gdb/config/nm-linux.h

   1 /* Native support for GNU/Linux, for GDB, the GNU debugger.
   2    Copyright 1999, 2000
   3    Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   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 2 of the License, or
  10    (at your option) any later version.
  11
  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.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 /* Linux is svr4ish but not that much */
  23 #undef USE_PROC_FS
  24
  25 /* Tell gdb that we can attach and detach other processes */
  26 #define ATTACH_DETACH
  27
  28 /* We define this if link.h is available, because with ELF we use SVR4 style
  29    shared libraries. */
  30
  31 #ifdef HAVE_LINK_H
  32 #define SVR4_SHARED_LIBS
  33 #include "solib.h"             /* Support for shared libraries. */
  34 #endif
  35
  36 /* Support for the glibc linuxthreads package. */
  37
  38 struct objfile;
  39
  40 /* Hook to look at new objfiles (shared libraries) */
  41 extern void linuxthreads_new_objfile (struct objfile *objfile);
  42
  43 /* Method to print a human-readable thread description */
  44 extern char *linuxthreads_pid_to_str (ptid_t ptid);
  45
  46 extern int linuxthreads_prepare_to_proceed (int step);
  47 #define PREPARE_TO_PROCEED(select_it) linuxthreads_prepare_to_proceed (1)
  48
  49 /* Defined to make stepping-over-breakpoints be thread-atomic.  */
  50 #define USE_THREAD_STEP_NEEDED 1
  51
  52 /* Macros to extract process id and thread id from a composite pid/tid.
  53    Allocate lower 19 bits for process id, next 12 bits for thread id, and
  54    one bit for a flag to indicate a user thread vs. a kernel thread.  */
  55 #define PIDGET0(PID)           (((PID) & 0xffff))
  56 #define PIDGET(PID)           ((PIDGET0 (PID) == 0xffff) ? -1 : PIDGET0 (PID))
  57 #define TIDGET(PID)           (((PID) & 0x7fffffff) >> 16)
  58 #define MERGEPID(PID, TID)    (((PID) & 0xffff) | ((TID) << 16))
  59
  60 /* Use elf_gregset_t and elf_fpregset_t, rather than
  61    gregset_t and fpregset_t.  */
  62
  63 #define GDB_GREGSET_T  elf_gregset_t
  64 #define GDB_FPREGSET_T elf_fpregset_t