diff options
| -rw-r--r-- | gdb/ChangeLog | 4 | ||||
| -rw-r--r-- | gdb/mips-irix-tdep.c | 95 | ||||
| -rw-r--r-- | gdb/osabi.c | 1 | ||||
| -rw-r--r-- | gdb/osabi.h | 1 |
4 files changed, 101 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 10bb83b..3b38e6f 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -4,6 +4,10 @@ * solib-irix.c: ...to here. Revised substantially to work with generic solib framework. + * osabi.h (gdb_osabi): Add new enum constant GDB_OSABI_IRIX. + * osabi.c (gdb_osabi_names): Add corresponding string for Irix. + * mips-irix-tdep.c: New file. + 2002-07-26 Kevin Buettner <kevinb@redhat.com> * aix-thread.c (coff/internal.h, bfd/libcoff.h, pthread.h): Remove diff --git a/gdb/mips-irix-tdep.c b/gdb/mips-irix-tdep.c new file mode 100644 index 0000000..73183ca --- /dev/null +++ b/gdb/mips-irix-tdep.c @@ -0,0 +1,95 @@ +/* Target-dependent code for the MIPS architecture running on IRIX, + for GDB, the GNU Debugger. + + Copyright 2002 Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include "defs.h" +#include "osabi.h" + +#include "elf-bfd.h" + +static void +mips_irix_elf_osabi_sniff_abi_tag_sections (bfd *abfd, asection *sect, + void *obj) +{ + enum gdb_osabi *os_ident_ptr = obj; + const char *name; + unsigned int sectsize; + + name = bfd_get_section_name (abfd, sect); + sectsize = bfd_section_size (abfd, sect); + + if (strncmp (name, ".MIPS.", 6) == 0 && sectsize > 0) + { + /* The presence of a section named with a ".MIPS." prefix is + indicative of an IRIX binary. */ + *os_ident_ptr = GDB_OSABI_IRIX; + } +} + +static enum gdb_osabi +mips_irix_elf_osabi_sniffer (bfd *abfd) +{ + unsigned int elfosabi; + enum gdb_osabi osabi = GDB_OSABI_UNKNOWN; + + /* If the generic sniffer gets a hit, return and let other sniffers + get a crack at it. */ + bfd_map_over_sections (abfd, + generic_elf_osabi_sniff_abi_tag_sections, + &osabi); + if (osabi != GDB_OSABI_UNKNOWN) + return GDB_OSABI_UNKNOWN; + + elfosabi = elf_elfheader (abfd)->e_ident[EI_OSABI]; + + if (elfosabi == ELFOSABI_NONE) + { + /* When elfosabi is ELFOSABI_NONE (0), then the ELF structures in the + file are conforming to the base specification for that machine + (there are no OS-specific extensions). In order to determine the + real OS in use we must look for OS notes that have been added. + + For IRIX, we simply look for sections named with .MIPS. as + prefixes. */ + bfd_map_over_sections (abfd, + mips_irix_elf_osabi_sniff_abi_tag_sections, + &osabi); + } + return osabi; +} + +static void +mips_irix_init_abi (struct gdbarch_info info, + struct gdbarch *gdbarch) +{ +} + +void +_initialize_mips_irix_tdep (void) +{ + /* Register an ELF OS ABI sniffer for IRIX binaries. */ + gdbarch_register_osabi_sniffer (bfd_arch_mips, + bfd_target_elf_flavour, + mips_irix_elf_osabi_sniffer); + + gdbarch_register_osabi (bfd_arch_mips, GDB_OSABI_IRIX, + mips_irix_init_abi); +} diff --git a/gdb/osabi.c b/gdb/osabi.c index c152cb4..580c7e1 100644 --- a/gdb/osabi.c +++ b/gdb/osabi.c @@ -42,6 +42,7 @@ static const char * const gdb_osabi_names[] = "Windows CE", "DJGPP", "NetWare", + "Irix", "LynxOS", "ARM EABI v1", diff --git a/gdb/osabi.h b/gdb/osabi.h index 1654f9d..f62bde7 100644 --- a/gdb/osabi.h +++ b/gdb/osabi.h @@ -39,6 +39,7 @@ enum gdb_osabi GDB_OSABI_WINCE, GDB_OSABI_GO32, GDB_OSABI_NETWARE, + GDB_OSABI_IRIX, GDB_OSABI_LYNXOS, GDB_OSABI_ARM_EABI_V1, |