X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gas%2Fwrite.h;h=96ad791d228cf475e58fa8d66dff6c75011277d8;hb=62e6599087efba193e0156d89ee65fb74fc99cb2;hp=186d2ada1b67498ef116d063213baf673adf901d;hpb=252b5132c753830d5fd56823373aed85f2a0db63;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/write.h b/gas/write.h index 186d2ada1b..96ad791d22 100644 --- a/gas/write.h +++ b/gas/write.h @@ -1,11 +1,11 @@ /* write.h - Copyright (C) 1987, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc. + Copyright (C) 1987-2019 Free Software Foundation, Inc. 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, @@ -15,33 +15,30 @@ 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. */ #ifndef __write_h__ #define __write_h__ -#ifndef TC_I960 -#ifdef hpux -#define EXEC_MACHINE_TYPE HP9000S200_ID -#endif -#endif /* TC_I960 */ - -#ifndef BFD_ASSEMBLER - -#ifndef LOCAL_LABEL -#define LOCAL_LABEL(name) (name [0] == 'L' ) -#endif - -#define S_LOCAL_NAME(s) (LOCAL_LABEL (S_GET_NAME (s))) - -#endif /* ! BFD_ASSEMBLER */ - /* This is the name of a fake symbol which will never appear in the assembler output. S_IS_LOCAL detects it because of the \001. */ +#ifndef FAKE_LABEL_NAME #define FAKE_LABEL_NAME "L0\001" +#endif -#include "bit_fix.h" +/* This is a special character that is used to indicate a fake label. + It must be present in FAKE_LABEL_NAME, although it does not have to + be the first character. It must not be a character that would be + found in a valid symbol name. + + Also be aware that the function _bfd_elf_is_local_label_name in + bfd/elf.c has an implicit assumption that FAKE_LABEL_CHAR is '\001'. + If this is not the case then FAKE_LABEL_NAME must start with ".L" in + order for the function to continue working. */ +#ifndef FAKE_LABEL_CHAR +#define FAKE_LABEL_CHAR '\001' +#endif /* * FixSs may be built up in any order. @@ -49,33 +46,15 @@ struct fix { + /* Next fixS in linked list, or NULL. */ + struct fix *fx_next; + /* These small fields are grouped together for compactness of this structure, and efficiency of access on some architectures. */ - /* pc-relative offset adjust (only used by m68k) */ - char fx_pcrel_adjust; - - /* How many bytes are involved? */ - unsigned char fx_size; - /* Is this a pc-relative relocation? */ unsigned fx_pcrel : 1; - /* Is this a relocation to a procedure linkage table entry? If so, - some of the reductions we try to apply are invalid. A better way - might be to represent PLT entries with different kinds of - symbols, and use normal relocations (with undefined symbols); - look into it for version 2.6. */ - unsigned fx_plt : 1; - - /* Is this value an immediate displacement? */ - /* Only used on i960 and ns32k; merge it into TC_FIX_TYPE sometime. */ - unsigned fx_im_disp : 2; - - /* A bit for the CPU specific code. - This probably can be folded into tc_fix_data, below. */ - unsigned fx_tcbit : 1; - /* Has this relocation already been applied? */ unsigned fx_done : 1; @@ -89,40 +68,41 @@ struct fix /* The value is signed when checking for overflow. */ unsigned fx_signed : 1; + /* Some bits for the CPU specific code. */ + unsigned fx_tcbit : 1; + unsigned fx_tcbit2 : 1; + + /* Spare bits. */ + unsigned fx_unused : 10; + + /* pc-relative offset adjust (only used by some CPU specific code) */ + int fx_pcrel_adjust : 8; + + /* How many bytes are involved? */ + unsigned fx_size : 8; + + bfd_reloc_code_real_type fx_r_type; + /* Which frag does this fix apply to? */ fragS *fx_frag; - /* Where is the first byte to fix up? */ - long fx_where; + /* The location within the frag where the fixup occurs. */ + unsigned long fx_where; - /* NULL or Symbol whose value we add in. */ + /* NULL or Symbol whose value we add in. */ symbolS *fx_addsy; - /* NULL or Symbol whose value we subtract. */ + /* NULL or Symbol whose value we subtract. */ symbolS *fx_subsy; - /* Absolute number we add in. */ + /* Absolute number we add in. */ valueT fx_offset; - /* Next fixS in linked list, or NULL. */ - struct fix *fx_next; - - /* If NULL, no bitfix's to do. */ - /* Only i960-coff and ns32k use this, and i960-coff stores an - integer. This can probably be folded into tc_fix_data, below. - @@ Alpha also uses it, but only to disable certain relocation - processing. */ - bit_fixS *fx_bit_fixP; + /* The value of dot when the fixup expression was parsed. */ + addressT fx_dot_value; -#ifdef BFD_ASSEMBLER - bfd_reloc_code_real_type fx_r_type; -#else -#ifdef NEED_FX_R_TYPE - /* Hack for machines where the type of reloc can't be - worked out by looking at how big it is. */ - int fx_r_type; -#endif -#endif + /* The frag fx_dot_value is based on. */ + fragS *fx_dot_frag; /* This field is sort of misnamed. It appears to be a sort of random scratch field, for use by the back ends. The main gas code doesn't @@ -135,7 +115,7 @@ struct fix /* The location of the instruction which created the reloc, used in error messages. */ - char *fx_file; + const char *fx_file; unsigned fx_line; #ifdef USING_CGEN @@ -144,6 +124,10 @@ struct fix const struct cgen_insn *insn; /* Target specific data, usually reloc number. */ int opinfo; + /* Which ifield this fixup applies to. */ + struct cgen_maybe_multi_ifield * field; + /* is this field is the MSB field in a set? */ + int msb_field_p; } fx_cgen; #endif @@ -156,53 +140,49 @@ struct fix typedef struct fix fixS; -#ifndef BFD_ASSEMBLER -extern char *next_object_file_charP; - -#ifndef MANY_SEGMENTS -COMMON fixS *text_fix_root, *text_fix_tail; /* Chains fixSs. */ -COMMON fixS *data_fix_root, *data_fix_tail; /* Chains fixSs. */ -COMMON fixS *bss_fix_root, *bss_fix_tail; /* Chains fixSs. */ -extern struct frag *text_last_frag; /* Last frag in segment. */ -extern struct frag *data_last_frag; /* Last frag in segment. */ -#endif -COMMON fixS **seg_fix_rootP, **seg_fix_tailP; /* -> one of above. */ -#endif - -extern long string_byte_count; -extern int section_alignment[]; - -extern bit_fixS *bit_fix_new - PARAMS ((int size, int offset, long base_type, long base_adj, long min, - long max, long add)); -extern void append PARAMS ((char **charPP, char *fromP, unsigned long length)); -extern void record_alignment PARAMS ((segT seg, int align)); -extern void subsegs_finish PARAMS ((void)); -extern void write_object_file PARAMS ((void)); -extern long relax_frag PARAMS ((fragS *, long)); -extern void relax_segment - PARAMS ((struct frag * seg_frag_root, segT seg_type)); - -extern void number_to_chars_littleendian PARAMS ((char *, valueT, int)); -extern void number_to_chars_bigendian PARAMS ((char *, valueT, int)); - -#ifdef BFD_ASSEMBLER -extern fixS *fix_new - PARAMS ((fragS * frag, int where, int size, symbolS * add_symbol, - offsetT offset, int pcrel, bfd_reloc_code_real_type r_type)); -extern fixS *fix_new_exp - PARAMS ((fragS * frag, int where, int size, expressionS *exp, int pcrel, - bfd_reloc_code_real_type r_type)); -#else -extern fixS *fix_new - PARAMS ((fragS * frag, int where, int size, symbolS * add_symbol, - offsetT offset, int pcrel, int r_type)); -extern fixS *fix_new_exp - PARAMS ((fragS * frag, int where, int size, expressionS *exp, int pcrel, - int r_type)); -#endif +struct reloc_list +{ + struct reloc_list *next; + union + { + struct + { + symbolS *offset_sym; + reloc_howto_type *howto; + symbolS *sym; + bfd_vma addend; + } a; + struct + { + asection *sec; + asymbol *s; + arelent r; + } b; + } u; + const char *file; + unsigned int line; +}; -extern void write_print_statistics PARAMS ((FILE *)); +extern int finalize_syms; +extern symbolS *abs_section_sym; +extern addressT dot_value; +extern fragS *dot_frag; +extern struct reloc_list* reloc_list; + +extern void append (char **, char *, unsigned long); +extern void record_alignment (segT, unsigned); +extern int get_recorded_alignment (segT); +extern void write_object_file (void); +extern long relax_frag (segT, fragS *, long); +extern int relax_segment (struct frag *, segT, int); +extern void number_to_chars_littleendian (char *, valueT, int); +extern void number_to_chars_bigendian (char *, valueT, int); +extern fixS *fix_new (fragS *, unsigned long, unsigned long, symbolS *, + offsetT, int, bfd_reloc_code_real_type); +extern fixS *fix_at_start (fragS *, unsigned long, symbolS *, + offsetT, int, bfd_reloc_code_real_type); +extern fixS *fix_new_exp (fragS *, unsigned long, unsigned long, + expressionS *, int, bfd_reloc_code_real_type); +extern void write_print_statistics (FILE *); #endif /* __write_h__ */ -/* end of write.h */