* i386-linux-tdep.c (i386_linux_dwarf_signal_frame_p): New.
(i386_linux_init_abi): Call dwarf2_frame_set_signal_frame_p.
* inf-ptrace.c (inf_ptrace_attach): Call
observer_notify_inferior_created.
* inftarg.c (child_attach): Likewise.
* symfile-mem.c: Include "observer.h", "auxv.h", and "elf/common.h".
(symbol_file_add_from_memory): Take NAME argument. Use it for
the new BFD's filename.
(add_symbol_file_from_memory_command): Update call to
symbol_file_add_from_memory.
(struct symbol_file_add_from_memory_args, add_vsyscall_page)
(symbol_file_add_from_memory_wrapper): New.
(_initialize_symfile_mem): Register add_vsyscall_page as an
inferior_created observer.
* ada-exp.y, ada-lex.l: Use xmalloc and xrealloc through out.
* inf-ptrace.c: Include "gdb_wait.h" instead of <wait.h>.
* Makefile.in (.y.c, .l.c): Don't replace xmalloc with xxmalloc.
Update dependencies.
* target.c (xfer_using_stratum): Change return type to LONGEST.
On each iteration offset, readbuf and writebuf.
* inf-ptrace.c (inf_ptrace_xfer_partial): Simplify computation of
partial_length, and read/modify/write predicate, update comments.
Pass buffer.word to ptrace write.
* inf-ptrace.c (inf_ptrace_target): Do not set to_xfer_memory.
(inf_ptrace_xfer_memory): Delete.
* target.c (target_xfer_partial_p, xfer_using_stratum): New.
(target_read_memory, target_write_memory): Use xfer_using_stratum
when target_xfer_partial_p.
(debug_target): Move to start of file.
(target_read_memory_partial, target_write_memory_partial): Use
to_xfer_partial when target_xfer_partial_p.
* inf-ptrace.c (inf_ptrace_xfer_partial): Replace call to
inf_ptrace_xfer_memory with equivalent code.
* inftarg.c (child_xfer_partial): When performing a write, pass
writebuf to child_xfer_memory.
* inf-child.c: Include "gdb_string.h".
(inf_child_core_file_to_sym_file): Delete.
(inf_child_target): Set to_fetch_registers and to_store_registers.
* inf-ptrace.c: Include "gdb_string.h".
* Makefile.in: Update all dependencies.
