* bcache.c (print_bcache_statistics): Avoid divide-by-zero
exception if one or more objfile has no symbols, such as when
a dynamic library has been stripped.
assumption that an int can hold a char *.
* bcache.h (struct hashlink): Wrap data[] inside union with
double to force longest alignment.
(BCACHE_DATA): New macro to access data[].
(BCACHE_ALIGNMENT): New macro to get offset to data[].
* bcache.c (lookup_cache, bcache): Use BCACHE_DATA to get
address of cached data. Use BCACHE_ALIGNMENT to compute
amount of space to allocate for each hashlink struct.
* Makefile.in (SFILES): Add bcache.c.
(symtab_h): Add bcache.h.
(HFILES_NO_SRCDIR): add bcache.h
(COMMON_OBJS): Add bcache.o
(bcache.o): New target.
* dbxread.c (start_psymtab): Make global_syms & static_syms
type "partial_symbol **".
* hpread.c (hpread_start_symtab): Ditto.
* os9kread.c (os9k_start_psymtab): Ditto.
* stabsread.h (start_psymtab): Ditto.
* {symfile.c, symfile.h} (start_psymtab_common): Ditto.
* maint.c (maintenance_print_statistics): Call
print_symbol_bcache_statistics.
* objfiles.c (allocate_objfile): Initialize psymbol bcache malloc
and free pointers.
* solib.c (allocate_rt_common_objfile): Ditto.
* symfile.c (reread_symbols): Ditto.
(free_objfile): Free psymbol bcache when objfile is freed.
(objfile_relocate): Use new indirect psymbol pointers.
* objfiles.h (struct objfile): Add psymbol cache.
* symfile.c (compare_psymbols): Now passed pointers to pointers to
psymbols.
(reread_symbols): Free psymbol bcache when freeing other objfile
resources.
(add_psymbol_to_list, add_psymbol_addr_to_list): Initialize new
psymbol using the psymbol bcache.
(init_psymbol_list): Psymbol lists now contain pointers rather than
the actual psymbols.
* symfile.h (psymbol_allocation_list): Psymbol lists now dynamically
grown arrays of pointers.
(ADD_PSYMBOL_VT_TO_LIST): Initialize new symbol using the psymbol
bcache.
* symmisc.c (print_partial_symbols): Now takes pointer to pointer
to partial symbol.
(print_symbol_bcache_statistics): New function to print per objfile
bcache statistics.
(print_partial_symbol, print_partial_symbols,
maintenance_check_symtabs, extend_psymbol_list):
Account for change to pointer to pointer to partial symbol.
* symtab.c (find_pc_psymbol, lookup_partial_symbol, decode_line_2,
make_symbol_completion_list):
Account for change to pointer to pointer to partial symbol.
* symtab.h (bcache.h): Include.
* xcoffread.c (xcoff_start_psymtab): Make global_syms & static_syms
type "partial_symbol **".
