X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gas%2Fsubsegs.h;h=0848bb8dcd1431d6fac287eb251078ce5411960d;hb=735fc2ca685b55bf1debbfcea6d2ab544e58a530;hp=7f97eeb3622389f37a6f4e775f5e505ff68e0c4b;hpb=8b228fe958bcac8cf510ce2ed3d9ae24a717334e;p=deliverable%2Fbinutils-gdb.git

diff --git a/gas/subsegs.h b/gas/subsegs.h
index 7f97eeb362..0848bb8dcd 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) 1987-2020 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,
    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.  */
+   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,
@@ -36,52 +37,83 @@
  * 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 */
-
-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. */
-
-
-#ifdef MANY_SEGMENTS
-typedef struct 
-{
-	frchainS *frchainP;
-	int hadone;
-	int user_stuff;
-	/*  struct frag *frag_root;*/
-	/*  struct frag *last_frag;*/
-	fixS *fix_root;
-	fixS *fix_tail;
-	struct internal_scnhdr scnhdr;
-	symbolS *dot;
-	
-	struct lineno_list *lineno_list_head;	
-	struct lineno_list *lineno_list_tail;	
-	
-} segment_info_type;
-segment_info_type segment_info[];
-#else
-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.) */
+/* 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
 
-/* end of subsegs.h */
+#ifdef TC_SEGMENT_INFO_TYPE
+  TC_SEGMENT_INFO_TYPE tc_segment_info_data;
+#endif
+} segment_info_type;
+
+
+#define seg_info(sec) \
+  ((segment_info_type *) bfd_section_userdata (sec))
+
+extern symbolS *section_symbol (segT);
+
+extern void subsegs_print_statistics (FILE *);