1 /* Target-dependent code for GNU/Linux, architecture independent.
3 Copyright (C) 2009-2014 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/>. */
22 #include "linux-tdep.h"
25 #include "gdbthread.h"
29 #include "elf/common.h"
30 #include "elf-bfd.h" /* for elfcore_write_* */
32 #include "cli/cli-utils.h"
33 #include "arch-utils.h"
34 #include "gdb_obstack.h"
38 /* This enum represents the signals' numbers on a generic architecture
39 running the Linux kernel. The definition of "generic" comes from
40 the file <include/uapi/asm-generic/signal.h>, from the Linux kernel
41 tree, which is the "de facto" implementation of signal numbers to
42 be used by new architecture ports.
44 For those architectures which have differences between the generic
45 standard (e.g., Alpha), we define the different signals (and *only*
46 those) in the specific target-dependent file (e.g.,
47 alpha-linux-tdep.c, for Alpha). Please refer to the architecture's
48 tdep file for more information.
50 ARM deserves a special mention here. On the file
51 <arch/arm/include/uapi/asm/signal.h>, it defines only one different
52 (and ARM-only) signal, which is SIGSWI, with the same number as
53 SIGRTMIN. This signal is used only for a very specific target,
54 called ArthurOS (from RISCOS). Therefore, we do not handle it on
55 the ARM-tdep file, and we can safely use the generic signal handler
58 As stated above, this enum is derived from
59 <include/uapi/asm-generic/signal.h>, from the Linux kernel
94 LINUX_SIGPOLL = LINUX_SIGIO,
103 static struct gdbarch_data *linux_gdbarch_data_handle;
105 struct linux_gdbarch_data
107 struct type *siginfo_type;
111 init_linux_gdbarch_data (struct gdbarch *gdbarch)
113 return GDBARCH_OBSTACK_ZALLOC (gdbarch, struct linux_gdbarch_data);
116 static struct linux_gdbarch_data *
117 get_linux_gdbarch_data (struct gdbarch *gdbarch)
119 return gdbarch_data (gdbarch, linux_gdbarch_data_handle);
122 /* This function is suitable for architectures that don't
123 extend/override the standard siginfo structure. */
126 linux_get_siginfo_type (struct gdbarch *gdbarch)
128 struct linux_gdbarch_data *linux_gdbarch_data;
129 struct type *int_type, *uint_type, *long_type, *void_ptr_type;
130 struct type *uid_type, *pid_type;
131 struct type *sigval_type, *clock_type;
132 struct type *siginfo_type, *sifields_type;
135 linux_gdbarch_data = get_linux_gdbarch_data (gdbarch);
136 if (linux_gdbarch_data->siginfo_type != NULL)
137 return linux_gdbarch_data->siginfo_type;
139 int_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch),
141 uint_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch),
143 long_type = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch),
145 void_ptr_type = lookup_pointer_type (builtin_type (gdbarch)->builtin_void);
148 sigval_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION);
149 TYPE_NAME (sigval_type) = xstrdup ("sigval_t");
150 append_composite_type_field (sigval_type, "sival_int", int_type);
151 append_composite_type_field (sigval_type, "sival_ptr", void_ptr_type);
154 pid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF,
155 TYPE_LENGTH (int_type), "__pid_t");
156 TYPE_TARGET_TYPE (pid_type) = int_type;
157 TYPE_TARGET_STUB (pid_type) = 1;
160 uid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF,
161 TYPE_LENGTH (uint_type), "__uid_t");
162 TYPE_TARGET_TYPE (uid_type) = uint_type;
163 TYPE_TARGET_STUB (uid_type) = 1;
166 clock_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF,
167 TYPE_LENGTH (long_type), "__clock_t");
168 TYPE_TARGET_TYPE (clock_type) = long_type;
169 TYPE_TARGET_STUB (clock_type) = 1;
172 sifields_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION);
175 const int si_max_size = 128;
177 int size_of_int = gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT;
180 if (gdbarch_ptr_bit (gdbarch) == 64)
181 si_pad_size = (si_max_size / size_of_int) - 4;
183 si_pad_size = (si_max_size / size_of_int) - 3;
184 append_composite_type_field (sifields_type, "_pad",
185 init_vector_type (int_type, si_pad_size));
189 type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
190 append_composite_type_field (type, "si_pid", pid_type);
191 append_composite_type_field (type, "si_uid", uid_type);
192 append_composite_type_field (sifields_type, "_kill", type);
195 type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
196 append_composite_type_field (type, "si_tid", int_type);
197 append_composite_type_field (type, "si_overrun", int_type);
198 append_composite_type_field (type, "si_sigval", sigval_type);
199 append_composite_type_field (sifields_type, "_timer", type);
202 type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
203 append_composite_type_field (type, "si_pid", pid_type);
204 append_composite_type_field (type, "si_uid", uid_type);
205 append_composite_type_field (type, "si_sigval", sigval_type);
206 append_composite_type_field (sifields_type, "_rt", type);
209 type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
210 append_composite_type_field (type, "si_pid", pid_type);
211 append_composite_type_field (type, "si_uid", uid_type);
212 append_composite_type_field (type, "si_status", int_type);
213 append_composite_type_field (type, "si_utime", clock_type);
214 append_composite_type_field (type, "si_stime", clock_type);
215 append_composite_type_field (sifields_type, "_sigchld", type);
218 type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
219 append_composite_type_field (type, "si_addr", void_ptr_type);
220 append_composite_type_field (sifields_type, "_sigfault", type);
223 type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
224 append_composite_type_field (type, "si_band", long_type);
225 append_composite_type_field (type, "si_fd", int_type);
226 append_composite_type_field (sifields_type, "_sigpoll", type);
229 siginfo_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
230 TYPE_NAME (siginfo_type) = xstrdup ("siginfo");
231 append_composite_type_field (siginfo_type, "si_signo", int_type);
232 append_composite_type_field (siginfo_type, "si_errno", int_type);
233 append_composite_type_field (siginfo_type, "si_code", int_type);
234 append_composite_type_field_aligned (siginfo_type,
235 "_sifields", sifields_type,
236 TYPE_LENGTH (long_type));
238 linux_gdbarch_data->siginfo_type = siginfo_type;
243 /* Return true if the target is running on uClinux instead of normal
247 linux_is_uclinux (void)
251 return (target_auxv_search (¤t_target, AT_NULL, &dummy) > 0
252 && target_auxv_search (¤t_target, AT_PAGESZ, &dummy) == 0);
256 linux_has_shared_address_space (struct gdbarch *gdbarch)
258 return linux_is_uclinux ();
261 /* This is how we want PTIDs from core files to be printed. */
264 linux_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid)
268 if (ptid_get_lwp (ptid) != 0)
270 snprintf (buf, sizeof (buf), "LWP %ld", ptid_get_lwp (ptid));
274 return normal_pid_to_str (ptid);
277 /* Service function for corefiles and info proc. */
280 read_mapping (const char *line,
281 ULONGEST *addr, ULONGEST *endaddr,
282 const char **permissions, size_t *permissions_len,
284 const char **device, size_t *device_len,
286 const char **filename)
288 const char *p = line;
290 *addr = strtoulst (p, &p, 16);
293 *endaddr = strtoulst (p, &p, 16);
295 p = skip_spaces_const (p);
297 while (*p && !isspace (*p))
299 *permissions_len = p - *permissions;
301 *offset = strtoulst (p, &p, 16);
303 p = skip_spaces_const (p);
305 while (*p && !isspace (*p))
307 *device_len = p - *device;
309 *inode = strtoulst (p, &p, 10);
311 p = skip_spaces_const (p);
315 /* Implement the "info proc" command. */
318 linux_info_proc (struct gdbarch *gdbarch, char *args,
319 enum info_proc_what what)
321 /* A long is used for pid instead of an int to avoid a loss of precision
322 compiler warning from the output of strtoul. */
324 int cmdline_f = (what == IP_MINIMAL || what == IP_CMDLINE || what == IP_ALL);
325 int cwd_f = (what == IP_MINIMAL || what == IP_CWD || what == IP_ALL);
326 int exe_f = (what == IP_MINIMAL || what == IP_EXE || what == IP_ALL);
327 int mappings_f = (what == IP_MAPPINGS || what == IP_ALL);
328 int status_f = (what == IP_STATUS || what == IP_ALL);
329 int stat_f = (what == IP_STAT || what == IP_ALL);
334 if (args && isdigit (args[0]))
335 pid = strtoul (args, &args, 10);
338 if (!target_has_execution)
339 error (_("No current process: you must name one."));
340 if (current_inferior ()->fake_pid_p)
341 error (_("Can't determine the current process's PID: you must name one."));
343 pid = current_inferior ()->pid;
346 args = skip_spaces (args);
348 error (_("Too many parameters: %s"), args);
350 printf_filtered (_("process %ld\n"), pid);
353 xsnprintf (filename, sizeof filename, "/proc/%ld/cmdline", pid);
354 data = target_fileio_read_stralloc (filename);
357 struct cleanup *cleanup = make_cleanup (xfree, data);
358 printf_filtered ("cmdline = '%s'\n", data);
359 do_cleanups (cleanup);
362 warning (_("unable to open /proc file '%s'"), filename);
366 xsnprintf (filename, sizeof filename, "/proc/%ld/cwd", pid);
367 data = target_fileio_readlink (filename, &target_errno);
370 struct cleanup *cleanup = make_cleanup (xfree, data);
371 printf_filtered ("cwd = '%s'\n", data);
372 do_cleanups (cleanup);
375 warning (_("unable to read link '%s'"), filename);
379 xsnprintf (filename, sizeof filename, "/proc/%ld/exe", pid);
380 data = target_fileio_readlink (filename, &target_errno);
383 struct cleanup *cleanup = make_cleanup (xfree, data);
384 printf_filtered ("exe = '%s'\n", data);
385 do_cleanups (cleanup);
388 warning (_("unable to read link '%s'"), filename);
392 xsnprintf (filename, sizeof filename, "/proc/%ld/maps", pid);
393 data = target_fileio_read_stralloc (filename);
396 struct cleanup *cleanup = make_cleanup (xfree, data);
399 printf_filtered (_("Mapped address spaces:\n\n"));
400 if (gdbarch_addr_bit (gdbarch) == 32)
402 printf_filtered ("\t%10s %10s %10s %10s %s\n",
405 " Size", " Offset", "objfile");
409 printf_filtered (" %18s %18s %10s %10s %s\n",
412 " Size", " Offset", "objfile");
415 for (line = strtok (data, "\n"); line; line = strtok (NULL, "\n"))
417 ULONGEST addr, endaddr, offset, inode;
418 const char *permissions, *device, *filename;
419 size_t permissions_len, device_len;
421 read_mapping (line, &addr, &endaddr,
422 &permissions, &permissions_len,
423 &offset, &device, &device_len,
426 if (gdbarch_addr_bit (gdbarch) == 32)
428 printf_filtered ("\t%10s %10s %10s %10s %s\n",
429 paddress (gdbarch, addr),
430 paddress (gdbarch, endaddr),
431 hex_string (endaddr - addr),
433 *filename? filename : "");
437 printf_filtered (" %18s %18s %10s %10s %s\n",
438 paddress (gdbarch, addr),
439 paddress (gdbarch, endaddr),
440 hex_string (endaddr - addr),
442 *filename? filename : "");
446 do_cleanups (cleanup);
449 warning (_("unable to open /proc file '%s'"), filename);
453 xsnprintf (filename, sizeof filename, "/proc/%ld/status", pid);
454 data = target_fileio_read_stralloc (filename);
457 struct cleanup *cleanup = make_cleanup (xfree, data);
458 puts_filtered (data);
459 do_cleanups (cleanup);
462 warning (_("unable to open /proc file '%s'"), filename);
466 xsnprintf (filename, sizeof filename, "/proc/%ld/stat", pid);
467 data = target_fileio_read_stralloc (filename);
470 struct cleanup *cleanup = make_cleanup (xfree, data);
471 const char *p = data;
473 printf_filtered (_("Process: %s\n"),
474 pulongest (strtoulst (p, &p, 10)));
476 p = skip_spaces_const (p);
479 const char *ep = strchr (p, ')');
482 printf_filtered ("Exec file: %.*s\n",
483 (int) (ep - p - 1), p + 1);
488 p = skip_spaces_const (p);
490 printf_filtered (_("State: %c\n"), *p++);
493 printf_filtered (_("Parent process: %s\n"),
494 pulongest (strtoulst (p, &p, 10)));
496 printf_filtered (_("Process group: %s\n"),
497 pulongest (strtoulst (p, &p, 10)));
499 printf_filtered (_("Session id: %s\n"),
500 pulongest (strtoulst (p, &p, 10)));
502 printf_filtered (_("TTY: %s\n"),
503 pulongest (strtoulst (p, &p, 10)));
505 printf_filtered (_("TTY owner process group: %s\n"),
506 pulongest (strtoulst (p, &p, 10)));
509 printf_filtered (_("Flags: %s\n"),
510 hex_string (strtoulst (p, &p, 10)));
512 printf_filtered (_("Minor faults (no memory page): %s\n"),
513 pulongest (strtoulst (p, &p, 10)));
515 printf_filtered (_("Minor faults, children: %s\n"),
516 pulongest (strtoulst (p, &p, 10)));
518 printf_filtered (_("Major faults (memory page faults): %s\n"),
519 pulongest (strtoulst (p, &p, 10)));
521 printf_filtered (_("Major faults, children: %s\n"),
522 pulongest (strtoulst (p, &p, 10)));
524 printf_filtered (_("utime: %s\n"),
525 pulongest (strtoulst (p, &p, 10)));
527 printf_filtered (_("stime: %s\n"),
528 pulongest (strtoulst (p, &p, 10)));
530 printf_filtered (_("utime, children: %s\n"),
531 pulongest (strtoulst (p, &p, 10)));
533 printf_filtered (_("stime, children: %s\n"),
534 pulongest (strtoulst (p, &p, 10)));
536 printf_filtered (_("jiffies remaining in current "
538 pulongest (strtoulst (p, &p, 10)));
540 printf_filtered (_("'nice' value: %s\n"),
541 pulongest (strtoulst (p, &p, 10)));
543 printf_filtered (_("jiffies until next timeout: %s\n"),
544 pulongest (strtoulst (p, &p, 10)));
546 printf_filtered (_("jiffies until next SIGALRM: %s\n"),
547 pulongest (strtoulst (p, &p, 10)));
549 printf_filtered (_("start time (jiffies since "
550 "system boot): %s\n"),
551 pulongest (strtoulst (p, &p, 10)));
553 printf_filtered (_("Virtual memory size: %s\n"),
554 pulongest (strtoulst (p, &p, 10)));
556 printf_filtered (_("Resident set size: %s\n"),
557 pulongest (strtoulst (p, &p, 10)));
559 printf_filtered (_("rlim: %s\n"),
560 pulongest (strtoulst (p, &p, 10)));
562 printf_filtered (_("Start of text: %s\n"),
563 hex_string (strtoulst (p, &p, 10)));
565 printf_filtered (_("End of text: %s\n"),
566 hex_string (strtoulst (p, &p, 10)));
568 printf_filtered (_("Start of stack: %s\n"),
569 hex_string (strtoulst (p, &p, 10)));
570 #if 0 /* Don't know how architecture-dependent the rest is...
571 Anyway the signal bitmap info is available from "status". */
573 printf_filtered (_("Kernel stack pointer: %s\n"),
574 hex_string (strtoulst (p, &p, 10)));
576 printf_filtered (_("Kernel instr pointer: %s\n"),
577 hex_string (strtoulst (p, &p, 10)));
579 printf_filtered (_("Pending signals bitmap: %s\n"),
580 hex_string (strtoulst (p, &p, 10)));
582 printf_filtered (_("Blocked signals bitmap: %s\n"),
583 hex_string (strtoulst (p, &p, 10)));
585 printf_filtered (_("Ignored signals bitmap: %s\n"),
586 hex_string (strtoulst (p, &p, 10)));
588 printf_filtered (_("Catched signals bitmap: %s\n"),
589 hex_string (strtoulst (p, &p, 10)));
591 printf_filtered (_("wchan (system call): %s\n"),
592 hex_string (strtoulst (p, &p, 10)));
594 do_cleanups (cleanup);
597 warning (_("unable to open /proc file '%s'"), filename);
601 /* Implement "info proc mappings" for a corefile. */
604 linux_core_info_proc_mappings (struct gdbarch *gdbarch, char *args)
607 ULONGEST count, page_size;
608 unsigned char *descdata, *filenames, *descend, *contents;
610 unsigned int addr_size_bits, addr_size;
611 struct cleanup *cleanup;
612 struct gdbarch *core_gdbarch = gdbarch_from_bfd (core_bfd);
613 /* We assume this for reading 64-bit core files. */
614 gdb_static_assert (sizeof (ULONGEST) >= 8);
616 section = bfd_get_section_by_name (core_bfd, ".note.linuxcore.file");
619 warning (_("unable to find mappings in core file"));
623 addr_size_bits = gdbarch_addr_bit (core_gdbarch);
624 addr_size = addr_size_bits / 8;
625 note_size = bfd_get_section_size (section);
627 if (note_size < 2 * addr_size)
628 error (_("malformed core note - too short for header"));
630 contents = xmalloc (note_size);
631 cleanup = make_cleanup (xfree, contents);
632 if (!bfd_get_section_contents (core_bfd, section, contents, 0, note_size))
633 error (_("could not get core note contents"));
636 descend = descdata + note_size;
638 if (descdata[note_size - 1] != '\0')
639 error (_("malformed note - does not end with \\0"));
641 count = bfd_get (addr_size_bits, core_bfd, descdata);
642 descdata += addr_size;
644 page_size = bfd_get (addr_size_bits, core_bfd, descdata);
645 descdata += addr_size;
647 if (note_size < 2 * addr_size + count * 3 * addr_size)
648 error (_("malformed note - too short for supplied file count"));
650 printf_filtered (_("Mapped address spaces:\n\n"));
651 if (gdbarch_addr_bit (gdbarch) == 32)
653 printf_filtered ("\t%10s %10s %10s %10s %s\n",
656 " Size", " Offset", "objfile");
660 printf_filtered (" %18s %18s %10s %10s %s\n",
663 " Size", " Offset", "objfile");
666 filenames = descdata + count * 3 * addr_size;
669 ULONGEST start, end, file_ofs;
671 if (filenames == descend)
672 error (_("malformed note - filenames end too early"));
674 start = bfd_get (addr_size_bits, core_bfd, descdata);
675 descdata += addr_size;
676 end = bfd_get (addr_size_bits, core_bfd, descdata);
677 descdata += addr_size;
678 file_ofs = bfd_get (addr_size_bits, core_bfd, descdata);
679 descdata += addr_size;
681 file_ofs *= page_size;
683 if (gdbarch_addr_bit (gdbarch) == 32)
684 printf_filtered ("\t%10s %10s %10s %10s %s\n",
685 paddress (gdbarch, start),
686 paddress (gdbarch, end),
687 hex_string (end - start),
688 hex_string (file_ofs),
691 printf_filtered (" %18s %18s %10s %10s %s\n",
692 paddress (gdbarch, start),
693 paddress (gdbarch, end),
694 hex_string (end - start),
695 hex_string (file_ofs),
698 filenames += 1 + strlen ((char *) filenames);
701 do_cleanups (cleanup);
704 /* Implement "info proc" for a corefile. */
707 linux_core_info_proc (struct gdbarch *gdbarch, char *args,
708 enum info_proc_what what)
710 int exe_f = (what == IP_MINIMAL || what == IP_EXE || what == IP_ALL);
711 int mappings_f = (what == IP_MAPPINGS || what == IP_ALL);
717 exe = bfd_core_file_failing_command (core_bfd);
719 printf_filtered ("exe = '%s'\n", exe);
721 warning (_("unable to find command name in core file"));
725 linux_core_info_proc_mappings (gdbarch, args);
727 if (!exe_f && !mappings_f)
728 error (_("unable to handle request"));
731 typedef int linux_find_memory_region_ftype (ULONGEST vaddr, ULONGEST size,
732 ULONGEST offset, ULONGEST inode,
734 int exec, int modified,
735 const char *filename,
738 /* List memory regions in the inferior for a corefile. */
741 linux_find_memory_regions_full (struct gdbarch *gdbarch,
742 linux_find_memory_region_ftype *func,
745 char mapsfilename[100];
748 /* We need to know the real target PID to access /proc. */
749 if (current_inferior ()->fake_pid_p)
752 xsnprintf (mapsfilename, sizeof mapsfilename,
753 "/proc/%d/smaps", current_inferior ()->pid);
754 data = target_fileio_read_stralloc (mapsfilename);
757 /* Older Linux kernels did not support /proc/PID/smaps. */
758 xsnprintf (mapsfilename, sizeof mapsfilename,
759 "/proc/%d/maps", current_inferior ()->pid);
760 data = target_fileio_read_stralloc (mapsfilename);
764 struct cleanup *cleanup = make_cleanup (xfree, data);
767 line = strtok (data, "\n");
770 ULONGEST addr, endaddr, offset, inode;
771 const char *permissions, *device, *filename;
772 size_t permissions_len, device_len;
773 int read, write, exec;
774 int modified = 0, has_anonymous = 0;
776 read_mapping (line, &addr, &endaddr, &permissions, &permissions_len,
777 &offset, &device, &device_len, &inode, &filename);
779 /* Decode permissions. */
780 read = (memchr (permissions, 'r', permissions_len) != 0);
781 write = (memchr (permissions, 'w', permissions_len) != 0);
782 exec = (memchr (permissions, 'x', permissions_len) != 0);
784 /* Try to detect if region was modified by parsing smaps counters. */
785 for (line = strtok (NULL, "\n");
786 line && line[0] >= 'A' && line[0] <= 'Z';
787 line = strtok (NULL, "\n"))
789 char keyword[64 + 1];
791 if (sscanf (line, "%64s", keyword) != 1)
793 warning (_("Error parsing {s,}maps file '%s'"), mapsfilename);
796 if (strcmp (keyword, "Anonymous:") == 0)
798 if (strcmp (keyword, "Shared_Dirty:") == 0
799 || strcmp (keyword, "Private_Dirty:") == 0
800 || strcmp (keyword, "Swap:") == 0
801 || strcmp (keyword, "Anonymous:") == 0)
803 unsigned long number;
805 if (sscanf (line, "%*s%lu", &number) != 1)
807 warning (_("Error parsing {s,}maps file '%s' number"),
816 /* Older Linux kernels did not support the "Anonymous:" counter.
817 If it is missing, we can't be sure - dump all the pages. */
821 /* Invoke the callback function to create the corefile segment. */
822 func (addr, endaddr - addr, offset, inode,
823 read, write, exec, modified, filename, obfd);
826 do_cleanups (cleanup);
833 /* A structure for passing information through
834 linux_find_memory_regions_full. */
836 struct linux_find_memory_regions_data
838 /* The original callback. */
840 find_memory_region_ftype func;
842 /* The original datum. */
847 /* A callback for linux_find_memory_regions that converts between the
848 "full"-style callback and find_memory_region_ftype. */
851 linux_find_memory_regions_thunk (ULONGEST vaddr, ULONGEST size,
852 ULONGEST offset, ULONGEST inode,
853 int read, int write, int exec, int modified,
854 const char *filename, void *arg)
856 struct linux_find_memory_regions_data *data = arg;
858 return data->func (vaddr, size, read, write, exec, modified, data->obfd);
861 /* A variant of linux_find_memory_regions_full that is suitable as the
862 gdbarch find_memory_regions method. */
865 linux_find_memory_regions (struct gdbarch *gdbarch,
866 find_memory_region_ftype func, void *obfd)
868 struct linux_find_memory_regions_data data;
873 return linux_find_memory_regions_full (gdbarch,
874 linux_find_memory_regions_thunk,
878 /* Determine which signal stopped execution. */
881 find_signalled_thread (struct thread_info *info, void *data)
883 if (info->suspend.stop_signal != GDB_SIGNAL_0
884 && ptid_get_pid (info->ptid) == ptid_get_pid (inferior_ptid))
890 static enum gdb_signal
891 find_stop_signal (void)
893 struct thread_info *info =
894 iterate_over_threads (find_signalled_thread, NULL);
897 return info->suspend.stop_signal;
902 /* Generate corefile notes for SPU contexts. */
905 linux_spu_make_corefile_notes (bfd *obfd, char *note_data, int *note_size)
907 static const char *spu_files[] =
929 enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ());
933 /* Determine list of SPU ids. */
934 size = target_read_alloc (¤t_target, TARGET_OBJECT_SPU,
937 /* Generate corefile notes for each SPU file. */
938 for (i = 0; i < size; i += 4)
940 int fd = extract_unsigned_integer (spu_ids + i, 4, byte_order);
942 for (j = 0; j < sizeof (spu_files) / sizeof (spu_files[0]); j++)
944 char annex[32], note_name[32];
948 xsnprintf (annex, sizeof annex, "%d/%s", fd, spu_files[j]);
949 spu_len = target_read_alloc (¤t_target, TARGET_OBJECT_SPU,
953 xsnprintf (note_name, sizeof note_name, "SPU/%s", annex);
954 note_data = elfcore_write_note (obfd, note_data, note_size,
974 /* This is used to pass information from
975 linux_make_mappings_corefile_notes through
976 linux_find_memory_regions_full. */
978 struct linux_make_mappings_data
980 /* Number of files mapped. */
983 /* The obstack for the main part of the data. */
984 struct obstack *data_obstack;
986 /* The filename obstack. */
987 struct obstack *filename_obstack;
989 /* The architecture's "long" type. */
990 struct type *long_type;
993 static linux_find_memory_region_ftype linux_make_mappings_callback;
995 /* A callback for linux_find_memory_regions_full that updates the
996 mappings data for linux_make_mappings_corefile_notes. */
999 linux_make_mappings_callback (ULONGEST vaddr, ULONGEST size,
1000 ULONGEST offset, ULONGEST inode,
1001 int read, int write, int exec, int modified,
1002 const char *filename, void *data)
1004 struct linux_make_mappings_data *map_data = data;
1005 gdb_byte buf[sizeof (ULONGEST)];
1007 if (*filename == '\0' || inode == 0)
1010 ++map_data->file_count;
1012 pack_long (buf, map_data->long_type, vaddr);
1013 obstack_grow (map_data->data_obstack, buf, TYPE_LENGTH (map_data->long_type));
1014 pack_long (buf, map_data->long_type, vaddr + size);
1015 obstack_grow (map_data->data_obstack, buf, TYPE_LENGTH (map_data->long_type));
1016 pack_long (buf, map_data->long_type, offset);
1017 obstack_grow (map_data->data_obstack, buf, TYPE_LENGTH (map_data->long_type));
1019 obstack_grow_str0 (map_data->filename_obstack, filename);
1024 /* Write the file mapping data to the core file, if possible. OBFD is
1025 the output BFD. NOTE_DATA is the current note data, and NOTE_SIZE
1026 is a pointer to the note size. Returns the new NOTE_DATA and
1027 updates NOTE_SIZE. */
1030 linux_make_mappings_corefile_notes (struct gdbarch *gdbarch, bfd *obfd,
1031 char *note_data, int *note_size)
1033 struct cleanup *cleanup;
1034 struct obstack data_obstack, filename_obstack;
1035 struct linux_make_mappings_data mapping_data;
1036 struct type *long_type
1037 = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), 0, "long");
1038 gdb_byte buf[sizeof (ULONGEST)];
1040 obstack_init (&data_obstack);
1041 cleanup = make_cleanup_obstack_free (&data_obstack);
1042 obstack_init (&filename_obstack);
1043 make_cleanup_obstack_free (&filename_obstack);
1045 mapping_data.file_count = 0;
1046 mapping_data.data_obstack = &data_obstack;
1047 mapping_data.filename_obstack = &filename_obstack;
1048 mapping_data.long_type = long_type;
1050 /* Reserve space for the count. */
1051 obstack_blank (&data_obstack, TYPE_LENGTH (long_type));
1052 /* We always write the page size as 1 since we have no good way to
1053 determine the correct value. */
1054 pack_long (buf, long_type, 1);
1055 obstack_grow (&data_obstack, buf, TYPE_LENGTH (long_type));
1057 linux_find_memory_regions_full (gdbarch, linux_make_mappings_callback,
1060 if (mapping_data.file_count != 0)
1062 /* Write the count to the obstack. */
1063 pack_long ((gdb_byte *) obstack_base (&data_obstack),
1064 long_type, mapping_data.file_count);
1066 /* Copy the filenames to the data obstack. */
1067 obstack_grow (&data_obstack, obstack_base (&filename_obstack),
1068 obstack_object_size (&filename_obstack));
1070 note_data = elfcore_write_note (obfd, note_data, note_size,
1072 obstack_base (&data_obstack),
1073 obstack_object_size (&data_obstack));
1076 do_cleanups (cleanup);
1080 /* Records the thread's register state for the corefile note
1084 linux_collect_thread_registers (const struct regcache *regcache,
1085 ptid_t ptid, bfd *obfd,
1086 char *note_data, int *note_size,
1087 enum gdb_signal stop_signal)
1089 struct gdbarch *gdbarch = get_regcache_arch (regcache);
1090 struct core_regset_section *sect_list;
1093 sect_list = gdbarch_core_regset_sections (gdbarch);
1094 gdb_assert (sect_list);
1096 /* For remote targets the LWP may not be available, so use the TID. */
1097 lwp = ptid_get_lwp (ptid);
1099 lwp = ptid_get_tid (ptid);
1101 while (sect_list->sect_name != NULL)
1103 const struct regset *regset;
1106 regset = gdbarch_regset_from_core_section (gdbarch,
1107 sect_list->sect_name,
1109 gdb_assert (regset && regset->collect_regset);
1111 buf = xmalloc (sect_list->size);
1112 regset->collect_regset (regset, regcache, -1, buf, sect_list->size);
1114 /* PRSTATUS still needs to be treated specially. */
1115 if (strcmp (sect_list->sect_name, ".reg") == 0)
1116 note_data = (char *) elfcore_write_prstatus
1117 (obfd, note_data, note_size, lwp,
1118 gdb_signal_to_host (stop_signal), buf);
1120 note_data = (char *) elfcore_write_register_note
1121 (obfd, note_data, note_size,
1122 sect_list->sect_name, buf, sect_list->size);
1133 /* Fetch the siginfo data for the current thread, if it exists. If
1134 there is no data, or we could not read it, return NULL. Otherwise,
1135 return a newly malloc'd buffer holding the data and fill in *SIZE
1136 with the size of the data. The caller is responsible for freeing
1140 linux_get_siginfo_data (struct gdbarch *gdbarch, LONGEST *size)
1142 struct type *siginfo_type;
1145 struct cleanup *cleanups;
1147 if (!gdbarch_get_siginfo_type_p (gdbarch))
1150 siginfo_type = gdbarch_get_siginfo_type (gdbarch);
1152 buf = xmalloc (TYPE_LENGTH (siginfo_type));
1153 cleanups = make_cleanup (xfree, buf);
1155 bytes_read = target_read (¤t_target, TARGET_OBJECT_SIGNAL_INFO, NULL,
1156 buf, 0, TYPE_LENGTH (siginfo_type));
1157 if (bytes_read == TYPE_LENGTH (siginfo_type))
1159 discard_cleanups (cleanups);
1164 do_cleanups (cleanups);
1171 struct linux_corefile_thread_data
1173 struct gdbarch *gdbarch;
1178 enum gdb_signal stop_signal;
1179 linux_collect_thread_registers_ftype collect;
1182 /* Called by gdbthread.c once per thread. Records the thread's
1183 register state for the corefile note section. */
1186 linux_corefile_thread_callback (struct thread_info *info, void *data)
1188 struct linux_corefile_thread_data *args = data;
1190 if (ptid_get_pid (info->ptid) == args->pid)
1192 struct cleanup *old_chain;
1193 struct regcache *regcache;
1194 gdb_byte *siginfo_data;
1195 LONGEST siginfo_size = 0;
1197 regcache = get_thread_arch_regcache (info->ptid, args->gdbarch);
1199 old_chain = save_inferior_ptid ();
1200 inferior_ptid = info->ptid;
1201 target_fetch_registers (regcache, -1);
1202 siginfo_data = linux_get_siginfo_data (args->gdbarch, &siginfo_size);
1203 do_cleanups (old_chain);
1205 old_chain = make_cleanup (xfree, siginfo_data);
1207 args->note_data = args->collect (regcache, info->ptid, args->obfd,
1208 args->note_data, args->note_size,
1211 /* Don't return anything if we got no register information above,
1212 such a core file is useless. */
1213 if (args->note_data != NULL)
1214 if (siginfo_data != NULL)
1215 args->note_data = elfcore_write_note (args->obfd,
1219 siginfo_data, siginfo_size);
1221 do_cleanups (old_chain);
1224 return !args->note_data;
1227 /* Fill the PRPSINFO structure with information about the process being
1228 debugged. Returns 1 in case of success, 0 for failures. Please note that
1229 even if the structure cannot be entirely filled (e.g., GDB was unable to
1230 gather information about the process UID/GID), this function will still
1231 return 1 since some information was already recorded. It will only return
1232 0 iff nothing can be gathered. */
1235 linux_fill_prpsinfo (struct elf_internal_linux_prpsinfo *p)
1237 /* The filename which we will use to obtain some info about the process.
1238 We will basically use this to store the `/proc/PID/FILENAME' file. */
1240 /* The full name of the program which generated the corefile. */
1242 /* The basename of the executable. */
1243 const char *basename;
1244 /* The arguments of the program. */
1247 /* The contents of `/proc/PID/stat' and `/proc/PID/status' files. */
1248 char *proc_stat, *proc_status;
1249 /* Temporary buffer. */
1251 /* The valid states of a process, according to the Linux kernel. */
1252 const char valid_states[] = "RSDTZW";
1253 /* The program state. */
1254 const char *prog_state;
1255 /* The state of the process. */
1257 /* The PID of the program which generated the corefile. */
1259 /* Process flags. */
1260 unsigned int pr_flag;
1261 /* Process nice value. */
1263 /* The number of fields read by `sscanf'. */
1269 gdb_assert (p != NULL);
1271 /* Obtaining PID and filename. */
1272 pid = ptid_get_pid (inferior_ptid);
1273 xsnprintf (filename, sizeof (filename), "/proc/%d/cmdline", (int) pid);
1274 fname = target_fileio_read_stralloc (filename);
1276 if (fname == NULL || *fname == '\0')
1278 /* No program name was read, so we won't be able to retrieve more
1279 information about the process. */
1284 c = make_cleanup (xfree, fname);
1285 memset (p, 0, sizeof (*p));
1287 /* Defining the PID. */
1290 /* Copying the program name. Only the basename matters. */
1291 basename = lbasename (fname);
1292 strncpy (p->pr_fname, basename, sizeof (p->pr_fname));
1293 p->pr_fname[sizeof (p->pr_fname) - 1] = '\0';
1295 infargs = get_inferior_args ();
1297 psargs = xstrdup (fname);
1298 if (infargs != NULL)
1299 psargs = reconcat (psargs, psargs, " ", infargs, NULL);
1301 make_cleanup (xfree, psargs);
1303 strncpy (p->pr_psargs, psargs, sizeof (p->pr_psargs));
1304 p->pr_psargs[sizeof (p->pr_psargs) - 1] = '\0';
1306 xsnprintf (filename, sizeof (filename), "/proc/%d/stat", (int) pid);
1307 proc_stat = target_fileio_read_stralloc (filename);
1308 make_cleanup (xfree, proc_stat);
1310 if (proc_stat == NULL || *proc_stat == '\0')
1312 /* Despite being unable to read more information about the
1313 process, we return 1 here because at least we have its
1314 command line, PID and arguments. */
1319 /* Ok, we have the stats. It's time to do a little parsing of the
1320 contents of the buffer, so that we end up reading what we want.
1322 The following parsing mechanism is strongly based on the
1323 information generated by the `fs/proc/array.c' file, present in
1324 the Linux kernel tree. More details about how the information is
1325 displayed can be obtained by seeing the manpage of proc(5),
1326 specifically under the entry of `/proc/[pid]/stat'. */
1328 /* Getting rid of the PID, since we already have it. */
1329 while (isdigit (*proc_stat))
1332 proc_stat = skip_spaces (proc_stat);
1334 /* Getting rid of the executable name, since we already have it. We
1335 know that this name will be in parentheses, so we can safely look
1336 for the close-paren. */
1337 while (*proc_stat != ')')
1341 proc_stat = skip_spaces (proc_stat);
1343 n_fields = sscanf (proc_stat,
1344 "%c" /* Process state. */
1345 "%d%d%d" /* Parent PID, group ID, session ID. */
1346 "%*d%*d" /* tty_nr, tpgid (not used). */
1348 "%*s%*s%*s%*s" /* minflt, cminflt, majflt,
1349 cmajflt (not used). */
1350 "%*s%*s%*s%*s" /* utime, stime, cutime,
1351 cstime (not used). */
1352 "%*s" /* Priority (not used). */
1355 &p->pr_ppid, &p->pr_pgrp, &p->pr_sid,
1361 /* Again, we couldn't read the complementary information about
1362 the process state. However, we already have minimal
1363 information, so we just return 1 here. */
1368 /* Filling the structure fields. */
1369 prog_state = strchr (valid_states, pr_sname);
1370 if (prog_state != NULL)
1371 p->pr_state = prog_state - valid_states;
1374 /* Zero means "Running". */
1378 p->pr_sname = p->pr_state > 5 ? '.' : pr_sname;
1379 p->pr_zomb = p->pr_sname == 'Z';
1380 p->pr_nice = pr_nice;
1381 p->pr_flag = pr_flag;
1383 /* Finally, obtaining the UID and GID. For that, we read and parse the
1384 contents of the `/proc/PID/status' file. */
1385 xsnprintf (filename, sizeof (filename), "/proc/%d/status", (int) pid);
1386 proc_status = target_fileio_read_stralloc (filename);
1387 make_cleanup (xfree, proc_status);
1389 if (proc_status == NULL || *proc_status == '\0')
1391 /* Returning 1 since we already have a bunch of information. */
1396 /* Extracting the UID. */
1397 tmpstr = strstr (proc_status, "Uid:");
1400 /* Advancing the pointer to the beginning of the UID. */
1401 tmpstr += sizeof ("Uid:");
1402 while (*tmpstr != '\0' && !isdigit (*tmpstr))
1405 if (isdigit (*tmpstr))
1406 p->pr_uid = strtol (tmpstr, &tmpstr, 10);
1409 /* Extracting the GID. */
1410 tmpstr = strstr (proc_status, "Gid:");
1413 /* Advancing the pointer to the beginning of the GID. */
1414 tmpstr += sizeof ("Gid:");
1415 while (*tmpstr != '\0' && !isdigit (*tmpstr))
1418 if (isdigit (*tmpstr))
1419 p->pr_gid = strtol (tmpstr, &tmpstr, 10);
1427 /* Fills the "to_make_corefile_note" target vector. Builds the note
1428 section for a corefile, and returns it in a malloc buffer. */
1431 linux_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size,
1432 linux_collect_thread_registers_ftype collect)
1434 struct linux_corefile_thread_data thread_args;
1435 struct elf_internal_linux_prpsinfo prpsinfo;
1436 char *note_data = NULL;
1440 if (linux_fill_prpsinfo (&prpsinfo))
1442 if (gdbarch_elfcore_write_linux_prpsinfo_p (gdbarch))
1444 note_data = gdbarch_elfcore_write_linux_prpsinfo (gdbarch, obfd,
1445 note_data, note_size,
1450 if (gdbarch_ptr_bit (gdbarch) == 64)
1451 note_data = elfcore_write_linux_prpsinfo64 (obfd,
1452 note_data, note_size,
1455 note_data = elfcore_write_linux_prpsinfo32 (obfd,
1456 note_data, note_size,
1461 /* Thread register information. */
1462 thread_args.gdbarch = gdbarch;
1463 thread_args.pid = ptid_get_pid (inferior_ptid);
1464 thread_args.obfd = obfd;
1465 thread_args.note_data = note_data;
1466 thread_args.note_size = note_size;
1467 thread_args.stop_signal = find_stop_signal ();
1468 thread_args.collect = collect;
1469 iterate_over_threads (linux_corefile_thread_callback, &thread_args);
1470 note_data = thread_args.note_data;
1474 /* Auxillary vector. */
1475 auxv_len = target_read_alloc (¤t_target, TARGET_OBJECT_AUXV,
1479 note_data = elfcore_write_note (obfd, note_data, note_size,
1480 "CORE", NT_AUXV, auxv, auxv_len);
1487 /* SPU information. */
1488 note_data = linux_spu_make_corefile_notes (obfd, note_data, note_size);
1492 /* File mappings. */
1493 note_data = linux_make_mappings_corefile_notes (gdbarch, obfd,
1494 note_data, note_size);
1496 make_cleanup (xfree, note_data);
1501 linux_make_corefile_notes_1 (struct gdbarch *gdbarch, bfd *obfd, int *note_size)
1503 /* FIXME: uweigand/2011-10-06: Once all GNU/Linux architectures have been
1504 converted to gdbarch_core_regset_sections, we no longer need to fall back
1505 to the target method at this point. */
1507 if (!gdbarch_core_regset_sections (gdbarch))
1508 return target_make_corefile_notes (obfd, note_size);
1510 return linux_make_corefile_notes (gdbarch, obfd, note_size,
1511 linux_collect_thread_registers);
1514 /* Implementation of `gdbarch_gdb_signal_from_target', as defined in
1515 gdbarch.h. This function is not static because it is exported to
1516 other -tdep files. */
1519 linux_gdb_signal_from_target (struct gdbarch *gdbarch, int signal)
1524 return GDB_SIGNAL_0;
1527 return GDB_SIGNAL_HUP;
1530 return GDB_SIGNAL_INT;
1533 return GDB_SIGNAL_QUIT;
1536 return GDB_SIGNAL_ILL;
1539 return GDB_SIGNAL_TRAP;
1542 return GDB_SIGNAL_ABRT;
1545 return GDB_SIGNAL_BUS;
1548 return GDB_SIGNAL_FPE;
1551 return GDB_SIGNAL_KILL;
1554 return GDB_SIGNAL_USR1;
1557 return GDB_SIGNAL_SEGV;
1560 return GDB_SIGNAL_USR2;
1563 return GDB_SIGNAL_PIPE;
1566 return GDB_SIGNAL_ALRM;
1569 return GDB_SIGNAL_TERM;
1572 return GDB_SIGNAL_CHLD;
1575 return GDB_SIGNAL_CONT;
1578 return GDB_SIGNAL_STOP;
1581 return GDB_SIGNAL_TSTP;
1584 return GDB_SIGNAL_TTIN;
1587 return GDB_SIGNAL_TTOU;
1590 return GDB_SIGNAL_URG;
1593 return GDB_SIGNAL_XCPU;
1596 return GDB_SIGNAL_XFSZ;
1598 case LINUX_SIGVTALRM:
1599 return GDB_SIGNAL_VTALRM;
1602 return GDB_SIGNAL_PROF;
1604 case LINUX_SIGWINCH:
1605 return GDB_SIGNAL_WINCH;
1607 /* No way to differentiate between SIGIO and SIGPOLL.
1608 Therefore, we just handle the first one. */
1610 return GDB_SIGNAL_IO;
1613 return GDB_SIGNAL_PWR;
1616 return GDB_SIGNAL_SYS;
1618 /* SIGRTMIN and SIGRTMAX are not continuous in <gdb/signals.def>,
1619 therefore we have to handle them here. */
1620 case LINUX_SIGRTMIN:
1621 return GDB_SIGNAL_REALTIME_32;
1623 case LINUX_SIGRTMAX:
1624 return GDB_SIGNAL_REALTIME_64;
1627 if (signal >= LINUX_SIGRTMIN + 1 && signal <= LINUX_SIGRTMAX - 1)
1629 int offset = signal - LINUX_SIGRTMIN + 1;
1631 return (enum gdb_signal) ((int) GDB_SIGNAL_REALTIME_33 + offset);
1634 return GDB_SIGNAL_UNKNOWN;
1637 /* Implementation of `gdbarch_gdb_signal_to_target', as defined in
1638 gdbarch.h. This function is not static because it is exported to
1639 other -tdep files. */
1642 linux_gdb_signal_to_target (struct gdbarch *gdbarch,
1643 enum gdb_signal signal)
1650 case GDB_SIGNAL_HUP:
1651 return LINUX_SIGHUP;
1653 case GDB_SIGNAL_INT:
1654 return LINUX_SIGINT;
1656 case GDB_SIGNAL_QUIT:
1657 return LINUX_SIGQUIT;
1659 case GDB_SIGNAL_ILL:
1660 return LINUX_SIGILL;
1662 case GDB_SIGNAL_TRAP:
1663 return LINUX_SIGTRAP;
1665 case GDB_SIGNAL_ABRT:
1666 return LINUX_SIGABRT;
1668 case GDB_SIGNAL_FPE:
1669 return LINUX_SIGFPE;
1671 case GDB_SIGNAL_KILL:
1672 return LINUX_SIGKILL;
1674 case GDB_SIGNAL_BUS:
1675 return LINUX_SIGBUS;
1677 case GDB_SIGNAL_SEGV:
1678 return LINUX_SIGSEGV;
1680 case GDB_SIGNAL_SYS:
1681 return LINUX_SIGSYS;
1683 case GDB_SIGNAL_PIPE:
1684 return LINUX_SIGPIPE;
1686 case GDB_SIGNAL_ALRM:
1687 return LINUX_SIGALRM;
1689 case GDB_SIGNAL_TERM:
1690 return LINUX_SIGTERM;
1692 case GDB_SIGNAL_URG:
1693 return LINUX_SIGURG;
1695 case GDB_SIGNAL_STOP:
1696 return LINUX_SIGSTOP;
1698 case GDB_SIGNAL_TSTP:
1699 return LINUX_SIGTSTP;
1701 case GDB_SIGNAL_CONT:
1702 return LINUX_SIGCONT;
1704 case GDB_SIGNAL_CHLD:
1705 return LINUX_SIGCHLD;
1707 case GDB_SIGNAL_TTIN:
1708 return LINUX_SIGTTIN;
1710 case GDB_SIGNAL_TTOU:
1711 return LINUX_SIGTTOU;
1716 case GDB_SIGNAL_XCPU:
1717 return LINUX_SIGXCPU;
1719 case GDB_SIGNAL_XFSZ:
1720 return LINUX_SIGXFSZ;
1722 case GDB_SIGNAL_VTALRM:
1723 return LINUX_SIGVTALRM;
1725 case GDB_SIGNAL_PROF:
1726 return LINUX_SIGPROF;
1728 case GDB_SIGNAL_WINCH:
1729 return LINUX_SIGWINCH;
1731 case GDB_SIGNAL_USR1:
1732 return LINUX_SIGUSR1;
1734 case GDB_SIGNAL_USR2:
1735 return LINUX_SIGUSR2;
1737 case GDB_SIGNAL_PWR:
1738 return LINUX_SIGPWR;
1740 case GDB_SIGNAL_POLL:
1741 return LINUX_SIGPOLL;
1743 /* GDB_SIGNAL_REALTIME_32 is not continuous in <gdb/signals.def>,
1744 therefore we have to handle it here. */
1745 case GDB_SIGNAL_REALTIME_32:
1746 return LINUX_SIGRTMIN;
1748 /* Same comment applies to _64. */
1749 case GDB_SIGNAL_REALTIME_64:
1750 return LINUX_SIGRTMAX;
1753 /* GDB_SIGNAL_REALTIME_33 to _64 are continuous. */
1754 if (signal >= GDB_SIGNAL_REALTIME_33
1755 && signal <= GDB_SIGNAL_REALTIME_63)
1757 int offset = signal - GDB_SIGNAL_REALTIME_33;
1759 return LINUX_SIGRTMIN + 1 + offset;
1765 /* To be called from the various GDB_OSABI_LINUX handlers for the
1766 various GNU/Linux architectures and machine types. */
1769 linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
1771 set_gdbarch_core_pid_to_str (gdbarch, linux_core_pid_to_str);
1772 set_gdbarch_info_proc (gdbarch, linux_info_proc);
1773 set_gdbarch_core_info_proc (gdbarch, linux_core_info_proc);
1774 set_gdbarch_find_memory_regions (gdbarch, linux_find_memory_regions);
1775 set_gdbarch_make_corefile_notes (gdbarch, linux_make_corefile_notes_1);
1776 set_gdbarch_has_shared_address_space (gdbarch,
1777 linux_has_shared_address_space);
1778 set_gdbarch_gdb_signal_from_target (gdbarch,
1779 linux_gdb_signal_from_target);
1780 set_gdbarch_gdb_signal_to_target (gdbarch,
1781 linux_gdb_signal_to_target);
1784 /* Provide a prototype to silence -Wmissing-prototypes. */
1785 extern initialize_file_ftype _initialize_linux_tdep;
1788 _initialize_linux_tdep (void)
1790 linux_gdbarch_data_handle =
1791 gdbarch_data_register_post_init (init_linux_gdbarch_data);