/* subsegs.h -> subsegs.c
-
- Copyright (C) 1987, 1992 Free Software Foundation, Inc.
+ Copyright 1987, 1992, 1993, 1994, 1995, 1996, 1998, 2000, 2003, 2005,
+ 2006 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
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,
* represent code fragments, for that sub-segment, forward chained.
*/
+#include "obstack.h"
+
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 */
+ 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 */
};
typedef struct frchain frchainS;
-/* All subsegments' chains hang off here. NULL means no frchains yet. */
-extern frchainS *frchain_root;
-
-/* Frchain we are assembling into now That is, the current segment's
- frag chain, even if it contains no (complete) frags. */
+/* 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
-{
+typedef struct segment_info_struct {
frchainS *frchainP;
- int hadone : 1;
+ 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. */
- int bss : 1;
+ 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;
-#if defined (MANY_SEGMENTS) && !defined (BFD_ASSEMBLER)
- struct internal_scnhdr scnhdr;
-#endif
+
symbolS *dot;
struct lineno_list *lineno_list_head;
struct lineno_list *lineno_list_tail;
-#ifdef BFD_ASSEMBLER
/* 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;
-#endif
- union
- {
- /* Current size of section holding stabs strings. */
- unsigned long stab_string_size;
- /* Initial frag for ELF. */
- char *p;
- }
+ 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
-} segment_info_type;
-#ifdef BFD_ASSEMBLER
-
-#define seg_info(SEC) \
- ((segment_info_type *) bfd_get_section_userdata (stdoutput, (SEC)))
-extern symbolS *section_symbol PARAMS ((segT));
-
-#else /* ! BFD_ASSEMBLER */
-
-#ifdef MANY_SEGMENTS
-
-extern segment_info_type segment_info[];
-
-#define seg_info(SEC) (&segment_info[SEC])
-
-#else
+#ifdef TC_SEGMENT_INFO_TYPE
+ TC_SEGMENT_INFO_TYPE tc_segment_info_data;
+#endif
+} segment_info_type;
-/* Sentinel for frchain crawling. Points to the 1st data-segment
- frchain. (Which is pointed to by the last text-segment frchain.) */
-extern frchainS *data0_frchainP;
-extern frchainS *bss0_frchainP;
-#endif
+#define seg_info(sec) \
+ ((segment_info_type *) bfd_get_section_userdata (stdoutput, sec))
-#endif /* ! BFD_ASSEMBLER */
+extern symbolS *section_symbol (segT);
-/* end of subsegs.h */
+extern void subsegs_print_statistics (FILE *);