1993-04-01 10:14:29 +08:00
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/* tc-mips.c -- header file for tc-mips.c.
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Copyright (C) 1993 Free Software Foundation, Inc.
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Contributed by the OSF and Ralph Campbell.
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Written by Keith Knowles and Ralph Campbell, working independently.
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Modified for ECOFF support by Ian Lance Taylor of Cygnus Support.
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This file is part of GAS.
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GAS 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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GAS 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 GAS; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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1995-07-06 00:10:50 +08:00
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#ifndef TC_MIPS
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1993-04-01 10:14:29 +08:00
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#define TC_MIPS
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#define TARGET_ARCH bfd_arch_mips
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#define ONLY_STANDARD_ESCAPES
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#define BACKSLASH_V
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#define WORKING_DOT_WORD 1
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#define OLD_FLOAT_READS
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* config/mips-opcode.h: Moved to opcode/mips.h.
* config/tc-mips.c: Include opcode/mips.h rather than
mips-opcode.h.
(append_insn): An extra NOP is only needed after instructions
which set HI or LO, not after instructions which read it.
(macro_build, mips_ip): Support new 'E', 'G' and 'B' arguments.
(macro): cfc1 and ctc1 now take "t,G" rather than "t,d".
* config/tc-mips.h (struct mips_opcode): Don't define.
* config/mips-big.mt, config/mips-lit.mt (TARG_CPU_DEPENDENTS):
Set to $(srcdir)/../include/opcode/mips.h.
Get the MIPS assembler up to speed with other gas changes:
* config/obj-ecoff.c (ecoff_set_vma, ecoff_frob_symbol):
Removed; don't change the symbol value.
(ecoff_build_symbols, ecoff_build_procs, ecoff_frob_file): Use
bfd_asymbol_value rather than S_GET_VALUE to include section
vma in symbol value.
(ecoff_frob_file): Ignore BSF_SECTION_SYM symbols, since ECOFF
doesn't output them. Set the vma of sections.
* config/obj-ecoff.h: Don't define obj_frob_symbol.
* config/tc-mips.c (tc_gen_reloc): Adjustment by section vma is no
longer necessary.
(various): use valueT rather than long.
1993-07-08 01:23:39 +08:00
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#define REPEAT_CONS_EXPRESSIONS
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1994-01-06 09:10:35 +08:00
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#define RELOC_EXPANSION_POSSIBLE
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#define MAX_RELOC_EXPANSION 3
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1995-05-04 09:56:40 +08:00
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#define LOCAL_LABELS_FB 1
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1993-04-01 10:14:29 +08:00
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1995-07-06 00:10:50 +08:00
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#define LOCAL_LABEL(name) mips_local_label (name)
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extern int mips_local_label PARAMS ((const char *));
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1993-04-01 10:14:29 +08:00
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1994-01-06 09:10:35 +08:00
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#define md_relax_frag(fragp, stretch) (0)
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1993-04-01 10:14:29 +08:00
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#define md_undefined_symbol(name) (0)
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#define md_operand(x)
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* config/tc-mips.c: Use USE_STDARG and USE_VARARGS instead of NO_STDARG &c.
* config/tc-mips.c (mips_target_format): Changed to a function, checking flavor
and byte order at run time.
(md_parse_option, cases OPTION_EB and OPTION_EL): Set target_big_endian here.
(md_begin): Not here.
* config/tc-mips.h (mips_target_format): Adjust declaration.
(TARGET_FORMAT): Call mips_target_format.
* config/tc-mips.h (USE_GLOBAL_POINTER_OPT): Define in terms of OUTPUT_FLAVOR.
* config/tc-mips.c (g_switch_value, g_switch_seen): Define unconditionally.
(md_begin, mips_ip, md_parse_option, s_change_sec, s_option, s_abicalls,
nopic_need_relax): Check USE_GLOBAL_POINTER_OPT at run time, instead of
compiling conditionally on GPOPT.
(GPOPT): Don't define.
(md_shortopts): Always include -G.
(RDATA_SECTION_NAME): Select at run time.
(md_begin): Test for ELF format at run time instead of compile time.
(mips_ip, s_change_sec): Ditto.
(md_parse_option, cases OPTION_CALL_SHARED and OPTION_NON_SHARED): Ditto.
(OPTION_CALL_SHARED, OPTION_NON_SHARED, mips_regmask_frag): Define
unconditionally.
1995-05-03 03:33:00 +08:00
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/* We permit PC relative difference expressions when generating
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embedded PIC code. */
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#define DIFF_EXPR_OK
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1993-04-01 10:14:29 +08:00
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#define LITTLE_ENDIAN 1234
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#define BIG_ENDIAN 4321
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* config/tc-mips.c: Use USE_STDARG and USE_VARARGS instead of NO_STDARG &c.
* config/tc-mips.c (mips_target_format): Changed to a function, checking flavor
and byte order at run time.
(md_parse_option, cases OPTION_EB and OPTION_EL): Set target_big_endian here.
(md_begin): Not here.
* config/tc-mips.h (mips_target_format): Adjust declaration.
(TARGET_FORMAT): Call mips_target_format.
* config/tc-mips.h (USE_GLOBAL_POINTER_OPT): Define in terms of OUTPUT_FLAVOR.
* config/tc-mips.c (g_switch_value, g_switch_seen): Define unconditionally.
(md_begin, mips_ip, md_parse_option, s_change_sec, s_option, s_abicalls,
nopic_need_relax): Check USE_GLOBAL_POINTER_OPT at run time, instead of
compiling conditionally on GPOPT.
(GPOPT): Don't define.
(md_shortopts): Always include -G.
(RDATA_SECTION_NAME): Select at run time.
(md_begin): Test for ELF format at run time instead of compile time.
(mips_ip, s_change_sec): Ditto.
(md_parse_option, cases OPTION_CALL_SHARED and OPTION_NON_SHARED): Ditto.
(OPTION_CALL_SHARED, OPTION_NON_SHARED, mips_regmask_frag): Define
unconditionally.
1995-05-03 03:33:00 +08:00
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/* Default to big endian. */
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1993-04-01 10:14:29 +08:00
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#ifndef TARGET_BYTES_LITTLE_ENDIAN
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* config/tc-mips.c: Use USE_STDARG and USE_VARARGS instead of NO_STDARG &c.
* config/tc-mips.c (mips_target_format): Changed to a function, checking flavor
and byte order at run time.
(md_parse_option, cases OPTION_EB and OPTION_EL): Set target_big_endian here.
(md_begin): Not here.
* config/tc-mips.h (mips_target_format): Adjust declaration.
(TARGET_FORMAT): Call mips_target_format.
* config/tc-mips.h (USE_GLOBAL_POINTER_OPT): Define in terms of OUTPUT_FLAVOR.
* config/tc-mips.c (g_switch_value, g_switch_seen): Define unconditionally.
(md_begin, mips_ip, md_parse_option, s_change_sec, s_option, s_abicalls,
nopic_need_relax): Check USE_GLOBAL_POINTER_OPT at run time, instead of
compiling conditionally on GPOPT.
(GPOPT): Don't define.
(md_shortopts): Always include -G.
(RDATA_SECTION_NAME): Select at run time.
(md_begin): Test for ELF format at run time instead of compile time.
(mips_ip, s_change_sec): Ditto.
(md_parse_option, cases OPTION_CALL_SHARED and OPTION_NON_SHARED): Ditto.
(OPTION_CALL_SHARED, OPTION_NON_SHARED, mips_regmask_frag): Define
unconditionally.
1995-05-03 03:33:00 +08:00
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#undef TARGET_BYTES_BIG_ENDIAN
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#define TARGET_BYTES_BIG_ENDIAN 1
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1993-04-01 10:14:29 +08:00
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#endif
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* config/tc-mips.c: Use USE_STDARG and USE_VARARGS instead of NO_STDARG &c.
* config/tc-mips.c (mips_target_format): Changed to a function, checking flavor
and byte order at run time.
(md_parse_option, cases OPTION_EB and OPTION_EL): Set target_big_endian here.
(md_begin): Not here.
* config/tc-mips.h (mips_target_format): Adjust declaration.
(TARGET_FORMAT): Call mips_target_format.
* config/tc-mips.h (USE_GLOBAL_POINTER_OPT): Define in terms of OUTPUT_FLAVOR.
* config/tc-mips.c (g_switch_value, g_switch_seen): Define unconditionally.
(md_begin, mips_ip, md_parse_option, s_change_sec, s_option, s_abicalls,
nopic_need_relax): Check USE_GLOBAL_POINTER_OPT at run time, instead of
compiling conditionally on GPOPT.
(GPOPT): Don't define.
(md_shortopts): Always include -G.
(RDATA_SECTION_NAME): Select at run time.
(md_begin): Test for ELF format at run time instead of compile time.
(mips_ip, s_change_sec): Ditto.
(md_parse_option, cases OPTION_CALL_SHARED and OPTION_NON_SHARED): Ditto.
(OPTION_CALL_SHARED, OPTION_NON_SHARED, mips_regmask_frag): Define
unconditionally.
1995-05-03 03:33:00 +08:00
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#if TARGET_BYTES_BIG_ENDIAN
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1993-04-01 10:14:29 +08:00
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#define BYTE_ORDER BIG_ENDIAN
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#else
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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* config/tc-mips.c: Use USE_STDARG and USE_VARARGS instead of NO_STDARG &c.
* config/tc-mips.c (mips_target_format): Changed to a function, checking flavor
and byte order at run time.
(md_parse_option, cases OPTION_EB and OPTION_EL): Set target_big_endian here.
(md_begin): Not here.
* config/tc-mips.h (mips_target_format): Adjust declaration.
(TARGET_FORMAT): Call mips_target_format.
* config/tc-mips.h (USE_GLOBAL_POINTER_OPT): Define in terms of OUTPUT_FLAVOR.
* config/tc-mips.c (g_switch_value, g_switch_seen): Define unconditionally.
(md_begin, mips_ip, md_parse_option, s_change_sec, s_option, s_abicalls,
nopic_need_relax): Check USE_GLOBAL_POINTER_OPT at run time, instead of
compiling conditionally on GPOPT.
(GPOPT): Don't define.
(md_shortopts): Always include -G.
(RDATA_SECTION_NAME): Select at run time.
(md_begin): Test for ELF format at run time instead of compile time.
(mips_ip, s_change_sec): Ditto.
(md_parse_option, cases OPTION_CALL_SHARED and OPTION_NON_SHARED): Ditto.
(OPTION_CALL_SHARED, OPTION_NON_SHARED, mips_regmask_frag): Define
unconditionally.
1995-05-03 03:33:00 +08:00
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/* The endianness of the target format may change based on command
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line arguments. */
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#define TARGET_FORMAT mips_target_format()
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extern const char *mips_target_format ();
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1993-04-01 10:14:29 +08:00
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struct mips_cl_insn {
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unsigned long insn_opcode;
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const struct mips_opcode *insn_mo;
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};
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1994-01-06 09:10:35 +08:00
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extern int tc_get_register PARAMS ((int frame));
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1993-10-07 02:36:20 +08:00
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* config/tc-mips.c: Use USE_STDARG and USE_VARARGS instead of NO_STDARG &c.
* config/tc-mips.c (mips_target_format): Changed to a function, checking flavor
and byte order at run time.
(md_parse_option, cases OPTION_EB and OPTION_EL): Set target_big_endian here.
(md_begin): Not here.
* config/tc-mips.h (mips_target_format): Adjust declaration.
(TARGET_FORMAT): Call mips_target_format.
* config/tc-mips.h (USE_GLOBAL_POINTER_OPT): Define in terms of OUTPUT_FLAVOR.
* config/tc-mips.c (g_switch_value, g_switch_seen): Define unconditionally.
(md_begin, mips_ip, md_parse_option, s_change_sec, s_option, s_abicalls,
nopic_need_relax): Check USE_GLOBAL_POINTER_OPT at run time, instead of
compiling conditionally on GPOPT.
(GPOPT): Don't define.
(md_shortopts): Always include -G.
(RDATA_SECTION_NAME): Select at run time.
(md_begin): Test for ELF format at run time instead of compile time.
(mips_ip, s_change_sec): Ditto.
(md_parse_option, cases OPTION_CALL_SHARED and OPTION_NON_SHARED): Ditto.
(OPTION_CALL_SHARED, OPTION_NON_SHARED, mips_regmask_frag): Define
unconditionally.
1995-05-03 03:33:00 +08:00
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#define md_parse_long_option(arg) mips_parse_long_option (arg)
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extern int mips_parse_long_option PARAMS ((const char *));
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1993-10-07 02:36:20 +08:00
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#define tc_frob_label(sym) mips_define_label (sym)
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extern void mips_define_label PARAMS ((struct symbol *));
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#define TC_CONS_FIX_NEW cons_fix_new_mips
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extern void cons_fix_new_mips ();
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1993-10-09 04:01:10 +08:00
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* config/tc-mips.c: Use USE_STDARG and USE_VARARGS instead of NO_STDARG &c.
* config/tc-mips.c (mips_target_format): Changed to a function, checking flavor
and byte order at run time.
(md_parse_option, cases OPTION_EB and OPTION_EL): Set target_big_endian here.
(md_begin): Not here.
* config/tc-mips.h (mips_target_format): Adjust declaration.
(TARGET_FORMAT): Call mips_target_format.
* config/tc-mips.h (USE_GLOBAL_POINTER_OPT): Define in terms of OUTPUT_FLAVOR.
* config/tc-mips.c (g_switch_value, g_switch_seen): Define unconditionally.
(md_begin, mips_ip, md_parse_option, s_change_sec, s_option, s_abicalls,
nopic_need_relax): Check USE_GLOBAL_POINTER_OPT at run time, instead of
compiling conditionally on GPOPT.
(GPOPT): Don't define.
(md_shortopts): Always include -G.
(RDATA_SECTION_NAME): Select at run time.
(md_begin): Test for ELF format at run time instead of compile time.
(mips_ip, s_change_sec): Ditto.
(md_parse_option, cases OPTION_CALL_SHARED and OPTION_NON_SHARED): Ditto.
(OPTION_CALL_SHARED, OPTION_NON_SHARED, mips_regmask_frag): Define
unconditionally.
1995-05-03 03:33:00 +08:00
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/* When generating embedded PIC code we must keep PC relative
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relocations. */
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#define TC_FORCE_RELOCATION(fixp) mips_force_relocation (fixp)
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extern int mips_force_relocation ();
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/* md_apply_fix sets fx_done correctly. */
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#define TC_HANDLE_FX_DONE 1
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1993-10-09 04:01:10 +08:00
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/* Register mask variables. These are set by the MIPS assembly code
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and used by ECOFF and possibly other object file formats. */
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extern unsigned long mips_gprmask;
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extern unsigned long mips_cprmask[4];
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1994-01-06 09:10:35 +08:00
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#ifdef OBJ_ELF
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1994-01-12 06:35:16 +08:00
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1994-01-06 09:10:35 +08:00
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#define elf_tc_final_processing mips_elf_final_processing
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extern void mips_elf_final_processing PARAMS ((void));
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1994-01-12 06:35:16 +08:00
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#define ELF_TC_SPECIAL_SECTIONS \
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{ ".sdata", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \
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{ ".sbss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \
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{ ".lit4", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \
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{ ".lit8", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \
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{ ".ucode", SHT_MIPS_UCODE, 0 }, \
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{ ".mdebug", SHT_MIPS_DEBUG, 0 },
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/* Other special sections not generated by the assembler: .reginfo,
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.liblist, .conflict, .gptab, .got, .dynamic, .rel.dyn. */
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1994-01-06 09:10:35 +08:00
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#endif
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extern void md_mips_end PARAMS ((void));
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#define md_end() md_mips_end()
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* config/tc-mips.c: Use USE_STDARG and USE_VARARGS instead of NO_STDARG &c.
* config/tc-mips.c (mips_target_format): Changed to a function, checking flavor
and byte order at run time.
(md_parse_option, cases OPTION_EB and OPTION_EL): Set target_big_endian here.
(md_begin): Not here.
* config/tc-mips.h (mips_target_format): Adjust declaration.
(TARGET_FORMAT): Call mips_target_format.
* config/tc-mips.h (USE_GLOBAL_POINTER_OPT): Define in terms of OUTPUT_FLAVOR.
* config/tc-mips.c (g_switch_value, g_switch_seen): Define unconditionally.
(md_begin, mips_ip, md_parse_option, s_change_sec, s_option, s_abicalls,
nopic_need_relax): Check USE_GLOBAL_POINTER_OPT at run time, instead of
compiling conditionally on GPOPT.
(GPOPT): Don't define.
(md_shortopts): Always include -G.
(RDATA_SECTION_NAME): Select at run time.
(md_begin): Test for ELF format at run time instead of compile time.
(mips_ip, s_change_sec): Ditto.
(md_parse_option, cases OPTION_CALL_SHARED and OPTION_NON_SHARED): Ditto.
(OPTION_CALL_SHARED, OPTION_NON_SHARED, mips_regmask_frag): Define
unconditionally.
1995-05-03 03:33:00 +08:00
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#define USE_GLOBAL_POINTER_OPT (OUTPUT_FLAVOR == bfd_target_ecoff_flavour \
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|| OUTPUT_FLAVOR == bfd_target_elf_flavour)
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1995-07-06 00:10:50 +08:00
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extern void mips_pop_insert PARAMS ((void));
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#define md_pop_insert() mips_pop_insert()
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extern void mips_flush_pending_output PARAMS ((void));
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#define md_flush_pending_output mips_flush_pending_output
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extern void mips_enable_auto_align PARAMS ((void));
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#define md_elf_section_change_hook() mips_enable_auto_align()
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extern void mips_init_after_args PARAMS ((void));
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#define tc_init_after_args mips_init_after_args
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#endif /* TC_MIPS */
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