-/* write.h -> write.c */
+/* write.h
+
+ Copyright (C) 1987, 1992, 1993 Free Software Foundation, Inc.
-/* MODIFIED BY CHRIS BENENATI, FOR INTEL CORPORATION, 4/89 */
-/* write.h -> write.c
- Copyright (C) 1987 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)
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. */
#ifdef DOT_LABEL_PREFIX
#define LOCAL_LABEL(name) (name[0] =='.' \
&& ( name [1] == 'L' || name [1] == '.' ))
-#else /* not defined DOT_LABEL_PREFIX */
+#else /* not defined DOT_LABEL_PREFIX */
#define LOCAL_LABEL(name) (name [0] == 'L' )
#endif /* not defined DOT_LABEL_PREFIX */
#endif /* LOCAL_LABEL */
#define S_LOCAL_NAME(s) (LOCAL_LABEL(S_GET_NAME(s)))
-/* The bit_fix was implemented to support machines that need variables
- to be inserted in bitfields other than 1, 2 and 4 bytes.
- Furthermore it gives us a possibillity to mask in bits in the symbol
- when it's fixed in the objectcode and check the symbols limits.
-
- The or-mask is used to set the huffman bits in displacements for the
- ns32k port.
- The acbi, addqi, movqi, cmpqi instruction requires an assembler that
- can handle bitfields. Ie handle an expression, evaluate it and insert
- the result in an some bitfield. ( ex: 5 bits in a short field of a opcode)
- */
-
-struct bit_fix {
- int fx_bit_size; /* Length of bitfield */
- int fx_bit_offset; /* Bit offset to bitfield */
- long fx_bit_base; /* Where do we apply the bitfix.
- If this is zero, default is assumed. */
- long fx_bit_base_adj;/* Adjustment of base */
- long fx_bit_max; /* Signextended max for bitfield */
- long fx_bit_min; /* Signextended min for bitfield */
- long fx_bit_add; /* Or mask, used for huffman prefix */
-};
-typedef struct bit_fix bit_fixS;
+#include "bit_fix.h"
+
/*
* FixSs may be built up in any order.
*/
-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 */
- enum reloc_type fx_r_type; /* Sparc hacks */
- char fx_callj; /* TRUE if target is a 'callj'
- (used by i960) */
- long fx_addnumber;
-};
+struct fix
+ {
+ /* These small fields are grouped together for compactness of
+ this structure, and efficiency of access on some architectures. */
+ char fx_pcrel_adjust; /* pc-relative offset adjust */
+ unsigned fx_pcrel : 1; /* TRUE: pc-relative. */
+ unsigned fx_im_disp : 1; /* TRUE: value is a displacement */
+ unsigned fx_bsr : 1; /* sequent-hack */
+ /* TRUE if target is a 'callj' (used by i960) */
+ unsigned fx_callj : 1;
+ short int fx_size; /* How many bytes are involved? */
+
+ 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. */
+ valueT fx_offset; /* Absolute number we add in. */
+ struct fix *fx_next; /* NULL or -> next fixS. */
+ bit_fixS *fx_bit_fixP; /* IF NULL no bitfix's to do */
+#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
+
+ /* 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;
+ };
typedef struct fix fixS;
-COMMON char *next_object_file_charP;
+#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. */
#endif
COMMON fixS **seg_fix_rootP, **seg_fix_tailP; /* -> one of above. */
+#endif
+
extern long string_byte_count;
extern int section_alignment[];
-#ifdef __STDC__
-
-bit_fixS *bit_fix_new(char size, char 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,
- enum reloc_type r_type);
-
+bit_fixS *bit_fix_new PARAMS ((int size, int offset, long base_type,
+ long base_adj, long min, long max, long add));
+void append PARAMS ((char **charPP, char *fromP, unsigned long length));
+void record_alignment PARAMS ((segT seg, int align));
+void write_object_file PARAMS ((void));
+void relax_segment PARAMS ((struct frag * seg_frag_root, segT seg_type));
+
+#ifdef BFD_ASSEMBLER
+fixS *fix_new PARAMS ((fragS * frag, int where, int size,
+ symbolS * add_symbol, offsetT offset, int pcrel,
+ bfd_reloc_code_real_type r_type));
+fixS *fix_new_exp PARAMS ((fragS * frag, int where, int size,
+ expressionS *exp, int pcrel,
+ bfd_reloc_code_real_type r_type));
#else
-
-bit_fixS *bit_fix_new();
-fixS *fix_new();
-void append();
-void record_alignment();
-void write_object_file();
-
-#endif /* __STDC__ */
-
-/*
- * Local Variables:
- * comment-column: 0
- * fill-column: 131
- * End:
- */
+fixS *fix_new PARAMS ((fragS * frag, int where, int size,
+ symbolS * add_symbol, offsetT offset, int pcrel,
+ int r_type));
+fixS *fix_new_exp PARAMS ((fragS * frag, int where, int size,
+ expressionS *exp, int pcrel, int r_type));
+#endif
/* end of write.h */
projects / deliverable / binutils-gdb.git / blobdiff