/* write.h
-
- Copyright (C) 1987, 1992 Free Software Foundation, Inc.
+ Copyright 1987, 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2001,
+ 2002, 2003, 2005, 2006, 2007
+ 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,
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. */
-
-#ifndef TC_I960
-#ifdef hpux
-#define EXEC_MACHINE_TYPE HP9000S200_ID
-#endif
-#endif /* TC_I960 */
+ 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. */
-#ifndef LOCAL_LABEL
-#ifdef DOT_LABEL_PREFIX
-#define LOCAL_LABEL(name) (name[0] =='.' \
- && ( name [1] == 'L' || name [1] == '.' ))
-#else /* not defined DOT_LABEL_PREFIX */
-#define LOCAL_LABEL(name) (name [0] == 'L' )
-#endif /* not defined DOT_LABEL_PREFIX */
-#endif /* LOCAL_LABEL */
+#ifndef __write_h__
+#define __write_h__
-#define S_LOCAL_NAME(s) (LOCAL_LABEL(S_GET_NAME(s)))
+/* 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"
*/
struct fix
- {
- fragS *fx_frag; /* Which frag? */
- long fx_where; /* Where is the 1st byte to fix up? */
- symbolS *fx_addsy; /* NULL or Symbol whose value we add in. */
- symbolS *fx_subsy; /* NULL or Symbol whose value we subtract. */
- long fx_offset; /* Absolute number we add in. */
- struct fix *fx_next; /* NULL or -> next fixS. */
- short int fx_size; /* How many bytes are involved? */
- char fx_pcrel; /* TRUE: pc-relative. */
- char fx_pcrel_adjust; /* pc-relative offset adjust */
- char fx_im_disp; /* TRUE: value is a displacement */
- bit_fixS *fx_bit_fixP; /* IF NULL no bitfix's to do */
- char fx_bsr; /* sequent-hack */
-#if defined(TC_SPARC) || defined(TC_A29K) || defined(NEED_FX_R_TYPE)
- /* Hacks for machines where the type of reloc can't be
- worked out by looking at how big it is */
-
- int fx_r_type;
+{
+ /* These small fields are grouped together for compactness of
+ this structure, and efficiency of access on some architectures. */
+
+ /* Is this a pc-relative relocation? */
+ unsigned fx_pcrel : 1;
+
+ /* Is this value an immediate displacement? */
+ /* Only used on ns32k; merge it into TC_FIX_TYPE sometime. */
+ unsigned fx_im_disp : 2;
+
+ /* Some bits for the CPU specific code. */
+ unsigned fx_tcbit : 1;
+ unsigned fx_tcbit2 : 1;
+
+ /* Has this relocation already been applied? */
+ unsigned fx_done : 1;
+
+ /* Suppress overflow complaints on large addends. This is used
+ in the PowerPC ELF config to allow large addends on the
+ BFD_RELOC_{LO16,HI16,HI16_S} relocations.
+
+ @@ Can this be determined from BFD? */
+ unsigned fx_no_overflow : 1;
+
+ /* The value is signed when checking for overflow. */
+ unsigned fx_signed : 1;
+
+ /* pc-relative offset adjust (only used by some CPU specific code) */
+ signed char fx_pcrel_adjust;
+
+ /* How many bytes are involved? */
+ unsigned char fx_size;
+
+ /* Which frag does this fix apply to? */
+ fragS *fx_frag;
+
+ /* Where is the first byte to fix up? */
+ long fx_where;
+
+ /* NULL or Symbol whose value we add in. */
+ symbolS *fx_addsy;
+
+ /* NULL or Symbol whose value we subtract. */
+ symbolS *fx_subsy;
+
+ /* Absolute number we add in. */
+ valueT fx_offset;
+
+ /* The value of dot when the fixup expression was parsed. */
+ addressT fx_dot_value;
+
+ /* 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;
+
+ bfd_reloc_code_real_type fx_r_type;
+
+ /* 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
+ do anything but initialize it to zero. The use of it does need to
+ be coordinated between the cpu and format files, though. E.g., some
+ coff targets pass the `addend' field from the cpu file via this
+ field. I don't know why the `fx_offset' field above can't be used
+ for that; investigate later and document. KR */
+ valueT fx_addnumber;
+
+ /* The location of the instruction which created the reloc, used
+ in error messages. */
+ char *fx_file;
+ unsigned fx_line;
+
+#ifdef USING_CGEN
+ struct {
+ /* CGEN_INSN entry for this instruction. */
+ 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
- char fx_callj; /* TRUE if target is a 'callj' (used by i960) */
- long fx_addnumber;
- };
-typedef struct fix fixS;
-
-COMMON 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. */
+#ifdef TC_FIX_TYPE
+ /* Location where a backend can attach additional data
+ needed to perform fixups. */
+ TC_FIX_TYPE tc_fix_data;
#endif
-COMMON fixS **seg_fix_rootP, **seg_fix_tailP; /* -> one of above. */
-extern long string_byte_count;
-extern int section_alignment[];
-
-#if __STDC__ == 1
+};
-bit_fixS *bit_fix_new (int size, int offset, long base_type, long base_adj, long min, long max, long add);
-void append (char **charPP, char *fromP, unsigned long length);
-void record_alignment (segT seg, int align);
-void write_object_file (void);
-
-fixS *fix_new (fragS * frag,
- int where,
- int size,
- symbolS * add_symbol,
- symbolS * sub_symbol,
- long offset,
- int pcrel,
- int r_type);
-
-#else /* not __STDC__ */
-
-bit_fixS *bit_fix_new ();
-fixS *fix_new ();
-void append ();
-void record_alignment ();
-void write_object_file ();
-
-#endif /* not __STDC__ */
-
-/*
- * Local Variables:
- * comment-column: 0
- * fill-column: 131
- * End:
- */
+typedef struct fix fixS;
-/* end of write.h */
+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;
+ char *file;
+ unsigned int line;
+};
+
+extern int finalize_syms;
+extern symbolS *abs_section_sym;
+extern addressT dot_value;
+extern struct reloc_list* reloc_list;
+
+extern void append (char **charPP, char *fromP, unsigned long length);
+extern void record_alignment (segT seg, int align);
+extern int get_recorded_alignment (segT seg);
+extern void subsegs_finish (void);
+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 * frag, int where, int size, symbolS * add_symbol,
+ offsetT offset, int pcrel, bfd_reloc_code_real_type r_type);
+extern fixS *fix_at_start
+ (fragS * frag, int size, symbolS * add_symbol,
+ offsetT offset, int pcrel, bfd_reloc_code_real_type r_type);
+extern fixS *fix_new_exp
+ (fragS * frag, int where, int size, expressionS *exp, int pcrel,
+ bfd_reloc_code_real_type r_type);
+extern void write_print_statistics (FILE *);
+
+#endif /* __write_h__ */
projects / deliverable / binutils-gdb.git / blobdiff