269 lines
7.7 KiB
C
269 lines
7.7 KiB
C
/* Definitions of target machine for GNU compiler, for ARM with a.out
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Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
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Free Software Foundation, Inc.
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Contributed by Richard Earnshaw (rearnsha@armltd.co.uk).
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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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#ifndef ARM_OS_NAME
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#define ARM_OS_NAME "(generic)"
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#endif
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/* The text to go at the start of the assembler file */
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#ifndef ASM_FILE_START
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#define ASM_FILE_START(STREAM) \
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{ \
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asm_fprintf (STREAM,"%Rrfp\t.req\t%Rr9\n"); \
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asm_fprintf (STREAM,"%Rsl\t.req\t%Rr10\n"); \
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asm_fprintf (STREAM,"%Rfp\t.req\t%Rr11\n"); \
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asm_fprintf (STREAM,"%Rip\t.req\t%Rr12\n"); \
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asm_fprintf (STREAM,"%Rsp\t.req\t%Rr13\n"); \
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asm_fprintf (STREAM,"%Rlr\t.req\t%Rr14\n"); \
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asm_fprintf (STREAM,"%Rpc\t.req\t%Rr15\n"); \
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}
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#endif
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#ifndef ASM_APP_ON
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#define ASM_APP_ON ""
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#endif
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#ifndef ASM_APP_OFF
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#define ASM_APP_OFF ""
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#endif
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/* Switch to the text or data segment. */
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#define TEXT_SECTION_ASM_OP "\t.text"
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#define DATA_SECTION_ASM_OP "\t.data"
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#define BSS_SECTION_ASM_OP "\t.bss"
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/* Note: If USER_LABEL_PREFIX or LOCAL_LABEL_PREFIX are changed,
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make sure that this change is reflected in the function
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coff_arm_is_local_label_name() in bfd/coff-arm.c */
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#ifndef REGISTER_PREFIX
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#define REGISTER_PREFIX ""
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#endif
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#ifndef USER_LABEL_PREFIX
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#define USER_LABEL_PREFIX "_"
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#endif
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#ifndef LOCAL_LABEL_PREFIX
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#define LOCAL_LABEL_PREFIX ""
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#endif
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/* The assembler's names for the registers. */
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#ifndef REGISTER_NAMES
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#define REGISTER_NAMES \
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{ \
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"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
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"r8", "r9", "sl", "fp", "ip", "sp", "lr", "pc", \
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"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
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"cc", "sfp", "afp" \
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}
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#endif
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#ifndef ADDITIONAL_REGISTER_NAMES
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#define ADDITIONAL_REGISTER_NAMES \
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{ \
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{"a1", 0}, \
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{"a2", 1}, \
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{"a3", 2}, \
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{"a4", 3}, \
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{"v1", 4}, \
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{"v2", 5}, \
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{"v3", 6}, \
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{"v4", 7}, \
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{"v5", 8}, \
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{"v6", 9}, \
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{"rfp", 9}, /* Gcc used to call it this */ \
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{"sb", 9}, \
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{"v7", 10}, \
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{"r10", 10}, /* sl */ \
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{"r11", 11}, /* fp */ \
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{"r12", 12}, /* ip */ \
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{"r13", 13}, /* sp */ \
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{"r14", 14}, /* lr */ \
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{"r15", 15} /* pc */ \
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}
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#endif
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/* Arm Assembler barfs on dollars */
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#define DOLLARS_IN_IDENTIFIERS 0
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#ifndef NO_DOLLAR_IN_LABEL
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#define NO_DOLLAR_IN_LABEL 1
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#endif
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/* Generate DBX debugging information. riscix.h will undefine this because
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the native assembler does not support stabs. */
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#ifndef DBX_DEBUGGING_INFO
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#define DBX_DEBUGGING_INFO 1
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#endif
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/* Acorn dbx moans about continuation chars, so don't use any. */
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#ifndef DBX_CONTIN_LENGTH
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#define DBX_CONTIN_LENGTH 0
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#endif
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/* Output a source filename for the debugger. RISCiX dbx insists that the
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``desc'' field is set to compiler version number >= 315 (sic). */
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#define DBX_OUTPUT_MAIN_SOURCE_FILENAME(STREAM, NAME) \
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do \
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{ \
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fprintf (STREAM, ".stabs "); \
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output_quoted_string (STREAM, NAME); \
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fprintf (STREAM, ",%d,0,315,%s\n", N_SO, <ext_label_name[1]); \
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text_section (); \
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ASM_OUTPUT_INTERNAL_LABEL (STREAM, "Ltext", 0); \
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} \
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while (0)
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/* Output a function label definition. */
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#ifndef ASM_DECLARE_FUNCTION_NAME
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#define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL) \
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do \
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{ \
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ARM_DECLARE_FUNCTION_NAME (STREAM, NAME, DECL); \
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ASM_OUTPUT_LABEL (STREAM, NAME); \
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} \
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while (0)
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#endif
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#ifndef ASM_OUTPUT_LABEL
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#define ASM_OUTPUT_LABEL(STREAM, NAME) \
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do \
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{ \
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assemble_name (STREAM,NAME); \
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fputs (":\n", STREAM); \
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} \
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while (0)
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#endif
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/* Output a globalising directive for a label. */
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#ifndef ASM_GLOBALIZE_LABEL
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#define ASM_GLOBALIZE_LABEL(STREAM, NAME) \
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do \
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{ \
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fprintf (STREAM, "\t.global\t"); \
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assemble_name (STREAM, NAME); \
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fputc ('\n',STREAM); \
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} \
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while (0)
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#endif
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/* Make an internal label into a string. */
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#ifndef ASM_GENERATE_INTERNAL_LABEL
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#define ASM_GENERATE_INTERNAL_LABEL(STRING, PREFIX, NUM) \
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sprintf (STRING, "*%s%s%u", LOCAL_LABEL_PREFIX, PREFIX, (unsigned int)(NUM))
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#endif
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/* Construct a private name. */
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#define ASM_FORMAT_PRIVATE_NAME(OUTVAR, NAME, NUMBER) \
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((OUTVAR) = (char *) alloca (strlen (NAME) + 10), \
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sprintf (OUTVAR, "%s.%d", NAME, NUMBER))
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/* Output an element of a dispatch table. */
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#define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \
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asm_fprintf (STREAM, "\t.word\t%LL%d\n", VALUE)
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#define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM, BODY, VALUE, REL) \
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do \
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{ \
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if (TARGET_ARM) \
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asm_fprintf (STREAM, "\tb\t%LL%d\n", VALUE); \
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else \
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asm_fprintf (STREAM, "\t.word\t%LL%d-%LL%d\n", VALUE, REL); \
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} \
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while (0)
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#undef ASM_OUTPUT_ASCII
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#define ASM_OUTPUT_ASCII(STREAM, PTR, LEN) \
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output_ascii_pseudo_op (STREAM, (const unsigned char *)(PTR), LEN)
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/* Output a gap. In fact we fill it with nulls. */
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#undef ASM_OUTPUT_SKIP
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#define ASM_OUTPUT_SKIP(STREAM, NBYTES) \
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fprintf (STREAM, "\t.space\t%d\n", NBYTES)
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/* Align output to a power of two. Horrible /bin/as. */
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#ifndef ASM_OUTPUT_ALIGN
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#define ASM_OUTPUT_ALIGN(STREAM, POWER) \
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do \
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{ \
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register int amount = 1 << (POWER); \
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\
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if (amount == 2) \
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fprintf (STREAM, "\t.even\n"); \
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else if (amount != 1) \
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fprintf (STREAM, "\t.align\t%d\n", amount - 4); \
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} \
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while (0)
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#endif
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/* Output a common block */
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#ifndef ASM_OUTPUT_COMMON
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#define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED) \
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do \
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{ \
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fprintf (STREAM, "\t.comm\t"); \
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assemble_name (STREAM, NAME); \
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asm_fprintf (STREAM, ", %d\t%@ %d\n", \
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ROUNDED, SIZE); \
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} \
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while (0)
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#endif
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/* Output a local common block. /bin/as can't do this, so hack a
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`.space' into the bss segment. Note that this is *bad* practice,
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which is guaranteed NOT to work since it doesn't define STATIC
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COMMON space but merely STATIC BSS space. */
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#ifndef ASM_OUTPUT_ALIGNED_LOCAL
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#define ASM_OUTPUT_ALIGNED_LOCAL(STREAM, NAME, SIZE, ALIGN) \
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do \
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{ \
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bss_section (); \
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ASM_OUTPUT_ALIGN (STREAM, floor_log2 (ALIGN / BITS_PER_UNIT)); \
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ASM_OUTPUT_LABEL (STREAM, NAME); \
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fprintf (STREAM, "\t.space\t%d\n", SIZE); \
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} \
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while (0)
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#endif
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/* Output a zero-initialized block. */
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#ifndef ASM_OUTPUT_ALIGNED_BSS
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#define ASM_OUTPUT_ALIGNED_BSS(STREAM, DECL, NAME, SIZE, ALIGN) \
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asm_output_aligned_bss (STREAM, DECL, NAME, SIZE, ALIGN)
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#endif
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/* Output a source line for the debugger. */
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/* #define ASM_OUTPUT_SOURCE_LINE(STREAM,LINE) */
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/* Output a #ident directive. */
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#ifndef ASM_OUTPUT_IDENT
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#define ASM_OUTPUT_IDENT(STREAM,STRING) \
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asm_fprintf (STREAM, "%@ - - - ident %s\n", STRING)
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#endif
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#ifndef ASM_COMMENT_START
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#define ASM_COMMENT_START "@"
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#endif
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/* This works for GAS and some other assemblers. */
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#define SET_ASM_OP "\t.set\t"
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