1 /* tc-hppa.c -- Assemble for the PA
2 Copyright (C) 1989 Free Software Foundation, Inc.
4 This file is part of GAS, the GNU Assembler.
6 GAS is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 1, or (at your option)
11 GAS is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GAS; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
21 /* HP PA-RISC support was contributed by the Center for Software Science
22 at the University of Utah. */
30 #include "../bfd/libhppa.h"
31 #include "../bfd/libbfd.h"
33 /* Be careful, this file includes data *declarations*. */
34 #include "opcode/hppa.h"
36 /* A "convient" place to put object file dependencies which do
37 not need to be seen outside of tc-hppa.c. */
39 /* Names of various debugging spaces/subspaces. */
40 #define GDB_DEBUG_SPACE_NAME ".stab"
41 #define GDB_STRINGS_SUBSPACE_NAME ".stabstr"
42 #define GDB_SYMBOLS_SUBSPACE_NAME ".stab"
43 #define UNWIND_SECTION_NAME ".hppa_unwind"
44 /* Nonzero if CODE is a fixup code needing further processing. */
46 /* Object file formats specify relocation types. */
47 typedef elf32_hppa_reloc_type reloc_type
;
49 /* Object file formats specify BFD symbol types. */
50 typedef elf_symbol_type obj_symbol_type
;
52 /* How to generate a relocation. */
53 #define hppa_gen_reloc_type hppa_elf_gen_reloc_type
56 #define obj_version obj_elf_version
58 /* Some local functions only used by ELF. */
59 static void pa_build_symextn_section
PARAMS ((void));
60 static void hppa_tc_make_symextn_section
PARAMS ((void));
64 /* Names of various debugging spaces/subspaces. */
65 #define GDB_DEBUG_SPACE_NAME "$GDB_DEBUG$"
66 #define GDB_STRINGS_SUBSPACE_NAME "$GDB_STRINGS$"
67 #define GDB_SYMBOLS_SUBSPACE_NAME "$GDB_SYMBOLS$"
68 #define UNWIND_SECTION_NAME "$UNWIND$"
70 /* Object file formats specify relocation types. */
71 typedef int reloc_type
;
74 #define obj_version obj_som_version
76 /* How to generate a relocation. */
77 #define hppa_gen_reloc_type hppa_som_gen_reloc_type
79 /* Object file formats specify BFD symbol types. */
80 typedef som_symbol_type obj_symbol_type
;
83 /* Various structures and types used internally in tc-hppa.c. */
85 /* Unwind table and descriptor. FIXME: Sync this with GDB version. */
89 unsigned int cannot_unwind
:1;
90 unsigned int millicode
:1;
91 unsigned int millicode_save_rest
:1;
92 unsigned int region_desc
:2;
93 unsigned int save_sr
:2;
94 unsigned int entry_fr
:4;
95 unsigned int entry_gr
:5;
96 unsigned int args_stored
:1;
97 unsigned int call_fr
:5;
98 unsigned int call_gr
:5;
99 unsigned int save_sp
:1;
100 unsigned int save_rp
:1;
101 unsigned int save_rp_in_frame
:1;
102 unsigned int extn_ptr_defined
:1;
103 unsigned int cleanup_defined
:1;
105 unsigned int hpe_interrupt_marker
:1;
106 unsigned int hpux_interrupt_marker
:1;
107 unsigned int reserved
:3;
108 unsigned int frame_size
:27;
113 /* Starting and ending offsets of the region described by
115 unsigned int start_offset
;
116 unsigned int end_offset
;
117 struct unwind_desc descriptor
;
120 /* This structure is used by the .callinfo, .enter, .leave pseudo-ops to
121 control the entry and exit code they generate. It is also used in
122 creation of the correct stack unwind descriptors.
124 NOTE: GAS does not support .enter and .leave for the generation of
125 prologues and epilogues. FIXME.
127 The fields in structure roughly correspond to the arguments available on the
128 .callinfo pseudo-op. */
132 /* Size of the stack frame. */
135 /* Should sr3 be saved in the prologue? */
138 /* Does this function make calls? */
141 /* The unwind descriptor being built. */
142 struct unwind_table ci_unwind
;
144 /* Name of this function. */
145 symbolS
*start_symbol
;
147 /* (temporary) symbol used to mark the end of this function. */
150 /* frags associated with start and end of this function. */
154 /* frags for starting/ending offset of this descriptor. */
155 fragS
*start_offset_frag
;
156 fragS
*end_offset_frag
;
158 /* The location within {start,end}_offset_frag to find the
159 {start,end}_offset. */
160 int start_frag_where
;
163 /* Fixups (relocations) for start_offset and end_offset. */
167 /* Next entry in the chain. */
168 struct call_info
*ci_next
;
171 /* Operand formats for FP instructions. Note not all FP instructions
172 allow all four formats to be used (for example fmpysub only allows
176 SGL
, DBL
, ILLEGAL_FMT
, QUAD
180 /* This structure contains information needed to assemble
181 individual instructions. */
184 /* Holds the opcode after parsing by pa_ip. */
185 unsigned long opcode
;
187 /* Holds an expression associated with the current instruction. */
190 /* Does this instruction use PC-relative addressing. */
193 /* Floating point formats for operand1 and operand2. */
194 fp_operand_format fpof1
;
195 fp_operand_format fpof2
;
197 /* Holds the field selector for this instruction
198 (for example L%, LR%, etc). */
201 /* Holds any argument relocation bits associated with this
202 instruction. (instruction should be some sort of call). */
205 /* The format specification for this instruction. */
208 /* The relocation (if any) associated with this instruction. */
212 /* PA-89 floating point registers are arranged like this:
215 +--------------+--------------+
216 | 0 or 16L | 16 or 16R |
217 +--------------+--------------+
218 | 1 or 17L | 17 or 17R |
219 +--------------+--------------+
227 +--------------+--------------+
228 | 14 or 30L | 30 or 30R |
229 +--------------+--------------+
230 | 15 or 31L | 31 or 31R |
231 +--------------+--------------+
234 The following is a version of pa_parse_number that
235 handles the L/R notation and returns the correct
236 value to put into the instruction register field.
237 The correct value to put into the instruction is
238 encoded in the structure 'pa_89_fp_reg_struct'. */
240 struct pa_89_fp_reg_struct
242 /* The register number. */
249 /* Additional information needed to build argument relocation stubs. */
252 /* The argument relocation specification. */
253 unsigned int arg_reloc
;
255 /* Number of arguments. */
256 unsigned int arg_count
;
259 /* This structure defines an entry in the subspace dictionary
262 struct subspace_dictionary_chain
264 /* Index of containing space. */
265 unsigned long ssd_space_index
;
267 /* Which quadrant within the space this subspace should be loaded into. */
268 unsigned char ssd_quadrant
;
270 /* Alignment (in bytes) for this subspace. */
271 unsigned long ssd_alignment
;
273 /* Access control bits to determine read/write/execute permissions
274 as well as gateway privilege promotions. */
275 unsigned char ssd_access_control_bits
;
277 /* A sorting key so that it is possible to specify ordering of
278 subspaces within a space. */
279 unsigned char ssd_sort_key
;
281 /* Nonzero of this space should be zero filled. */
282 unsigned long ssd_zero
;
284 /* Nonzero if this is a common subspace. */
285 unsigned char ssd_common
;
287 /* Nonzero if this is a common subspace which allows symbols to be
289 unsigned char ssd_dup_common
;
291 /* Nonzero if this subspace is loadable. Note loadable subspaces
292 must be contained within loadable spaces; unloadable subspaces
293 must be contained in unloadable spaces. */
294 unsigned char ssd_loadable
;
296 /* Nonzero if this subspace contains only code. */
297 unsigned char ssd_code_only
;
299 /* Starting offset of this subspace. */
300 unsigned long ssd_subspace_start
;
302 /* Length of this subspace. */
303 unsigned long ssd_subspace_length
;
305 /* Name of this subspace. */
308 /* GAS segment and subsegment associated with this subspace. */
312 /* Index of this subspace within the subspace dictionary of the object
313 file. Not used until object file is written. */
314 int object_file_index
;
316 /* The size of the last alignment request for this subspace. */
319 /* Next space in the subspace dictionary chain. */
320 struct subspace_dictionary_chain
*ssd_next
;
323 typedef struct subspace_dictionary_chain ssd_chain_struct
;
325 /* This structure defines an entry in the subspace dictionary
328 struct space_dictionary_chain
331 /* Holds the index into the string table of the name of this
333 unsigned int sd_name_index
;
335 /* Nonzero if the space is loadable. */
336 unsigned int sd_loadable
;
338 /* Nonzero if this space has been defined by the user code or
339 as a default space. */
340 unsigned int sd_defined
;
342 /* Nonzero if this spaces has been defined by the user code. */
343 unsigned int sd_user_defined
;
345 /* Nonzero if this space is not sharable. */
346 unsigned int sd_private
;
348 /* The space number (or index). */
349 unsigned int sd_spnum
;
351 /* The sort key for this space. May be used to determine how to lay
352 out the spaces within the object file. */
353 unsigned char sd_sort_key
;
355 /* The name of this subspace. */
358 /* GAS segment to which this subspace corresponds. */
361 /* Current subsegment number being used. */
364 /* The chain of subspaces contained within this space. */
365 ssd_chain_struct
*sd_subspaces
;
367 /* The next entry in the space dictionary chain. */
368 struct space_dictionary_chain
*sd_next
;
371 typedef struct space_dictionary_chain sd_chain_struct
;
373 /* Structure for previous label tracking. Needed so that alignments,
374 callinfo declarations, etc can be easily attached to a particular
376 typedef struct label_symbol_struct
378 struct symbol
*lss_label
;
379 sd_chain_struct
*lss_space
;
380 struct label_symbol_struct
*lss_next
;
384 /* This structure defines attributes of the default subspace
385 dictionary entries. */
387 struct default_subspace_dict
389 /* Name of the subspace. */
392 /* FIXME. Is this still needed? */
395 /* Nonzero if this subspace is loadable. */
398 /* Nonzero if this subspace contains only code. */
401 /* Nonzero if this is a common subspace. */
404 /* Nonzero if this is a common subspace which allows symbols
405 to be multiply defined. */
408 /* Nonzero if this subspace should be zero filled. */
411 /* Sort key for this subspace. */
414 /* Access control bits for this subspace. Can represent RWX access
415 as well as privilege level changes for gateways. */
418 /* Index of containing space. */
421 /* Alignment (in bytes) of this subspace. */
424 /* Quadrant within space where this subspace should be loaded. */
427 /* An index into the default spaces array. */
430 /* An alias for this section (or NULL if no alias exists). */
433 /* Subsegment associated with this subspace. */
437 /* This structure defines attributes of the default space
438 dictionary entries. */
440 struct default_space_dict
442 /* Name of the space. */
445 /* Space number. It is possible to identify spaces within
446 assembly code numerically! */
449 /* Nonzero if this space is loadable. */
452 /* Nonzero if this space is "defined". FIXME is still needed */
455 /* Nonzero if this space can not be shared. */
458 /* Sort key for this space. */
461 /* Segment associated with this space. */
464 /* An alias for this section (or NULL if no alias exists). */
468 /* Extra information needed to perform fixups (relocations) on the PA. */
469 struct hppa_fix_struct
471 /* The field selector. */
477 /* Format of fixup. */
480 /* Argument relocation bits. */
483 /* The unwind descriptor associated with this fixup. */
487 /* Structure to hold information about predefined registers. */
495 /* This structure defines the mapping from a FP condition string
496 to a condition number which can be recorded in an instruction. */
503 /* This structure defines a mapping from a field selector
504 string to a field selector type. */
505 struct selector_entry
511 /* Prototypes for functions local to tc-hppa.c. */
513 static fp_operand_format pa_parse_fp_format
PARAMS ((char **s
));
514 static void pa_cons
PARAMS ((int));
515 static void pa_data
PARAMS ((int));
516 static void pa_desc
PARAMS ((int));
517 static void pa_float_cons
PARAMS ((int));
518 static void pa_fill
PARAMS ((int));
519 static void pa_lcomm
PARAMS ((int));
520 static void pa_lsym
PARAMS ((int));
521 static void pa_stringer
PARAMS ((int));
522 static void pa_text
PARAMS ((int));
523 static void pa_version
PARAMS ((int));
524 static int pa_parse_fp_cmp_cond
PARAMS ((char **));
525 static int get_expression
PARAMS ((char *));
526 static int pa_get_absolute_expression
PARAMS ((char *));
527 static int evaluate_absolute
PARAMS ((expressionS
, int));
528 static unsigned int pa_build_arg_reloc
PARAMS ((char *));
529 static unsigned int pa_align_arg_reloc
PARAMS ((unsigned int, unsigned int));
530 static int pa_parse_nullif
PARAMS ((char **));
531 static int pa_parse_nonneg_cmpsub_cmpltr
PARAMS ((char **, int));
532 static int pa_parse_neg_cmpsub_cmpltr
PARAMS ((char **, int));
533 static int pa_parse_neg_add_cmpltr
PARAMS ((char **, int));
534 static int pa_parse_nonneg_add_cmpltr
PARAMS ((char **, int));
535 static void pa_block
PARAMS ((int));
536 static void pa_call
PARAMS ((int));
537 static void pa_call_args
PARAMS ((struct call_desc
*));
538 static void pa_callinfo
PARAMS ((int));
539 static void pa_code
PARAMS ((int));
540 static void pa_comm
PARAMS ((int));
541 static void pa_copyright
PARAMS ((int));
542 static void pa_end
PARAMS ((int));
543 static void pa_enter
PARAMS ((int));
544 static void pa_entry
PARAMS ((int));
545 static void pa_equ
PARAMS ((int));
546 static void pa_exit
PARAMS ((int));
547 static void pa_export
PARAMS ((int));
548 static void pa_export_args
PARAMS ((symbolS
*));
549 static void pa_import
PARAMS ((int));
550 static void pa_label
PARAMS ((int));
551 static void pa_leave
PARAMS ((int));
552 static void pa_origin
PARAMS ((int));
553 static void pa_proc
PARAMS ((int));
554 static void pa_procend
PARAMS ((int));
555 static void pa_space
PARAMS ((int));
556 static void pa_spnum
PARAMS ((int));
557 static void pa_subspace
PARAMS ((int));
558 static void pa_param
PARAMS ((int));
559 static void pa_undefine_label
PARAMS ((void));
560 static int need_89_opcode
PARAMS ((struct pa_it
*,
561 struct pa_89_fp_reg_struct
*));
562 static int pa_parse_number
PARAMS ((char **, struct pa_89_fp_reg_struct
*));
563 static label_symbol_struct
*pa_get_label
PARAMS ((void));
564 static sd_chain_struct
*create_new_space
PARAMS ((char *, int, char,
567 static ssd_chain_struct
* create_new_subspace
PARAMS ((sd_chain_struct
*,
572 static ssd_chain_struct
*update_subspace
PARAMS ((char *, char, char, char,
573 char, char, char, int,
574 int, int, int, subsegT
));
575 static sd_chain_struct
*is_defined_space
PARAMS ((char *));
576 static ssd_chain_struct
*is_defined_subspace
PARAMS ((char *, subsegT
));
577 static sd_chain_struct
*pa_segment_to_space
PARAMS ((asection
*));
578 static ssd_chain_struct
* pa_subsegment_to_subspace
PARAMS ((asection
*,
580 static sd_chain_struct
*pa_find_space_by_number
PARAMS ((int));
581 static unsigned int pa_subspace_start
PARAMS ((sd_chain_struct
*, int));
582 static void pa_ip
PARAMS ((char *));
583 static void fix_new_hppa
PARAMS ((fragS
*, int, short int, symbolS
*,
584 long, expressionS
*, int,
585 bfd_reloc_code_real_type
, long,
587 static void md_apply_fix_1
PARAMS ((fixS
*, long));
588 static int is_end_of_statement
PARAMS ((void));
589 static int reg_name_search
PARAMS ((char *));
590 static int pa_chk_field_selector
PARAMS ((char **));
591 static int is_same_frag
PARAMS ((fragS
*, fragS
*));
592 static void pa_build_unwind_subspace
PARAMS ((struct call_info
*));
593 static void process_exit
PARAMS ((void));
594 static sd_chain_struct
*pa_parse_space_stmt
PARAMS ((char *, int));
595 static void pa_align_subseg
PARAMS ((asection
*, subsegT
));
596 static int log2
PARAMS ((int));
597 static int pa_next_subseg
PARAMS ((sd_chain_struct
*));
598 static unsigned int pa_stringer_aux
PARAMS ((char *));
599 static void pa_spaces_begin
PARAMS ((void));
602 /* File and gloally scoped variable declarations. */
604 /* Root and final entry in the space chain. */
605 static sd_chain_struct
*space_dict_root
;
606 static sd_chain_struct
*space_dict_last
;
608 /* The current space and subspace. */
609 static sd_chain_struct
*current_space
;
610 static ssd_chain_struct
*current_subspace
;
612 /* Root of the call_info chain. */
613 static struct call_info
*call_info_root
;
615 /* The last call_info (for functions) structure
616 seen so it can be associated with fixups and
618 static struct call_info
*last_call_info
;
620 /* The last call description (for actual calls). */
621 static struct call_desc last_call_desc
;
623 /* Relaxation isn't supported for the PA yet. */
624 const relax_typeS md_relax_table
[] = {0};
626 /* Jumps are always the same size -- one instruction. */
627 int md_short_jump_size
= 4;
628 int md_long_jump_size
= 4;
630 /* handle of the OPCODE hash table */
631 static struct hash_control
*op_hash
= NULL
;
633 /* This array holds the chars that always start a comment. If the
634 pre-processor is disabled, these aren't very useful. */
635 const char comment_chars
[] = ";";
637 /* Table of pseudo ops for the PA. FIXME -- how many of these
638 are now redundant with the overall GAS and the object file
640 const pseudo_typeS md_pseudo_table
[] =
642 /* align pseudo-ops on the PA specify the actual alignment requested,
643 not the log2 of the requested alignment. */
644 {"align", s_align_bytes
, 0},
645 {"ALIGN", s_align_bytes
, 0},
646 {"block", pa_block
, 1},
647 {"BLOCK", pa_block
, 1},
648 {"blockz", pa_block
, 0},
649 {"BLOCKZ", pa_block
, 0},
650 {"byte", pa_cons
, 1},
651 {"BYTE", pa_cons
, 1},
652 {"call", pa_call
, 0},
653 {"CALL", pa_call
, 0},
654 {"callinfo", pa_callinfo
, 0},
655 {"CALLINFO", pa_callinfo
, 0},
656 {"code", pa_code
, 0},
657 {"CODE", pa_code
, 0},
658 {"comm", pa_comm
, 0},
659 {"COMM", pa_comm
, 0},
660 {"copyright", pa_copyright
, 0},
661 {"COPYRIGHT", pa_copyright
, 0},
662 {"data", pa_data
, 0},
663 {"DATA", pa_data
, 0},
664 {"desc", pa_desc
, 0},
665 {"DESC", pa_desc
, 0},
666 {"double", pa_float_cons
, 'd'},
667 {"DOUBLE", pa_float_cons
, 'd'},
670 {"enter", pa_enter
, 0},
671 {"ENTER", pa_enter
, 0},
672 {"entry", pa_entry
, 0},
673 {"ENTRY", pa_entry
, 0},
676 {"exit", pa_exit
, 0},
677 {"EXIT", pa_exit
, 0},
678 {"export", pa_export
, 0},
679 {"EXPORT", pa_export
, 0},
680 {"fill", pa_fill
, 0},
681 {"FILL", pa_fill
, 0},
682 {"float", pa_float_cons
, 'f'},
683 {"FLOAT", pa_float_cons
, 'f'},
684 {"half", pa_cons
, 2},
685 {"HALF", pa_cons
, 2},
686 {"import", pa_import
, 0},
687 {"IMPORT", pa_import
, 0},
690 {"label", pa_label
, 0},
691 {"LABEL", pa_label
, 0},
692 {"lcomm", pa_lcomm
, 0},
693 {"LCOMM", pa_lcomm
, 0},
694 {"leave", pa_leave
, 0},
695 {"LEAVE", pa_leave
, 0},
696 {"long", pa_cons
, 4},
697 {"LONG", pa_cons
, 4},
698 {"lsym", pa_lsym
, 0},
699 {"LSYM", pa_lsym
, 0},
700 {"octa", pa_cons
, 16},
701 {"OCTA", pa_cons
, 16},
702 {"org", pa_origin
, 0},
703 {"ORG", pa_origin
, 0},
704 {"origin", pa_origin
, 0},
705 {"ORIGIN", pa_origin
, 0},
706 {"param", pa_param
, 0},
707 {"PARAM", pa_param
, 0},
708 {"proc", pa_proc
, 0},
709 {"PROC", pa_proc
, 0},
710 {"procend", pa_procend
, 0},
711 {"PROCEND", pa_procend
, 0},
712 {"quad", pa_cons
, 8},
713 {"QUAD", pa_cons
, 8},
716 {"short", pa_cons
, 2},
717 {"SHORT", pa_cons
, 2},
718 {"single", pa_float_cons
, 'f'},
719 {"SINGLE", pa_float_cons
, 'f'},
720 {"space", pa_space
, 0},
721 {"SPACE", pa_space
, 0},
722 {"spnum", pa_spnum
, 0},
723 {"SPNUM", pa_spnum
, 0},
724 {"string", pa_stringer
, 0},
725 {"STRING", pa_stringer
, 0},
726 {"stringz", pa_stringer
, 1},
727 {"STRINGZ", pa_stringer
, 1},
728 {"subspa", pa_subspace
, 0},
729 {"SUBSPA", pa_subspace
, 0},
730 {"text", pa_text
, 0},
731 {"TEXT", pa_text
, 0},
732 {"version", pa_version
, 0},
733 {"VERSION", pa_version
, 0},
734 {"word", pa_cons
, 4},
735 {"WORD", pa_cons
, 4},
739 /* This array holds the chars that only start a comment at the beginning of
740 a line. If the line seems to have the form '# 123 filename'
741 .line and .file directives will appear in the pre-processed output.
743 Note that input_file.c hand checks for '#' at the beginning of the
744 first line of the input file. This is because the compiler outputs
745 #NO_APP at the beginning of its output.
747 Also note that '/*' will always start a comment. */
748 const char line_comment_chars
[] = "#";
750 /* This array holds the characters which act as line separators. */
751 const char line_separator_chars
[] = "!";
753 /* Chars that can be used to separate mant from exp in floating point nums. */
754 const char EXP_CHARS
[] = "eE";
756 /* Chars that mean this number is a floating point constant.
757 As in 0f12.456 or 0d1.2345e12.
759 Be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be
760 changed in read.c. Ideally it shouldn't hae to know abou it at
761 all, but nothing is ideal around here. */
762 const char FLT_CHARS
[] = "rRsSfFdDxXpP";
764 static struct pa_it the_insn
;
766 /* Points to the end of an expression just parsed by get_expressoin
767 and friends. FIXME. This shouldn't be handled with a file-global
769 static char *expr_end
;
771 /* Nonzero if a .callinfo appeared within the current procedure. */
772 static int callinfo_found
;
774 /* Nonzero if the assembler is currently within a .entry/.exit pair. */
775 static int within_entry_exit
;
777 /* Nonzero if the assembler has completed exit processing for the
778 current procedure. */
779 static int exit_processing_complete
;
781 /* Nonzero if the assembler is currently within a procedure definition. */
782 static int within_procedure
;
784 /* Handle on strucutre which keep track of the last symbol
785 seen in each subspace. */
786 static label_symbol_struct
*label_symbols_rootp
= NULL
;
788 /* Holds the last field selector. */
789 static int hppa_field_selector
;
791 /* Nonzero if errors are to be printed. */
792 static int print_errors
= 1;
794 /* List of registers that are pre-defined:
796 Each general register has one predefined name of the form
797 %r<REGNUM> which has the value <REGNUM>.
799 Space and control registers are handled in a similar manner,
800 but use %sr<REGNUM> and %cr<REGNUM> as their predefined names.
802 Likewise for the floating point registers, but of the form
803 %fr<REGNUM>. Floating point registers have additional predefined
804 names with 'L' and 'R' suffixes (e.g. %fr19L, %fr19R) which
805 again have the value <REGNUM>.
807 Many registers also have synonyms:
809 %r26 - %r23 have %arg0 - %arg3 as synonyms
810 %r28 - %r29 have %ret0 - %ret1 as synonyms
811 %r30 has %sp as a synonym
813 Almost every control register has a synonym; they are not listed
816 The table is sorted. Suitable for searching by a binary search. */
818 static const struct pd_reg pre_defined_registers
[] =
1028 /* This table is sorted by order of the length of the string. This is
1029 so we check for <> before we check for <. If we had a <> and checked
1030 for < first, we would get a false match. */
1031 static const struct fp_cond_map fp_cond_map
[] =
1067 static const struct selector_entry selector_table
[] =
1102 /* default space and subspace dictionaries */
1104 #define GDB_SYMBOLS GDB_SYMBOLS_SUBSPACE_NAME
1105 #define GDB_STRINGS GDB_STRINGS_SUBSPACE_NAME
1107 /* pre-defined subsegments (subspaces) for the HPPA. */
1108 #define SUBSEG_CODE 0
1109 #define SUBSEG_DATA 0
1110 #define SUBSEG_LIT 1
1111 #define SUBSEG_BSS 2
1112 #define SUBSEG_UNWIND 3
1113 #define SUBSEG_GDB_STRINGS 0
1114 #define SUBSEG_GDB_SYMBOLS 1
1116 static struct default_subspace_dict pa_def_subspaces
[] =
1118 {"$CODE$", 1, 1, 1, 0, 0, 0, 24, 0x2c, 0, 8, 0, 0, ".text", SUBSEG_CODE
},
1119 {"$DATA$", 1, 1, 0, 0, 0, 0, 24, 0x1f, 1, 8, 1, 1, ".data", SUBSEG_DATA
},
1120 {"$LIT$", 1, 1, 0, 0, 0, 0, 16, 0x2c, 0, 8, 0, 0, ".text", SUBSEG_LIT
},
1121 {"$BSS$", 1, 1, 0, 0, 0, 1, 80, 0x1f, 1, 8, 1, 1, ".bss", SUBSEG_BSS
},
1122 {"$UNWIND$", 1, 1, 0, 0, 0, 0, 64, 0x2c, 0, 4, 0, 0, ".hppa_unwind", SUBSEG_UNWIND
},
1123 {NULL
, 0, 1, 0, 0, 0, 0, 255, 0x1f, 0, 4, 0, 0, 0}
1126 static struct default_space_dict pa_def_spaces
[] =
1128 {"$TEXT$", 0, 1, 1, 0, 8, ASEC_NULL
, ".text"},
1129 {"$PRIVATE$", 1, 1, 1, 1, 16, ASEC_NULL
, ".data"},
1130 {NULL
, 0, 0, 0, 0, 0, ASEC_NULL
, NULL
}
1133 /* Misc local definitions used by the assembler. */
1135 /* Return nonzero if the string pointed to by S potentially represents
1136 a right or left half of a FP register */
1137 #define IS_R_SELECT(S) (*(S) == 'R' || *(S) == 'r')
1138 #define IS_L_SELECT(S) (*(S) == 'L' || *(S) == 'l')
1140 /* These macros are used to maintain spaces/subspaces. */
1141 #define SPACE_DEFINED(space_chain) (space_chain)->sd_defined
1142 #define SPACE_USER_DEFINED(space_chain) (space_chain)->sd_user_defined
1143 #define SPACE_PRIVATE(space_chain) (space_chain)->sd_private
1144 #define SPACE_LOADABLE(space_chain) (space_chain)->sd_loadable
1145 #define SPACE_SPNUM(space_chain) (space_chain)->sd_spnum
1146 #define SPACE_SORT(space_chain) (space_chain)->sd_sort_key
1147 #define SPACE_NAME(space_chain) (space_chain)->sd_name
1148 #define SPACE_NAME_INDEX(space_chain) (space_chain)->sd_name_index
1150 #define SUBSPACE_SPACE_INDEX(ss_chain) (ss_chain)->ssd_space_index
1151 #define SUBSPACE_QUADRANT(ss_chain) (ss_chain)->ssd_quadrant
1152 #define SUBSPACE_ALIGN(ss_chain) (ss_chain)->ssd_alignment
1153 #define SUBSPACE_ACCESS(ss_chain) (ss_chain)->ssd_access_control_bits
1154 #define SUBSPACE_SORT(ss_chain) (ss_chain)->ssd_sort_key
1155 #define SUBSPACE_COMMON(ss_chain) (ss_chain)->ssd_common
1156 #define SUBSPACE_ZERO(ss_chain) (ss_chain)->ssd_zero
1157 #define SUBSPACE_DUP_COMM(ss_chain) (ss_chain)->ssd_dup_common
1158 #define SUBSPACE_CODE_ONLY(ss_chain) (ss_chain)->ssd_code_only
1159 #define SUBSPACE_LOADABLE(ss_chain) (ss_chain)->ssd_loadable
1160 #define SUBSPACE_SUBSPACE_START(ss_chain) (ss_chain)->ssd_subspace_start
1161 #define SUBSPACE_SUBSPACE_LENGTH(ss_chain) (ss_chain)->ssd_subspace_length
1162 #define SUBSPACE_NAME(ss_chain) (ss_chain)->ssd_name
1164 #define is_DP_relative(exp) \
1165 ((exp).X_op == O_subtract \
1166 && strcmp((exp).X_op_symbol->bsym->name, "$global$") == 0)
1168 #define is_PC_relative(exp) \
1169 ((exp).X_op == O_subtract \
1170 && strcmp((exp).X_op_symbol->bsym->name, "$PIC_pcrel$0") == 0)
1172 #define is_complex(exp) \
1173 ((exp).X_op != O_constant && (exp).X_op != O_symbol)
1175 /* Actual functions to implement the PA specific code for the assembler. */
1177 /* Returns a pointer to the label_symbol_struct for the current space.
1178 or NULL if no label_symbol_struct exists for the current space. */
1180 static label_symbol_struct
*
1183 label_symbol_struct
*label_chain
;
1184 sd_chain_struct
*space_chain
= pa_segment_to_space (now_seg
);
1186 for (label_chain
= label_symbols_rootp
;
1188 label_chain
= label_chain
->lss_next
)
1189 if (space_chain
== label_chain
->lss_space
&& label_chain
->lss_label
)
1195 /* Defines a label for the current space. If one is already defined,
1196 this function will replace it with the new label. */
1199 pa_define_label (symbol
)
1202 label_symbol_struct
*label_chain
= pa_get_label ();
1203 sd_chain_struct
*space_chain
= pa_segment_to_space (now_seg
);
1206 label_chain
->lss_label
= symbol
;
1209 /* Create a new label entry and add it to the head of the chain. */
1211 = (label_symbol_struct
*) xmalloc (sizeof (label_symbol_struct
));
1212 label_chain
->lss_label
= symbol
;
1213 label_chain
->lss_space
= space_chain
;
1214 label_chain
->lss_next
= NULL
;
1216 if (label_symbols_rootp
)
1217 label_chain
->lss_next
= label_symbols_rootp
;
1219 label_symbols_rootp
= label_chain
;
1223 /* Removes a label definition for the current space.
1224 If there is no label_symbol_struct entry, then no action is taken. */
1227 pa_undefine_label ()
1229 label_symbol_struct
*label_chain
;
1230 label_symbol_struct
*prev_label_chain
= NULL
;
1231 sd_chain_struct
*space_chain
= pa_segment_to_space (now_seg
);
1233 for (label_chain
= label_symbols_rootp
;
1235 label_chain
= label_chain
->lss_next
)
1237 if (space_chain
== label_chain
->lss_space
&& label_chain
->lss_label
)
1239 /* Remove the label from the chain and free its memory. */
1240 if (prev_label_chain
)
1241 prev_label_chain
->lss_next
= label_chain
->lss_next
;
1243 label_symbols_rootp
= label_chain
->lss_next
;
1248 prev_label_chain
= label_chain
;
1253 /* An HPPA-specific version of fix_new. This is required because the HPPA
1254 code needs to keep track of some extra stuff. Each call to fix_new_hppa
1255 results in the creation of an instance of an hppa_fix_struct. An
1256 hppa_fix_struct stores the extra information along with a pointer to the
1257 original fixS. This is attached to the original fixup via the
1258 tc_fix_data field. */
1261 fix_new_hppa (frag
, where
, size
, add_symbol
, offset
, exp
, pcrel
,
1262 r_type
, r_field
, r_format
, arg_reloc
, unwind_desc
)
1266 symbolS
*add_symbol
;
1270 bfd_reloc_code_real_type r_type
;
1278 struct hppa_fix_struct
*hppa_fix
= (struct hppa_fix_struct
*)
1279 obstack_alloc (¬es
, sizeof (struct hppa_fix_struct
));
1282 new_fix
= fix_new_exp (frag
, where
, size
, exp
, pcrel
, r_type
);
1284 new_fix
= fix_new (frag
, where
, size
, add_symbol
, offset
, pcrel
, r_type
);
1285 new_fix
->tc_fix_data
= hppa_fix
;
1286 hppa_fix
->fx_r_type
= r_type
;
1287 hppa_fix
->fx_r_field
= r_field
;
1288 hppa_fix
->fx_r_format
= r_format
;
1289 hppa_fix
->fx_arg_reloc
= arg_reloc
;
1291 bcopy (unwind_desc
, hppa_fix
->fx_unwind
, 8);
1295 /* Parse a .byte, .word, .long expression for the HPPA. Called by
1296 cons via the TC_PARSE_CONS_EXPRESSION macro. */
1299 parse_cons_expression_hppa (exp
)
1302 hppa_field_selector
= pa_chk_field_selector (&input_line_pointer
);
1306 /* This fix_new is called by cons via TC_CONS_FIX_NEW.
1307 hppa_field_selector is set by the parse_cons_expression_hppa. */
1310 cons_fix_new_hppa (frag
, where
, size
, exp
)
1316 unsigned int reloc_type
;
1318 if (is_DP_relative (*exp
))
1319 reloc_type
= R_HPPA_GOTOFF
;
1320 else if (is_complex (*exp
))
1321 reloc_type
= R_HPPA_COMPLEX
;
1323 reloc_type
= R_HPPA
;
1325 if (hppa_field_selector
!= e_psel
&& hppa_field_selector
!= e_fsel
)
1326 as_warn ("Invalid field selector. Assuming F%%.");
1328 fix_new_hppa (frag
, where
, size
,
1329 (symbolS
*) NULL
, (offsetT
) 0, exp
, 0, reloc_type
,
1330 hppa_field_selector
, 32, 0, (char *) 0);
1333 /* This function is called once, at assembler startup time. It should
1334 set up all the tables, etc. that the MD part of the assembler will need. */
1339 char *retval
= NULL
;
1343 last_call_info
= NULL
;
1344 call_info_root
= NULL
;
1348 op_hash
= hash_new ();
1349 if (op_hash
== NULL
)
1350 as_fatal ("Virtual memory exhausted");
1352 while (i
< NUMOPCODES
)
1354 const char *name
= pa_opcodes
[i
].name
;
1355 retval
= hash_insert (op_hash
, name
, &pa_opcodes
[i
]);
1356 if (retval
!= NULL
&& *retval
!= '\0')
1358 as_fatal ("Internal error: can't hash `%s': %s\n", name
, retval
);
1363 if ((pa_opcodes
[i
].match
& pa_opcodes
[i
].mask
)
1364 != pa_opcodes
[i
].match
)
1366 fprintf (stderr
, "internal error: losing opcode: `%s' \"%s\"\n",
1367 pa_opcodes
[i
].name
, pa_opcodes
[i
].args
);
1372 while (i
< NUMOPCODES
&& !strcmp (pa_opcodes
[i
].name
, name
));
1376 as_fatal ("Broken assembler. No assembly attempted.");
1379 /* Called at the end of assembling a source file. Nothing to do
1380 at this point on the PA. */
1388 /* Assemble a single instruction storing it into a frag. */
1395 /* The had better be something to assemble. */
1398 /* Assemble the instruction. Results are saved into "the_insn". */
1401 /* Get somewhere to put the assembled instrution. */
1404 /* Output the opcode. */
1405 md_number_to_chars (to
, the_insn
.opcode
, 4);
1407 /* If necessary output more stuff. */
1408 if (the_insn
.reloc
!= R_HPPA_NONE
)
1409 fix_new_hppa (frag_now
, (to
- frag_now
->fr_literal
), 4, NULL
,
1410 (offsetT
) 0, &the_insn
.exp
, the_insn
.pcrel
,
1411 the_insn
.reloc
, the_insn
.field_selector
,
1412 the_insn
.format
, the_insn
.arg_reloc
, NULL
);
1416 /* Do the real work for assembling a single instruction. Store results
1417 into the global "the_insn" variable.
1419 FIXME: Should define and use some functions/macros to handle
1420 various common insertions of information into the opcode. */
1426 char *error_message
= "";
1427 char *s
, c
, *argstart
, *name
, *save_s
;
1431 int reg
, s2
, s3
, m
, a
, uu
, cmpltr
, nullif
, flag
, sfu
, cond
;
1432 unsigned int im21
, im14
, im11
, im5
;
1433 unsigned long i
, opcode
;
1434 struct pa_opcode
*insn
;
1436 /* Skip to something interesting. */
1437 for (s
= str
; isupper (*s
) || islower (*s
) || (*s
>= '0' && *s
<= '3'); ++s
)
1456 as_bad ("Unknown opcode: `%s'", str
);
1462 /* Convert everything into lower case. */
1465 if (isupper (*save_s
))
1466 *save_s
= tolower (*save_s
);
1470 /* Look up the opcode in the has table. */
1471 if ((insn
= (struct pa_opcode
*) hash_find (op_hash
, str
)) == NULL
)
1473 as_bad ("Unknown opcode: `%s'", str
);
1482 /* Mark the location where arguments for the instruction start, then
1483 start processing them. */
1487 /* Do some initialization. */
1488 opcode
= insn
->match
;
1489 bzero (&the_insn
, sizeof (the_insn
));
1491 the_insn
.reloc
= R_HPPA_NONE
;
1493 /* Build the opcode, checking as we go to make
1494 sure that the operands match. */
1495 for (args
= insn
->args
;; ++args
)
1500 /* End of arguments. */
1516 /* These must match exactly. */
1525 /* Handle a 5 bit register or control register field at 10. */
1528 reg
= pa_parse_number (&s
, 0);
1529 if (reg
< 32 && reg
>= 0)
1531 opcode
|= reg
<< 21;
1536 /* Handle a 5 bit register field at 15. */
1538 reg
= pa_parse_number (&s
, 0);
1539 if (reg
< 32 && reg
>= 0)
1541 opcode
|= reg
<< 16;
1546 /* Handle a 5 bit register field at 31. */
1549 reg
= pa_parse_number (&s
, 0);
1550 if (reg
< 32 && reg
>= 0)
1557 /* Handle a 5 bit field length at 31. */
1559 pa_get_absolute_expression (s
);
1560 if (the_insn
.exp
.X_op
== O_constant
)
1562 reg
= the_insn
.exp
.X_add_number
;
1563 if (reg
<= 32 && reg
> 0)
1572 /* Handle a 5 bit immediate at 15. */
1574 pa_get_absolute_expression (s
);
1575 if (the_insn
.exp
.X_add_number
> 15)
1577 as_bad ("5 bit immediate > 15. Set to 15");
1578 the_insn
.exp
.X_add_number
= 15;
1580 else if (the_insn
.exp
.X_add_number
< -16)
1582 as_bad ("5 bit immediate < -16. Set to -16");
1583 the_insn
.exp
.X_add_number
= -16;
1586 low_sign_unext (evaluate_absolute (the_insn
.exp
,
1587 the_insn
.field_selector
),
1589 opcode
|= (im5
<< 16);
1593 /* Handle a 2 bit space identifier at 17. */
1595 s2
= pa_parse_number (&s
, 0);
1596 if (s2
< 4 && s2
>= 0)
1603 /* Handle a 3 bit space identifier at 18. */
1605 s3
= pa_parse_number (&s
, 0);
1606 if (s3
< 8 && s3
>= 0)
1608 dis_assemble_3 (s3
, &s3
);
1614 /* Handle a completer for an indexing load or store. */
1619 while (*s
== ',' && i
< 2)
1622 if (strncasecmp (s
, "sm", 2) == 0)
1629 else if (strncasecmp (s
, "m", 1) == 0)
1631 else if (strncasecmp (s
, "s", 1) == 0)
1634 as_bad ("Invalid Indexed Load Completer.");
1639 as_bad ("Invalid Indexed Load Completer Syntax.");
1640 while (*s
== ' ' || *s
== '\t')
1647 /* Handle a short load/store completer. */
1654 if (strncasecmp (s
, "ma", 2) == 0)
1659 else if (strncasecmp (s
, "mb", 2) == 0)
1665 as_bad ("Invalid Short Load/Store Completer.");
1668 while (*s
== ' ' || *s
== '\t')
1674 /* Handle a stbys completer. */
1679 while (*s
== ',' && i
< 2)
1682 if (strncasecmp (s
, "m", 1) == 0)
1684 else if (strncasecmp (s
, "b", 1) == 0)
1686 else if (strncasecmp (s
, "e", 1) == 0)
1689 as_bad ("Invalid Store Bytes Short Completer");
1694 as_bad ("Invalid Store Bytes Short Completer");
1695 while (*s
== ' ' || *s
== '\t')
1701 /* Handle a non-negated compare/stubtract condition. */
1703 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
1706 as_bad ("Invalid Compare/Subtract Condition: %c", *s
);
1709 opcode
|= cmpltr
<< 13;
1712 /* Handle a negated or non-negated compare/subtract condition. */
1715 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 1);
1719 cmpltr
= pa_parse_neg_cmpsub_cmpltr (&s
, 1);
1722 as_bad ("Invalid Compare/Subtract Condition.");
1727 /* Negated condition requires an opcode change. */
1731 opcode
|= cmpltr
<< 13;
1734 /* Handle a negated or non-negated add condition. */
1737 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
, 1);
1741 cmpltr
= pa_parse_neg_add_cmpltr (&s
, 1);
1744 as_bad ("Invalid Compare/Subtract Condition");
1749 /* Negated condition requires an opcode change. */
1753 opcode
|= cmpltr
<< 13;
1756 /* Handle a compare/subtract condition. */
1763 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
, 0);
1768 cmpltr
= pa_parse_neg_cmpsub_cmpltr (&s
, 0);
1771 as_bad ("Invalid Compare/Subtract Condition");
1775 opcode
|= cmpltr
<< 13;
1776 opcode
|= flag
<< 12;
1779 /* Handle a non-negated add condition. */
1788 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
1792 if (strcmp (name
, "=") == 0)
1794 else if (strcmp (name
, "<") == 0)
1796 else if (strcmp (name
, "<=") == 0)
1798 else if (strcasecmp (name
, "nuv") == 0)
1800 else if (strcasecmp (name
, "znv") == 0)
1802 else if (strcasecmp (name
, "sv") == 0)
1804 else if (strcasecmp (name
, "od") == 0)
1806 else if (strcasecmp (name
, "n") == 0)
1808 else if (strcasecmp (name
, "tr") == 0)
1813 else if (strcasecmp (name
, "<>") == 0)
1818 else if (strcasecmp (name
, ">=") == 0)
1823 else if (strcasecmp (name
, ">") == 0)
1828 else if (strcasecmp (name
, "uv") == 0)
1833 else if (strcasecmp (name
, "vnz") == 0)
1838 else if (strcasecmp (name
, "nsv") == 0)
1843 else if (strcasecmp (name
, "ev") == 0)
1849 as_bad ("Invalid Add Condition: %s", name
);
1852 nullif
= pa_parse_nullif (&s
);
1853 opcode
|= nullif
<< 1;
1854 opcode
|= cmpltr
<< 13;
1855 opcode
|= flag
<< 12;
1858 /* Handle a logical instruction condition. */
1866 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
1870 if (strcmp (name
, "=") == 0)
1872 else if (strcmp (name
, "<") == 0)
1874 else if (strcmp (name
, "<=") == 0)
1876 else if (strcasecmp (name
, "od") == 0)
1878 else if (strcasecmp (name
, "tr") == 0)
1883 else if (strcmp (name
, "<>") == 0)
1888 else if (strcmp (name
, ">=") == 0)
1893 else if (strcmp (name
, ">") == 0)
1898 else if (strcasecmp (name
, "ev") == 0)
1904 as_bad ("Invalid Logical Instruction Condition.");
1907 opcode
|= cmpltr
<< 13;
1908 opcode
|= flag
<< 12;
1911 /* Handle a unit instruction condition. */
1918 if (strncasecmp (s
, "sbz", 3) == 0)
1923 else if (strncasecmp (s
, "shz", 3) == 0)
1928 else if (strncasecmp (s
, "sdc", 3) == 0)
1933 else if (strncasecmp (s
, "sbc", 3) == 0)
1938 else if (strncasecmp (s
, "shc", 3) == 0)
1943 else if (strncasecmp (s
, "tr", 2) == 0)
1949 else if (strncasecmp (s
, "nbz", 3) == 0)
1955 else if (strncasecmp (s
, "nhz", 3) == 0)
1961 else if (strncasecmp (s
, "ndc", 3) == 0)
1967 else if (strncasecmp (s
, "nbc", 3) == 0)
1973 else if (strncasecmp (s
, "nhc", 3) == 0)
1980 as_bad ("Invalid Logical Instruction Condition.");
1982 opcode
|= cmpltr
<< 13;
1983 opcode
|= flag
<< 12;
1986 /* Handle a shift/extract/deposit condition. */
1994 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
1998 if (strcmp (name
, "=") == 0)
2000 else if (strcmp (name
, "<") == 0)
2002 else if (strcasecmp (name
, "od") == 0)
2004 else if (strcasecmp (name
, "tr") == 0)
2006 else if (strcmp (name
, "<>") == 0)
2008 else if (strcmp (name
, ">=") == 0)
2010 else if (strcasecmp (name
, "ev") == 0)
2012 /* Handle movb,n. Put things back the way they were.
2013 This includes moving s back to where it started. */
2014 else if (strcasecmp (name
, "n") == 0 && *args
== '|')
2021 as_bad ("Invalid Shift/Extract/Deposit Condition.");
2024 opcode
|= cmpltr
<< 13;
2027 /* Handle bvb and bb conditions. */
2033 if (strncmp (s
, "<", 1) == 0)
2038 else if (strncmp (s
, ">=", 2) == 0)
2044 as_bad ("Invalid Bit Branch Condition: %c", *s
);
2046 opcode
|= cmpltr
<< 13;
2049 /* Handle a 5 bit immediate at 31. */
2052 low_sign_unext (evaluate_absolute (the_insn
.exp
,
2053 the_insn
.field_selector
),
2059 /* Handle an unsigned 5 bit immediate at 31. */
2062 im5
= evaluate_absolute (the_insn
.exp
, the_insn
.field_selector
);
2065 as_bad ("Operand out of range. Was: %d. Should be [0..31].",
2073 /* Handle an unsigned 5 bit immediate at 15. */
2076 im5
= evaluate_absolute (the_insn
.exp
, the_insn
.field_selector
);
2079 as_bad ("Operand out of range. Was: %d. Should be [0..31].",
2083 opcode
|= im5
<< 16;
2087 /* Handle a 11 bit immediate at 31. */
2089 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2091 if (the_insn
.exp
.X_op
== O_constant
)
2093 low_sign_unext (evaluate_absolute (the_insn
.exp
,
2094 the_insn
.field_selector
),
2100 if (is_DP_relative (the_insn
.exp
))
2101 the_insn
.reloc
= R_HPPA_GOTOFF
;
2102 else if (is_PC_relative (the_insn
.exp
))
2103 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2104 else if (is_complex (the_insn
.exp
))
2105 the_insn
.reloc
= R_HPPA_COMPLEX
;
2107 the_insn
.reloc
= R_HPPA
;
2108 the_insn
.format
= 11;
2113 /* Handle a 14 bit immediate at 31. */
2115 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2117 if (the_insn
.exp
.X_op
== O_constant
)
2119 low_sign_unext (evaluate_absolute (the_insn
.exp
,
2120 the_insn
.field_selector
),
2122 if (the_insn
.field_selector
== e_rsel
)
2123 opcode
|= (im14
& 0xfff);
2129 if (is_DP_relative (the_insn
.exp
))
2130 the_insn
.reloc
= R_HPPA_GOTOFF
;
2131 else if (is_PC_relative (the_insn
.exp
))
2132 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2133 else if (is_complex (the_insn
.exp
))
2134 the_insn
.reloc
= R_HPPA_COMPLEX
;
2136 the_insn
.reloc
= R_HPPA
;
2137 the_insn
.format
= 14;
2142 /* Handle a 21 bit immediate at 31. */
2144 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2146 if (the_insn
.exp
.X_op
== O_constant
)
2148 dis_assemble_21 (evaluate_absolute (the_insn
.exp
,
2149 the_insn
.field_selector
),
2155 if (is_DP_relative (the_insn
.exp
))
2156 the_insn
.reloc
= R_HPPA_GOTOFF
;
2157 else if (is_PC_relative (the_insn
.exp
))
2158 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2159 else if (is_complex (the_insn
.exp
))
2160 the_insn
.reloc
= R_HPPA_COMPLEX
;
2162 the_insn
.reloc
= R_HPPA
;
2163 the_insn
.format
= 21;
2168 /* Handle a nullification completer for branch instructions. */
2170 nullif
= pa_parse_nullif (&s
);
2171 opcode
|= nullif
<< 1;
2174 /* Handle a 12 bit branch displacement. */
2176 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2179 if (!strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
), "L0\001"))
2181 unsigned int w1
, w
, result
;
2183 sign_unext ((the_insn
.exp
.X_add_number
- 8) >> 2, 12,
2185 dis_assemble_12 (result
, &w1
, &w
);
2186 opcode
|= ((w1
<< 2) | w
);
2190 if (is_complex (the_insn
.exp
))
2191 the_insn
.reloc
= R_HPPA_COMPLEX_PCREL_CALL
;
2193 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2194 the_insn
.format
= 12;
2195 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2196 bzero (&last_call_desc
, sizeof (struct call_desc
));
2201 /* Handle a 17 bit branch displacement. */
2203 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2206 if (the_insn
.exp
.X_add_symbol
)
2208 if (!strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2211 unsigned int w2
, w1
, w
, result
;
2213 sign_unext ((the_insn
.exp
.X_add_number
- 8) >> 2, 17,
2215 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2216 opcode
|= ((w2
<< 2) | (w1
<< 16) | w
);
2220 if (is_complex (the_insn
.exp
))
2221 the_insn
.reloc
= R_HPPA_COMPLEX_PCREL_CALL
;
2223 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
2224 the_insn
.format
= 17;
2225 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
2226 bzero (&last_call_desc
, sizeof (struct call_desc
));
2231 unsigned int w2
, w1
, w
, result
;
2233 sign_unext (the_insn
.exp
.X_add_number
>> 2, 17, &result
);
2234 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2235 opcode
|= ((w2
<< 2) | (w1
<< 16) | w
);
2240 /* Handle an absolute 17 bit branch target. */
2242 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2245 if (the_insn
.exp
.X_add_symbol
)
2247 if (!strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
2250 unsigned int w2
, w1
, w
, result
;
2252 sign_unext ((the_insn
.exp
.X_add_number
- 8) >> 2, 17,
2254 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2255 opcode
|= ((w2
<< 2) | (w1
<< 16) | w
);
2259 if (is_complex (the_insn
.exp
))
2260 the_insn
.reloc
= R_HPPA_COMPLEX_ABS_CALL
;
2262 the_insn
.reloc
= R_HPPA_ABS_CALL
;
2263 the_insn
.format
= 17;
2268 unsigned int w2
, w1
, w
, result
;
2270 sign_unext (the_insn
.exp
.X_add_number
>> 2, 17, &result
);
2271 dis_assemble_17 (result
, &w1
, &w2
, &w
);
2272 opcode
|= ((w2
<< 2) | (w1
<< 16) | w
);
2277 /* Handle a 5 bit shift count at 26. */
2280 if (the_insn
.exp
.X_op
== O_constant
)
2281 opcode
|= (((31 - the_insn
.exp
.X_add_number
) & 0x1f) << 5);
2285 /* Handle a 5 bit bit position at 26. */
2288 if (the_insn
.exp
.X_op
== O_constant
)
2289 opcode
|= (the_insn
.exp
.X_add_number
& 0x1f) << 5;
2293 /* Handle a 5 bit immediate at 10. */
2296 im5
= evaluate_absolute (the_insn
.exp
, the_insn
.field_selector
);
2299 as_bad ("Operand out of range. Was: %d. Should be [0..31].",
2303 opcode
|= im5
<< 21;
2307 /* Handle a 13 bit immediate at 18. */
2309 pa_get_absolute_expression (s
);
2310 if (the_insn
.exp
.X_op
== O_constant
)
2311 opcode
|= (the_insn
.exp
.X_add_number
& 0x1fff) << 13;
2315 /* Handle a system control completer. */
2317 if (*s
== ',' && (*(s
+ 1) == 'm' || *(s
+ 1) == 'M'))
2326 while (*s
== ' ' || *s
== '\t')
2330 /* Handle a 26 bit immediate at 31. */
2332 the_insn
.field_selector
= pa_chk_field_selector (&s
);
2334 if (the_insn
.exp
.X_op
== O_constant
)
2336 opcode
|= ((evaluate_absolute (the_insn
.exp
,
2337 the_insn
.field_selector
)
2341 as_bad ("Invalid DIAG operand");
2345 /* Handle a 3 bit SFU identifier at 25. */
2347 sfu
= pa_parse_number (&s
, 0);
2348 if ((sfu
> 7) || (sfu
< 0))
2349 as_bad ("Invalid SFU identifier: %02x", sfu
);
2350 opcode
|= (sfu
& 7) << 6;
2353 /* We don't support any of these. FIXME. */
2360 /* Handle a source FP operand format completer. */
2362 flag
= pa_parse_fp_format (&s
);
2363 opcode
|= (int) flag
<< 11;
2364 the_insn
.fpof1
= flag
;
2367 /* Handle a destination FP operand format completer. */
2370 /* pa_parse_format needs the ',' prefix. */
2372 flag
= pa_parse_fp_format (&s
);
2373 opcode
|= (int) flag
<< 13;
2374 the_insn
.fpof2
= flag
;
2377 /* Handle FP compare conditions. */
2379 cond
= pa_parse_fp_cmp_cond (&s
);
2383 /* Handle L/R register halves like 't'. */
2386 struct pa_89_fp_reg_struct result
;
2388 pa_parse_number (&s
, &result
);
2389 if (result
.number_part
< 32 && result
.number_part
>= 0)
2391 opcode
|= (result
.number_part
& 0x1f);
2393 /* 0x30 opcodes are FP arithmetic operation opcodes
2394 and need to be turned into 0x38 opcodes. This
2395 is not necessary for loads/stores. */
2396 if (need_89_opcode (&the_insn
, &result
))
2398 if ((opcode
& 0xfc000000) == 0x30000000)
2400 opcode
|= (result
.l_r_select
& 1) << 6;
2405 opcode
|= (result
.l_r_select
& 1) << 6;
2413 /* Handle L/R register halves like 'b'. */
2416 struct pa_89_fp_reg_struct result
;
2418 pa_parse_number (&s
, &result
);
2419 if (result
.number_part
< 32 && result
.number_part
>= 0)
2421 opcode
|= (result
.number_part
& 0x1f) << 21;
2422 if (need_89_opcode (&the_insn
, &result
))
2424 opcode
|= (result
.l_r_select
& 1) << 7;
2432 /* Handle L/R register halves like 'x'. */
2435 struct pa_89_fp_reg_struct result
;
2437 pa_parse_number (&s
, &result
);
2438 if (result
.number_part
< 32 && result
.number_part
>= 0)
2440 opcode
|= (result
.number_part
& 0x1f) << 16;
2441 if (need_89_opcode (&the_insn
, &result
))
2443 opcode
|= (result
.l_r_select
& 1) << 12;
2451 /* Handle a 5 bit register field at 10. */
2454 struct pa_89_fp_reg_struct result
;
2457 status
= pa_parse_number (&s
, &result
);
2458 if (result
.number_part
< 32 && result
.number_part
>= 0)
2460 if (the_insn
.fpof1
== SGL
)
2462 result
.number_part
&= 0xF;
2463 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2465 opcode
|= result
.number_part
<< 21;
2471 /* Handle a 5 bit register field at 15. */
2474 struct pa_89_fp_reg_struct result
;
2477 status
= pa_parse_number (&s
, &result
);
2478 if (result
.number_part
< 32 && result
.number_part
>= 0)
2480 if (the_insn
.fpof1
== SGL
)
2482 result
.number_part
&= 0xF;
2483 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2485 opcode
|= result
.number_part
<< 16;
2491 /* Handle a 5 bit register field at 31. */
2494 struct pa_89_fp_reg_struct result
;
2497 status
= pa_parse_number (&s
, &result
);
2498 if (result
.number_part
< 32 && result
.number_part
>= 0)
2500 if (the_insn
.fpof1
== SGL
)
2502 result
.number_part
&= 0xF;
2503 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2505 opcode
|= result
.number_part
;
2511 /* Handle a 5 bit register field at 20. */
2514 struct pa_89_fp_reg_struct result
;
2517 status
= pa_parse_number (&s
, &result
);
2518 if (result
.number_part
< 32 && result
.number_part
>= 0)
2520 if (the_insn
.fpof1
== SGL
)
2522 result
.number_part
&= 0xF;
2523 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2525 opcode
|= result
.number_part
<< 11;
2531 /* Handle a 5 bit register field at 25. */
2534 struct pa_89_fp_reg_struct result
;
2537 status
= pa_parse_number (&s
, &result
);
2538 if (result
.number_part
< 32 && result
.number_part
>= 0)
2540 if (the_insn
.fpof1
== SGL
)
2542 result
.number_part
&= 0xF;
2543 result
.number_part
|= (result
.l_r_select
& 1) << 4;
2545 opcode
|= result
.number_part
<< 6;
2551 /* Handle a floating point operand format at 26.
2552 Only allows single and double precision. */
2554 flag
= pa_parse_fp_format (&s
);
2560 the_insn
.fpof1
= flag
;
2566 as_bad ("Invalid Floating Point Operand Format.");
2576 /* Check if the args matched. */
2579 if (&insn
[1] - pa_opcodes
< NUMOPCODES
2580 && !strcmp (insn
->name
, insn
[1].name
))
2588 as_bad ("Invalid operands %s", error_message
);
2595 the_insn
.opcode
= opcode
;
2599 /* Turn a string in input_line_pointer into a floating point constant of type
2600 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
2601 emitted is stored in *sizeP . An error message or NULL is returned. */
2603 #define MAX_LITTLENUMS 6
2606 md_atof (type
, litP
, sizeP
)
2612 LITTLENUM_TYPE words
[MAX_LITTLENUMS
];
2613 LITTLENUM_TYPE
*wordP
;
2645 return "Bad call to MD_ATOF()";
2647 t
= atof_ieee (input_line_pointer
, type
, words
);
2649 input_line_pointer
= t
;
2650 *sizeP
= prec
* sizeof (LITTLENUM_TYPE
);
2651 for (wordP
= words
; prec
--;)
2653 md_number_to_chars (litP
, (valueT
) (*wordP
++), sizeof (LITTLENUM_TYPE
));
2654 litP
+= sizeof (LITTLENUM_TYPE
);
2659 /* Write out big-endian. */
2662 md_number_to_chars (buf
, val
, n
)
2684 /* Translate internal representation of relocation info to BFD target
2685 format. FIXME: This code is not appropriate for SOM. */
2689 tc_gen_reloc (section
, fixp
)
2694 struct hppa_fix_struct
*hppa_fixp
= fixp
->tc_fix_data
;
2695 bfd_reloc_code_real_type code
;
2696 static int unwind_reloc_fixp_cnt
= 0;
2697 static arelent
*unwind_reloc_entryP
= NULL
;
2698 static arelent
*no_relocs
= NULL
;
2700 bfd_reloc_code_real_type
**codes
;
2704 if (fixp
->fx_addsy
== 0)
2706 assert (hppa_fixp
!= 0);
2707 assert (section
!= 0);
2709 /* Unwind section relocations are handled in a special way.
2710 The relocations for the .unwind section are originally
2711 built in the usual way. That is, for each unwind table
2712 entry there are two relocations: one for the beginning of
2713 the function and one for the end.
2715 The first time we enter this function we create a
2716 relocation of the type R_HPPA_UNWIND_ENTRIES. The addend
2717 of the relocation is initialized to 0. Each additional
2718 pair of times this function is called for the unwind
2719 section represents an additional unwind table entry. Thus,
2720 the addend of the relocation should end up to be the number
2721 of unwind table entries. */
2722 if (strcmp (UNWIND_SECTION_NAME
, section
->name
) == 0)
2724 if (unwind_reloc_entryP
== NULL
)
2726 reloc
= (arelent
*) bfd_alloc_by_size_t (stdoutput
,
2728 assert (reloc
!= 0);
2729 unwind_reloc_entryP
= reloc
;
2730 unwind_reloc_fixp_cnt
++;
2731 unwind_reloc_entryP
->address
2732 = fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2733 /* A pointer to any function will do. We only
2734 need one to tell us what section the unwind
2735 relocations are for. */
2736 unwind_reloc_entryP
->sym_ptr_ptr
= &fixp
->fx_addsy
->bsym
;
2737 hppa_fixp
->fx_r_type
= code
= R_HPPA_UNWIND_ENTRIES
;
2738 fixp
->fx_r_type
= R_HPPA_UNWIND
;
2739 unwind_reloc_entryP
->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
2740 unwind_reloc_entryP
->addend
= unwind_reloc_fixp_cnt
/ 2;
2741 relocs
= (arelent
**) bfd_alloc_by_size_t (stdoutput
,
2742 sizeof (arelent
*) * 2);
2743 assert (relocs
!= 0);
2744 relocs
[0] = unwind_reloc_entryP
;
2748 unwind_reloc_fixp_cnt
++;
2749 unwind_reloc_entryP
->addend
= unwind_reloc_fixp_cnt
/ 2;
2754 reloc
= (arelent
*) bfd_alloc_by_size_t (stdoutput
, sizeof (arelent
));
2755 assert (reloc
!= 0);
2757 reloc
->sym_ptr_ptr
= &fixp
->fx_addsy
->bsym
;
2758 codes
= hppa_gen_reloc_type (stdoutput
,
2760 hppa_fixp
->fx_r_format
,
2761 hppa_fixp
->fx_r_field
);
2763 for (n_relocs
= 0; codes
[n_relocs
]; n_relocs
++)
2766 relocs
= (arelent
**)
2767 bfd_alloc_by_size_t (stdoutput
, sizeof (arelent
*) * n_relocs
+ 1);
2768 assert (relocs
!= 0);
2770 reloc
= (arelent
*) bfd_alloc_by_size_t (stdoutput
,
2771 sizeof (arelent
) * n_relocs
);
2773 assert (reloc
!= 0);
2775 for (i
= 0; i
< n_relocs
; i
++)
2776 relocs
[i
] = &reloc
[i
];
2778 relocs
[n_relocs
] = NULL
;
2780 switch (fixp
->fx_r_type
)
2782 case R_HPPA_COMPLEX
:
2783 case R_HPPA_COMPLEX_PCREL_CALL
:
2784 case R_HPPA_COMPLEX_ABS_CALL
:
2785 assert (n_relocs
== 5);
2787 for (i
= 0; i
< n_relocs
; i
++)
2789 reloc
[i
].sym_ptr_ptr
= NULL
;
2790 reloc
[i
].address
= 0;
2791 reloc
[i
].addend
= 0;
2792 reloc
[i
].howto
= bfd_reloc_type_lookup (stdoutput
, *codes
[i
]);
2793 assert (reloc
[i
].howto
&& *codes
[i
] == reloc
[i
].howto
->type
);
2796 reloc
[0].sym_ptr_ptr
= &fixp
->fx_addsy
->bsym
;
2797 reloc
[1].sym_ptr_ptr
= &fixp
->fx_subsy
->bsym
;
2798 reloc
[4].address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2800 if (fixp
->fx_r_type
== R_HPPA_COMPLEX
)
2801 reloc
[3].addend
= fixp
->fx_addnumber
;
2802 else if (fixp
->fx_r_type
== R_HPPA_COMPLEX_PCREL_CALL
||
2803 fixp
->fx_r_type
== R_HPPA_COMPLEX_ABS_CALL
)
2804 reloc
[1].addend
= fixp
->fx_addnumber
;
2809 assert (n_relocs
== 1);
2813 reloc
->sym_ptr_ptr
= &fixp
->fx_addsy
->bsym
;
2814 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
2815 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2816 reloc
->addend
= 0; /* default */
2818 assert (reloc
->howto
&& code
== reloc
->howto
->type
);
2820 /* Now, do any processing that is dependent on the relocation type. */
2823 case R_HPPA_PLABEL_32
:
2824 case R_HPPA_PLABEL_11
:
2825 case R_HPPA_PLABEL_14
:
2826 case R_HPPA_PLABEL_L21
:
2827 case R_HPPA_PLABEL_R11
:
2828 case R_HPPA_PLABEL_R14
:
2829 /* For plabel relocations, the addend of the
2830 relocation should be either 0 (no static link) or 2
2831 (static link required).
2833 FIXME: assume that fx_addnumber contains this
2835 reloc
->addend
= fixp
->fx_addnumber
;
2838 case R_HPPA_ABS_CALL_11
:
2839 case R_HPPA_ABS_CALL_14
:
2840 case R_HPPA_ABS_CALL_17
:
2841 case R_HPPA_ABS_CALL_L21
:
2842 case R_HPPA_ABS_CALL_R11
:
2843 case R_HPPA_ABS_CALL_R14
:
2844 case R_HPPA_ABS_CALL_R17
:
2845 case R_HPPA_ABS_CALL_LS21
:
2846 case R_HPPA_ABS_CALL_RS11
:
2847 case R_HPPA_ABS_CALL_RS14
:
2848 case R_HPPA_ABS_CALL_RS17
:
2849 case R_HPPA_ABS_CALL_LD21
:
2850 case R_HPPA_ABS_CALL_RD11
:
2851 case R_HPPA_ABS_CALL_RD14
:
2852 case R_HPPA_ABS_CALL_RD17
:
2853 case R_HPPA_ABS_CALL_LR21
:
2854 case R_HPPA_ABS_CALL_RR14
:
2855 case R_HPPA_ABS_CALL_RR17
:
2857 case R_HPPA_PCREL_CALL_11
:
2858 case R_HPPA_PCREL_CALL_14
:
2859 case R_HPPA_PCREL_CALL_17
:
2860 case R_HPPA_PCREL_CALL_L21
:
2861 case R_HPPA_PCREL_CALL_R11
:
2862 case R_HPPA_PCREL_CALL_R14
:
2863 case R_HPPA_PCREL_CALL_R17
:
2864 case R_HPPA_PCREL_CALL_LS21
:
2865 case R_HPPA_PCREL_CALL_RS11
:
2866 case R_HPPA_PCREL_CALL_RS14
:
2867 case R_HPPA_PCREL_CALL_RS17
:
2868 case R_HPPA_PCREL_CALL_LD21
:
2869 case R_HPPA_PCREL_CALL_RD11
:
2870 case R_HPPA_PCREL_CALL_RD14
:
2871 case R_HPPA_PCREL_CALL_RD17
:
2872 case R_HPPA_PCREL_CALL_LR21
:
2873 case R_HPPA_PCREL_CALL_RR14
:
2874 case R_HPPA_PCREL_CALL_RR17
:
2875 /* The constant is stored in the instruction. */
2876 reloc
->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
2879 reloc
->addend
= fixp
->fx_addnumber
;
2889 /* Translate internal representation of relocation info to BFD target
2890 format. FIXME: This code is not appropriate for SOM. */
2892 tc_gen_reloc (section
, fixp
)
2896 static arelent
*no_relocs
= NULL
;
2902 /* Process any machine dependent frag types. */
2905 md_convert_frag (abfd
, sec
, fragP
)
2907 register asection
*sec
;
2908 register fragS
*fragP
;
2910 unsigned int address
;
2912 if (fragP
->fr_type
== rs_machine_dependent
)
2914 switch ((int) fragP
->fr_subtype
)
2917 fragP
->fr_type
= rs_fill
;
2918 know (fragP
->fr_var
== 1);
2919 know (fragP
->fr_next
);
2920 address
= fragP
->fr_address
+ fragP
->fr_fix
;
2921 if (address
% fragP
->fr_offset
)
2924 fragP
->fr_next
->fr_address
2929 fragP
->fr_offset
= 0;
2935 /* Round up a section size to the appropriate boundary. */
2938 md_section_align (segment
, size
)
2942 int align
= bfd_get_section_alignment (stdoutput
, segment
);
2943 int align2
= (1 << align
) - 1;
2945 return (size
+ align2
) & ~align2
;
2949 /* Create a short jump from FROM_ADDR to TO_ADDR. Not used on the PA. */
2951 md_create_short_jump (ptr
, from_addr
, to_addr
, frag
, to_symbol
)
2953 addressT from_addr
, to_addr
;
2957 fprintf (stderr
, "pa_create_short_jmp\n");
2961 /* Create a long jump from FROM_ADDR to TO_ADDR. Not used on the PA. */
2963 md_create_long_jump (ptr
, from_addr
, to_addr
, frag
, to_symbol
)
2965 addressT from_addr
, to_addr
;
2969 fprintf (stderr
, "pa_create_long_jump\n");
2973 /* Return the approximate size of a frag before relaxation has occurred. */
2975 md_estimate_size_before_relax (fragP
, segment
)
2976 register fragS
*fragP
;
2983 while ((fragP
->fr_fix
+ size
) % fragP
->fr_offset
)
2989 /* Parse machine dependent options. There are none on the PA. */
2991 md_parse_option (argP
, cntP
, vecP
)
2999 /* We have no need to default values of symbols. */
3002 md_undefined_symbol (name
)
3008 /* Parse an operand that is machine-specific.
3009 We just return without modifying the expression as we have nothing
3013 md_operand (expressionP
)
3014 expressionS
*expressionP
;
3018 /* Helper function for md_apply_fix. Actually determine if the fix
3019 can be applied, and if so, apply it.
3021 If a fix is applied, then set fx_addsy to NULL which indicates
3022 the fix was applied and need not be emitted into the object file. */
3025 md_apply_fix_1 (fixP
, val
)
3029 char *buf
= fixP
->fx_where
+ fixP
->fx_frag
->fr_literal
;
3030 struct hppa_fix_struct
*hppa_fixP
= fixP
->tc_fix_data
;
3031 long new_val
, result
;
3032 unsigned int w1
, w2
, w
;
3034 /* There should have been an HPPA specific fixup associated
3035 with the GAS fixup. */
3038 unsigned long buf_wd
= bfd_get_32 (stdoutput
, buf
);
3039 unsigned char fmt
= bfd_hppa_insn2fmt (buf_wd
);
3041 /* Sanity check the fixup type. */
3042 /* Is this really necessary? */
3043 if (fixP
->fx_r_type
== R_HPPA_NONE
)
3046 /* Remember this value for emit_reloc. FIXME, is this braindamage
3047 documented anywhere!?! */
3048 fixP
->fx_addnumber
= val
;
3050 /* Check if this is an undefined symbol. No relocation can
3051 possibly be performed in this case. */
3052 if ((fixP
->fx_addsy
&& fixP
->fx_addsy
->bsym
->section
== &bfd_und_section
)
3054 && fixP
->fx_subsy
->bsym
->section
== &bfd_und_section
))
3059 /* Handle all opcodes with the 'j' operand type. */
3061 new_val
= hppa_field_adjust (val
, 0, hppa_fixP
->fx_r_field
);
3063 /* Mask off 14 bits to be changed. */
3064 bfd_put_32 (stdoutput
,
3065 bfd_get_32 (stdoutput
, buf
) & 0xffffc000,
3067 low_sign_unext (new_val
, 14, &result
);
3070 /* Handle all opcodes with the 'k' operand type. */
3072 new_val
= hppa_field_adjust (val
, 0, hppa_fixP
->fx_r_field
);
3074 /* Mask off 21 bits to be changed. */
3075 bfd_put_32 (stdoutput
,
3076 bfd_get_32 (stdoutput
, buf
) & 0xffe00000,
3078 dis_assemble_21 (new_val
, &result
);
3081 /* Handle all the opcodes with the 'i' operand type. */
3083 new_val
= hppa_field_adjust (val
, 0, hppa_fixP
->fx_r_field
);
3085 /* Mask off 11 bits to be changed. */
3086 bfd_put_32 (stdoutput
,
3087 bfd_get_32 (stdoutput
, buf
) & 0xffff800,
3089 low_sign_unext (new_val
, 11, &result
);
3092 /* Handle all the opcodes with the 'w' operand type. */
3094 new_val
= hppa_field_adjust (val
, 0, hppa_fixP
->fx_r_field
);
3096 /* Mask off 11 bits to be changed. */
3097 sign_unext ((new_val
- 8) >> 2, 12, &result
);
3098 bfd_put_32 (stdoutput
,
3099 bfd_get_32 (stdoutput
, buf
) & 0xffffe002,
3102 dis_assemble_12 (result
, &w1
, &w
);
3103 result
= ((w1
<< 2) | w
);
3104 fixP
->fx_addsy
= NULL
;
3107 #define too_far(VAL, NUM_BITS) \
3108 (((int)(VAL) > (1 << (NUM_BITS)) - 1) || ((int)(VAL) < (-1 << (NUM_BITS))))
3110 #define stub_needed(CALLER, CALLEE) \
3111 ((CALLEE) && (CALLER) && ((CALLEE) != (CALLER)))
3113 /* Handle some of the opcodes with the 'W' operand type. */
3115 /* If a long-call stub or argument relocation stub is
3116 needed, then we can not apply this relocation, instead
3117 the linker must handle it. */
3118 if (too_far (val
, 18)
3119 || stub_needed (((obj_symbol_type
*)
3120 fixP
->fx_addsy
->bsym
)->tc_data
.hppa_arg_reloc
,
3121 hppa_fixP
->fx_arg_reloc
))
3124 /* No stubs were needed, we can perform this relocation. */
3125 new_val
= hppa_field_adjust (val
, 0, hppa_fixP
->fx_r_field
);
3127 /* Mask off 17 bits to be changed. */
3128 bfd_put_32 (stdoutput
,
3129 bfd_get_32 (stdoutput
, buf
) & 0xffe0e002,
3131 sign_unext ((new_val
- 8) >> 2, 17, &result
);
3132 dis_assemble_17 (result
, &w1
, &w2
, &w
);
3133 result
= ((w2
<< 2) | (w1
<< 16) | w
);
3134 fixP
->fx_addsy
= NULL
;
3142 if (hppa_fixP
->fx_r_type
== R_HPPA_UNWIND_ENTRY
3143 || hppa_fixP
->fx_r_type
== R_HPPA_UNWIND_ENTRIES
)
3144 result
= fixP
->fx_addnumber
;
3149 fixP
->fx_addnumber
= fixP
->fx_offset
;
3150 bfd_put_32 (stdoutput
, 0, buf
);
3159 as_bad ("bad relocation type/fmt: 0x%02x/0x%02x",
3160 fixP
->fx_r_type
, fmt
);
3164 /* Insert the relocation. */
3165 buf
[0] |= (result
& 0xff000000) >> 24;
3166 buf
[1] |= (result
& 0x00ff0000) >> 16;
3167 buf
[2] |= (result
& 0x0000ff00) >> 8;
3168 buf
[3] |= result
& 0x000000ff;
3171 printf ("no hppa_fixup entry for this fixup (fixP = 0x%x, type = 0x%x)\n",
3172 (unsigned int) fixP
, fixP
->fx_r_type
);
3175 /* Apply a fix into a frag's data (if possible). */
3178 md_apply_fix (fixP
, valp
)
3182 md_apply_fix_1 (fixP
, (long) *valp
);
3186 /* Exactly what point is a PC-relative offset relative TO?
3187 On the PA, they're relative to the address of the offset. */
3190 md_pcrel_from (fixP
)
3193 return fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
3196 /* Return nonzero if the input line pointer is at the end of
3200 is_end_of_statement ()
3202 return ((*input_line_pointer
== '\n')
3203 || (*input_line_pointer
== ';')
3204 || (*input_line_pointer
== '!'));
3207 /* Read a number from S. The number might come in one of many forms,
3208 the most common will be a hex or decimal constant, but it could be
3209 a pre-defined register (Yuk!), or an absolute symbol.
3211 Return a number or -1 for failure.
3213 When parsing PA-89 FP register numbers RESULT will be
3214 the address of a structure to return information about
3215 L/R half of FP registers, store results there as appropriate.
3217 pa_parse_number can not handle negative constants and will fail
3218 horribly if it is passed such a constant. */
3221 pa_parse_number (s
, result
)
3223 struct pa_89_fp_reg_struct
*result
;
3232 /* Skip whitespace before the number. */
3233 while (*p
== ' ' || *p
== '\t')
3236 /* Store info in RESULT if requested by caller. */
3239 result
->number_part
= -1;
3240 result
->l_r_select
= -1;
3246 /* Looks like a number. */
3249 if (*p
== '0' && (*(p
+ 1) == 'x' || *(p
+ 1) == 'X'))
3251 /* The number is specified in hex. */
3253 while (isdigit (*p
) || ((*p
>= 'a') && (*p
<= 'f'))
3254 || ((*p
>= 'A') && (*p
<= 'F')))
3257 num
= num
* 16 + *p
- '0';
3258 else if (*p
>= 'a' && *p
<= 'f')
3259 num
= num
* 16 + *p
- 'a' + 10;
3261 num
= num
* 16 + *p
- 'A' + 10;
3267 /* The number is specified in decimal. */
3268 while (isdigit (*p
))
3270 num
= num
* 10 + *p
- '0';
3275 /* Store info in RESULT if requested by the caller. */
3278 result
->number_part
= num
;
3280 if (IS_R_SELECT (p
))
3282 result
->l_r_select
= 1;
3285 else if (IS_L_SELECT (p
))
3287 result
->l_r_select
= 0;
3291 result
->l_r_select
= 0;
3296 /* The number might be a predefined register. */
3301 /* Tege hack: Special case for general registers as the general
3302 code makes a binary search with case translation, and is VERY
3307 if (*p
== 'e' && *(p
+ 1) == 't'
3308 && (*(p
+ 2) == '0' || *(p
+ 2) == '1'))
3311 num
= *p
- '0' + 28;
3314 else if (!isdigit (*p
))
3315 as_bad ("Undefined register: '%s'. ASSUMING 0", name
);
3319 num
= num
* 10 + *p
++ - '0';
3320 while (isdigit (*p
));
3325 /* Do a normal register search. */
3326 while (is_part_of_name (c
))
3332 status
= reg_name_search (name
);
3338 as_bad ("Undefined register: '%s'. ASSUMING 0", name
);
3345 /* Store info in RESULT if requested by caller. */
3348 result
->number_part
= num
;
3349 if (IS_R_SELECT (p
- 1))
3350 result
->l_r_select
= 1;
3351 else if (IS_L_SELECT (p
- 1))
3352 result
->l_r_select
= 0;
3354 result
->l_r_select
= 0;
3359 /* And finally, it could be a symbol in the absolute section which
3360 is effectively a constant. */
3364 while (is_part_of_name (c
))
3370 if ((sym
= symbol_find (name
)) != NULL
)
3372 if (S_GET_SEGMENT (sym
) == &bfd_abs_section
)
3373 num
= S_GET_VALUE (sym
);
3377 as_bad ("Non-absolute constant: '%s'. ASSUMING 0", name
);
3385 as_bad ("Undefined absolute constant: '%s'. ASSUMING 0", name
);
3391 /* Store info in RESULT if requested by caller. */
3394 result
->number_part
= num
;
3395 if (IS_R_SELECT (p
- 1))
3396 result
->l_r_select
= 1;
3397 else if (IS_L_SELECT (p
- 1))
3398 result
->l_r_select
= 0;
3400 result
->l_r_select
= 0;
3408 #define REG_NAME_CNT (sizeof(pre_defined_registers) / sizeof(struct pd_reg))
3410 /* Given NAME, find the register number associated with that name, return
3411 the integer value associated with the given name or -1 on failure. */
3414 reg_name_search (name
)
3417 int middle
, low
, high
;
3420 high
= REG_NAME_CNT
- 1;
3424 middle
= (low
+ high
) / 2;
3425 if (strcasecmp (name
, pre_defined_registers
[middle
].name
) < 0)
3430 while (!((strcasecmp (name
, pre_defined_registers
[middle
].name
) == 0) ||
3433 if (strcasecmp (name
, pre_defined_registers
[middle
].name
) == 0)
3434 return (pre_defined_registers
[middle
].value
);
3440 /* Return nonzero if the given INSN and L/R information will require
3441 a new PA-89 opcode. */
3444 need_89_opcode (insn
, result
)
3446 struct pa_89_fp_reg_struct
*result
;
3448 if (result
->l_r_select
== 1 && !(insn
->fpof1
== DBL
&& insn
->fpof2
== DBL
))
3454 /* Parse a condition for a fcmp instruction. Return the numerical
3455 code associated with the condition. */
3458 pa_parse_fp_cmp_cond (s
)
3465 for (i
= 0; i
< 32; i
++)
3467 if (strncasecmp (*s
, fp_cond_map
[i
].string
,
3468 strlen (fp_cond_map
[i
].string
)) == 0)
3470 cond
= fp_cond_map
[i
].cond
;
3471 *s
+= strlen (fp_cond_map
[i
].string
);
3472 while (**s
== ' ' || **s
== '\t')
3478 as_bad ("Invalid FP Compare Condition: %c", **s
);
3482 /* Parse an FP operand format completer returning the completer
3485 static fp_operand_format
3486 pa_parse_fp_format (s
)
3495 if (strncasecmp (*s
, "sgl", 3) == 0)
3500 else if (strncasecmp (*s
, "dbl", 3) == 0)
3505 else if (strncasecmp (*s
, "quad", 4) == 0)
3512 format
= ILLEGAL_FMT
;
3513 as_bad ("Invalid FP Operand Format: %3s", *s
);
3516 while (**s
== ' ' || **s
== '\t' || **s
== 0)
3522 /* Convert from a selector string into a selector type. */
3525 pa_chk_field_selector (str
)
3529 struct selector_entry
*tablep
;
3533 /* Read past any whitespace. */
3534 while (**str
== ' ' || **str
== '\t' || **str
== '\n' || **str
== '\f')
3537 /* Yuk. Looks like a linear search through the table. With the
3538 frequence of some selectors it might make sense to sort the
3540 for (tablep
= selector_table
; tablep
->prefix
; tablep
++)
3542 if (strncasecmp (tablep
->prefix
, *str
, strlen (tablep
->prefix
)) == 0)
3544 *str
+= strlen (tablep
->prefix
);
3545 selector
= tablep
->field_selector
;
3552 /* Mark (via expr_end) the end of an expression (I think). FIXME. */
3555 get_expression (str
)
3561 save_in
= input_line_pointer
;
3562 input_line_pointer
= str
;
3563 seg
= expression (&the_insn
.exp
);
3564 if (!(seg
== absolute_section
3565 || seg
== undefined_section
3566 || SEG_NORMAL (seg
)))
3568 as_warn ("Bad segment in expression.");
3569 expr_end
= input_line_pointer
;
3570 input_line_pointer
= save_in
;
3573 expr_end
= input_line_pointer
;
3574 input_line_pointer
= save_in
;
3578 /* Mark (via expr_end) the end of an absolute expression. FIXME. */
3580 pa_get_absolute_expression (str
)
3585 save_in
= input_line_pointer
;
3586 input_line_pointer
= str
;
3587 expression (&the_insn
.exp
);
3588 if (the_insn
.exp
.X_op
!= O_constant
)
3590 as_warn ("Bad segment (should be absolute).");
3591 expr_end
= input_line_pointer
;
3592 input_line_pointer
= save_in
;
3595 expr_end
= input_line_pointer
;
3596 input_line_pointer
= save_in
;
3600 /* Evaluate an absolute expression EXP which may be modified by
3601 the selector FIELD_SELECTOR. Return the value of the expression. */
3603 evaluate_absolute (exp
, field_selector
)
3609 value
= exp
.X_add_number
;
3611 switch (field_selector
)
3617 /* If bit 21 is on then add 0x800 and arithmetic shift right 11 bits. */
3619 if (value
& 0x00000400)
3621 value
= (value
& 0xfffff800) >> 11;
3624 /* Sign extend from bit 21. */
3626 if (value
& 0x00000400)
3627 value
|= 0xfffff800;
3632 /* Arithmetic shift right 11 bits. */
3634 value
= (value
& 0xfffff800) >> 11;
3637 /* Set bits 0-20 to zero. */
3639 value
= value
& 0x7ff;
3642 /* Add 0x800 and arithmetic shift right 11 bits. */
3647 value
= (value
& 0xfffff800) >> 11;
3650 /* Set bitgs 0-21 to one. */
3652 value
|= 0xfffff800;
3655 /* This had better get fixed. It looks like we're quickly moving
3662 BAD_CASE (field_selector
);
3668 /* Given an argument location specification return the associated
3669 argument location number. */
3672 pa_build_arg_reloc (type_name
)
3676 if (strncasecmp (type_name
, "no", 2) == 0)
3678 if (strncasecmp (type_name
, "gr", 2) == 0)
3680 else if (strncasecmp (type_name
, "fr", 2) == 0)
3682 else if (strncasecmp (type_name
, "fu", 2) == 0)
3685 as_bad ("Invalid argument location: %s\n", type_name
);
3690 /* Encode and return an argument relocation specification for
3691 the given register in the location specified by arg_reloc. */
3694 pa_align_arg_reloc (reg
, arg_reloc
)
3696 unsigned int arg_reloc
;
3698 unsigned int new_reloc
;
3700 new_reloc
= arg_reloc
;
3716 as_bad ("Invalid argument description: %d", reg
);
3722 /* Parse a PA nullification completer (,n). Return nonzero if the
3723 completer was found; return zero if no completer was found. */
3735 if (strncasecmp (*s
, "n", 1) == 0)
3739 as_bad ("Invalid Nullification: (%c)", **s
);
3744 while (**s
== ' ' || **s
== '\t')
3750 /* Parse a non-negated compare/subtract completer returning the
3751 number (for encoding in instrutions) of the given completer.
3753 ISBRANCH specifies whether or not this is parsing a condition
3754 completer for a branch (vs a nullification completer for a
3755 computational instruction. */
3758 pa_parse_nonneg_cmpsub_cmpltr (s
, isbranch
)
3763 char *name
= *s
+ 1;
3771 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
3775 if (strcmp (name
, "=") == 0)
3779 else if (strcmp (name
, "<") == 0)
3783 else if (strcmp (name
, "<=") == 0)
3787 else if (strcmp (name
, "<<") == 0)
3791 else if (strcmp (name
, "<<=") == 0)
3795 else if (strcasecmp (name
, "sv") == 0)
3799 else if (strcasecmp (name
, "od") == 0)
3803 /* If we have something like addb,n then there is no condition
3805 else if (strcasecmp (name
, "n") == 0 && isbranch
)
3817 while (**s
== ' ' || **s
== '\t')
3821 /* Reset pointers if this was really a ,n for a branch instruction. */
3822 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
3828 /* Parse a negated compare/subtract completer returning the
3829 number (for encoding in instrutions) of the given completer.
3831 ISBRANCH specifies whether or not this is parsing a condition
3832 completer for a branch (vs a nullification completer for a
3833 computational instruction. */
3836 pa_parse_neg_cmpsub_cmpltr (s
, isbranch
)
3841 char *name
= *s
+ 1;
3849 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
3853 if (strcasecmp (name
, "tr") == 0)
3857 else if (strcmp (name
, "<>") == 0)
3861 else if (strcmp (name
, ">=") == 0)
3865 else if (strcmp (name
, ">") == 0)
3869 else if (strcmp (name
, ">>=") == 0)
3873 else if (strcmp (name
, ">>") == 0)
3877 else if (strcasecmp (name
, "nsv") == 0)
3881 else if (strcasecmp (name
, "ev") == 0)
3885 /* If we have something like addb,n then there is no condition
3887 else if (strcasecmp (name
, "n") == 0 && isbranch
)
3899 while (**s
== ' ' || **s
== '\t')
3903 /* Reset pointers if this was really a ,n for a branch instruction. */
3904 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
3910 /* Parse a non-negated addition completer returning the number
3911 (for encoding in instrutions) of the given completer.
3913 ISBRANCH specifies whether or not this is parsing a condition
3914 completer for a branch (vs a nullification completer for a
3915 computational instruction. */
3918 pa_parse_nonneg_add_cmpltr (s
, isbranch
)
3923 char *name
= *s
+ 1;
3931 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
3935 if (strcmp (name
, "=") == 0)
3939 else if (strcmp (name
, "<") == 0)
3943 else if (strcmp (name
, "<=") == 0)
3947 else if (strcasecmp (name
, "nuv") == 0)
3951 else if (strcasecmp (name
, "znv") == 0)
3955 else if (strcasecmp (name
, "sv") == 0)
3959 else if (strcasecmp (name
, "od") == 0)
3963 /* If we have something like addb,n then there is no condition
3965 else if (strcasecmp (name
, "n") == 0 && isbranch
)
3977 while (**s
== ' ' || **s
== '\t')
3981 /* Reset pointers if this was really a ,n for a branch instruction. */
3982 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
3988 /* Parse a negated addition completer returning the number
3989 (for encoding in instrutions) of the given completer.
3991 ISBRANCH specifies whether or not this is parsing a condition
3992 completer for a branch (vs a nullification completer for a
3993 computational instruction. */
3996 pa_parse_neg_add_cmpltr (s
, isbranch
)
4001 char *name
= *s
+ 1;
4009 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
4013 if (strcasecmp (name
, "tr") == 0)
4017 else if (strcmp (name
, "<>") == 0)
4021 else if (strcmp (name
, ">=") == 0)
4025 else if (strcmp (name
, ">") == 0)
4029 else if (strcmp (name
, "uv") == 0)
4033 else if (strcmp (name
, "vnz") == 0)
4037 else if (strcasecmp (name
, "nsv") == 0)
4041 else if (strcasecmp (name
, "ev") == 0)
4045 /* If we have something like addb,n then there is no condition
4047 else if (strcasecmp (name
, "n") == 0 && isbranch
)
4059 while (**s
== ' ' || **s
== '\t')
4063 /* Reset pointers if this was really a ,n for a branch instruction. */
4064 if (cmpltr
== 0 && *name
== 'n' && isbranch
)
4070 /* Handle a .BLOCK type pseudo-op. */
4078 unsigned int temp_size
;
4081 temp_size
= get_absolute_expression ();
4083 /* Always fill with zeros, that's what the HP assembler does. */
4086 p
= frag_var (rs_fill
, (int) temp_size
, (int) temp_size
,
4087 (relax_substateT
) 0, (symbolS
*) 0, 1, NULL
);
4088 bzero (p
, temp_size
);
4090 /* Convert 2 bytes at a time. */
4092 for (i
= 0; i
< temp_size
; i
+= 2)
4094 md_number_to_chars (p
+ i
,
4096 (int) ((temp_size
- i
) > 2 ? 2 : (temp_size
- i
)));
4099 pa_undefine_label ();
4100 demand_empty_rest_of_line ();
4104 /* Handle a .CALL pseudo-op. This involves storing away information
4105 about where arguments are to be found so the linker can detect
4106 (and correct) argument location mismatches between caller and callee. */
4112 pa_call_args (&last_call_desc
);
4113 demand_empty_rest_of_line ();
4117 /* Do the dirty work of building a call descriptor which describes
4118 where the caller placed arguments to a function call. */
4121 pa_call_args (call_desc
)
4122 struct call_desc
*call_desc
;
4125 unsigned int temp
, arg_reloc
;
4127 while (!is_end_of_statement ())
4129 name
= input_line_pointer
;
4130 c
= get_symbol_end ();
4131 /* Process a source argument. */
4132 if ((strncasecmp (name
, "argw", 4) == 0))
4134 temp
= atoi (name
+ 4);
4135 p
= input_line_pointer
;
4137 input_line_pointer
++;
4138 name
= input_line_pointer
;
4139 c
= get_symbol_end ();
4140 arg_reloc
= pa_build_arg_reloc (name
);
4141 call_desc
->arg_reloc
|= pa_align_arg_reloc (temp
, arg_reloc
);
4143 /* Process a return value. */
4144 else if ((strncasecmp (name
, "rtnval", 6) == 0))
4146 p
= input_line_pointer
;
4148 input_line_pointer
++;
4149 name
= input_line_pointer
;
4150 c
= get_symbol_end ();
4151 arg_reloc
= pa_build_arg_reloc (name
);
4152 call_desc
->arg_reloc
|= (arg_reloc
& 0x3);
4156 as_bad ("Invalid .CALL argument: %s", name
);
4158 p
= input_line_pointer
;
4160 if (!is_end_of_statement ())
4161 input_line_pointer
++;
4165 /* Return TRUE if FRAG1 and FRAG2 are the same. */
4168 is_same_frag (frag1
, frag2
)
4175 else if (frag2
== NULL
)
4177 else if (frag1
== frag2
)
4179 else if (frag2
->fr_type
== rs_fill
&& frag2
->fr_fix
== 0)
4180 return (is_same_frag (frag1
, frag2
->fr_next
));
4185 /* Build an entry in the UNWIND subspace from the given
4186 function attributes in CALL_INFO. */
4189 pa_build_unwind_subspace (call_info
)
4190 struct call_info
*call_info
;
4193 asection
*seg
, *save_seg
;
4194 subsegT subseg
, save_subseg
;
4198 /* Get into the right seg/subseg. This may involve creating
4199 the seg the first time through. Make sure to have the
4200 old seg/subseg so that we can reset things when we are done. */
4201 subseg
= SUBSEG_UNWIND
;
4202 seg
= bfd_get_section_by_name (stdoutput
, UNWIND_SECTION_NAME
);
4203 if (seg
== ASEC_NULL
)
4205 seg
= bfd_make_section_old_way (stdoutput
, UNWIND_SECTION_NAME
);
4206 bfd_set_section_flags (stdoutput
, seg
,
4207 SEC_READONLY
| SEC_HAS_CONTENTS
4208 | SEC_LOAD
| SEC_RELOC
);
4212 save_subseg
= now_subseg
;
4213 subseg_set (seg
, subseg
);
4216 /* Get some space to hold relocation information for the unwind
4219 call_info
->start_offset_frag
= frag_now
;
4220 call_info
->start_frag_where
= p
- frag_now
->fr_literal
;
4222 /* Relocation info. for start offset of the function. */
4223 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4224 call_info
->start_symbol
, (offsetT
) 0,
4225 (expressionS
*) NULL
, 0, R_HPPA_UNWIND
, e_fsel
, 32, 0,
4228 /* We need to search for the first relocation involving the start_symbol of
4229 this call_info descriptor. */
4233 call_info
->start_fix
= seg_info (now_seg
)->fix_root
;
4234 for (fixP
= call_info
->start_fix
; fixP
; fixP
= fixP
->fx_next
)
4236 if (fixP
->fx_addsy
== call_info
->start_symbol
4237 || fixP
->fx_subsy
== call_info
->start_symbol
)
4239 call_info
->start_fix
= fixP
;
4246 call_info
->end_offset_frag
= frag_now
;
4247 call_info
->end_frag_where
= p
- frag_now
->fr_literal
;
4249 /* Relocation info. for end offset of the function. */
4250 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
4251 call_info
->end_symbol
, (offsetT
) 0,
4252 (expressionS
*) NULL
, 0, R_HPPA_UNWIND
, e_fsel
, 32, 0,
4255 /* We need to search for the first relocation involving the end_symbol of
4256 this call_info descriptor. */
4260 call_info
->end_fix
= seg_info (now_seg
)->fix_root
; /* the default */
4261 for (fixP
= call_info
->end_fix
; fixP
; fixP
= fixP
->fx_next
)
4263 if (fixP
->fx_addsy
== call_info
->end_symbol
4264 || fixP
->fx_subsy
== call_info
->end_symbol
)
4266 call_info
->end_fix
= fixP
;
4272 /* callinfo.frame is in bytes and unwind_desc is in 8 byte units. */
4273 call_info
->ci_unwind
.descriptor
.frame_size
= call_info
->frame
/ 8;
4276 unwind
= (char *) &call_info
->ci_unwind
;
4277 for (i
= 8; i
< sizeof (struct unwind_table
); i
++)
4281 FRAG_APPEND_1_CHAR (c
);
4285 /* Return back to the original segment/subsegment. */
4286 subseg_set (save_seg
, save_subseg
);
4289 /* Process a .CALLINFO pseudo-op. This information is used later
4290 to build unwind descriptors and maybe one day to support
4291 .ENTER and .LEAVE. */
4294 pa_callinfo (unused
)
4300 /* .CALLINFO must appear within a procedure definition. */
4301 if (!within_procedure
)
4302 as_bad (".callinfo is not within a procedure definition");
4304 /* Mark the fact that we found the .CALLINFO for the
4305 current procedure. */
4306 callinfo_found
= TRUE
;
4308 /* Iterate over the .CALLINFO arguments. */
4309 while (!is_end_of_statement ())
4311 name
= input_line_pointer
;
4312 c
= get_symbol_end ();
4313 /* Frame size specification. */
4314 if ((strncasecmp (name
, "frame", 5) == 0))
4316 p
= input_line_pointer
;
4318 input_line_pointer
++;
4319 temp
= get_absolute_expression ();
4320 if ((temp
& 0x3) != 0)
4322 as_bad ("FRAME parameter must be a multiple of 8: %d\n", temp
);
4325 last_call_info
->frame
= temp
;
4327 /* Entry register (GR, GR and SR) specifications. */
4328 else if ((strncasecmp (name
, "entry_gr", 8) == 0))
4330 p
= input_line_pointer
;
4332 input_line_pointer
++;
4333 temp
= get_absolute_expression ();
4334 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
4335 even though %r19 is caller saved. I think this is a bug in
4336 the HP assembler, and we are not going to emulate it. */
4337 if (temp
< 3 || temp
> 18)
4338 as_bad ("Value for ENTRY_GR must be in the range 3..18\n");
4339 last_call_info
->ci_unwind
.descriptor
.entry_gr
= temp
- 2;
4341 else if ((strncasecmp (name
, "entry_fr", 8) == 0))
4343 p
= input_line_pointer
;
4345 input_line_pointer
++;
4346 temp
= get_absolute_expression ();
4347 /* Similarly the HP assembler takes 31 as the high bound even
4348 though %fr21 is the last callee saved floating point register. */
4349 if (temp
< 12 || temp
> 21)
4350 as_bad ("Value for ENTRY_FR must be in the range 12..21\n");
4351 last_call_info
->ci_unwind
.descriptor
.entry_fr
= temp
- 11;
4353 else if ((strncasecmp (name
, "entry_sr", 8) == 0))
4355 p
= input_line_pointer
;
4357 input_line_pointer
++;
4358 temp
= get_absolute_expression ();
4360 as_bad ("Value for ENTRY_SR must be 3\n");
4361 last_call_info
->entry_sr
= temp
- 2;
4363 /* Note whether or not this function performs any calls. */
4364 else if ((strncasecmp (name
, "calls", 5) == 0) ||
4365 (strncasecmp (name
, "caller", 6) == 0))
4367 p
= input_line_pointer
;
4369 last_call_info
->makes_calls
= 1;
4371 else if ((strncasecmp (name
, "no_calls", 8) == 0))
4373 p
= input_line_pointer
;
4375 last_call_info
->makes_calls
= 0;
4377 /* Should RP be saved into the stack. */
4378 else if ((strncasecmp (name
, "save_rp", 7) == 0))
4380 p
= input_line_pointer
;
4382 last_call_info
->ci_unwind
.descriptor
.save_rp
= 1;
4384 /* Likewise for SP. */
4385 else if ((strncasecmp (name
, "save_sp", 7) == 0))
4387 p
= input_line_pointer
;
4389 last_call_info
->ci_unwind
.descriptor
.save_sp
= 1;
4391 /* Is this an unwindable procedure. If so mark it so
4392 in the unwind descriptor. */
4393 else if ((strncasecmp (name
, "no_unwind", 9) == 0))
4395 p
= input_line_pointer
;
4397 last_call_info
->ci_unwind
.descriptor
.cannot_unwind
= 1;
4399 /* Is this an interrupt routine. If so mark it in the
4400 unwind descriptor. */
4401 else if ((strncasecmp (name
, "hpux_int", 7) == 0))
4403 p
= input_line_pointer
;
4405 last_call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 1;
4409 as_bad ("Invalid .CALLINFO argument: %s", name
);
4411 if (!is_end_of_statement ())
4412 input_line_pointer
++;
4415 demand_empty_rest_of_line ();
4419 /* Switch into the code subspace. */
4425 sd_chain_struct
*sdchain
;
4427 /* First time through it might be necessary to create the
4429 if ((sdchain
= is_defined_space ("$TEXT$")) == NULL
)
4431 sdchain
= create_new_space (pa_def_spaces
[0].name
,
4432 pa_def_spaces
[0].spnum
,
4433 pa_def_spaces
[0].loadable
,
4434 pa_def_spaces
[0].defined
,
4435 pa_def_spaces
[0].private,
4436 pa_def_spaces
[0].sort
,
4437 pa_def_spaces
[0].segment
, 0);
4440 SPACE_DEFINED (sdchain
) = 1;
4441 subseg_set (text_section
, SUBSEG_CODE
);
4442 demand_empty_rest_of_line ();
4446 /* This is different than the standard GAS s_comm(). On HP9000/800 machines,
4447 the .comm pseudo-op has the following symtax:
4449 <label> .comm <length>
4451 where <label> is optional and is a symbol whose address will be the start of
4452 a block of memory <length> bytes long. <length> must be an absolute
4453 expression. <length> bytes will be allocated in the current space
4462 label_symbol_struct
*label_symbol
= pa_get_label ();
4465 symbol
= label_symbol
->lss_label
;
4470 size
= get_absolute_expression ();
4474 if (S_IS_DEFINED (symbol
) && S_GET_SEGMENT (symbol
) == bss_section
)
4476 as_bad ("Ignoring attempt to re-define symbol");
4477 ignore_rest_of_line ();
4480 if (S_GET_VALUE (symbol
))
4482 if (S_GET_VALUE (symbol
) != size
)
4484 as_warn ("Length of .comm \"%s\" is already %d. Not changed.",
4485 S_GET_NAME (symbol
), S_GET_VALUE (symbol
));
4491 S_SET_VALUE (symbol
, size
);
4492 S_SET_SEGMENT (symbol
, &bfd_und_section
);
4493 S_SET_EXTERNAL (symbol
);
4496 demand_empty_rest_of_line ();
4499 /* Process a .COPYRIGHT pseudo-op. */
4502 pa_copyright (unused
)
4509 if (*input_line_pointer
== '\"')
4511 ++input_line_pointer
;
4512 name
= input_line_pointer
;
4513 while ((c
= next_char_of_string ()) >= 0)
4515 c
= *input_line_pointer
;
4516 *input_line_pointer
= '\0';
4517 *(input_line_pointer
- 1) = '\0';
4519 /* FIXME. Not supported */
4522 *input_line_pointer
= c
;
4526 as_bad ("Expected \"-ed string");
4528 pa_undefine_label ();
4529 demand_empty_rest_of_line ();
4532 /* Process a .END pseudo-op. */
4538 demand_empty_rest_of_line ();
4542 /* Process a .ENTER pseudo-op. This is not supported. */
4551 /* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
4559 if (!within_procedure
)
4560 as_bad ("Misplaced .entry. Ignored.");
4563 if (!callinfo_found
)
4564 as_bad ("Missing .callinfo.");
4566 last_call_info
->start_frag
= frag_now
;
4568 demand_empty_rest_of_line ();
4569 within_entry_exit
= TRUE
;
4570 where
= frag_more (0);
4572 /* Go back to the last symbol and turn on the BSF_FUNCTION flag.
4573 It will not be on if no .EXPORT pseudo-op exists (static function). */
4574 last_call_info
->start_symbol
->bsym
->flags
|= BSF_FUNCTION
;
4579 /* Handle a .EQU pseudo-op. */
4585 label_symbol_struct
*label_symbol
= pa_get_label ();
4590 symbol
= label_symbol
->lss_label
;
4591 S_SET_VALUE (symbol
, (unsigned int) get_absolute_expression ());
4592 S_SET_SEGMENT (symbol
, &bfd_abs_section
);
4597 as_bad (".REG must use a label");
4599 as_bad (".EQU must use a label");
4602 pa_undefine_label ();
4603 demand_empty_rest_of_line ();
4607 /* Helper function. Does processing for the end of a function. This
4608 usually involves creating some relocations or building special
4609 symbols to mark the end of the function. */
4616 where
= frag_more (0);
4618 /* ELF does not have EXIT relocations. All we do is create a
4619 temporary symbol marking the end of the function. */
4621 char *name
= (char *) xmalloc (strlen ("L\001end_") +
4622 strlen (S_GET_NAME (last_call_info
->start_symbol
)) + 1);
4628 strcpy (name
, "L\001end_");
4629 strcat (name
, S_GET_NAME (last_call_info
->start_symbol
));
4631 symbolP
= symbol_find (name
);
4633 as_warn ("Symbol '%s' already defined.", name
);
4636 /* symbol value should be the offset of the
4637 last instruction of the function */
4638 symbolP
= symbol_new (name
, now_seg
,
4639 (valueT
) (obstack_next_free (&frags
)
4640 - frag_now
->fr_literal
- 4),
4644 symbolP
->bsym
->flags
= BSF_LOCAL
;
4645 symbol_table_insert (symbolP
);
4648 last_call_info
->end_symbol
= symbolP
;
4650 as_bad ("Symbol '%s' could not be created.", name
);
4654 as_bad ("No memory for symbol name.");
4657 /* Stuff away the location of the frag for the end of the function,
4658 and call pa_build_unwind_subspace to add an entry in the unwind
4660 last_call_info
->end_frag
= frag_now
;
4661 pa_build_unwind_subspace (last_call_info
);
4662 exit_processing_complete
= TRUE
;
4665 /* Process a .EXIT pseudo-op. */
4671 if (!within_procedure
)
4672 as_bad (".EXIT must appear within a procedure");
4675 if (!callinfo_found
)
4676 as_bad ("Missing .callinfo");
4679 if (!within_entry_exit
)
4680 as_bad ("No .ENTRY for this .EXIT");
4683 within_entry_exit
= FALSE
;
4688 demand_empty_rest_of_line ();
4692 /* Process a .EXPORT directive. This makes functions external
4693 and provides information such as argument relocation entries
4703 name
= input_line_pointer
;
4704 c
= get_symbol_end ();
4705 /* Make sure the given symbol exists. */
4706 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
4708 as_bad ("Cannot define export symbol: %s\n", name
);
4709 p
= input_line_pointer
;
4711 input_line_pointer
++;
4715 /* OK. Set the external bits and process argument relocations. */
4716 S_SET_EXTERNAL (symbol
);
4717 p
= input_line_pointer
;
4719 if (!is_end_of_statement ())
4721 input_line_pointer
++;
4722 pa_export_args (symbol
);
4724 pa_build_symextn_section ();
4729 demand_empty_rest_of_line ();
4733 /* Helper function to process arguments to a .EXPORT pseudo-op. */
4736 pa_export_args (symbolP
)
4740 unsigned int temp
, arg_reloc
;
4741 obj_symbol_type
*symbol
= (obj_symbol_type
*) symbolP
->bsym
;
4743 if (strncasecmp (input_line_pointer
, "absolute", 8) == 0)
4745 input_line_pointer
+= 8;
4746 S_SET_SEGMENT (symbolP
, &bfd_abs_section
);
4748 else if (strncasecmp (input_line_pointer
, "code", 4) == 0)
4749 input_line_pointer
+= 4;
4750 else if (strncasecmp (input_line_pointer
, "data", 4) == 0)
4751 input_line_pointer
+= 4;
4752 else if ((strncasecmp (input_line_pointer
, "entry", 5) == 0))
4754 input_line_pointer
+= 5;
4755 symbolP
->bsym
->flags
|= BSF_FUNCTION
;
4757 else if (strncasecmp (input_line_pointer
, "millicode", 9) == 0)
4759 input_line_pointer
+= 9;
4761 else if (strncasecmp (input_line_pointer
, "plabel", 6) == 0)
4763 input_line_pointer
+= 6;
4765 else if (strncasecmp (input_line_pointer
, "pri_prog", 8) == 0)
4767 input_line_pointer
+= 8;
4769 else if (strncasecmp (input_line_pointer
, "sec_prog", 8) == 0)
4771 input_line_pointer
+= 8;
4774 /* Now that the type of the exported symbol has been handled,
4775 handle any argument relocation information. */
4776 while (!is_end_of_statement ())
4778 if (*input_line_pointer
== ',')
4779 input_line_pointer
++;
4780 name
= input_line_pointer
;
4781 c
= get_symbol_end ();
4782 /* Argument sources. */
4783 if ((strncasecmp (name
, "argw", 4) == 0))
4785 p
= input_line_pointer
;
4787 input_line_pointer
++;
4788 temp
= atoi (name
+ 4);
4789 name
= input_line_pointer
;
4790 c
= get_symbol_end ();
4791 arg_reloc
= pa_align_arg_reloc (temp
, pa_build_arg_reloc (name
));
4792 symbol
->tc_data
.hppa_arg_reloc
|= arg_reloc
;
4793 *input_line_pointer
= c
;
4795 /* The return value. */
4796 else if ((strncasecmp (name
, "rtnval", 6)) == 0)
4798 p
= input_line_pointer
;
4800 input_line_pointer
++;
4801 name
= input_line_pointer
;
4802 c
= get_symbol_end ();
4803 arg_reloc
= pa_build_arg_reloc (name
);
4804 symbol
->tc_data
.hppa_arg_reloc
|= arg_reloc
;
4805 *input_line_pointer
= c
;
4807 /* Privelege level. */
4808 else if ((strncasecmp (name
, "priv_lev", 8)) == 0)
4810 p
= input_line_pointer
;
4812 input_line_pointer
++;
4813 temp
= atoi (input_line_pointer
);
4814 c
= get_symbol_end ();
4815 *input_line_pointer
= c
;
4819 as_bad ("Undefined .EXPORT/.IMPORT argument (ignored): %s", name
);
4820 p
= input_line_pointer
;
4823 if (!is_end_of_statement ())
4824 input_line_pointer
++;
4828 /* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
4829 assembly file must either be defined in the assembly file, or
4830 explicitly IMPORTED from another. */
4839 name
= input_line_pointer
;
4840 c
= get_symbol_end ();
4842 symbol
= symbol_find_or_make (name
);
4843 p
= input_line_pointer
;
4846 if (!is_end_of_statement ())
4848 input_line_pointer
++;
4849 /* Hmmm. This doesn't look right. */
4850 pa_export_args (symbol
);
4854 /* If the section is undefined, then the symbol is undefined
4855 Since this is an import, leave the section undefined. */
4856 S_SET_SEGMENT (symbol
, &bfd_und_section
);
4859 demand_empty_rest_of_line ();
4863 /* Handle a .LABEL pseudo-op. */
4871 name
= input_line_pointer
;
4872 c
= get_symbol_end ();
4874 if (strlen (name
) > 0)
4877 p
= input_line_pointer
;
4882 as_warn ("Missing label name on .LABEL");
4885 if (!is_end_of_statement ())
4887 as_warn ("extra .LABEL arguments ignored.");
4888 ignore_rest_of_line ();
4890 demand_empty_rest_of_line ();
4894 /* Handle a .LEAVE pseudo-op. This is not supported yet. */
4903 /* Handle a .ORIGIN pseudo-op. */
4910 pa_undefine_label ();
4914 /* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
4915 is for static functions. FIXME. Should share more code with .EXPORT. */
4924 name
= input_line_pointer
;
4925 c
= get_symbol_end ();
4927 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
4929 as_bad ("Cannot define static symbol: %s\n", name
);
4930 p
= input_line_pointer
;
4932 input_line_pointer
++;
4936 S_CLEAR_EXTERNAL (symbol
);
4937 p
= input_line_pointer
;
4939 if (!is_end_of_statement ())
4941 input_line_pointer
++;
4942 pa_export_args (symbol
);
4946 demand_empty_rest_of_line ();
4950 /* Handle a .PROC pseudo-op. It is used to mark the beginning
4951 of a procedure from a syntatical point of view. */
4957 struct call_info
*call_info
;
4959 if (within_procedure
)
4960 as_fatal ("Nested procedures");
4962 /* Reset global variables for new procedure. */
4963 callinfo_found
= FALSE
;
4964 within_procedure
= TRUE
;
4965 exit_processing_complete
= FALSE
;
4967 /* Create another call_info structure. */
4968 call_info
= (struct call_info
*) xmalloc (sizeof (struct call_info
));
4971 as_fatal ("Cannot allocate unwind descriptor\n");
4973 bzero (call_info
, sizeof (struct call_info
));
4975 call_info
->ci_next
= NULL
;
4977 if (call_info_root
== NULL
)
4979 call_info_root
= call_info
;
4980 last_call_info
= call_info
;
4984 last_call_info
->ci_next
= call_info
;
4985 last_call_info
= call_info
;
4988 /* set up defaults on call_info structure */
4990 call_info
->ci_unwind
.descriptor
.cannot_unwind
= 0;
4991 call_info
->ci_unwind
.descriptor
.region_desc
= 1;
4992 call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 0;
4993 call_info
->entry_sr
= ~0;
4994 call_info
->makes_calls
= 1;
4996 /* If we got a .PROC pseudo-op, we know that the function is defined
4997 locally. Make sure it gets into the symbol table. */
4999 label_symbol_struct
*label_symbol
= pa_get_label ();
5003 if (label_symbol
->lss_label
)
5005 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5006 label_symbol
->lss_label
->bsym
->flags
|= BSF_FUNCTION
;
5009 as_bad ("Missing function name for .PROC (corrupted label)");
5012 as_bad ("Missing function name for .PROC");
5015 demand_empty_rest_of_line ();
5019 /* Process the syntatical end of a procedure. Make sure all the
5020 appropriate pseudo-ops were found within the procedure. */
5027 if (!within_procedure
)
5028 as_bad ("misplaced .procend");
5030 if (!callinfo_found
)
5031 as_bad ("Missing .callinfo for this procedure");
5033 if (within_entry_exit
)
5034 as_bad ("Missing .EXIT for a .ENTRY");
5036 if (!exit_processing_complete
)
5039 within_procedure
= FALSE
;
5040 demand_empty_rest_of_line ();
5044 /* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
5045 then create a new space entry to hold the information specified
5046 by the parameters to the .SPACE directive. */
5048 static sd_chain_struct
*
5049 pa_parse_space_stmt (space_name
, create_flag
)
5053 char *name
, *ptemp
, c
;
5054 char loadable
, defined
, private, sort
;
5057 sd_chain_struct
*space
;
5059 /* load default values */
5064 if (strcasecmp (space_name
, "$TEXT$") == 0)
5075 if (!is_end_of_statement ())
5077 print_errors
= FALSE
;
5078 ptemp
= input_line_pointer
+ 1;
5079 /* First see if the space was specified as a number rather than
5080 as a name. According to the PA assembly manual the rest of
5081 the line should be ignored. */
5082 if ((spnum
= pa_parse_number (&ptemp
, 0)) >= 0)
5083 input_line_pointer
= ptemp
;
5086 while (!is_end_of_statement ())
5088 input_line_pointer
++;
5089 name
= input_line_pointer
;
5090 c
= get_symbol_end ();
5091 if ((strncasecmp (name
, "SPNUM", 5) == 0))
5093 *input_line_pointer
= c
;
5094 input_line_pointer
++;
5095 spnum
= get_absolute_expression ();
5097 else if ((strncasecmp (name
, "SORT", 4) == 0))
5099 *input_line_pointer
= c
;
5100 input_line_pointer
++;
5101 sort
= get_absolute_expression ();
5103 else if ((strncasecmp (name
, "UNLOADABLE", 10) == 0))
5105 *input_line_pointer
= c
;
5108 else if ((strncasecmp (name
, "NOTDEFINED", 10) == 0))
5110 *input_line_pointer
= c
;
5113 else if ((strncasecmp (name
, "PRIVATE", 7) == 0))
5115 *input_line_pointer
= c
;
5119 as_bad ("Invalid .SPACE argument");
5122 print_errors
= TRUE
;
5125 /* If create_flag is nonzero, then create the new space with
5126 the attributes computed above. Else set the values in
5127 an already existing space -- this can only happen for
5128 the first occurence of a built-in space. */
5130 space
= create_new_space (space_name
, spnum
, loadable
, defined
,
5131 private, sort
, seg
, 1);
5134 space
= is_defined_space (space_name
);
5135 SPACE_SPNUM (space
) = spnum
;
5136 SPACE_LOADABLE (space
) = loadable
& 1;
5137 SPACE_DEFINED (space
) = defined
& 1;
5138 SPACE_USER_DEFINED (space
) = 1;
5139 SPACE_PRIVATE (space
) = private & 1;
5140 SPACE_SORT (space
) = sort
& 0xff;
5141 space
->sd_seg
= seg
;
5146 /* Adjust the frag's alignment according to the alignment needs
5147 of the given subspace/subsegment. */
5150 pa_align_subseg (seg
, subseg
)
5154 ssd_chain_struct
*now_subspace
;
5158 now_subspace
= pa_subsegment_to_subspace (seg
, subseg
);
5161 if (SUBSPACE_ALIGN (now_subspace
) == 0)
5162 alignment
= now_subspace
->ssd_last_align
;
5163 else if (now_subspace
->ssd_last_align
> SUBSPACE_ALIGN (now_subspace
))
5164 alignment
= now_subspace
->ssd_last_align
;
5166 alignment
= SUBSPACE_ALIGN (now_subspace
);
5168 while ((1 << shift
) < alignment
)
5172 shift
= bfd_get_section_alignment (stdoutput
, seg
);
5174 frag_align (shift
, 0);
5177 /* Handle a .SPACE pseudo-op; this switches the current space to the
5178 given space, creating the new space if necessary. */
5184 char *name
, c
, *space_name
, *save_s
;
5186 sd_chain_struct
*sd_chain
;
5188 if (within_procedure
)
5190 as_bad ("Can\'t change spaces within a procedure definition. Ignored");
5191 ignore_rest_of_line ();
5195 /* Check for some of the predefined spaces. FIXME: most of the code
5196 below is repeated several times, can we extract the common parts
5197 and place them into a subroutine or something similar? */
5198 if (strncasecmp (input_line_pointer
, "$text$", 6) == 0)
5200 input_line_pointer
+= 6;
5201 sd_chain
= is_defined_space ("$TEXT$");
5202 if (sd_chain
== NULL
)
5203 sd_chain
= pa_parse_space_stmt ("$TEXT$", 1);
5204 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5205 sd_chain
= pa_parse_space_stmt ("$TEXT$", 0);
5207 current_space
= sd_chain
;
5209 /* No need to align if we are already there. */
5210 if (now_seg
!= text_section
)
5211 pa_align_subseg (now_seg
, now_subseg
);
5213 subseg_set (text_section
, sd_chain
->sd_last_subseg
);
5216 = pa_subsegment_to_subspace (text_section
,
5217 sd_chain
->sd_last_subseg
);
5218 demand_empty_rest_of_line ();
5221 if (strncasecmp (input_line_pointer
, "$private$", 9) == 0)
5223 input_line_pointer
+= 9;
5224 sd_chain
= is_defined_space ("$PRIVATE$");
5225 if (sd_chain
== NULL
)
5226 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 1);
5227 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5228 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 0);
5230 current_space
= sd_chain
;
5232 /* No need to align if we are already there. */
5233 if (now_seg
!= data_section
)
5234 pa_align_subseg (now_seg
, now_subseg
);
5236 subseg_set (data_section
, sd_chain
->sd_last_subseg
);
5238 = pa_subsegment_to_subspace (data_section
,
5239 sd_chain
->sd_last_subseg
);
5240 demand_empty_rest_of_line ();
5243 if (!strncasecmp (input_line_pointer
,
5244 GDB_DEBUG_SPACE_NAME
,
5245 strlen (GDB_DEBUG_SPACE_NAME
)))
5247 input_line_pointer
+= strlen (GDB_DEBUG_SPACE_NAME
);
5248 sd_chain
= is_defined_space (GDB_DEBUG_SPACE_NAME
);
5249 if (sd_chain
== NULL
)
5250 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 1);
5251 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
5252 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 0);
5254 current_space
= sd_chain
;
5257 asection
*gdb_section
5258 = bfd_make_section_old_way (stdoutput
, GDB_DEBUG_SPACE_NAME
);
5260 /* No need to align if we are already there. */
5261 if (strcmp (segment_name (now_seg
), GDB_DEBUG_SPACE_NAME
) != 0)
5262 pa_align_subseg (now_seg
, now_subseg
);
5264 subseg_set (gdb_section
, sd_chain
->sd_last_subseg
);
5266 = pa_subsegment_to_subspace (gdb_section
,
5267 sd_chain
->sd_last_subseg
);
5269 demand_empty_rest_of_line ();
5273 /* It could be a space specified by number. */
5275 save_s
= input_line_pointer
;
5276 if ((temp
= pa_parse_number (&input_line_pointer
, 0)) >= 0)
5278 if (sd_chain
= pa_find_space_by_number (temp
))
5280 current_space
= sd_chain
;
5282 if (now_seg
!= sd_chain
->sd_seg
)
5283 pa_align_subseg (now_seg
, now_subseg
);
5284 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
5286 = pa_subsegment_to_subspace (sd_chain
->sd_seg
,
5287 sd_chain
->sd_last_subseg
);
5288 demand_empty_rest_of_line ();
5293 /* Not a number, attempt to create a new space. */
5295 input_line_pointer
= save_s
;
5296 name
= input_line_pointer
;
5297 c
= get_symbol_end ();
5298 space_name
= xmalloc (strlen (name
) + 1);
5299 strcpy (space_name
, name
);
5300 *input_line_pointer
= c
;
5302 sd_chain
= pa_parse_space_stmt (space_name
, 1);
5303 current_space
= sd_chain
;
5305 if (now_seg
!= sd_chain
->sd_seg
)
5306 pa_align_subseg (now_seg
, now_subseg
);
5307 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
5308 current_subspace
= pa_subsegment_to_subspace (sd_chain
->sd_seg
,
5309 sd_chain
->sd_last_subseg
);
5310 demand_empty_rest_of_line ();
5315 /* Switch to a new space. (I think). FIXME. */
5324 sd_chain_struct
*space
;
5326 name
= input_line_pointer
;
5327 c
= get_symbol_end ();
5328 space
= is_defined_space (name
);
5332 md_number_to_chars (p
, SPACE_SPNUM (space
), 4);
5335 as_warn ("Undefined space: '%s' Assuming space number = 0.", name
);
5337 *input_line_pointer
= c
;
5338 demand_empty_rest_of_line ();
5342 /* If VALUE is an exact power of two between zero and 2^31, then
5343 return log2 (VALUE). Else return -1. */
5351 while ((1 << shift
) != value
&& shift
< 32)
5360 /* Handle a .SPACE pseudo-op; this switches the current subspace to the
5361 given subspace, creating the new subspace if necessary.
5363 FIXME. Should mirror pa_space more closely, in particular how
5364 they're broken up into subroutines. */
5367 pa_subspace (unused
)
5370 char *name
, *ss_name
, c
;
5371 char loadable
, code_only
, common
, dup_common
, zero
, sort
;
5372 int i
, access
, space_index
, alignment
, quadrant
;
5373 sd_chain_struct
*space
;
5374 ssd_chain_struct
*ssd
;
5376 if (within_procedure
)
5378 as_bad ("Can\'t change subspaces within a procedure definition. Ignored");
5379 ignore_rest_of_line ();
5383 name
= input_line_pointer
;
5384 c
= get_symbol_end ();
5385 ss_name
= xmalloc (strlen (name
) + 1);
5386 strcpy (ss_name
, name
);
5387 *input_line_pointer
= c
;
5389 /* Load default values. */
5401 space
= pa_segment_to_space (now_seg
);
5402 ssd
= is_defined_subspace (name
, space
->sd_last_subseg
);
5405 subseg_set (ssd
->ssd_seg
, ssd
->ssd_subseg
);
5406 if (!is_end_of_statement ())
5407 as_warn ("Parameters of an existing subspace can\'t be modified");
5408 demand_empty_rest_of_line ();
5413 /* A new subspace. Load default values. */
5415 while (pa_def_subspaces
[i
].name
)
5417 if (strcasecmp (pa_def_subspaces
[i
].name
, ss_name
) == 0)
5419 loadable
= pa_def_subspaces
[i
].loadable
;
5420 common
= pa_def_subspaces
[i
].common
;
5421 dup_common
= pa_def_subspaces
[i
].dup_common
;
5422 code_only
= pa_def_subspaces
[i
].code_only
;
5423 zero
= pa_def_subspaces
[i
].zero
;
5424 space_index
= pa_def_subspaces
[i
].space_index
;
5425 alignment
= pa_def_subspaces
[i
].alignment
;
5426 quadrant
= pa_def_subspaces
[i
].quadrant
;
5427 access
= pa_def_subspaces
[i
].access
;
5428 sort
= pa_def_subspaces
[i
].sort
;
5435 /* We should be working with a new subspace now. Fill in
5436 any information as specified by the user. */
5437 if (!is_end_of_statement ())
5439 input_line_pointer
++;
5440 while (!is_end_of_statement ())
5442 name
= input_line_pointer
;
5443 c
= get_symbol_end ();
5444 if ((strncasecmp (name
, "QUAD", 4) == 0))
5446 *input_line_pointer
= c
;
5447 input_line_pointer
++;
5448 quadrant
= get_absolute_expression ();
5450 else if ((strncasecmp (name
, "ALIGN", 5) == 0))
5452 *input_line_pointer
= c
;
5453 input_line_pointer
++;
5454 alignment
= get_absolute_expression ();
5455 if (log2 (alignment
) == -1)
5457 as_bad ("Alignment must be a power of 2");
5461 else if ((strncasecmp (name
, "ACCESS", 6) == 0))
5463 *input_line_pointer
= c
;
5464 input_line_pointer
++;
5465 access
= get_absolute_expression ();
5467 else if ((strncasecmp (name
, "SORT", 4) == 0))
5469 *input_line_pointer
= c
;
5470 input_line_pointer
++;
5471 sort
= get_absolute_expression ();
5473 else if ((strncasecmp (name
, "CODE_ONLY", 9) == 0))
5475 *input_line_pointer
= c
;
5478 else if ((strncasecmp (name
, "UNLOADABLE", 10) == 0))
5480 *input_line_pointer
= c
;
5483 else if ((strncasecmp (name
, "COMMON", 6) == 0))
5485 *input_line_pointer
= c
;
5488 else if ((strncasecmp (name
, "DUP_COMM", 8) == 0))
5490 *input_line_pointer
= c
;
5493 else if ((strncasecmp (name
, "ZERO", 4) == 0))
5495 *input_line_pointer
= c
;
5498 else if ((strncasecmp (name
, "FIRST", 5) == 0))
5499 as_bad ("FIRST not supported as a .SUBSPACE argument");
5501 as_bad ("Invalid .SUBSPACE argument");
5502 if (!is_end_of_statement ())
5503 input_line_pointer
++;
5507 /* Now that all the flags are set, update an existing subspace,
5508 or create a new one with the given flags if the subspace does
5509 not currently exist. */
5510 space
= pa_segment_to_space (now_seg
);
5512 current_subspace
= update_subspace (ss_name
, loadable
, code_only
,
5513 common
, dup_common
, sort
, zero
,
5514 access
, space_index
, alignment
,
5515 quadrant
, ssd
->ssd_subseg
);
5517 current_subspace
= create_new_subspace (space
, ss_name
, loadable
,
5519 dup_common
, zero
, sort
,
5520 access
, space_index
,
5521 alignment
, quadrant
, now_seg
);
5522 SUBSPACE_SUBSPACE_START (current_subspace
) = pa_subspace_start (space
,
5525 demand_empty_rest_of_line ();
5526 subseg_set (current_subspace
->ssd_seg
, current_subspace
->ssd_subseg
);
5532 /* Create default space and subspace dictionaries. */
5537 sd_chain_struct
*space
;
5540 space_dict_root
= NULL
;
5541 space_dict_last
= NULL
;
5544 while (pa_def_spaces
[i
].name
)
5546 if (pa_def_spaces
[i
].alias
)
5547 pa_def_spaces
[i
].segment
= subseg_new (pa_def_spaces
[i
].alias
, 0);
5549 pa_def_spaces
[i
].segment
5550 = bfd_make_section_old_way (stdoutput
, pa_def_spaces
[i
].name
);
5552 create_new_space (pa_def_spaces
[i
].name
, pa_def_spaces
[i
].spnum
,
5553 pa_def_spaces
[i
].loadable
, pa_def_spaces
[i
].defined
,
5554 pa_def_spaces
[i
].private, pa_def_spaces
[i
].sort
,
5555 pa_def_spaces
[i
].segment
, 0);
5560 while (pa_def_subspaces
[i
].name
)
5562 space
= pa_segment_to_space (pa_def_spaces
[pa_def_subspaces
[i
].def_space_index
].segment
);
5565 char *name
= pa_def_subspaces
[i
].alias
;
5567 name
= pa_def_subspaces
[i
].name
;
5568 create_new_subspace (space
, name
,
5569 pa_def_subspaces
[i
].loadable
,
5570 pa_def_subspaces
[i
].code_only
,
5571 pa_def_subspaces
[i
].common
,
5572 pa_def_subspaces
[i
].dup_common
,
5573 pa_def_subspaces
[i
].zero
,
5574 pa_def_subspaces
[i
].sort
,
5575 pa_def_subspaces
[i
].access
,
5576 pa_def_subspaces
[i
].space_index
,
5577 pa_def_subspaces
[i
].alignment
,
5578 pa_def_subspaces
[i
].quadrant
,
5579 pa_def_spaces
[pa_def_subspaces
[i
].def_space_index
].segment
);
5580 subseg_new (name
, pa_def_subspaces
[i
].subsegment
);
5583 as_fatal ("Internal error: space missing for subspace \"%s\"\n",
5584 pa_def_subspaces
[i
].name
);
5591 /* Create a new space NAME, with the appropriate flags as defined
5592 by the given parameters.
5594 Add the new space to the space dictionary chain in numerical
5595 order as defined by the SORT entries. */
5597 static sd_chain_struct
*
5598 create_new_space (name
, spnum
, loadable
, defined
, private,
5599 sort
, seg
, user_defined
)
5609 sd_chain_struct
*chain_entry
;
5611 chain_entry
= (sd_chain_struct
*) xmalloc (sizeof (sd_chain_struct
));
5613 as_fatal ("Out of memory: could not allocate new space chain entry: %s\n",
5616 SPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
5617 strcpy (SPACE_NAME (chain_entry
), name
);
5618 SPACE_NAME_INDEX (chain_entry
) = 0;
5619 SPACE_LOADABLE (chain_entry
) = loadable
;
5620 SPACE_DEFINED (chain_entry
) = defined
;
5621 SPACE_USER_DEFINED (chain_entry
) = user_defined
;
5622 SPACE_PRIVATE (chain_entry
) = private;
5623 SPACE_SPNUM (chain_entry
) = spnum
;
5624 SPACE_SORT (chain_entry
) = sort
;
5626 chain_entry
->sd_seg
= seg
;
5627 chain_entry
->sd_last_subseg
= -1;
5628 chain_entry
->sd_next
= NULL
;
5630 /* Find spot for the new space based on its sort key. */
5631 if (!space_dict_last
)
5632 space_dict_last
= chain_entry
;
5634 if (space_dict_root
== NULL
)
5635 space_dict_root
= chain_entry
;
5638 sd_chain_struct
*chain_pointer
;
5639 sd_chain_struct
*prev_chain_pointer
;
5641 chain_pointer
= space_dict_root
;
5642 prev_chain_pointer
= NULL
;
5644 while (chain_pointer
)
5646 if (SPACE_SORT (chain_pointer
) <= SPACE_SORT (chain_entry
))
5648 prev_chain_pointer
= chain_pointer
;
5649 chain_pointer
= chain_pointer
->sd_next
;
5655 /* At this point we've found the correct place to add the new
5656 entry. So add it and update the linked lists as appropriate. */
5657 if (prev_chain_pointer
)
5659 chain_entry
->sd_next
= chain_pointer
;
5660 prev_chain_pointer
->sd_next
= chain_entry
;
5664 space_dict_root
= chain_entry
;
5665 chain_entry
->sd_next
= chain_pointer
;
5668 if (chain_entry
->sd_next
== NULL
)
5669 space_dict_last
= chain_entry
;
5675 /* Create a new subspace NAME, with the appropriate flags as defined
5676 by the given parameters.
5678 Add the new subspace to the subspace dictionary chain in numerical
5679 order as defined by the SORT entries. */
5681 static ssd_chain_struct
*
5682 create_new_subspace (space
, name
, loadable
, code_only
, common
,
5683 dup_common
, is_zero
, sort
, access
, space_index
,
5684 alignment
, quadrant
, seg
)
5685 sd_chain_struct
*space
;
5687 char loadable
, code_only
, common
, dup_common
, is_zero
;
5695 ssd_chain_struct
*chain_entry
;
5696 symbolS
*start_symbol
;
5698 chain_entry
= (ssd_chain_struct
*) xmalloc (sizeof (ssd_chain_struct
));
5700 as_fatal ("Out of memory: could not allocate new subspace chain entry: %s\n", name
);
5702 SUBSPACE_NAME (chain_entry
) = (char *) xmalloc (strlen (name
) + 1);
5703 strcpy (SUBSPACE_NAME (chain_entry
), name
);
5705 SUBSPACE_ACCESS (chain_entry
) = access
;
5706 SUBSPACE_LOADABLE (chain_entry
) = loadable
;
5707 SUBSPACE_COMMON (chain_entry
) = common
;
5708 SUBSPACE_DUP_COMM (chain_entry
) = dup_common
;
5709 SUBSPACE_SORT (chain_entry
) = sort
;
5710 SUBSPACE_CODE_ONLY (chain_entry
) = code_only
;
5711 SUBSPACE_ALIGN (chain_entry
) = alignment
;
5712 SUBSPACE_QUADRANT (chain_entry
) = quadrant
;
5713 SUBSPACE_SUBSPACE_START (chain_entry
) = pa_subspace_start (space
, quadrant
);
5714 SUBSPACE_SPACE_INDEX (chain_entry
) = space_index
;
5715 SUBSPACE_ZERO (chain_entry
) = is_zero
;
5717 chain_entry
->ssd_subseg
= pa_next_subseg (space
);
5718 chain_entry
->ssd_seg
= seg
;
5719 chain_entry
->ssd_last_align
= 1;
5720 chain_entry
->ssd_next
= NULL
;
5722 /* Find spot for the new subspace based on its sort key. */
5723 if (space
->sd_subspaces
== NULL
)
5724 space
->sd_subspaces
= chain_entry
;
5727 ssd_chain_struct
*chain_pointer
;
5728 ssd_chain_struct
*prev_chain_pointer
;
5730 chain_pointer
= space
->sd_subspaces
;
5731 prev_chain_pointer
= NULL
;
5733 while (chain_pointer
)
5735 if (SUBSPACE_SORT (chain_pointer
) <= SUBSPACE_SORT (chain_entry
))
5737 prev_chain_pointer
= chain_pointer
;
5738 chain_pointer
= chain_pointer
->ssd_next
;
5745 /* Now we have somewhere to put the new entry. Insert it and update
5747 if (prev_chain_pointer
)
5749 chain_entry
->ssd_next
= chain_pointer
;
5750 prev_chain_pointer
->ssd_next
= chain_entry
;
5754 space
->sd_subspaces
= chain_entry
;
5755 chain_entry
->ssd_next
= chain_pointer
;
5763 /* Update the information for the given subspace based upon the
5764 various arguments. Return the modified subspace chain entry. */
5766 static ssd_chain_struct
*
5767 update_subspace (name
, loadable
, code_only
, common
, dup_common
, sort
,
5768 zero
, access
, space_index
, alignment
, quadrant
, subseg
)
5782 ssd_chain_struct
*chain_entry
;
5784 if ((chain_entry
= is_defined_subspace (name
, subseg
)))
5786 SUBSPACE_ACCESS (chain_entry
) = access
;
5787 SUBSPACE_LOADABLE (chain_entry
) = loadable
;
5788 SUBSPACE_COMMON (chain_entry
) = common
;
5789 SUBSPACE_DUP_COMM (chain_entry
) = dup_common
;
5790 SUBSPACE_CODE_ONLY (chain_entry
) = 1;
5791 SUBSPACE_SORT (chain_entry
) = sort
;
5792 SUBSPACE_ALIGN (chain_entry
) = alignment
;
5793 SUBSPACE_QUADRANT (chain_entry
) = quadrant
;
5794 SUBSPACE_SPACE_INDEX (chain_entry
) = space_index
;
5795 SUBSPACE_ZERO (chain_entry
) = zero
;
5804 /* Return the space chain entry for the space with the name NAME or
5805 NULL if no such space exists. */
5807 static sd_chain_struct
*
5808 is_defined_space (name
)
5811 sd_chain_struct
*chain_pointer
;
5813 for (chain_pointer
= space_dict_root
;
5815 chain_pointer
= chain_pointer
->sd_next
)
5817 if (strcmp (SPACE_NAME (chain_pointer
), name
) == 0)
5818 return chain_pointer
;
5821 /* No mapping from segment to space was found. Return NULL. */
5825 /* Find and return the space associated with the given seg. If no mapping
5826 from the given seg to a space is found, then return NULL.
5828 Unlike subspaces, the number of spaces is not expected to grow much,
5829 so a linear exhaustive search is OK here. */
5831 static sd_chain_struct
*
5832 pa_segment_to_space (seg
)
5835 sd_chain_struct
*space_chain
;
5837 /* Walk through each space looking for the correct mapping. */
5838 for (space_chain
= space_dict_root
;
5840 space_chain
= space_chain
->sd_next
)
5842 if (space_chain
->sd_seg
== seg
)
5846 /* Mapping was not found. Return NULL. */
5850 /* Return the space chain entry for the subspace with the name NAME or
5851 NULL if no such subspace exists.
5853 Uses a linear search through all the spaces and subspaces, this may
5854 not be appropriate if we ever being placing each function in its
5857 static ssd_chain_struct
*
5858 is_defined_subspace (name
, subseg
)
5862 sd_chain_struct
*space_chain
;
5863 ssd_chain_struct
*subspace_chain
;
5865 /* Walk through each space. */
5866 for (space_chain
= space_dict_root
;
5868 space_chain
= space_chain
->sd_next
)
5870 /* Walk through each subspace looking for a name which matches. */
5871 for (subspace_chain
= space_chain
->sd_subspaces
;
5873 subspace_chain
= subspace_chain
->ssd_next
)
5874 if (strcmp (SUBSPACE_NAME (subspace_chain
), name
) == 0)
5875 return subspace_chain
;
5878 /* Subspace wasn't found. Return NULL. */
5882 /* Find and return the subspace associated with the given seg. If no
5883 mapping from the given seg to a subspace is found, then return NULL.
5885 If we ever put each procedure/function within its own subspace
5886 (to make life easier on the compiler and linker), then this will have
5887 to become more efficient. */
5889 static ssd_chain_struct
*
5890 pa_subsegment_to_subspace (seg
, subseg
)
5894 sd_chain_struct
*space_chain
;
5895 ssd_chain_struct
*subspace_chain
;
5897 /* Walk through each space. */
5898 for (space_chain
= space_dict_root
;
5900 space_chain
= space_chain
->sd_next
)
5902 if (space_chain
->sd_seg
== seg
)
5904 /* Walk through each subspace within each space looking for
5905 the correct mapping. */
5906 for (subspace_chain
= space_chain
->sd_subspaces
;
5908 subspace_chain
= subspace_chain
->ssd_next
)
5909 if (subspace_chain
->ssd_subseg
== (int) subseg
)
5910 return subspace_chain
;
5914 /* No mapping from subsegment to subspace found. Return NULL. */
5918 /* Given a number, try and find a space with the name number.
5920 Return a pointer to a space dictionary chain entry for the space
5921 that was found or NULL on failure. */
5923 static sd_chain_struct
*
5924 pa_find_space_by_number (number
)
5927 sd_chain_struct
*space_chain
;
5929 for (space_chain
= space_dict_root
;
5931 space_chain
= space_chain
->sd_next
)
5933 if (SPACE_SPNUM (space_chain
) == number
)
5937 /* No appropriate space found. Return NULL. */
5941 /* Return the starting address for the given subspace. If the starting
5942 address is unknown then return zero. */
5945 pa_subspace_start (space
, quadrant
)
5946 sd_chain_struct
*space
;
5949 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
5950 is not correct for the PA OSF1 port. */
5951 if ((strcasecmp (SPACE_NAME (space
), "$PRIVATE$") == 0) && quadrant
== 1)
5953 else if (space
->sd_seg
== data_section
&& quadrant
== 1)
5959 /* FIXME. Needs documentation. */
5961 pa_next_subseg (space
)
5962 sd_chain_struct
*space
;
5965 space
->sd_last_subseg
++;
5966 return space
->sd_last_subseg
;
5969 /* Helper function for pa_stringer. Used to find the end of
5976 unsigned int c
= *s
& CHAR_MASK
;
5988 /* Handle a .STRING type pseudo-op. */
5991 pa_stringer (append_zero
)
5994 char *s
, num_buf
[4];
5998 /* Preprocess the string to handle PA-specific escape sequences.
5999 For example, \xDD where DD is a hexidecimal number should be
6000 changed to \OOO where OOO is an octal number. */
6002 /* Skip the opening quote. */
6003 s
= input_line_pointer
+ 1;
6005 while (is_a_char (c
= pa_stringer_aux (s
++)))
6012 /* Handle \x<num>. */
6015 unsigned int number
;
6020 /* Get pas the 'x'. */
6022 for (num_digit
= 0, number
= 0, dg
= *s
;
6024 && (isdigit (dg
) || (dg
>= 'a' && dg
<= 'f')
6025 || (dg
>= 'A' && dg
<= 'F'));
6029 number
= number
* 16 + dg
- '0';
6030 else if (dg
>= 'a' && dg
<= 'f')
6031 number
= number
* 16 + dg
- 'a' + 10;
6033 number
= number
* 16 + dg
- 'A' + 10;
6043 sprintf (num_buf
, "%02o", number
);
6046 sprintf (num_buf
, "%03o", number
);
6049 for (i
= 0; i
<= num_digit
; i
++)
6050 s_start
[i
] = num_buf
[i
];
6054 /* This might be a "\"", skip over the escaped char. */
6061 stringer (append_zero
);
6062 pa_undefine_label ();
6065 /* Handle a .VERSION pseudo-op. */
6072 pa_undefine_label ();
6075 /* Just like a normal cons, but when finished we have to undefine
6076 the latest space label. */
6083 pa_undefine_label ();
6086 /* Switch to the data space. As usual delete our label. */
6093 pa_undefine_label ();
6096 /* FIXME. What's the purpose of this pseudo-op? */
6102 pa_undefine_label ();
6105 /* Like float_cons, but we need to undefine our label. */
6108 pa_float_cons (float_type
)
6111 float_cons (float_type
);
6112 pa_undefine_label ();
6115 /* Like s_fill, but delete our label when finished. */
6122 pa_undefine_label ();
6125 /* Like lcomm, but delete our label when finished. */
6128 pa_lcomm (needs_align
)
6131 s_lcomm (needs_align
);
6132 pa_undefine_label ();
6135 /* Like lsym, but delete our label when finished. */
6142 pa_undefine_label ();
6145 /* Switch to the text space. Like s_text, but delete our
6146 label when finished. */
6152 pa_undefine_label ();
6155 /* On the PA relocations which involve function symbols must not be
6156 adjusted. This so that the linker can know when/how to create argument
6157 relocation stubs for indirect calls and calls to static functions.
6159 FIXME. Also reject R_HPPA relocations which are 32 bits
6160 wide. Helps with code lables in arrays for SOM. (SOM BFD code
6161 needs to generate relocations to push the addend and symbol value
6162 onto the stack, add them, then pop the value off the stack and
6163 use it in a relocation -- yuk. */
6166 hppa_fix_adjustable (fixp
)
6169 struct hppa_fix_struct
*hppa_fix
;
6171 hppa_fix
= fixp
->tc_fix_data
;
6173 if (fixp
->fx_r_type
== R_HPPA
&& hppa_fix
->fx_r_format
== 32)
6176 if (fixp
->fx_addsy
== 0
6177 || (fixp
->fx_addsy
->bsym
->flags
& BSF_FUNCTION
) == 0)
6183 /* Now for some ELF specific code. FIXME. */
6185 static symext_chainS
*symext_rootP
;
6186 static symext_chainS
*symext_lastP
;
6188 /* Do any symbol processing requested by the target-cpu or target-format. */
6191 hppa_tc_symbol (abfd
, symbolP
, sym_idx
)
6193 elf_symbol_type
*symbolP
;
6196 symext_chainS
*symextP
;
6197 unsigned int arg_reloc
;
6199 /* Only functions can have argument relocations. */
6200 if (!(symbolP
->symbol
.flags
& BSF_FUNCTION
))
6203 arg_reloc
= symbolP
->tc_data
.hppa_arg_reloc
;
6205 /* If there are no argument relocation bits, then no relocation is
6206 necessary. Do not add this to the symextn section. */
6210 symextP
= (symext_chainS
*) bfd_alloc (abfd
, sizeof (symext_chainS
) * 2);
6212 symextP
[0].entry
= ELF32_HPPA_SX_WORD (HPPA_SXT_SYMNDX
, sym_idx
);
6213 symextP
[0].next
= &symextP
[1];
6215 symextP
[1].entry
= ELF32_HPPA_SX_WORD (HPPA_SXT_ARG_RELOC
, arg_reloc
);
6216 symextP
[1].next
= NULL
;
6218 if (symext_rootP
== NULL
)
6220 symext_rootP
= &symextP
[0];
6221 symext_lastP
= &symextP
[1];
6225 symext_lastP
->next
= &symextP
[0];
6226 symext_lastP
= &symextP
[1];
6230 /* Make sections needed by the target cpu and/or target format. */
6232 hppa_tc_make_sections (abfd
)
6235 symext_chainS
*symextP
;
6237 asection
*symextn_sec
;
6238 segT save_seg
= now_seg
;
6239 subsegT save_subseg
= now_subseg
;
6241 /* Build the symbol extension section. */
6242 hppa_tc_make_symextn_section ();
6244 /* Force some calculation to occur. */
6245 bfd_set_section_contents (stdoutput
, stdoutput
->sections
, "", 0, 0);
6247 hppa_elf_stub_finish (abfd
);
6249 /* If no symbols for the symbol extension section, then stop now. */
6250 if (symext_rootP
== NULL
)
6253 /* Count the number of symbols for the symbol extension section. */
6254 for (n
= 0, symextP
= symext_rootP
; symextP
; symextP
= symextP
->next
, ++n
)
6257 size
= sizeof (symext_entryS
) * n
;
6259 /* Switch to the symbol extension section. */
6260 symextn_sec
= subseg_new (SYMEXTN_SECTION_NAME
, 0);
6262 frag_wane (frag_now
);
6265 for (symextP
= symext_rootP
; symextP
; symextP
= symextP
->next
)
6268 int *symtab_map
= elf_sym_extra (abfd
);
6271 /* First, patch the symbol extension record to reflect the true
6272 symbol table index. */
6274 if (ELF32_HPPA_SX_TYPE (symextP
->entry
) == HPPA_SXT_SYMNDX
)
6276 idx
= ELF32_HPPA_SX_VAL (symextP
->entry
) - 1;
6277 symextP
->entry
= ELF32_HPPA_SX_WORD (HPPA_SXT_SYMNDX
,
6281 ptr
= frag_more (sizeof (symextP
->entry
));
6282 md_number_to_chars (ptr
, symextP
->entry
, sizeof (symextP
->entry
));
6285 frag_now
->fr_fix
= obstack_next_free (&frags
) - frag_now
->fr_literal
;
6286 frag_wane (frag_now
);
6288 /* Switch back to the original segment. */
6289 subseg_set (save_seg
, save_subseg
);
6294 /* Make the symbol extension section. */
6297 hppa_tc_make_symextn_section ()
6301 symext_chainS
*symextP
;
6305 segT save_seg
= now_seg
;
6306 subsegT save_subseg
= now_subseg
;
6308 for (n
= 0, symextP
= symext_rootP
; symextP
; symextP
= symextP
->next
, ++n
)
6311 size
= sizeof (symext_entryS
) * n
;
6313 symextn_sec
= subseg_new (SYMEXTN_SECTION_NAME
, 0);
6315 bfd_set_section_flags (stdoutput
, symextn_sec
,
6316 SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_DATA
);
6317 bfd_set_section_size (stdoutput
, symextn_sec
, size
);
6319 /* Now, switch back to the original segment. */
6320 subseg_set (save_seg
, save_subseg
);
6324 /* Build the symbol extension section. */
6327 pa_build_symextn_section ()
6330 asection
*save_seg
= now_seg
;
6331 subsegT subseg
= (subsegT
) 0;
6332 subsegT save_subseg
= now_subseg
;
6334 seg
= subseg_new (".hppa_symextn", subseg
);
6335 bfd_set_section_flags (stdoutput
,
6337 SEC_HAS_CONTENTS
| SEC_READONLY
6338 | SEC_ALLOC
| SEC_LOAD
);
6340 subseg_set (save_seg
, save_subseg
);
6344 /* For ELF, this function serves one purpose: to setup the st_size
6345 field of STT_FUNC symbols. To do this, we need to scan the
6346 call_info structure list, determining st_size in one of two possible
6349 1. call_info->start_frag->fr_fix has the size of the fragment.
6350 This approach assumes that the function was built into a
6351 single fragment. This works for most cases, but might fail.
6352 For example, if there was a segment change in the middle of
6355 2. The st_size field is the difference in the addresses of the
6356 call_info->start_frag->fr_address field and the fr_address
6357 field of the next fragment with fr_type == rs_fill and
6361 elf_hppa_final_processing ()
6363 struct call_info
*call_info_pointer
;
6365 for (call_info_pointer
= call_info_root
;
6367 call_info_pointer
= call_info_pointer
->ci_next
)
6369 elf_symbol_type
*esym
6370 = (elf_symbol_type
*) call_info_pointer
->start_symbol
->bsym
;
6371 esym
->internal_elf_sym
.st_size
=
6372 S_GET_VALUE (call_info_pointer
->end_symbol
)
6373 - S_GET_VALUE (call_info_pointer
->start_symbol
) + 4;