X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gas%2Fconfig%2Ftc-ppc.h;h=bfe61294da1d19bcc3c9d3abda5250845099cba1;hb=13aa5ceb01cc94a0e617f397c0c5434fc22bb1e5;hp=c31a98b7fb34b3716d8d6911c2b1eced74023fa2;hpb=65c91be516a93b940ffdc04fd732775fcbe46f8b;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/config/tc-ppc.h b/gas/config/tc-ppc.h index c31a98b7fb..bfe61294da 100644 --- a/gas/config/tc-ppc.h +++ b/gas/config/tc-ppc.h @@ -1,12 +1,12 @@ /* tc-ppc.h -- Header file for tc-ppc.c. - Copyright (C) 1994 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, @@ -15,29 +15,43 @@ GNU General Public License for more details. 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. */ + along with GAS; see the file COPYING. If not, write to the Free + Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA + 02110-1301, USA. */ #define TC_PPC -#ifndef BFD_ASSEMBLER - #error PowerPC support requires BFD_ASSEMBLER +#include "opcode/ppc.h" + +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 + XCOFF for AIX or PowerMac. If TE_PE is defined, we are assembling + COFF for Windows NT. */ + +#ifdef OBJ_COFF +#ifndef TE_PE +#define OBJ_XCOFF +#endif #endif /* The target BFD architecture. */ #define TARGET_ARCH (ppc_arch ()) -extern enum bfd_architecture ppc_arch PARAMS ((void)); +#define TARGET_MACH (ppc_mach ()) +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. */ -#ifdef OBJ_COFF -#define TARGET_FORMAT "aixcoff-rs6000" -#endif -#ifdef OBJ_ELF -#define TARGET_FORMAT (target_big_endian) ? "elf32-powerpc" : "elf32-powerpcle" -#endif +#define TARGET_FORMAT (ppc_target_format ()) +extern const char *ppc_target_format (void); /* Permit temporary numeric labels. */ #define LOCAL_LABELS_FB 1 @@ -47,30 +61,14 @@ extern int target_big_endian; /* Strings do not use backslash escapes under COFF. */ #ifdef OBJ_COFF -#define NO_STRING_ESCAPES +#define TC_STRING_ESCAPES 0 #endif -/* When using COFF, we determine whether or not to output a symbol - based on sy_tc.output, not on the name. */ -#ifdef OBJ_COFF -#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 */ +#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 -#ifndef TARGET_BYTES_LITTLE_ENDIAN -#define TARGET_BYTES_BIG_ENDIAN 1 -#endif -#endif - -#ifdef TARGET_BYTES_BIG_ENDIAN +#if TARGET_BYTES_BIG_ENDIAN #define PPC_BIG_ENDIAN 1 #else #define PPC_BIG_ENDIAN 0 @@ -79,10 +77,48 @@ 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) \ + 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 OBJ_COFF +#ifdef TE_PE + +/* Question marks are permitted in symbol names. */ +#define LEX_QM 1 + +/* Don't adjust TOC relocs. */ +#define tc_fix_adjustable(FIX) ppc_pe_fix_adjustable (FIX) +extern int ppc_pe_fix_adjustable (struct fix *); + +#endif + +#ifdef OBJ_XCOFF /* Declarations needed when generating XCOFF code. XCOFF is an extension of COFF, used only on the RS/6000. Rather than create an @@ -93,27 +129,33 @@ extern int target_big_endian; struct ppc_tc_sy { /* We keep a few linked lists of symbols. */ - struct symbol *next; + 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. */ - struct symbol *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; + 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 @@ -126,54 +168,179 @@ 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 ((struct symbol *)); - -/* 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_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 *)); +#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 ((struct symbol *)); +extern int ppc_frob_symbol (symbolS *); + +/* Finish up the entire symtab. */ +#define tc_adjust_symtab() ppc_adjust_symtab () +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. */ +#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)->u = symbol_get_tc (src)->u; \ + symbol_get_tc (dest)->align = symbol_get_tc (src)->align; \ + 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 -/* Niclas Andersson says this is needed. */ -#define SUB_SEGMENT_ALIGN(SEG) 2 +#endif /* OBJ_XCOFF */ -/* Finish up the file. */ -#define tc_frob_file() ppc_frob_file () -extern void ppc_frob_file PARAMS ((void)); +#define tc_new_dot_label(sym) ppc_new_dot_label (sym) +extern void ppc_new_dot_label (symbolS *); -#endif /* OBJ_COFF */ +extern const char ppc_symbol_chars[]; +#define tc_symbol_chars ppc_symbol_chars #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 -/* Branch prediction relocations must force relocation */ -#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) +/* 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_flags(FLAGS, ATTR, TYPE) ppc_section_flags (FLAGS, ATTR, TYPE) + +#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) 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(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_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