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1 /* Target-dependent code for QNX Neutrino x86. | 1 /* Target-dependent code for QNX Neutrino x86. |
2 | 2 |
3 Copyright (C) 2003-2004, 2007-2012 Free Software Foundation, Inc. | 3 Copyright (C) 2003-2013 Free Software Foundation, Inc. |
4 | 4 |
5 Contributed by QNX Software Systems Ltd. | 5 Contributed by QNX Software Systems Ltd. |
6 | 6 |
7 This file is part of GDB. | 7 This file is part of GDB. |
8 | 8 |
9 This program is free software; you can redistribute it and/or modify | 9 This program is free software; you can redistribute it and/or modify |
10 it under the terms of the GNU General Public License as published by | 10 it under the terms of the GNU General Public License as published by |
11 the Free Software Foundation; either version 3 of the License, or | 11 the Free Software Foundation; either version 3 of the License, or |
12 (at your option) any later version. | 12 (at your option) any later version. |
13 | 13 |
14 This program is distributed in the hope that it will be useful, | 14 This program is distributed in the hope that it will be useful, |
15 but WITHOUT ANY WARRANTY; without even the implied warranty of | 15 but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 GNU General Public License for more details. | 17 GNU General Public License for more details. |
18 | 18 |
19 You should have received a copy of the GNU General Public License | 19 You should have received a copy of the GNU General Public License |
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */ | 20 along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
21 | 21 |
22 #include "defs.h" | 22 #include "defs.h" |
23 #include "frame.h" | 23 #include "frame.h" |
24 #include "osabi.h" | 24 #include "osabi.h" |
25 #include "regcache.h" | 25 #include "regcache.h" |
26 #include "target.h" | 26 #include "target.h" |
27 | 27 |
28 #include "gdb_assert.h" | 28 #include "gdb_assert.h" |
29 #include "gdb_string.h" | 29 #include <string.h> |
30 | 30 |
31 #include "i386-tdep.h" | 31 #include "i386-tdep.h" |
32 #include "i387-tdep.h" | 32 #include "i387-tdep.h" |
33 #include "nto-tdep.h" | 33 #include "nto-tdep.h" |
34 #include "solib.h" | 34 #include "solib.h" |
35 #include "solib-svr4.h" | 35 #include "solib-svr4.h" |
36 | 36 |
37 #ifndef X86_CPU_FXSR | 37 #ifndef X86_CPU_FXSR |
38 #define X86_CPU_FXSR (1L << 12) | 38 #define X86_CPU_FXSR (1L << 12) |
39 #endif | 39 #endif |
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287 } | 287 } |
288 | 288 |
289 /* Assuming THIS_FRAME is a QNX Neutrino sigtramp routine, return the | 289 /* Assuming THIS_FRAME is a QNX Neutrino sigtramp routine, return the |
290 address of the associated sigcontext structure. */ | 290 address of the associated sigcontext structure. */ |
291 | 291 |
292 static CORE_ADDR | 292 static CORE_ADDR |
293 i386nto_sigcontext_addr (struct frame_info *this_frame) | 293 i386nto_sigcontext_addr (struct frame_info *this_frame) |
294 { | 294 { |
295 struct gdbarch *gdbarch = get_frame_arch (this_frame); | 295 struct gdbarch *gdbarch = get_frame_arch (this_frame); |
296 enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | 296 enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
297 char buf[4]; | 297 gdb_byte buf[4]; |
298 CORE_ADDR ptrctx; | 298 CORE_ADDR ptrctx; |
299 | 299 |
300 /* We store __ucontext_t addr in EDI register. */ | 300 /* We store __ucontext_t addr in EDI register. */ |
301 get_frame_register (this_frame, I386_EDI_REGNUM, buf); | 301 get_frame_register (this_frame, I386_EDI_REGNUM, buf); |
302 ptrctx = extract_unsigned_integer (buf, 4, byte_order); | 302 ptrctx = extract_unsigned_integer (buf, 4, byte_order); |
303 ptrctx += 24 /* Context pointer is at this offset. */; | 303 ptrctx += 24 /* Context pointer is at this offset. */; |
304 | 304 |
305 return ptrctx; | 305 return ptrctx; |
306 } | 306 } |
307 | 307 |
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376 | 376 |
377 void | 377 void |
378 _initialize_i386nto_tdep (void) | 378 _initialize_i386nto_tdep (void) |
379 { | 379 { |
380 init_i386nto_ops (); | 380 init_i386nto_ops (); |
381 gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_QNXNTO, | 381 gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_QNXNTO, |
382 i386nto_init_abi); | 382 i386nto_init_abi); |
383 gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour, | 383 gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour, |
384 nto_elf_osabi_sniffer); | 384 nto_elf_osabi_sniffer); |
385 } | 385 } |
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