/* Definitions of target machine for GNU compiler, for ARM with a.out Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. Contributed by Richard Earnshaw (rearnsha@armltd.co.uk). 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef ARM_OS_NAME #define ARM_OS_NAME "(generic)" #endif /* The text to go at the start of the assembler file */ #define ASM_FILE_START(STREAM) \ { \ fprintf (STREAM,"%srfp\t.req\t%sr9\n", REGISTER_PREFIX, REGISTER_PREFIX); \ fprintf (STREAM,"%ssl\t.req\t%sr10\n", REGISTER_PREFIX, REGISTER_PREFIX); \ fprintf (STREAM,"%sfp\t.req\t%sr11\n", REGISTER_PREFIX, REGISTER_PREFIX); \ fprintf (STREAM,"%sip\t.req\t%sr12\n", REGISTER_PREFIX, REGISTER_PREFIX); \ fprintf (STREAM,"%ssp\t.req\t%sr13\n", REGISTER_PREFIX, REGISTER_PREFIX); \ fprintf (STREAM,"%slr\t.req\t%sr14\n", REGISTER_PREFIX, REGISTER_PREFIX); \ fprintf (STREAM,"%spc\t.req\t%sr15\n", REGISTER_PREFIX, REGISTER_PREFIX); \ } #define ASM_APP_ON "" #define ASM_APP_OFF "" /* Switch to the text or data segment. */ #define TEXT_SECTION_ASM_OP ".text" #define DATA_SECTION_ASM_OP ".data" #define BSS_SECTION_ASM_OP ".bss" #define REGISTER_PREFIX "" #define USER_LABEL_PREFIX "_" #define LOCAL_LABEL_PREFIX "" /* The assembler's names for the registers. */ #ifndef REGISTER_NAMES #define REGISTER_NAMES \ { \ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ "r8", "r9", "sl", "fp", "ip", "sp", "lr", "pc", \ "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \ "cc", "sfp", "afp" \ } #endif #ifndef ADDITIONAL_REGISTER_NAMES #define ADDITIONAL_REGISTER_NAMES \ { \ {"a1", 0}, \ {"a2", 1}, \ {"a3", 2}, \ {"a4", 3}, \ {"v1", 4}, \ {"v2", 5}, \ {"v3", 6}, \ {"v4", 7}, \ {"v5", 8}, \ {"v6", 9}, \ {"rfp", 9}, /* Gcc used to call it this */ \ {"sb", 9}, \ {"v7", 10}, \ {"r10", 10}, /* sl */ \ {"r11", 11}, /* fp */ \ {"r12", 12}, /* ip */ \ {"r13", 13}, /* sp */ \ {"r14", 14}, /* lr */ \ {"r15", 15} /* pc */ \ } #endif /* Arm Assembler barfs on dollars */ #define DOLLARS_IN_IDENTIFIERS 0 #define NO_DOLLAR_IN_LABEL /* DBX register number for a given compiler register number */ #define DBX_REGISTER_NUMBER(REGNO) (REGNO) /* Generate DBX debugging information. riscix.h will undefine this because the native assembler does not support stabs. */ #define DBX_DEBUGGING_INFO 1 /* Acorn dbx moans about continuation chars, so don't use any. */ #ifndef DBX_CONTIN_LENGTH #define DBX_CONTIN_LENGTH 0 #endif /* Output a source filename for the debugger. RISCiX dbx insists that the ``desc'' field is set to compiler version number >= 315 (sic). */ #define DBX_OUTPUT_MAIN_SOURCE_FILENAME(STREAM,NAME) \ do { \ fprintf (STREAM, ".stabs \"%s\",%d,0,315,%s\n", (NAME), N_SO, \ <ext_label_name[1]); \ text_section (); \ ASM_OUTPUT_INTERNAL_LABEL (STREAM, "Ltext", 0); \ } while (0) /* Output a function label definition. */ #define ASM_DECLARE_FUNCTION_NAME(STREAM,NAME,DECL) \ ASM_OUTPUT_LABEL(STREAM, NAME) #define ASM_OUTPUT_LABEL(STREAM,NAME) \ do { \ assemble_name (STREAM,NAME); \ fputs (":\n", STREAM); \ } while (0) /* Output a globalising directive for a label. */ #define ASM_GLOBALIZE_LABEL(STREAM,NAME) \ (fprintf (STREAM, "\t.global\t"), \ assemble_name (STREAM, NAME), \ fputc ('\n',STREAM)) \ /* Make an internal label into a string. */ #define ASM_GENERATE_INTERNAL_LABEL(STRING, PREFIX, NUM) \ sprintf (STRING, "*%s%s%d", LOCAL_LABEL_PREFIX, PREFIX, NUM) /* Nothing special is done about jump tables */ /* #define ASM_OUTPUT_CASE_LABEL(STREAM,PREFIX,NUM,TABLE) */ /* #define ASM_OUTPUT_CASE_END(STREAM,NUM,TABLE) */ /* Construct a private name. */ #define ASM_FORMAT_PRIVATE_NAME(OUTVAR,NAME,NUMBER) \ ((OUTVAR) = (char *) alloca (strlen (NAME) + 10), \ sprintf ((OUTVAR), "%s.%d", (NAME), (NUMBER))) /* Output an element of a dispatch table. */ #define ASM_OUTPUT_ADDR_VEC_ELT(STREAM,VALUE) \ fprintf (STREAM, "\t.word\t%sL%d\n", LOCAL_LABEL_PREFIX, VALUE) #define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM,VALUE,REL) \ fprintf (STREAM, "\tb\t%sL%d\n", LOCAL_LABEL_PREFIX, (VALUE)) /* Output various types of constants. For real numbers we output hex, with a comment containing the "human" value, this allows us to pass NaN's which the riscix assembler doesn't understand (it also makes cross-assembling less likely to fail). */ #define ASM_OUTPUT_LONG_DOUBLE(STREAM,VALUE) \ do { char dstr[30]; \ long l[3]; \ REAL_VALUE_TO_TARGET_LONG_DOUBLE (VALUE, l); \ REAL_VALUE_TO_DECIMAL (VALUE, "%.20g", dstr); \ fprintf (STREAM, "\t.long 0x%lx,0x%lx,0x%lx\t%s long double %s\n", \ l[0], l[1], l[2], ASM_COMMENT_START, dstr); \ } while (0) #define ASM_OUTPUT_DOUBLE(STREAM, VALUE) \ do { char dstr[30]; \ long l[2]; \ REAL_VALUE_TO_TARGET_DOUBLE (VALUE, l); \ REAL_VALUE_TO_DECIMAL (VALUE, "%.14g", dstr); \ fprintf (STREAM, "\t.long 0x%lx, 0x%lx\t%s double %s\n", l[0], \ l[1], ASM_COMMENT_START, dstr); \ } while (0) #define ASM_OUTPUT_FLOAT(STREAM, VALUE) \ do { char dstr[30]; \ long l; \ REAL_VALUE_TO_TARGET_SINGLE (VALUE, l); \ REAL_VALUE_TO_DECIMAL (VALUE, "%.7g", dstr); \ fprintf (STREAM, "\t.word 0x%lx\t%s float %s\n", l, \ ASM_COMMENT_START, dstr); \ } while (0); #define ASM_OUTPUT_INT(STREAM, EXP) \ { \ fprintf (STREAM, "\t.word\t"); \ OUTPUT_INT_ADDR_CONST (STREAM, (EXP)); \ fputc ('\n', STREAM); \ } #define ASM_OUTPUT_SHORT(STREAM, EXP) \ (fprintf (STREAM, "\t.short\t"), \ output_addr_const (STREAM, (EXP)), \ fputc ('\n', STREAM)) #define ASM_OUTPUT_CHAR(STREAM, EXP) \ (fprintf (STREAM, "\t.byte\t"), \ output_addr_const (STREAM, (EXP)), \ fputc ('\n', STREAM)) #define ASM_OUTPUT_BYTE(STREAM, VALUE) \ fprintf (STREAM, "\t.byte\t%d\n", VALUE) #define ASM_OUTPUT_ASCII(STREAM, PTR, LEN) \ output_ascii_pseudo_op ((STREAM), (unsigned char *)(PTR), (LEN)) /* Output a gap. In fact we fill it with nulls. */ #define ASM_OUTPUT_SKIP(STREAM, NBYTES) \ fprintf (STREAM, "\t.space\t%d\n", NBYTES) /* Align output to a power of two. Horrible /bin/as. */ #define ASM_OUTPUT_ALIGN(STREAM, POWER) \ do \ { \ register int amount = 1 << (POWER); \ \ if (amount == 2) \ fprintf (STREAM, "\t.even\n"); \ else if (amount != 1) \ fprintf (STREAM, "\t.align\t%d\n", amount - 4); \ } while (0) /* Output a common block */ #define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED) \ (fprintf (STREAM, "\t.comm\t"), \ assemble_name ((STREAM), (NAME)), \ fprintf(STREAM, ", %d\t%s %d\n", ROUNDED, ASM_COMMENT_START, SIZE)) /* Output a local common block. /bin/as can't do this, so hack a `.space' into the bss segment. Note that this is *bad* practice. */ #define ASM_OUTPUT_ALIGNED_LOCAL(STREAM,NAME,SIZE,ALIGN) \ do { \ bss_section (); \ ASM_OUTPUT_ALIGN (STREAM, floor_log2 (ALIGN / BITS_PER_UNIT)); \ ASM_OUTPUT_LABEL (STREAM, NAME); \ fprintf (STREAM, "\t.space\t%d\n", SIZE); \ } while (0) /* Output a zero-initialized block. */ #define ASM_OUTPUT_ALIGNED_BSS(STREAM,DECL,NAME,SIZE,ALIGN) \ asm_output_aligned_bss(STREAM, DECL, NAME, SIZE, ALIGN) /* Output a source line for the debugger. */ /* #define ASM_OUTPUT_SOURCE_LINE(STREAM,LINE) */ /* Output a #ident directive. */ #define ASM_OUTPUT_IDENT(STREAM,STRING) \ fprintf (STREAM,"- - - ident %s\n",STRING) /* The assembler's parentheses characters. */ #define ASM_OPEN_PAREN "(" #define ASM_CLOSE_PAREN ")" #ifndef ASM_COMMENT_START #define ASM_COMMENT_START "@" #endif /* This works for GAS and some other assemblers. */ #define SET_ASM_OP ".set" #include "arm/arm.h"