diff options
| -rw-r--r-- | gdb/ChangeLog | 15 | ||||
| -rw-r--r-- | gdb/Makefile.in | 4 | ||||
| -rw-r--r-- | gdb/configure.tgt | 13 | ||||
| -rw-r--r-- | gdb/defs.h | 1 | ||||
| -rw-r--r-- | gdb/i386-dicos-tdep.c | 115 | ||||
| -rw-r--r-- | gdb/osabi.c | 1 |
6 files changed, 149 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index b45350a..5efa58e 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,20 @@ 2008-05-01 Pedro Alves <pedro@codesourcery.com> + * configure.tgt: Add i[34567]86-*-dicos* and x86_64-*-dicos*. + (i[34567]86-*-dicos*, x86_64-*-dicos*): + Set gdb_osabi to GDB_OSABI_DICOS. + + * defs.h (enum gdb_osabi): Add GDB_OSABI_DICOS. + * osabi.c (gdb_osabi_name): Add "DICOS". + + * i386-dicos-tdep.c: New file. + + * Makefile.in (ALL_TARGET_OBS): Add i386-dicos-tdep.o. + (ALLDEPFILES): Add i386-dicos-tdep.c. + (i386-dicos-tdep.o): New rule. + +2008-05-01 Pedro Alves <pedro@codesourcery.com> + * linux-nat.c (linux_nat_switch_fork): Reinit GDB's thread list and register the fork's PTID as a thread. diff --git a/gdb/Makefile.in b/gdb/Makefile.in index a98351c..2000a0a 100644 --- a/gdb/Makefile.in +++ b/gdb/Makefile.in @@ -464,6 +464,7 @@ ALL_TARGET_OBS = \ i386bsd-tdep.o i386-cygwin-tdep.o i386fbsd-tdep.o i386gnu-tdep.o \ i386-linux-tdep.o i386nbsd-tdep.o i386-nto-tdep.o i386obsd-tdep.o \ i386-sol2-tdep.o i386-tdep.o i387-tdep.o \ + i386-dicos-tdep.o \ iq2000-tdep.o \ m32c-tdep.o \ m32r-linux-tdep.o m32r-tdep.o \ @@ -1572,6 +1573,7 @@ ALLDEPFILES = \ i386bsd-nat.c i386bsd-tdep.c i386fbsd-nat.c i386fbsd-tdep.c \ i386nbsd-nat.c i386nbsd-tdep.c i386obsd-nat.c i386obsd-tdep.c \ i387-tdep.c \ + i386-dicos-tdep.c \ i386-linux-tdep.c i386-nat.c \ i386-sol2-nat.c i386-sol2-tdep.c \ i386gnu-nat.c i386gnu-tdep.c \ @@ -2235,6 +2237,8 @@ i386bsd-tdep.o: i386bsd-tdep.c $(defs_h) $(arch_utils_h) $(frame_h) \ i386-cygwin-tdep.o: i386-cygwin-tdep.c $(defs_h) $(osabi_h) $(gdb_string_h) \ $(i386_tdep_h) $(regset_h) $(gdb_obstack_h) $(xml_support_h) \ $(gdbcore_h) $(solib_h) $(solib_target_h) $(i386_cygwin_tdep_h) +i386-dicos-tdep.o: i386-dicos-tdep.c $(defs_h) $(osabi_h) $(gdb_string_h) \ + $(solib_h) $(solib_target_h) i386fbsd-nat.o: i386fbsd-nat.c $(defs_h) $(inferior_h) $(regcache_h) \ $(target_h) $(fbsd_nat_h) $(i386_tdep_h) $(i386bsd_nat_h) \ $(bsd_kvm_h) diff --git a/gdb/configure.tgt b/gdb/configure.tgt index 36ac71e..3b965fc 100644 --- a/gdb/configure.tgt +++ b/gdb/configure.tgt @@ -145,6 +145,12 @@ hppa*-*-*) gdb_target_obs="hppa-tdep.o" ;; +i[34567]86-*-dicos*) + # Target: DICOS/i386 + gdb_target_obs="i386-tdep.o i387-tdep.o \ + i386-dicos-tdep.o \ + corelow.o solib.o solib-target.o" + ;; i[34567]86-*-freebsd* | i[34567]86-*-kfreebsd*-gnu) # Target: FreeBSD/i386 gdb_target_obs="i386-tdep.o i387-tdep.o i386bsd-tdep.o i386fbsd-tdep.o \ @@ -491,6 +497,12 @@ vax-*-*) gdb_target_obs="vax-tdep.o" ;; +x86_64-*-dicos*) + # Target: DICOS/x86-64 + gdb_target_obs="amd64-tdep.o i386-tdep.o i387-tdep.o \ + i386-dicos-tdep.o \ + corelow.o solib.o solib-target.o" + ;; x86_64-*-linux*) # Target: GNU/Linux x86-64 gdb_target_obs="amd64-tdep.o amd64-linux-tdep.o i386-tdep.o \ @@ -542,4 +554,5 @@ m68*-*-openbsd* | m88*-*-openbsd* | vax-*-openbsd*) ;; *-*-mingw32ce*) gdb_osabi=GDB_OSABI_WINCE ;; *-*-mingw* | *-*-cygwin*) gdb_osabi=GDB_OSABI_CYGWIN ;; +*-*-dicos*) gdb_osabi=GDB_OSABI_DICOS ;; esac @@ -924,6 +924,7 @@ enum gdb_osabi GDB_OSABI_CYGWIN, GDB_OSABI_AIX, + GDB_OSABI_DICOS, GDB_OSABI_INVALID /* keep this last */ }; diff --git a/gdb/i386-dicos-tdep.c b/gdb/i386-dicos-tdep.c new file mode 100644 index 0000000..e92313a --- /dev/null +++ b/gdb/i386-dicos-tdep.c @@ -0,0 +1,115 @@ +/* Target-dependent code for DICOS running on i386's, for GDB. + + Copyright (C) 2008 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 3 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, see <http://www.gnu.org/licenses/>. */ + +#include "defs.h" +#include "osabi.h" +#include "gdb_string.h" +#include "solib.h" +#include "solib-target.h" + +static void +i386_dicos_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) +{ + struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); + + set_solib_ops (gdbarch, &solib_target_so_ops); +} + +/* Look in the elf symbol table of ABFD for a symbol named WANTED. + Return true if found. */ +static int +i386_dicos_bfd_has_symbol_p (bfd *abfd, const char *wanted) +{ + long storage_needed; + int ret = 0; + asymbol **symbol_table = NULL; + + storage_needed = bfd_get_symtab_upper_bound (abfd); + if (storage_needed < 0) + { + warning (_("Can't read elf symbols from %s: %s"), bfd_get_filename (abfd), + bfd_errmsg (bfd_get_error ())); + return 0; + } + + if (storage_needed > 0) + { + long i, symcount; + + symbol_table = xmalloc (storage_needed); + symcount = bfd_canonicalize_symtab (abfd, symbol_table); + + if (symcount < 0) + warning (_("Can't read elf symbols from %s: %s"), + bfd_get_filename (abfd), + bfd_errmsg (bfd_get_error ())); + else + { + for (i = 0; i < symcount; i++) + { + asymbol *sym = symbol_table[i]; + if (sym->name != NULL + && wanted[0] == sym->name[0] + && strcmp (wanted + 1, sym->name + 1) == 0) + { + ret = 1; + break; + } + } + } + } + + xfree (symbol_table); + return ret; +} + +static enum gdb_osabi +i386_dicos_osabi_sniffer (bfd *abfd) +{ + char *target_name = bfd_get_target (abfd); + + /* DICOS debug info files don't have a .note.ABI-tag marker or + something similar. We do know there's always a "header" section + of 36 bytes, and there's always a "Dicos_loadModuleInfo" symbol + defined. Look for the section first, as that should be + cheaper. */ + if (strcmp (target_name, "elf32-i386") == 0) + { + asection *section = bfd_get_section_by_name (abfd, "header"); + if (section + && bfd_section_size (abfd, section) == 36 + && i386_dicos_bfd_has_symbol_p (abfd, "Dicos_loadModuleInfo")) + return GDB_OSABI_DICOS; + } + + return GDB_OSABI_UNKNOWN; +} + +/* Provide a prototype to silence -Wmissing-prototypes. */ +void _initialize_i386_dicos_tdep (void); + +void +_initialize_i386_dicos_tdep (void) +{ + gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour, + i386_dicos_osabi_sniffer); + + gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_DICOS, + i386_dicos_init_abi); +} diff --git a/gdb/osabi.c b/gdb/osabi.c index 04236fc..64f0910 100644 --- a/gdb/osabi.c +++ b/gdb/osabi.c @@ -72,6 +72,7 @@ static const char * const gdb_osabi_names[] = "Cygwin", "AIX", + "DICOS", "<invalid>" }; |