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* 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.
This commit is contained in:
Pedro Alves
parent
728c8f5867
commit
a15c5c831a
@ -1,3 +1,18 @@
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2008-05-01 Pedro Alves <pedro@codesourcery.com>
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* configure.tgt: Add i[34567]86-*-dicos* and x86_64-*-dicos*.
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(i[34567]86-*-dicos*, x86_64-*-dicos*):
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Set gdb_osabi to GDB_OSABI_DICOS.
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* defs.h (enum gdb_osabi): Add GDB_OSABI_DICOS.
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* osabi.c (gdb_osabi_name): Add "DICOS".
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* i386-dicos-tdep.c: New file.
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* Makefile.in (ALL_TARGET_OBS): Add i386-dicos-tdep.o.
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(ALLDEPFILES): Add i386-dicos-tdep.c.
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(i386-dicos-tdep.o): New rule.
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2008-05-01 Pedro Alves <pedro@codesourcery.com>
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* linux-nat.c (linux_nat_switch_fork): Reinit GDB's thread list
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@ -464,6 +464,7 @@ ALL_TARGET_OBS = \
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i386bsd-tdep.o i386-cygwin-tdep.o i386fbsd-tdep.o i386gnu-tdep.o \
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i386-linux-tdep.o i386nbsd-tdep.o i386-nto-tdep.o i386obsd-tdep.o \
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i386-sol2-tdep.o i386-tdep.o i387-tdep.o \
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i386-dicos-tdep.o \
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iq2000-tdep.o \
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m32c-tdep.o \
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m32r-linux-tdep.o m32r-tdep.o \
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@ -1572,6 +1573,7 @@ ALLDEPFILES = \
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i386bsd-nat.c i386bsd-tdep.c i386fbsd-nat.c i386fbsd-tdep.c \
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i386nbsd-nat.c i386nbsd-tdep.c i386obsd-nat.c i386obsd-tdep.c \
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i387-tdep.c \
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i386-dicos-tdep.c \
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i386-linux-tdep.c i386-nat.c \
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i386-sol2-nat.c i386-sol2-tdep.c \
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i386gnu-nat.c i386gnu-tdep.c \
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@ -2235,6 +2237,8 @@ i386bsd-tdep.o: i386bsd-tdep.c $(defs_h) $(arch_utils_h) $(frame_h) \
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i386-cygwin-tdep.o: i386-cygwin-tdep.c $(defs_h) $(osabi_h) $(gdb_string_h) \
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$(i386_tdep_h) $(regset_h) $(gdb_obstack_h) $(xml_support_h) \
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$(gdbcore_h) $(solib_h) $(solib_target_h) $(i386_cygwin_tdep_h)
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i386-dicos-tdep.o: i386-dicos-tdep.c $(defs_h) $(osabi_h) $(gdb_string_h) \
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$(solib_h) $(solib_target_h)
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i386fbsd-nat.o: i386fbsd-nat.c $(defs_h) $(inferior_h) $(regcache_h) \
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$(target_h) $(fbsd_nat_h) $(i386_tdep_h) $(i386bsd_nat_h) \
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$(bsd_kvm_h)
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@ -145,6 +145,12 @@ hppa*-*-*)
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gdb_target_obs="hppa-tdep.o"
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;;
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i[34567]86-*-dicos*)
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# Target: DICOS/i386
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gdb_target_obs="i386-tdep.o i387-tdep.o \
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i386-dicos-tdep.o \
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corelow.o solib.o solib-target.o"
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;;
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i[34567]86-*-freebsd* | i[34567]86-*-kfreebsd*-gnu)
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# Target: FreeBSD/i386
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gdb_target_obs="i386-tdep.o i387-tdep.o i386bsd-tdep.o i386fbsd-tdep.o \
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@ -491,6 +497,12 @@ vax-*-*)
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gdb_target_obs="vax-tdep.o"
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;;
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x86_64-*-dicos*)
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# Target: DICOS/x86-64
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gdb_target_obs="amd64-tdep.o i386-tdep.o i387-tdep.o \
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i386-dicos-tdep.o \
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corelow.o solib.o solib-target.o"
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;;
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x86_64-*-linux*)
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# Target: GNU/Linux x86-64
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gdb_target_obs="amd64-tdep.o amd64-linux-tdep.o i386-tdep.o \
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@ -542,4 +554,5 @@ m68*-*-openbsd* | m88*-*-openbsd* | vax-*-openbsd*) ;;
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*-*-mingw32ce*) gdb_osabi=GDB_OSABI_WINCE ;;
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*-*-mingw* | *-*-cygwin*)
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gdb_osabi=GDB_OSABI_CYGWIN ;;
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*-*-dicos*) gdb_osabi=GDB_OSABI_DICOS ;;
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esac
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@ -924,6 +924,7 @@ enum gdb_osabi
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GDB_OSABI_CYGWIN,
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GDB_OSABI_AIX,
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GDB_OSABI_DICOS,
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GDB_OSABI_INVALID /* keep this last */
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};
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115
gdb/i386-dicos-tdep.c
Normal file
115
gdb/i386-dicos-tdep.c
Normal file
@ -0,0 +1,115 @@
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/* Target-dependent code for DICOS running on i386's, for GDB.
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Copyright (C) 2008 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "osabi.h"
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#include "gdb_string.h"
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#include "solib.h"
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#include "solib-target.h"
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static void
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i386_dicos_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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{
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struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
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set_solib_ops (gdbarch, &solib_target_so_ops);
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}
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/* Look in the elf symbol table of ABFD for a symbol named WANTED.
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Return true if found. */
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static int
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i386_dicos_bfd_has_symbol_p (bfd *abfd, const char *wanted)
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{
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long storage_needed;
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int ret = 0;
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asymbol **symbol_table = NULL;
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storage_needed = bfd_get_symtab_upper_bound (abfd);
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if (storage_needed < 0)
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{
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warning (_("Can't read elf symbols from %s: %s"), bfd_get_filename (abfd),
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bfd_errmsg (bfd_get_error ()));
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return 0;
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}
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if (storage_needed > 0)
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{
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long i, symcount;
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symbol_table = xmalloc (storage_needed);
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symcount = bfd_canonicalize_symtab (abfd, symbol_table);
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if (symcount < 0)
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warning (_("Can't read elf symbols from %s: %s"),
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bfd_get_filename (abfd),
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bfd_errmsg (bfd_get_error ()));
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else
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{
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for (i = 0; i < symcount; i++)
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{
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asymbol *sym = symbol_table[i];
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if (sym->name != NULL
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&& wanted[0] == sym->name[0]
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&& strcmp (wanted + 1, sym->name + 1) == 0)
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{
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ret = 1;
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break;
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}
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}
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}
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}
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xfree (symbol_table);
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return ret;
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}
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static enum gdb_osabi
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i386_dicos_osabi_sniffer (bfd *abfd)
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{
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char *target_name = bfd_get_target (abfd);
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/* DICOS debug info files don't have a .note.ABI-tag marker or
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something similar. We do know there's always a "header" section
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of 36 bytes, and there's always a "Dicos_loadModuleInfo" symbol
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defined. Look for the section first, as that should be
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cheaper. */
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if (strcmp (target_name, "elf32-i386") == 0)
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{
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asection *section = bfd_get_section_by_name (abfd, "header");
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if (section
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&& bfd_section_size (abfd, section) == 36
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&& i386_dicos_bfd_has_symbol_p (abfd, "Dicos_loadModuleInfo"))
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return GDB_OSABI_DICOS;
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}
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return GDB_OSABI_UNKNOWN;
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}
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/* Provide a prototype to silence -Wmissing-prototypes. */
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void _initialize_i386_dicos_tdep (void);
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void
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_initialize_i386_dicos_tdep (void)
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{
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gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour,
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i386_dicos_osabi_sniffer);
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gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_DICOS,
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i386_dicos_init_abi);
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}
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@ -72,6 +72,7 @@ static const char * const gdb_osabi_names[] =
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"Cygwin",
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"AIX",
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"DICOS",
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"<invalid>"
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};
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