226 lines
8.1 KiB
C
226 lines
8.1 KiB
C
/* Definitions for DECstation running BSD as target machine for GNU compiler.
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Copyright (C) 1993, 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#define DECSTATION
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/* Look for the include files in the system-defined places. */
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#ifndef CROSS_COMPILE
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#undef GPLUSPLUS_INCLUDE_DIR
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#define GPLUSPLUS_INCLUDE_DIR "/usr/include/g++"
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#undef GCC_INCLUDE_DIR
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#define GCC_INCLUDE_DIR "/usr/include"
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#undef INCLUDE_DEFAULTS
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#define INCLUDE_DEFAULTS \
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{ \
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{ GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 }, \
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{ GCC_INCLUDE_DIR, "GCC", 0, 0 }, \
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{ 0, 0, 0, 0 } \
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}
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/* Under NetBSD, the normal location of the various *crt*.o files is the
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/usr/lib directory. */
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#undef STANDARD_STARTFILE_PREFIX
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#define STANDARD_STARTFILE_PREFIX "/usr/lib/"
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#endif
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/* Provide a LINK_SPEC appropriate for NetBSD. Here we provide support
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for the special GCC options -static, -assert, and -nostdlib. */
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#undef LINK_SPEC
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#define LINK_SPEC \
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"%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} \
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%{!nostartfiles:%{!r*:%{!e*:-e __start}}} -dc -dp %{static:-Bstatic} %{assert*}"
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/* Implicit library calls should use memcpy, not bcopy, etc. */
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#define TARGET_MEM_FUNCTIONS
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/* Define mips-specific netbsd predefines... */
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#ifndef CPP_PREDEFINES
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#define CPP_PREDEFINES "-D__ANSI_COMPAT \
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-DMIPSEL -DR3000 -DSYSTYPE_BSD -D_SYSTYPE_BSD -D__NetBSD__ -Dmips \
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-D__NO_LEADING_UNDERSCORES__ -D__GP_SUPPORT__ \
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-Dunix -D_R3000 \
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-Asystem=unix -Asystem=NetBSD -Amachine=mips"
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#endif
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#ifndef SUBTARGET_CPP_SPEC
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#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
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#endif
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#define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
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#define STARTFILE_SPEC ""
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#ifndef MACHINE_TYPE
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#define MACHINE_TYPE "NetBSD/pmax"
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#endif
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#define TARGET_DEFAULT MASK_GAS
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#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
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#include "mips/mips.h"
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/*
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* Some imports from svr4.h in support of shared libraries.
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* Currently, we need the DECLARE_OBJECT_SIZE stuff.
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*/
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/* Define the strings used for the special svr4 .type and .size directives.
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These strings generally do not vary from one system running svr4 to
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another, but if a given system (e.g. m88k running svr) needs to use
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different pseudo-op names for these, they may be overridden in the
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file which includes this one. */
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#undef TYPE_ASM_OP
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#undef SIZE_ASM_OP
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#undef WEAK_ASM_OP
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#define TYPE_ASM_OP "\t.type\t"
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#define SIZE_ASM_OP "\t.size\t"
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#define WEAK_ASM_OP "\t.weak\t"
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/* The following macro defines the format used to output the second
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operand of the .type assembler directive. Different svr4 assemblers
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expect various different forms for this operand. The one given here
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is just a default. You may need to override it in your machine-
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specific tm.h file (depending upon the particulars of your assembler). */
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#undef TYPE_OPERAND_FMT
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#define TYPE_OPERAND_FMT "@%s"
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/* Write the extra assembler code needed to declare a function's result.
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Most svr4 assemblers don't require any special declaration of the
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result value, but there are exceptions. */
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#ifndef ASM_DECLARE_RESULT
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#define ASM_DECLARE_RESULT(FILE, RESULT)
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#endif
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/* These macros generate the special .type and .size directives which
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are used to set the corresponding fields of the linker symbol table
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entries in an ELF object file under SVR4. These macros also output
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the starting labels for the relevant functions/objects. */
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/* Write the extra assembler code needed to declare a function properly.
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Some svr4 assemblers need to also have something extra said about the
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function's return value. We allow for that here. */
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#undef ASM_DECLARE_FUNCTION_NAME
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#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
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do { \
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fprintf (FILE, "%s", TYPE_ASM_OP); \
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assemble_name (FILE, NAME); \
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putc (',', FILE); \
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fprintf (FILE, TYPE_OPERAND_FMT, "function"); \
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putc ('\n', FILE); \
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ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
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} while (0)
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/* Write the extra assembler code needed to declare an object properly. */
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#undef ASM_DECLARE_OBJECT_NAME
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#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
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do { \
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fprintf (FILE, "%s", TYPE_ASM_OP); \
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assemble_name (FILE, NAME); \
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putc (',', FILE); \
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fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
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putc ('\n', FILE); \
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size_directive_output = 0; \
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if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
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{ \
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size_directive_output = 1; \
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fprintf (FILE, "%s", SIZE_ASM_OP); \
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assemble_name (FILE, NAME); \
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fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
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} \
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ASM_OUTPUT_LABEL(FILE, NAME); \
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} while (0)
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/* Output the size directive for a decl in rest_of_decl_compilation
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in the case where we did not do so before the initializer.
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Once we find the error_mark_node, we know that the value of
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size_directive_output was set
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by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */
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#undef ASM_FINISH_DECLARE_OBJECT
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#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
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do { \
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const char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
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if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \
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&& ! AT_END && TOP_LEVEL \
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&& DECL_INITIAL (DECL) == error_mark_node \
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&& !size_directive_output) \
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{ \
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size_directive_output = 1; \
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fprintf (FILE, "%s", SIZE_ASM_OP); \
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assemble_name (FILE, name); \
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fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
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} \
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} while (0)
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/* This is how to declare the size of a function. */
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#undef ASM_DECLARE_FUNCTION_SIZE
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#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
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do { \
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if (!flag_inhibit_size_directive) \
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{ \
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char label[256]; \
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static int labelno; \
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labelno++; \
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ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \
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ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \
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fprintf (FILE, "%s", SIZE_ASM_OP); \
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assemble_name (FILE, (FNAME)); \
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fprintf (FILE, ","); \
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assemble_name (FILE, label); \
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fprintf (FILE, "-"); \
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assemble_name (FILE, (FNAME)); \
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putc ('\n', FILE); \
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} \
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} while (0)
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/*
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A C statement to output something to the assembler file to switch to section
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NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or
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NULL_TREE. Some target formats do not support arbitrary sections. Do not
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define this macro in such cases.
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*/
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#define ASM_OUTPUT_SECTION_NAME(F, DECL, NAME, RELOC) \
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do { \
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extern FILE *asm_out_text_file; \
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if ((DECL) && TREE_CODE (DECL) == FUNCTION_DECL) \
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fprintf (asm_out_text_file, "\t.section %s,\"ax\",@progbits\n", (NAME)); \
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else if ((DECL) && DECL_READONLY_SECTION (DECL, RELOC)) \
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fprintf (F, "\t.section %s,\"a\",@progbits\n", (NAME)); \
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else if (! strcmp (NAME, ".bss")) \
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fprintf (F, "\t.section %s,\"aw\",@nobits\n", (NAME)); \
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else \
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fprintf (F, "\t.section %s,\"aw\",@progbits\n", (NAME)); \
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} while (0)
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/* Since gas and gld are standard on NetBSD, we don't need these */
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#undef ASM_FINAL_SPEC
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#undef STARTFILE_SPEC
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