/* This file is tc-sh.h
- Copyright (C) 1993, 94, 95, 96, 97, 1998 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));
#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 ();
-#define obj_fix_adjustable(fixP) sh_fix_adjustable(fixP)
+extern int sh_force_relocation 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. */
+
+#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 PARAMS ((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
#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 */
+/* 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_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 (obj_segment_name (SEG), ".stabstr", 8) == 0 \
- ? 0 \
- : ((strncmp (obj_segment_name (SEG), ".stab", 5) == 0 \
- || strcmp (obj_segment_name (SEG), ".ctors") == 0 \
- || strcmp (obj_segment_name (SEG), ".dtors") == 0) \
- ? 2 \
+#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) \
+ (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 */
/* Whether or not the target is big endian */
extern int target_big_endian;
+#ifdef TE_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")
+#else
+#define TARGET_FORMAT (!target_big_endian ? "elf32-shl" : "elf32-sh")
+#endif
-#define TARGET_FORMAT (shl ? "elf32-shl" : "elf32-sh")
+#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
+
+#define tc_fix_adjustable(FIX) sh_fix_adjustable(FIX)
+extern bfd_boolean sh_fix_adjustable PARAMS ((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.
+
+ 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_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))
+
+#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 PARAMS ((char const *name,
+ expressionS *exprP,
+ char *nextchar));
+
+#define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP) \
+ sh_cons_fix_new ((FRAG), (OFF), (LEN), (EXP))
+void sh_cons_fix_new PARAMS ((fragS *, int, int, expressionS *));
+
+/* 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
#endif /* OBJ_ELF */
-
-/* end of tc-sh.h */
projects / deliverable / binutils-gdb.git / blobdiff