gdb/windows-tdep.h

   1 /* Copyright (C) 2008-2024 Free Software Foundation, Inc.
   2
   3    This file is part of GDB.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #ifndef GDB_WINDOWS_TDEP_H
  19 #define GDB_WINDOWS_TDEP_H
  20
  21 #include "frame-unwind.h"
  22
  23 struct gdbarch;
  24
  25 extern struct cmd_list_element *info_w32_cmdlist;
  26
  27 extern void init_w32_command_list (void);
  28
  29 extern void windows_xfer_shared_library (const char* so_name,
  30                                          CORE_ADDR load_addr,
  31                                          CORE_ADDR *text_offset_cached,
  32                                          struct gdbarch *gdbarch,
  33                                          std::string &xml);
  34
  35 extern ULONGEST windows_core_xfer_shared_libraries (struct gdbarch *gdbarch,
  36                                                     gdb_byte *readbuf,
  37                                                     ULONGEST offset,
  38                                                     ULONGEST len);
  39
  40 extern std::string windows_core_pid_to_str (struct gdbarch *gdbarch,
  41                                             ptid_t ptid);
  42
  43 /* To be called from the various GDB_OSABI_WINDOWS handlers for the
  44    various Windows architectures and machine types.  */
  45
  46 extern void windows_init_abi (struct gdbarch_info info,
  47                               struct gdbarch *gdbarch);
  48
  49 /* To be called from the various GDB_OSABI_CYGWIN handlers for the
  50    various Windows architectures and machine types.  */
  51
  52 extern void cygwin_init_abi (struct gdbarch_info info,
  53                              struct gdbarch *gdbarch);
  54
  55 /* Return true if the Portable Executable behind ABFD uses the Cygwin dll
  56    (cygwin1.dll).  */
  57
  58 extern bool is_linked_with_cygwin_dll (bfd *abfd);
  59
  60 /* Cygwin sigwapper unwinder.  Unwinds signal frames over
  61    sigbe/sigdelayed.  */
  62
  63 class cygwin_sigwrapper_frame_unwind : public frame_unwind
  64 {
  65 public:
  66   explicit cygwin_sigwrapper_frame_unwind
  67     (gdb::array_view<const gdb::array_view<const gdb_byte>> patterns_list);
  68
  69   /* Architecture-specific list of instruction patterns to match.
  70      It's a list of patterns instead of single pattern because some
  71      architectures want to match more than one function
  72      (sigbe/sigdelayed & friends).  Each potential instruction
  73      sequence is assumed to be followed by 4 bytes for tls::stackptr.
  74      If any pattern in the list matches, then the frame is assumed to
  75      be a sigwrapper frame.  */
  76   gdb::array_view<const gdb::array_view<const gdb_byte>> patterns_list;
  77
  78   /* Calculate the frame ID of a cygwin wrapper.  */
  79   void this_id (const frame_info_ptr &this_frame, void **this_prologue_cache,
  80                 struct frame_id *id) const override;
  81
  82   /* Sniff the frame to tell if this unwinder should be used.  */
  83   int sniff (const frame_info_ptr &this_frame,
  84                void **this_prologue_cache) const override;
  85
  86   /* Calculate the value of a given register in the previous frame.  */
  87   struct value *prev_register (const frame_info_ptr &this_frame,
  88                                void **this_cache,
  89                                int regnum) const override;
  90 };
  91
  92 #endif /* GDB_WINDOWS_TDEP_H */