1 /* Target-dependent code for GDB, the GNU debugger.
3 Copyright (C) 1986-2018 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/>. */
33 #include "solib-svr4.h"
34 #include "solib-spu.h"
38 #include "ppc64-tdep.h"
39 #include "ppc-linux-tdep.h"
40 #include "arch/ppc-linux-common.h"
41 #include "arch/ppc-linux-tdesc.h"
42 #include "glibc-tdep.h"
43 #include "trad-frame.h"
44 #include "frame-unwind.h"
45 #include "tramp-frame.h"
46 #include "observable.h"
48 #include "elf/common.h"
49 #include "elf/ppc64.h"
50 #include "arch-utils.h"
52 #include "xml-syscall.h"
53 #include "linux-tdep.h"
54 #include "linux-record.h"
55 #include "record-full.h"
58 #include "stap-probe.h"
61 #include "cli/cli-utils.h"
62 #include "parser-defs.h"
63 #include "user-regs.h"
67 #include "features/rs6000/powerpc-32l.c"
68 #include "features/rs6000/powerpc-altivec32l.c"
69 #include "features/rs6000/powerpc-cell32l.c"
70 #include "features/rs6000/powerpc-vsx32l.c"
71 #include "features/rs6000/powerpc-isa205-32l.c"
72 #include "features/rs6000/powerpc-isa205-altivec32l.c"
73 #include "features/rs6000/powerpc-isa205-vsx32l.c"
74 #include "features/rs6000/powerpc-64l.c"
75 #include "features/rs6000/powerpc-altivec64l.c"
76 #include "features/rs6000/powerpc-cell64l.c"
77 #include "features/rs6000/powerpc-vsx64l.c"
78 #include "features/rs6000/powerpc-isa205-64l.c"
79 #include "features/rs6000/powerpc-isa205-altivec64l.c"
80 #include "features/rs6000/powerpc-isa205-vsx64l.c"
81 #include "features/rs6000/powerpc-e500l.c"
83 /* Shared library operations for PowerPC-Linux. */
84 static struct target_so_ops powerpc_so_ops
;
86 /* The syscall's XML filename for PPC and PPC64. */
87 #define XML_SYSCALL_FILENAME_PPC "syscalls/ppc-linux.xml"
88 #define XML_SYSCALL_FILENAME_PPC64 "syscalls/ppc64-linux.xml"
90 /* ppc_linux_memory_remove_breakpoints attempts to remove a breakpoint
91 in much the same fashion as memory_remove_breakpoint in mem-break.c,
92 but is careful not to write back the previous contents if the code
93 in question has changed in between inserting the breakpoint and
96 Here is the problem that we're trying to solve...
98 Once upon a time, before introducing this function to remove
99 breakpoints from the inferior, setting a breakpoint on a shared
100 library function prior to running the program would not work
101 properly. In order to understand the problem, it is first
102 necessary to understand a little bit about dynamic linking on
105 A call to a shared library function is accomplished via a bl
106 (branch-and-link) instruction whose branch target is an entry
107 in the procedure linkage table (PLT). The PLT in the object
108 file is uninitialized. To gdb, prior to running the program, the
109 entries in the PLT are all zeros.
111 Once the program starts running, the shared libraries are loaded
112 and the procedure linkage table is initialized, but the entries in
113 the table are not (necessarily) resolved. Once a function is
114 actually called, the code in the PLT is hit and the function is
115 resolved. In order to better illustrate this, an example is in
116 order; the following example is from the gdb testsuite.
118 We start the program shmain.
120 [kev@arroyo testsuite]$ ../gdb gdb.base/shmain
123 We place two breakpoints, one on shr1 and the other on main.
126 Breakpoint 1 at 0x100409d4
128 Breakpoint 2 at 0x100006a0: file gdb.base/shmain.c, line 44.
130 Examine the instruction (and the immediatly following instruction)
131 upon which the breakpoint was placed. Note that the PLT entry
132 for shr1 contains zeros.
134 (gdb) x/2i 0x100409d4
135 0x100409d4 <shr1>: .long 0x0
136 0x100409d8 <shr1+4>: .long 0x0
141 Starting program: gdb.base/shmain
142 Breakpoint 1 at 0xffaf790: file gdb.base/shr1.c, line 19.
144 Breakpoint 2, main ()
145 at gdb.base/shmain.c:44
148 Examine the PLT again. Note that the loading of the shared
149 library has initialized the PLT to code which loads a constant
150 (which I think is an index into the GOT) into r11 and then
151 branchs a short distance to the code which actually does the
154 (gdb) x/2i 0x100409d4
155 0x100409d4 <shr1>: li r11,4
156 0x100409d8 <shr1+4>: b 0x10040984 <sg+4>
160 Breakpoint 1, shr1 (x=1)
161 at gdb.base/shr1.c:19
164 Now we've hit the breakpoint at shr1. (The breakpoint was
165 reset from the PLT entry to the actual shr1 function after the
166 shared library was loaded.) Note that the PLT entry has been
167 resolved to contain a branch that takes us directly to shr1.
168 (The real one, not the PLT entry.)
170 (gdb) x/2i 0x100409d4
171 0x100409d4 <shr1>: b 0xffaf76c <shr1>
172 0x100409d8 <shr1+4>: b 0x10040984 <sg+4>
174 The thing to note here is that the PLT entry for shr1 has been
177 Now the problem should be obvious. GDB places a breakpoint (a
178 trap instruction) on the zero value of the PLT entry for shr1.
179 Later on, after the shared library had been loaded and the PLT
180 initialized, GDB gets a signal indicating this fact and attempts
181 (as it always does when it stops) to remove all the breakpoints.
183 The breakpoint removal was causing the former contents (a zero
184 word) to be written back to the now initialized PLT entry thus
185 destroying a portion of the initialization that had occurred only a
186 short time ago. When execution continued, the zero word would be
187 executed as an instruction an illegal instruction trap was
188 generated instead. (0 is not a legal instruction.)
190 The fix for this problem was fairly straightforward. The function
191 memory_remove_breakpoint from mem-break.c was copied to this file,
192 modified slightly, and renamed to ppc_linux_memory_remove_breakpoint.
193 In tm-linux.h, MEMORY_REMOVE_BREAKPOINT is defined to call this new
196 The differences between ppc_linux_memory_remove_breakpoint () and
197 memory_remove_breakpoint () are minor. All that the former does
198 that the latter does not is check to make sure that the breakpoint
199 location actually contains a breakpoint (trap instruction) prior
200 to attempting to write back the old contents. If it does contain
201 a trap instruction, we allow the old contents to be written back.
202 Otherwise, we silently do nothing.
204 The big question is whether memory_remove_breakpoint () should be
205 changed to have the same functionality. The downside is that more
206 traffic is generated for remote targets since we'll have an extra
207 fetch of a memory word each time a breakpoint is removed.
209 For the time being, we'll leave this self-modifying-code-friendly
210 version in ppc-linux-tdep.c, but it ought to be migrated somewhere
211 else in the event that some other platform has similar needs with
212 regard to removing breakpoints in some potentially self modifying
215 ppc_linux_memory_remove_breakpoint (struct gdbarch
*gdbarch
,
216 struct bp_target_info
*bp_tgt
)
218 CORE_ADDR addr
= bp_tgt
->reqstd_address
;
219 const unsigned char *bp
;
222 gdb_byte old_contents
[BREAKPOINT_MAX
];
224 /* Determine appropriate breakpoint contents and size for this address. */
225 bp
= gdbarch_breakpoint_from_pc (gdbarch
, &addr
, &bplen
);
227 /* Make sure we see the memory breakpoints. */
228 scoped_restore restore_memory
229 = make_scoped_restore_show_memory_breakpoints (1);
230 val
= target_read_memory (addr
, old_contents
, bplen
);
232 /* If our breakpoint is no longer at the address, this means that the
233 program modified the code on us, so it is wrong to put back the
235 if (val
== 0 && memcmp (bp
, old_contents
, bplen
) == 0)
236 val
= target_write_raw_memory (addr
, bp_tgt
->shadow_contents
, bplen
);
241 /* For historic reasons, PPC 32 GNU/Linux follows PowerOpen rather
242 than the 32 bit SYSV R4 ABI structure return convention - all
243 structures, no matter their size, are put in memory. Vectors,
244 which were added later, do get returned in a register though. */
246 static enum return_value_convention
247 ppc_linux_return_value (struct gdbarch
*gdbarch
, struct value
*function
,
248 struct type
*valtype
, struct regcache
*regcache
,
249 gdb_byte
*readbuf
, const gdb_byte
*writebuf
)
251 if ((TYPE_CODE (valtype
) == TYPE_CODE_STRUCT
252 || TYPE_CODE (valtype
) == TYPE_CODE_UNION
)
253 && !((TYPE_LENGTH (valtype
) == 16 || TYPE_LENGTH (valtype
) == 8)
254 && TYPE_VECTOR (valtype
)))
255 return RETURN_VALUE_STRUCT_CONVENTION
;
257 return ppc_sysv_abi_return_value (gdbarch
, function
, valtype
, regcache
,
261 /* PLT stub in an executable. */
262 static const struct ppc_insn_pattern powerpc32_plt_stub
[] =
264 { 0xffff0000, 0x3d600000, 0 }, /* lis r11, xxxx */
265 { 0xffff0000, 0x816b0000, 0 }, /* lwz r11, xxxx(r11) */
266 { 0xffffffff, 0x7d6903a6, 0 }, /* mtctr r11 */
267 { 0xffffffff, 0x4e800420, 0 }, /* bctr */
271 /* PLT stubs in a shared library or PIE.
272 The first variant is used when the PLT entry is within +/-32k of
273 the GOT pointer (r30). */
274 static const struct ppc_insn_pattern powerpc32_plt_stub_so_1
[] =
276 { 0xffff0000, 0x817e0000, 0 }, /* lwz r11, xxxx(r30) */
277 { 0xffffffff, 0x7d6903a6, 0 }, /* mtctr r11 */
278 { 0xffffffff, 0x4e800420, 0 }, /* bctr */
282 /* The second variant is used when the PLT entry is more than +/-32k
283 from the GOT pointer (r30). */
284 static const struct ppc_insn_pattern powerpc32_plt_stub_so_2
[] =
286 { 0xffff0000, 0x3d7e0000, 0 }, /* addis r11, r30, xxxx */
287 { 0xffff0000, 0x816b0000, 0 }, /* lwz r11, xxxx(r11) */
288 { 0xffffffff, 0x7d6903a6, 0 }, /* mtctr r11 */
289 { 0xffffffff, 0x4e800420, 0 }, /* bctr */
293 /* The max number of insns we check using ppc_insns_match_pattern. */
294 #define POWERPC32_PLT_CHECK_LEN (ARRAY_SIZE (powerpc32_plt_stub) - 1)
296 /* Check if PC is in PLT stub. For non-secure PLT, stub is in .plt
297 section. For secure PLT, stub is in .text and we need to check
298 instruction patterns. */
301 powerpc_linux_in_dynsym_resolve_code (CORE_ADDR pc
)
303 struct bound_minimal_symbol sym
;
305 /* Check whether PC is in the dynamic linker. This also checks
306 whether it is in the .plt section, used by non-PIC executables. */
307 if (svr4_in_dynsym_resolve_code (pc
))
310 /* Check if we are in the resolver. */
311 sym
= lookup_minimal_symbol_by_pc (pc
);
312 if (sym
.minsym
!= NULL
313 && (strcmp (MSYMBOL_LINKAGE_NAME (sym
.minsym
), "__glink") == 0
314 || strcmp (MSYMBOL_LINKAGE_NAME (sym
.minsym
),
315 "__glink_PLTresolve") == 0))
321 /* Follow PLT stub to actual routine.
323 When the execution direction is EXEC_REVERSE, scan backward to
324 check whether we are in the middle of a PLT stub. Currently,
325 we only look-behind at most 4 instructions (the max length of a PLT
329 ppc_skip_trampoline_code (struct frame_info
*frame
, CORE_ADDR pc
)
331 unsigned int insnbuf
[POWERPC32_PLT_CHECK_LEN
];
332 struct gdbarch
*gdbarch
= get_frame_arch (frame
);
333 struct gdbarch_tdep
*tdep
= gdbarch_tdep (gdbarch
);
334 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
335 CORE_ADDR target
= 0;
339 /* When reverse-debugging, scan backward to check whether we are
340 in the middle of trampoline code. */
341 if (execution_direction
== EXEC_REVERSE
)
342 scan_limit
= 4; /* At most 4 instructions. */
344 for (i
= 0; i
< scan_limit
; i
++)
346 if (ppc_insns_match_pattern (frame
, pc
, powerpc32_plt_stub
, insnbuf
))
348 /* Calculate PLT entry address from
350 lwz r11, xxxx(r11). */
351 target
= ((ppc_insn_d_field (insnbuf
[0]) << 16)
352 + ppc_insn_d_field (insnbuf
[1]));
354 else if (i
< ARRAY_SIZE (powerpc32_plt_stub_so_1
) - 1
355 && ppc_insns_match_pattern (frame
, pc
, powerpc32_plt_stub_so_1
,
358 /* Calculate PLT entry address from
359 lwz r11, xxxx(r30). */
360 target
= (ppc_insn_d_field (insnbuf
[0])
361 + get_frame_register_unsigned (frame
,
362 tdep
->ppc_gp0_regnum
+ 30));
364 else if (ppc_insns_match_pattern (frame
, pc
, powerpc32_plt_stub_so_2
,
367 /* Calculate PLT entry address from
369 lwz r11, xxxx(r11). */
370 target
= ((ppc_insn_d_field (insnbuf
[0]) << 16)
371 + ppc_insn_d_field (insnbuf
[1])
372 + get_frame_register_unsigned (frame
,
373 tdep
->ppc_gp0_regnum
+ 30));
377 /* Scan backward one more instruction if it doesn't match. */
382 target
= read_memory_unsigned_integer (target
, 4, byte_order
);
389 /* Wrappers to handle Linux-only registers. */
392 ppc_linux_supply_gregset (const struct regset
*regset
,
393 struct regcache
*regcache
,
394 int regnum
, const void *gregs
, size_t len
)
396 const struct ppc_reg_offsets
*offsets
397 = (const struct ppc_reg_offsets
*) regset
->regmap
;
399 ppc_supply_gregset (regset
, regcache
, regnum
, gregs
, len
);
401 if (ppc_linux_trap_reg_p (regcache
->arch ()))
403 /* "orig_r3" is stored 2 slots after "pc". */
404 if (regnum
== -1 || regnum
== PPC_ORIG_R3_REGNUM
)
405 ppc_supply_reg (regcache
, PPC_ORIG_R3_REGNUM
, (const gdb_byte
*) gregs
,
406 offsets
->pc_offset
+ 2 * offsets
->gpr_size
,
409 /* "trap" is stored 8 slots after "pc". */
410 if (regnum
== -1 || regnum
== PPC_TRAP_REGNUM
)
411 ppc_supply_reg (regcache
, PPC_TRAP_REGNUM
, (const gdb_byte
*) gregs
,
412 offsets
->pc_offset
+ 8 * offsets
->gpr_size
,
418 ppc_linux_collect_gregset (const struct regset
*regset
,
419 const struct regcache
*regcache
,
420 int regnum
, void *gregs
, size_t len
)
422 const struct ppc_reg_offsets
*offsets
423 = (const struct ppc_reg_offsets
*) regset
->regmap
;
425 /* Clear areas in the linux gregset not written elsewhere. */
427 memset (gregs
, 0, len
);
429 ppc_collect_gregset (regset
, regcache
, regnum
, gregs
, len
);
431 if (ppc_linux_trap_reg_p (regcache
->arch ()))
433 /* "orig_r3" is stored 2 slots after "pc". */
434 if (regnum
== -1 || regnum
== PPC_ORIG_R3_REGNUM
)
435 ppc_collect_reg (regcache
, PPC_ORIG_R3_REGNUM
, (gdb_byte
*) gregs
,
436 offsets
->pc_offset
+ 2 * offsets
->gpr_size
,
439 /* "trap" is stored 8 slots after "pc". */
440 if (regnum
== -1 || regnum
== PPC_TRAP_REGNUM
)
441 ppc_collect_reg (regcache
, PPC_TRAP_REGNUM
, (gdb_byte
*) gregs
,
442 offsets
->pc_offset
+ 8 * offsets
->gpr_size
,
447 /* Regset descriptions. */
448 static const struct ppc_reg_offsets ppc32_linux_reg_offsets
=
450 /* General-purpose registers. */
451 /* .r0_offset = */ 0,
454 /* .pc_offset = */ 128,
455 /* .ps_offset = */ 132,
456 /* .cr_offset = */ 152,
457 /* .lr_offset = */ 144,
458 /* .ctr_offset = */ 140,
459 /* .xer_offset = */ 148,
460 /* .mq_offset = */ 156,
462 /* Floating-point registers. */
463 /* .f0_offset = */ 0,
464 /* .fpscr_offset = */ 256,
465 /* .fpscr_size = */ 8
468 static const struct ppc_reg_offsets ppc64_linux_reg_offsets
=
470 /* General-purpose registers. */
471 /* .r0_offset = */ 0,
474 /* .pc_offset = */ 256,
475 /* .ps_offset = */ 264,
476 /* .cr_offset = */ 304,
477 /* .lr_offset = */ 288,
478 /* .ctr_offset = */ 280,
479 /* .xer_offset = */ 296,
480 /* .mq_offset = */ 312,
482 /* Floating-point registers. */
483 /* .f0_offset = */ 0,
484 /* .fpscr_offset = */ 256,
485 /* .fpscr_size = */ 8
488 static const struct regset ppc32_linux_gregset
= {
489 &ppc32_linux_reg_offsets
,
490 ppc_linux_supply_gregset
,
491 ppc_linux_collect_gregset
494 static const struct regset ppc64_linux_gregset
= {
495 &ppc64_linux_reg_offsets
,
496 ppc_linux_supply_gregset
,
497 ppc_linux_collect_gregset
500 static const struct regset ppc32_linux_fpregset
= {
501 &ppc32_linux_reg_offsets
,
506 static const struct regcache_map_entry ppc32_le_linux_vrregmap
[] =
508 { 32, PPC_VR0_REGNUM
, 16 },
509 { 1, PPC_VSCR_REGNUM
, 4 },
510 { 1, REGCACHE_MAP_SKIP
, 12 },
511 { 1, PPC_VRSAVE_REGNUM
, 4 },
512 { 1, REGCACHE_MAP_SKIP
, 12 },
516 static const struct regcache_map_entry ppc32_be_linux_vrregmap
[] =
518 { 32, PPC_VR0_REGNUM
, 16 },
519 { 1, REGCACHE_MAP_SKIP
, 12},
520 { 1, PPC_VSCR_REGNUM
, 4 },
521 { 1, PPC_VRSAVE_REGNUM
, 4 },
522 { 1, REGCACHE_MAP_SKIP
, 12 },
526 static const struct regset ppc32_le_linux_vrregset
= {
527 ppc32_le_linux_vrregmap
,
528 regcache_supply_regset
,
529 regcache_collect_regset
532 static const struct regset ppc32_be_linux_vrregset
= {
533 ppc32_be_linux_vrregmap
,
534 regcache_supply_regset
,
535 regcache_collect_regset
538 static const struct regcache_map_entry ppc32_linux_vsxregmap
[] =
540 { 32, PPC_VSR0_UPPER_REGNUM
, 8 },
544 static const struct regset ppc32_linux_vsxregset
= {
545 ppc32_linux_vsxregmap
,
546 regcache_supply_regset
,
547 regcache_collect_regset
550 const struct regset
*
551 ppc_linux_gregset (int wordsize
)
553 return wordsize
== 8 ? &ppc64_linux_gregset
: &ppc32_linux_gregset
;
556 const struct regset
*
557 ppc_linux_fpregset (void)
559 return &ppc32_linux_fpregset
;
562 const struct regset
*
563 ppc_linux_vrregset (struct gdbarch
*gdbarch
)
565 if (gdbarch_byte_order (gdbarch
) == BFD_ENDIAN_BIG
)
566 return &ppc32_be_linux_vrregset
;
568 return &ppc32_le_linux_vrregset
;
571 const struct regset
*
572 ppc_linux_vsxregset (void)
574 return &ppc32_linux_vsxregset
;
577 /* Iterate over supported core file register note sections. */
580 ppc_linux_iterate_over_regset_sections (struct gdbarch
*gdbarch
,
581 iterate_over_regset_sections_cb
*cb
,
583 const struct regcache
*regcache
)
585 struct gdbarch_tdep
*tdep
= gdbarch_tdep (gdbarch
);
586 int have_altivec
= tdep
->ppc_vr0_regnum
!= -1;
587 int have_vsx
= tdep
->ppc_vsr0_upper_regnum
!= -1;
589 if (tdep
->wordsize
== 4)
590 cb (".reg", 48 * 4, 48 * 4, &ppc32_linux_gregset
, NULL
, cb_data
);
592 cb (".reg", 48 * 8, 48 * 8, &ppc64_linux_gregset
, NULL
, cb_data
);
594 cb (".reg2", 264, 264, &ppc32_linux_fpregset
, NULL
, cb_data
);
598 const struct regset
*vrregset
= ppc_linux_vrregset (gdbarch
);
599 cb (".reg-ppc-vmx", PPC_LINUX_SIZEOF_VRREGSET
, PPC_LINUX_SIZEOF_VRREGSET
,
600 vrregset
, "ppc Altivec", cb_data
);
604 cb (".reg-ppc-vsx", PPC_LINUX_SIZEOF_VSXREGSET
, PPC_LINUX_SIZEOF_VSXREGSET
,
605 &ppc32_linux_vsxregset
, "POWER7 VSX", cb_data
);
609 ppc_linux_sigtramp_cache (struct frame_info
*this_frame
,
610 struct trad_frame_cache
*this_cache
,
611 CORE_ADDR func
, LONGEST offset
,
619 struct gdbarch
*gdbarch
= get_frame_arch (this_frame
);
620 struct gdbarch_tdep
*tdep
= gdbarch_tdep (gdbarch
);
621 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
623 base
= get_frame_register_unsigned (this_frame
,
624 gdbarch_sp_regnum (gdbarch
));
625 if (bias
> 0 && get_frame_pc (this_frame
) != func
)
626 /* See below, some signal trampolines increment the stack as their
627 first instruction, need to compensate for that. */
630 /* Find the address of the register buffer pointer. */
631 regs
= base
+ offset
;
632 /* Use that to find the address of the corresponding register
634 gpregs
= read_memory_unsigned_integer (regs
, tdep
->wordsize
, byte_order
);
635 fpregs
= gpregs
+ 48 * tdep
->wordsize
;
637 /* General purpose. */
638 for (i
= 0; i
< 32; i
++)
640 int regnum
= i
+ tdep
->ppc_gp0_regnum
;
641 trad_frame_set_reg_addr (this_cache
,
642 regnum
, gpregs
+ i
* tdep
->wordsize
);
644 trad_frame_set_reg_addr (this_cache
,
645 gdbarch_pc_regnum (gdbarch
),
646 gpregs
+ 32 * tdep
->wordsize
);
647 trad_frame_set_reg_addr (this_cache
, tdep
->ppc_ctr_regnum
,
648 gpregs
+ 35 * tdep
->wordsize
);
649 trad_frame_set_reg_addr (this_cache
, tdep
->ppc_lr_regnum
,
650 gpregs
+ 36 * tdep
->wordsize
);
651 trad_frame_set_reg_addr (this_cache
, tdep
->ppc_xer_regnum
,
652 gpregs
+ 37 * tdep
->wordsize
);
653 trad_frame_set_reg_addr (this_cache
, tdep
->ppc_cr_regnum
,
654 gpregs
+ 38 * tdep
->wordsize
);
656 if (ppc_linux_trap_reg_p (gdbarch
))
658 trad_frame_set_reg_addr (this_cache
, PPC_ORIG_R3_REGNUM
,
659 gpregs
+ 34 * tdep
->wordsize
);
660 trad_frame_set_reg_addr (this_cache
, PPC_TRAP_REGNUM
,
661 gpregs
+ 40 * tdep
->wordsize
);
664 if (ppc_floating_point_unit_p (gdbarch
))
666 /* Floating point registers. */
667 for (i
= 0; i
< 32; i
++)
669 int regnum
= i
+ gdbarch_fp0_regnum (gdbarch
);
670 trad_frame_set_reg_addr (this_cache
, regnum
,
671 fpregs
+ i
* tdep
->wordsize
);
673 trad_frame_set_reg_addr (this_cache
, tdep
->ppc_fpscr_regnum
,
674 fpregs
+ 32 * tdep
->wordsize
);
676 trad_frame_set_id (this_cache
, frame_id_build (base
, func
));
680 ppc32_linux_sigaction_cache_init (const struct tramp_frame
*self
,
681 struct frame_info
*this_frame
,
682 struct trad_frame_cache
*this_cache
,
685 ppc_linux_sigtramp_cache (this_frame
, this_cache
, func
,
686 0xd0 /* Offset to ucontext_t. */
687 + 0x30 /* Offset to .reg. */,
692 ppc64_linux_sigaction_cache_init (const struct tramp_frame
*self
,
693 struct frame_info
*this_frame
,
694 struct trad_frame_cache
*this_cache
,
697 ppc_linux_sigtramp_cache (this_frame
, this_cache
, func
,
698 0x80 /* Offset to ucontext_t. */
699 + 0xe0 /* Offset to .reg. */,
704 ppc32_linux_sighandler_cache_init (const struct tramp_frame
*self
,
705 struct frame_info
*this_frame
,
706 struct trad_frame_cache
*this_cache
,
709 ppc_linux_sigtramp_cache (this_frame
, this_cache
, func
,
710 0x40 /* Offset to ucontext_t. */
711 + 0x1c /* Offset to .reg. */,
716 ppc64_linux_sighandler_cache_init (const struct tramp_frame
*self
,
717 struct frame_info
*this_frame
,
718 struct trad_frame_cache
*this_cache
,
721 ppc_linux_sigtramp_cache (this_frame
, this_cache
, func
,
722 0x80 /* Offset to struct sigcontext. */
723 + 0x38 /* Offset to .reg. */,
727 static struct tramp_frame ppc32_linux_sigaction_tramp_frame
= {
731 { 0x380000ac, ULONGEST_MAX
}, /* li r0, 172 */
732 { 0x44000002, ULONGEST_MAX
}, /* sc */
733 { TRAMP_SENTINEL_INSN
},
735 ppc32_linux_sigaction_cache_init
737 static struct tramp_frame ppc64_linux_sigaction_tramp_frame
= {
741 { 0x38210080, ULONGEST_MAX
}, /* addi r1,r1,128 */
742 { 0x380000ac, ULONGEST_MAX
}, /* li r0, 172 */
743 { 0x44000002, ULONGEST_MAX
}, /* sc */
744 { TRAMP_SENTINEL_INSN
},
746 ppc64_linux_sigaction_cache_init
748 static struct tramp_frame ppc32_linux_sighandler_tramp_frame
= {
752 { 0x38000077, ULONGEST_MAX
}, /* li r0,119 */
753 { 0x44000002, ULONGEST_MAX
}, /* sc */
754 { TRAMP_SENTINEL_INSN
},
756 ppc32_linux_sighandler_cache_init
758 static struct tramp_frame ppc64_linux_sighandler_tramp_frame
= {
762 { 0x38210080, ULONGEST_MAX
}, /* addi r1,r1,128 */
763 { 0x38000077, ULONGEST_MAX
}, /* li r0,119 */
764 { 0x44000002, ULONGEST_MAX
}, /* sc */
765 { TRAMP_SENTINEL_INSN
},
767 ppc64_linux_sighandler_cache_init
770 /* Return 1 if PPC_ORIG_R3_REGNUM and PPC_TRAP_REGNUM are usable. */
772 ppc_linux_trap_reg_p (struct gdbarch
*gdbarch
)
774 /* If we do not have a target description with registers, then
775 the special registers will not be included in the register set. */
776 if (!tdesc_has_registers (gdbarch_target_desc (gdbarch
)))
779 /* If we do, then it is safe to check the size. */
780 return register_size (gdbarch
, PPC_ORIG_R3_REGNUM
) > 0
781 && register_size (gdbarch
, PPC_TRAP_REGNUM
) > 0;
784 /* Return the current system call's number present in the
785 r0 register. When the function fails, it returns -1. */
787 ppc_linux_get_syscall_number (struct gdbarch
*gdbarch
,
790 struct regcache
*regcache
= get_thread_regcache (thread
);
791 struct gdbarch_tdep
*tdep
= gdbarch_tdep (gdbarch
);
792 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
794 /* Make sure we're in a 32- or 64-bit machine */
795 gdb_assert (tdep
->wordsize
== 4 || tdep
->wordsize
== 8);
797 /* The content of a register */
798 gdb::byte_vector
buf (tdep
->wordsize
);
800 /* Getting the system call number from the register.
801 When dealing with PowerPC architecture, this information
802 is stored at 0th register. */
803 regcache
->cooked_read (tdep
->ppc_gp0_regnum
, buf
.data ());
805 return extract_signed_integer (buf
.data (), tdep
->wordsize
, byte_order
);
808 /* PPC process record-replay */
810 static struct linux_record_tdep ppc_linux_record_tdep
;
811 static struct linux_record_tdep ppc64_linux_record_tdep
;
813 /* ppc_canonicalize_syscall maps from the native PowerPC Linux set of
814 syscall ids into a canonical set of syscall ids used by process
815 record. (See arch/powerpc/include/uapi/asm/unistd.h in kernel tree.)
816 Return -1 if this system call is not supported by process record.
817 Otherwise, return the syscall number for preocess reocrd of given
820 static enum gdb_syscall
821 ppc_canonicalize_syscall (int syscall
)
827 else if (syscall
>= 167 && syscall
<= 190) /* Skip query_module 166 */
828 result
= syscall
+ 1;
829 else if (syscall
>= 192 && syscall
<= 197) /* mmap2 */
831 else if (syscall
== 208) /* tkill */
832 result
= gdb_sys_tkill
;
833 else if (syscall
>= 207 && syscall
<= 220) /* gettid */
834 result
= syscall
+ 224 - 207;
835 else if (syscall
>= 234 && syscall
<= 239) /* exit_group */
836 result
= syscall
+ 252 - 234;
837 else if (syscall
>= 240 && syscall
<= 248) /* timer_create */
838 result
= syscall
+= 259 - 240;
839 else if (syscall
>= 250 && syscall
<= 251) /* tgkill */
840 result
= syscall
+ 270 - 250;
841 else if (syscall
== 336)
842 result
= gdb_sys_recv
;
843 else if (syscall
== 337)
844 result
= gdb_sys_recvfrom
;
845 else if (syscall
== 342)
846 result
= gdb_sys_recvmsg
;
848 return (enum gdb_syscall
) result
;
851 /* Record registers which might be clobbered during system call.
852 Return 0 if successful. */
855 ppc_linux_syscall_record (struct regcache
*regcache
)
857 struct gdbarch
*gdbarch
= regcache
->arch ();
858 struct gdbarch_tdep
*tdep
= gdbarch_tdep (gdbarch
);
860 enum gdb_syscall syscall_gdb
;
863 regcache_raw_read_unsigned (regcache
, tdep
->ppc_gp0_regnum
, &scnum
);
864 syscall_gdb
= ppc_canonicalize_syscall (scnum
);
868 printf_unfiltered (_("Process record and replay target doesn't "
869 "support syscall number %d\n"), (int) scnum
);
873 if (syscall_gdb
== gdb_sys_sigreturn
874 || syscall_gdb
== gdb_sys_rt_sigreturn
)
877 int regsets
[] = { tdep
->ppc_gp0_regnum
,
878 tdep
->ppc_fp0_regnum
,
879 tdep
->ppc_vr0_regnum
,
880 tdep
->ppc_vsr0_upper_regnum
};
882 for (j
= 0; j
< 4; j
++)
884 if (regsets
[j
] == -1)
886 for (i
= 0; i
< 32; i
++)
888 if (record_full_arch_list_add_reg (regcache
, regsets
[j
] + i
))
893 if (record_full_arch_list_add_reg (regcache
, tdep
->ppc_cr_regnum
))
895 if (record_full_arch_list_add_reg (regcache
, tdep
->ppc_ctr_regnum
))
897 if (record_full_arch_list_add_reg (regcache
, tdep
->ppc_lr_regnum
))
899 if (record_full_arch_list_add_reg (regcache
, tdep
->ppc_xer_regnum
))
905 if (tdep
->wordsize
== 8)
906 ret
= record_linux_system_call (syscall_gdb
, regcache
,
907 &ppc64_linux_record_tdep
);
909 ret
= record_linux_system_call (syscall_gdb
, regcache
,
910 &ppc_linux_record_tdep
);
915 /* Record registers clobbered during syscall. */
916 for (int i
= 3; i
<= 12; i
++)
918 if (record_full_arch_list_add_reg (regcache
, tdep
->ppc_gp0_regnum
+ i
))
921 if (record_full_arch_list_add_reg (regcache
, tdep
->ppc_gp0_regnum
+ 0))
923 if (record_full_arch_list_add_reg (regcache
, tdep
->ppc_cr_regnum
))
925 if (record_full_arch_list_add_reg (regcache
, tdep
->ppc_ctr_regnum
))
927 if (record_full_arch_list_add_reg (regcache
, tdep
->ppc_lr_regnum
))
933 /* Record registers which might be clobbered during signal handling.
934 Return 0 if successful. */
937 ppc_linux_record_signal (struct gdbarch
*gdbarch
, struct regcache
*regcache
,
938 enum gdb_signal signal
)
940 /* See handle_rt_signal64 in arch/powerpc/kernel/signal_64.c
941 handle_rt_signal32 in arch/powerpc/kernel/signal_32.c
942 arch/powerpc/include/asm/ptrace.h
944 const int SIGNAL_FRAMESIZE
= 128;
945 const int sizeof_rt_sigframe
= 1440 * 2 + 8 * 2 + 4 * 6 + 8 + 8 + 128 + 512;
947 struct gdbarch_tdep
*tdep
= gdbarch_tdep (gdbarch
);
950 for (i
= 3; i
<= 12; i
++)
952 if (record_full_arch_list_add_reg (regcache
, tdep
->ppc_gp0_regnum
+ i
))
956 if (record_full_arch_list_add_reg (regcache
, tdep
->ppc_lr_regnum
))
958 if (record_full_arch_list_add_reg (regcache
, tdep
->ppc_cr_regnum
))
960 if (record_full_arch_list_add_reg (regcache
, tdep
->ppc_ctr_regnum
))
962 if (record_full_arch_list_add_reg (regcache
, gdbarch_pc_regnum (gdbarch
)))
964 if (record_full_arch_list_add_reg (regcache
, gdbarch_sp_regnum (gdbarch
)))
967 /* Record the change in the stack.
968 frame-size = sizeof (struct rt_sigframe) + SIGNAL_FRAMESIZE */
969 regcache_raw_read_unsigned (regcache
, gdbarch_sp_regnum (gdbarch
), &sp
);
970 sp
-= SIGNAL_FRAMESIZE
;
971 sp
-= sizeof_rt_sigframe
;
973 if (record_full_arch_list_add_mem (sp
, SIGNAL_FRAMESIZE
+ sizeof_rt_sigframe
))
976 if (record_full_arch_list_add_end ())
983 ppc_linux_write_pc (struct regcache
*regcache
, CORE_ADDR pc
)
985 struct gdbarch
*gdbarch
= regcache
->arch ();
987 regcache_cooked_write_unsigned (regcache
, gdbarch_pc_regnum (gdbarch
), pc
);
989 /* Set special TRAP register to -1 to prevent the kernel from
990 messing with the PC we just installed, if we happen to be
991 within an interrupted system call that the kernel wants to
994 Note that after we return from the dummy call, the TRAP and
995 ORIG_R3 registers will be automatically restored, and the
996 kernel continues to restart the system call at this point. */
997 if (ppc_linux_trap_reg_p (gdbarch
))
998 regcache_cooked_write_unsigned (regcache
, PPC_TRAP_REGNUM
, -1);
1002 ppc_linux_spu_section (bfd
*abfd
, asection
*asect
, void *user_data
)
1004 return startswith (bfd_section_name (abfd
, asect
), "SPU/");
1007 static const struct target_desc
*
1008 ppc_linux_core_read_description (struct gdbarch
*gdbarch
,
1009 struct target_ops
*target
,
1012 struct ppc_linux_features features
= ppc_linux_no_features
;
1013 asection
*cell
= bfd_sections_find_if (abfd
, ppc_linux_spu_section
, NULL
);
1014 asection
*altivec
= bfd_get_section_by_name (abfd
, ".reg-ppc-vmx");
1015 asection
*vsx
= bfd_get_section_by_name (abfd
, ".reg-ppc-vsx");
1016 asection
*section
= bfd_get_section_by_name (abfd
, ".reg");
1021 switch (bfd_section_size (abfd
, section
))
1024 features
.wordsize
= 4;
1027 features
.wordsize
= 8;
1034 features
.cell
= true;
1037 features
.altivec
= true;
1040 features
.vsx
= true;
1044 if (target_auxv_search (target
, AT_HWCAP
, &hwcap
) != 1)
1047 features
.isa205
= ppc_linux_has_isa205 (hwcap
);
1049 return ppc_linux_match_description (features
);
1053 /* Implementation of `gdbarch_elf_make_msymbol_special', as defined in
1054 gdbarch.h. This implementation is used for the ELFv2 ABI only. */
1057 ppc_elfv2_elf_make_msymbol_special (asymbol
*sym
, struct minimal_symbol
*msym
)
1059 elf_symbol_type
*elf_sym
= (elf_symbol_type
*)sym
;
1061 /* If the symbol is marked as having a local entry point, set a target
1062 flag in the msymbol. We currently only support local entry point
1063 offsets of 8 bytes, which is the only entry point offset ever used
1064 by current compilers. If/when other offsets are ever used, we will
1065 have to use additional target flag bits to store them. */
1066 switch (PPC64_LOCAL_ENTRY_OFFSET (elf_sym
->internal_elf_sym
.st_other
))
1071 MSYMBOL_TARGET_FLAG_1 (msym
) = 1;
1076 /* Implementation of `gdbarch_skip_entrypoint', as defined in
1077 gdbarch.h. This implementation is used for the ELFv2 ABI only. */
1080 ppc_elfv2_skip_entrypoint (struct gdbarch
*gdbarch
, CORE_ADDR pc
)
1082 struct bound_minimal_symbol fun
;
1083 int local_entry_offset
= 0;
1085 fun
= lookup_minimal_symbol_by_pc (pc
);
1086 if (fun
.minsym
== NULL
)
1089 /* See ppc_elfv2_elf_make_msymbol_special for how local entry point
1090 offset values are encoded. */
1091 if (MSYMBOL_TARGET_FLAG_1 (fun
.minsym
))
1092 local_entry_offset
= 8;
1094 if (BMSYMBOL_VALUE_ADDRESS (fun
) <= pc
1095 && pc
< BMSYMBOL_VALUE_ADDRESS (fun
) + local_entry_offset
)
1096 return BMSYMBOL_VALUE_ADDRESS (fun
) + local_entry_offset
;
1101 /* Implementation of `gdbarch_stap_is_single_operand', as defined in
1105 ppc_stap_is_single_operand (struct gdbarch
*gdbarch
, const char *s
)
1107 return (*s
== 'i' /* Literal number. */
1108 || (isdigit (*s
) && s
[1] == '('
1109 && isdigit (s
[2])) /* Displacement. */
1110 || (*s
== '(' && isdigit (s
[1])) /* Register indirection. */
1111 || isdigit (*s
)); /* Register value. */
1114 /* Implementation of `gdbarch_stap_parse_special_token', as defined in
1118 ppc_stap_parse_special_token (struct gdbarch
*gdbarch
,
1119 struct stap_parse_info
*p
)
1121 if (isdigit (*p
->arg
))
1123 /* This temporary pointer is needed because we have to do a lookahead.
1124 We could be dealing with a register displacement, and in such case
1125 we would not need to do anything. */
1126 const char *s
= p
->arg
;
1131 while (isdigit (*s
))
1136 /* It is a register displacement indeed. Returning 0 means we are
1137 deferring the treatment of this case to the generic parser. */
1142 regname
= (char *) alloca (len
+ 2);
1145 strncpy (regname
+ 1, p
->arg
, len
);
1147 regname
[len
] = '\0';
1149 if (user_reg_map_name_to_regnum (gdbarch
, regname
, len
) == -1)
1150 error (_("Invalid register name `%s' on expression `%s'."),
1151 regname
, p
->saved_arg
);
1153 write_exp_elt_opcode (&p
->pstate
, OP_REGISTER
);
1156 write_exp_string (&p
->pstate
, str
);
1157 write_exp_elt_opcode (&p
->pstate
, OP_REGISTER
);
1163 /* All the other tokens should be handled correctly by the generic
1171 /* Cell/B.E. active SPE context tracking support. */
1173 static struct objfile
*spe_context_objfile
= NULL
;
1174 static CORE_ADDR spe_context_lm_addr
= 0;
1175 static CORE_ADDR spe_context_offset
= 0;
1177 static ptid_t spe_context_cache_ptid
;
1178 static CORE_ADDR spe_context_cache_address
;
1180 /* Hook into inferior_created, solib_loaded, and solib_unloaded observers
1181 to track whether we've loaded a version of libspe2 (as static or dynamic
1182 library) that provides the __spe_current_active_context variable. */
1184 ppc_linux_spe_context_lookup (struct objfile
*objfile
)
1186 struct bound_minimal_symbol sym
;
1190 spe_context_objfile
= NULL
;
1191 spe_context_lm_addr
= 0;
1192 spe_context_offset
= 0;
1193 spe_context_cache_ptid
= minus_one_ptid
;
1194 spe_context_cache_address
= 0;
1198 sym
= lookup_minimal_symbol ("__spe_current_active_context", NULL
, objfile
);
1201 spe_context_objfile
= objfile
;
1202 spe_context_lm_addr
= svr4_fetch_objfile_link_map (objfile
);
1203 spe_context_offset
= MSYMBOL_VALUE_RAW_ADDRESS (sym
.minsym
);
1204 spe_context_cache_ptid
= minus_one_ptid
;
1205 spe_context_cache_address
= 0;
1211 ppc_linux_spe_context_inferior_created (struct target_ops
*t
, int from_tty
)
1213 struct objfile
*objfile
;
1215 ppc_linux_spe_context_lookup (NULL
);
1216 ALL_OBJFILES (objfile
)
1217 ppc_linux_spe_context_lookup (objfile
);
1221 ppc_linux_spe_context_solib_loaded (struct so_list
*so
)
1223 if (strstr (so
->so_original_name
, "/libspe") != NULL
)
1225 solib_read_symbols (so
, 0);
1226 ppc_linux_spe_context_lookup (so
->objfile
);
1231 ppc_linux_spe_context_solib_unloaded (struct so_list
*so
)
1233 if (so
->objfile
== spe_context_objfile
)
1234 ppc_linux_spe_context_lookup (NULL
);
1237 /* Retrieve contents of the N'th element in the current thread's
1238 linked SPE context list into ID and NPC. Return the address of
1239 said context element, or 0 if not found. */
1241 ppc_linux_spe_context (int wordsize
, enum bfd_endian byte_order
,
1242 int n
, int *id
, unsigned int *npc
)
1244 CORE_ADDR spe_context
= 0;
1248 /* Quick exit if we have not found __spe_current_active_context. */
1249 if (!spe_context_objfile
)
1252 /* Look up cached address of thread-local variable. */
1253 if (spe_context_cache_ptid
!= inferior_ptid
)
1255 struct target_ops
*target
= current_top_target ();
1259 /* We do not call target_translate_tls_address here, because
1260 svr4_fetch_objfile_link_map may invalidate the frame chain,
1261 which must not do while inside a frame sniffer.
1263 Instead, we have cached the lm_addr value, and use that to
1264 directly call the target's to_get_thread_local_address. */
1265 spe_context_cache_address
1266 = target
->get_thread_local_address (inferior_ptid
,
1267 spe_context_lm_addr
,
1268 spe_context_offset
);
1269 spe_context_cache_ptid
= inferior_ptid
;
1272 CATCH (ex
, RETURN_MASK_ERROR
)
1279 /* Read variable value. */
1280 if (target_read_memory (spe_context_cache_address
, buf
, wordsize
) == 0)
1281 spe_context
= extract_unsigned_integer (buf
, wordsize
, byte_order
);
1283 /* Cyle through to N'th linked list element. */
1284 for (i
= 0; i
< n
&& spe_context
; i
++)
1285 if (target_read_memory (spe_context
+ align_up (12, wordsize
),
1286 buf
, wordsize
) == 0)
1287 spe_context
= extract_unsigned_integer (buf
, wordsize
, byte_order
);
1291 /* Read current context. */
1293 && target_read_memory (spe_context
, buf
, 12) != 0)
1296 /* Extract data elements. */
1300 *id
= extract_signed_integer (buf
, 4, byte_order
);
1302 *npc
= extract_unsigned_integer (buf
+ 4, 4, byte_order
);
1309 /* Cell/B.E. cross-architecture unwinder support. */
1311 struct ppu2spu_cache
1313 struct frame_id frame_id
;
1314 readonly_detached_regcache
*regcache
;
1317 static struct gdbarch
*
1318 ppu2spu_prev_arch (struct frame_info
*this_frame
, void **this_cache
)
1320 struct ppu2spu_cache
*cache
= (struct ppu2spu_cache
*) *this_cache
;
1321 return cache
->regcache
->arch ();
1325 ppu2spu_this_id (struct frame_info
*this_frame
,
1326 void **this_cache
, struct frame_id
*this_id
)
1328 struct ppu2spu_cache
*cache
= (struct ppu2spu_cache
*) *this_cache
;
1329 *this_id
= cache
->frame_id
;
1332 static struct value
*
1333 ppu2spu_prev_register (struct frame_info
*this_frame
,
1334 void **this_cache
, int regnum
)
1336 struct ppu2spu_cache
*cache
= (struct ppu2spu_cache
*) *this_cache
;
1337 struct gdbarch
*gdbarch
= cache
->regcache
->arch ();
1340 buf
= (gdb_byte
*) alloca (register_size (gdbarch
, regnum
));
1342 cache
->regcache
->cooked_read (regnum
, buf
);
1343 return frame_unwind_got_bytes (this_frame
, regnum
, buf
);
1348 struct gdbarch
*gdbarch
;
1351 gdb_byte gprs
[128*16];
1354 static enum register_status
1355 ppu2spu_unwind_register (ppu2spu_data
*data
, int regnum
, gdb_byte
*buf
)
1357 enum bfd_endian byte_order
= gdbarch_byte_order (data
->gdbarch
);
1359 if (regnum
>= 0 && regnum
< SPU_NUM_GPRS
)
1360 memcpy (buf
, data
->gprs
+ 16*regnum
, 16);
1361 else if (regnum
== SPU_ID_REGNUM
)
1362 store_unsigned_integer (buf
, 4, byte_order
, data
->id
);
1363 else if (regnum
== SPU_PC_REGNUM
)
1364 store_unsigned_integer (buf
, 4, byte_order
, data
->npc
);
1366 return REG_UNAVAILABLE
;
1372 ppu2spu_sniffer (const struct frame_unwind
*self
,
1373 struct frame_info
*this_frame
, void **this_prologue_cache
)
1375 struct gdbarch
*gdbarch
= get_frame_arch (this_frame
);
1376 struct gdbarch_tdep
*tdep
= gdbarch_tdep (gdbarch
);
1377 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
1378 struct ppu2spu_data data
;
1379 struct frame_info
*fi
;
1380 CORE_ADDR base
, func
, backchain
, spe_context
;
1384 /* Count the number of SPU contexts already in the frame chain. */
1385 for (fi
= get_next_frame (this_frame
); fi
; fi
= get_next_frame (fi
))
1386 if (get_frame_type (fi
) == ARCH_FRAME
1387 && gdbarch_bfd_arch_info (get_frame_arch (fi
))->arch
== bfd_arch_spu
)
1390 base
= get_frame_sp (this_frame
);
1391 func
= get_frame_pc (this_frame
);
1392 if (target_read_memory (base
, buf
, tdep
->wordsize
))
1394 backchain
= extract_unsigned_integer (buf
, tdep
->wordsize
, byte_order
);
1396 spe_context
= ppc_linux_spe_context (tdep
->wordsize
, byte_order
,
1397 n
, &data
.id
, &data
.npc
);
1398 if (spe_context
&& base
<= spe_context
&& spe_context
< backchain
)
1402 /* Find gdbarch for SPU. */
1403 struct gdbarch_info info
;
1404 gdbarch_info_init (&info
);
1405 info
.bfd_arch_info
= bfd_lookup_arch (bfd_arch_spu
, bfd_mach_spu
);
1406 info
.byte_order
= BFD_ENDIAN_BIG
;
1407 info
.osabi
= GDB_OSABI_LINUX
;
1409 data
.gdbarch
= gdbarch_find_by_info (info
);
1413 xsnprintf (annex
, sizeof annex
, "%d/regs", data
.id
);
1414 if (target_read (current_top_target (), TARGET_OBJECT_SPU
, annex
,
1415 data
.gprs
, 0, sizeof data
.gprs
)
1416 == sizeof data
.gprs
)
1418 auto cooked_read
= [&data
] (int regnum
, gdb_byte
*out_buf
)
1420 return ppu2spu_unwind_register (&data
, regnum
, out_buf
);
1422 struct ppu2spu_cache
*cache
1423 = FRAME_OBSTACK_CALLOC (1, struct ppu2spu_cache
);
1424 std::unique_ptr
<readonly_detached_regcache
> regcache
1425 (new readonly_detached_regcache (data
.gdbarch
, cooked_read
));
1427 cache
->frame_id
= frame_id_build (base
, func
);
1428 cache
->regcache
= regcache
.release ();
1429 *this_prologue_cache
= cache
;
1438 ppu2spu_dealloc_cache (struct frame_info
*self
, void *this_cache
)
1440 struct ppu2spu_cache
*cache
= (struct ppu2spu_cache
*) this_cache
;
1441 delete cache
->regcache
;
1444 static const struct frame_unwind ppu2spu_unwind
= {
1446 default_frame_unwind_stop_reason
,
1448 ppu2spu_prev_register
,
1451 ppu2spu_dealloc_cache
,
1455 /* Initialize linux_record_tdep if not initialized yet.
1456 WORDSIZE is 4 or 8 for 32- or 64-bit PowerPC Linux respectively.
1457 Sizes of data structures are initialized accordingly. */
1460 ppc_init_linux_record_tdep (struct linux_record_tdep
*record_tdep
,
1463 /* Simply return if it had been initialized. */
1464 if (record_tdep
->size_pointer
!= 0)
1467 /* These values are the size of the type that will be used in a system
1468 call. They are obtained from Linux Kernel source. */
1472 record_tdep
->size_pointer
= 8;
1473 record_tdep
->size__old_kernel_stat
= 32;
1474 record_tdep
->size_tms
= 32;
1475 record_tdep
->size_loff_t
= 8;
1476 record_tdep
->size_flock
= 32;
1477 record_tdep
->size_oldold_utsname
= 45;
1478 record_tdep
->size_ustat
= 32;
1479 record_tdep
->size_old_sigaction
= 32;
1480 record_tdep
->size_old_sigset_t
= 8;
1481 record_tdep
->size_rlimit
= 16;
1482 record_tdep
->size_rusage
= 144;
1483 record_tdep
->size_timeval
= 16;
1484 record_tdep
->size_timezone
= 8;
1485 record_tdep
->size_old_gid_t
= 4;
1486 record_tdep
->size_old_uid_t
= 4;
1487 record_tdep
->size_fd_set
= 128;
1488 record_tdep
->size_old_dirent
= 280;
1489 record_tdep
->size_statfs
= 120;
1490 record_tdep
->size_statfs64
= 120;
1491 record_tdep
->size_sockaddr
= 16;
1492 record_tdep
->size_int
= 4;
1493 record_tdep
->size_long
= 8;
1494 record_tdep
->size_ulong
= 8;
1495 record_tdep
->size_msghdr
= 56;
1496 record_tdep
->size_itimerval
= 32;
1497 record_tdep
->size_stat
= 144;
1498 record_tdep
->size_old_utsname
= 325;
1499 record_tdep
->size_sysinfo
= 112;
1500 record_tdep
->size_msqid_ds
= 120;
1501 record_tdep
->size_shmid_ds
= 112;
1502 record_tdep
->size_new_utsname
= 390;
1503 record_tdep
->size_timex
= 208;
1504 record_tdep
->size_mem_dqinfo
= 24;
1505 record_tdep
->size_if_dqblk
= 72;
1506 record_tdep
->size_fs_quota_stat
= 80;
1507 record_tdep
->size_timespec
= 16;
1508 record_tdep
->size_pollfd
= 8;
1509 record_tdep
->size_NFS_FHSIZE
= 32;
1510 record_tdep
->size_knfsd_fh
= 132;
1511 record_tdep
->size_TASK_COMM_LEN
= 16;
1512 record_tdep
->size_sigaction
= 32;
1513 record_tdep
->size_sigset_t
= 8;
1514 record_tdep
->size_siginfo_t
= 128;
1515 record_tdep
->size_cap_user_data_t
= 8;
1516 record_tdep
->size_stack_t
= 24;
1517 record_tdep
->size_off_t
= 8;
1518 record_tdep
->size_stat64
= 104;
1519 record_tdep
->size_gid_t
= 4;
1520 record_tdep
->size_uid_t
= 4;
1521 record_tdep
->size_PAGE_SIZE
= 0x10000; /* 64KB */
1522 record_tdep
->size_flock64
= 32;
1523 record_tdep
->size_io_event
= 32;
1524 record_tdep
->size_iocb
= 64;
1525 record_tdep
->size_epoll_event
= 16;
1526 record_tdep
->size_itimerspec
= 32;
1527 record_tdep
->size_mq_attr
= 64;
1528 record_tdep
->size_termios
= 44;
1529 record_tdep
->size_pid_t
= 4;
1530 record_tdep
->size_winsize
= 8;
1531 record_tdep
->size_serial_struct
= 72;
1532 record_tdep
->size_serial_icounter_struct
= 80;
1533 record_tdep
->size_size_t
= 8;
1534 record_tdep
->size_iovec
= 16;
1535 record_tdep
->size_time_t
= 8;
1537 else if (wordsize
== 4)
1539 record_tdep
->size_pointer
= 4;
1540 record_tdep
->size__old_kernel_stat
= 32;
1541 record_tdep
->size_tms
= 16;
1542 record_tdep
->size_loff_t
= 8;
1543 record_tdep
->size_flock
= 16;
1544 record_tdep
->size_oldold_utsname
= 45;
1545 record_tdep
->size_ustat
= 20;
1546 record_tdep
->size_old_sigaction
= 16;
1547 record_tdep
->size_old_sigset_t
= 4;
1548 record_tdep
->size_rlimit
= 8;
1549 record_tdep
->size_rusage
= 72;
1550 record_tdep
->size_timeval
= 8;
1551 record_tdep
->size_timezone
= 8;
1552 record_tdep
->size_old_gid_t
= 4;
1553 record_tdep
->size_old_uid_t
= 4;
1554 record_tdep
->size_fd_set
= 128;
1555 record_tdep
->size_old_dirent
= 268;
1556 record_tdep
->size_statfs
= 64;
1557 record_tdep
->size_statfs64
= 88;
1558 record_tdep
->size_sockaddr
= 16;
1559 record_tdep
->size_int
= 4;
1560 record_tdep
->size_long
= 4;
1561 record_tdep
->size_ulong
= 4;
1562 record_tdep
->size_msghdr
= 28;
1563 record_tdep
->size_itimerval
= 16;
1564 record_tdep
->size_stat
= 88;
1565 record_tdep
->size_old_utsname
= 325;
1566 record_tdep
->size_sysinfo
= 64;
1567 record_tdep
->size_msqid_ds
= 68;
1568 record_tdep
->size_shmid_ds
= 60;
1569 record_tdep
->size_new_utsname
= 390;
1570 record_tdep
->size_timex
= 128;
1571 record_tdep
->size_mem_dqinfo
= 24;
1572 record_tdep
->size_if_dqblk
= 72;
1573 record_tdep
->size_fs_quota_stat
= 80;
1574 record_tdep
->size_timespec
= 8;
1575 record_tdep
->size_pollfd
= 8;
1576 record_tdep
->size_NFS_FHSIZE
= 32;
1577 record_tdep
->size_knfsd_fh
= 132;
1578 record_tdep
->size_TASK_COMM_LEN
= 16;
1579 record_tdep
->size_sigaction
= 20;
1580 record_tdep
->size_sigset_t
= 8;
1581 record_tdep
->size_siginfo_t
= 128;
1582 record_tdep
->size_cap_user_data_t
= 4;
1583 record_tdep
->size_stack_t
= 12;
1584 record_tdep
->size_off_t
= 4;
1585 record_tdep
->size_stat64
= 104;
1586 record_tdep
->size_gid_t
= 4;
1587 record_tdep
->size_uid_t
= 4;
1588 record_tdep
->size_PAGE_SIZE
= 0x10000; /* 64KB */
1589 record_tdep
->size_flock64
= 32;
1590 record_tdep
->size_io_event
= 32;
1591 record_tdep
->size_iocb
= 64;
1592 record_tdep
->size_epoll_event
= 16;
1593 record_tdep
->size_itimerspec
= 16;
1594 record_tdep
->size_mq_attr
= 32;
1595 record_tdep
->size_termios
= 44;
1596 record_tdep
->size_pid_t
= 4;
1597 record_tdep
->size_winsize
= 8;
1598 record_tdep
->size_serial_struct
= 60;
1599 record_tdep
->size_serial_icounter_struct
= 80;
1600 record_tdep
->size_size_t
= 4;
1601 record_tdep
->size_iovec
= 8;
1602 record_tdep
->size_time_t
= 4;
1605 internal_error (__FILE__
, __LINE__
, _("unexpected wordsize"));
1607 /* These values are the second argument of system call "sys_fcntl"
1608 and "sys_fcntl64". They are obtained from Linux Kernel source. */
1609 record_tdep
->fcntl_F_GETLK
= 5;
1610 record_tdep
->fcntl_F_GETLK64
= 12;
1611 record_tdep
->fcntl_F_SETLK64
= 13;
1612 record_tdep
->fcntl_F_SETLKW64
= 14;
1614 record_tdep
->arg1
= PPC_R0_REGNUM
+ 3;
1615 record_tdep
->arg2
= PPC_R0_REGNUM
+ 4;
1616 record_tdep
->arg3
= PPC_R0_REGNUM
+ 5;
1617 record_tdep
->arg4
= PPC_R0_REGNUM
+ 6;
1618 record_tdep
->arg5
= PPC_R0_REGNUM
+ 7;
1619 record_tdep
->arg6
= PPC_R0_REGNUM
+ 8;
1621 /* These values are the second argument of system call "sys_ioctl".
1622 They are obtained from Linux Kernel source.
1623 See arch/powerpc/include/uapi/asm/ioctls.h. */
1624 record_tdep
->ioctl_TCGETS
= 0x403c7413;
1625 record_tdep
->ioctl_TCSETS
= 0x803c7414;
1626 record_tdep
->ioctl_TCSETSW
= 0x803c7415;
1627 record_tdep
->ioctl_TCSETSF
= 0x803c7416;
1628 record_tdep
->ioctl_TCGETA
= 0x40147417;
1629 record_tdep
->ioctl_TCSETA
= 0x80147418;
1630 record_tdep
->ioctl_TCSETAW
= 0x80147419;
1631 record_tdep
->ioctl_TCSETAF
= 0x8014741c;
1632 record_tdep
->ioctl_TCSBRK
= 0x2000741d;
1633 record_tdep
->ioctl_TCXONC
= 0x2000741e;
1634 record_tdep
->ioctl_TCFLSH
= 0x2000741f;
1635 record_tdep
->ioctl_TIOCEXCL
= 0x540c;
1636 record_tdep
->ioctl_TIOCNXCL
= 0x540d;
1637 record_tdep
->ioctl_TIOCSCTTY
= 0x540e;
1638 record_tdep
->ioctl_TIOCGPGRP
= 0x40047477;
1639 record_tdep
->ioctl_TIOCSPGRP
= 0x80047476;
1640 record_tdep
->ioctl_TIOCOUTQ
= 0x40047473;
1641 record_tdep
->ioctl_TIOCSTI
= 0x5412;
1642 record_tdep
->ioctl_TIOCGWINSZ
= 0x40087468;
1643 record_tdep
->ioctl_TIOCSWINSZ
= 0x80087467;
1644 record_tdep
->ioctl_TIOCMGET
= 0x5415;
1645 record_tdep
->ioctl_TIOCMBIS
= 0x5416;
1646 record_tdep
->ioctl_TIOCMBIC
= 0x5417;
1647 record_tdep
->ioctl_TIOCMSET
= 0x5418;
1648 record_tdep
->ioctl_TIOCGSOFTCAR
= 0x5419;
1649 record_tdep
->ioctl_TIOCSSOFTCAR
= 0x541a;
1650 record_tdep
->ioctl_FIONREAD
= 0x4004667f;
1651 record_tdep
->ioctl_TIOCINQ
= 0x4004667f;
1652 record_tdep
->ioctl_TIOCLINUX
= 0x541c;
1653 record_tdep
->ioctl_TIOCCONS
= 0x541d;
1654 record_tdep
->ioctl_TIOCGSERIAL
= 0x541e;
1655 record_tdep
->ioctl_TIOCSSERIAL
= 0x541f;
1656 record_tdep
->ioctl_TIOCPKT
= 0x5420;
1657 record_tdep
->ioctl_FIONBIO
= 0x8004667e;
1658 record_tdep
->ioctl_TIOCNOTTY
= 0x5422;
1659 record_tdep
->ioctl_TIOCSETD
= 0x5423;
1660 record_tdep
->ioctl_TIOCGETD
= 0x5424;
1661 record_tdep
->ioctl_TCSBRKP
= 0x5425;
1662 record_tdep
->ioctl_TIOCSBRK
= 0x5427;
1663 record_tdep
->ioctl_TIOCCBRK
= 0x5428;
1664 record_tdep
->ioctl_TIOCGSID
= 0x5429;
1665 record_tdep
->ioctl_TIOCGPTN
= 0x40045430;
1666 record_tdep
->ioctl_TIOCSPTLCK
= 0x80045431;
1667 record_tdep
->ioctl_FIONCLEX
= 0x20006602;
1668 record_tdep
->ioctl_FIOCLEX
= 0x20006601;
1669 record_tdep
->ioctl_FIOASYNC
= 0x8004667d;
1670 record_tdep
->ioctl_TIOCSERCONFIG
= 0x5453;
1671 record_tdep
->ioctl_TIOCSERGWILD
= 0x5454;
1672 record_tdep
->ioctl_TIOCSERSWILD
= 0x5455;
1673 record_tdep
->ioctl_TIOCGLCKTRMIOS
= 0x5456;
1674 record_tdep
->ioctl_TIOCSLCKTRMIOS
= 0x5457;
1675 record_tdep
->ioctl_TIOCSERGSTRUCT
= 0x5458;
1676 record_tdep
->ioctl_TIOCSERGETLSR
= 0x5459;
1677 record_tdep
->ioctl_TIOCSERGETMULTI
= 0x545a;
1678 record_tdep
->ioctl_TIOCSERSETMULTI
= 0x545b;
1679 record_tdep
->ioctl_TIOCMIWAIT
= 0x545c;
1680 record_tdep
->ioctl_TIOCGICOUNT
= 0x545d;
1681 record_tdep
->ioctl_FIOQSIZE
= 0x40086680;
1684 /* Return a floating-point format for a floating-point variable of
1685 length LEN in bits. If non-NULL, NAME is the name of its type.
1686 If no suitable type is found, return NULL. */
1688 const struct floatformat
**
1689 ppc_floatformat_for_type (struct gdbarch
*gdbarch
,
1690 const char *name
, int len
)
1692 if (len
== 128 && name
)
1694 if (strcmp (name
, "__float128") == 0
1695 || strcmp (name
, "_Float128") == 0
1696 || strcmp (name
, "_Float64x") == 0
1697 || strcmp (name
, "complex _Float128") == 0
1698 || strcmp (name
, "complex _Float64x") == 0)
1699 return floatformats_ia64_quad
;
1701 if (strcmp (name
, "__ibm128") == 0)
1702 return floatformats_ibm_long_double
;
1705 return default_floatformat_for_type (gdbarch
, name
, len
);
1709 ppc_linux_init_abi (struct gdbarch_info info
,
1710 struct gdbarch
*gdbarch
)
1712 struct gdbarch_tdep
*tdep
= gdbarch_tdep (gdbarch
);
1713 struct tdesc_arch_data
*tdesc_data
= info
.tdesc_data
;
1714 static const char *const stap_integer_prefixes
[] = { "i", NULL
};
1715 static const char *const stap_register_indirection_prefixes
[] = { "(",
1717 static const char *const stap_register_indirection_suffixes
[] = { ")",
1720 linux_init_abi (info
, gdbarch
);
1722 /* PPC GNU/Linux uses either 64-bit or 128-bit long doubles; where
1723 128-bit, they can be either IBM long double or IEEE quad long double.
1724 The 64-bit long double case will be detected automatically using
1725 the size specified in debug info. We use a .gnu.attribute flag
1726 to distinguish between the IBM long double and IEEE quad cases. */
1727 set_gdbarch_long_double_bit (gdbarch
, 16 * TARGET_CHAR_BIT
);
1728 if (tdep
->long_double_abi
== POWERPC_LONG_DOUBLE_IEEE128
)
1729 set_gdbarch_long_double_format (gdbarch
, floatformats_ia64_quad
);
1731 set_gdbarch_long_double_format (gdbarch
, floatformats_ibm_long_double
);
1733 /* Support for floating-point data type variants. */
1734 set_gdbarch_floatformat_for_type (gdbarch
, ppc_floatformat_for_type
);
1736 /* Handle inferior calls during interrupted system calls. */
1737 set_gdbarch_write_pc (gdbarch
, ppc_linux_write_pc
);
1739 /* Get the syscall number from the arch's register. */
1740 set_gdbarch_get_syscall_number (gdbarch
, ppc_linux_get_syscall_number
);
1742 /* SystemTap functions. */
1743 set_gdbarch_stap_integer_prefixes (gdbarch
, stap_integer_prefixes
);
1744 set_gdbarch_stap_register_indirection_prefixes (gdbarch
,
1745 stap_register_indirection_prefixes
);
1746 set_gdbarch_stap_register_indirection_suffixes (gdbarch
,
1747 stap_register_indirection_suffixes
);
1748 set_gdbarch_stap_gdb_register_prefix (gdbarch
, "r");
1749 set_gdbarch_stap_is_single_operand (gdbarch
, ppc_stap_is_single_operand
);
1750 set_gdbarch_stap_parse_special_token (gdbarch
,
1751 ppc_stap_parse_special_token
);
1753 if (tdep
->wordsize
== 4)
1755 /* Until November 2001, gcc did not comply with the 32 bit SysV
1756 R4 ABI requirement that structures less than or equal to 8
1757 bytes should be returned in registers. Instead GCC was using
1758 the AIX/PowerOpen ABI - everything returned in memory
1759 (well ignoring vectors that is). When this was corrected, it
1760 wasn't fixed for GNU/Linux native platform. Use the
1761 PowerOpen struct convention. */
1762 set_gdbarch_return_value (gdbarch
, ppc_linux_return_value
);
1764 set_gdbarch_memory_remove_breakpoint (gdbarch
,
1765 ppc_linux_memory_remove_breakpoint
);
1767 /* Shared library handling. */
1768 set_gdbarch_skip_trampoline_code (gdbarch
, ppc_skip_trampoline_code
);
1769 set_solib_svr4_fetch_link_map_offsets
1770 (gdbarch
, svr4_ilp32_fetch_link_map_offsets
);
1772 /* Setting the correct XML syscall filename. */
1773 set_xml_syscall_file_name (gdbarch
, XML_SYSCALL_FILENAME_PPC
);
1776 tramp_frame_prepend_unwinder (gdbarch
,
1777 &ppc32_linux_sigaction_tramp_frame
);
1778 tramp_frame_prepend_unwinder (gdbarch
,
1779 &ppc32_linux_sighandler_tramp_frame
);
1781 /* BFD target for core files. */
1782 if (gdbarch_byte_order (gdbarch
) == BFD_ENDIAN_LITTLE
)
1783 set_gdbarch_gcore_bfd_target (gdbarch
, "elf32-powerpcle");
1785 set_gdbarch_gcore_bfd_target (gdbarch
, "elf32-powerpc");
1787 if (powerpc_so_ops
.in_dynsym_resolve_code
== NULL
)
1789 powerpc_so_ops
= svr4_so_ops
;
1790 /* Override dynamic resolve function. */
1791 powerpc_so_ops
.in_dynsym_resolve_code
=
1792 powerpc_linux_in_dynsym_resolve_code
;
1794 set_solib_ops (gdbarch
, &powerpc_so_ops
);
1796 set_gdbarch_skip_solib_resolver (gdbarch
, glibc_skip_solib_resolver
);
1799 if (tdep
->wordsize
== 8)
1801 if (tdep
->elf_abi
== POWERPC_ELF_V1
)
1803 /* Handle PPC GNU/Linux 64-bit function pointers (which are really
1804 function descriptors). */
1805 set_gdbarch_convert_from_func_ptr_addr
1806 (gdbarch
, ppc64_convert_from_func_ptr_addr
);
1808 set_gdbarch_elf_make_msymbol_special
1809 (gdbarch
, ppc64_elf_make_msymbol_special
);
1813 set_gdbarch_elf_make_msymbol_special
1814 (gdbarch
, ppc_elfv2_elf_make_msymbol_special
);
1816 set_gdbarch_skip_entrypoint (gdbarch
, ppc_elfv2_skip_entrypoint
);
1819 /* Shared library handling. */
1820 set_gdbarch_skip_trampoline_code (gdbarch
, ppc64_skip_trampoline_code
);
1821 set_solib_svr4_fetch_link_map_offsets
1822 (gdbarch
, svr4_lp64_fetch_link_map_offsets
);
1824 /* Setting the correct XML syscall filename. */
1825 set_xml_syscall_file_name (gdbarch
, XML_SYSCALL_FILENAME_PPC64
);
1828 tramp_frame_prepend_unwinder (gdbarch
,
1829 &ppc64_linux_sigaction_tramp_frame
);
1830 tramp_frame_prepend_unwinder (gdbarch
,
1831 &ppc64_linux_sighandler_tramp_frame
);
1833 /* BFD target for core files. */
1834 if (gdbarch_byte_order (gdbarch
) == BFD_ENDIAN_LITTLE
)
1835 set_gdbarch_gcore_bfd_target (gdbarch
, "elf64-powerpcle");
1837 set_gdbarch_gcore_bfd_target (gdbarch
, "elf64-powerpc");
1840 set_gdbarch_core_read_description (gdbarch
, ppc_linux_core_read_description
);
1841 set_gdbarch_iterate_over_regset_sections (gdbarch
,
1842 ppc_linux_iterate_over_regset_sections
);
1844 /* Enable TLS support. */
1845 set_gdbarch_fetch_tls_load_module_address (gdbarch
,
1846 svr4_fetch_objfile_link_map
);
1850 const struct tdesc_feature
*feature
;
1852 /* If we have target-described registers, then we can safely
1853 reserve a number for PPC_ORIG_R3_REGNUM and PPC_TRAP_REGNUM
1854 (whether they are described or not). */
1855 gdb_assert (gdbarch_num_regs (gdbarch
) <= PPC_ORIG_R3_REGNUM
);
1856 set_gdbarch_num_regs (gdbarch
, PPC_TRAP_REGNUM
+ 1);
1858 /* If they are present, then assign them to the reserved number. */
1859 feature
= tdesc_find_feature (info
.target_desc
,
1860 "org.gnu.gdb.power.linux");
1861 if (feature
!= NULL
)
1863 tdesc_numbered_register (feature
, tdesc_data
,
1864 PPC_ORIG_R3_REGNUM
, "orig_r3");
1865 tdesc_numbered_register (feature
, tdesc_data
,
1866 PPC_TRAP_REGNUM
, "trap");
1870 /* Enable Cell/B.E. if supported by the target. */
1871 if (tdesc_compatible_p (info
.target_desc
,
1872 bfd_lookup_arch (bfd_arch_spu
, bfd_mach_spu
)))
1874 /* Cell/B.E. multi-architecture support. */
1875 set_spu_solib_ops (gdbarch
);
1877 /* Cell/B.E. cross-architecture unwinder support. */
1878 frame_unwind_prepend_unwinder (gdbarch
, &ppu2spu_unwind
);
1880 /* We need to support more than "addr_bit" significant address bits
1881 in order to support SPUADDR_ADDR encoded values. */
1882 set_gdbarch_significant_addr_bit (gdbarch
, 64);
1885 set_gdbarch_displaced_step_location (gdbarch
,
1886 linux_displaced_step_location
);
1888 /* Support reverse debugging. */
1889 set_gdbarch_process_record (gdbarch
, ppc_process_record
);
1890 set_gdbarch_process_record_signal (gdbarch
, ppc_linux_record_signal
);
1891 tdep
->ppc_syscall_record
= ppc_linux_syscall_record
;
1893 ppc_init_linux_record_tdep (&ppc_linux_record_tdep
, 4);
1894 ppc_init_linux_record_tdep (&ppc64_linux_record_tdep
, 8);
1898 _initialize_ppc_linux_tdep (void)
1900 /* Register for all sub-familes of the POWER/PowerPC: 32-bit and
1901 64-bit PowerPC, and the older rs6k. */
1902 gdbarch_register_osabi (bfd_arch_powerpc
, bfd_mach_ppc
, GDB_OSABI_LINUX
,
1903 ppc_linux_init_abi
);
1904 gdbarch_register_osabi (bfd_arch_powerpc
, bfd_mach_ppc64
, GDB_OSABI_LINUX
,
1905 ppc_linux_init_abi
);
1906 gdbarch_register_osabi (bfd_arch_rs6000
, bfd_mach_rs6k
, GDB_OSABI_LINUX
,
1907 ppc_linux_init_abi
);
1909 /* Attach to observers to track __spe_current_active_context. */
1910 gdb::observers::inferior_created
.attach (ppc_linux_spe_context_inferior_created
);
1911 gdb::observers::solib_loaded
.attach (ppc_linux_spe_context_solib_loaded
);
1912 gdb::observers::solib_unloaded
.attach (ppc_linux_spe_context_solib_unloaded
);
1914 /* Initialize the Linux target descriptions. */
1915 initialize_tdesc_powerpc_32l ();
1916 initialize_tdesc_powerpc_altivec32l ();
1917 initialize_tdesc_powerpc_cell32l ();
1918 initialize_tdesc_powerpc_vsx32l ();
1919 initialize_tdesc_powerpc_isa205_32l ();
1920 initialize_tdesc_powerpc_isa205_altivec32l ();
1921 initialize_tdesc_powerpc_isa205_vsx32l ();
1922 initialize_tdesc_powerpc_64l ();
1923 initialize_tdesc_powerpc_altivec64l ();
1924 initialize_tdesc_powerpc_cell64l ();
1925 initialize_tdesc_powerpc_vsx64l ();
1926 initialize_tdesc_powerpc_isa205_64l ();
1927 initialize_tdesc_powerpc_isa205_altivec64l ();
1928 initialize_tdesc_powerpc_isa205_vsx64l ();
1929 initialize_tdesc_powerpc_e500l ();