X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gas%2Fconfig%2Ftc-ppc.h;h=f7c2da619cbc8311d67f7c2b9186f39e715e9639;hb=7f3dfb9cf74da197cfe71fb0490a90613269ca0f;hp=d12a8737e2a2ef2ea38033d4a8accf069eae90d0;hpb=af16e4115dcaffa8d48e4ff5b223f087ac2bdd55;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/config/tc-ppc.h b/gas/config/tc-ppc.h index d12a8737e2..f7c2da619c 100644 --- a/gas/config/tc-ppc.h +++ b/gas/config/tc-ppc.h @@ -1,5 +1,6 @@ /* tc-ppc.h -- Header file for tc-ppc.c. - Copyright (C) 1994, 1995, 1996 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. @@ -16,13 +17,16 @@ 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 -#ifndef BFD_ASSEMBLER - #error PowerPC support requires BFD_ASSEMBLER +struct fix; + +/* Set the endianness we are using. Default to big endian. */ +#ifndef TARGET_BYTES_BIG_ENDIAN +#define TARGET_BYTES_BIG_ENDIAN 1 #endif /* If OBJ_COFF is defined, and TE_PE is not defined, we are assembling @@ -37,31 +41,16 @@ /* 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 @@ -74,22 +63,8 @@ extern int target_big_endian; #define NO_STRING_ESCAPES #endif -/* When using COFF, we determine whether or not to output a symbol - based on sy_tc.output, not on the name. */ -#ifdef OBJ_XCOFF -#define LOCAL_LABEL(name) 0 -#endif #ifdef OBJ_ELF -/* When using ELF, local labels start with '.'. */ -#define LOCAL_LABEL(name) (name[0] == '.' \ - && (name[1] == 'L' || name[1] == '.')) -#define FAKE_LABEL_NAME ".L0\001" -#define DIFF_EXPR_OK /* .-foo gets turned into PC relative relocs */ -#endif - -/* Set the endianness we are using. Default to big endian. */ -#ifndef TARGET_BYTES_BIG_ENDIAN -#define TARGET_BYTES_BIG_ENDIAN 1 +#define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */ #endif #if TARGET_BYTES_BIG_ENDIAN @@ -101,8 +76,39 @@ extern int target_big_endian; /* 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")); #ifdef TE_PE @@ -110,7 +116,7 @@ extern int target_big_endian; #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 @@ -126,7 +132,7 @@ extern int ppc_pe_fix_adjustable PARAMS ((struct fix *)); struct ppc_tc_sy { /* We keep a few linked lists of symbols. */ - struct symbol *next; + symbolS *next; /* Non-zero if the symbol should be output. The RS/6000 assembler only outputs symbols that are external or are mentioned in a .globl or .lglobl statement. */ @@ -142,11 +148,11 @@ struct ppc_tc_sy int align; /* For a function symbol, a symbol whose value is the size. The field is NULL if there is no size. */ - struct symbol *size; + symbolS *size; /* For a csect symbol, the last symbol which has been defined in this csect, or NULL if none have been defined so far. For a .bs symbol, the referenced csect symbol. */ - struct symbol *within; + symbolS *within; }; #define TC_SYMFIELD_TYPE struct ppc_tc_sy @@ -163,89 +169,100 @@ extern char *ppc_canonicalize_symbol_name PARAMS ((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 ((struct symbol *)); +extern void ppc_symbol_new_hook PARAMS ((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 ((struct symbol *)); +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 *)); /* Finish up the symbol. */ #define tc_frob_symbol(sym, punt) punt = ppc_frob_symbol (sym) -extern int ppc_frob_symbol PARAMS ((struct symbol *)); +extern int ppc_frob_symbol PARAMS ((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. */ -#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 -/* The name of the global offset table generated by the compiler. Allow - this to be overridden if need be. */ -#ifndef GLOBAL_OFFSET_TABLE_NAME -#define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_" -#endif +extern const char ppc_symbol_chars[]; +#define tc_symbol_chars ppc_symbol_chars -/* Branch prediction relocations must force relocation */ -#define TC_FORCE_RELOCATION_SECTION(FIXP,SEC) \ -((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_addsy && !(FIXP)->fx_subsy && (FIXP)->fx_addsy->bsym \ - && (FIXP)->fx_addsy->bsym->section != 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 **)); -extern int ppc_section_word PARAMS ((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)); #define md_elf_section_letter(LETTER, PTR_MSG) ppc_section_letter (LETTER, PTR_MSG) -#define md_elf_section_type(PTR_STR) ppc_section_type (PTR_STR) -#define md_elf_section_word(PTR_STR) ppc_section_word (PTR_STR) +#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) -/* 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) ppc_fix_adjustable (FIX) +extern int ppc_fix_adjustable PARAMS ((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 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, mode, 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