/* tc-ppc.h -- Header file for tc-ppc.c.
- Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
- Free Software Foundation, Inc.
+ Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+ 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Cygnus Support.
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)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
GAS is distributed in the hope that it will be useful,
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. */
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
#define TC_PPC
-#ifdef ANSI_PROTOTYPES
+#include "opcode/ppc.h"
+
struct fix;
-#endif
/* Set the endianness we are using. Default to big endian. */
#ifndef TARGET_BYTES_BIG_ENDIAN
#define TARGET_BYTES_BIG_ENDIAN 1
#endif
-#ifndef BFD_ASSEMBLER
- #error PowerPC support requires BFD_ASSEMBLER
-#endif
-
/* If OBJ_COFF is defined, and TE_PE is not defined, we are assembling
XCOFF for AIX or PowerMac. If TE_PE is defined, we are assembling
COFF for Windows NT. */
/* 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));
+extern enum bfd_architecture ppc_arch (void);
+extern unsigned long ppc_mach (void);
/* Whether or not the target is big endian */
extern int target_big_endian;
/* The target BFD format. */
#define TARGET_FORMAT (ppc_target_format ())
-extern char *ppc_target_format PARAMS ((void));
+extern char *ppc_target_format (void);
/* Permit temporary numeric labels. */
#define LOCAL_LABELS_FB 1
#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) \
- { \
- unsigned 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; \
- } \
- } \
- }
+ if ((FRAGP)->fr_type == rs_align_code) \
+ ppc_handle_align (FRAGP);
+extern void ppc_handle_align (struct frag *);
+
+#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0
+
+#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"));
+
+/* Arrange to store the value of ppc_cpu at the site of a fixup
+ for later use in md_apply_fix. */
+struct _ppc_fix_extra
+{
+ ppc_cpu_t ppc_cpu;
+};
+
+extern ppc_cpu_t ppc_cpu;
+
+#define TC_FIX_TYPE struct _ppc_fix_extra
+#define TC_INIT_FIX_DATA(FIXP) \
+ do { (FIXP)->tc_fix_data.ppc_cpu = ppc_cpu; } while (0)
\f
#ifdef TE_PE
#define LEX_QM 1
/* Don't adjust TOC relocs. */
-#define tc_fix_adjustable(fixp) ppc_pe_fix_adjustable (fixp)
-extern int ppc_pe_fix_adjustable PARAMS ((struct fix *));
+#define tc_fix_adjustable(FIX) ppc_pe_fix_adjustable (FIX)
+extern int ppc_pe_fix_adjustable (struct fix *);
#endif
/* Canonicalize the symbol name. */
#define tc_canonicalize_symbol_name(name) ppc_canonicalize_symbol_name (name)
-extern char *ppc_canonicalize_symbol_name PARAMS ((char *));
+extern char *ppc_canonicalize_symbol_name (char *);
/* Get the symbol class from the name. */
#define tc_symbol_new_hook(sym) ppc_symbol_new_hook (sym)
-extern void ppc_symbol_new_hook PARAMS ((symbolS *));
+extern void ppc_symbol_new_hook (symbolS *);
/* Set the symbol class of a label based on the csect. */
#define tc_frob_label(sym) ppc_frob_label (sym)
-extern void ppc_frob_label PARAMS ((symbolS *));
+extern void ppc_frob_label (symbolS *);
/* TOC relocs requires special handling. */
-#define tc_fix_adjustable(fixp) ppc_fix_adjustable (fixp)
-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 *));
+#define tc_fix_adjustable(FIX) ppc_fix_adjustable (FIX)
+extern int ppc_fix_adjustable (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 *));
+extern void ppc_frob_section (asection *);
/* Finish up the symbol. */
#define tc_frob_symbol(sym, punt) punt = ppc_frob_symbol (sym)
-extern int ppc_frob_symbol PARAMS ((symbolS *));
+extern int ppc_frob_symbol (symbolS *);
/* Finish up the entire symtab. */
#define tc_adjust_symtab() ppc_adjust_symtab ()
-extern void ppc_adjust_symtab PARAMS ((void));
-
-/* Niclas Andersson <nican@ida.liu.se> says this is needed. */
-extern int ppc_subseg_align PARAMS ((void));
-#define SUB_SEGMENT_ALIGN(SEG) ppc_subseg_align()
+extern void ppc_adjust_symtab (void);
/* We also need to copy, in particular, the class of the symbol,
over what obj-coff would otherwise have copied. */
#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 \
- || (BFD_DEFAULT_TARGET_SIZE == 64 \
- && (FIXP)->fx_r_type == BFD_RELOC_PPC64_TOC) \
- || (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 **));
-extern int ppc_section_type PARAMS ((char *, size_t));
-extern int ppc_section_word PARAMS ((char *, size_t));
-extern int ppc_section_flags PARAMS ((int, int, int));
+extern bfd_vma ppc_section_letter (int, char **);
+extern int ppc_section_type (char *, size_t);
+extern bfd_vma ppc_section_word (char *, size_t);
+extern int ppc_section_flags (flagword, bfd_vma, int);
#define md_elf_section_letter(LETTER, PTR_MSG) ppc_section_letter (LETTER, PTR_MSG)
#define md_elf_section_type(STR, LEN) ppc_section_type (STR, LEN)
#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)
-#if BFD_DEFAULT_TARGET_SIZE == 64
-/* Extra sections for 64-bit ELF PPC. */
-#define ELF_TC_SPECIAL_SECTIONS \
- { ".toc", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE}, \
- { ".tocbss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE},
-#else
-/* 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 },
-#endif
-
#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(fixp) ppc_fix_adjustable (fixp)
-extern int ppc_fix_adjustable PARAMS ((struct fix *));
-
-/* 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)))
-
-#if BFD_DEFAULT_TARGET_SIZE == 64
-/* Finish up the symbol. */
-#define tc_frob_symbol(sym, punt) punt = ppc_elf_frob_symbol (sym)
-extern int ppc_elf_frob_symbol PARAMS ((symbolS *));
-#endif
+#define tc_fix_adjustable(FIX) ppc_fix_adjustable (FIX)
+extern int ppc_fix_adjustable (struct fix *);
+
+/* Values passed to md_apply_fix 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 (void);
-#define DWARF2_LINE_MIN_INSN_LENGTH 4
#endif /* OBJ_ELF */
+#if defined (OBJ_ELF) || defined (OBJ_XCOFF)
+#define TC_FORCE_RELOCATION(FIX) ppc_force_relocation (FIX)
+extern int ppc_force_relocation (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)
-extern long md_pcrel_from_section PARAMS ((struct fix *, segT));
+#define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section(FIX, SEC)
+extern long md_pcrel_from_section (struct fix *, segT);
-#define md_parse_name(name, exp, c) ppc_parse_name (name, exp)
-extern int ppc_parse_name PARAMS ((const char *, struct expressionS *));
+#define md_parse_name(name, exp, mode, c) ppc_parse_name (name, exp)
+extern int ppc_parse_name (const char *, struct expressionS *);
#define md_operand(x)
+
+#define md_cleanup() ppc_cleanup ()
+extern void ppc_cleanup (void);
+
+#define TARGET_USE_CFIPOP 1
+
+#define tc_cfi_frame_initial_instructions ppc_cfi_frame_initial_instructions
+extern void ppc_cfi_frame_initial_instructions (void);
+
+#define tc_regname_to_dw2regnum tc_ppc_regname_to_dw2regnum
+extern int tc_ppc_regname_to_dw2regnum (char *);
+
+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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