1 /* Target-dependent code for the Matsushita MN10300 for GDB, the GNU debugger.
3 Copyright (C) 2003-2018 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 #include "mn10300-tdep.h"
28 #include "solib-svr4.h"
30 #include "trad-frame.h"
31 #include "tramp-frame.h"
32 #include "linux-tdep.h"
34 /* Transliterated from <asm-mn10300/elf.h>... */
35 #define MN10300_ELF_NGREG 28
36 #define MN10300_ELF_NFPREG 32
38 typedef gdb_byte mn10300_elf_greg_t[4];
39 typedef mn10300_elf_greg_t mn10300_elf_gregset_t[MN10300_ELF_NGREG];
41 typedef gdb_byte mn10300_elf_fpreg_t[4];
44 mn10300_elf_fpreg_t fpregs[MN10300_ELF_NFPREG];
46 } mn10300_elf_fpregset_t;
48 /* elf_gregset_t register indices stolen from include/asm-mn10300/ptrace.h. */
49 #define MN10300_ELF_GREGSET_T_REG_INDEX_A3 0
50 #define MN10300_ELF_GREGSET_T_REG_INDEX_A2 1
51 #define MN10300_ELF_GREGSET_T_REG_INDEX_D3 2
52 #define MN10300_ELF_GREGSET_T_REG_INDEX_D2 3
53 #define MN10300_ELF_GREGSET_T_REG_INDEX_MCVF 4
54 #define MN10300_ELF_GREGSET_T_REG_INDEX_MCRL 5
55 #define MN10300_ELF_GREGSET_T_REG_INDEX_MCRH 6
56 #define MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ 7
57 #define MN10300_ELF_GREGSET_T_REG_INDEX_E1 8
58 #define MN10300_ELF_GREGSET_T_REG_INDEX_E0 9
59 #define MN10300_ELF_GREGSET_T_REG_INDEX_E7 10
60 #define MN10300_ELF_GREGSET_T_REG_INDEX_E6 11
61 #define MN10300_ELF_GREGSET_T_REG_INDEX_E5 12
62 #define MN10300_ELF_GREGSET_T_REG_INDEX_E4 13
63 #define MN10300_ELF_GREGSET_T_REG_INDEX_E3 14
64 #define MN10300_ELF_GREGSET_T_REG_INDEX_E2 15
65 #define MN10300_ELF_GREGSET_T_REG_INDEX_SP 16
66 #define MN10300_ELF_GREGSET_T_REG_INDEX_LAR 17
67 #define MN10300_ELF_GREGSET_T_REG_INDEX_LIR 18
68 #define MN10300_ELF_GREGSET_T_REG_INDEX_MDR 19
69 #define MN10300_ELF_GREGSET_T_REG_INDEX_A1 20
70 #define MN10300_ELF_GREGSET_T_REG_INDEX_A0 21
71 #define MN10300_ELF_GREGSET_T_REG_INDEX_D1 22
72 #define MN10300_ELF_GREGSET_T_REG_INDEX_D0 23
73 #define MN10300_ELF_GREGSET_T_REG_INDEX_ORIG_D0 24
74 #define MN10300_ELF_GREGSET_T_REG_INDEX_EPSW 25
75 #define MN10300_ELF_GREGSET_T_REG_INDEX_PC 26
77 /* New gdbarch API for corefile registers.
78 Given a section name and size, create a struct reg object
79 with a supply_register and a collect_register method. */
81 /* Copy register value of REGNUM from regset to regcache.
82 If REGNUM is -1, do this for all gp registers in regset. */
85 am33_supply_gregset_method (const struct regset *regset,
86 struct regcache *regcache,
87 int regnum, const void *gregs, size_t len)
89 const mn10300_elf_greg_t *regp = (const mn10300_elf_greg_t *) gregs;
92 gdb_assert (len >= sizeof (mn10300_elf_gregset_t));
96 regcache->raw_supply (E_D0_REGNUM,
97 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D0));
100 regcache->raw_supply (E_D1_REGNUM,
101 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D1));
104 regcache->raw_supply (E_D2_REGNUM,
105 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D2));
108 regcache->raw_supply (E_D3_REGNUM,
109 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D3));
112 regcache->raw_supply (E_A0_REGNUM,
113 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A0));
116 regcache->raw_supply (E_A1_REGNUM,
117 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A1));
120 regcache->raw_supply (E_A2_REGNUM,
121 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A2));
124 regcache->raw_supply (E_A3_REGNUM,
125 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A3));
128 regcache->raw_supply (E_SP_REGNUM,
129 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_SP));
132 regcache->raw_supply (E_PC_REGNUM,
133 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_PC));
136 regcache->raw_supply (E_MDR_REGNUM,
137 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDR));
140 regcache->raw_supply (E_PSW_REGNUM,
141 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_EPSW));
144 regcache->raw_supply (E_LIR_REGNUM,
145 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LIR));
148 regcache->raw_supply (E_LAR_REGNUM,
149 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LAR));
152 regcache->raw_supply (E_MDRQ_REGNUM,
153 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ));
156 regcache->raw_supply (E_E0_REGNUM,
157 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E0));
160 regcache->raw_supply (E_E1_REGNUM,
161 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E1));
164 regcache->raw_supply (E_E2_REGNUM,
165 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E2));
168 regcache->raw_supply (E_E3_REGNUM,
169 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E3));
172 regcache->raw_supply (E_E4_REGNUM,
173 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E4));
176 regcache->raw_supply (E_E5_REGNUM,
177 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E5));
180 regcache->raw_supply (E_E6_REGNUM,
181 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E6));
184 regcache->raw_supply (E_E7_REGNUM,
185 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E7));
188 /* ssp, msp, and usp are inaccessible. */
190 regcache->raw_supply_zeroed (E_E8_REGNUM);
193 regcache->raw_supply_zeroed (E_E9_REGNUM);
196 regcache->raw_supply_zeroed (E_E10_REGNUM);
199 regcache->raw_supply (E_MCRH_REGNUM,
200 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRH));
203 regcache->raw_supply (E_MCRL_REGNUM,
204 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRL));
207 regcache->raw_supply (E_MCVF_REGNUM,
208 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCVF));
211 /* FPCR is numbered among the GP regs, but handled as an FP reg.
214 case E_FPCR_REGNUM + 1:
215 /* The two unused registers beyond fpcr are inaccessible. */
216 regcache->raw_supply_zeroed (E_FPCR_REGNUM + 1);
218 case E_FPCR_REGNUM + 2:
219 regcache->raw_supply_zeroed (E_FPCR_REGNUM + 2);
221 default: /* An error, obviously, but should we error out? */
224 for (i = 0; i < MN10300_ELF_NGREG; i++)
225 am33_supply_gregset_method (regset, regcache, i, gregs, len);
231 /* Copy fp register value of REGNUM from regset to regcache.
232 If REGNUM is -1, do this for all fp registers in regset. */
235 am33_supply_fpregset_method (const struct regset *regset,
236 struct regcache *regcache,
237 int regnum, const void *fpregs, size_t len)
239 const mn10300_elf_fpregset_t *fpregset
240 = (const mn10300_elf_fpregset_t *) fpregs;
242 gdb_assert (len >= sizeof (mn10300_elf_fpregset_t));
248 for (i = 0; i < MN10300_ELF_NFPREG; i++)
249 am33_supply_fpregset_method (regset, regcache,
250 E_FS0_REGNUM + i, fpregs, len);
251 am33_supply_fpregset_method (regset, regcache,
252 E_FPCR_REGNUM, fpregs, len);
254 else if (regnum == E_FPCR_REGNUM)
255 regcache->raw_supply (E_FPCR_REGNUM, &fpregset->fpcr);
256 else if (E_FS0_REGNUM <= regnum
257 && regnum < E_FS0_REGNUM + MN10300_ELF_NFPREG)
258 regcache->raw_supply (regnum, &fpregset->fpregs[regnum - E_FS0_REGNUM]);
263 /* Copy register values from regcache to regset. */
266 am33_collect_gregset_method (const struct regset *regset,
267 const struct regcache *regcache,
268 int regnum, void *gregs, size_t len)
270 mn10300_elf_gregset_t *regp = (gdb_byte (*)[28][4]) gregs;
273 gdb_assert (len >= sizeof (mn10300_elf_gregset_t));
277 regcache_raw_collect (regcache, E_D0_REGNUM,
278 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D0));
281 regcache_raw_collect (regcache, E_D1_REGNUM,
282 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D1));
285 regcache_raw_collect (regcache, E_D2_REGNUM,
286 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D2));
289 regcache_raw_collect (regcache, E_D3_REGNUM,
290 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D3));
293 regcache_raw_collect (regcache, E_A0_REGNUM,
294 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A0));
297 regcache_raw_collect (regcache, E_A1_REGNUM,
298 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A1));
301 regcache_raw_collect (regcache, E_A2_REGNUM,
302 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A2));
305 regcache_raw_collect (regcache, E_A3_REGNUM,
306 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A3));
309 regcache_raw_collect (regcache, E_SP_REGNUM,
310 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_SP));
313 regcache_raw_collect (regcache, E_PC_REGNUM,
314 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_PC));
317 regcache_raw_collect (regcache, E_MDR_REGNUM,
318 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDR));
321 regcache_raw_collect (regcache, E_PSW_REGNUM,
322 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_EPSW));
325 regcache_raw_collect (regcache, E_LIR_REGNUM,
326 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LIR));
329 regcache_raw_collect (regcache, E_LAR_REGNUM,
330 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LAR));
333 regcache_raw_collect (regcache, E_MDRQ_REGNUM,
334 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ));
337 regcache_raw_collect (regcache, E_E0_REGNUM,
338 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E0));
341 regcache_raw_collect (regcache, E_E1_REGNUM,
342 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E1));
345 regcache_raw_collect (regcache, E_E2_REGNUM,
346 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E2));
349 regcache_raw_collect (regcache, E_E3_REGNUM,
350 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E3));
353 regcache_raw_collect (regcache, E_E4_REGNUM,
354 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E4));
357 regcache_raw_collect (regcache, E_E5_REGNUM,
358 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E5));
361 regcache_raw_collect (regcache, E_E6_REGNUM,
362 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E6));
365 regcache_raw_collect (regcache, E_E7_REGNUM,
366 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E7));
369 /* ssp, msp, and usp are inaccessible. */
371 /* The gregset struct has noplace to put this: do nothing. */
374 /* The gregset struct has noplace to put this: do nothing. */
377 /* The gregset struct has noplace to put this: do nothing. */
380 regcache_raw_collect (regcache, E_MCRH_REGNUM,
381 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRH));
384 regcache_raw_collect (regcache, E_MCRL_REGNUM,
385 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRL));
388 regcache_raw_collect (regcache, E_MCVF_REGNUM,
389 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCVF));
392 /* FPCR is numbered among the GP regs, but handled as an FP reg.
395 case E_FPCR_REGNUM + 1:
396 /* The gregset struct has noplace to put this: do nothing. */
398 case E_FPCR_REGNUM + 2:
399 /* The gregset struct has noplace to put this: do nothing. */
401 default: /* An error, obviously, but should we error out? */
404 for (i = 0; i < MN10300_ELF_NGREG; i++)
405 am33_collect_gregset_method (regset, regcache, i, gregs, len);
411 /* Copy fp register values from regcache to regset. */
414 am33_collect_fpregset_method (const struct regset *regset,
415 const struct regcache *regcache,
416 int regnum, void *fpregs, size_t len)
418 mn10300_elf_fpregset_t *fpregset = (mn10300_elf_fpregset_t *) fpregs;
420 gdb_assert (len >= sizeof (mn10300_elf_fpregset_t));
425 for (i = 0; i < MN10300_ELF_NFPREG; i++)
426 am33_collect_fpregset_method (regset, regcache, E_FS0_REGNUM + i,
428 am33_collect_fpregset_method (regset, regcache,
429 E_FPCR_REGNUM, fpregs, len);
431 else if (regnum == E_FPCR_REGNUM)
432 regcache_raw_collect (regcache, E_FPCR_REGNUM,
434 else if (E_FS0_REGNUM <= regnum
435 && regnum < E_FS0_REGNUM + MN10300_ELF_NFPREG)
436 regcache_raw_collect (regcache, regnum,
437 &fpregset->fpregs[regnum - E_FS0_REGNUM]);
442 static const struct regset am33_gregset =
444 NULL, am33_supply_gregset_method, am33_collect_gregset_method
447 static const struct regset am33_fpregset =
449 NULL, am33_supply_fpregset_method, am33_collect_fpregset_method
452 /* Iterate over core file register note sections. */
455 am33_iterate_over_regset_sections (struct gdbarch *gdbarch,
456 iterate_over_regset_sections_cb *cb,
458 const struct regcache *regcache)
460 cb (".reg", sizeof (mn10300_elf_gregset_t), &am33_gregset,
462 cb (".reg2", sizeof(mn10300_elf_fpregset_t), &am33_fpregset,
467 am33_linux_sigframe_cache_init (const struct tramp_frame *self,
468 struct frame_info *this_frame,
469 struct trad_frame_cache *this_cache,
472 static const struct tramp_frame am33_linux_sigframe = {
483 { TRAMP_SENTINEL_INSN, -1 }
485 am33_linux_sigframe_cache_init
488 static const struct tramp_frame am33_linux_rt_sigframe = {
499 { TRAMP_SENTINEL_INSN, -1 }
501 am33_linux_sigframe_cache_init
504 /* Relevant struct definitions for signal handling...
506 From arch/mn10300/kernel/sigframe.h:
510 void (*pretcode)(void);
512 struct sigcontext *psc;
513 struct sigcontext sc;
514 struct fpucontext fpuctx;
515 unsigned long extramask[_NSIG_WORDS-1];
521 void (*pretcode)(void);
523 struct siginfo *pinfo;
527 struct fpucontext fpuctx;
531 From include/asm-mn10300/ucontext.h:
534 unsigned long uc_flags;
535 struct ucontext *uc_link;
537 struct sigcontext uc_mcontext;
541 From include/asm-mn10300/sigcontext.h:
544 unsigned long fs[32];
575 struct fpucontext *fpucontext;
576 unsigned long oldmask;
580 #define AM33_SIGCONTEXT_D0 0
581 #define AM33_SIGCONTEXT_D1 4
582 #define AM33_SIGCONTEXT_D2 8
583 #define AM33_SIGCONTEXT_D3 12
584 #define AM33_SIGCONTEXT_A0 16
585 #define AM33_SIGCONTEXT_A1 20
586 #define AM33_SIGCONTEXT_A2 24
587 #define AM33_SIGCONTEXT_A3 28
588 #define AM33_SIGCONTEXT_E0 32
589 #define AM33_SIGCONTEXT_E1 36
590 #define AM33_SIGCONTEXT_E2 40
591 #define AM33_SIGCONTEXT_E3 44
592 #define AM33_SIGCONTEXT_E4 48
593 #define AM33_SIGCONTEXT_E5 52
594 #define AM33_SIGCONTEXT_E6 56
595 #define AM33_SIGCONTEXT_E7 60
596 #define AM33_SIGCONTEXT_LAR 64
597 #define AM33_SIGCONTEXT_LIR 68
598 #define AM33_SIGCONTEXT_MDR 72
599 #define AM33_SIGCONTEXT_MCVF 76
600 #define AM33_SIGCONTEXT_MCRL 80
601 #define AM33_SIGCONTEXT_MCRH 84
602 #define AM33_SIGCONTEXT_MDRQ 88
603 #define AM33_SIGCONTEXT_SP 92
604 #define AM33_SIGCONTEXT_EPSW 96
605 #define AM33_SIGCONTEXT_PC 100
606 #define AM33_SIGCONTEXT_FPUCONTEXT 104
610 am33_linux_sigframe_cache_init (const struct tramp_frame *self,
611 struct frame_info *this_frame,
612 struct trad_frame_cache *this_cache,
615 CORE_ADDR sc_base, fpubase;
618 sc_base = get_frame_register_unsigned (this_frame, E_SP_REGNUM);
619 if (self == &am33_linux_sigframe)
622 sc_base = get_frame_memory_unsigned (this_frame, sc_base, 4);
627 sc_base = get_frame_memory_unsigned (this_frame, sc_base, 4);
631 trad_frame_set_reg_addr (this_cache, E_D0_REGNUM,
632 sc_base + AM33_SIGCONTEXT_D0);
633 trad_frame_set_reg_addr (this_cache, E_D1_REGNUM,
634 sc_base + AM33_SIGCONTEXT_D1);
635 trad_frame_set_reg_addr (this_cache, E_D2_REGNUM,
636 sc_base + AM33_SIGCONTEXT_D2);
637 trad_frame_set_reg_addr (this_cache, E_D3_REGNUM,
638 sc_base + AM33_SIGCONTEXT_D3);
640 trad_frame_set_reg_addr (this_cache, E_A0_REGNUM,
641 sc_base + AM33_SIGCONTEXT_A0);
642 trad_frame_set_reg_addr (this_cache, E_A1_REGNUM,
643 sc_base + AM33_SIGCONTEXT_A1);
644 trad_frame_set_reg_addr (this_cache, E_A2_REGNUM,
645 sc_base + AM33_SIGCONTEXT_A2);
646 trad_frame_set_reg_addr (this_cache, E_A3_REGNUM,
647 sc_base + AM33_SIGCONTEXT_A3);
649 trad_frame_set_reg_addr (this_cache, E_E0_REGNUM,
650 sc_base + AM33_SIGCONTEXT_E0);
651 trad_frame_set_reg_addr (this_cache, E_E1_REGNUM,
652 sc_base + AM33_SIGCONTEXT_E1);
653 trad_frame_set_reg_addr (this_cache, E_E2_REGNUM,
654 sc_base + AM33_SIGCONTEXT_E2);
655 trad_frame_set_reg_addr (this_cache, E_E3_REGNUM,
656 sc_base + AM33_SIGCONTEXT_E3);
657 trad_frame_set_reg_addr (this_cache, E_E4_REGNUM,
658 sc_base + AM33_SIGCONTEXT_E4);
659 trad_frame_set_reg_addr (this_cache, E_E5_REGNUM,
660 sc_base + AM33_SIGCONTEXT_E5);
661 trad_frame_set_reg_addr (this_cache, E_E6_REGNUM,
662 sc_base + AM33_SIGCONTEXT_E6);
663 trad_frame_set_reg_addr (this_cache, E_E7_REGNUM,
664 sc_base + AM33_SIGCONTEXT_E7);
666 trad_frame_set_reg_addr (this_cache, E_LAR_REGNUM,
667 sc_base + AM33_SIGCONTEXT_LAR);
668 trad_frame_set_reg_addr (this_cache, E_LIR_REGNUM,
669 sc_base + AM33_SIGCONTEXT_LIR);
670 trad_frame_set_reg_addr (this_cache, E_MDR_REGNUM,
671 sc_base + AM33_SIGCONTEXT_MDR);
672 trad_frame_set_reg_addr (this_cache, E_MCVF_REGNUM,
673 sc_base + AM33_SIGCONTEXT_MCVF);
674 trad_frame_set_reg_addr (this_cache, E_MCRL_REGNUM,
675 sc_base + AM33_SIGCONTEXT_MCRL);
676 trad_frame_set_reg_addr (this_cache, E_MDRQ_REGNUM,
677 sc_base + AM33_SIGCONTEXT_MDRQ);
679 trad_frame_set_reg_addr (this_cache, E_SP_REGNUM,
680 sc_base + AM33_SIGCONTEXT_SP);
681 trad_frame_set_reg_addr (this_cache, E_PSW_REGNUM,
682 sc_base + AM33_SIGCONTEXT_EPSW);
683 trad_frame_set_reg_addr (this_cache, E_PC_REGNUM,
684 sc_base + AM33_SIGCONTEXT_PC);
686 fpubase = get_frame_memory_unsigned (this_frame,
687 sc_base + AM33_SIGCONTEXT_FPUCONTEXT,
691 for (i = 0; i < 32; i++)
693 trad_frame_set_reg_addr (this_cache, E_FS0_REGNUM + i,
696 trad_frame_set_reg_addr (this_cache, E_FPCR_REGNUM, fpubase + 4 * 32);
699 trad_frame_set_id (this_cache, frame_id_build (sc_base, func));
702 /* AM33 GNU/Linux osabi has been recognized.
703 Now's our chance to register our corefile handling. */
706 am33_linux_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch)
708 linux_init_abi (info, gdbarch);
710 set_gdbarch_iterate_over_regset_sections
711 (gdbarch, am33_iterate_over_regset_sections);
712 set_solib_svr4_fetch_link_map_offsets
713 (gdbarch, svr4_ilp32_fetch_link_map_offsets);
715 tramp_frame_prepend_unwinder (gdbarch, &am33_linux_sigframe);
716 tramp_frame_prepend_unwinder (gdbarch, &am33_linux_rt_sigframe);
720 _initialize_mn10300_linux_tdep (void)
722 gdbarch_register_osabi (bfd_arch_mn10300, 0,
723 GDB_OSABI_LINUX, am33_linux_init_osabi);