X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gas%2Fconfig%2Ftc-ppc.h;h=f1c02fd548250b0c01d46d17ba0ff2cb5fb8fcb9;hb=01e1a5bc1257af9e193d00fd4dce10fa3f1f3d75;hp=7e513e78cdb4850535cc7a4c58a448ba63e9e132;hpb=5d6255fea654e42fc10353d52f60cf56970744d5;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/config/tc-ppc.h b/gas/config/tc-ppc.h index 7e513e78cd..f1c02fd548 100644 --- a/gas/config/tc-ppc.h +++ b/gas/config/tc-ppc.h @@ -1,13 +1,13 @@ /* 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, @@ -17,24 +17,20 @@ 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. */ @@ -48,15 +44,15 @@ struct fix; /* 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 @@ -84,32 +80,31 @@ extern char *ppc_target_format PARAMS ((void)); #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) #ifdef TE_PE @@ -117,8 +112,8 @@ extern char *ppc_target_format PARAMS ((void)); #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 @@ -166,39 +161,31 @@ struct ppc_tc_sy /* 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 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. */ @@ -214,86 +201,64 @@ do { \ #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