--- /dev/null
+/* Core target definitions for GNU compiler
+ for IBM RS/6000 PowerPC running NetWare
+ Copyright (C) 1994 Free Software Foundation, Inc.
+ Contributed by Cygnus Support.
+
+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. */
+
+#include "rs6000/powerpc.h"
+
+/* Don't generate XCOFF debugging information. */
+
+#undef XCOFF_DEBUGGING_INFO
+
+/* Don't use the COFF object file format. */
+
+#undef OBJECT_FORMAT_COFF
+
+/* The XCOFF support uses weird symbol suffixes, which we don't want
+ for ELF. */
+
+#undef RS6000_OUTPUT_BASENAME
+#define RS6000_OUTPUT_BASENAME(FILE, NAME) assemble_name (FILE, NAME)
+
+/* Don't bother to output .extern pseudo-ops. They are not needed by
+ ELF assemblers. */
+
+#undef ASM_OUTPUT_EXTERNAL
+
+/* Undefine some things which are defined by the generic svr4.h. */
+
+#undef ASM_FILE_END
+#undef ASM_OUTPUT_EXTERNAL_LIBCALL
+#undef READONLY_DATA_SECTION
+#undef SELECT_SECTION
+#undef ASM_DECLARE_FUNCTION_NAME
+
+/* Use the regular svr4 definitions. */
+
+#include "svr4.h"
+#include "netware.h"
+
+/* Create a function descriptor when we declare a function name. This
+ is a mixture of the ASM_DECLARE_FUNCTION_NAME macros in rs6000.h
+ and svr4.h. The unmodified function name is used to name the
+ descriptor. The function name with an initial `.' is used to name
+ the code. */
+
+#undef ASM_DECLARE_FUNCTION_NAME
+#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)); \
+ if (TREE_PUBLIC (DECL)) \
+ { \
+ fprintf (FILE, "\t.globl ."); \
+ assemble_name (FILE, NAME); \
+ fprintf (FILE, "\n"); \
+ } \
+ data_section (); \
+ ASM_OUTPUT_ALIGN (FILE, 2); \
+ ASM_OUTPUT_LABEL (FILE, NAME); \
+ fprintf (FILE, "\t.long ."); \
+ assemble_name (FILE, NAME); \
+ fprintf (FILE, ", __GOT0, 0\n"); \
+ text_section (); \
+ fprintf (FILE, "."); \
+ ASM_OUTPUT_LABEL (FILE, NAME); \
+ } while (0)
+
+/* We need to override the .size output in order to put a `.' before
+ the function name. */
+
+#undef ASM_DECLARE_FUNCTION_SIZE
+#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)
+
+/* Use ELF style section commands. */
+
+#undef TEXT_SECTION_ASM_OP
+#define TEXT_SECTION_ASM_OP "\t.section\t\".text\""
+
+#undef DATA_SECTION_ASM_OP
+#define DATA_SECTION_ASM_OP "\t.section\t\".data\""
+
+/* Besides the usual ELF sections, we need a toc section. */
+
+#undef EXTRA_SECTIONS
+#define EXTRA_SECTIONS in_const, in_ctors, in_dtors, in_toc
+
+#undef EXTRA_SECTION_FUNCTIONS
+#define EXTRA_SECTION_FUNCTIONS \
+ CONST_SECTION_FUNCTION \
+ CTORS_SECTION_FUNCTION \
+ DTORS_SECTION_FUNCTION \
+ TOC_SECTION_FUNCTION
+
+#define TOC_SECTION_FUNCTION \
+void \
+toc_section () \
+{ \
+ if (TARGET_MINIMAL_TOC) \
+ { \
+ static int toc_initialized = 0; \
+ \
+ if (! toc_initialized) \
+ { \
+ fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP); \
+ fprintf (asm_out_file, ".LCTOC0:\n"); \
+ fprintf (asm_out_file, "\t.tc .LCTOC1\n"); \
+ fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
+ fprintf (asm_out_file, ".LCTOC1:\n"); \
+ toc_initialized = 1; \
+ } \
+ } \
+ \
+ if (in_section != in_toc) \
+ { \
+ fprintf (asm_out_file, "%s\n", \
+ (TARGET_MINIMAL_TOC \
+ ? MINIMAL_TOC_SECTION_ASM_OP \
+ : TOC_SECTION_ASM_OP)); \
+ in_section = in_toc; \
+ } \
+}
+
+#define TOC_SECTION_ASM_OP "\t.section\t.got,\"aw\""
+#define MINIMAL_TOC_SECTION_ASM_OP "\t.section\t.got1,\"aw\""
+
+/* Use the TOC section for TOC entries. */
+
+#undef SELECT_RTX_SECTION
+#define SELECT_RTX_SECTION(MODE, X) \
+{ if (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P (X)) \
+ toc_section (); \
+ else \
+ const_section (); \
+}
+
+/* How to renumber registers for dbx and gdb. */
+
+#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
+
+/* svr4.h overrides ASM_OUTPUT_INTERNAL_LABEL. */
+
+#undef ASM_OUTPUT_INTERNAL_LABEL_PREFIX
+#define ASM_OUTPUT_INTERNAL_LABEL_PREFIX(FILE,PREFIX) \
+ fprintf (FILE, ".%s", PREFIX)
+
+/* Pass -m601 to the assembler, since that is what powerpc.h currently
+ implies. */
+#undef ASM_SPEC
+#define ASM_SPEC \
+ "-u -m601 %{V} %{v:%{!V:-V}} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
+/* This is the end of what might become sysv4.h. */
+
+/* Enable output of DBX (stabs) debugging information when asked for it. */
+
+#define DBX_DEBUGGING_INFO
+
+/* Prefer DBX (stabs) debugging information over the native (DWARF) format. */
+
+#undef PREFERRED_DEBUGGING_TYPE
+#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
+
+/* Line numbers are relative to the current function. */
+
+#undef ASM_OUTPUT_SOURCE_LINE
+#define ASM_OUTPUT_SOURCE_LINE(file, line) \
+ { static int sym_lineno = 1; \
+ fprintf (file, ".stabn 68,0,%d,.LM%d-.%s\n.LM%d:\n",\
+ line, sym_lineno, \
+ XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0), \
+ sym_lineno); \
+ sym_lineno += 1; }
+
+/* But, to make this work, we have to output the stabs for the function
+ name *first*... */
+
+#define DBX_FUNCTION_FIRST
+
+/* We need to output LBRAC and RBRAC lines specially to include the
+ dot in from of the text symbol for a function. */
+
+#define DBX_OUTPUT_LBRAC(FILE, BUF) \
+do \
+ { \
+ fprintf (FILE, "%s %d,0,0,", ASM_STABN_OP, N_LBRAC); \
+ assemble_name (FILE, BUF); \
+ fprintf (FILE, "-."); \
+ assemble_name (asmfile, \
+ XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
+ fprintf (asmfile, "\n"); \
+ } \
+while (0)
+
+#define DBX_OUTPUT_RBRAC(FILE, BUF) \
+do \
+ { \
+ fprintf (FILE, "%s %d,0,0,", ASM_STABN_OP, N_RBRAC); \
+ assemble_name (FILE, BUF); \
+ fprintf (FILE, "-."); \
+ assemble_name (asmfile, \
+ XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
+ fprintf (asmfile, "\n"); \
+ } \
+while (0)
+
+/* We are using function descriptors, so the value of a function
+ symbol is in the .data section. However, we want the stabs entry
+ for that function to point at the actual function code in the .text
+ section, which we get by prefixing the symbol with a dot. */
+
+#define DBX_FINISH_SYMBOL(sym) \
+do { \
+ int line = 0; \
+ if (use_gnu_debug_info_extensions && sym != 0) \
+ line = DECL_SOURCE_LINE (sym); \
+ \
+ fprintf (asmfile, "\",%d,0,%d,", current_sym_code, line); \
+ if (current_sym_addr) \
+ { \
+ if (TREE_CODE (sym) == FUNCTION_DECL) \
+ fprintf (asmfile, "."); \
+ output_addr_const (asmfile, current_sym_addr); \
+ } \
+ else \
+ fprintf (asmfile, "%d", current_sym_value); \
+ putc ('\n', asmfile); \
+} while (0)
+
+/* This is the end of what might become sysv4dbx.h. */
+
+#undef TARGET_VERSION
+#define TARGET_VERSION fprintf (stderr, " (PowerPC Netware)");
+
+/* FIXME: These should actually indicate PowerPC, when there is some
+ standard way of expressing that. */
+#undef CPP_PREDEFINES
+#define CPP_PREDEFINES \
+ "-DPPC D__netware__ -Asystem(netware) -Acpu(powerpc) -Amachine(powerpc)"
OSDN Git Service
