1 /* BFD back-end for HP PA-RISC ELF files.
2 Copyright (C) 1990, 91, 92, 93, 94 Free Software Foundation, Inc.
6 Center for Software Science
7 Department of Computer Science
10 This file is part of BFD, the Binary File Descriptor library.
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
33 /* Note there isn't much error handling code in here yet. Unexpected
34 conditions are handled by just calling abort. FIXME damnit! */
36 /* ELF32/HPPA relocation support
38 This file contains ELF32/HPPA relocation support as specified
39 in the Stratus FTX/Golf Object File Format (SED-1762) dated
42 #include "elf32-hppa.h"
43 #include "aout/aout64.h"
44 #include "hppa_stubs.h"
46 /* The basic stub types supported. If/when shared libraries are
47 implemented some form of IMPORT and EXPORT stubs will be needed. */
55 /* This is a list of all the stubs for a particular BFD. */
57 typedef struct elf32_hppa_stub_name_list_struct
59 /* The symbol associated with this stub. */
61 /* Pointer to chain of all stub chains. */
62 struct elf32_hppa_stub_description_struct *stub_desc;
63 /* Pointer to the stub contents (eg instructions). */
65 /* Size of this stub? (in what units? FIXME). */
67 /* Pointer to the next stub entry in the chain. */
68 struct elf32_hppa_stub_name_list_struct *next;
69 } elf32_hppa_stub_name_list;
71 /* This is a linked list in which each entry describes all the
72 linker stubs for a particular bfd. */
74 typedef struct elf32_hppa_stub_description_struct
76 /* The next group of stubs. */
77 struct elf32_hppa_stub_description_struct *next;
78 /* Used to identify this group of stubs as belonging
79 to a particular bfd. */
81 /* FIXME: The stub section for this group of stubs? Is
82 this redundant with stub_listP->sym->section? */
84 /* FIXME: what the hell is this? */
85 unsigned relocs_allocated_cnt;
86 /* The current real size of the stubs (in bytes?). */
88 /* How much space we have allocated for stubs (in bytes?). */
89 unsigned allocated_size;
90 /* Pointer to the first available space for new stubs. */
92 /* Pointer to the beginning of the stubs. FIXME: Why an int *
93 above and a char * here? */
95 /* The list of stubs for this bfd. */
96 elf32_hppa_stub_name_list *stub_listP;
97 /* I guess we just carry this around for fun. */
98 struct bfd_link_info *link_info;
99 } elf32_hppa_stub_description;
103 #define RETURN_VALUE 1
105 /* The various argument relocations that may be performed.
106 Note GRX,GRY really means ARGX,ARGY. */
111 /* Relocate 32 bits from general to FP register. */
113 /* Relocate 64 bits from arg0,arg1 to FParg1. */
115 /* Relocate 64 bits from arg2,arg3 to FParg3. */
117 /* Relocate 32 bits from FP to general register. */
119 /* Relocate 64 bits from FParg1 to arg0,arg1. */
121 /* Relocate 64 bits from FParg3 to arg2,arg3. */
127 /* Where (what register type) is an argument comming from? */
130 /* Not in a register. */
132 /* In a general argument register. */
134 /* In right half of a FP argument register. */
136 /* In upper (left) half of a FP argument register. */
138 /* In general argument register pair 0 (arg0, arg1). */
140 /* In general argument register pair 1 (arg2, arg3). */
144 /* What is being relocated (eg which argument or the return value). */
147 ARG0, ARG1, ARG2, ARG3, RETVAL,
148 } arg_reloc_location;
150 /* Horizontal represents callee's argument location information, vertical
151 represents caller's argument location information. Value at a particular
152 X, Y location represents what (if any) argument relocation needs to
153 be performed to make caller and callee agree. */
154 static CONST arg_reloc_type mismatches[6][6] =
156 {NO_ARG_RELOC, NO_ARG_RELOC, NO_ARG_RELOC, NO_ARG_RELOC,
157 NO_ARG_RELOC, NO_ARG_RELOC},
158 {NO_ARG_RELOC, NO_ARG_RELOC, R_TO_FR, ARG_RELOC_ERR,
159 R01_TO_FR, ARG_RELOC_ERR},
160 {NO_ARG_RELOC, FR_TO_R, NO_ARG_RELOC, ARG_RELOC_ERR,
161 ARG_RELOC_ERR, ARG_RELOC_ERR},
162 {ARG_RELOC_ERR, ARG_RELOC_ERR, ARG_RELOC_ERR, ARG_RELOC_ERR,
163 ARG_RELOC_ERR, ARG_RELOC_ERR},
164 {NO_ARG_RELOC, FR_TO_R01, NO_ARG_RELOC, ARG_RELOC_ERR,
165 NO_ARG_RELOC, ARG_RELOC_ERR},
166 {NO_ARG_RELOC, FR_TO_R23, NO_ARG_RELOC, ARG_RELOC_ERR,
167 ARG_RELOC_ERR, NO_ARG_RELOC},
170 /* Likewise for the return value. */
171 static CONST arg_reloc_type retval_mismatches[6][6] =
173 {NO_ARG_RELOC, NO_ARG_RELOC, NO_ARG_RELOC, NO_ARG_RELOC,
174 NO_ARG_RELOC, NO_ARG_RELOC},
175 {NO_ARG_RELOC, NO_ARG_RELOC, FR_TO_R, ARG_RELOC_ERR,
176 FR_TO_R01, ARG_RELOC_ERR},
177 {NO_ARG_RELOC, R_TO_FR, NO_ARG_RELOC, ARG_RELOC_ERR,
178 ARG_RELOC_ERR, ARG_RELOC_ERR},
179 {ARG_RELOC_ERR, ARG_RELOC_ERR, ARG_RELOC_ERR, ARG_RELOC_ERR,
180 ARG_RELOC_ERR, ARG_RELOC_ERR},
181 {NO_ARG_RELOC, R01_TO_FR, NO_ARG_RELOC, ARG_RELOC_ERR,
182 NO_ARG_RELOC, ARG_RELOC_ERR},
183 {NO_ARG_RELOC, R23_TO_FR, NO_ARG_RELOC, ARG_RELOC_ERR,
184 ARG_RELOC_ERR, NO_ARG_RELOC},
187 /* Used for index mapping in symbol-extension sections. */
188 struct elf32_hppa_symextn_map_struct
196 static bfd_reloc_status_type hppa_elf_reloc
197 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
199 static unsigned long hppa_elf_relocate_insn
200 PARAMS ((bfd *, asection *, unsigned long, unsigned long, long,
201 long, unsigned long, unsigned long, unsigned long));
203 static void hppa_elf_relocate_unwind_table
204 PARAMS ((bfd *, PTR, unsigned long, long, long,
205 unsigned long, unsigned long));
207 static long get_symbol_value PARAMS ((asymbol *));
209 static bfd_reloc_status_type hppa_elf_reloc
210 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd*, char **));
212 static CONST reloc_howto_type * elf_hppa_reloc_type_lookup
213 PARAMS ((bfd_arch_info_type *, bfd_reloc_code_real_type));
215 static symext_entryS elf32_hppa_get_sym_extn PARAMS ((bfd *, asymbol *, int));
217 static elf32_hppa_stub_description * find_stubs PARAMS ((bfd *, asection *));
219 static elf32_hppa_stub_description * new_stub
220 PARAMS ((bfd *, asection *, struct bfd_link_info *));
222 static arg_reloc_type type_of_mismatch PARAMS ((int, int, int));
224 static elf32_hppa_stub_name_list * find_stub_by_name
225 PARAMS ((bfd *, asection *, char *));
227 static elf32_hppa_stub_name_list * add_stub_by_name
228 PARAMS ((bfd *, asection *, asymbol *, struct bfd_link_info *));
230 static void hppa_elf_stub_finish PARAMS ((bfd *));
232 static void hppa_elf_stub_reloc
233 PARAMS ((elf32_hppa_stub_description *, bfd *, asymbol **, int,
234 elf32_hppa_reloc_type));
236 static int hppa_elf_arg_reloc_needed_p
237 PARAMS ((bfd *, arelent *, arg_reloc_type [5], symext_entryS));
239 static asymbol * hppa_elf_build_linker_stub
240 PARAMS ((bfd *, bfd *, struct bfd_link_info *, arelent *,
241 arg_reloc_type [5], int, unsigned *, hppa_stub_type));
243 static void hppa_elf_create_stub_sec
244 PARAMS ((bfd *, bfd *, asection **, struct bfd_link_info *));
246 static int hppa_elf_long_branch_needed_p
247 PARAMS ((bfd *, asection *, arelent *, asymbol *, unsigned));
249 static boolean hppa_elf_set_section_contents
250 PARAMS ((bfd *, sec_ptr, PTR, file_ptr, bfd_size_type));
252 static void elf_info_to_howto
253 PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
255 static void elf32_hppa_backend_symbol_processing PARAMS ((bfd *, asymbol *));
257 static boolean elf32_hppa_backend_section_processing
258 PARAMS ((bfd *, Elf32_Internal_Shdr *));
260 static boolean elf32_hppa_backend_symbol_table_processing
261 PARAMS ((bfd *, elf_symbol_type *, int));
263 static boolean elf32_hppa_backend_section_from_shdr
264 PARAMS ((bfd *, Elf32_Internal_Shdr *, char *));
266 static boolean elf32_hppa_backend_fake_sections
267 PARAMS ((bfd *, Elf_Internal_Shdr *, asection *));
269 static boolean elf32_hppa_backend_section_from_bfd_section
270 PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *, int *));
272 /* ELF/PA relocation howto entries. */
274 static reloc_howto_type elf_hppa_howto_table[ELF_HOWTO_TABLE_SIZE] =
276 {R_HPPA_NONE, 0, 3, 19, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_NONE"},
277 {R_HPPA_32, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_32"},
278 {R_HPPA_11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_11"},
279 {R_HPPA_14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_14"},
280 {R_HPPA_17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_17"},
281 {R_HPPA_L21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_L21"},
282 {R_HPPA_R11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_R11"},
283 {R_HPPA_R14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_R14"},
284 {R_HPPA_R17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_R17"},
285 {R_HPPA_LS21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_LS21"},
286 {R_HPPA_RS11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RS11"},
287 {R_HPPA_RS14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RS14"},
288 {R_HPPA_RS17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RS17"},
289 {R_HPPA_LD21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_LD21"},
290 {R_HPPA_RD11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RD11"},
291 {R_HPPA_RD14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RD14"},
292 {R_HPPA_RD17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RD17"},
293 {R_HPPA_LR21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_LR21"},
294 {R_HPPA_RR14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RR14"},
295 {R_HPPA_RR17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RR17"},
296 {R_HPPA_GOTOFF_11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_11"},
297 {R_HPPA_GOTOFF_14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_14"},
298 {R_HPPA_GOTOFF_L21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_L21"},
299 {R_HPPA_GOTOFF_R11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_R11"},
300 {R_HPPA_GOTOFF_R14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_R14"},
301 {R_HPPA_GOTOFF_LS21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_LS21"},
302 {R_HPPA_GOTOFF_RS11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_RS11"},
303 {R_HPPA_GOTOFF_RS14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_RS14"},
304 {R_HPPA_GOTOFF_LD21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_LD21"},
305 {R_HPPA_GOTOFF_RD11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_RD11"},
306 {R_HPPA_GOTOFF_RD14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_RD14"},
307 {R_HPPA_GOTOFF_LR21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_LR21"},
308 {R_HPPA_GOTOFF_RR14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_RR14"},
309 {R_HPPA_ABS_CALL_11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_11"},
310 {R_HPPA_ABS_CALL_14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_14"},
311 {R_HPPA_ABS_CALL_17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_17"},
312 {R_HPPA_ABS_CALL_L21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_L21"},
313 {R_HPPA_ABS_CALL_R11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_R11"},
314 {R_HPPA_ABS_CALL_R14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_R14"},
315 {R_HPPA_ABS_CALL_R17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_R17"},
316 {R_HPPA_ABS_CALL_LS21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_LS21"},
317 {R_HPPA_ABS_CALL_RS11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RS11"},
318 {R_HPPA_ABS_CALL_RS14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RS14"},
319 {R_HPPA_ABS_CALL_RS17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RS17"},
320 {R_HPPA_ABS_CALL_LD21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_LD21"},
321 {R_HPPA_ABS_CALL_RD11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RD11"},
322 {R_HPPA_ABS_CALL_RD14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RD14"},
323 {R_HPPA_ABS_CALL_RD17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RD17"},
324 {R_HPPA_ABS_CALL_LR21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_LR21"},
325 {R_HPPA_ABS_CALL_RR14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RR14"},
326 {R_HPPA_ABS_CALL_RR17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RR17"},
327 {R_HPPA_PCREL_CALL_11, 0, 3, 11, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_11"},
328 {R_HPPA_PCREL_CALL_14, 0, 3, 14, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_14"},
329 {R_HPPA_PCREL_CALL_17, 0, 3, 17, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_17"},
330 {R_HPPA_PCREL_CALL_12, 0, 3, 12, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_12"},
331 {R_HPPA_PCREL_CALL_L21, 0, 3, 21, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_L21"},
332 {R_HPPA_PCREL_CALL_R11, 0, 3, 11, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_R11"},
333 {R_HPPA_PCREL_CALL_R14, 0, 3, 14, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_R14"},
334 {R_HPPA_PCREL_CALL_R17, 0, 3, 17, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_R17"},
335 {R_HPPA_PCREL_CALL_LS21, 0, 3, 21, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_LS21"},
336 {R_HPPA_PCREL_CALL_RS11, 0, 3, 11, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RS11"},
337 {R_HPPA_PCREL_CALL_RS14, 0, 3, 14, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RS14"},
338 {R_HPPA_PCREL_CALL_RS17, 0, 3, 17, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RS17"},
339 {R_HPPA_PCREL_CALL_LD21, 0, 3, 21, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_LD21"},
340 {R_HPPA_PCREL_CALL_RD11, 0, 3, 11, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RD11"},
341 {R_HPPA_PCREL_CALL_RD14, 0, 3, 14, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RD14"},
342 {R_HPPA_PCREL_CALL_RD17, 0, 3, 17, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RD17"},
343 {R_HPPA_PCREL_CALL_LR21, 0, 3, 21, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_LR21"},
344 {R_HPPA_PCREL_CALL_RR14, 0, 3, 14, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RR14"},
345 {R_HPPA_PCREL_CALL_RR17, 0, 3, 17, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RR17"},
346 {R_HPPA_PLABEL_32, 0, 3, 32, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_32"},
347 {R_HPPA_PLABEL_11, 0, 3, 11, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_11"},
348 {R_HPPA_PLABEL_14, 0, 3, 14, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_14"},
349 {R_HPPA_PLABEL_L21, 0, 3, 21, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_L21"},
350 {R_HPPA_PLABEL_R11, 0, 3, 11, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_R11"},
351 {R_HPPA_PLABEL_R14, 0, 3, 14, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_R14"},
352 {R_HPPA_DLT_32, 0, 3, 32, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_32"},
353 {R_HPPA_DLT_11, 0, 3, 11, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_11"},
354 {R_HPPA_DLT_14, 0, 3, 14, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_14"},
355 {R_HPPA_DLT_L21, 0, 3, 21, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_L21"},
356 {R_HPPA_DLT_R11, 0, 3, 11, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_R11"},
357 {R_HPPA_DLT_R14, 0, 3, 14, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_R14"},
358 {R_HPPA_UNWIND_ENTRY, 0, 3, 32, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_UNWIND_ENTRY"},
359 {R_HPPA_UNWIND_ENTRIES, 0, 3, 32, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_UNWIND_ENTRIES"},
360 {R_HPPA_PUSH_CONST, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_CONST"},
361 {R_HPPA_PUSH_PC, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_PC"},
362 {R_HPPA_PUSH_SYM, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_SYM"},
363 {R_HPPA_PUSH_GOTOFF, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_GOTOFF"},
364 {R_HPPA_PUSH_ABS_CALL, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_ABS_CALL"},
365 {R_HPPA_PUSH_PCREL_CALL, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_PCREL_CALL"},
366 {R_HPPA_PUSH_PLABEL, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_PLABEL"},
367 {R_HPPA_MAX, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_MAX"},
368 {R_HPPA_MIN, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_MIN"},
369 {R_HPPA_ADD, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ADD"},
370 {R_HPPA_SUB, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_SUB"},
371 {R_HPPA_MULT, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_MULT"},
372 {R_HPPA_DIV, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_DIV"},
373 {R_HPPA_MOD, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_MOD"},
374 {R_HPPA_AND, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_AND"},
375 {R_HPPA_OR, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_OR"},
376 {R_HPPA_XOR, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_XOR"},
377 {R_HPPA_NOT, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_NOT"},
378 {R_HPPA_LSHIFT, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_LSHIFT"},
379 {R_HPPA_ARITH_RSHIFT, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ARITH_RSHIFT"},
380 {R_HPPA_LOGIC_RSHIFT, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_LOGIC_RSHIFT"},
381 {R_HPPA_EXPR_F, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_L"},
382 {R_HPPA_EXPR_L, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_L"},
383 {R_HPPA_EXPR_R, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_R"},
384 {R_HPPA_EXPR_LS, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_LS"},
385 {R_HPPA_EXPR_RS, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_RS"},
386 {R_HPPA_EXPR_LD, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_LD"},
387 {R_HPPA_EXPR_RD, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_RD"},
388 {R_HPPA_EXPR_LR, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_LR"},
389 {R_HPPA_EXPR_RR, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_RR"},
390 {R_HPPA_EXPR_32, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_32"},
391 {R_HPPA_EXPR_21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_21"},
392 {R_HPPA_EXPR_11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_11"},
393 {R_HPPA_EXPR_14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_14"},
394 {R_HPPA_EXPR_17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_17"},
395 {R_HPPA_EXPR_12, 0, 3, 12, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_12"},
396 {R_HPPA_STUB_CALL_17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_STUB_CALL_17"},
397 {R_HPPA_UNIMPLEMENTED, 0, 0, 0, false, 0, complain_overflow_dont, NULL, "R_HPPA_UNIMPLEMENTED"},
400 static symext_chainS *symext_rootP;
401 static symext_chainS *symext_lastP;
402 static boolean symext_chain_built;
403 static long global_value;
404 static long GOT_value;
405 static asymbol *global_symbol;
406 static int global_sym_defined;
407 static symext_entryS *symextn_contents;
408 static unsigned int symextn_contents_real_size;
409 static elf32_hppa_stub_description *elf_hppa_stub_rootP;
410 static boolean stubs_finished = false;
411 static struct elf32_hppa_symextn_map_struct *elf32_hppa_symextn_map;
412 static int elf32_hppa_symextn_map_size;
414 static char *linker_stubs = NULL;
415 static int linker_stubs_size = 0;
416 static int linker_stubs_max_size = 0;
417 #define STUB_ALLOC_INCR 100
418 #define STUB_SYM_BUFFER_INC 5
420 /* Relocate the given INSN given the various input parameters.
422 FIXME: endianness and sizeof (long) issues abound here. */
425 hppa_elf_relocate_insn (abfd, input_sect, insn, address, sym_value,
426 r_addend, r_format, r_field, pcrel)
428 asection *input_sect;
430 unsigned long address;
433 unsigned long r_format;
434 unsigned long r_field;
437 unsigned char opcode = get_opcode (insn);
458 constant_value = HPPA_R_CONSTANT (r_addend);
461 sym_value -= address;
463 sym_value = hppa_field_adjust (sym_value, constant_value, r_field);
464 return hppa_rebuild_insn (abfd, insn, sym_value, r_format);
469 arg_reloc = HPPA_R_ARG_RELOC (r_addend);
471 /* XXX computing constant_value is not needed??? */
472 constant_value = assemble_17 ((insn & 0x001f0000) >> 16,
473 (insn & 0x00001ffc) >> 2,
476 constant_value = (constant_value << 15) >> 15;
480 address + input_sect->output_offset
481 + input_sect->output_section->vma;
482 sym_value = hppa_field_adjust (sym_value, -8, r_field);
485 sym_value = hppa_field_adjust (sym_value, constant_value, r_field);
487 return hppa_rebuild_insn (abfd, insn, sym_value >> 2, r_format);
492 constant_value = HPPA_R_CONSTANT (r_addend);
495 sym_value -= address;
497 return hppa_field_adjust (sym_value, constant_value, r_field);
504 /* Relocate a single unwind entry, or an entire table of them. */
507 hppa_elf_relocate_unwind_table (abfd, data, address, sym_value,
508 r_addend, r_type, r_field)
511 unsigned long address;
514 unsigned long r_type;
515 unsigned long r_field;
517 bfd_byte *hit_data = address + (bfd_byte *) data;
520 long relocated_value;
525 case R_HPPA_UNWIND_ENTRY:
526 /* Need to relocate the first two 32bit fields in the unwind. They
527 correspond to a function's start and end address. */
528 start_offset = bfd_get_32 (abfd, hit_data);
529 relocated_value = hppa_field_adjust (sym_value, start_offset, r_field);
530 bfd_put_32 (abfd, relocated_value, hit_data);
532 hit_data += sizeof (unsigned long);
533 end_offset = bfd_get_32 (abfd, hit_data);
534 relocated_value = hppa_field_adjust (sym_value, end_offset, r_field);
535 bfd_put_32 (abfd, relocated_value, hit_data);
538 case R_HPPA_UNWIND_ENTRIES:
539 /* Relocate a mass of unwind entires. The count is passed in r_addend
540 (who's braindamaged idea was this anyway? */
541 for (i = 0; i < r_addend; i++, hit_data += 3 * sizeof (unsigned long))
543 unsigned int adjustment;
544 /* Adjust the first 32bit field in the unwind entry. It's
545 the starting offset of a function. */
546 start_offset = bfd_get_32 (abfd, hit_data);
547 bfd_put_32 (abfd, sym_value, hit_data);
548 adjustment = sym_value - start_offset;
550 /* Now adjust the second 32bit field, it's the ending offset
552 hit_data += sizeof (unsigned long);
553 end_offset = adjustment + bfd_get_32 (abfd, hit_data);
554 bfd_put_32 (abfd, end_offset, hit_data);
556 /* Prepare for the next iteration. */
557 start_offset = bfd_get_32 (abfd,
558 hit_data + 3 * sizeof (unsigned long));
559 sym_value = start_offset + adjustment;
568 /* Return the relocated value of the given symbol. */
571 get_symbol_value (symbol)
575 || symbol->section == &bfd_com_section)
578 return symbol->value + symbol->section->output_section->vma
579 + symbol->section->output_offset;
582 /* Return one (or more) BFD relocations which implement the base
583 relocation with modifications based on format and field. */
585 elf32_hppa_reloc_type **
586 hppa_elf_gen_reloc_type (abfd, base_type, format, field)
588 elf32_hppa_reloc_type base_type;
592 elf32_hppa_reloc_type *finaltype;
593 elf32_hppa_reloc_type **final_types;
595 /* Allocate slots for the BFD relocation. */
596 final_types = (elf32_hppa_reloc_type **)
597 bfd_alloc_by_size_t (abfd, sizeof (elf32_hppa_reloc_type *) * 2);
598 BFD_ASSERT (final_types != 0); /* FIXME */
600 /* Allocate space for the relocation itself. */
601 finaltype = (elf32_hppa_reloc_type *)
602 bfd_alloc_by_size_t (abfd, sizeof (elf32_hppa_reloc_type));
603 BFD_ASSERT (finaltype != 0); /* FIXME */
605 /* Some reasonable defaults. */
606 final_types[0] = finaltype;
607 final_types[1] = NULL;
609 #define final_type finaltype[0]
611 final_type = base_type;
613 /* Just a tangle of nested switch statements to deal with the braindamage
614 that a different field selector means a completely different relocation
625 final_type = R_HPPA_11;
628 final_type = R_HPPA_R11;
631 final_type = R_HPPA_RS11;
634 final_type = R_HPPA_RD11;
637 final_type = R_HPPA_PLABEL_11;
640 final_type = R_HPPA_PLABEL_R11;
643 final_type = R_HPPA_DLT_11;
646 final_type = R_HPPA_DLT_R11;
658 final_type = R_HPPA_R14;
661 final_type = R_HPPA_RS14;
664 final_type = R_HPPA_RD14;
667 final_type = R_HPPA_RR14;
670 final_type = R_HPPA_PLABEL_14;
673 final_type = R_HPPA_PLABEL_R14;
676 final_type = R_HPPA_DLT_14;
679 final_type = R_HPPA_DLT_R14;
691 final_type = R_HPPA_17;
694 final_type = R_HPPA_R17;
697 final_type = R_HPPA_RS17;
700 final_type = R_HPPA_RD17;
703 final_type = R_HPPA_RR17;
715 final_type = R_HPPA_L21;
718 final_type = R_HPPA_LS21;
721 final_type = R_HPPA_LD21;
724 final_type = R_HPPA_LR21;
727 final_type = R_HPPA_PLABEL_L21;
730 final_type = R_HPPA_PLABEL_L21;
742 final_type = R_HPPA_32;
745 final_type = R_HPPA_PLABEL_32;
748 final_type = R_HPPA_DLT_32;
770 final_type = R_HPPA_GOTOFF_R11;
773 final_type = R_HPPA_GOTOFF_RS11;
776 final_type = R_HPPA_GOTOFF_RD11;
779 final_type = R_HPPA_GOTOFF_11;
791 final_type = R_HPPA_GOTOFF_R14;
794 final_type = R_HPPA_GOTOFF_RS14;
797 final_type = R_HPPA_GOTOFF_RD14;
800 final_type = R_HPPA_GOTOFF_RR14;
803 final_type = R_HPPA_GOTOFF_14;
815 final_type = R_HPPA_GOTOFF_L21;
818 final_type = R_HPPA_GOTOFF_LS21;
821 final_type = R_HPPA_GOTOFF_LD21;
824 final_type = R_HPPA_GOTOFF_LR21;
839 case R_HPPA_PCREL_CALL:
846 final_type = R_HPPA_PCREL_CALL_R11;
849 final_type = R_HPPA_PCREL_CALL_RS11;
852 final_type = R_HPPA_PCREL_CALL_RD11;
855 final_type = R_HPPA_PCREL_CALL_11;
867 final_type = R_HPPA_PCREL_CALL_R14;
870 final_type = R_HPPA_PCREL_CALL_RS14;
873 final_type = R_HPPA_PCREL_CALL_RD14;
876 final_type = R_HPPA_PCREL_CALL_RR14;
879 final_type = R_HPPA_PCREL_CALL_14;
891 final_type = R_HPPA_PCREL_CALL_R17;
894 final_type = R_HPPA_PCREL_CALL_RS17;
897 final_type = R_HPPA_PCREL_CALL_RD17;
900 final_type = R_HPPA_PCREL_CALL_RR17;
903 final_type = R_HPPA_PCREL_CALL_17;
915 final_type = R_HPPA_PCREL_CALL_L21;
918 final_type = R_HPPA_PCREL_CALL_LS21;
921 final_type = R_HPPA_PCREL_CALL_LD21;
924 final_type = R_HPPA_PCREL_CALL_LR21;
946 final_type = R_HPPA_PLABEL_11;
949 final_type = R_HPPA_PLABEL_R11;
961 final_type = R_HPPA_PLABEL_14;
964 final_type = R_HPPA_PLABEL_R14;
976 final_type = R_HPPA_PLABEL_L21;
988 final_type = R_HPPA_PLABEL_32;
1002 case R_HPPA_ABS_CALL:
1009 final_type = R_HPPA_ABS_CALL_R11;
1012 final_type = R_HPPA_ABS_CALL_RS11;
1015 final_type = R_HPPA_ABS_CALL_RD11;
1018 final_type = R_HPPA_ABS_CALL_11;
1030 final_type = R_HPPA_ABS_CALL_R14;
1033 final_type = R_HPPA_ABS_CALL_RS14;
1036 final_type = R_HPPA_ABS_CALL_RD14;
1039 final_type = R_HPPA_ABS_CALL_RR14;
1042 final_type = R_HPPA_ABS_CALL_14;
1054 final_type = R_HPPA_ABS_CALL_R17;
1057 final_type = R_HPPA_ABS_CALL_RS17;
1060 final_type = R_HPPA_ABS_CALL_RD17;
1063 final_type = R_HPPA_ABS_CALL_RR17;
1066 final_type = R_HPPA_ABS_CALL_17;
1078 final_type = R_HPPA_ABS_CALL_L21;
1081 final_type = R_HPPA_ABS_CALL_LS21;
1084 final_type = R_HPPA_ABS_CALL_LD21;
1087 final_type = R_HPPA_ABS_CALL_LR21;
1103 final_type = R_HPPA_UNWIND_ENTRY;
1107 case R_HPPA_COMPLEX:
1108 case R_HPPA_COMPLEX_PCREL_CALL:
1109 case R_HPPA_COMPLEX_ABS_CALL:
1110 /* The code originally here was horribly broken, and apparently
1111 never used. Zap it. When we need complex relocations rewrite
1117 final_type = base_type;
1127 /* Actually perform a relocation. */
1129 static bfd_reloc_status_type
1130 hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
1133 arelent *reloc_entry;
1136 asection *input_section;
1138 char **error_message;
1142 unsigned long addr = reloc_entry->address;
1143 bfd_byte *hit_data = addr + (bfd_byte *) data;
1144 unsigned long r_type = reloc_entry->howto->type;
1145 unsigned long r_field = e_fsel;
1146 boolean r_pcrel = reloc_entry->howto->pc_relative;
1147 unsigned r_format = reloc_entry->howto->bitsize;
1148 long r_addend = reloc_entry->addend;
1150 /* If only performing a partial link, get out early. */
1153 reloc_entry->address += input_section->output_offset;
1154 return bfd_reloc_ok;
1157 /* If performing final link and the symbol we're relocating against
1158 is undefined, then return an error. */
1159 if (symbol_in && symbol_in->section == &bfd_und_section)
1160 return bfd_reloc_undefined;
1162 /* Get the final relocated value. */
1163 sym_value = get_symbol_value (symbol_in);
1165 /* Compute the value of $global$.
1166 FIXME: None of this should be necessary. $global$ is just a
1167 marker and shouldn't really figure into these computations.
1169 Once that's fixed we'll need to teach this backend to change
1170 DP-relative relocations involving symbols in the text section
1171 to be simple absolute relocations. */
1172 if (!global_sym_defined)
1176 global_value = (global_symbol->value
1177 + global_symbol->section->output_section->vma
1178 + global_symbol->section->output_offset);
1179 GOT_value = global_value;
1180 global_sym_defined++;
1184 /* Get the instruction word. */
1185 insn = bfd_get_32 (abfd, hit_data);
1187 /* Relocate the value based on one of the basic relocation types
1189 basic_type_1: relocation is relative to $global$
1190 basic_type_2: relocation is relative to the current GOT
1191 basic_type_3: relocation is an absolute call
1192 basic_type_4: relocation is an PC-relative call
1193 basic_type_5: relocation is plabel reference
1194 basic_type_6: relocation is an unwind table relocation
1195 extended_type: unimplemented */
1202 /* Handle all the basic type 1 relocations. */
1208 goto do_basic_type_1;
1211 goto do_basic_type_1;
1216 goto do_basic_type_1;
1219 goto do_basic_type_1;
1224 goto do_basic_type_1;
1227 goto do_basic_type_1;
1232 goto do_basic_type_1;
1235 goto do_basic_type_1;
1241 insn = hppa_elf_relocate_insn (abfd, input_section, insn, addr,
1242 sym_value, r_addend, r_format,
1246 /* Handle all the basic type 2 relocations. */
1247 case R_HPPA_GOTOFF_11:
1248 case R_HPPA_GOTOFF_14:
1250 goto do_basic_type_2;
1251 case R_HPPA_GOTOFF_L21:
1253 goto do_basic_type_2;
1254 case R_HPPA_GOTOFF_R11:
1255 case R_HPPA_GOTOFF_R14:
1257 goto do_basic_type_2;
1258 case R_HPPA_GOTOFF_LS21:
1260 goto do_basic_type_2;
1261 case R_HPPA_GOTOFF_RS11:
1262 case R_HPPA_GOTOFF_RS14:
1264 goto do_basic_type_2;
1265 case R_HPPA_GOTOFF_LD21:
1267 goto do_basic_type_2;
1268 case R_HPPA_GOTOFF_RD11:
1269 case R_HPPA_GOTOFF_RD14:
1271 goto do_basic_type_2;
1272 case R_HPPA_GOTOFF_LR21:
1274 goto do_basic_type_2;
1275 case R_HPPA_GOTOFF_RR14:
1279 sym_value -= GOT_value;
1280 insn = hppa_elf_relocate_insn (abfd, input_section, insn, addr,
1281 sym_value, r_addend, r_format,
1285 /* Handle all the basic type 3 relocations. */
1286 case R_HPPA_ABS_CALL_11:
1287 case R_HPPA_ABS_CALL_14:
1288 case R_HPPA_ABS_CALL_17:
1290 goto do_basic_type_3;
1291 case R_HPPA_ABS_CALL_L21:
1293 goto do_basic_type_3;
1294 case R_HPPA_ABS_CALL_R11:
1295 case R_HPPA_ABS_CALL_R14:
1296 case R_HPPA_ABS_CALL_R17:
1298 goto do_basic_type_3;
1299 case R_HPPA_ABS_CALL_LS21:
1301 goto do_basic_type_3;
1302 case R_HPPA_ABS_CALL_RS11:
1303 case R_HPPA_ABS_CALL_RS14:
1304 case R_HPPA_ABS_CALL_RS17:
1306 goto do_basic_type_3;
1307 case R_HPPA_ABS_CALL_LD21:
1309 goto do_basic_type_3;
1310 case R_HPPA_ABS_CALL_RD11:
1311 case R_HPPA_ABS_CALL_RD14:
1312 case R_HPPA_ABS_CALL_RD17:
1314 goto do_basic_type_3;
1315 case R_HPPA_ABS_CALL_LR21:
1317 goto do_basic_type_3;
1318 case R_HPPA_ABS_CALL_RR14:
1319 case R_HPPA_ABS_CALL_RR17:
1323 insn = hppa_elf_relocate_insn (abfd, input_section, insn, addr,
1324 sym_value, r_addend, r_format,
1328 /* Handle all the basic type 4 relocations. */
1329 case R_HPPA_PCREL_CALL_11:
1330 case R_HPPA_PCREL_CALL_14:
1331 case R_HPPA_PCREL_CALL_17:
1333 goto do_basic_type_4;
1334 case R_HPPA_PCREL_CALL_L21:
1336 goto do_basic_type_4;
1337 case R_HPPA_PCREL_CALL_R11:
1338 case R_HPPA_PCREL_CALL_R14:
1339 case R_HPPA_PCREL_CALL_R17:
1341 goto do_basic_type_4;
1342 case R_HPPA_PCREL_CALL_LS21:
1344 goto do_basic_type_4;
1345 case R_HPPA_PCREL_CALL_RS11:
1346 case R_HPPA_PCREL_CALL_RS14:
1347 case R_HPPA_PCREL_CALL_RS17:
1349 goto do_basic_type_4;
1350 case R_HPPA_PCREL_CALL_LD21:
1352 goto do_basic_type_4;
1353 case R_HPPA_PCREL_CALL_RD11:
1354 case R_HPPA_PCREL_CALL_RD14:
1355 case R_HPPA_PCREL_CALL_RD17:
1357 goto do_basic_type_4;
1358 case R_HPPA_PCREL_CALL_LR21:
1360 goto do_basic_type_4;
1361 case R_HPPA_PCREL_CALL_RR14:
1362 case R_HPPA_PCREL_CALL_RR17:
1366 insn = hppa_elf_relocate_insn (abfd, input_section, insn, addr,
1367 sym_value, r_addend, r_format,
1371 /* Handle all the basic type 5 relocations. */
1372 case R_HPPA_PLABEL_32:
1373 case R_HPPA_PLABEL_11:
1374 case R_HPPA_PLABEL_14:
1376 goto do_basic_type_5;
1377 case R_HPPA_PLABEL_L21:
1379 goto do_basic_type_5;
1380 case R_HPPA_PLABEL_R11:
1381 case R_HPPA_PLABEL_R14:
1384 insn = hppa_elf_relocate_insn (abfd, input_section, insn, addr,
1385 sym_value, r_addend, r_format,
1389 /* Handle all basic type 6 relocations. */
1390 case R_HPPA_UNWIND_ENTRY:
1391 case R_HPPA_UNWIND_ENTRIES:
1392 hppa_elf_relocate_unwind_table (abfd, data, addr,
1393 sym_value, r_addend,
1395 return bfd_reloc_ok;
1397 /* This is a linker internal relocation. */
1398 case R_HPPA_STUB_CALL_17:
1399 /* This relocation is for a branch to a long branch stub.
1400 Change instruction to a BLE,N. It may also be necessary
1401 to interchange the branch and its delay slot.
1402 The original instruction stream is
1404 bl <foo>,r ; call foo using register r as
1405 ; the return pointer
1406 XXX ; delay slot instruction
1408 The new instruction stream will be:
1410 XXX ; delay slot instruction
1411 ble <foo_stub> ; call the long call stub for foo
1412 ; using r31 as the return pointer
1414 This braindamage is necessary because the compiler may put
1415 an instruction which uses %r31 in the delay slot of the original
1416 call. By changing the call instruction from a "bl" to a "ble"
1417 %r31 gets clobbered before the delay slot executes. This
1418 also means the stub has to play funny games to make sure
1419 we return to the instruction just after the BLE rather than
1420 two instructions after the BLE.
1422 We do not interchange the branch and delay slot if the delay
1423 slot was already nullified, or if the instruction in the delay
1424 slot modifies the return pointer to avoid an unconditional
1425 jump after the call returns (GCC optimization).
1427 None of this horseshit would be necessary if we put the
1428 stubs between functions and just redirected the "bl" to
1429 the stub. Live and learn. */
1431 /* Is this instruction nullified? (does this ever happen?) */
1434 insn = BLE_N_XXX_0_0;
1435 bfd_put_32 (abfd, insn, hit_data);
1436 r_type = R_HPPA_ABS_CALL_17;
1438 insn = hppa_elf_relocate_insn (abfd, input_section, insn,
1439 addr, sym_value, r_addend,
1440 r_format, r_field, r_pcrel);
1444 /* So much for the trivial case... */
1445 unsigned long old_delay_slot_insn = bfd_get_32 (abfd, hit_data + 4);
1446 unsigned rtn_reg = (insn & 0x03e00000) >> 21;
1448 if (get_opcode (old_delay_slot_insn) == LDO)
1450 unsigned ldo_src_reg = (old_delay_slot_insn & 0x03e00000) >> 21;
1451 unsigned ldo_target_reg = (old_delay_slot_insn & 0x001f0000) >> 16;
1453 /* If the target of the LDO is the same as the return
1454 register then there is no reordering. We can leave the
1455 instuction as a non-nullified BLE in this case.
1457 FIXME: This test looks wrong. If we had a ble using
1458 ldo_target_reg as the *source* we'd fuck this up. */
1459 if (ldo_target_reg == rtn_reg)
1461 unsigned long new_delay_slot_insn = old_delay_slot_insn;
1463 BFD_ASSERT (ldo_src_reg == ldo_target_reg);
1464 new_delay_slot_insn &= 0xfc00ffff;
1465 new_delay_slot_insn |= ((31 << 21) | (31 << 16));
1466 bfd_put_32 (abfd, new_delay_slot_insn, hit_data + 4);
1468 r_type = R_HPPA_ABS_CALL_17;
1470 insn = hppa_elf_relocate_insn (abfd, input_section, insn,
1471 addr, sym_value, r_addend,
1472 r_format, r_field, r_pcrel);
1473 bfd_put_32 (abfd, insn, hit_data);
1474 return bfd_reloc_ok;
1476 else if (rtn_reg == 31)
1478 /* The return register is r31, so this is a millicode
1479 call. Do not perform any instruction reordering. */
1481 r_type = R_HPPA_ABS_CALL_17;
1483 insn = hppa_elf_relocate_insn (abfd, input_section, insn,
1487 bfd_put_32 (abfd, insn, hit_data);
1488 return bfd_reloc_ok;
1492 /* Check to see if the delay slot instruction has a
1493 relocation. If so, we need to change the address
1494 field of it because the instruction it relocates
1495 is going to be moved. Oh what a mess. */
1496 arelent * next_reloc_entry = reloc_entry+1;
1498 if (next_reloc_entry->address == reloc_entry->address + 4)
1499 next_reloc_entry->address -= 4;
1501 insn = old_delay_slot_insn;
1502 bfd_put_32 (abfd, insn, hit_data);
1503 insn = BLE_N_XXX_0_0;
1504 bfd_put_32 (abfd, insn, hit_data + 4);
1505 r_type = R_HPPA_ABS_CALL_17;
1507 insn = hppa_elf_relocate_insn (abfd, input_section, insn,
1509 sym_value, r_addend,
1510 r_format, r_field, r_pcrel);
1511 bfd_put_32 (abfd, insn, hit_data + 4);
1512 return bfd_reloc_ok;
1515 /* Same comments as above regarding incorrect test. */
1516 else if (rtn_reg == 31)
1518 /* The return register is r31, so this is a millicode call.
1519 Perform no instruction reordering in this case. */
1521 r_type = R_HPPA_ABS_CALL_17;
1523 insn = hppa_elf_relocate_insn (abfd, input_section, insn,
1527 bfd_put_32 (abfd, insn, hit_data);
1528 return bfd_reloc_ok;
1532 /* Check to see if the delay slot instruction has a
1533 relocation. If so, we need to change its address
1534 field because the instruction it relocates is going
1536 arelent * next_reloc_entry = reloc_entry+1;
1538 if (next_reloc_entry->address == reloc_entry->address + 4)
1539 next_reloc_entry->address -= 4;
1541 insn = old_delay_slot_insn;
1542 bfd_put_32 (abfd, insn, hit_data);
1543 insn = BLE_N_XXX_0_0;
1544 bfd_put_32 (abfd, insn, hit_data + 4);
1545 r_type = R_HPPA_ABS_CALL_17;
1547 insn = hppa_elf_relocate_insn (abfd, input_section, insn,
1548 addr + 4, sym_value,
1551 bfd_put_32 (abfd, insn, hit_data + 4);
1552 return bfd_reloc_ok;
1557 /* Something we don't know how to handle. */
1559 *error_message = (char *) "Unrecognized reloc";
1560 return bfd_reloc_notsupported;
1563 /* Update the instruction word. */
1564 bfd_put_32 (abfd, insn, hit_data);
1565 return (bfd_reloc_ok);
1568 /* Return the address of the howto table entry to perform the CODE
1569 relocation for an ARCH machine. */
1571 static CONST reloc_howto_type *
1572 elf_hppa_reloc_type_lookup (arch, code)
1573 bfd_arch_info_type *arch;
1574 bfd_reloc_code_real_type code;
1576 if ((int) code < (int) R_HPPA_UNIMPLEMENTED)
1578 BFD_ASSERT ((int) elf_hppa_howto_table[(int) code].type == (int) code);
1579 return &elf_hppa_howto_table[(int) code];
1585 /* Update the symbol extention chain to include the symbol pointed to
1586 by SYMBOLP if SYMBOLP is a function symbol. Used internally and by GAS. */
1589 elf_hppa_tc_symbol (abfd, symbolP, sym_idx, symext_root, symext_last)
1591 elf_symbol_type *symbolP;
1593 symext_chainS **symext_root;
1594 symext_chainS **symext_last;
1596 symext_chainS *symextP;
1597 unsigned int arg_reloc;
1599 /* Only functions can have argument relocations. */
1600 if (!(symbolP->symbol.flags & BSF_FUNCTION))
1603 arg_reloc = symbolP->tc_data.hppa_arg_reloc;
1605 /* If there are no argument relocation bits, then no relocation is
1606 necessary. Do not add this to the symextn section. */
1610 /* Allocate memory and initialize this entry. */
1611 symextP = (symext_chainS *) bfd_alloc (abfd, sizeof (symext_chainS) * 2);
1614 bfd_set_error (bfd_error_no_memory);
1615 abort(); /* FIXME */
1618 symextP[0].entry = ELF32_HPPA_SX_WORD (HPPA_SXT_SYMNDX, sym_idx);
1619 symextP[0].next = &symextP[1];
1621 symextP[1].entry = ELF32_HPPA_SX_WORD (HPPA_SXT_ARG_RELOC, arg_reloc);
1622 symextP[1].next = NULL;
1624 /* Now update the chain itself so it can be walked later to build
1625 the symbol extension section. */
1626 if (*symext_root == NULL)
1628 *symext_root = &symextP[0];
1629 *symext_last = &symextP[1];
1633 (*symext_last)->next = &symextP[0];
1634 *symext_last = &symextP[1];
1638 /* Build the symbol extension section. Used internally and by GAS. */
1641 elf_hppa_tc_make_sections (abfd, symext_root)
1643 symext_chainS *symext_root;
1645 symext_chainS *symextP;
1647 asection *symextn_sec;
1649 /* FIXME: Huh? I don't see what this is supposed to do for us. */
1650 hppa_elf_stub_finish (abfd);
1652 /* If there are no entries in the symbol extension chain, then
1653 there is no symbol extension section. */
1654 if (symext_root == NULL)
1657 /* Count the number of entries on the chain. */
1658 for (n = 0, symextP = symext_root; symextP; symextP = symextP->next, ++n)
1661 /* Create the symbol extension section and set some appropriate
1663 size = sizeof (symext_entryS) * n;
1664 symextn_sec = bfd_get_section_by_name (abfd, SYMEXTN_SECTION_NAME);
1665 if (symextn_sec == (asection *) 0)
1667 symextn_sec = bfd_make_section (abfd, SYMEXTN_SECTION_NAME);
1668 bfd_set_section_flags (abfd,
1670 SEC_LOAD | SEC_HAS_CONTENTS | SEC_DATA);
1671 symextn_sec->output_section = symextn_sec;
1672 symextn_sec->output_offset = 0;
1673 bfd_set_section_alignment (abfd, symextn_sec, 2);
1675 bfd_set_section_size (abfd, symextn_sec, symextn_contents_real_size);
1676 symextn_contents_real_size = size;
1678 /* Grab some memory for the contents of the symbol extension section
1680 symextn_contents = (symext_entryS *) bfd_alloc (abfd, size);
1681 if (!symextn_contents)
1683 bfd_set_error (bfd_error_no_memory);
1684 abort(); /* FIXME */
1687 /* Fill in the contents of the symbol extension section. */
1688 for (i = 0, symextP = symext_root; symextP; symextP = symextP->next, ++i)
1689 symextn_contents[i] = symextP->entry;
1694 /* Return the symbol extension record of type TYPE for the symbol SYM. */
1696 static symext_entryS
1697 elf32_hppa_get_sym_extn (abfd, sym, type)
1704 case HPPA_SXT_SYMNDX:
1706 return (symext_entryS) 0;
1707 case HPPA_SXT_ARG_RELOC:
1709 elf_symbol_type *esymP = (elf_symbol_type *) sym;
1711 return (symext_entryS) esymP->tc_data.hppa_arg_reloc;
1713 /* This should never happen. */
1719 /* Search the chain of stub descriptions and locate the stub
1720 description for this the given section within the given bfd.
1722 FIXME: I see yet another wonderful linear linked list search
1723 here. This is probably bad. */
1725 static elf32_hppa_stub_description *
1726 find_stubs (abfd, stub_sec)
1730 elf32_hppa_stub_description *stubP;
1732 for (stubP = elf_hppa_stub_rootP; stubP; stubP = stubP->next)
1734 /* Is this the right one? */
1735 if (stubP->this_bfd == abfd && stubP->stub_sec == stub_sec)
1741 static elf32_hppa_stub_description *
1742 new_stub (abfd, stub_sec, link_info)
1745 struct bfd_link_info *link_info;
1747 elf32_hppa_stub_description *stub = find_stubs (abfd, stub_sec);
1749 /* If we found a list for this bfd, then use it. */
1753 /* Nope, allocate and initialize a new entry in the stub list chain. */
1754 stub = (elf32_hppa_stub_description *)
1755 bfd_zalloc (abfd, sizeof (elf32_hppa_stub_description));
1758 stub->this_bfd = abfd;
1759 stub->stub_sec = stub_sec;
1760 stub->real_size = 0;
1761 stub->allocated_size = 0;
1762 stub->stub_contents = NULL;
1763 stub->stub_secp = NULL;
1764 stub->link_info = link_info;
1766 stub->next = elf_hppa_stub_rootP;
1767 elf_hppa_stub_rootP = stub;
1771 bfd_set_error (bfd_error_no_memory);
1772 abort(); /* FIXME */
1778 /* Try and locate a stub with the name NAME within the stubs
1779 associated with ABFD. More linked list searches. */
1781 static elf32_hppa_stub_name_list *
1782 find_stub_by_name (abfd, stub_sec, name)
1787 /* Find the stubs associated with this bfd. */
1788 elf32_hppa_stub_description *stub = find_stubs (abfd, stub_sec);
1790 /* If found, then we have to walk down them looking for a match. */
1793 elf32_hppa_stub_name_list *name_listP;
1795 for (name_listP = stub->stub_listP;
1797 name_listP = name_listP->next)
1799 if (!strcmp (name_listP->sym->name, name))
1808 /* Add a new stub (SYM) to the list of stubs associated with the given BFD. */
1809 static elf32_hppa_stub_name_list *
1810 add_stub_by_name(abfd, stub_sec, sym, link_info)
1814 struct bfd_link_info *link_info;
1816 elf32_hppa_stub_description *stub = find_stubs (abfd, stub_sec);
1817 elf32_hppa_stub_name_list *stub_entry;
1819 /* If no stubs are associated with this bfd, then we have to make
1820 a chain-of-stubs associated with this bfd. */
1822 stub = new_stub (abfd, stub_sec, link_info);
1826 /* Allocate and initialize an entry in the stub chain. */
1827 stub_entry = (elf32_hppa_stub_name_list *)
1828 bfd_zalloc (abfd, sizeof (elf32_hppa_stub_name_list));
1832 stub_entry->size = 0;
1833 stub_entry->sym = sym;
1834 stub_entry->stub_desc = stub;
1835 /* First byte of this stub is the pointer to
1836 the next available location in the stub buffer. */
1837 stub_entry->stub_secp = stub->stub_secp;
1838 /* Add it to the chain. */
1839 if (stub->stub_listP)
1840 stub_entry->next = stub->stub_listP;
1842 stub_entry->next = NULL;
1843 stub->stub_listP = stub_entry;
1848 bfd_set_error (bfd_error_no_memory);
1849 abort(); /* FIXME */
1852 /* Death by mis-adventure. */
1854 return (elf32_hppa_stub_name_list *)NULL;
1857 /* For the given caller/callee argument location information and the
1858 type of relocation (arguments or return value), return the type
1859 of argument relocation needed to make caller and callee happy. */
1861 static arg_reloc_type
1862 type_of_mismatch (caller_bits, callee_bits, type)
1870 return mismatches[caller_bits][callee_bits];
1872 return retval_mismatches[caller_bits][callee_bits];
1874 return ARG_RELOC_ERR;
1877 /* Extract specific argument location bits for WHICH from the
1878 the full argument location information in AR. */
1879 #define EXTRACT_ARBITS(ar, which) ((ar) >> (8 - ((which) * 2))) & 3
1881 /* Add the new instruction INSN into the stub area denoted by ENTRY.
1882 FIXME: Looks like more cases where we assume sizeof (int) ==
1883 sizeof (insn) which may not be true if building cross tools. */
1884 #define NEW_INSTRUCTION(entry, insn) \
1886 *((entry)->stub_desc->stub_secp)++ = (insn); \
1887 (entry)->stub_desc->real_size += sizeof (int); \
1888 (entry)->size += sizeof(int); \
1889 bfd_set_section_size((entry)->stub_desc->this_bfd, \
1890 (entry)->stub_desc->stub_sec, \
1891 (entry)->stub_desc->real_size); \
1894 /* Find the offset of the current stub? Looks more like it
1895 finds the offset of the last instruction to me. */
1896 #define CURRENT_STUB_OFFSET(entry) \
1897 ((char *)(entry)->stub_desc->stub_secp \
1898 - (char *)(entry)->stub_desc->stub_contents - 4)
1900 /* All the stubs have already been built, finish up stub stuff
1901 by applying relocations to the stubs. */
1904 hppa_elf_stub_finish (output_bfd)
1907 elf32_hppa_stub_description *stub_list = elf_hppa_stub_rootP;
1909 /* If the stubs have been finished, then we're already done. */
1913 /* Walk down the list of stub lists. */
1914 for (; stub_list; stub_list = stub_list->next)
1916 /* If this list has stubs, then do something. */
1917 if (stub_list->real_size)
1919 bfd *stub_bfd = stub_list->this_bfd;
1920 asection *stub_sec = bfd_get_section_by_name (stub_bfd,
1921 ".hppa_linker_stubs");
1922 bfd_size_type reloc_size;
1923 arelent **reloc_vector;
1925 /* Some sanity checking. */
1926 BFD_ASSERT (stub_sec == stub_list->stub_sec);
1927 BFD_ASSERT (stub_sec);
1929 /* For stub sections raw_size == cooked_size. Also update
1930 reloc_done as we're handling the relocs now. */
1931 stub_sec->_cooked_size = stub_sec->_raw_size;
1932 stub_sec->reloc_done = true;
1934 /* Make space to hold the relocations for the stub section. */
1935 reloc_size = bfd_get_reloc_upper_bound (stub_bfd, stub_sec);
1936 reloc_vector = (arelent **) alloca (reloc_size);
1938 /* If we have relocations, do them. */
1939 if (bfd_canonicalize_reloc (stub_bfd, stub_sec, reloc_vector,
1940 output_bfd->outsymbols))
1943 for (parent = reloc_vector; *parent != NULL; parent++)
1946 bfd_reloc_status_type r =
1947 bfd_perform_relocation (stub_bfd, *parent,
1948 stub_list->stub_contents,
1949 stub_sec, (bfd *) NULL, &err);
1951 /* If there was an error, tell someone about it. */
1952 if (r != bfd_reloc_ok)
1954 struct bfd_link_info *link_info = stub_list->link_info;
1958 case bfd_reloc_undefined:
1959 if (! ((*link_info->callbacks->undefined_symbol)
1961 bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
1962 stub_bfd, stub_sec, (*parent)->address)))
1965 case bfd_reloc_dangerous:
1966 if (! ((*link_info->callbacks->reloc_dangerous)
1967 (link_info, err, stub_bfd, stub_sec,
1968 (*parent)->address)))
1971 case bfd_reloc_overflow:
1973 if (! ((*link_info->callbacks->reloc_overflow)
1975 bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
1976 (*parent)->howto->name,
1979 (*parent)->address)))
1983 case bfd_reloc_outofrange:
1992 /* All done with the relocations. Set the final contents
1993 of the stub section. FIXME: no check of return value! */
1994 bfd_set_section_contents (output_bfd, stub_sec,
1995 stub_list->stub_contents,
1996 0, stub_list->real_size);
2000 stubs_finished = true;
2003 /* Allocate a new relocation entry to be used in a linker stub. */
2006 hppa_elf_stub_reloc (stub_desc, output_bfd, target_sym, offset, type)
2007 elf32_hppa_stub_description *stub_desc;
2009 asymbol **target_sym;
2011 elf32_hppa_reloc_type type;
2015 Elf_Internal_Shdr *rela_hdr;
2017 /* I really don't like the realloc nonsense in here. FIXME. */
2018 if (stub_desc->relocs_allocated_cnt == stub_desc->stub_sec->reloc_count)
2020 /* Allocate the first few relocation entries. */
2021 if (stub_desc->stub_sec->relocation == NULL)
2023 stub_desc->relocs_allocated_cnt = STUB_RELOC_INCR;
2024 size = sizeof (arelent) * stub_desc->relocs_allocated_cnt;
2025 stub_desc->stub_sec->relocation = (arelent *) bfd_zmalloc (size);
2029 /* We've used all the entries we've already allocated. So get
2031 stub_desc->relocs_allocated_cnt += STUB_RELOC_INCR;
2032 size = sizeof (arelent) * stub_desc->relocs_allocated_cnt;
2033 stub_desc->stub_sec->relocation = (arelent *)
2034 realloc (stub_desc->stub_sec->relocation, size);
2036 if (!stub_desc->stub_sec->relocation)
2038 bfd_set_error (bfd_error_no_memory);
2039 abort (); /* FIXME */
2043 rela_hdr = &elf_section_data(stub_desc->stub_sec)->rel_hdr;
2044 rela_hdr->sh_size += sizeof(Elf32_External_Rela);
2046 /* Fill in the details. */
2047 relent.address = offset;
2049 relent.sym_ptr_ptr = target_sym;
2050 relent.howto = bfd_reloc_type_lookup (stub_desc->this_bfd, type);
2052 /* Save it in the array of relocations for the stub section. */
2053 memcpy (&stub_desc->stub_sec->relocation[stub_desc->stub_sec->reloc_count++],
2054 &relent, sizeof (arelent));
2057 /* Build an argument relocation stub. RTN_ADJUST is a hint that an
2058 adjust to the return pointer from within the stub itself may be
2062 hppa_elf_build_linker_stub (abfd, output_bfd, link_info, reloc_entry,
2063 stub_types, rtn_adjust, data, linker_stub_type)
2066 struct bfd_link_info *link_info;
2067 arelent *reloc_entry;
2068 arg_reloc_type stub_types[5];
2071 hppa_stub_type linker_stub_type;
2074 boolean milli, dyncall;
2075 char stub_sym_name[128];
2076 elf32_hppa_stub_name_list *stub_entry;
2077 /* Some initialization. */
2078 unsigned insn = data[0];
2079 asymbol *stub_sym = NULL;
2080 asymbol **orig_sym = reloc_entry->sym_ptr_ptr;
2081 asection *stub_sec = bfd_get_section_by_name (abfd, ".hppa_linker_stubs");
2082 elf32_hppa_stub_description *stub_desc = find_stubs (abfd, stub_sec);
2084 /* Perform some additional checks on whether we should really do the
2085 return adjustment. For example, if the instruction is nullified
2086 or if the delay slot contains an instruction that modifies the return
2087 pointer, then the branch instructions should not be rearranged
2088 (rtn_adjust is false). */
2089 if (insn & 2 || insn == 0)
2093 unsigned delay_insn = data[1];
2095 if (get_opcode (delay_insn) == LDO
2096 && (((insn & 0x03e00000) >> 21) == ((delay_insn & 0x001f0000) >> 16)))
2100 /* Some special code for long-call stubs. */
2101 if (linker_stub_type == HPPA_STUB_LONG_CALL)
2104 /* Is this a millicode call? If so, the return address
2105 comes in on r31 rather than r2 (rp) so a slightly
2106 different code sequence is needed. */
2107 unsigned rtn_reg = (insn & 0x03e00000) >> 21;
2111 /* Dyncall is special because the user code has already
2112 put the return pointer in %r2 (aka RP). Other millicode
2113 calls have the return pointer in %r31. */
2114 if (strcmp ((*orig_sym)->name, "$$dyncall") == 0)
2117 /* If we are creating a call from a stub to another stub, then
2118 never do the instruction reordering. We can tell if we are
2119 going to be calling one stub from another by the fact that
2120 the symbol name has '_stub_' (arg. reloc. stub) or '_lb_stub_'
2121 prepended to the name. Alternatively, the section of the
2122 symbol will be '.hppa_linker_stubs'. This is only an issue
2123 for long-calls; they are the only stubs allowed to call another
2125 if ((strncmp ((*orig_sym)->name, "_stub_", 6) == 0)
2126 || (strncmp ((*orig_sym)->name, "_lb_stub_", 9) == 0))
2128 BFD_ASSERT (strcmp ((*orig_sym)->section->name, ".hppa_linker_stubs")
2134 /* Create the stub section if necessary. */
2137 BFD_ASSERT (stub_desc == NULL);
2138 hppa_elf_create_stub_sec (abfd, output_bfd, &stub_sec, link_info);
2139 stub_desc = new_stub (abfd, stub_sec, link_info);
2142 /* Make the stub if we did not find one already. */
2144 stub_desc = new_stub (abfd, stub_sec, link_info);
2146 /* Allocate space to write the stub.
2147 FIXME: Why using realloc?!? */
2148 if (!stub_desc->stub_contents)
2150 stub_desc->allocated_size = STUB_BUFFER_INCR;
2151 stub_desc->stub_contents = (char *) malloc (STUB_BUFFER_INCR);
2153 else if ((stub_desc->allocated_size - stub_desc->real_size) < STUB_MAX_SIZE)
2155 stub_desc->allocated_size = stub_desc->allocated_size + STUB_BUFFER_INCR;
2156 stub_desc->stub_contents = (char *) realloc (stub_desc->stub_contents,
2157 stub_desc->allocated_size);
2160 /* If no memory die. (I seriously doubt the other routines
2161 are prepared to get a NULL return value). */
2162 if (!stub_desc->stub_contents)
2164 bfd_set_error (bfd_error_no_memory);
2168 /* Generate an appropriate name for this stub. */
2169 if (linker_stub_type == HPPA_STUB_ARG_RELOC)
2170 sprintf (stub_sym_name,
2171 "_stub_%s_%02d_%02d_%02d_%02d_%02d_%s",
2172 reloc_entry->sym_ptr_ptr[0]->name,
2173 stub_types[0], stub_types[1], stub_types[2],
2174 stub_types[3], stub_types[4],
2175 rtn_adjust ? "RA" : "");
2177 sprintf (stub_sym_name,
2178 "_lb_stub_%s_%s", reloc_entry->sym_ptr_ptr[0]->name,
2179 rtn_adjust ? "RA" : "");
2182 stub_desc->stub_secp
2183 = (int *) (stub_desc->stub_contents + stub_desc->real_size);
2184 stub_entry = find_stub_by_name (abfd, stub_sec, stub_sym_name);
2186 /* See if we already have one by this name. */
2189 /* Yes, re-use it. Redirect the original relocation from the
2190 old symbol (a function symbol) to the stub (the stub will call
2191 the original function). */
2192 stub_sym = stub_entry->sym;
2193 reloc_entry->sym_ptr_ptr = (asymbol **) bfd_zalloc (abfd,
2194 sizeof (asymbol **));
2195 if (reloc_entry->sym_ptr_ptr == NULL)
2197 bfd_set_error (bfd_error_no_memory);
2200 reloc_entry->sym_ptr_ptr[0] = stub_sym;
2201 if (linker_stub_type == HPPA_STUB_LONG_CALL
2202 || (reloc_entry->howto->type != R_HPPA_PLABEL_32
2203 && (get_opcode(insn) == BLE
2204 || get_opcode (insn) == BE
2205 || get_opcode (insn) == BL)))
2206 reloc_entry->howto = bfd_reloc_type_lookup (abfd, R_HPPA_STUB_CALL_17);
2210 /* Create a new symbol to point to this stub. */
2211 stub_sym = bfd_make_empty_symbol (abfd);
2214 bfd_set_error (bfd_error_no_memory);
2217 stub_sym->name = bfd_zalloc (abfd, strlen (stub_sym_name) + 1);
2218 if (!stub_sym->name)
2220 bfd_set_error (bfd_error_no_memory);
2223 strcpy ((char *) stub_sym->name, stub_sym_name);
2225 = (char *) stub_desc->stub_secp - (char *) stub_desc->stub_contents;
2226 stub_sym->section = stub_sec;
2227 stub_sym->flags = BSF_LOCAL | BSF_FUNCTION;
2228 stub_entry = add_stub_by_name (abfd, stub_sec, stub_sym, link_info);
2230 /* Redirect the original relocation from the old symbol (a function)
2231 to the stub (the stub calls the function). */
2232 reloc_entry->sym_ptr_ptr = (asymbol **) bfd_zalloc (abfd,
2233 sizeof (asymbol **));
2234 if (reloc_entry->sym_ptr_ptr == NULL)
2236 bfd_set_error (bfd_error_no_memory);
2239 reloc_entry->sym_ptr_ptr[0] = stub_sym;
2240 if (linker_stub_type == HPPA_STUB_LONG_CALL
2241 || (reloc_entry->howto->type != R_HPPA_PLABEL_32
2242 && (get_opcode (insn) == BLE
2243 || get_opcode (insn) == BE
2244 || get_opcode (insn) == BL)))
2245 reloc_entry->howto = bfd_reloc_type_lookup (abfd, R_HPPA_STUB_CALL_17);
2247 /* Now generate the code for the stub. Starting with two
2248 common instructions.
2250 FIXME: Do we still need the SP adjustment?
2251 Do we still need to muck with space registers? */
2252 NEW_INSTRUCTION (stub_entry, LDSID_31_1)
2253 NEW_INSTRUCTION (stub_entry, MTSP_1_SR0)
2255 if (linker_stub_type == HPPA_STUB_ARG_RELOC)
2257 NEW_INSTRUCTION (stub_entry, ADDI_8_SP)
2259 /* Examine each argument, generating code to relocate it
2260 into a different register if necessary. */
2261 for (i = ARG0; i < ARG3; i++)
2263 switch (stub_types[i])
2273 NEW_INSTRUCTION (stub_entry, STWS_ARG0_M8SP)
2274 NEW_INSTRUCTION (stub_entry, FLDWS_M8SP_FARG0)
2277 NEW_INSTRUCTION (stub_entry, STWS_ARG1_M8SP)
2278 NEW_INSTRUCTION (stub_entry, FLDWS_M8SP_FARG1)
2281 NEW_INSTRUCTION (stub_entry, STWS_ARG2_M8SP)
2282 NEW_INSTRUCTION (stub_entry, FLDWS_M8SP_FARG2)
2285 NEW_INSTRUCTION (stub_entry, STWS_ARG3_M8SP)
2286 NEW_INSTRUCTION (stub_entry, FLDWS_M8SP_FARG3)
2295 NEW_INSTRUCTION (stub_entry, STWS_ARG0_M4SP)
2296 NEW_INSTRUCTION (stub_entry, STWS_ARG1_M8SP)
2297 NEW_INSTRUCTION (stub_entry, FLDDS_M8SP_FARG1)
2309 NEW_INSTRUCTION (stub_entry, STWS_ARG2_M4SP)
2310 NEW_INSTRUCTION (stub_entry, STWS_ARG3_M8SP)
2311 NEW_INSTRUCTION (stub_entry, FLDDS_M8SP_FARG3)
2323 NEW_INSTRUCTION (stub_entry, FSTWS_FARG0_M8SP)
2324 NEW_INSTRUCTION (stub_entry, LDWS_M4SP_ARG0)
2327 NEW_INSTRUCTION (stub_entry, FSTWS_FARG1_M8SP)
2328 NEW_INSTRUCTION (stub_entry, LDWS_M4SP_ARG1)
2331 NEW_INSTRUCTION (stub_entry, FSTWS_FARG2_M8SP)
2332 NEW_INSTRUCTION (stub_entry, LDWS_M4SP_ARG2)
2335 NEW_INSTRUCTION (stub_entry, FSTWS_FARG3_M8SP)
2336 NEW_INSTRUCTION (stub_entry, LDWS_M4SP_ARG3)
2345 NEW_INSTRUCTION (stub_entry, FSTDS_FARG1_M8SP)
2346 NEW_INSTRUCTION (stub_entry, LDWS_M4SP_ARG0)
2347 NEW_INSTRUCTION (stub_entry, LDWS_M8SP_ARG1)
2359 NEW_INSTRUCTION (stub_entry, FSTDS_FARG3_M8SP)
2360 NEW_INSTRUCTION (stub_entry, LDWS_M4SP_ARG2)
2361 NEW_INSTRUCTION (stub_entry, LDWS_M8SP_ARG3)
2375 /* Put the stack pointer back. FIXME: Is this still necessary? */
2376 NEW_INSTRUCTION (stub_entry, ADDI_M8_SP_SP)
2379 /* Common code again. Return pointer adjustment and the like. */
2382 /* This isn't dyncall. */
2385 /* It's not a millicode call, so get the correct return
2386 value into %r2 (aka RP). */
2388 NEW_INSTRUCTION (stub_entry, ADDI_M4_31_RP)
2390 NEW_INSTRUCTION (stub_entry, COPY_31_2)
2394 /* It is a millicode call, so get the correct return
2395 value into %r1?!?. FIXME: Shouldn't this be
2396 %r31? Yes, and a little re-arrangement of the
2397 code below would make that possible. */
2399 NEW_INSTRUCTION (stub_entry, ADDI_M4_31_1)
2401 NEW_INSTRUCTION (stub_entry, COPY_31_1)
2406 /* This is dyncall, so the code is a little different as the
2407 return pointer is already in %r2 (aka RP). */
2409 NEW_INSTRUCTION (stub_entry, ADDI_M4_31_RP)
2412 /* Save the return address. */
2413 if (linker_stub_type == HPPA_STUB_ARG_RELOC)
2414 NEW_INSTRUCTION (stub_entry, STW_RP_M8SP)
2416 /* Long branch to the target function. */
2417 NEW_INSTRUCTION (stub_entry, LDIL_XXX_31)
2418 hppa_elf_stub_reloc (stub_entry->stub_desc,
2420 CURRENT_STUB_OFFSET (stub_entry),
2422 NEW_INSTRUCTION (stub_entry, BLE_XXX_0_31)
2423 hppa_elf_stub_reloc (stub_entry->stub_desc,
2425 CURRENT_STUB_OFFSET (stub_entry),
2426 R_HPPA_ABS_CALL_R17);
2428 if (linker_stub_type == HPPA_STUB_ARG_RELOC)
2430 /* In delay slot of long-call, copy %r31 into %r2 so that
2431 the callee can return in the normal fashion. */
2432 NEW_INSTRUCTION (stub_entry, COPY_31_2)
2434 /* Restore the return address. */
2435 NEW_INSTRUCTION (stub_entry, LDW_M8SP_RP)
2437 /* Generate the code to move the return value around. */
2438 switch (stub_types[RETVAL])
2444 NEW_INSTRUCTION (stub_entry, STWS_RET0_M8SP)
2445 NEW_INSTRUCTION (stub_entry, FLDWS_M8SP_FRET0)
2449 NEW_INSTRUCTION (stub_entry, FSTWS_FRET0_M8SP)
2450 NEW_INSTRUCTION (stub_entry, LDWS_M4SP_RET0)
2458 /* Return back to the main code stream. */
2459 NEW_INSTRUCTION (stub_entry, BV_N_0_RP)
2465 /* Get return address into %r31. Both variants may be necessary
2466 (I think) as we could be cascading into another stub. */
2468 NEW_INSTRUCTION (stub_entry, COPY_2_31)
2470 NEW_INSTRUCTION (stub_entry, COPY_1_31)
2474 /* Get the return address into %r31 too. Might be necessary
2475 (I think) as we could be cascading into another stub. */
2476 NEW_INSTRUCTION (stub_entry, COPY_2_31)
2479 /* No need for a return to the main stream. */
2485 /* Return nonzero if an argument relocation will be needed to call
2486 the function (symbol in RELOC_ENTRY) assuming the caller has
2487 argument relocation bugs CALLER_AR. */
2490 hppa_elf_arg_reloc_needed_p (abfd, reloc_entry, stub_types, caller_ar)
2492 arelent *reloc_entry;
2493 arg_reloc_type stub_types[5];
2494 symext_entryS caller_ar;
2496 /* If the symbol is still undefined, then it's impossible to know
2497 if an argument relocation is needed. */
2498 if (reloc_entry->sym_ptr_ptr[0]
2499 && reloc_entry->sym_ptr_ptr[0]->section != &bfd_und_section)
2501 symext_entryS callee_ar = elf32_hppa_get_sym_extn (abfd,
2502 reloc_entry->sym_ptr_ptr[0],
2503 HPPA_SXT_ARG_RELOC);
2505 /* Now examine all the argument and return value location
2506 information to determine if a relocation stub will be needed. */
2507 if (caller_ar && callee_ar)
2509 arg_location caller_loc[5];
2510 arg_location callee_loc[5];
2512 /* Extract the location information for the return value
2513 and argument registers separately. */
2514 callee_loc[RETVAL] = EXTRACT_ARBITS (callee_ar, RETVAL);
2515 caller_loc[RETVAL] = EXTRACT_ARBITS (caller_ar, RETVAL);
2516 callee_loc[ARG0] = EXTRACT_ARBITS (callee_ar, ARG0);
2517 caller_loc[ARG0] = EXTRACT_ARBITS (caller_ar, ARG0);
2518 callee_loc[ARG1] = EXTRACT_ARBITS (callee_ar, ARG1);
2519 caller_loc[ARG1] = EXTRACT_ARBITS (caller_ar, ARG1);
2520 callee_loc[ARG2] = EXTRACT_ARBITS (callee_ar, ARG2);
2521 caller_loc[ARG2] = EXTRACT_ARBITS (caller_ar, ARG2);
2522 callee_loc[ARG3] = EXTRACT_ARBITS (callee_ar, ARG3);
2523 caller_loc[ARG3] = EXTRACT_ARBITS (caller_ar, ARG3);
2525 /* Check some special combinations. For example, if FU
2526 appears in ARG1 or ARG3, we can move it to ARG0 or ARG2,
2527 respectively. (I guess this braindamage is correct? It'd
2528 take an hour or two of reading PA calling conventions to
2531 if (caller_loc[ARG0] == AR_FU || caller_loc[ARG1] == AR_FU)
2533 caller_loc[ARG0] = AR_DBL01;
2534 caller_loc[ARG1] = AR_NO;
2536 if (caller_loc[ARG2] == AR_FU || caller_loc[ARG3] == AR_FU)
2538 caller_loc[ARG2] = AR_DBL23;
2539 caller_loc[ARG3] = AR_NO;
2541 if (callee_loc[ARG0] == AR_FU || callee_loc[ARG1] == AR_FU)
2543 callee_loc[ARG0] = AR_DBL01;
2544 callee_loc[ARG1] = AR_NO;
2546 if (callee_loc[ARG2] == AR_FU || callee_loc[ARG3] == AR_FU)
2548 callee_loc[ARG2] = AR_DBL23;
2549 callee_loc[ARG3] = AR_NO;
2552 /* Now look up potential mismatches. */
2553 stub_types[ARG0] = type_of_mismatch (caller_loc[ARG0],
2556 stub_types[ARG1] = type_of_mismatch (caller_loc[ARG1],
2559 stub_types[ARG2] = type_of_mismatch (caller_loc[ARG2],
2562 stub_types[ARG3] = type_of_mismatch (caller_loc[ARG3],
2565 stub_types[RETVAL] = type_of_mismatch (caller_loc[RETVAL],
2569 /* If any of the arguments or return value need an argument
2570 relocation, then we will need an argument relocation stub. */
2571 if (stub_types[ARG0] != NO_ARG_RELOC
2572 || stub_types[ARG1] != NO_ARG_RELOC
2573 || stub_types[ARG2] != NO_ARG_RELOC
2574 || stub_types[ARG3] != NO_ARG_RELOC
2575 || stub_types[RETVAL] != NO_ARG_RELOC)
2582 /* Create the linker stub section. */
2585 hppa_elf_create_stub_sec (abfd, output_bfd, secptr, link_info)
2589 struct bfd_link_info *link_info;
2591 asection *output_text_section;
2593 output_text_section = bfd_get_section_by_name (output_bfd, ".text");
2594 *secptr = bfd_make_section (abfd, ".hppa_linker_stubs");
2595 bfd_set_section_flags (abfd, *secptr,
2596 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD
2597 | SEC_RELOC | SEC_CODE | SEC_READONLY);
2598 (*secptr)->output_section = output_text_section->output_section;
2599 (*secptr)->output_offset = 0;
2601 /* Set up the ELF section header for this new section. This
2602 is basically the same processing as elf_make_sections().
2603 elf_make_sections is static and therefore not accessable
2606 Elf_Internal_Shdr *this_hdr;
2607 this_hdr = &elf_section_data ((*secptr))->this_hdr;
2609 /* Set the sizes of this section. The contents have already
2611 this_hdr->sh_addr = (*secptr)->vma;
2612 this_hdr->sh_size = (*secptr)->_raw_size;
2614 /* Set appropriate flags for sections with relocations. */
2615 if ((*secptr)->flags & SEC_RELOC)
2617 Elf_Internal_Shdr *rela_hdr;
2618 int use_rela_p = get_elf_backend_data (abfd)->use_rela_p;
2620 rela_hdr = &elf_section_data ((*secptr))->rel_hdr;
2624 rela_hdr->sh_type = SHT_RELA;
2625 rela_hdr->sh_entsize = sizeof (Elf32_External_Rela);
2629 rela_hdr->sh_type = SHT_REL;
2630 rela_hdr->sh_entsize = sizeof (Elf32_External_Rel);
2632 rela_hdr->sh_flags = 0;
2633 rela_hdr->sh_addr = 0;
2634 rela_hdr->sh_offset = 0;
2635 rela_hdr->sh_addralign = 0;
2639 if ((*secptr)->flags & SEC_ALLOC)
2640 this_hdr->sh_flags |= SHF_ALLOC;
2642 if (!((*secptr)->flags & SEC_READONLY))
2643 this_hdr->sh_flags |= SHF_WRITE;
2645 if ((*secptr)->flags & SEC_CODE)
2646 this_hdr->sh_flags |= SHF_EXECINSTR;
2649 bfd_set_section_alignment (abfd, *secptr, 2);
2652 /* Return nonzero if a long-call stub will be needed to call the
2653 function (symbol in RELOC_ENTRY). */
2656 hppa_elf_long_branch_needed_p (abfd, asec, reloc_entry, symbol, insn)
2659 arelent *reloc_entry;
2663 long sym_value = get_symbol_value (symbol);
2664 int fmt = reloc_entry->howto->bitsize;
2665 unsigned char op = get_opcode (insn);
2668 #define too_far(val,num_bits) \
2669 ((int)(val) > (1 << (num_bits)) - 1) || ((int)(val) < (-1 << (num_bits)))
2675 reloc_entry->address + asec->output_offset + asec->output_section->vma;
2676 /* If the symbol and raddr (relocated addr?) are too far away from
2677 each other, then a long-call stub will be needed. */
2678 if (too_far (sym_value - raddr, fmt + 1))
2685 /* Search the given section and determine if linker stubs will be
2686 needed for any calls within that section.
2688 Return any new stub symbols created.
2690 Used out of hppaelf.em in the linker. */
2693 hppa_look_for_stubs_in_section (stub_bfd, abfd, output_bfd, asec,
2694 new_sym_cnt, link_info)
2700 struct bfd_link_info *link_info;
2703 arg_reloc_type stub_types[5];
2704 asymbol *new_syms = NULL;
2708 /* Relocations are in different places depending on whether this is
2709 an output section or an input section. Also, the relocations are
2710 in different forms. Sigh. Luckily, we have bfd_canonicalize_reloc()
2711 to straighten this out for us . */
2712 if (asec->reloc_count > 0)
2714 arelent **reloc_vector
2715 = (arelent **) alloca (asec->reloc_count * (sizeof (arelent *) + 1));
2717 /* Make sure the canonical symbols are hanging around in a convient
2719 if (bfd_get_outsymbols (abfd) == NULL)
2723 symsize = get_symtab_upper_bound (abfd);
2724 abfd->outsymbols = (asymbol **) bfd_alloc (abfd, symsize);
2725 if (!abfd->outsymbols)
2727 bfd_set_error (bfd_error_no_memory);
2730 abfd->symcount = bfd_canonicalize_symtab (abfd, abfd->outsymbols);
2733 /* Now get the relocations. */
2734 bfd_canonicalize_reloc (abfd, asec, reloc_vector,
2735 bfd_get_outsymbols (abfd));
2737 /* Examine each relocation entry in this section. */
2738 for (i = 0; i < asec->reloc_count; i++)
2740 arelent *rle = reloc_vector[i];
2742 switch (rle->howto->type)
2744 /* Any call could need argument relocation stubs, and
2745 some may need long-call stubs. */
2746 case R_HPPA_ABS_CALL_11:
2747 case R_HPPA_ABS_CALL_14:
2748 case R_HPPA_ABS_CALL_17:
2749 case R_HPPA_ABS_CALL_L21:
2750 case R_HPPA_ABS_CALL_R11:
2751 case R_HPPA_ABS_CALL_R14:
2752 case R_HPPA_ABS_CALL_R17:
2753 case R_HPPA_ABS_CALL_LS21:
2754 case R_HPPA_ABS_CALL_RS11:
2755 case R_HPPA_ABS_CALL_RS14:
2756 case R_HPPA_ABS_CALL_RS17:
2757 case R_HPPA_ABS_CALL_LD21:
2758 case R_HPPA_ABS_CALL_RD11:
2759 case R_HPPA_ABS_CALL_RD14:
2760 case R_HPPA_ABS_CALL_RD17:
2761 case R_HPPA_ABS_CALL_LR21:
2762 case R_HPPA_ABS_CALL_RR14:
2763 case R_HPPA_ABS_CALL_RR17:
2764 case R_HPPA_PCREL_CALL_11:
2765 case R_HPPA_PCREL_CALL_14:
2766 case R_HPPA_PCREL_CALL_17:
2767 case R_HPPA_PCREL_CALL_12:
2768 case R_HPPA_PCREL_CALL_L21:
2769 case R_HPPA_PCREL_CALL_R11:
2770 case R_HPPA_PCREL_CALL_R14:
2771 case R_HPPA_PCREL_CALL_R17:
2772 case R_HPPA_PCREL_CALL_LS21:
2773 case R_HPPA_PCREL_CALL_RS11:
2774 case R_HPPA_PCREL_CALL_RS14:
2775 case R_HPPA_PCREL_CALL_RS17:
2776 case R_HPPA_PCREL_CALL_LD21:
2777 case R_HPPA_PCREL_CALL_RD11:
2778 case R_HPPA_PCREL_CALL_RD14:
2779 case R_HPPA_PCREL_CALL_RD17:
2780 case R_HPPA_PCREL_CALL_LR21:
2781 case R_HPPA_PCREL_CALL_RR14:
2782 case R_HPPA_PCREL_CALL_RR17:
2784 symext_entryS caller_ar
2785 = (symext_entryS) HPPA_R_ARG_RELOC (rle->addend);
2788 /* We'll need this for the long-call checks. */
2789 bfd_get_section_contents (abfd, asec, insn, rle->address,
2792 /* See if this call needs an argument relocation stub. */
2793 if (hppa_elf_arg_reloc_needed_p (abfd, rle, stub_types,
2796 /* Generate a stub and keep track of the new symbol. */
2799 if (new_cnt == new_max)
2801 new_max += STUB_SYM_BUFFER_INC;
2802 new_syms = (asymbol *)
2803 realloc (new_syms, new_max * sizeof (asymbol));
2804 if (new_syms == NULL)
2808 /* Build the argument relocation stub. */
2809 r = hppa_elf_build_linker_stub (stub_bfd, output_bfd,
2811 stub_types, true, insn,
2812 HPPA_STUB_ARG_RELOC);
2813 new_syms[new_cnt++] = *r;
2816 /* See if this call needs a long-call stub. */
2817 if (hppa_elf_long_branch_needed_p (abfd, asec, rle,
2818 rle->sym_ptr_ptr[0],
2821 /* Generate a stub and keep track of the new symbol. */
2824 if (new_cnt == new_max)
2826 new_max += STUB_SYM_BUFFER_INC;
2827 new_syms = (asymbol *)
2828 realloc (new_syms, (new_max * sizeof (asymbol)));
2833 /* Build the long-call stub. */
2834 r = hppa_elf_build_linker_stub (stub_bfd, output_bfd,
2837 HPPA_STUB_LONG_CALL);
2838 new_syms[new_cnt++] = *r;
2843 /* PLABELs may need argument relocation stubs. */
2844 case R_HPPA_PLABEL_32:
2845 case R_HPPA_PLABEL_11:
2846 case R_HPPA_PLABEL_14:
2847 case R_HPPA_PLABEL_L21:
2848 case R_HPPA_PLABEL_R11:
2849 case R_HPPA_PLABEL_R14:
2851 /* On a plabel relocation, assume the arguments of the
2852 caller are set up in general registers (indirect
2853 calls only use general registers.
2854 NOTE: 0x155 = ARGW0=GR,ARGW1=GR,ARGW2=GR,RETVAL=GR. */
2855 symext_entryS caller_ar = (symext_entryS) 0x155;
2858 /* Do we really need this? */
2859 bfd_get_section_contents (abfd, asec, insn, rle->address,
2862 /* See if this call needs an argument relocation stub. */
2863 if (hppa_elf_arg_reloc_needed_p (abfd, rle, stub_types,
2866 /* Generate a plabel stub and keep track of the
2871 if (new_cnt == new_max)
2873 new_max += STUB_SYM_BUFFER_INC;
2874 new_syms = (asymbol *) realloc (new_syms, new_max
2875 * sizeof (asymbol));
2878 /* Determine whether a return adjustment
2879 (see the relocation code for relocation type
2880 R_HPPA_STUB_CALL_17) is possible. Basically,
2881 determine whether we are looking at a branch or not. */
2882 if (rle->howto->type == R_HPPA_PLABEL_32)
2886 switch (get_opcode(insn[0]))
2897 /* Build the argument relocation stub. */
2898 r = hppa_elf_build_linker_stub (stub_bfd, output_bfd,
2899 link_info, rle, stub_types,
2901 HPPA_STUB_ARG_RELOC);
2902 new_syms[new_cnt++] = *r;
2913 /* Return the new symbols and update the counters. */
2914 *new_sym_cnt = new_cnt;
2918 /* Set the contents of a particular section at a particular location. */
2921 hppa_elf_set_section_contents (abfd, section, location, offset, count)
2926 bfd_size_type count;
2928 /* Linker stubs are handled a little differently. */
2929 if (! strcmp (section->name, ".hppa_linker_stubs"))
2931 if (linker_stubs_max_size < offset + count)
2933 linker_stubs_max_size = offset + count + STUB_ALLOC_INCR;
2934 linker_stubs = (char *)realloc (linker_stubs, linker_stubs_max_size);
2939 if (offset + count > linker_stubs_size)
2940 linker_stubs_size = offset + count;
2942 /* Set the contents. */
2943 memcpy(linker_stubs + offset, location, count);
2947 /* For everything but the linker stub section, use the generic
2949 return bfd_elf32_set_section_contents (abfd, section, location,
2953 /* Get the contents of the given section.
2955 This is special for PA ELF because some sections (such as linker stubs)
2956 may reside in memory rather than on disk, or in the case of the symbol
2957 extension section, the contents may need to be generated from other
2958 information contained in the BFD. */
2961 hppa_elf_get_section_contents (abfd, section, location, offset, count)
2966 bfd_size_type count;
2968 /* If this is the linker stub section, then its contents are contained
2969 in memory rather than on disk. FIXME. Is that always right? What
2970 about the case where a final executable is read in and a user tries
2971 to get the contents of this section? In that case the contents would
2972 be on disk like everything else. */
2973 if (strcmp (section->name, ".hppa_linker_stubs") == 0)
2975 elf32_hppa_stub_description *stub_desc = find_stubs (abfd, section);
2980 /* Sanity check our arguments. */
2981 if ((bfd_size_type) (offset + count) > section->_raw_size
2982 || (bfd_size_type) (offset + count) > stub_desc->real_size)
2985 memcpy (location, stub_desc->stub_contents + offset, count);
2989 /* The symbol extension section also needs special handling. Its
2990 contents might be on the disk, in memory, or still need to
2992 else if (strcmp (section->name, ".hppa_symextn") == 0)
2994 /* If there are no output sections, then read the contents of the
2995 symbol extension section from disk. */
2996 if (section->output_section == NULL
2997 && abfd->direction == read_direction)
2999 return bfd_generic_get_section_contents (abfd, section, location,
3003 /* If this is the first time through, and there are output sections,
3004 then build the symbol extension section based on other information
3005 contained in the BFD. */
3006 else if (! symext_chain_built)
3010 (int *) elf_sym_extra (section->output_section->owner);
3012 for (i = 0; i < section->output_section->owner->symcount; i++)
3014 elf_hppa_tc_symbol (section->output_section->owner,
3015 ((elf_symbol_type *)
3016 section->output_section->owner->outsymbols[i]),
3017 symtab_map[i], &symext_rootP, &symext_lastP);
3019 symext_chain_built++;
3020 elf_hppa_tc_make_sections (section->output_section->owner,
3024 /* At this point we know that the symbol extension section has been
3025 built. We just need to copy it into the user's buffer. */
3029 /* Sanity check our arguments. */
3030 if ((bfd_size_type) (offset + count) > section->_raw_size
3031 || (bfd_size_type) (offset + count) > symextn_contents_real_size)
3035 (char *)symextn_contents + section->output_offset + offset,
3040 /* It's not the symbol extension or linker stub sections, use
3041 the generic routines. */
3042 return bfd_generic_get_section_contents (abfd, section, location,
3046 /* Translate from an elf into field into a howto relocation pointer. */
3049 elf_info_to_howto (abfd, cache_ptr, dst)
3052 Elf32_Internal_Rela *dst;
3054 BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_HPPA_UNIMPLEMENTED);
3055 cache_ptr->howto = &elf_hppa_howto_table[ELF32_R_TYPE (dst->r_info)];
3058 /* Do PA ELF specific processing for symbols. Needed to find the
3059 value of $global$. */
3062 elf32_hppa_backend_symbol_processing (abfd, sym)
3066 /* Is this a definition of $global$? If so, keep it because it will be
3067 needed if any relocations are performed. */
3068 if (!strcmp (sym->name, "$global$")
3069 && sym->section != &bfd_und_section)
3071 global_symbol = sym;
3075 /* Do some PA ELF specific work after reading in the symbol table.
3076 In particular attach the argument relocation from the
3077 symbol extension section to the appropriate symbols. */
3079 elf32_hppa_backend_symbol_table_processing (abfd, esyms,symcnt)
3081 elf_symbol_type *esyms;
3084 Elf32_Internal_Shdr *symextn_hdr =
3085 bfd_elf_find_section (abfd, SYMEXTN_SECTION_NAME);
3086 int i, current_sym_idx = 0;
3088 /* If no symbol extension existed, then all symbol extension information
3089 is assumed to be zero. */
3090 if (symextn_hdr == NULL)
3092 for (i = 0; i < symcnt; i++)
3093 esyms[i].tc_data.hppa_arg_reloc = 0;
3097 /* Allocate a buffer of the appropriate size for the symextn section. */
3098 symextn_hdr->contents = bfd_zalloc(abfd,symextn_hdr->sh_size);
3099 if (!symextn_hdr->contents)
3101 bfd_set_error (bfd_error_no_memory);
3104 symextn_hdr->size = symextn_hdr->sh_size;
3106 /* Read in the symextn section. */
3107 if (bfd_seek (abfd, symextn_hdr->sh_offset, SEEK_SET) == -1)
3109 bfd_set_error (bfd_error_system_call);
3112 if (bfd_read ((PTR) symextn_hdr->contents, 1, symextn_hdr->size, abfd)
3113 != symextn_hdr->size)
3115 bfd_set_error (bfd_error_system_call);
3119 /* Parse entries in the symbol extension section, updating the symtab
3121 for (i = 0; i < symextn_hdr->size / sizeof(symext_entryS); i++)
3123 symext_entryS *seP = ((symext_entryS *)symextn_hdr->contents) + i;
3124 int se_value = ELF32_HPPA_SX_VAL (*seP);
3125 int se_type = ELF32_HPPA_SX_TYPE (*seP);
3132 case HPPA_SXT_SYMNDX:
3133 if (se_value >= symcnt)
3135 bfd_set_error (bfd_error_bad_value);
3138 current_sym_idx = se_value - 1;
3141 case HPPA_SXT_ARG_RELOC:
3142 esyms[current_sym_idx].tc_data.hppa_arg_reloc = se_value;
3146 bfd_set_error (bfd_error_bad_value);
3153 /* Perform on PA ELF specific processing once a section has been
3154 read in. In particular keep the symbol indexes correct for
3155 the symbol extension information. */
3158 elf32_hppa_backend_section_processing (abfd, secthdr)
3160 Elf32_Internal_Shdr *secthdr;
3164 if (secthdr->sh_type == SHT_HPPA_SYMEXTN)
3166 for (i = 0; i < secthdr->size / sizeof (symext_entryS); i++)
3168 symext_entryS *seP = ((symext_entryS *)secthdr->contents) + i;
3169 int se_value = ELF32_HPPA_SX_VAL (*seP);
3170 int se_type = ELF32_HPPA_SX_TYPE (*seP);
3177 case HPPA_SXT_SYMNDX:
3178 for (j = 0; j < abfd->symcount; j++)
3180 /* Locate the map entry for this symbol and modify the
3181 symbol extension section symbol index entry to reflect
3182 the new symbol table index. */
3183 for (k = 0; k < elf32_hppa_symextn_map_size; k++)
3185 if (elf32_hppa_symextn_map[k].old_index == se_value
3186 && elf32_hppa_symextn_map[k].bfd
3187 == abfd->outsymbols[j]->the_bfd
3188 && elf32_hppa_symextn_map[k].sym
3189 == abfd->outsymbols[j])
3192 ELF32_HPPA_SX_WORD (HPPA_SXT_SYMNDX, j),
3199 case HPPA_SXT_ARG_RELOC:
3203 bfd_set_error (bfd_error_bad_value);
3211 /* What does this really do? Just determine if there is an appropriate
3212 mapping from ELF section headers to backend sections? More symbol
3213 extension braindamage. */
3216 elf32_hppa_backend_section_from_shdr (abfd, hdr, name)
3218 Elf32_Internal_Shdr *hdr;
3223 if (hdr->sh_type == SHT_HPPA_SYMEXTN)
3225 BFD_ASSERT (strcmp (name, ".hppa_symextn") == 0);
3227 /* Bits that get saved. This one is real. */
3230 newsect = bfd_make_section (abfd, name);
3231 if (newsect != NULL)
3233 newsect->vma = hdr->sh_addr;
3234 newsect->_raw_size = hdr->sh_size;
3235 newsect->filepos = hdr->sh_offset;
3236 newsect->flags |= SEC_HAS_CONTENTS;
3237 newsect->alignment_power = hdr->sh_addralign;
3239 if (hdr->sh_flags & SHF_ALLOC)
3241 newsect->flags |= SEC_ALLOC;
3242 newsect->flags |= SEC_LOAD;
3245 if (!(hdr->sh_flags & SHF_WRITE))
3246 newsect->flags |= SEC_READONLY;
3248 if (hdr->sh_flags & SHF_EXECINSTR)
3249 newsect->flags |= SEC_CODE;
3251 newsect->flags |= SEC_DATA;
3253 hdr->rawdata = (void *) newsect;
3261 /* Return true if the given section is a fake section. */
3264 elf32_hppa_backend_fake_sections (abfd, secthdr, asect)
3266 Elf_Internal_Shdr *secthdr;
3270 if (strcmp(asect->name, ".hppa_symextn") == 0)
3272 secthdr->sh_type = SHT_HPPA_SYMEXTN;
3273 secthdr->sh_flags = 0;
3274 secthdr->sh_info = elf_section_data(asect)->rel_hdr.sh_link;
3275 secthdr->sh_link = elf_onesymtab(abfd);
3279 if (!strcmp (asect->name, ".hppa_unwind"))
3281 secthdr->sh_type = SHT_PROGBITS;
3282 /* Unwind descriptors are not part of the program memory image. */
3283 secthdr->sh_flags = 0;
3284 secthdr->sh_info = 0;
3285 secthdr->sh_link = 0;
3286 secthdr->sh_entsize = 16;
3290 /* @@ Should this be CPU specific?? KR */
3291 if (!strcmp (asect->name, ".stabstr"))
3293 secthdr->sh_type = SHT_STRTAB;
3294 secthdr->sh_flags = 0;
3295 secthdr->sh_info = 0;
3296 secthdr->sh_link = 0;
3297 secthdr->sh_entsize = 0;
3304 /* Return true if there is a mapping from bfd section into a
3308 elf32_hppa_backend_section_from_bfd_section (abfd, hdr, asect, ignored)
3310 Elf32_Internal_Shdr *hdr;
3314 if (hdr->sh_type == SHT_HPPA_SYMEXTN)
3318 if (((struct sec *) (hdr->rawdata)) == asect)
3320 BFD_ASSERT (strcmp (asect->name, ".hppa_symextn") == 0);
3325 else if (hdr->sh_type == SHT_STRTAB)
3329 if (((struct sec *) (hdr->rawdata)) == asect)
3331 BFD_ASSERT (strcmp (asect->name, ".stabstr") == 0);
3340 #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
3341 #define elf_backend_section_from_bfd_section elf32_hppa_backend_section_from_bfd_section
3343 #define elf_backend_symbol_processing elf32_hppa_backend_symbol_processing
3344 #define elf_backend_symbol_table_processing elf32_hppa_backend_symbol_table_processing
3346 #define bfd_generic_get_section_contents hppa_elf_get_section_contents
3347 #define bfd_elf32_set_section_contents hppa_elf_set_section_contents
3349 #define elf_backend_section_processing elf32_hppa_backend_section_processing
3351 #define elf_backend_section_from_shdr elf32_hppa_backend_section_from_shdr
3352 #define elf_backend_fake_sections elf32_hppa_backend_fake_sections
3354 #define TARGET_BIG_SYM bfd_elf32_hppa_vec
3355 #define TARGET_BIG_NAME "elf32-hppa"
3356 #define ELF_ARCH bfd_arch_hppa
3357 #define ELF_MACHINE_CODE EM_HPPA
3358 #define ELF_MAXPAGESIZE 0x1000
3360 #include "elf32-target.h"