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, const 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]))
338 pid = strtoul (args, &tem, 10);
343 if (!target_has_execution)
344 error (_("No current process: you must name one."));
345 if (current_inferior ()->fake_pid_p)
346 error (_("Can't determine the current process's PID: you must name one."));
348 pid = current_inferior ()->pid;
351 args = skip_spaces_const (args);
353 error (_("Too many parameters: %s"), args);
355 printf_filtered (_("process %ld\n"), pid);
358 xsnprintf (filename, sizeof filename, "/proc/%ld/cmdline", pid);
359 data = target_fileio_read_stralloc (filename);
362 struct cleanup *cleanup = make_cleanup (xfree, data);
363 printf_filtered ("cmdline = '%s'\n", data);
364 do_cleanups (cleanup);
367 warning (_("unable to open /proc file '%s'"), filename);
371 xsnprintf (filename, sizeof filename, "/proc/%ld/cwd", pid);
372 data = target_fileio_readlink (filename, &target_errno);
375 struct cleanup *cleanup = make_cleanup (xfree, data);
376 printf_filtered ("cwd = '%s'\n", data);
377 do_cleanups (cleanup);
380 warning (_("unable to read link '%s'"), filename);
384 xsnprintf (filename, sizeof filename, "/proc/%ld/exe", pid);
385 data = target_fileio_readlink (filename, &target_errno);
388 struct cleanup *cleanup = make_cleanup (xfree, data);
389 printf_filtered ("exe = '%s'\n", data);
390 do_cleanups (cleanup);
393 warning (_("unable to read link '%s'"), filename);
397 xsnprintf (filename, sizeof filename, "/proc/%ld/maps", pid);
398 data = target_fileio_read_stralloc (filename);
401 struct cleanup *cleanup = make_cleanup (xfree, data);
404 printf_filtered (_("Mapped address spaces:\n\n"));
405 if (gdbarch_addr_bit (gdbarch) == 32)
407 printf_filtered ("\t%10s %10s %10s %10s %s\n",
410 " Size", " Offset", "objfile");
414 printf_filtered (" %18s %18s %10s %10s %s\n",
417 " Size", " Offset", "objfile");
420 for (line = strtok (data, "\n"); line; line = strtok (NULL, "\n"))
422 ULONGEST addr, endaddr, offset, inode;
423 const char *permissions, *device, *filename;
424 size_t permissions_len, device_len;
426 read_mapping (line, &addr, &endaddr,
427 &permissions, &permissions_len,
428 &offset, &device, &device_len,
431 if (gdbarch_addr_bit (gdbarch) == 32)
433 printf_filtered ("\t%10s %10s %10s %10s %s\n",
434 paddress (gdbarch, addr),
435 paddress (gdbarch, endaddr),
436 hex_string (endaddr - addr),
438 *filename? filename : "");
442 printf_filtered (" %18s %18s %10s %10s %s\n",
443 paddress (gdbarch, addr),
444 paddress (gdbarch, endaddr),
445 hex_string (endaddr - addr),
447 *filename? filename : "");
451 do_cleanups (cleanup);
454 warning (_("unable to open /proc file '%s'"), filename);
458 xsnprintf (filename, sizeof filename, "/proc/%ld/status", pid);
459 data = target_fileio_read_stralloc (filename);
462 struct cleanup *cleanup = make_cleanup (xfree, data);
463 puts_filtered (data);
464 do_cleanups (cleanup);
467 warning (_("unable to open /proc file '%s'"), filename);
471 xsnprintf (filename, sizeof filename, "/proc/%ld/stat", pid);
472 data = target_fileio_read_stralloc (filename);
475 struct cleanup *cleanup = make_cleanup (xfree, data);
476 const char *p = data;
478 printf_filtered (_("Process: %s\n"),
479 pulongest (strtoulst (p, &p, 10)));
481 p = skip_spaces_const (p);
484 /* ps command also relies on no trailing fields
486 const char *ep = strrchr (p, ')');
489 printf_filtered ("Exec file: %.*s\n",
490 (int) (ep - p - 1), p + 1);
495 p = skip_spaces_const (p);
497 printf_filtered (_("State: %c\n"), *p++);
500 printf_filtered (_("Parent process: %s\n"),
501 pulongest (strtoulst (p, &p, 10)));
503 printf_filtered (_("Process group: %s\n"),
504 pulongest (strtoulst (p, &p, 10)));
506 printf_filtered (_("Session id: %s\n"),
507 pulongest (strtoulst (p, &p, 10)));
509 printf_filtered (_("TTY: %s\n"),
510 pulongest (strtoulst (p, &p, 10)));
512 printf_filtered (_("TTY owner process group: %s\n"),
513 pulongest (strtoulst (p, &p, 10)));
516 printf_filtered (_("Flags: %s\n"),
517 hex_string (strtoulst (p, &p, 10)));
519 printf_filtered (_("Minor faults (no memory page): %s\n"),
520 pulongest (strtoulst (p, &p, 10)));
522 printf_filtered (_("Minor faults, children: %s\n"),
523 pulongest (strtoulst (p, &p, 10)));
525 printf_filtered (_("Major faults (memory page faults): %s\n"),
526 pulongest (strtoulst (p, &p, 10)));
528 printf_filtered (_("Major faults, children: %s\n"),
529 pulongest (strtoulst (p, &p, 10)));
531 printf_filtered (_("utime: %s\n"),
532 pulongest (strtoulst (p, &p, 10)));
534 printf_filtered (_("stime: %s\n"),
535 pulongest (strtoulst (p, &p, 10)));
537 printf_filtered (_("utime, children: %s\n"),
538 pulongest (strtoulst (p, &p, 10)));
540 printf_filtered (_("stime, children: %s\n"),
541 pulongest (strtoulst (p, &p, 10)));
543 printf_filtered (_("jiffies remaining in current "
545 pulongest (strtoulst (p, &p, 10)));
547 printf_filtered (_("'nice' value: %s\n"),
548 pulongest (strtoulst (p, &p, 10)));
550 printf_filtered (_("jiffies until next timeout: %s\n"),
551 pulongest (strtoulst (p, &p, 10)));
553 printf_filtered (_("jiffies until next SIGALRM: %s\n"),
554 pulongest (strtoulst (p, &p, 10)));
556 printf_filtered (_("start time (jiffies since "
557 "system boot): %s\n"),
558 pulongest (strtoulst (p, &p, 10)));
560 printf_filtered (_("Virtual memory size: %s\n"),
561 pulongest (strtoulst (p, &p, 10)));
563 printf_filtered (_("Resident set size: %s\n"),
564 pulongest (strtoulst (p, &p, 10)));
566 printf_filtered (_("rlim: %s\n"),
567 pulongest (strtoulst (p, &p, 10)));
569 printf_filtered (_("Start of text: %s\n"),
570 hex_string (strtoulst (p, &p, 10)));
572 printf_filtered (_("End of text: %s\n"),
573 hex_string (strtoulst (p, &p, 10)));
575 printf_filtered (_("Start of stack: %s\n"),
576 hex_string (strtoulst (p, &p, 10)));
577 #if 0 /* Don't know how architecture-dependent the rest is...
578 Anyway the signal bitmap info is available from "status". */
580 printf_filtered (_("Kernel stack pointer: %s\n"),
581 hex_string (strtoulst (p, &p, 10)));
583 printf_filtered (_("Kernel instr pointer: %s\n"),
584 hex_string (strtoulst (p, &p, 10)));
586 printf_filtered (_("Pending signals bitmap: %s\n"),
587 hex_string (strtoulst (p, &p, 10)));
589 printf_filtered (_("Blocked signals bitmap: %s\n"),
590 hex_string (strtoulst (p, &p, 10)));
592 printf_filtered (_("Ignored signals bitmap: %s\n"),
593 hex_string (strtoulst (p, &p, 10)));
595 printf_filtered (_("Catched signals bitmap: %s\n"),
596 hex_string (strtoulst (p, &p, 10)));
598 printf_filtered (_("wchan (system call): %s\n"),
599 hex_string (strtoulst (p, &p, 10)));
601 do_cleanups (cleanup);
604 warning (_("unable to open /proc file '%s'"), filename);
608 /* Implement "info proc mappings" for a corefile. */
611 linux_core_info_proc_mappings (struct gdbarch *gdbarch, const char *args)
614 ULONGEST count, page_size;
615 unsigned char *descdata, *filenames, *descend, *contents;
617 unsigned int addr_size_bits, addr_size;
618 struct cleanup *cleanup;
619 struct gdbarch *core_gdbarch = gdbarch_from_bfd (core_bfd);
620 /* We assume this for reading 64-bit core files. */
621 gdb_static_assert (sizeof (ULONGEST) >= 8);
623 section = bfd_get_section_by_name (core_bfd, ".note.linuxcore.file");
626 warning (_("unable to find mappings in core file"));
630 addr_size_bits = gdbarch_addr_bit (core_gdbarch);
631 addr_size = addr_size_bits / 8;
632 note_size = bfd_get_section_size (section);
634 if (note_size < 2 * addr_size)
635 error (_("malformed core note - too short for header"));
637 contents = xmalloc (note_size);
638 cleanup = make_cleanup (xfree, contents);
639 if (!bfd_get_section_contents (core_bfd, section, contents, 0, note_size))
640 error (_("could not get core note contents"));
643 descend = descdata + note_size;
645 if (descdata[note_size - 1] != '\0')
646 error (_("malformed note - does not end with \\0"));
648 count = bfd_get (addr_size_bits, core_bfd, descdata);
649 descdata += addr_size;
651 page_size = bfd_get (addr_size_bits, core_bfd, descdata);
652 descdata += addr_size;
654 if (note_size < 2 * addr_size + count * 3 * addr_size)
655 error (_("malformed note - too short for supplied file count"));
657 printf_filtered (_("Mapped address spaces:\n\n"));
658 if (gdbarch_addr_bit (gdbarch) == 32)
660 printf_filtered ("\t%10s %10s %10s %10s %s\n",
663 " Size", " Offset", "objfile");
667 printf_filtered (" %18s %18s %10s %10s %s\n",
670 " Size", " Offset", "objfile");
673 filenames = descdata + count * 3 * addr_size;
676 ULONGEST start, end, file_ofs;
678 if (filenames == descend)
679 error (_("malformed note - filenames end too early"));
681 start = bfd_get (addr_size_bits, core_bfd, descdata);
682 descdata += addr_size;
683 end = bfd_get (addr_size_bits, core_bfd, descdata);
684 descdata += addr_size;
685 file_ofs = bfd_get (addr_size_bits, core_bfd, descdata);
686 descdata += addr_size;
688 file_ofs *= page_size;
690 if (gdbarch_addr_bit (gdbarch) == 32)
691 printf_filtered ("\t%10s %10s %10s %10s %s\n",
692 paddress (gdbarch, start),
693 paddress (gdbarch, end),
694 hex_string (end - start),
695 hex_string (file_ofs),
698 printf_filtered (" %18s %18s %10s %10s %s\n",
699 paddress (gdbarch, start),
700 paddress (gdbarch, end),
701 hex_string (end - start),
702 hex_string (file_ofs),
705 filenames += 1 + strlen ((char *) filenames);
708 do_cleanups (cleanup);
711 /* Implement "info proc" for a corefile. */
714 linux_core_info_proc (struct gdbarch *gdbarch, const char *args,
715 enum info_proc_what what)
717 int exe_f = (what == IP_MINIMAL || what == IP_EXE || what == IP_ALL);
718 int mappings_f = (what == IP_MAPPINGS || what == IP_ALL);
724 exe = bfd_core_file_failing_command (core_bfd);
726 printf_filtered ("exe = '%s'\n", exe);
728 warning (_("unable to find command name in core file"));
732 linux_core_info_proc_mappings (gdbarch, args);
734 if (!exe_f && !mappings_f)
735 error (_("unable to handle request"));
738 typedef int linux_find_memory_region_ftype (ULONGEST vaddr, ULONGEST size,
739 ULONGEST offset, ULONGEST inode,
741 int exec, int modified,
742 const char *filename,
745 /* List memory regions in the inferior for a corefile. */
748 linux_find_memory_regions_full (struct gdbarch *gdbarch,
749 linux_find_memory_region_ftype *func,
752 char mapsfilename[100];
755 /* We need to know the real target PID to access /proc. */
756 if (current_inferior ()->fake_pid_p)
759 xsnprintf (mapsfilename, sizeof mapsfilename,
760 "/proc/%d/smaps", current_inferior ()->pid);
761 data = target_fileio_read_stralloc (mapsfilename);
764 /* Older Linux kernels did not support /proc/PID/smaps. */
765 xsnprintf (mapsfilename, sizeof mapsfilename,
766 "/proc/%d/maps", current_inferior ()->pid);
767 data = target_fileio_read_stralloc (mapsfilename);
771 struct cleanup *cleanup = make_cleanup (xfree, data);
774 line = strtok (data, "\n");
777 ULONGEST addr, endaddr, offset, inode;
778 const char *permissions, *device, *filename;
779 size_t permissions_len, device_len;
780 int read, write, exec;
781 int modified = 0, has_anonymous = 0;
783 read_mapping (line, &addr, &endaddr, &permissions, &permissions_len,
784 &offset, &device, &device_len, &inode, &filename);
786 /* Decode permissions. */
787 read = (memchr (permissions, 'r', permissions_len) != 0);
788 write = (memchr (permissions, 'w', permissions_len) != 0);
789 exec = (memchr (permissions, 'x', permissions_len) != 0);
791 /* Try to detect if region was modified by parsing smaps counters. */
792 for (line = strtok (NULL, "\n");
793 line && line[0] >= 'A' && line[0] <= 'Z';
794 line = strtok (NULL, "\n"))
796 char keyword[64 + 1];
798 if (sscanf (line, "%64s", keyword) != 1)
800 warning (_("Error parsing {s,}maps file '%s'"), mapsfilename);
803 if (strcmp (keyword, "Anonymous:") == 0)
805 if (strcmp (keyword, "Shared_Dirty:") == 0
806 || strcmp (keyword, "Private_Dirty:") == 0
807 || strcmp (keyword, "Swap:") == 0
808 || strcmp (keyword, "Anonymous:") == 0)
810 unsigned long number;
812 if (sscanf (line, "%*s%lu", &number) != 1)
814 warning (_("Error parsing {s,}maps file '%s' number"),
823 /* Older Linux kernels did not support the "Anonymous:" counter.
824 If it is missing, we can't be sure - dump all the pages. */
828 /* Invoke the callback function to create the corefile segment. */
829 func (addr, endaddr - addr, offset, inode,
830 read, write, exec, modified, filename, obfd);
833 do_cleanups (cleanup);
840 /* A structure for passing information through
841 linux_find_memory_regions_full. */
843 struct linux_find_memory_regions_data
845 /* The original callback. */
847 find_memory_region_ftype func;
849 /* The original datum. */
854 /* A callback for linux_find_memory_regions that converts between the
855 "full"-style callback and find_memory_region_ftype. */
858 linux_find_memory_regions_thunk (ULONGEST vaddr, ULONGEST size,
859 ULONGEST offset, ULONGEST inode,
860 int read, int write, int exec, int modified,
861 const char *filename, void *arg)
863 struct linux_find_memory_regions_data *data = arg;
865 return data->func (vaddr, size, read, write, exec, modified, data->obfd);
868 /* A variant of linux_find_memory_regions_full that is suitable as the
869 gdbarch find_memory_regions method. */
872 linux_find_memory_regions (struct gdbarch *gdbarch,
873 find_memory_region_ftype func, void *obfd)
875 struct linux_find_memory_regions_data data;
880 return linux_find_memory_regions_full (gdbarch,
881 linux_find_memory_regions_thunk,
885 /* Determine which signal stopped execution. */
888 find_signalled_thread (struct thread_info *info, void *data)
890 if (info->suspend.stop_signal != GDB_SIGNAL_0
891 && ptid_get_pid (info->ptid) == ptid_get_pid (inferior_ptid))
897 static enum gdb_signal
898 find_stop_signal (void)
900 struct thread_info *info =
901 iterate_over_threads (find_signalled_thread, NULL);
904 return info->suspend.stop_signal;
909 /* Generate corefile notes for SPU contexts. */
912 linux_spu_make_corefile_notes (bfd *obfd, char *note_data, int *note_size)
914 static const char *spu_files[] =
936 enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ());
940 /* Determine list of SPU ids. */
941 size = target_read_alloc (¤t_target, TARGET_OBJECT_SPU,
944 /* Generate corefile notes for each SPU file. */
945 for (i = 0; i < size; i += 4)
947 int fd = extract_unsigned_integer (spu_ids + i, 4, byte_order);
949 for (j = 0; j < sizeof (spu_files) / sizeof (spu_files[0]); j++)
951 char annex[32], note_name[32];
955 xsnprintf (annex, sizeof annex, "%d/%s", fd, spu_files[j]);
956 spu_len = target_read_alloc (¤t_target, TARGET_OBJECT_SPU,
960 xsnprintf (note_name, sizeof note_name, "SPU/%s", annex);
961 note_data = elfcore_write_note (obfd, note_data, note_size,
981 /* This is used to pass information from
982 linux_make_mappings_corefile_notes through
983 linux_find_memory_regions_full. */
985 struct linux_make_mappings_data
987 /* Number of files mapped. */
990 /* The obstack for the main part of the data. */
991 struct obstack *data_obstack;
993 /* The filename obstack. */
994 struct obstack *filename_obstack;
996 /* The architecture's "long" type. */
997 struct type *long_type;
1000 static linux_find_memory_region_ftype linux_make_mappings_callback;
1002 /* A callback for linux_find_memory_regions_full that updates the
1003 mappings data for linux_make_mappings_corefile_notes. */
1006 linux_make_mappings_callback (ULONGEST vaddr, ULONGEST size,
1007 ULONGEST offset, ULONGEST inode,
1008 int read, int write, int exec, int modified,
1009 const char *filename, void *data)
1011 struct linux_make_mappings_data *map_data = data;
1012 gdb_byte buf[sizeof (ULONGEST)];
1014 if (*filename == '\0' || inode == 0)
1017 ++map_data->file_count;
1019 pack_long (buf, map_data->long_type, vaddr);
1020 obstack_grow (map_data->data_obstack, buf, TYPE_LENGTH (map_data->long_type));
1021 pack_long (buf, map_data->long_type, vaddr + size);
1022 obstack_grow (map_data->data_obstack, buf, TYPE_LENGTH (map_data->long_type));
1023 pack_long (buf, map_data->long_type, offset);
1024 obstack_grow (map_data->data_obstack, buf, TYPE_LENGTH (map_data->long_type));
1026 obstack_grow_str0 (map_data->filename_obstack, filename);
1031 /* Write the file mapping data to the core file, if possible. OBFD is
1032 the output BFD. NOTE_DATA is the current note data, and NOTE_SIZE
1033 is a pointer to the note size. Returns the new NOTE_DATA and
1034 updates NOTE_SIZE. */
1037 linux_make_mappings_corefile_notes (struct gdbarch *gdbarch, bfd *obfd,
1038 char *note_data, int *note_size)
1040 struct cleanup *cleanup;
1041 struct obstack data_obstack, filename_obstack;
1042 struct linux_make_mappings_data mapping_data;
1043 struct type *long_type
1044 = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), 0, "long");
1045 gdb_byte buf[sizeof (ULONGEST)];
1047 obstack_init (&data_obstack);
1048 cleanup = make_cleanup_obstack_free (&data_obstack);
1049 obstack_init (&filename_obstack);
1050 make_cleanup_obstack_free (&filename_obstack);
1052 mapping_data.file_count = 0;
1053 mapping_data.data_obstack = &data_obstack;
1054 mapping_data.filename_obstack = &filename_obstack;
1055 mapping_data.long_type = long_type;
1057 /* Reserve space for the count. */
1058 obstack_blank (&data_obstack, TYPE_LENGTH (long_type));
1059 /* We always write the page size as 1 since we have no good way to
1060 determine the correct value. */
1061 pack_long (buf, long_type, 1);
1062 obstack_grow (&data_obstack, buf, TYPE_LENGTH (long_type));
1064 linux_find_memory_regions_full (gdbarch, linux_make_mappings_callback,
1067 if (mapping_data.file_count != 0)
1069 /* Write the count to the obstack. */
1070 pack_long ((gdb_byte *) obstack_base (&data_obstack),
1071 long_type, mapping_data.file_count);
1073 /* Copy the filenames to the data obstack. */
1074 obstack_grow (&data_obstack, obstack_base (&filename_obstack),
1075 obstack_object_size (&filename_obstack));
1077 note_data = elfcore_write_note (obfd, note_data, note_size,
1079 obstack_base (&data_obstack),
1080 obstack_object_size (&data_obstack));
1083 do_cleanups (cleanup);
1087 /* Records the thread's register state for the corefile note
1091 linux_collect_thread_registers (const struct regcache *regcache,
1092 ptid_t ptid, bfd *obfd,
1093 char *note_data, int *note_size,
1094 enum gdb_signal stop_signal)
1096 struct gdbarch *gdbarch = get_regcache_arch (regcache);
1097 struct core_regset_section *sect_list;
1100 sect_list = gdbarch_core_regset_sections (gdbarch);
1101 gdb_assert (sect_list);
1103 /* For remote targets the LWP may not be available, so use the TID. */
1104 lwp = ptid_get_lwp (ptid);
1106 lwp = ptid_get_tid (ptid);
1108 while (sect_list->sect_name != NULL)
1110 const struct regset *regset;
1113 regset = gdbarch_regset_from_core_section (gdbarch,
1114 sect_list->sect_name,
1116 gdb_assert (regset && regset->collect_regset);
1118 buf = xmalloc (sect_list->size);
1119 regset->collect_regset (regset, regcache, -1, buf, sect_list->size);
1121 /* PRSTATUS still needs to be treated specially. */
1122 if (strcmp (sect_list->sect_name, ".reg") == 0)
1123 note_data = (char *) elfcore_write_prstatus
1124 (obfd, note_data, note_size, lwp,
1125 gdb_signal_to_host (stop_signal), buf);
1127 note_data = (char *) elfcore_write_register_note
1128 (obfd, note_data, note_size,
1129 sect_list->sect_name, buf, sect_list->size);
1140 /* Fetch the siginfo data for the current thread, if it exists. If
1141 there is no data, or we could not read it, return NULL. Otherwise,
1142 return a newly malloc'd buffer holding the data and fill in *SIZE
1143 with the size of the data. The caller is responsible for freeing
1147 linux_get_siginfo_data (struct gdbarch *gdbarch, LONGEST *size)
1149 struct type *siginfo_type;
1152 struct cleanup *cleanups;
1154 if (!gdbarch_get_siginfo_type_p (gdbarch))
1157 siginfo_type = gdbarch_get_siginfo_type (gdbarch);
1159 buf = xmalloc (TYPE_LENGTH (siginfo_type));
1160 cleanups = make_cleanup (xfree, buf);
1162 bytes_read = target_read (¤t_target, TARGET_OBJECT_SIGNAL_INFO, NULL,
1163 buf, 0, TYPE_LENGTH (siginfo_type));
1164 if (bytes_read == TYPE_LENGTH (siginfo_type))
1166 discard_cleanups (cleanups);
1171 do_cleanups (cleanups);
1178 struct linux_corefile_thread_data
1180 struct gdbarch *gdbarch;
1185 enum gdb_signal stop_signal;
1186 linux_collect_thread_registers_ftype collect;
1189 /* Called by gdbthread.c once per thread. Records the thread's
1190 register state for the corefile note section. */
1193 linux_corefile_thread_callback (struct thread_info *info, void *data)
1195 struct linux_corefile_thread_data *args = data;
1197 if (ptid_get_pid (info->ptid) == args->pid)
1199 struct cleanup *old_chain;
1200 struct regcache *regcache;
1201 gdb_byte *siginfo_data;
1202 LONGEST siginfo_size = 0;
1204 regcache = get_thread_arch_regcache (info->ptid, args->gdbarch);
1206 old_chain = save_inferior_ptid ();
1207 inferior_ptid = info->ptid;
1208 target_fetch_registers (regcache, -1);
1209 siginfo_data = linux_get_siginfo_data (args->gdbarch, &siginfo_size);
1210 do_cleanups (old_chain);
1212 old_chain = make_cleanup (xfree, siginfo_data);
1214 args->note_data = args->collect (regcache, info->ptid, args->obfd,
1215 args->note_data, args->note_size,
1218 /* Don't return anything if we got no register information above,
1219 such a core file is useless. */
1220 if (args->note_data != NULL)
1221 if (siginfo_data != NULL)
1222 args->note_data = elfcore_write_note (args->obfd,
1226 siginfo_data, siginfo_size);
1228 do_cleanups (old_chain);
1231 return !args->note_data;
1234 /* Fill the PRPSINFO structure with information about the process being
1235 debugged. Returns 1 in case of success, 0 for failures. Please note that
1236 even if the structure cannot be entirely filled (e.g., GDB was unable to
1237 gather information about the process UID/GID), this function will still
1238 return 1 since some information was already recorded. It will only return
1239 0 iff nothing can be gathered. */
1242 linux_fill_prpsinfo (struct elf_internal_linux_prpsinfo *p)
1244 /* The filename which we will use to obtain some info about the process.
1245 We will basically use this to store the `/proc/PID/FILENAME' file. */
1247 /* The full name of the program which generated the corefile. */
1249 /* The basename of the executable. */
1250 const char *basename;
1251 /* The arguments of the program. */
1254 /* The contents of `/proc/PID/stat' and `/proc/PID/status' files. */
1255 char *proc_stat, *proc_status;
1256 /* Temporary buffer. */
1258 /* The valid states of a process, according to the Linux kernel. */
1259 const char valid_states[] = "RSDTZW";
1260 /* The program state. */
1261 const char *prog_state;
1262 /* The state of the process. */
1264 /* The PID of the program which generated the corefile. */
1266 /* Process flags. */
1267 unsigned int pr_flag;
1268 /* Process nice value. */
1270 /* The number of fields read by `sscanf'. */
1276 gdb_assert (p != NULL);
1278 /* Obtaining PID and filename. */
1279 pid = ptid_get_pid (inferior_ptid);
1280 xsnprintf (filename, sizeof (filename), "/proc/%d/cmdline", (int) pid);
1281 fname = target_fileio_read_stralloc (filename);
1283 if (fname == NULL || *fname == '\0')
1285 /* No program name was read, so we won't be able to retrieve more
1286 information about the process. */
1291 c = make_cleanup (xfree, fname);
1292 memset (p, 0, sizeof (*p));
1294 /* Defining the PID. */
1297 /* Copying the program name. Only the basename matters. */
1298 basename = lbasename (fname);
1299 strncpy (p->pr_fname, basename, sizeof (p->pr_fname));
1300 p->pr_fname[sizeof (p->pr_fname) - 1] = '\0';
1302 infargs = get_inferior_args ();
1304 psargs = xstrdup (fname);
1305 if (infargs != NULL)
1306 psargs = reconcat (psargs, psargs, " ", infargs, NULL);
1308 make_cleanup (xfree, psargs);
1310 strncpy (p->pr_psargs, psargs, sizeof (p->pr_psargs));
1311 p->pr_psargs[sizeof (p->pr_psargs) - 1] = '\0';
1313 xsnprintf (filename, sizeof (filename), "/proc/%d/stat", (int) pid);
1314 proc_stat = target_fileio_read_stralloc (filename);
1315 make_cleanup (xfree, proc_stat);
1317 if (proc_stat == NULL || *proc_stat == '\0')
1319 /* Despite being unable to read more information about the
1320 process, we return 1 here because at least we have its
1321 command line, PID and arguments. */
1326 /* Ok, we have the stats. It's time to do a little parsing of the
1327 contents of the buffer, so that we end up reading what we want.
1329 The following parsing mechanism is strongly based on the
1330 information generated by the `fs/proc/array.c' file, present in
1331 the Linux kernel tree. More details about how the information is
1332 displayed can be obtained by seeing the manpage of proc(5),
1333 specifically under the entry of `/proc/[pid]/stat'. */
1335 /* Getting rid of the PID, since we already have it. */
1336 while (isdigit (*proc_stat))
1339 proc_stat = skip_spaces (proc_stat);
1341 /* ps command also relies on no trailing fields ever contain ')'. */
1342 proc_stat = strrchr (proc_stat, ')');
1343 if (proc_stat == NULL)
1350 proc_stat = skip_spaces (proc_stat);
1352 n_fields = sscanf (proc_stat,
1353 "%c" /* Process state. */
1354 "%d%d%d" /* Parent PID, group ID, session ID. */
1355 "%*d%*d" /* tty_nr, tpgid (not used). */
1357 "%*s%*s%*s%*s" /* minflt, cminflt, majflt,
1358 cmajflt (not used). */
1359 "%*s%*s%*s%*s" /* utime, stime, cutime,
1360 cstime (not used). */
1361 "%*s" /* Priority (not used). */
1364 &p->pr_ppid, &p->pr_pgrp, &p->pr_sid,
1370 /* Again, we couldn't read the complementary information about
1371 the process state. However, we already have minimal
1372 information, so we just return 1 here. */
1377 /* Filling the structure fields. */
1378 prog_state = strchr (valid_states, pr_sname);
1379 if (prog_state != NULL)
1380 p->pr_state = prog_state - valid_states;
1383 /* Zero means "Running". */
1387 p->pr_sname = p->pr_state > 5 ? '.' : pr_sname;
1388 p->pr_zomb = p->pr_sname == 'Z';
1389 p->pr_nice = pr_nice;
1390 p->pr_flag = pr_flag;
1392 /* Finally, obtaining the UID and GID. For that, we read and parse the
1393 contents of the `/proc/PID/status' file. */
1394 xsnprintf (filename, sizeof (filename), "/proc/%d/status", (int) pid);
1395 proc_status = target_fileio_read_stralloc (filename);
1396 make_cleanup (xfree, proc_status);
1398 if (proc_status == NULL || *proc_status == '\0')
1400 /* Returning 1 since we already have a bunch of information. */
1405 /* Extracting the UID. */
1406 tmpstr = strstr (proc_status, "Uid:");
1409 /* Advancing the pointer to the beginning of the UID. */
1410 tmpstr += sizeof ("Uid:");
1411 while (*tmpstr != '\0' && !isdigit (*tmpstr))
1414 if (isdigit (*tmpstr))
1415 p->pr_uid = strtol (tmpstr, &tmpstr, 10);
1418 /* Extracting the GID. */
1419 tmpstr = strstr (proc_status, "Gid:");
1422 /* Advancing the pointer to the beginning of the GID. */
1423 tmpstr += sizeof ("Gid:");
1424 while (*tmpstr != '\0' && !isdigit (*tmpstr))
1427 if (isdigit (*tmpstr))
1428 p->pr_gid = strtol (tmpstr, &tmpstr, 10);
1436 /* Fills the "to_make_corefile_note" target vector. Builds the note
1437 section for a corefile, and returns it in a malloc buffer. */
1440 linux_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size,
1441 linux_collect_thread_registers_ftype collect)
1443 struct linux_corefile_thread_data thread_args;
1444 struct elf_internal_linux_prpsinfo prpsinfo;
1445 char *note_data = NULL;
1449 if (linux_fill_prpsinfo (&prpsinfo))
1451 if (gdbarch_elfcore_write_linux_prpsinfo_p (gdbarch))
1453 note_data = gdbarch_elfcore_write_linux_prpsinfo (gdbarch, obfd,
1454 note_data, note_size,
1459 if (gdbarch_ptr_bit (gdbarch) == 64)
1460 note_data = elfcore_write_linux_prpsinfo64 (obfd,
1461 note_data, note_size,
1464 note_data = elfcore_write_linux_prpsinfo32 (obfd,
1465 note_data, note_size,
1470 /* Thread register information. */
1471 thread_args.gdbarch = gdbarch;
1472 thread_args.pid = ptid_get_pid (inferior_ptid);
1473 thread_args.obfd = obfd;
1474 thread_args.note_data = note_data;
1475 thread_args.note_size = note_size;
1476 thread_args.stop_signal = find_stop_signal ();
1477 thread_args.collect = collect;
1478 iterate_over_threads (linux_corefile_thread_callback, &thread_args);
1479 note_data = thread_args.note_data;
1483 /* Auxillary vector. */
1484 auxv_len = target_read_alloc (¤t_target, TARGET_OBJECT_AUXV,
1488 note_data = elfcore_write_note (obfd, note_data, note_size,
1489 "CORE", NT_AUXV, auxv, auxv_len);
1496 /* SPU information. */
1497 note_data = linux_spu_make_corefile_notes (obfd, note_data, note_size);
1501 /* File mappings. */
1502 note_data = linux_make_mappings_corefile_notes (gdbarch, obfd,
1503 note_data, note_size);
1509 linux_make_corefile_notes_1 (struct gdbarch *gdbarch, bfd *obfd, int *note_size)
1511 /* FIXME: uweigand/2011-10-06: Once all GNU/Linux architectures have been
1512 converted to gdbarch_core_regset_sections, we no longer need to fall back
1513 to the target method at this point. */
1515 if (!gdbarch_core_regset_sections (gdbarch))
1516 return target_make_corefile_notes (obfd, note_size);
1518 return linux_make_corefile_notes (gdbarch, obfd, note_size,
1519 linux_collect_thread_registers);
1522 /* Implementation of `gdbarch_gdb_signal_from_target', as defined in
1523 gdbarch.h. This function is not static because it is exported to
1524 other -tdep files. */
1527 linux_gdb_signal_from_target (struct gdbarch *gdbarch, int signal)
1532 return GDB_SIGNAL_0;
1535 return GDB_SIGNAL_HUP;
1538 return GDB_SIGNAL_INT;
1541 return GDB_SIGNAL_QUIT;
1544 return GDB_SIGNAL_ILL;
1547 return GDB_SIGNAL_TRAP;
1550 return GDB_SIGNAL_ABRT;
1553 return GDB_SIGNAL_BUS;
1556 return GDB_SIGNAL_FPE;
1559 return GDB_SIGNAL_KILL;
1562 return GDB_SIGNAL_USR1;
1565 return GDB_SIGNAL_SEGV;
1568 return GDB_SIGNAL_USR2;
1571 return GDB_SIGNAL_PIPE;
1574 return GDB_SIGNAL_ALRM;
1577 return GDB_SIGNAL_TERM;
1580 return GDB_SIGNAL_CHLD;
1583 return GDB_SIGNAL_CONT;
1586 return GDB_SIGNAL_STOP;
1589 return GDB_SIGNAL_TSTP;
1592 return GDB_SIGNAL_TTIN;
1595 return GDB_SIGNAL_TTOU;
1598 return GDB_SIGNAL_URG;
1601 return GDB_SIGNAL_XCPU;
1604 return GDB_SIGNAL_XFSZ;
1606 case LINUX_SIGVTALRM:
1607 return GDB_SIGNAL_VTALRM;
1610 return GDB_SIGNAL_PROF;
1612 case LINUX_SIGWINCH:
1613 return GDB_SIGNAL_WINCH;
1615 /* No way to differentiate between SIGIO and SIGPOLL.
1616 Therefore, we just handle the first one. */
1618 return GDB_SIGNAL_IO;
1621 return GDB_SIGNAL_PWR;
1624 return GDB_SIGNAL_SYS;
1626 /* SIGRTMIN and SIGRTMAX are not continuous in <gdb/signals.def>,
1627 therefore we have to handle them here. */
1628 case LINUX_SIGRTMIN:
1629 return GDB_SIGNAL_REALTIME_32;
1631 case LINUX_SIGRTMAX:
1632 return GDB_SIGNAL_REALTIME_64;
1635 if (signal >= LINUX_SIGRTMIN + 1 && signal <= LINUX_SIGRTMAX - 1)
1637 int offset = signal - LINUX_SIGRTMIN + 1;
1639 return (enum gdb_signal) ((int) GDB_SIGNAL_REALTIME_33 + offset);
1642 return GDB_SIGNAL_UNKNOWN;
1645 /* Implementation of `gdbarch_gdb_signal_to_target', as defined in
1646 gdbarch.h. This function is not static because it is exported to
1647 other -tdep files. */
1650 linux_gdb_signal_to_target (struct gdbarch *gdbarch,
1651 enum gdb_signal signal)
1658 case GDB_SIGNAL_HUP:
1659 return LINUX_SIGHUP;
1661 case GDB_SIGNAL_INT:
1662 return LINUX_SIGINT;
1664 case GDB_SIGNAL_QUIT:
1665 return LINUX_SIGQUIT;
1667 case GDB_SIGNAL_ILL:
1668 return LINUX_SIGILL;
1670 case GDB_SIGNAL_TRAP:
1671 return LINUX_SIGTRAP;
1673 case GDB_SIGNAL_ABRT:
1674 return LINUX_SIGABRT;
1676 case GDB_SIGNAL_FPE:
1677 return LINUX_SIGFPE;
1679 case GDB_SIGNAL_KILL:
1680 return LINUX_SIGKILL;
1682 case GDB_SIGNAL_BUS:
1683 return LINUX_SIGBUS;
1685 case GDB_SIGNAL_SEGV:
1686 return LINUX_SIGSEGV;
1688 case GDB_SIGNAL_SYS:
1689 return LINUX_SIGSYS;
1691 case GDB_SIGNAL_PIPE:
1692 return LINUX_SIGPIPE;
1694 case GDB_SIGNAL_ALRM:
1695 return LINUX_SIGALRM;
1697 case GDB_SIGNAL_TERM:
1698 return LINUX_SIGTERM;
1700 case GDB_SIGNAL_URG:
1701 return LINUX_SIGURG;
1703 case GDB_SIGNAL_STOP:
1704 return LINUX_SIGSTOP;
1706 case GDB_SIGNAL_TSTP:
1707 return LINUX_SIGTSTP;
1709 case GDB_SIGNAL_CONT:
1710 return LINUX_SIGCONT;
1712 case GDB_SIGNAL_CHLD:
1713 return LINUX_SIGCHLD;
1715 case GDB_SIGNAL_TTIN:
1716 return LINUX_SIGTTIN;
1718 case GDB_SIGNAL_TTOU:
1719 return LINUX_SIGTTOU;
1724 case GDB_SIGNAL_XCPU:
1725 return LINUX_SIGXCPU;
1727 case GDB_SIGNAL_XFSZ:
1728 return LINUX_SIGXFSZ;
1730 case GDB_SIGNAL_VTALRM:
1731 return LINUX_SIGVTALRM;
1733 case GDB_SIGNAL_PROF:
1734 return LINUX_SIGPROF;
1736 case GDB_SIGNAL_WINCH:
1737 return LINUX_SIGWINCH;
1739 case GDB_SIGNAL_USR1:
1740 return LINUX_SIGUSR1;
1742 case GDB_SIGNAL_USR2:
1743 return LINUX_SIGUSR2;
1745 case GDB_SIGNAL_PWR:
1746 return LINUX_SIGPWR;
1748 case GDB_SIGNAL_POLL:
1749 return LINUX_SIGPOLL;
1751 /* GDB_SIGNAL_REALTIME_32 is not continuous in <gdb/signals.def>,
1752 therefore we have to handle it here. */
1753 case GDB_SIGNAL_REALTIME_32:
1754 return LINUX_SIGRTMIN;
1756 /* Same comment applies to _64. */
1757 case GDB_SIGNAL_REALTIME_64:
1758 return LINUX_SIGRTMAX;
1761 /* GDB_SIGNAL_REALTIME_33 to _64 are continuous. */
1762 if (signal >= GDB_SIGNAL_REALTIME_33
1763 && signal <= GDB_SIGNAL_REALTIME_63)
1765 int offset = signal - GDB_SIGNAL_REALTIME_33;
1767 return LINUX_SIGRTMIN + 1 + offset;
1773 /* To be called from the various GDB_OSABI_LINUX handlers for the
1774 various GNU/Linux architectures and machine types. */
1777 linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
1779 set_gdbarch_core_pid_to_str (gdbarch, linux_core_pid_to_str);
1780 set_gdbarch_info_proc (gdbarch, linux_info_proc);
1781 set_gdbarch_core_info_proc (gdbarch, linux_core_info_proc);
1782 set_gdbarch_find_memory_regions (gdbarch, linux_find_memory_regions);
1783 set_gdbarch_make_corefile_notes (gdbarch, linux_make_corefile_notes_1);
1784 set_gdbarch_has_shared_address_space (gdbarch,
1785 linux_has_shared_address_space);
1786 set_gdbarch_gdb_signal_from_target (gdbarch,
1787 linux_gdb_signal_from_target);
1788 set_gdbarch_gdb_signal_to_target (gdbarch,
1789 linux_gdb_signal_to_target);
1792 /* Provide a prototype to silence -Wmissing-prototypes. */
1793 extern initialize_file_ftype _initialize_linux_tdep;
1796 _initialize_linux_tdep (void)
1798 linux_gdbarch_data_handle =
1799 gdbarch_data_register_post_init (init_linux_gdbarch_data);