bsd.h revision 117395
1/* Definitions for BSD assembler syntax for Intel 386 2 (actually AT&T syntax for insns and operands, 3 adapted to BSD conventions for symbol names and debugging.) 4 Copyright (C) 1988, 1996, 2000, 2002 Free Software Foundation, Inc. 5 6This file is part of GNU CC. 7 8GNU CC is free software; you can redistribute it and/or modify 9it under the terms of the GNU General Public License as published by 10the Free Software Foundation; either version 2, or (at your option) 11any later version. 12 13GNU CC is distributed in the hope that it will be useful, 14but WITHOUT ANY WARRANTY; without even the implied warranty of 15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16GNU General Public License for more details. 17 18You should have received a copy of the GNU General Public License 19along with GNU CC; see the file COPYING. If not, write to 20the Free Software Foundation, 59 Temple Place - Suite 330, 21Boston, MA 02111-1307, USA. */ 22 23/* Use the Sequent Symmetry assembler syntax. */ 24 25/* Define the syntax of pseudo-ops, labels and comments. */ 26 27/* Prefix for internally generated assembler labels. If we aren't using 28 underscores, we are using prefix `.'s to identify labels that should 29 be ignored, as in `i386/gas.h' --karl@cs.umb.edu */ 30 31#define LPREFIX "L" 32 33/* Assembler pseudos to introduce constants of various size. */ 34 35#define ASM_SHORT "\t.word\t" 36#define ASM_LONG "\t.long\t" 37#define ASM_QUAD "\t.quad\t" /* Should not be used for 32bit compilation. */ 38 39/* Output at beginning of assembler file. 40 ??? I am skeptical of this -- RMS. */ 41 42#define ASM_FILE_START(FILE) \ 43 do { output_file_directive (FILE, main_input_filename); \ 44 } while (0) 45 46/* This was suggested, but it shouldn't be right for DBX output. -- RMS 47 #define ASM_OUTPUT_SOURCE_FILENAME(FILE, NAME) */ 48 49 50/* Define the syntax of labels and symbol definitions/declarations. */ 51 52/* This is how to output an assembler line 53 that says to advance the location counter by SIZE bytes. */ 54 55#define ASM_OUTPUT_SKIP(FILE,SIZE) \ 56 fprintf (FILE, "\t.space %u\n", (SIZE)) 57 58/* Define the syntax of labels and symbol definitions/declarations. */ 59 60/* This says how to output an assembler line 61 to define a global common symbol. */ 62 63#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ 64( fputs (".comm ", (FILE)), \ 65 assemble_name ((FILE), (NAME)), \ 66 fprintf ((FILE), ",%u\n", (ROUNDED))) 67 68/* This says how to output an assembler line 69 to define a local common symbol. */ 70 71#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ 72( fputs (".lcomm ", (FILE)), \ 73 assemble_name ((FILE), (NAME)), \ 74 fprintf ((FILE), ",%u\n", (ROUNDED))) 75 76/* This is how to output an assembler line 77 that says to advance the location counter 78 to a multiple of 2**LOG bytes. */ 79 80#define ASM_OUTPUT_ALIGN(FILE,LOG) \ 81 if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", (LOG)) 82 83/* This is how to store into the string BUF 84 the symbol_ref name of an internal numbered label where 85 PREFIX is the class of label and NUM is the number within the class. 86 This is suitable for output with `assemble_name'. */ 87 88#define ASM_GENERATE_INTERNAL_LABEL(BUF,PREFIX,NUMBER) \ 89 sprintf ((BUF), "*%s%ld", (PREFIX), (long)(NUMBER)) 90 91/* This is how to output an internal numbered label where 92 PREFIX is the class of label and NUM is the number within the class. */ 93 94#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ 95 fprintf (FILE, "%s%d:\n", PREFIX, NUM) 96 97/* The prefix to add to user-visible assembler symbols. */ 98 99#define USER_LABEL_PREFIX "_" 100 101/* Sequent has some changes in the format of DBX symbols. */ 102#define DBX_NO_XREFS 1 103 104/* Don't split DBX symbols into continuations. */ 105#define DBX_CONTIN_LENGTH 0 106