Commit | Line | Data |
---|---|---|
b96d0a4e KB |
1 | /* Target-dependent code for the MIPS architecture running on IRIX, |
2 | for GDB, the GNU Debugger. | |
3 | ||
6aba47ca | 4 | Copyright (C) 2002, 2007 Free Software Foundation, Inc. |
b96d0a4e KB |
5 | |
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
b96d0a4e KB |
11 | (at your option) any later version. |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
b96d0a4e KB |
20 | |
21 | #include "defs.h" | |
22 | #include "osabi.h" | |
23 | ||
24 | #include "elf-bfd.h" | |
25 | ||
26 | static void | |
27 | mips_irix_elf_osabi_sniff_abi_tag_sections (bfd *abfd, asection *sect, | |
28 | void *obj) | |
29 | { | |
30 | enum gdb_osabi *os_ident_ptr = obj; | |
31 | const char *name; | |
32 | unsigned int sectsize; | |
33 | ||
34 | name = bfd_get_section_name (abfd, sect); | |
35 | sectsize = bfd_section_size (abfd, sect); | |
36 | ||
37 | if (strncmp (name, ".MIPS.", 6) == 0 && sectsize > 0) | |
38 | { | |
39 | /* The presence of a section named with a ".MIPS." prefix is | |
40 | indicative of an IRIX binary. */ | |
41 | *os_ident_ptr = GDB_OSABI_IRIX; | |
42 | } | |
43 | } | |
44 | ||
45 | static enum gdb_osabi | |
46 | mips_irix_elf_osabi_sniffer (bfd *abfd) | |
47 | { | |
48 | unsigned int elfosabi; | |
49 | enum gdb_osabi osabi = GDB_OSABI_UNKNOWN; | |
50 | ||
51 | /* If the generic sniffer gets a hit, return and let other sniffers | |
52 | get a crack at it. */ | |
53 | bfd_map_over_sections (abfd, | |
54 | generic_elf_osabi_sniff_abi_tag_sections, | |
55 | &osabi); | |
56 | if (osabi != GDB_OSABI_UNKNOWN) | |
57 | return GDB_OSABI_UNKNOWN; | |
58 | ||
59 | elfosabi = elf_elfheader (abfd)->e_ident[EI_OSABI]; | |
60 | ||
61 | if (elfosabi == ELFOSABI_NONE) | |
62 | { | |
63 | /* When elfosabi is ELFOSABI_NONE (0), then the ELF structures in the | |
64 | file are conforming to the base specification for that machine | |
65 | (there are no OS-specific extensions). In order to determine the | |
66 | real OS in use we must look for OS notes that have been added. | |
67 | ||
68 | For IRIX, we simply look for sections named with .MIPS. as | |
69 | prefixes. */ | |
70 | bfd_map_over_sections (abfd, | |
71 | mips_irix_elf_osabi_sniff_abi_tag_sections, | |
72 | &osabi); | |
73 | } | |
74 | return osabi; | |
75 | } | |
76 | ||
77 | static void | |
78 | mips_irix_init_abi (struct gdbarch_info info, | |
79 | struct gdbarch *gdbarch) | |
80 | { | |
81 | } | |
82 | ||
83 | void | |
84 | _initialize_mips_irix_tdep (void) | |
85 | { | |
86 | /* Register an ELF OS ABI sniffer for IRIX binaries. */ | |
87 | gdbarch_register_osabi_sniffer (bfd_arch_mips, | |
88 | bfd_target_elf_flavour, | |
89 | mips_irix_elf_osabi_sniffer); | |
90 | ||
05816f70 | 91 | gdbarch_register_osabi (bfd_arch_mips, 0, GDB_OSABI_IRIX, |
b96d0a4e KB |
92 | mips_irix_init_abi); |
93 | } |