X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gas%2Fconfig%2Ftc-ppc.h;h=bfe61294da1d19bcc3c9d3abda5250845099cba1;hb=6914be53bd662eefd979d0c82d2e20e108c4ee66;hp=c2876bfa35b8e308627c26c2595f90a07d734981;hpb=f7e42eb4af140e0068476b586464eaed5569548d;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/config/tc-ppc.h b/gas/config/tc-ppc.h index c2876bfa35..bfe61294da 100644 --- a/gas/config/tc-ppc.h +++ b/gas/config/tc-ppc.h @@ -1,13 +1,12 @@ /* tc-ppc.h -- Header file for tc-ppc.c. - Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000 - Free Software Foundation, Inc. + Copyright (C) 1994-2020 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 +16,20 @@ 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 +43,15 @@ 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 (); +extern const char *ppc_target_format (void); /* Permit temporary numeric labels. */ #define LOCAL_LABELS_FB 1 @@ -66,7 +61,7 @@ extern char* ppc_target_format (); /* Strings do not use backslash escapes under COFF. */ #ifdef OBJ_COFF -#define NO_STRING_ESCAPES +#define TC_STRING_ESCAPES 0 #endif #ifdef OBJ_ELF @@ -82,8 +77,35 @@ extern char* ppc_target_format (); /* 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) \ + ppc_handle_align (FRAGP); + +extern unsigned int ppc_nop_select (void); +#define NOP_OPCODE ppc_nop_select () + +extern void ppc_handle_align (struct frag *); +extern void ppc_frag_check (struct frag *); + +#ifdef OBJ_ELF +#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0 +#endif + +#define md_frag_check(FRAGP) ppc_frag_check (FRAGP) + +/* 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 @@ -91,8 +113,8 @@ extern char* ppc_target_format (); #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 @@ -108,26 +130,32 @@ struct ppc_tc_sy { /* We keep a few linked lists of symbols. */ symbolS *next; + /* The real name, if the symbol was renamed. */ + char *real_name; /* 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. */ - int output; + unsigned char output; /* The symbol class. */ - int class; - /* The real name, if the symbol was renamed. */ - char *real_name; + short symbol_class; + /* For a csect or common symbol, the alignment to use. */ + unsigned char align; /* For a csect symbol, the subsegment we are using. This is zero for symbols that are not csects. */ subsegT subseg; - /* For a csect or common symbol, the alignment to use. */ - int align; - /* For a function symbol, a symbol whose value is the size. The - field is NULL if there is no 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. */ + this csect, or NULL if none have been defined so far. + For a .bs symbol, the referenced csect symbol. + For a label, the enclosing csect. */ symbolS *within; + union + { + /* For a function symbol, a symbol whose value is the size. The + field is NULL if there is no size. */ + symbolS *size; + /* For a dwarf symbol, the corresponding dwarf subsection. */ + struct dw_subsection *dw; + } u; }; #define TC_SYMFIELD_TYPE struct ppc_tc_sy @@ -140,39 +168,27 @@ 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 *)); - -/* 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_symbol_new_hook (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. */ @@ -180,95 +196,151 @@ extern int ppc_subseg_align PARAMS ((void)); 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)->u = symbol_get_tc (src)->u; \ symbol_get_tc (dest)->align = symbol_get_tc (src)->align; \ - symbol_get_tc (dest)->class = symbol_get_tc (src)->class; \ + symbol_get_tc (dest)->symbol_class = symbol_get_tc (src)->symbol_class; \ symbol_get_tc (dest)->within = symbol_get_tc (src)->within; \ } while (0) +extern void ppc_xcoff_end (void); +#define md_end ppc_xcoff_end + #endif /* OBJ_XCOFF */ +#define tc_new_dot_label(sym) ppc_new_dot_label (sym) +extern void ppc_new_dot_label (symbolS *); + +extern const char ppc_symbol_chars[]; +#define tc_symbol_chars ppc_symbol_chars + #ifdef OBJ_ELF -/* 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)) - -/* 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)); - -#define md_elf_section_letter(LETTER, PTR_MSG) ppc_section_letter (LETTER, PTR_MSG) +/* Support for SHT_ORDERED */ +extern int ppc_section_type (char *, size_t); +extern int ppc_section_flags (flagword, bfd_vma, int); + #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; +#define md_elf_section_letter ppc_elf_section_letter +extern bfd_vma ppc_elf_section_letter (int, const char **); + /* 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))) - -#define DWARF2_LINE_MIN_INSN_LENGTH 4 +#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_PARSE_CONS_EXPRESSION(EXP, NBYTES) \ + ppc_elf_parse_cons (EXP, NBYTES) +extern bfd_reloc_code_real_type ppc_elf_parse_cons (expressionS *, + unsigned int); +#define TC_CONS_FIX_CHECK(EXP, NBYTES, FIX) \ + ppc_elf_cons_fix_check (EXP, NBYTES, FIX) +extern void ppc_elf_cons_fix_check (expressionS *, unsigned int, struct fix *); + +#define tc_frob_file_before_adjust ppc_frob_file_before_adjust +extern void ppc_frob_file_before_adjust (void); + +#define tc_adjust_symtab() ppc_elf_adjust_symtab () +extern void ppc_elf_adjust_symtab (void); + +extern void ppc_elf_end (void); +#define md_end ppc_elf_end + #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 (struct fix *); +#endif + +#ifdef OBJ_ELF +/* Don't allow the generic code to convert fixups involving the + subtraction of a label in the current section to pc-relative if we + don't have the necessary pc-relative relocation. */ +#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) \ + (!((FIX)->fx_r_type == BFD_RELOC_64 \ + || (FIX)->fx_r_type == BFD_RELOC_32 \ + || (FIX)->fx_r_type == BFD_RELOC_16 \ + || (FIX)->fx_r_type == BFD_RELOC_LO16 \ + || (FIX)->fx_r_type == BFD_RELOC_HI16 \ + || (FIX)->fx_r_type == BFD_RELOC_HI16_S \ + || (FIX)->fx_r_type == BFD_RELOC_PPC64_ADDR16_HIGH \ + || (FIX)->fx_r_type == BFD_RELOC_PPC64_ADDR16_HIGHA \ + || (FIX)->fx_r_type == BFD_RELOC_PPC64_HIGHER \ + || (FIX)->fx_r_type == BFD_RELOC_PPC64_HIGHER_S \ + || (FIX)->fx_r_type == BFD_RELOC_PPC64_HIGHEST \ + || (FIX)->fx_r_type == BFD_RELOC_PPC64_HIGHEST_S \ + || (FIX)->fx_r_type == BFD_RELOC_PPC64_ADDR16_HIGHER34 \ + || (FIX)->fx_r_type == BFD_RELOC_PPC64_ADDR16_HIGHERA34 \ + || (FIX)->fx_r_type == BFD_RELOC_PPC64_ADDR16_HIGHEST34 \ + || (FIX)->fx_r_type == BFD_RELOC_PPC64_ADDR16_HIGHESTA34 \ + || (FIX)->fx_r_type == BFD_RELOC_PPC_16DX_HA \ + || (FIX)->fx_r_type == BFD_RELOC_PPC64_D34 \ + || (FIX)->fx_r_type == BFD_RELOC_PPC64_D28)) +#endif + +#define TC_VALIDATE_FIX_SUB(FIX, SEG) 0 + +/* Various frobbings of labels and their addresses. */ +#define md_start_line_hook() ppc_start_line_hook () +extern void ppc_start_line_hook (void); + +/* 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 (symbolS *); /* 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) + +#define md_parse_name(name, exp, mode, c) ppc_parse_name (name, exp) +extern int ppc_parse_name (const char *, struct expressionS *); -#define md_parse_name(name, exp) ppc_parse_name (name, exp) -extern int ppc_parse_name PARAMS ((const char *, struct expressionS *)); +#define md_optimize_expr(left, op, right) ppc_optimize_expr (left, op, right) +extern int ppc_optimize_expr (expressionS *, operatorT, expressionS *); #define md_operand(x) + +#define md_cleanup() ppc_cleanup () +extern void ppc_cleanup (void); + +#if (defined TE_AIX5 || defined TE_AIX \ + || defined TE_FreeBSD || defined TE_NetBSD || defined TE_LYNX) +/* ppc uses different register numbers between .eh_frame and .debug_frame. + This macro translates the .eh_frame register numbers to .debug_frame + register numbers. */ +#define md_reg_eh_frame_to_debug_frame(regno) \ + ((regno) == 70 ? 64 /* cr2 */ \ + : (regno) == 65 ? 108 /* lr */ \ + : (regno) == 66 ? 109 /* ctr */ \ + : (regno) >= 68 && (regno) <= 75 ? (regno) + 86 - 68 /* crN */ \ + : (regno) == 76 ? 101 /* xer */ \ + : (regno) >= 77 && (regno) <= 108 ? (regno) + 1124 - 77 /* vrN */ \ + : (regno) == 109 ? 356 /* vrsave */ \ + : (regno) == 110 ? 67 /* vscr */ \ + : (regno) == 111 ? 99 /* spe_acc */ \ + : (regno) == 112 ? 612 /* spefscr */ \ + : (regno)) +#endif + +#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; + +extern int ppc_dwarf2_line_min_insn_length; + +#define DWARF2_LINE_MIN_INSN_LENGTH ppc_dwarf2_line_min_insn_length +#define DWARF2_DEFAULT_RETURN_COLUMN 0x41 +#define DWARF2_CIE_DATA_ALIGNMENT ppc_cie_data_alignment +#define EH_FRAME_ALIGNMENT 2