projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| a15c5c83 PA |
1 | /* Target-dependent code for DICOS running on i386's, for GDB. |
| 2 | ||
| 0b302171 | 3 | Copyright (C) 2008-2012 Free Software Foundation, Inc. |
| a15c5c83 PA |
4 | |
| 5 | This file is part of GDB. | |
| 6 | ||
| 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 | |
| 9 | the Free Software Foundation; either version 3 of the License, or | |
| 10 | (at your option) any later version. | |
| 11 | ||
| 12 | This program is distributed in the hope that it will be useful, | |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | GNU General Public License for more details. | |
| 16 | ||
| 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/>. */ | |
| 19 | ||
| 20 | #include "defs.h" | |
| 21 | #include "osabi.h" | |
| 22 | #include "gdb_string.h" | |
| 4c1d2973 | 23 | #include "dicos-tdep.h" |
| 42f0bc8e PA |
24 | |
| 25 | static CORE_ADDR | |
| 56514771 PA |
26 | i386_dicos_push_dummy_code (struct gdbarch *gdbarch, |
| 27 | CORE_ADDR sp, CORE_ADDR funaddr, | |
| 28 | struct value **args, int nargs, | |
| 29 | struct type *value_type, | |
| 30 | CORE_ADDR *real_pc, CORE_ADDR *bp_addr, | |
| 31 | struct regcache *regcache) | |
| 42f0bc8e | 32 | { |
| 56514771 PA |
33 | int bplen; |
| 34 | CORE_ADDR bppc = sp; | |
| 35 | ||
| 36 | gdbarch_breakpoint_from_pc (gdbarch, &bppc, &bplen); | |
| 37 | *bp_addr = sp - bplen; | |
| 38 | *real_pc = funaddr; | |
| 39 | ||
| 40 | return *bp_addr; | |
| 42f0bc8e | 41 | } |
| a15c5c83 PA |
42 | |
| 43 | static void | |
| 44 | i386_dicos_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) | |
| 45 | { | |
| 46 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
| 47 | ||
| 4c1d2973 | 48 | dicos_init_abi (gdbarch); |
| 42f0bc8e | 49 | |
| 56514771 | 50 | set_gdbarch_push_dummy_code (gdbarch, i386_dicos_push_dummy_code); |
| a15c5c83 PA |
51 | } |
| 52 | ||
| 53 | static enum gdb_osabi | |
| 54 | i386_dicos_osabi_sniffer (bfd *abfd) | |
| 55 | { | |
| 56 | char *target_name = bfd_get_target (abfd); | |
| 57 | ||
| 4c1d2973 PA |
58 | /* On x86-DICOS, the Load Module's "header" section is 36 bytes. */ |
| 59 | if (strcmp (target_name, "elf32-i386") == 0 | |
| 60 | && dicos_load_module_p (abfd, 36)) | |
| 61 | return GDB_OSABI_DICOS; | |
| a15c5c83 PA |
62 | |
| 63 | return GDB_OSABI_UNKNOWN; | |
| 64 | } | |
| 65 | ||
| 66 | /* Provide a prototype to silence -Wmissing-prototypes. */ | |
| 67 | void _initialize_i386_dicos_tdep (void); | |
| 68 | ||
| 69 | void | |
| 70 | _initialize_i386_dicos_tdep (void) | |
| 71 | { | |
| 72 | gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour, | |
| 73 | i386_dicos_osabi_sniffer); | |
| 74 | ||
| 75 | gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_DICOS, | |
| 76 | i386_dicos_init_abi); | |
| 77 | } |