gdb/config/sparc/tm-sun4sol2.h

   1 /* Macro definitions for GDB for a Sun 4 running Solaris 2
   2    Copyright 1989, 1992, 1993, 1994 Free Software Foundation, Inc.
   3
   4 This file is part of GDB.
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 #include "sparc/tm-sparc.h"
  21 #include "tm-sysv4.h"
  22
  23 /* There are two different signal handler trampolines in Solaris2.  */
  24 #define IN_SIGTRAMP(pc, name) \
  25   ((name) \
  26    && (STREQ ("sigacthandler", name) || STREQ ("ucbsigvechandler", name)))
  27
  28 /* The signal handler gets a pointer to an ucontext as third argument
  29    if it is called from sigacthandler.  This is the offset to the saved
  30    PC within it.  sparc_frame_saved_pc knows how to deal with
  31    ucbsigvechandler.  */
  32 #define SIGCONTEXT_PC_OFFSET 44
  33
  34 #if 0   /* FIXME Setjmp/longjmp are not as well doc'd in SunOS 5.x yet */
  35
  36 /* Offsets into jmp_buf.  Not defined by Sun, but at least documented in a
  37    comment in <machine/setjmp.h>! */
  38
  39 #define JB_ELEMENT_SIZE 4       /* Size of each element in jmp_buf */
  40
  41 #define JB_ONSSTACK 0
  42 #define JB_SIGMASK 1
  43 #define JB_SP 2
  44 #define JB_PC 3
  45 #define JB_NPC 4
  46 #define JB_PSR 5
  47 #define JB_G1 6
  48 #define JB_O0 7
  49 #define JB_WBCNT 8
  50
  51 /* Figure out where the longjmp will land.  We expect that we have just entered
  52    longjmp and haven't yet setup the stack frame, so the args are still in the
  53    output regs.  %o0 (O0_REGNUM) points at the jmp_buf structure from which we
  54    extract the pc (JB_PC) that we will land at.  The pc is copied into ADDR.
  55    This routine returns true on success */
  56
  57 extern int
  58 get_longjmp_target PARAMS ((CORE_ADDR *));
  59
  60 #define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)
  61 #endif  /* 0 */
  62
  63 /* The SunPRO compiler puts out 0 instead of the address in an N_SO symbol.  */
  64 #define N_SO_ADDRESS_MAYBE_MISSING
  65
  66 #define FAULTED_USE_SIGINFO