X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gas%2Fconfig%2Ftc-ppc.h;h=f7c2da619cbc8311d67f7c2b9186f39e715e9639;hb=7f3dfb9cf74da197cfe71fb0490a90613269ca0f;hp=783a215d9ecf659b245a25184be6650f796431e7;hpb=2c1c4c62197bd77d2c801e6bd6fe1d210a7ec68a;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/config/tc-ppc.h b/gas/config/tc-ppc.h index 783a215d9e..f7c2da619c 100644 --- a/gas/config/tc-ppc.h +++ b/gas/config/tc-ppc.h @@ -1,6 +1,6 @@ /* tc-ppc.h -- Header file for tc-ppc.c. - Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000 - 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. @@ -17,24 +17,18 @@ 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 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. */ @@ -47,31 +41,16 @@ 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)); /* 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 @@ -97,8 +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 @@ -106,7 +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 @@ -166,13 +176,9 @@ extern void ppc_symbol_new_hook PARAMS ((symbolS *)); 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 *)); @@ -185,9 +191,6 @@ extern int ppc_frob_symbol PARAMS ((symbolS *)); #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) \ @@ -200,25 +203,12 @@ do { \ 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 **)); @@ -231,59 +221,48 @@ extern int ppc_section_flags PARAMS ((int, int, int)); #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_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