/* Handle PA64 shared libraries for GDB, the GNU Debugger.
- Copyright (C) 2004 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2007, 2008, 2009 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
+ 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,
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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
HP in their infinite stupidity choose not to use standard ELF dynamic
linker interfaces. They also choose not to make their ELF dymamic
#include "gdbcore.h"
#include "target.h"
#include "inferior.h"
+#include "regcache.h"
#include "hppa-tdep.h"
#include "solist.h"
+#include "solib.h"
#include "solib-pa64.h"
#undef SOLIB_PA64_DBG
-/* If we are building for a SOM-only target, then we don't need this. */
-#ifndef PA_SOM_ONLY
+/* We can build this file only when running natively on 64-bit HP/UX.
+ We check for that by checking for the elf_hp.h header file. */
+#if defined(HAVE_ELF_HP_H) && defined(__LP64__)
/* FIXME: kettenis/20041213: These includes should be eliminated. */
#include <dlfcn.h>
This must happen after dld starts running, so we can't do it in
read_dynamic_info. Record the fact that we have loaded the
- descriptor. If the library is archive bound, then return zero, else
- return nonzero. */
+ descriptor. If the library is archive bound or the load map
+ hasn't been setup, then return zero; else return nonzero. */
static int
read_dld_descriptor (void)
error (_("Error while reading in load map pointer."));
}
+ if (!dld_cache.load_map)
+ return 0;
+
/* Read in the dld load module descriptor */
if (dlgetmodinfo (-1,
&dld_cache.dld_desc,
CORE_ADDR dyn_ptr;
char *pbuf;
- pbuf = alloca (TARGET_PTR_BIT / HOST_CHAR_BIT);
+ pbuf = alloca (gdbarch_ptr_bit (current_gdbarch) / HOST_CHAR_BIT);
dyn_tag = bfd_h_get_64 (symfile_objfile->obfd,
(bfd_byte*) &x_dynp->d_tag);
to tell the dynamic linker that a private copy of the library is
needed (so GDB can set breakpoints in the library).
- We need to set two flag bits in this routine.
-
- DT_HP_DEBUG_PRIVATE to indicate that shared libraries should be
- mapped private.
-
- DT_HP_DEBUG_CALLBACK to indicate that we want the dynamic linker to
- call the breakpoint routine for significant events. */
+ We need to set DT_HP_DEBUG_CALLBACK to indicate that we want the
+ dynamic linker to call the breakpoint routine for significant events.
+ We used to set DT_HP_DEBUG_PRIVATE to indicate that shared libraries
+ should be mapped private. However, this flag can be set using
+ "chatr +dbg enable". Not setting DT_HP_DEBUG_PRIVATE allows debugging
+ with shared libraries mapped shareable. */
static void
pa64_solib_create_inferior_hook (void)
if (! read_dynamic_info (shlib_info, &dld_cache))
error (_("Unable to read the .dynamic section."));
+ /* If the libraries were not mapped private, warn the user. */
+ if ((dld_cache.dld_flags & DT_HP_DEBUG_PRIVATE) == 0)
+ warning
+ (_("Private mapping of shared library text was not specified\n"
+ "by the executable; setting a breakpoint in a shared library which\n"
+ "is not privately mapped will not work. See the HP-UX 11i v3 chatr\n"
+ "manpage for methods to privately map shared library text."));
+
/* Turn on the flags we care about. */
- dld_cache.dld_flags |= DT_HP_DEBUG_PRIVATE;
dld_cache.dld_flags |= DT_HP_DEBUG_CALLBACK;
status = target_write_memory (dld_cache.dld_flags_addr,
(char *) &dld_cache.dld_flags,
Also note the breakpoint is the second instruction in the
routine. */
- load_addr = read_pc () - tmp_bfd->start_address;
+ load_addr = regcache_read_pc (get_current_regcache ())
+ - tmp_bfd->start_address;
sym_addr = bfd_lookup_symbol (tmp_bfd, "__dld_break");
sym_addr = load_addr + sym_addr + 4;
if (! read_dld_descriptor ())
return NULL;
- /* If the libraries were not mapped private, warn the user. */
- if ((dld_cache.dld_flags & DT_HP_DEBUG_PRIVATE) == 0)
- warning (_("The shared libraries were not privately mapped; setting a\n"
- "breakpoint in a shared library will not work until you rerun "
- "the program.\n"));
-
for (dll_index = -1; ; dll_index++)
{
struct load_module_desc dll_desc;
char *dll_path;
if (symfile_objfile)
- if (!query ("Attempt to reload symbols from process? "))
+ if (!query (_("Attempt to reload symbols from process? ")))
return 0;
/* Read in the load map pointer if we have not done so already. */
memset (&dld_cache, 0, sizeof (dld_cache));
}
-void pa64_solib_select (struct gdbarch_tdep *tdep)
+void pa64_solib_select (struct gdbarch *gdbarch)
{
- current_target_so_ops = &pa64_so_ops;
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ set_solib_ops (gdbarch, &pa64_so_ops);
tdep->solib_thread_start_addr = pa64_solib_thread_start_addr;
tdep->solib_get_got_by_pc = pa64_solib_get_got_by_pc;
tdep->solib_get_text_base = pa64_solib_get_text_base;
}
-#else /* PA_SOM_ONLY */
+#else /* HAVE_ELF_HP_H */
extern initialize_file_ftype _initialize_pa64_solib; /* -Wmissing-prototypes */
{
}
-void pa64_solib_select (struct gdbarch_tdep *tdep)
+void pa64_solib_select (struct gdbarch *gdbarch)
{
/* For a SOM-only target, there is no pa64 solib support. This is needed
for hppa-hpux-tdep.c to build. */
projects / binutils.git / blobdiff