Added i386 QNX Neutrino support.

1 files changed, 157 insertions, 0 deletions

diff --git a/gdb/nto-tdep.h b/gdb/nto-tdep.h
new file mode 100644
index 0000000..ac6f628
--- /dev/null
+++ b/gdb/nto-tdep.h
@@ -0,0 +1,157 @@
+/* nto-tdep.h - QNX Neutrino target header.
+
+   Copyright 2003 Free Software Foundation, Inc.
+
+   Contributed by QNX Software Systems Ltd.
+
+   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 2 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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _NTO_TDEP_H
+#define _NTO_TDEP_H
+
+#include "defs.h"
+#include "solist.h"
+
+/* Generic functions in nto-tdep.c.  */
+
+extern void nto_init_solib_absolute_prefix PARAMS ((void));
+
+char **nto_parse_redirection
+PARAMS ((char *start_argv[], char **in, char **out, char **err));
+
+int proc_iterate_over_mappings PARAMS ((int (*func) (int, CORE_ADDR)));
+
+void nto_relocate_section_addresses
+PARAMS ((struct so_list *, struct section_table *));
+
+int nto_map_arch_to_cputype PARAMS ((const char *));
+
+int nto_find_and_open_solib PARAMS ((char *, unsigned, char **));
+
+/* Dummy function for initializing nto_target_ops on targets which do
+   not define a particular regset.  */
+void nto_dummy_supply_regset PARAMS ((char *regs));
+
+/* Target operations defined for Neutrino targets (<target>-nto-tdep.c).  */
+
+struct nto_target_ops
+{
+  int nto_internal_debugging;
+  unsigned nto_cpuinfo_flags;
+  int nto_cpuinfo_valid;
+
+  int (*nto_regset_id) (int);
+  void (*nto_supply_gregset) (char *);
+  void (*nto_supply_fpregset) (char *);
+  void (*nto_supply_altregset) (char *);
+  void (*nto_supply_regset) (int, char *);
+  int (*nto_register_area) (int, int, unsigned *);
+  int (*nto_regset_fill) (int, char *);
+  struct link_map_offsets *(*nto_fetch_link_map_offsets) (void);
+};
+
+extern struct nto_target_ops current_nto_target;
+
+/* For 'maintenance debug nto-debug' command.  */
+#define nto_internal_debugging \
+	(current_nto_target.nto_internal_debugging)
+
+/* The CPUINFO flags from the remote.  Currently used by
+   i386 for fxsave but future proofing other hosts.
+   This is initialized in procfs_attach or nto_start_remote
+   depending on our host/target.  It would only be invalid
+   if we were talking to an older pdebug which didn't support
+   the cpuinfo message.  */
+#define nto_cpuinfo_flags \
+	(current_nto_target.nto_cpuinfo_flags)
+
+/* True if successfully retrieved cpuinfo from remote.  */
+#define nto_cpuinfo_valid \
+	(current_nto_target.nto_cpuinfo_valid)
+
+/* Given a register, return an id that represents the Neutrino
+   regset it came from.  If reg == -1 update all regsets.  */
+#define nto_regset_id(reg) \
+	(*current_nto_target.nto_regset_id) (reg)
+
+#define nto_supply_gregset(regs) \
+	(*current_nto_target.nto_supply_gregset) (regs)
+
+#define nto_supply_fpregset(regs) \
+	(*current_nto_target.nto_supply_fpregset) (regs)
+
+#define nto_supply_altregset(regs) \
+	(*current_nto_target.nto_supply_altregset) (regs)
+
+/* Given a regset, tell gdb about registers stored in data.  */
+#define nto_supply_regset(regset, data) \
+	(*current_nto_target.nto_supply_regset) (regset, data)
+
+/* Given a register and regset, calculate the offset into the regset
+   and stuff it into the last argument.  If regno is -1, calculate the
+   size of the entire regset.  Returns length of data, -1 if unknown
+   regset, 0 if unknown register.  */
+#define nto_register_area(reg, regset, off) \
+	(*current_nto_target.nto_register_area) (reg, regset, off)
+
+/* Build the Neutrino register set info into the data buffer.  
+   Return -1 if unknown regset, 0 otherwise.  */
+#define nto_regset_fill(regset, data) \
+	(*current_nto_target.nto_regset_fill) (regset, data)
+
+/* Gives the fetch_link_map_offsets function exposure outside of
+   solib-svr4.c so that we can override relocate_section_addresses().  */
+#define nto_fetch_link_map_offsets() \
+	(*current_nto_target.nto_fetch_link_map_offsets) ()
+
+/* Keep this consistant with neutrino syspage.h.  */
+enum
+{
+  CPUTYPE_X86,
+  CPUTYPE_PPC,
+  CPUTYPE_MIPS,
+  CPUTYPE_SPARE,
+  CPUTYPE_ARM,
+  CPUTYPE_SH,
+  CPUTYPE_UNKNOWN
+};
+
+enum
+{
+  OSTYPE_QNX4,
+  OSTYPE_NTO
+};
+
+/* These correspond to the DSMSG_* versions in dsmsgs.h. */
+enum
+{
+  NTO_REG_GENERAL,
+  NTO_REG_FLOAT,
+  NTO_REG_SYSTEM,
+  NTO_REG_ALT,
+  NTO_REG_END
+};
+
+typedef char qnx_reg64[8];
+
+typedef struct _debug_regs
+{
+  qnx_reg64 padding[1024];
+} nto_regset_t;
+
+#endif