gdb/config/powerpc/tm-linux.h

   1 /* Definitions to target GDB to Linux on 386.
   2    Copyright 1992, 1993 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20 #ifndef TM_LINUX_H
  21 #define TM_LINUX_H
  22
  23 #include "powerpc/tm-ppc-eabi.h"
  24 /* Avoid warning from redefinition in tm-sysv4.h (included from tm-linux.h) */
  25 #undef SKIP_TRAMPOLINE_CODE
  26 #include "tm-linux.h"
  27
  28 /* We can single step on linux */
  29 #undef  SOFTWARE_SINGLE_STEP
  30 #define SOFTWARE_SINGLE_STEP(p,q) abort() /* Will never execute! */
  31 #undef  SOFTWARE_SINGLE_STEP_P
  32 #define SOFTWARE_SINGLE_STEP_P 0
  33
  34 /* Make sure nexti gets the help it needs for debugging assembly code
  35    without symbols */
  36
  37 #define AT_SUBROUTINE_CALL_INSTRUCTION_TARGET(prevpc,stoppc) \
  38    at_subroutine_call_instruction_target(prevpc,stoppc)
  39 extern int at_subroutine_call_instruction_target();
  40
  41 /* We _want_ the SVR4 section offset calculations (see syms_from_objfile()
  42    in symfile.c) */
  43 #undef IBM6000_TARGET
  44
  45 /* Offset to saved PC in sigcontext, from <linux/signal.h>.  */
  46 #define SIGCONTEXT_PC_OFFSET 184
  47
  48 extern CORE_ADDR ppc_linux_skip_trampoline_code (CORE_ADDR pc);
  49 #undef SKIP_TRAMPOLINE_CODE
  50 #define SKIP_TRAMPOLINE_CODE(pc) ppc_linux_skip_trampoline_code (pc)
  51
  52 extern int ppc_linux_in_sigtramp (CORE_ADDR pc, char *func_name);
  53 #undef IN_SIGTRAMP
  54 #define IN_SIGTRAMP(pc,func_name) ppc_linux_in_sigtramp (pc,func_name)
  55
  56 extern unsigned long ppc_linux_frame_saved_pc (struct frame_info *);
  57 #undef FRAME_SAVED_PC
  58 #define FRAME_SAVED_PC(FRAME) ppc_linux_frame_saved_pc (FRAME)
  59
  60 extern void ppc_linux_init_extra_frame_info (int fromleaf, struct frame_info *);
  61 #undef  INIT_EXTRA_FRAME_INFO
  62 #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \
  63   ppc_linux_init_extra_frame_info (fromleaf, fi)
  64
  65 extern int ppc_linux_frameless_function_invocation (struct frame_info *);
  66 #undef FRAMELESS_FUNCTION_INVOCATION
  67 #define FRAMELESS_FUNCTION_INVOCATION(FI) \
  68   (ppc_linux_frameless_function_invocation (FI))
  69
  70 extern void ppc_linux_frame_init_saved_regs (struct frame_info *);
  71 #undef FRAME_INIT_SAVED_REGS
  72 #define FRAME_INIT_SAVED_REGS(FI) ppc_linux_frame_init_saved_regs (FI)
  73
  74 CORE_ADDR ppc_linux_frame_chain (struct frame_info *);
  75 #undef FRAME_CHAIN
  76 #define FRAME_CHAIN(thisframe) ppc_linux_frame_chain (thisframe)
  77
  78 CORE_ADDR ppc_sysv_abi_push_arguments (int, struct value **, CORE_ADDR, int,
  79                                        CORE_ADDR);
  80 #undef PUSH_ARGUMENTS
  81 #define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
  82   (ppc_sysv_abi_push_arguments((nargs), (args), (sp), (struct_return), (struct_addr)))
  83
  84 #define CANNOT_FETCH_REGISTER(regno) ((regno) >= MQ_REGNUM)
  85 #define CANNOT_STORE_REGISTER(regno) ((regno) >= MQ_REGNUM)
  86
  87 /* Linux doesn't use the PowerOpen ABI for function pointer representation */
  88 #undef CONVERT_FROM_FUNC_PTR_ADDR
  89
  90 #if 0 /* If skip_prologue() isn't too greedy, we don't need this */
  91 /* There is some problem with the debugging symbols generated by the
  92    compiler such that the debugging symbol for the first line of a
  93    function overlap with the function prologue.  */
  94 #define PROLOGUE_FIRSTLINE_OVERLAP
  95 #endif
  96
  97 /* Needed to handled the self-modifying code situation due to the dynamic
  98    linker. */
  99 int ppc_linux_memory_remove_breakpoint (CORE_ADDR addr, char *contents_cache);
 100 #undef MEMORY_REMOVE_BREAKPOINT
 101 #define MEMORY_REMOVE_BREAKPOINT(addr, contents_cache) \
 102   ppc_linux_memory_remove_breakpoint(addr, contents_cache)
 103
 104 /* N_FUN symbols in shared libaries have 0 for their values and need
 105    to be relocated. */
 106 #define SOFUN_ADDRESS_MAYBE_MISSING
 107
 108 #endif  /* #ifndef TM_LINUX_H */