| 1 | /* Target-dependent code for Cygwin running on i386's, for GDB. |
| 2 | |
| 3 | Copyright 2003 Free Software Foundation, Inc. |
| 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 2 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, write to the Free Software |
| 19 | Foundation, Inc., 59 Temple Place - Suite 330, |
| 20 | Boston, MA 02111-1307, USA. */ |
| 21 | |
| 22 | #include "defs.h" |
| 23 | #include "osabi.h" |
| 24 | |
| 25 | #include "gdb_string.h" |
| 26 | |
| 27 | #include "i386-tdep.h" |
| 28 | |
| 29 | static CORE_ADDR |
| 30 | i386_cygwin_skip_trampoline_code (CORE_ADDR pc) |
| 31 | { |
| 32 | return i386_pe_skip_trampoline_code (pc, NULL); |
| 33 | } |
| 34 | |
| 35 | static int |
| 36 | i386_cygwin_in_solib_call_trampoline (CORE_ADDR pc, char *name) |
| 37 | { |
| 38 | return (i386_pe_skip_trampoline_code (pc, name) != 0); |
| 39 | } |
| 40 | |
| 41 | static void |
| 42 | i386_cygwin_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
| 43 | { |
| 44 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
| 45 | |
| 46 | set_gdbarch_in_solib_call_trampoline (gdbarch, |
| 47 | i386_cygwin_in_solib_call_trampoline); |
| 48 | set_gdbarch_skip_trampoline_code (gdbarch, i386_cygwin_skip_trampoline_code); |
| 49 | |
| 50 | tdep->struct_return = reg_struct_return; |
| 51 | } |
| 52 | |
| 53 | static enum gdb_osabi |
| 54 | i386_cygwin_osabi_sniffer (bfd * abfd) |
| 55 | { |
| 56 | char *target_name = bfd_get_target (abfd); |
| 57 | |
| 58 | /* Interix also uses pei-i386. |
| 59 | We need a way to distinguish between the two. */ |
| 60 | if (strcmp (target_name, "pei-i386") == 0) |
| 61 | return GDB_OSABI_CYGWIN; |
| 62 | |
| 63 | return GDB_OSABI_UNKNOWN; |
| 64 | } |
| 65 | |
| 66 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
| 67 | void _initialize_i386_cygwin_tdep (void); |
| 68 | |
| 69 | void |
| 70 | _initialize_i386_cygwin_tdep (void) |
| 71 | { |
| 72 | gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_coff_flavour, |
| 73 | i386_cygwin_osabi_sniffer); |
| 74 | |
| 75 | gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_CYGWIN, |
| 76 | i386_cygwin_init_abi); |
| 77 | } |