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/* Definitions of target machine for GNU compiler, for ARM with a.out
Copyright (C) 1995, 1996 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 ARM_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]; \
arm_increase_location (12); \
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]; \
arm_increase_location (8); \
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; \
arm_increase_location (4); \
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_addr_const (STREAM, (EXP)), \
arm_increase_location (4), \
fputc ('\n', STREAM))
#define ASM_OUTPUT_SHORT(STREAM, EXP) \
(fprintf (STREAM, "\t.short\t"), \
output_addr_const (STREAM, (EXP)), \
arm_increase_location (2), \
fputc ('\n', STREAM))
#define ASM_OUTPUT_CHAR(STREAM, EXP) \
(fprintf (STREAM, "\t.byte\t"), \
output_addr_const (STREAM, (EXP)), \
arm_increase_location (1), \
fputc ('\n', STREAM))
#define ASM_OUTPUT_BYTE(STREAM, VALUE) \
(fprintf (STREAM, "\t.byte\t%d\n", VALUE), \
arm_increase_location (1))
#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) \
(arm_increase_location (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); \
extern int arm_text_location; \
\
if (amount == 2) \
fprintf (STREAM, "\t.even\n"); \
else if (amount != 1) \
fprintf (STREAM, "\t.align\t%d\n", amount - 4); \
\
if (in_text_section ()) \
arm_text_location = ((arm_text_location + amount - 1) \
& ~(amount - 1)); \
} 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) \
output_lcomm_directive (STREAM, NAME, SIZE, ALIGN)
/* 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
#include "arm/arm.h"
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