| 1 | /* Target-dependent code for Solaris x86. |
| 2 | Copyright 2002 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GDB. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 59 Temple Place - Suite 330, |
| 19 | Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | #include "defs.h" |
| 22 | #include "value.h" |
| 23 | |
| 24 | #include "i386-tdep.h" |
| 25 | |
| 26 | static int |
| 27 | i386_sol2_pc_in_sigtramp (CORE_ADDR pc, char *name) |
| 28 | { |
| 29 | /* Signal handler frames under Solaris 2 are recognized by a return |
| 30 | address of 0xffffffff. */ |
| 31 | return (pc == 0xffffffff); |
| 32 | } |
| 33 | |
| 34 | /* Solaris 2. */ |
| 35 | |
| 36 | static void |
| 37 | i386_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
| 38 | { |
| 39 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
| 40 | |
| 41 | /* Solaris is SVR4-based. */ |
| 42 | i386_svr4_init_abi (info, gdbarch); |
| 43 | |
| 44 | /* Signal trampolines are different from SVR4, in fact they're |
| 45 | rather similar to BSD. */ |
| 46 | set_gdbarch_pc_in_sigtramp (gdbarch, i386_sol2_pc_in_sigtramp); |
| 47 | tdep->sigcontext_addr = i386bsd_sigcontext_addr; |
| 48 | tdep->sc_pc_offset = 36 + 14 * 4; |
| 49 | tdep->sc_sp_offset = 36 + 17 * 4; |
| 50 | |
| 51 | /* Assume that the prototype flag can be trusted. */ |
| 52 | set_gdbarch_coerce_float_to_double (gdbarch, |
| 53 | standard_coerce_float_to_double); |
| 54 | } |
| 55 | \f |
| 56 | |
| 57 | static enum gdb_osabi |
| 58 | i386_sol2_osabi_sniffer (bfd *abfd) |
| 59 | { |
| 60 | /* If we have a section named .SUNW_version, then it is almost |
| 61 | certainly Solaris 2. */ |
| 62 | if (bfd_get_section_by_name (abfd, ".SUNW_version")) |
| 63 | return GDB_OSABI_SOLARIS; |
| 64 | |
| 65 | return GDB_OSABI_UNKNOWN; |
| 66 | } |
| 67 | |
| 68 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
| 69 | void _initialize_i386_sol2_tdep (void); |
| 70 | |
| 71 | void |
| 72 | _initialize_i386_sol2_tdep (void) |
| 73 | { |
| 74 | /* Register an ELF OS ABI sniffer for Solaris 2 binaries. */ |
| 75 | gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour, |
| 76 | i386_sol2_osabi_sniffer); |
| 77 | |
| 78 | gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_SOLARIS, |
| 79 | i386_sol2_init_abi); |
| 80 | } |