gdb/config/mips/tm-linux.h

   1 /* Target-dependent definitions for GNU/Linux MIPS.
   2
   3    Copyright 2001, 2002 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 #ifndef TM_MIPSLINUX_H
  23 #define TM_MIPSLINUX_H
  24
  25 #include "mips/tm-mips.h"
  26
  27 /* We don't want to inherit tm-mips.h's shared library trampoline code.  */
  28
  29 #undef IN_SOLIB_CALL_TRAMPOLINE
  30 #undef IN_SOLIB_RETURN_TRAMPOLINE
  31 #undef SKIP_TRAMPOLINE_CODE
  32 #undef IGNORE_HELPER_CALL
  33
  34 /* GNU/Linux MIPS has __SIGRTMAX == 127.  */
  35
  36 #ifndef REALTIME_LO
  37 #define REALTIME_LO 32
  38 #define REALTIME_HI 128
  39 #endif
  40
  41 #include "config/tm-linux.h"
  42
  43 /* There's an E_MIPS_ABI_O32 flag in e_flags, but we don't use it - in
  44    fact, using it may violate the o32 ABI.  */
  45
  46 #define MIPS_DEFAULT_ABI MIPS_ABI_O32
  47
  48 /* Use target_specific function to define link map offsets.  */
  49
  50 extern struct link_map_offsets *mips_linux_svr4_fetch_link_map_offsets (void);
  51 #define SVR4_FETCH_LINK_MAP_OFFSETS() \
  52   mips_linux_svr4_fetch_link_map_offsets ()
  53
  54 /* Details about jmp_buf.  */
  55
  56 #define MIPS_LINUX_JB_ELEMENT_SIZE 4
  57 #define MIPS_LINUX_JB_PC 0
  58
  59 /* Figure out where the longjmp will land.  Slurp the arguments out of the
  60    stack.  We expect the first arg to be a pointer to the jmp_buf structure
  61    from which we extract the pc (JB_PC) that we will land at.  The pc is
  62    copied into ADDR.  This routine returns 1 on success.  */
  63
  64 #define GET_LONGJMP_TARGET(ADDR) mips_linux_get_longjmp_target(ADDR)
  65 extern int mips_linux_get_longjmp_target (CORE_ADDR *);
  66
  67 /* We do single stepping in software.  */
  68
  69 #define SOFTWARE_SINGLE_STEP_P() 1
  70 #define SOFTWARE_SINGLE_STEP(sig,bp_p) mips_software_single_step (sig, bp_p)
  71
  72 /* FIXME: This still needs to be implemented.  */
  73
  74 #undef  IN_SIGTRAMP
  75 #define IN_SIGTRAMP(pc, name)   (0)
  76
  77 #endif /* TM_MIPSLINUX_H */