home *** CD-ROM | disk | FTP | other *** search
- /* next.h: definitions for NeXT.
-
- 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 "m68k.h"
-
- #define EXTRA_FORMAT_FUNCTIONS \
- "NXPrintf", FALSE, 2, FALSE, \
- "NXScanf", TRUE, 2, FALSE, \
- "NXVPrintf", FALSE, 2, TRUE, \
- "NXVScanf", TRUE, 2, TRUE, \
- "DPSPrintf", FALSE, 2, FALSE, \
- "bsd_sprintf", FALSE, 2, FALSE, \
- "bsd_vsprintf", FALSE, 2, TRUE,
-
- /* Use NeXT's special calling convention for sending an Objc message. */
- #undef NEXT_OBJC_RUNTIME
-
- /* We have atexit. */
- #define HAVE_ATEXIT
-
- /* Enable recent gcc to compile under the old gcc in Next release 1.0. */
- #define __inline inline
-
- /* See m68k.h. 0407 means 68040 (or 68030 or 68020, with 68881/2). */
-
- #define TARGET_DEFAULT 0407
-
- /* wchar_t is unsigned short */
-
- #undef WCHAR_TYPE
- #undef WCHAR_TYPE_SIZE
- #define WCHAR_TYPE "short unsigned int"
- #define WCHAR_TYPE_SIZE (BITS_PER_WORD / 2)
-
- /* Give methods pretty symbol names on NeXT. */
-
- #define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME) \
- do { if (CAT_NAME) \
- sprintf (BUF, "%c[%s(%s) %s]", (IS_INST) ? '-' : '+', \
- (CLASS_NAME), (CAT_NAME), (SEL_NAME)); \
- else \
- sprintf (BUF, "%c[%s %s]", (IS_INST) ? '-' : '+', \
- (CLASS_NAME), (SEL_NAME)); \
- } while (0)
-
- /* Wrap new method names in quotes so the assembler doesn't gag.
- Make Objective-C internal symbols local. */
-
- #undef ASM_OUTPUT_LABELREF
- #define ASM_OUTPUT_LABELREF(FILE,NAME) \
- do { if (NAME[0] == '+' || NAME[0] == '-') fprintf (FILE, "\"%s\"", NAME); \
- else if (!strncmp (NAME, "_OBJC_", 6)) fprintf (FILE, "L%s", NAME); \
- else if (!strncmp (NAME, ".objc_class_name_", 17)) \
- fprintf (FILE, "%s", NAME); \
- else fprintf (FILE, "_%s", NAME); } while (0)
-
- #undef STACK_BOUNDARY
- /* Boundary (in *bits*) on which stack pointer should be aligned. */
- #define STACK_BOUNDARY 32
-
- /* These compiler options take n arguments. */
-
- #define WORD_SWITCH_TAKES_ARG(STR) \
- (!strcmp (STR, "Ttext") ? 1 : \
- !strcmp (STR, "Tdata") ? 1 : \
- !strcmp (STR, "include") ? 1 : \
- !strcmp (STR, "imacros") ? 1 : \
- !strcmp (STR, "segalign") ? 1 : \
- !strcmp (STR, "seg1addr") ? 1 : \
- !strcmp (STR, "segaddr") ? 2 : \
- !strcmp (STR, "sectobjectsymbols") ? 2 : \
- !strcmp (STR, "segprot") ? 3 : \
- !strcmp (STR, "sectcreate") ? 3 : \
- !strcmp (STR, "sectalign") ? 3 : \
- !strcmp (STR, "segcreate") ? 3 : \
- !strcmp (STR, "sectorder") ? 3 : \
- !strcmp (STR, "aux-info") ? 1 : \
- 0)
-
- /* Names to predefine in the preprocessor for this target machine. */
-
- #define CPP_PREDEFINES "-Dmc68000 -Dm68k -DNeXT -Dunix -D__MACH__"
-
- /* Machine dependent ccp options. */
-
- /* This option used to be called -bsd, but that conflicts with the
- general -b option. */
- #define CPP_SPEC "%{strict-bsd:-D__STRICT_BSD__}"
-
- /* Machine dependent ld options. */
-
- #define LINK_SPEC "%{Z} %{M} \
- %{execute*} %{object*} %{preload*} %{fvmlib*} \
- %{segalign*} %{seg1addr*} %{segaddr*} %{segprot*} \
- %{seglinkedit*} %{noseglinkedit*} \
- %{sectcreate*} %{sectalign*} %{sectobjectsymbols}\
- %{segcreate*} %{Mach*} %{whyload} %{w} \
- %{sectorder*} %{whatsloaded}"
-
- /* Machine dependent libraries. */
-
- #define LIB_SPEC "%{!p:%{!pg:-lsys_s}} %{pg:-lsys_p}"
-
- /* We specify crt0.o as -lcrt0.o so that ld will search the library path. */
- #define STARTFILE_SPEC \
- "%{pg:-lgcrt0.o}%{!pg: \
- %{p:%e-p profiling is no longer supported. Use -pg instead.} \
- %{!p:-lcrt0.o}}"
-
- /* Every structure or union's size must be a multiple of 2 bytes.
- (Why isn't this in m68k.h?) */
-
- #define STRUCTURE_SIZE_BOUNDARY 16
-
- /* Why not? */
-
- #define DOLLARS_IN_IDENTIFIERS 2
-
- /* Allow #sscs (but don't do anything). */
-
- #define SCCS_DIRECTIVE
-
- /* We use Dbx symbol format. */
-
- #define DBX_DEBUGGING_INFO
-
- /* This saves a fair amount of space. */
-
- #define DBX_CONTIN_LENGTH 0
-
- /* These screw up NeXT's gdb at the moment, so don't use them. */
-
- #define DBX_OUTPUT_MAIN_SOURCE_DIRECTORY(FILE, FILENAME)
-
- /* gdb needs a null N_SO at the end of each file for scattered loading. */
-
- #define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \
- fprintf (FILE, \
- "\t.text\n\t.stabs \"%s\",%d,0,0,Letext\nLetext:\n", \
- "" , N_SO)
-
- /* Don't use .gcc_compiled symbols to communicate with GDB;
- They interfere with numerically sorted symbol lists. */
-
- #define ASM_IDENTIFY_GCC(asm_out_file)
-
- /* This is how to output an assembler line defining a `double' constant. */
-
- #undef ASM_OUTPUT_DOUBLE
- #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \
- (REAL_VALUE_ISINF ((VALUE)) \
- ? fprintf (FILE, "\t.double 0r%s99e999\n", ((VALUE) > 0 ? "" : "-")) \
- : fprintf (FILE, "\t.double 0r%.20e\n", (VALUE)))
-
- /* This is how to output an assembler line defining a `float' constant. */
-
- #undef ASM_OUTPUT_FLOAT
- #define ASM_OUTPUT_FLOAT(FILE,VALUE) \
- (REAL_VALUE_ISINF ((VALUE)) \
- ? fprintf (FILE, "\t.single 0r%s99e999\n", ((VALUE) > 0 ? "" : "-")) \
- : fprintf (FILE, "\t.single 0r%.20e\n", (VALUE)))
-
- #undef ASM_OUTPUT_FLOAT_OPERAND
- #define ASM_OUTPUT_FLOAT_OPERAND(FILE,VALUE) \
- (REAL_VALUE_ISINF ((VALUE)) \
- ? fprintf (FILE, "#0r%s99e999", ((VALUE) > 0 ? "" : "-")) \
- : fprintf (FILE, "#0r%.9g", (VALUE)))
-
- #undef ASM_OUTPUT_DOUBLE_OPERAND
- #define ASM_OUTPUT_DOUBLE_OPERAND(FILE,VALUE) \
- (REAL_VALUE_ISINF ((VALUE)) \
- ? fprintf (FILE, "#0r%s99e999", ((VALUE) > 0 ? "" : "-")) \
- : fprintf (FILE, "#0r%.20g", (VALUE)))
-
- #if 0 /* This is for system verson 3.0, which isn't out yet. */
- #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
- do { constructor_section (); \
- ASM_OUTPUT_ALIGN (FILE, 1); \
- fprintf (FILE, "\t.long "); \
- assemble_name (FILE, NAME); \
- fprintf (FILE, "\n"); } while (0)
-
- #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
- do { destructor_section (); \
- ASM_OUTPUT_ALIGN (FILE, 1); \
- fprintf (FILE, "\t.long "); \
- assemble_name (FILE, NAME); \
- fprintf (FILE, "\n"); } while (0)
- #else
- #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
- fprintf (asm_out_file, "%s \"___CTOR_LIST__\",32,0,0,", ASM_STABS_OP); \
- assemble_name (asm_out_file, name); \
- fputc ('\n', asm_out_file);
-
- #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
- fprintf (asm_out_file, "%s \"___DTOR_LIST__\",32,0,0,", ASM_STABS_OP); \
- assemble_name (asm_out_file, name); \
- fputc ('\n', asm_out_file);
-
- #endif
-
- /* How to parse #pragma's */
-
- #define HANDLE_PRAGMA(finput) handle_pragma (finput)
-
- /* Create new Mach-O sections. */
- #if 0
- #define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, WAS_TEXT) \
- void \
- FUNCTION () \
- { \
- extern void text_section (); \
- extern int flag_no_mach_text_sections; \
- \
- if (WAS_TEXT && flag_no_mach_text_sections) \
- text_section (); \
- else if (in_section != SECTION) \
- { \
- fprintf (asm_out_file, "%s\n", DIRECTIVE); \
- in_section = SECTION; \
- } \
- } \
-
- #define EXTRA_SECTIONS \
- in_const, in_cstring, in_literal4, in_literal8, \
- in_constructor, in_destructor, \
- in_objc_class, in_objc_meta_class, in_objc_category, \
- in_objc_class_vars, in_objc_instance_vars, \
- in_objc_cls_meth, in_objc_inst_meth, \
- in_objc_cat_cls_meth, in_objc_cat_inst_meth, \
- in_objc_selector_strs, in_objc_selector_refs, \
- in_objc_symbols, in_objc_module_info
-
- #define EXTRA_SECTION_FUNCTIONS \
- SECTION_FUNCTION (const_section, \
- in_const, \
- ".const", 1) \
- SECTION_FUNCTION (cstring_section, \
- in_cstring, \
- ".cstring", 1) \
- SECTION_FUNCTION (literal4_section, \
- in_literal4, \
- ".literal4", 1) \
- SECTION_FUNCTION (literal8_section, \
- in_literal8, \
- ".literal8", 1) \
- SECTION_FUNCTION (constructor_section, \
- in_constructor, \
- ".constructor", 0) \
- SECTION_FUNCTION (destructor_section, \
- in_destructor, \
- ".destructor", 0) \
- SECTION_FUNCTION (objc_class_section, \
- in_objc_class, \
- ".objc_class", 0) \
- SECTION_FUNCTION (objc_meta_class_section, \
- in_objc_meta_class, \
- ".objc_meta_class", 0) \
- SECTION_FUNCTION (objc_category_section, \
- in_objc_category, \
- ".objc_category", 0) \
- SECTION_FUNCTION (objc_class_vars_section, \
- in_objc_class_vars, \
- ".objc_class_vars", 0) \
- SECTION_FUNCTION (objc_instance_vars_section, \
- in_objc_instance_vars, \
- ".objc_instance_vars", 0) \
- SECTION_FUNCTION (objc_cls_meth_section, \
- in_objc_cls_meth, \
- ".objc_cls_meth", 0) \
- SECTION_FUNCTION (objc_inst_meth_section, \
- in_objc_inst_meth, \
- ".objc_inst_meth", 0) \
- SECTION_FUNCTION (objc_cat_cls_meth_section, \
- in_objc_cat_cls_meth, \
- ".objc_cat_cls_meth", 0) \
- SECTION_FUNCTION (objc_cat_inst_meth_section, \
- in_objc_cat_inst_meth, \
- ".objc_cat_inst_meth", 0) \
- SECTION_FUNCTION (objc_selector_strs_section, \
- in_objc_selector_strs, \
- ".objc_selector_strs", 0) \
- SECTION_FUNCTION (objc_selector_refs_section, \
- in_objc_selector_refs, \
- ".objc_selector_refs", 0) \
- SECTION_FUNCTION (objc_symbols_section, \
- in_objc_symbols, \
- ".objc_symbols", 0) \
- SECTION_FUNCTION (objc_module_info_section, \
- in_objc_module_info, \
- ".objc_module_info", 0)
-
- #define READONLY_DATA_SECTION const_section
-
- #define SELECT_SECTION(exp,reloc) \
- do \
- { \
- if (TREE_CODE (exp) == STRING_CST) \
- { \
- if (flag_writable_strings) \
- data_section (); \
- else if (TREE_STRING_LENGTH (exp) != \
- strlen (TREE_STRING_POINTER (exp)) + 1) \
- readonly_data_section (); \
- else \
- cstring_section (); \
- } \
- else if (TREE_CODE (exp) == INTEGER_CST \
- || TREE_CODE (exp) == REAL_CST) \
- { \
- tree size = TYPE_SIZE (TREE_TYPE (exp)); \
- \
- if (TREE_CODE (size) == INTEGER_CST && \
- TREE_INT_CST_LOW (size) == 4 && \
- TREE_INT_CST_HIGH (size) == 0) \
- literal4_section (); \
- else if (TREE_CODE (size) == INTEGER_CST && \
- TREE_INT_CST_LOW (size) == 8 && \
- TREE_INT_CST_HIGH (size) == 0) \
- literal8_section (); \
- else \
- readonly_data_section (); \
- } \
- else if ((TREE_READONLY (exp) || TREE_CONSTANT (exp)) \
- && !TREE_SIDE_EFFECTS (exp)) \
- readonly_data_section (); \
- else if (TREE_CODE (exp) == VAR_DECL && \
- DECL_NAME (exp) && \
- TREE_CODE (DECL_NAME (exp)) == IDENTIFIER_NODE && \
- IDENTIFIER_POINTER (DECL_NAME (exp)) && \
- !strncmp (IDENTIFIER_POINTER (DECL_NAME (exp)), "_OBJC_", 6)) \
- { \
- const char *name = IDENTIFIER_POINTER (DECL_NAME (exp)); \
- \
- if (!strncmp (name, "_OBJC_CLASS_METHODS_", 20)) \
- objc_cls_meth_section (); \
- else if (!strncmp (name, "_OBJC_INSTANCE_METHODS_", 23)) \
- objc_inst_meth_section (); \
- else if (!strncmp (name, "_OBJC_CATEGORY_CLASS_METHODS_", 20)) \
- objc_cat_cls_meth_section (); \
- else if (!strncmp (name, "_OBJC_CATEGORY_INSTANCE_METHODS_", 23)) \
- objc_cat_inst_meth_section (); \
- else if (!strncmp (name, "_OBJC_CLASS_VARIABLES_", 22)) \
- objc_class_vars_section (); \
- else if (!strncmp (name, "_OBJC_INSTANCE_VARIABLES_", 25)) \
- objc_instance_vars_section (); \
- else if (!strncmp (name, "_OBJC_CLASS_", 12)) \
- objc_class_section (); \
- else if (!strncmp (name, "_OBJC_METACLASS_", 16)) \
- objc_meta_class_section (); \
- else if (!strncmp (name, "_OBJC_CATEGORY_", 15)) \
- objc_category_section (); \
- else if (!strncmp (name, "_OBJC_STRINGS", 13)) \
- objc_selector_strs_section (); \
- else if (!strncmp (name, "_OBJC_SELECTOR_REFERENCES", 25)) \
- objc_selector_refs_section (); \
- else if (!strncmp (name, "_OBJC_SYMBOLS", 13)) \
- objc_symbols_section (); \
- else if (!strncmp (name, "_OBJC_MODULES", 13)) \
- objc_module_info_section (); \
- else \
- data_section (); \
- } \
- else \
- data_section (); \
- } \
- while (0)
-
- /* Force the assembler to create all the Objective-C sections,
- so that their order is guaranteed. */
-
- #define OBJC_PROLOGUE \
- do { \
- extern void objc_class_section (); \
- extern void objc_meta_class_section (); \
- extern void objc_cat_cls_meth_section (); \
- extern void objc_cat_inst_meth_section (); \
- extern void objc_cls_meth_section (); \
- extern void objc_inst_meth_section (); \
- extern void objc_selector_refs_section (); \
- extern void objc_symbols_section (); \
- extern void objc_category_section (); \
- extern void objc_class_vars_section (); \
- extern void objc_instance_vars_section (); \
- extern void objc_module_info_section (); \
- extern void objc_selector_strs_section (); \
- \
- objc_class_section (); \
- objc_meta_class_section (); \
- objc_cat_cls_meth_section (); \
- objc_cat_inst_meth_section (); \
- objc_cls_meth_section (); \
- objc_inst_meth_section (); \
- objc_selector_refs_section (); \
- objc_symbols_section (); \
- objc_category_section (); \
- objc_class_vars_section (); \
- objc_instance_vars_section (); \
- objc_module_info_section (); \
- objc_selector_strs_section (); \
- } while (0)
- #endif
-
- /* We do not define JUMP_TABLES_IN_TEXT_SECTION, since we wish to keep
- the text section pure. There is no point in addressing the jump
- tables using pc relative addressing, since they are not in the text
- section, so we undefine CASE_VECTOR_PC_RELATIVE. This also
- causes the compiler to use absolute addresses in the jump table,
- so we redefine CASE_VECTOR_MODE to be SImode. */
-
- #undef CASE_VECTOR_MODE
- #define CASE_VECTOR_MODE SImode
-
- #undef CASE_VECTOR_PC_RELATIVE
-
- /* Don't treat addresses involving labels differently from symbol names.
- Previously, references to labels generated pc-relative addressing modes
- while references to symbol names generated absolute addressing modes. */
-
- #undef GO_IF_INDEXABLE_BASE(X, ADDR)
- #define GO_IF_INDEXABLE_BASE(X, ADDR) \
- { if (GET_CODE (X) == REG && REG_OK_FOR_BASE_P (X)) goto ADDR; }
-
- #define ALIGN_ASM_OP ".align"
-
- #undef ASM_OUTPUT_ALIGN
- #define ASM_OUTPUT_ALIGN(FILE,LOG) \
- if ((LOG) != 0) \
- fprintf (FILE, "\t%s %d\n", ALIGN_ASM_OP, (LOG))
-
- /* The maximum alignment which the object file format can support.
- For NeXT's Mach-O format, this is 2^15. */
-
- #define MAX_OFILE_ALIGNMENT 0x8000
-