
- #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
- do { \
- char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
- if (!flag_inhibit_size_directive \
- && !size_directive_output \
- && DECL_SIZE (DECL) \
- && ! AT_END && TOP_LEVEL \
- && DECL_INITIAL (DECL) == error_mark_node) \
- { \
- fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
- assemble_name (FILE, name); \
- fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
- } \
- } while (0)
-
- /* This is how to declare the size of a function. */
-
- #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
- do { \
- if (!flag_inhibit_size_directive) \
- { \
- char label[256]; \
- static int labelno; \
- labelno++; \
- ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \
- ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \
- fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
- assemble_name (FILE, (FNAME)); \
- fprintf (FILE, ","); \
- assemble_name (FILE, label); \
- fprintf (FILE, "-"); \
- assemble_name (FILE, (FNAME)); \
- putc ('\n', FILE); \
- } \
- } while (0)
-