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1 /* Target-dependent code for DICOS running on x86-64's, for GDB. | 1 /* Target-dependent code for DICOS running on x86-64's, for GDB. |
2 | 2 |
3 Copyright (C) 2009-2012 Free Software Foundation, Inc. | 3 Copyright (C) 2009-2012 Free Software Foundation, Inc. |
4 | 4 |
5 This file is part of GDB. | 5 This file is part of GDB. |
6 | 6 |
7 This program is free software; you can redistribute it and/or modify | 7 This program is free software; you can redistribute it and/or modify |
8 it under the terms of the GNU General Public License as published by | 8 it under the terms of the GNU General Public License as published by |
9 the Free Software Foundation; either version 3 of the License, or | 9 the Free Software Foundation; either version 3 of the License, or |
10 (at your option) any later version. | 10 (at your option) any later version. |
11 | 11 |
12 This program is distributed in the hope that it will be useful, | 12 This program is distributed in the hope that it will be useful, |
13 but WITHOUT ANY WARRANTY; without even the implied warranty of | 13 but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 GNU General Public License for more details. | 15 GNU General Public License for more details. |
16 | 16 |
17 You should have received a copy of the GNU General Public License | 17 You should have received a copy of the GNU General Public License |
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ | 18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
19 | 19 |
20 #include "defs.h" | 20 #include "defs.h" |
21 #include "osabi.h" | 21 #include "osabi.h" |
22 #include "gdb_string.h" | 22 #include "gdb_string.h" |
23 #include "amd64-tdep.h" | 23 #include "amd64-tdep.h" |
24 #include "dicos-tdep.h" | 24 #include "dicos-tdep.h" |
25 | 25 |
26 static CORE_ADDR | |
27 amd64_dicos_push_dummy_code (struct gdbarch *gdbarch, | |
28 CORE_ADDR sp, CORE_ADDR funaddr, | |
29 struct value **args, int nargs, | |
30 struct type *value_type, | |
31 CORE_ADDR *real_pc, CORE_ADDR *bp_addr, | |
32 struct regcache *regcache) | |
33 { | |
34 int bplen; | |
35 CORE_ADDR bppc = sp; | |
36 | |
37 gdbarch_breakpoint_from_pc (gdbarch, &bppc, &bplen); | |
38 *bp_addr = sp - bplen; | |
39 *real_pc = funaddr; | |
40 | |
41 return *bp_addr; | |
42 } | |
43 | |
44 static void | 26 static void |
45 amd64_dicos_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) | 27 amd64_dicos_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
46 { | 28 { |
47 struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | 29 struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
48 | 30 |
49 amd64_init_abi (info, gdbarch); | 31 amd64_init_abi (info, gdbarch); |
50 | 32 |
51 dicos_init_abi (gdbarch); | 33 dicos_init_abi (gdbarch); |
52 | |
53 set_gdbarch_push_dummy_code (gdbarch, amd64_dicos_push_dummy_code); | |
54 } | 34 } |
55 | 35 |
56 static enum gdb_osabi | 36 static enum gdb_osabi |
57 amd64_dicos_osabi_sniffer (bfd *abfd) | 37 amd64_dicos_osabi_sniffer (bfd *abfd) |
58 { | 38 { |
59 char *target_name = bfd_get_target (abfd); | 39 char *target_name = bfd_get_target (abfd); |
60 | 40 |
61 /* On amd64-DICOS, the Load Module's "header" section is 72 | 41 /* On amd64-DICOS, the Load Module's "header" section is 72 |
62 bytes. */ | 42 bytes. */ |
63 if (strcmp (target_name, "elf64-x86-64") == 0 | 43 if (strcmp (target_name, "elf64-x86-64") == 0 |
64 && dicos_load_module_p (abfd, 72)) | 44 && dicos_load_module_p (abfd, 72)) |
65 return GDB_OSABI_DICOS; | 45 return GDB_OSABI_DICOS; |
66 | 46 |
67 return GDB_OSABI_UNKNOWN; | 47 return GDB_OSABI_UNKNOWN; |
68 } | 48 } |
69 | 49 |
70 /* Provide a prototype to silence -Wmissing-prototypes. */ | 50 /* Provide a prototype to silence -Wmissing-prototypes. */ |
71 void _initialize_amd64_dicos_tdep (void); | 51 void _initialize_amd64_dicos_tdep (void); |
72 | 52 |
73 void | 53 void |
74 _initialize_amd64_dicos_tdep (void) | 54 _initialize_amd64_dicos_tdep (void) |
75 { | 55 { |
76 gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour, | 56 gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour, |
77 amd64_dicos_osabi_sniffer); | 57 amd64_dicos_osabi_sniffer); |
78 | 58 |
79 gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64, | 59 gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64, |
80 GDB_OSABI_DICOS, | 60 GDB_OSABI_DICOS, |
81 amd64_dicos_init_abi); | 61 amd64_dicos_init_abi); |
82 } | 62 } |
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