X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gas%2Fsubsegs.h;h=2a956026fefe79179029485013d509d178401766;hb=234c306803e0b3c423b3935562a029f3bad04482;hp=b8dbaf76e5840c85d98e68a4528299790e831e2c;hpb=3a69b3aca678a3caf3ade7f9d42d18233b097ec6;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/subsegs.h b/gas/subsegs.h index b8dbaf76e5..2a956026fe 100644 --- a/gas/subsegs.h +++ b/gas/subsegs.h @@ -1,21 +1,22 @@ /* subsegs.h -> subsegs.c - Copyright (C) 1987 Free Software Foundation, Inc. + Copyright (C) 1987-2019 Free Software Foundation, Inc. -This file is part of GAS, the GNU Assembler. + 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 1, or (at your option) -any later version. + 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 3, or (at your option) + any later version. -GAS is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. + GAS is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + 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, 675 Mass Ave, Cambridge, MA 02139, USA. */ + 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, 51 Franklin Street - Fifth Floor, Boston, MA + 02110-1301, USA. */ /* * For every sub-segment the user mentions in the ASsembler program, @@ -36,30 +37,83 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ * represent code fragments, for that sub-segment, forward chained. */ +#include "obstack.h" + +struct frch_cfi_data; + struct frchain /* control building of a frag chain */ { /* FRCH = FRagment CHain control */ - struct frag * frch_root; /* 1st struct frag in chain, or NULL */ - struct frag * frch_last; /* last struct frag in chain, or NULL */ - struct frchain * frch_next; /* next in chain of struct frchain-s */ - segT frch_seg; /* SEG_TEXT or SEG_DATA. */ - subsegT frch_subseg; /* subsegment number of this chain */ + struct frag *frch_root; /* 1st struct frag in chain, or NULL */ + struct frag *frch_last; /* last struct frag in chain, or NULL */ + struct frchain *frch_next; /* next in chain of struct frchain-s */ + subsegT frch_subseg; /* subsegment number of this chain */ + fixS *fix_root; /* Root of fixups for this subsegment. */ + fixS *fix_tail; /* Last fixup for this subsegment. */ + struct obstack frch_obstack; /* for objects in this frag chain */ + fragS *frch_frag_now; /* frag_now for this subsegment */ + struct frch_cfi_data *frch_cfi_data; }; typedef struct frchain frchainS; -extern frchainS * frchain_root; /* NULL means no frchains yet. */ - /* all subsegments' chains hang off here */ +/* Frchain we are assembling into now. That is, the current segment's + frag chain, even if it contains no (complete) frags. */ +extern frchainS *frchain_now; + +typedef struct segment_info_struct { + frchainS *frchainP; + unsigned int hadone : 1; + + /* This field is set if this is a .bss section which does not really + have any contents. Once upon a time a .bss section did not have + any frags, but that is no longer true. This field prevent the + SEC_HAS_CONTENTS flag from being set for the section even if + there are frags. */ + unsigned int bss : 1; + + int user_stuff; + + /* Fixups for this segment. This is only valid after the frchains + are run together. */ + fixS *fix_root; + fixS *fix_tail; + + symbolS *dot; + + struct lineno_list *lineno_list_head; + struct lineno_list *lineno_list_tail; + + /* Which BFD section does this gas segment correspond to? */ + asection *bfd_section; + + /* NULL, or pointer to the gas symbol that is the section symbol for + this section. sym->bsym and bfd_section->symbol should be the same. */ + symbolS *sym; + + /* Used by dwarf2dbg.c for this section's line table entries. */ + void *dwarf2_line_seg; + + union { + /* Current size of section holding stabs strings. */ + unsigned long stab_string_size; + /* Initial frag for ELF. */ + char *p; + } + stabu; + +#ifdef NEED_LITERAL_POOL + unsigned long literal_pool_size; +#endif + +#ifdef TC_SEGMENT_INFO_TYPE + TC_SEGMENT_INFO_TYPE tc_segment_info_data; +#endif +} segment_info_type; + -extern frchainS * frchain_now; - /* Frchain we are assembling into now */ - /* That is, the current segment's frag */ - /* chain, even if it contains no (complete) */ - /* frags. */ +#define seg_info(sec) \ + ((segment_info_type *) bfd_section_userdata (sec)) -extern frchainS * data0_frchainP; - /* Sentinel for frchain crawling. */ - /* Points to the 1st data-segment frchain. */ - /* (Which is pointed to by the last text- */ - /* segment frchain.) */ +extern symbolS *section_symbol (segT); -/* end: subsegs.h */ +extern void subsegs_print_statistics (FILE *);