/* tc-ppc.h -- Header file for tc-ppc.c.
- Copyright (C) 1994, 95, 96, 97, 98, 1999 Free Software Foundation, Inc.
+ Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+ 2004, 2005 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Cygnus Support.
This file is part of GAS, the GNU Assembler.
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. */
+ 02111-1307, USA. */
#define TC_PPC
/* The target BFD architecture. */
#define TARGET_ARCH (ppc_arch ())
+#define TARGET_MACH (ppc_mach ())
extern enum bfd_architecture ppc_arch PARAMS ((void));
+extern unsigned long ppc_mach PARAMS ((void));
/* Whether or not the target is big endian */
extern int target_big_endian;
/* The target BFD format. */
-#ifdef OBJ_COFF
-#ifdef TE_PE
-#define TARGET_FORMAT (target_big_endian ? "pe-powerpc" : "pe-powerpcle")
-#else
-#define TARGET_FORMAT "aixcoff-rs6000"
-#endif
-#endif
-
-/* PowerMac has a BFD slightly different from AIX's. */
-#ifdef TE_POWERMAC
-#ifdef TARGET_FORMAT
-#undef TARGET_FORMAT
-#endif
-#define TARGET_FORMAT "xcoff-powermac"
-#endif
-
-#ifdef OBJ_ELF
-#define TARGET_FORMAT (target_big_endian ? "elf32-powerpc" : "elf32-powerpcle")
-#endif
+#define TARGET_FORMAT (ppc_target_format ())
+extern char *ppc_target_format PARAMS ((void));
/* Permit temporary numeric labels. */
#define LOCAL_LABELS_FB 1
/* We don't need to handle .word strangely. */
#define WORKING_DOT_WORD
-/* We set the fx_done field appropriately in md_apply_fix. */
-#define TC_HANDLES_FX_DONE
+#define MAX_MEM_FOR_RS_ALIGN_CODE 4
+#define HANDLE_ALIGN(FRAGP) \
+ if ((FRAGP)->fr_type == rs_align_code) \
+ { \
+ valueT count = ((FRAGP)->fr_next->fr_address \
+ - ((FRAGP)->fr_address + (FRAGP)->fr_fix)); \
+ if (count != 0 && (count & 3) == 0) \
+ { \
+ char *dest = (FRAGP)->fr_literal + (FRAGP)->fr_fix; \
+ \
+ (FRAGP)->fr_var = 4; \
+ if (target_big_endian) \
+ { \
+ *dest++ = 0x60; \
+ *dest++ = 0; \
+ *dest++ = 0; \
+ *dest++ = 0; \
+ } \
+ else \
+ { \
+ *dest++ = 0; \
+ *dest++ = 0; \
+ *dest++ = 0; \
+ *dest++ = 0x60; \
+ } \
+ } \
+ }
+
+#define md_frag_check(FRAGP) \
+ if ((FRAGP)->has_code \
+ && (((FRAGP)->fr_address + (FRAGP)->insn_addr) & 3) != 0) \
+ as_bad_where ((FRAGP)->fr_file, (FRAGP)->fr_line, \
+ _("instruction address is not a multiple of 4"));
\f
#ifdef TE_PE
#define LEX_QM 1
/* Don't adjust TOC relocs. */
-#define tc_fix_adjustable(fixp) ppc_pe_fix_adjustable (fixp)
+#define tc_fix_adjustable(FIX) ppc_pe_fix_adjustable (FIX)
extern int ppc_pe_fix_adjustable PARAMS ((struct fix *));
#endif
extern void ppc_frob_label PARAMS ((symbolS *));
/* TOC relocs requires special handling. */
-#define tc_fix_adjustable(fixp) ppc_fix_adjustable (fixp)
+#define tc_fix_adjustable(FIX) ppc_fix_adjustable (FIX)
extern int ppc_fix_adjustable PARAMS ((struct fix *));
-/* A relocation from one csect to another must be kept. */
-#define TC_FORCE_RELOCATION(FIXP) ppc_force_relocation (FIXP)
-extern int ppc_force_relocation PARAMS ((struct fix *));
-
/* We need to set the section VMA. */
#define tc_frob_section(sec) ppc_frob_section (sec)
extern void ppc_frob_section PARAMS ((asection *));
#define tc_adjust_symtab() ppc_adjust_symtab ()
extern void ppc_adjust_symtab PARAMS ((void));
-/* Niclas Andersson <nican@ida.liu.se> says this is needed. */
-#define SUB_SEGMENT_ALIGN(SEG) 2
+/* We also need to copy, in particular, the class of the symbol,
+ over what obj-coff would otherwise have copied. */
+#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest,src) \
+do { \
+ if (SF_GET_GET_SEGMENT (dest)) \
+ S_SET_SEGMENT (dest, S_GET_SEGMENT (src)); \
+ symbol_get_tc (dest)->size = symbol_get_tc (src)->size; \
+ symbol_get_tc (dest)->align = symbol_get_tc (src)->align; \
+ symbol_get_tc (dest)->class = symbol_get_tc (src)->class; \
+ symbol_get_tc (dest)->within = symbol_get_tc (src)->within; \
+} while (0)
#endif /* OBJ_XCOFF */
-#ifdef OBJ_ELF
+extern const char ppc_symbol_chars[];
+#define tc_symbol_chars ppc_symbol_chars
-/* Branch prediction relocations must force relocation, as must
- the vtable description relocs. */
-#define TC_FORCE_RELOCATION(FIXP) \
-((FIXP)->fx_r_type == BFD_RELOC_PPC_B16_BRTAKEN \
- || (FIXP)->fx_r_type == BFD_RELOC_PPC_B16_BRNTAKEN \
- || (FIXP)->fx_r_type == BFD_RELOC_PPC_BA16_BRTAKEN \
- || (FIXP)->fx_r_type == BFD_RELOC_PPC_BA16_BRNTAKEN \
- || (FIXP)->fx_r_type == BFD_RELOC_VTABLE_INHERIT \
- || (FIXP)->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
-
-#define TC_FORCE_RELOCATION_SECTION(FIXP,SEC) \
-(TC_FORCE_RELOCATION (FIXP) \
- || ((FIXP)->fx_addsy && !(FIXP)->fx_subsy \
- && S_GET_SEGMENT ((FIXP)->fx_addsy) != SEC))
+#ifdef OBJ_ELF
/* Support for SHF_EXCLUDE and SHT_ORDERED */
extern int ppc_section_letter PARAMS ((int, char **));
#define md_elf_section_word(STR, LEN) ppc_section_word (STR, LEN)
#define md_elf_section_flags(FLAGS, ATTR, TYPE) ppc_section_flags (FLAGS, ATTR, TYPE)
-/* Add extra PPC sections -- Note, for now, make .sbss2 and .PPC.EMB.sbss0 a
- normal section, and not a bss section so that the linker doesn't crater
- when trying to make more than 2 sections. */
-#define ELF_TC_SPECIAL_SECTIONS \
- { ".tags", SHT_ORDERED, SHF_ALLOC }, \
- { ".sdata", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, \
- { ".sbss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, \
- { ".sdata2", SHT_PROGBITS, SHF_ALLOC }, \
- { ".sbss2", SHT_PROGBITS, SHF_ALLOC }, \
- { ".PPC.EMB.sdata0", SHT_PROGBITS, SHF_ALLOC }, \
- { ".PPC.EMB.sbss0", SHT_PROGBITS, SHF_ALLOC },
-
#define tc_comment_chars ppc_comment_chars
extern const char *ppc_comment_chars;
-/* Keep relocations relative to the GOT, or non-PC relative. */
-#define tc_fix_adjustable(FIX) \
- ((FIX)->fx_r_type != BFD_RELOC_16_GOTOFF \
- && (FIX)->fx_r_type != BFD_RELOC_LO16_GOTOFF \
- && (FIX)->fx_r_type != BFD_RELOC_HI16_GOTOFF \
- && (FIX)->fx_r_type != BFD_RELOC_HI16_S_GOTOFF \
- && (FIX)->fx_r_type != BFD_RELOC_GPREL16 \
- && (FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \
- && (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY \
- && ! S_IS_EXTERNAL ((FIX)->fx_addsy) \
- && ! S_IS_WEAK ((FIX)->fx_addsy) \
- && ((FIX)->fx_pcrel \
- || ((FIX)->fx_subsy != NULL \
- && (S_GET_SEGMENT ((FIX)->fx_subsy) \
- == S_GET_SEGMENT ((FIX)->fx_addsy))) \
- || S_IS_LOCAL ((FIX)->fx_addsy)))
-
-/* We must never ever try to resolve references to externally visible
- symbols in the assembler, because the .o file might go into a shared
- library, and some other shared library might override that symbol. */
-#define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \
- ((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)))
+/* Keep relocations relative to the GOT, or non-PC relative. */
+#define tc_fix_adjustable(FIX) ppc_fix_adjustable (FIX)
+extern int ppc_fix_adjustable PARAMS ((struct fix *));
+
+/* Values passed to md_apply_fix3 don't include symbol values. */
+#define MD_APPLY_SYM_VALUE(FIX) 0
+
+#define tc_frob_file_before_adjust ppc_frob_file_before_adjust
+extern void ppc_frob_file_before_adjust PARAMS ((void));
#endif /* OBJ_ELF */
-/* call md_apply_fix3 with segment instead of md_apply_fix */
-#define MD_APPLY_FIX3
+#if defined (OBJ_ELF) || defined (OBJ_XCOFF)
+#define TC_FORCE_RELOCATION(FIX) ppc_force_relocation (FIX)
+extern int ppc_force_relocation PARAMS ((struct fix *));
+#endif
/* call md_pcrel_from_section, not md_pcrel_from */
-#define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section(FIXP, SEC)
+#define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section(FIX, SEC)
extern long md_pcrel_from_section PARAMS ((struct fix *, segT));
-#define md_parse_name(name, exp) ppc_parse_name (name, exp)
+#define md_parse_name(name, exp, c) ppc_parse_name (name, exp)
extern int ppc_parse_name PARAMS ((const char *, struct expressionS *));
#define md_operand(x)
+#define md_cleanup() ppc_cleanup ()
+ extern void ppc_cleanup PARAMS ((void));
+
+#define TARGET_USE_CFIPOP 1
+
+#define tc_cfi_frame_initial_instructions ppc_cfi_frame_initial_instructions
+extern void ppc_cfi_frame_initial_instructions PARAMS ((void));
+
+#define tc_regname_to_dw2regnum tc_ppc_regname_to_dw2regnum
+extern int tc_ppc_regname_to_dw2regnum PARAMS ((const char *regname));
+
+extern int ppc_cie_data_alignment;
+
+#define DWARF2_LINE_MIN_INSN_LENGTH 4
+#define DWARF2_DEFAULT_RETURN_COLUMN 0x41
+#define DWARF2_CIE_DATA_ALIGNMENT ppc_cie_data_alignment
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