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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.1/] [gdb/] [alpha-osf1-tdep.c] - Rev 281
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/* Target-dependent code for OSF/1 on Alpha. Copyright (C) 2002, 2003, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. This file is part of GDB. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "defs.h" #include "frame.h" #include "gdbcore.h" #include "value.h" #include "osabi.h" #include "gdb_string.h" #include "objfiles.h" #include "alpha-tdep.h" static int alpha_osf1_pc_in_sigtramp (struct gdbarch *gdbarch, CORE_ADDR pc, char *func_name) { return (func_name != NULL && strcmp ("__sigtramp", func_name) == 0); } static CORE_ADDR alpha_osf1_sigcontext_addr (struct frame_info *this_frame) { struct gdbarch *gdbarch = get_frame_arch (this_frame); enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); struct frame_info *next_frame = get_next_frame (this_frame); struct frame_id next_id = null_frame_id; if (next_frame != NULL) next_id = get_frame_id (next_frame); return (read_memory_integer (next_id.stack_addr, 8, byte_order)); } static void alpha_osf1_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) { struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); /* Hook into the MDEBUG frame unwinder. */ alpha_mdebug_init_abi (info, gdbarch); /* The next/step support via procfs on OSF1 is broken when running on multi-processor machines. We need to use software single stepping instead. */ set_gdbarch_software_single_step (gdbarch, alpha_software_single_step); tdep->sigcontext_addr = alpha_osf1_sigcontext_addr; tdep->pc_in_sigtramp = alpha_osf1_pc_in_sigtramp; tdep->jb_pc = 2; tdep->jb_elt_size = 8; } /* Provide a prototype to silence -Wmissing-prototypes. */ extern initialize_file_ftype _initialize_alpha_osf1_tdep; void _initialize_alpha_osf1_tdep (void) { gdbarch_register_osabi (bfd_arch_alpha, 0, GDB_OSABI_OSF1, alpha_osf1_init_abi); }
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