gas/config/tc-sh.h - binutils-gdb - Git at Google

 /* This file is tc-sh.h
    Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
    Free Software Foundation, Inc.

    This file is part of GAS, the GNU Assembler.

    GAS 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.

    GAS 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 GAS; see the file COPYING.  If not, write to
    the Free Software Foundation, 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */

 #define TC_SH

 #define TARGET_BYTES_BIG_ENDIAN 0

 #define TARGET_ARCH bfd_arch_sh

 #if ANSI_PROTOTYPES
 struct segment_info_struct;
 struct internal_reloc;
 #endif

 /* Whether in little endian mode.  */
 extern int shl;

 /* Whether -relax was used.  */
 extern int sh_relax;

 /* Whether -small was used.  */
 extern int sh_small;

 /* Don't try to break words.  */
 #define WORKING_DOT_WORD

 /* All SH instructions are multiples of 16 bits.  */
 #define DWARF2_LINE_MIN_INSN_LENGTH 2

 /* We require .long, et. al., to be aligned correctly.  */
 #define md_cons_align(nbytes) sh_cons_align (nbytes)
 extern void sh_cons_align PARAMS ((int));

 /* When relaxing, we need to generate relocations for alignment
    directives.  */
 #define HANDLE_ALIGN(frag) sh_handle_align (frag)
 extern void sh_handle_align PARAMS ((fragS *));

 #define MAX_MEM_FOR_RS_ALIGN_CODE (1 + 2)

 /* We need to force out some relocations when relaxing.  */
 #define TC_FORCE_RELOCATION(fix) sh_force_relocation (fix)
 extern int sh_force_relocation ();

 #ifdef OBJ_ELF
 #define obj_fix_adjustable(fixP) sh_fix_adjustable(fixP)
 struct fix;
 extern boolean sh_fix_adjustable PARAMS ((struct fix *));

 /* This arranges for gas/write.c to not apply a relocation if
    obj_fix_adjustable() says it is not adjustable.  */
 #define TC_FIX_ADJUSTABLE(fixP) obj_fix_adjustable (fixP)
 #endif

 #define IGNORE_NONSTANDARD_ESCAPES

 #define LISTING_HEADER (shl ? "Hitachi Super-H GAS Little Endian" : "Hitachi Super-H GAS Big Endian")

 #define md_operand(x)

 extern const struct relax_type md_relax_table[];
 #define TC_GENERIC_RELAX_TABLE md_relax_table

 /* We record, for each section, whether we have most recently output a
    CODE reloc or a DATA reloc.  */
 struct sh_segment_info_type
 {
   int in_code : 1;
 };
 #define TC_SEGMENT_INFO_TYPE struct sh_segment_info_type

 /* We call a routine to emit a reloc for a label, so that the linker
    can align loads and stores without crossing a label.  */
 extern void sh_frob_label PARAMS ((void));
 #define tc_frob_label(sym) sh_frob_label ()

 /* We call a routine to flush pending output in order to output a DATA
    reloc when required.  */
 extern void sh_flush_pending_output PARAMS ((void));
 #define md_flush_pending_output() sh_flush_pending_output ()

 #ifdef BFD_ASSEMBLER
 #define tc_frob_file_before_adjust sh_frob_file
 #else
 #define tc_frob_file sh_frob_file
 #endif
 extern void sh_frob_file PARAMS ((void));

 #ifdef OBJ_COFF
 /* COFF specific definitions.  */

 #define DO_NOT_STRIP 0

 /* This macro translates between an internal fix and an coff reloc type */
 #define TC_COFF_FIX2RTYPE(fix) ((fix)->fx_r_type)

 #define BFD_ARCH TARGET_ARCH

 #define COFF_MAGIC (shl ? SH_ARCH_MAGIC_LITTLE : SH_ARCH_MAGIC_BIG)

 /* We need to write out relocs which have not been completed.  */
 #define TC_COUNT_RELOC(fix) ((fix)->fx_addsy != NULL)

 #define TC_RELOC_MANGLE(seg, fix, int, paddr) \
   sh_coff_reloc_mangle ((seg), (fix), (int), (paddr))
 extern void sh_coff_reloc_mangle
   PARAMS ((struct segment_info_struct *, struct fix *,
 	   struct internal_reloc *, unsigned int));

 #define tc_coff_symbol_emit_hook(a) ; /* not used */

 #define NEED_FX_R_TYPE 1

 #define TC_KEEP_FX_OFFSET 1

 #define TC_COFF_SIZEMACHDEP(frag) tc_coff_sizemachdep(frag)
 extern int tc_coff_sizemachdep PARAMS ((fragS *));

 #ifdef BFD_ASSEMBLER
 #define SEG_NAME(SEG) segment_name (SEG)
 #else
 #define SEG_NAME(SEG) obj_segment_name (SEG)
 #endif

 /* We align most sections to a 16 byte boundary.  */
 #define SUB_SEGMENT_ALIGN(SEG)				\
   (strncmp (SEG_NAME (SEG), ".stabstr", 8) == 0		\
    ? 0							\
    : ((strncmp (SEG_NAME (SEG), ".stab", 5) == 0	\
        || strcmp (SEG_NAME (SEG), ".ctors") == 0	\
        || strcmp (SEG_NAME (SEG), ".dtors") == 0)	\
       ? 2						\
       : (sh_small ? 2 : 4)))

 #endif /* OBJ_COFF */

 #ifdef OBJ_ELF
 /* ELF specific definitions.  */

 /* Whether or not the target is big endian */
 extern int target_big_endian;

 #ifdef TE_LINUX
 #define TARGET_FORMAT (shl ? "elf32-sh-linux" : "elf32-shbig-linux")
 #else
 #define TARGET_FORMAT (shl ? "elf32-shl" : "elf32-sh")
 #endif

 #define elf_tc_final_processing sh_elf_final_processing
 extern void sh_elf_final_processing PARAMS ((void));

 #define DIFF_EXPR_OK		/* foo-. gets turned into PC relative relocs */

 #define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"

 /* This is the relocation type for direct references to
    GLOBAL_OFFSET_TABLE.  It comes up in complicated expressions such
    as _GLOBAL_OFFSET_TABLE_+[.-.L284], which cannot be expressed
    normally with the regular expressions.  The fixup specified here
    when used at runtime implies that we should add the address of the
    GOT to the specified location, and as a result we have simplified
    the expression into something we can use.  */
 #define TC_RELOC_GLOBAL_OFFSET_TABLE BFD_RELOC_SH_GOTPC

 /* This expression evaluates to false if the relocation is for a local object
    for which we still want to do the relocation at runtime.  True if we
    are willing to perform this relocation while building the .o file.
    This is only used for pcrel relocations, so GOTOFF does not need to be
    checked here.  I am not sure if some of the others are ever used with
    pcrel, but it is easier to be safe than sorry.

    We can't resolve references to the GOT or the PLT when creating the
    object file, since these tables are only created by the linker.
    Also, if the symbol is global, weak, common or not defined, the
    assembler can't compute the appropriate reloc, since its location
    can only be determined at link time.  */

 #define TC_RELOC_RTSYM_LOC_FIXUP(FIX)				\
   ((FIX)->fx_r_type != BFD_RELOC_32_PLT_PCREL			\
    && (FIX)->fx_r_type != BFD_RELOC_32_GOT_PCREL		\
    && (FIX)->fx_r_type != BFD_RELOC_SH_GOTPC			\
    && ((FIX)->fx_addsy == NULL					\
        || (! S_IS_EXTERNAL ((FIX)->fx_addsy)			\
 	   && ! S_IS_WEAK ((FIX)->fx_addsy)			\
 	   && S_IS_DEFINED ((FIX)->fx_addsy)			\
 	   && ! S_IS_COMMON ((FIX)->fx_addsy))))

 #endif /* OBJ_ELF */
	/* This file is tc-sh.h
	Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
	Free Software Foundation, Inc.

	This file is part of GAS, the GNU Assembler.

	GAS 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.

	GAS 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 GAS; see the file COPYING. If not, write to
	the Free Software Foundation, 59 Temple Place - Suite 330,
	Boston, MA 02111-1307, USA. */

	#define TC_SH

	#define TARGET_BYTES_BIG_ENDIAN 0

	#define TARGET_ARCH bfd_arch_sh

	#if ANSI_PROTOTYPES
	struct segment_info_struct;
	struct internal_reloc;
	#endif

	/* Whether in little endian mode. */
	extern int shl;

	/* Whether -relax was used. */
	extern int sh_relax;

	/* Whether -small was used. */
	extern int sh_small;

	/* Don't try to break words. */
	#define WORKING_DOT_WORD

	/* All SH instructions are multiples of 16 bits. */
	#define DWARF2_LINE_MIN_INSN_LENGTH 2

	/* We require .long, et. al., to be aligned correctly. */
	#define md_cons_align(nbytes) sh_cons_align (nbytes)
	extern void sh_cons_align PARAMS ((int));

	/* When relaxing, we need to generate relocations for alignment
	directives. */
	#define HANDLE_ALIGN(frag) sh_handle_align (frag)
	extern void sh_handle_align PARAMS ((fragS *));

	#define MAX_MEM_FOR_RS_ALIGN_CODE (1 + 2)

	/* We need to force out some relocations when relaxing. */
	#define TC_FORCE_RELOCATION(fix) sh_force_relocation (fix)
	extern int sh_force_relocation ();

	#ifdef OBJ_ELF
	#define obj_fix_adjustable(fixP) sh_fix_adjustable(fixP)
	struct fix;
	extern boolean sh_fix_adjustable PARAMS ((struct fix *));

	/* This arranges for gas/write.c to not apply a relocation if
	obj_fix_adjustable() says it is not adjustable. */
	#define TC_FIX_ADJUSTABLE(fixP) obj_fix_adjustable (fixP)
	#endif

	#define IGNORE_NONSTANDARD_ESCAPES

	#define LISTING_HEADER (shl ? "Hitachi Super-H GAS Little Endian" : "Hitachi Super-H GAS Big Endian")

	#define md_operand(x)

	extern const struct relax_type md_relax_table[];
	#define TC_GENERIC_RELAX_TABLE md_relax_table

	/* We record, for each section, whether we have most recently output a
	CODE reloc or a DATA reloc. */
	struct sh_segment_info_type
	{
	int in_code : 1;
	};
	#define TC_SEGMENT_INFO_TYPE struct sh_segment_info_type

	/* We call a routine to emit a reloc for a label, so that the linker
	can align loads and stores without crossing a label. */
	extern void sh_frob_label PARAMS ((void));
	#define tc_frob_label(sym) sh_frob_label ()

	/* We call a routine to flush pending output in order to output a DATA
	reloc when required. */
	extern void sh_flush_pending_output PARAMS ((void));
	#define md_flush_pending_output() sh_flush_pending_output ()

	#ifdef BFD_ASSEMBLER
	#define tc_frob_file_before_adjust sh_frob_file
	#else
	#define tc_frob_file sh_frob_file
	#endif
	extern void sh_frob_file PARAMS ((void));

	#ifdef OBJ_COFF
	/* COFF specific definitions. */

	#define DO_NOT_STRIP 0

	/* This macro translates between an internal fix and an coff reloc type */
	#define TC_COFF_FIX2RTYPE(fix) ((fix)->fx_r_type)

	#define BFD_ARCH TARGET_ARCH

	#define COFF_MAGIC (shl ? SH_ARCH_MAGIC_LITTLE : SH_ARCH_MAGIC_BIG)

	/* We need to write out relocs which have not been completed. */
	#define TC_COUNT_RELOC(fix) ((fix)->fx_addsy != NULL)

	#define TC_RELOC_MANGLE(seg, fix, int, paddr) \
	sh_coff_reloc_mangle ((seg), (fix), (int), (paddr))
	extern void sh_coff_reloc_mangle
	PARAMS ((struct segment_info_struct , struct fix ,
	struct internal_reloc *, unsigned int));

	#define tc_coff_symbol_emit_hook(a) ; /* not used */

	#define NEED_FX_R_TYPE 1

	#define TC_KEEP_FX_OFFSET 1

	#define TC_COFF_SIZEMACHDEP(frag) tc_coff_sizemachdep(frag)
	extern int tc_coff_sizemachdep PARAMS ((fragS *));

	#ifdef BFD_ASSEMBLER
	#define SEG_NAME(SEG) segment_name (SEG)
	#else
	#define SEG_NAME(SEG) obj_segment_name (SEG)
	#endif

	/* We align most sections to a 16 byte boundary. */
	#define SUB_SEGMENT_ALIGN(SEG) \
	(strncmp (SEG_NAME (SEG), ".stabstr", 8) == 0 \
	? 0 \
	: ((strncmp (SEG_NAME (SEG), ".stab", 5) == 0 \
	\|\| strcmp (SEG_NAME (SEG), ".ctors") == 0 \
	\|\| strcmp (SEG_NAME (SEG), ".dtors") == 0) \
	? 2 \
	: (sh_small ? 2 : 4)))

	#endif /* OBJ_COFF */

	#ifdef OBJ_ELF
	/* ELF specific definitions. */

	/* Whether or not the target is big endian */
	extern int target_big_endian;

	#ifdef TE_LINUX
	#define TARGET_FORMAT (shl ? "elf32-sh-linux" : "elf32-shbig-linux")
	#else
	#define TARGET_FORMAT (shl ? "elf32-shl" : "elf32-sh")
	#endif

	#define elf_tc_final_processing sh_elf_final_processing
	extern void sh_elf_final_processing PARAMS ((void));

	#define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */

	#define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"

	/* This is the relocation type for direct references to
	GLOBAL_OFFSET_TABLE. It comes up in complicated expressions such
	as _GLOBAL_OFFSET_TABLE_+[.-.L284], which cannot be expressed
	normally with the regular expressions. The fixup specified here
	when used at runtime implies that we should add the address of the
	GOT to the specified location, and as a result we have simplified
	the expression into something we can use. */
	#define TC_RELOC_GLOBAL_OFFSET_TABLE BFD_RELOC_SH_GOTPC

	/* This expression evaluates to false if the relocation is for a local object
	for which we still want to do the relocation at runtime. True if we
	are willing to perform this relocation while building the .o file.
	This is only used for pcrel relocations, so GOTOFF does not need to be
	checked here. I am not sure if some of the others are ever used with
	pcrel, but it is easier to be safe than sorry.

	We can't resolve references to the GOT or the PLT when creating the
	object file, since these tables are only created by the linker.
	Also, if the symbol is global, weak, common or not defined, the
	assembler can't compute the appropriate reloc, since its location
	can only be determined at link time. */

	#define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \
	((FIX)->fx_r_type != BFD_RELOC_32_PLT_PCREL \
	&& (FIX)->fx_r_type != BFD_RELOC_32_GOT_PCREL \
	&& (FIX)->fx_r_type != BFD_RELOC_SH_GOTPC \
	&& ((FIX)->fx_addsy == NULL \
	\|\| (! S_IS_EXTERNAL ((FIX)->fx_addsy) \
	&& ! S_IS_WEAK ((FIX)->fx_addsy) \
	&& S_IS_DEFINED ((FIX)->fx_addsy) \
	&& ! S_IS_COMMON ((FIX)->fx_addsy))))

	#endif /* OBJ_ELF */