GDB (API): /home/stan/gdb/src/gdb/shnbsd-tdep.c Source File

Go to the documentation of this file.
00001 /* Target-dependent code for NetBSD/sh.
00002 
00003    Copyright (C) 2002-2013 Free Software Foundation, Inc.
00004 
00005    Contributed by Wasabi Systems, Inc.
00006 
00007    This file is part of GDB.
00008 
00009    This program is free software; you can redistribute it and/or modify
00010    it under the terms of the GNU General Public License as published by
00011    the Free Software Foundation; either version 3 of the License, or
00012    (at your option) any later version.
00013 
00014    This program is distributed in the hope that it will be useful,
00015    but WITHOUT ANY WARRANTY; without even the implied warranty of
00016    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00017    GNU General Public License for more details.
00018 
00019    You should have received a copy of the GNU General Public License
00020    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
00021 
00022 #include "defs.h"
00023 #include "gdbcore.h"
00024 #include "regset.h"
00025 #include "value.h"
00026 #include "osabi.h"
00027 
00028 #include "gdb_string.h"
00029 
00030 #include "sh-tdep.h"
00031 #include "solib-svr4.h"
00032 
00033 /* Convert a register number into an offset into a ptrace
00034    register structure.  */
00035 static const struct sh_corefile_regmap regmap[] =
00036 {
00037   {R0_REGNUM,      20 * 4},
00038   {R0_REGNUM + 1,  19 * 4},
00039   {R0_REGNUM + 2,  18 * 4},
00040   {R0_REGNUM + 3,  17 * 4},
00041   {R0_REGNUM + 4,  16 * 4},
00042   {R0_REGNUM + 5,  15 * 4},
00043   {R0_REGNUM + 6,  14 * 4},
00044   {R0_REGNUM + 7,  13 * 4},
00045   {R0_REGNUM + 8,  12 * 4},
00046   {R0_REGNUM + 9,  11 * 4},
00047   {R0_REGNUM + 10, 10 * 4},
00048   {R0_REGNUM + 11,  9 * 4},
00049   {R0_REGNUM + 12,  8 * 4},
00050   {R0_REGNUM + 13,  7 * 4},
00051   {R0_REGNUM + 14,  6 * 4},
00052   {R0_REGNUM + 15,  5 * 4},
00053   {PC_REGNUM,       0 * 4},
00054   {SR_REGNUM,       1 * 4},
00055   {PR_REGNUM,       2 * 4},
00056   {MACH_REGNUM,     3 * 4},
00057   {MACL_REGNUM,     4 * 4},
00058   {-1 /* Terminator.  */, 0}
00059 };
00060 
00061 
00062 static void
00063 shnbsd_init_abi (struct gdbarch_info info,
00064                   struct gdbarch *gdbarch)
00065 {
00066   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
00067 
00068   tdep->core_gregmap = (struct sh_corefile_regmap *)regmap;
00069 
00070   set_solib_svr4_fetch_link_map_offsets
00071     (gdbarch, svr4_ilp32_fetch_link_map_offsets);
00072 }
00073 
00074 
00075 /* OpenBSD uses uses the traditional NetBSD core file format, even for
00076    ports that use ELF.  */
00077 #define GDB_OSABI_NETBSD_CORE GDB_OSABI_OPENBSD_ELF
00078 
00079 static enum gdb_osabi
00080 shnbsd_core_osabi_sniffer (bfd *abfd)
00081 {
00082   if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
00083     return GDB_OSABI_NETBSD_CORE;
00084 
00085   return GDB_OSABI_UNKNOWN;
00086 }
00087 
00088 /* Provide a prototype to silence -Wmissing-prototypes.  */
00089 extern initialize_file_ftype _initialize_shnbsd_tdep;
00090 
00091 void
00092 _initialize_shnbsd_tdep (void)
00093 {
00094   /* BFD doesn't set a flavour for NetBSD style a.out core files.  */
00095   gdbarch_register_osabi_sniffer (bfd_arch_sh, bfd_target_unknown_flavour,
00096                                   shnbsd_core_osabi_sniffer);
00097 
00098   gdbarch_register_osabi (bfd_arch_sh, 0, GDB_OSABI_NETBSD_ELF,
00099                           shnbsd_init_abi);
00100   gdbarch_register_osabi (bfd_arch_sh, 0, GDB_OSABI_OPENBSD_ELF,
00101                           shnbsd_init_abi);
00102 }