/* This file is tc-sh.h
- Copyright (C) 1993, 94, 95, 96, 97, 98, 99, 2000 Free Software Foundation, Inc.
+ Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+ 2003 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
#define TC_SH
-#define TARGET_BYTES_BIG_ENDIAN 0
-
#define TARGET_ARCH bfd_arch_sh
#if ANSI_PROTOTYPES
+/* The type fixS is defined (to struct fix) in write.h, but write.h uses
+ definitions from this file. To avoid problems with including write.h
+ after the "right" definitions, don't; just forward-declare struct fix
+ here. */
+struct fix;
struct segment_info_struct;
struct internal_reloc;
#endif
-/* Whether in little endian mode. */
-extern int shl;
-
/* Whether -relax was used. */
extern int sh_relax;
/* 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));
+extern void sh_cons_align (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 *));
+extern void sh_handle_align (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 ();
+extern int sh_force_relocation (struct fix *);
-#ifdef OBJ_ELF
-#define obj_fix_adjustable(fixP) sh_fix_adjustable(fixP)
-struct fix;
-extern boolean sh_fix_adjustable PARAMS ((struct fix *));
+/* This macro decides whether a particular reloc is an entry in a
+ switch table. It is used when relaxing, because the linker needs
+ to know about all such entries so that it can adjust them if
+ necessary. */
-/* 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)
+#ifdef BFD_ASSEMBLER
+#define SWITCH_TABLE_CONS(FIX) (0)
+#else
+#define SWITCH_TABLE_CONS(FIX) \
+ ((FIX)->fx_r_type == 0 \
+ && ((FIX)->fx_size == 2 \
+ || (FIX)->fx_size == 1 \
+ || (FIX)->fx_size == 4))
#endif
+#define SWITCH_TABLE(FIX) \
+ ((FIX)->fx_addsy != NULL \
+ && (FIX)->fx_subsy != NULL \
+ && S_GET_SEGMENT ((FIX)->fx_addsy) == text_section \
+ && S_GET_SEGMENT ((FIX)->fx_subsy) == text_section \
+ && ((FIX)->fx_r_type == BFD_RELOC_32 \
+ || (FIX)->fx_r_type == BFD_RELOC_16 \
+ || (FIX)->fx_r_type == BFD_RELOC_8 \
+ || SWITCH_TABLE_CONS (FIX)))
+
+#define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEC) \
+ (! SEG_NORMAL (SEC) \
+ || TC_FORCE_RELOCATION (FIX) \
+ || (sh_relax && SWITCH_TABLE (FIX)))
+
+/* Don't complain when we leave fx_subsy around. */
+#define TC_VALIDATE_FIX_SUB(FIX) \
+ (sh_relax && SWITCH_TABLE (FIX))
+
+#define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
+extern long md_pcrel_from_section (struct fix *, segT);
+
#define IGNORE_NONSTANDARD_ESCAPES
-#define LISTING_HEADER (shl ? "Hitachi Super-H GAS Little Endian" : "Hitachi Super-H GAS Big Endian")
+#define LISTING_HEADER \
+ (!target_big_endian \
+ ? "Renesas / SuperH SH GAS Little Endian" \
+ : "Renesas / SuperH SH GAS Big Endian")
#define md_operand(x)
extern const struct relax_type md_relax_table[];
#define TC_GENERIC_RELAX_TABLE md_relax_table
-/* We use a special alignment function to insert the correct nop
- pattern. */
-extern int sh_do_align PARAMS ((int, const char *, int, int));
-#define md_do_align(n,fill,len,max,l) if (sh_do_align (n,fill,len,max)) goto l
-
/* We record, for each section, whether we have most recently output a
CODE reloc or a DATA reloc. */
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));
+extern void sh_frob_label (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));
+extern void sh_flush_pending_output (void);
#define md_flush_pending_output() sh_flush_pending_output ()
#ifdef BFD_ASSEMBLER
#else
#define tc_frob_file sh_frob_file
#endif
-extern void sh_frob_file PARAMS ((void));
+extern void sh_frob_file (void);
+
#ifdef OBJ_COFF
/* COFF specific definitions. */
#define DO_NOT_STRIP 0
-/* This macro translates between an internal fix and an coff reloc type */
+/* This macro translates between an internal fix and a 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)
+#define COFF_MAGIC (!target_big_endian ? 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));
+ (struct segment_info_struct *, struct fix *,
+ struct internal_reloc *, unsigned int);
#define tc_coff_symbol_emit_hook(a) ; /* not used */
#define TC_KEEP_FX_OFFSET 1
#define TC_COFF_SIZEMACHDEP(frag) tc_coff_sizemachdep(frag)
-extern int tc_coff_sizemachdep PARAMS ((fragS *));
+extern int tc_coff_sizemachdep (fragS *);
#ifdef BFD_ASSEMBLER
#define SEG_NAME(SEG) segment_name (SEG)
#endif
/* We align most sections to a 16 byte boundary. */
-#define SUB_SEGMENT_ALIGN(SEG) \
+#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) \
(strncmp (SEG_NAME (SEG), ".stabstr", 8) == 0 \
? 0 \
: ((strncmp (SEG_NAME (SEG), ".stab", 5) == 0 \
/* 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")
+#define TARGET_FORMAT (!target_big_endian ? "elf32-sh-linux" : "elf32-shbig-linux")
+#elif defined(TE_NetBSD)
+#define TARGET_FORMAT (!target_big_endian ? "elf32-shl-nbsd" : "elf32-sh-nbsd")
+#elif defined TARGET_SYMBIAN
+#define TARGET_FORMAT (!target_big_endian ? "elf32-shl-symbian" : "elf32-sh-symbian")
#else
-#define TARGET_FORMAT (shl ? "elf32-shl" : "elf32-sh")
+#define TARGET_FORMAT (!target_big_endian ? "elf32-shl" : "elf32-sh")
#endif
#define elf_tc_final_processing sh_elf_final_processing
-extern void sh_elf_final_processing PARAMS ((void));
+extern void sh_elf_final_processing (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
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
+#define tc_fix_adjustable(FIX) sh_fix_adjustable(FIX)
+extern bfd_boolean sh_fix_adjustable (struct fix *);
+
+/* Values passed to md_apply_fix3 don't include symbol values. */
+#define MD_APPLY_SYM_VALUE(FIX) 0
+
+/* This expression evaluates to true if the relocation is for a local object
+ for which we still want to do the relocation at runtime. False 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.
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))))
+#define TC_FORCE_RELOCATION_LOCAL(FIX) \
+ (!(FIX)->fx_pcrel \
+ || (FIX)->fx_plt \
+ || (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 \
+ || TC_FORCE_RELOCATION (FIX))
-#endif /* OBJ_ELF */
+#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX) (sh_relax && SWITCH_TABLE (FIX))
+
+/* This keeps the subtracted symbol around, for use by PLT_PCREL
+ relocs. */
+#define TC_FORCE_RELOCATION_SUB_ABS(FIX) \
+ ((FIX)->fx_r_type == BFD_RELOC_32_PLT_PCREL)
+
+/* Don't complain when we leave fx_subsy around. */
+#undef TC_VALIDATE_FIX_SUB
+#define TC_VALIDATE_FIX_SUB(FIX) \
+ ((FIX)->fx_r_type == BFD_RELOC_32_PLT_PCREL \
+ || (sh_relax && SWITCH_TABLE (FIX)))
+
+#define md_parse_name(name, exprP, nextcharP) \
+ sh_parse_name ((name), (exprP), (nextcharP))
+int sh_parse_name (char const *name, expressionS *exprP, char *nextchar);
-#define md_end() sh_finalize ()
-void sh_finalize PARAMS ((void));
+#define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP) \
+ sh_cons_fix_new ((FRAG), (OFF), (LEN), (EXP))
+void sh_cons_fix_new (fragS *, int, int, expressionS *);
-/* end of tc-sh.h */
+/* This is used to construct expressions out of @GOTOFF, @PLT and @GOT
+ symbols. The relocation type is stored in X_md. */
+#define O_PIC_reloc O_md1
+
+#define TARGET_USE_CFIPOP 1
+
+#define tc_cfi_frame_initial_instructions sh_cfi_frame_initial_instructions
+extern void sh_cfi_frame_initial_instructions (void);
+
+#define tc_regname_to_dw2regnum sh_regname_to_dw2regnum
+extern int sh_regname_to_dw2regnum (const char *regname);
+
+/* All SH instructions are multiples of 16 bits. */
+#define DWARF2_LINE_MIN_INSN_LENGTH 2
+#define DWARF2_DEFAULT_RETURN_COLUMN 17
+#define DWARF2_CIE_DATA_ALIGNMENT -4
+
+#endif /* OBJ_ELF */
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