Reimplement shared library support on ppc-aix...

... using the target_so_ops framework.

gdb/ChangeLog:

        * target.h (TARGET_OBJECT_AIX_LIBRARIES): New target_object enum.
        * features/library-list-aix.dtd: New file.
        * solib-aix.h, solib-aix.c: New file.
        * rs6000-aix-tdep.c: #include "solib.h" and "solib-aix.h".
        (rs6000_find_toc_address_hook): Delete.
        (rs6000_push_dummy_call): Rewrite code setting the TOC value.
        (rs6000_aix_init_osabi): Register solib_aix_so_ops.
        * rs6000-nat.c: Remove "xcoffsolib.h" include.  Include
        "xml-utils.h".
        (map_vmap, vmap_exec, vmap_ldinfo, add_vmap, objfile_symbol_add)
        (vmap_symtab, fixup_breakpoints): Delete.
        (rs6000_xfer_shared_libraries): New function.
        (rs6000_xfer_partial): Add TARGET_OBJECT_AIX_LIBRARIES handling.
        (vmap_secs, bss_data_overlap, vmap_add_symbols): Delete.
        (xcoff_relocate_symtab, xcoff_relocate_core): Delete.
        (rs6000_ptrace_ldinfo, rs6000_core_ldinfo)
        (rs6000_xfer_shared_library): New function.
        (find_toc_address): Delete.
        (_initialize_rs6000_nat): Do not set rs6000_find_toc_address_hook.
        * rs6000-tdep.h (rs6000_find_toc_address_hook): Remove.
        * xcoffread.c (record_minimal_symbol): Reloate symbol address
        before creating minimal symbol.  Adjust function description
        accordingly.
        (scan_xcoff_symtab): Replace call to
        prim_record_minimal_symbol_and_info by call to
        record_minimal_symbol.
        (xcoff_symfile_offsets): Reimplement mostly as a wrapper
        around default_symfile_offsets.
        * configure.tgt: Add solib-aix.o to gdb_target_obs for
        powerpc-aix targets.
        * config/rs6000/nm-rs6000.h: Delete.
        * config/powerpc/aix.mh (NAT_FILE): Delete.
        (NATDEPFILES): Remove xcoffsolib.o.
        * Makefile.in (XMLFILES): Add library-list-aix.dtd.
        (ALL_TARGET_OBS): Add solib-aix.o.
        (HFILES_NO_SRCDIR): Remove xcoffsolib.h and
        config/rs6000/nm-rs6000.h.  Add solib-aix.h.
        (ALLDEPFILES): Add solib-aix.c.  Remove xcoffsolib.c.
        * xcoffsolib.h, xcoffsolib.c: Delete.

        * solib.c (reload_shared_libraries): Remove reference to
        SOLIB_CREATE_INFERIOR_HOOK.
        * breakpoint.c (handle_solib_event): Remove reference to SOLIB_ADD.
        (disable_breakpoints_in_shlibs): Remove reference to PC_SOLIB.
        (momentary_bkpt_re_set): Replace SOLIB_ADD by solib_add in
        comment.
        * corelow.c (deprecated_core_resize_section_table): Delete.
        * exec.c: Remove include of xcoffsolib.h".
        (map_vmap, vmap): Delete.
        (exec_close_1): Remove references to vmap.
        (exec_file_attach): Remove vmap handling code, and reference
        to DEPRECATED_IBM6000_TARGET.
        (bfdsec_to_vmap): Delete.
        (exec_files_info): Remove block of code handling VMAP.
        * infcmd.c (post_create_inferior): Remove reference to
        SOLIB_CREATE_INFERIOR_HOOK and SOLIB_ADD.
        * infrun.c (follow_exec): Remove reference to
        SOLIB_CREATE_INFERIOR_HOOK.
        * stack.c (print_frame): Remove reference to PC_SOLIB.
        * solib-dsbt.c (dsbt_current_sos): Adjust comment.
        (dsbt_relocate_main_executable): Likewise.
        * solib-frv.c (frv_current_sos): Likewise.

gdb/doc/ChangeLog:

        * gdbint.texinfo (Algorithms): Remove entries documenting
        DEPRECATED_IBM6000_TARGET, SOLIB_ADD, and
        SOLIB_CREATE_INFERIOR_HOOK.

2 files changed, 1 insertions, 54 deletions

diff --git a/gdb/config/powerpc/aix.mh b/gdb/config/powerpc/aix.mh
index d007fff..141501d 100644
--- a/gdb/config/powerpc/aix.mh
+++ b/gdb/config/powerpc/aix.mh
@@ -1,10 +1,7 @@
 # Host: IBM PowerPC running AIX
 
-NAT_FILE= config/rs6000/nm-rs6000.h
-
 # aix-thread.o is not listed in NATDEPFILES as it is pulled in by configure.
-NATDEPFILES= fork-child.o inf-ptrace.o rs6000-nat.o \
-	     xcoffsolib.o
+NATDEPFILES= fork-child.o inf-ptrace.o rs6000-nat.o
 
 # When compiled with cc, for debugging, this argument should be passed.
 # We have no idea who our current compiler is though, so we skip it.
diff --git a/gdb/config/rs6000/nm-rs6000.h b/gdb/config/rs6000/nm-rs6000.h
deleted file mode 100644
index e631521..0000000
--- a/gdb/config/rs6000/nm-rs6000.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/* IBM RS/6000 native-dependent macros for GDB, the GNU debugger.
-   Copyright (C) 1986-2013 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/>.  */
-
-/* When a child process is just starting, we sneak in and relocate
-   the symbol table (and other stuff) after the dynamic linker has
-   figured out where they go.  */
-
-#define	SOLIB_CREATE_INFERIOR_HOOK(PID)	\
-  do {					\
-    xcoff_relocate_symtab (PID);	\
-  } while (0)
-
-/* When a target process or core-file has been attached, we sneak in
-   and figure out where the shared libraries have got to.  */
-
-#define	SOLIB_ADD(a, b, c, d)	\
-  if (PIDGET (inferior_ptid))	\
-    /* Attach to process.  */  \
-    xcoff_relocate_symtab (PIDGET (inferior_ptid)); \
-  else		\
-    /* Core file.  */ \
-    xcoff_relocate_core (c);
-
-extern void xcoff_relocate_symtab (unsigned int);
-struct target_ops;
-extern void xcoff_relocate_core (struct target_ops *);
-
-/* If ADDR lies in a shared library, return its name.  */
-
-#define	PC_SOLIB(PC)	xcoff_solib_address(PC)
-extern char *xcoff_solib_address (CORE_ADDR);
-
-/* Flag for machine-specific stuff in shared files.  FIXME */
-#define DEPRECATED_IBM6000_TARGET
-