* infrun.c (handle_command, signals_info), infcmd.c
(signal_command): Use it.
* infrun.c, infcmd.c: Update docstrings for these commands.
* target.h (enum target_signal), target.c (signals), target.c
(target_signal_from_host, target_signal_to_host): Add
TARGET_SIGNAL_REALTIME_* and TARGET_SIGNAL_PRIO for lynx.
* config/tm-lynx.h: Define signal numbers for realtime events.
for Sun acc 3.0 under SunOS4.
Changes to improve handling of runtime common symbols
under SunOS4.
* minsyms.c (get_symbol_leading_char): New routine to determine
the leading symbol character for an objfile.
(prim_record_minimal_symbol_and_info, install_minimal_symbols):
Use it.
* objfiles.h (rt_common_objfile): New global, points to objfile
containing the runtime common minimal symbols.
* objfiles.c (free_objfile): Mark rt_common_objfile as
unallocated before freeing it.
* solib.c (allocate_rt_common_objfile): New routine to allocate
an objfile for the runtime common minimal symbols.
(solib_add_common_symbols): Allocate an objfile for the runtime
common symbols if necessary and put common symbols into it.
Clean up code and comments.
(solib_add, special_symbol_handling): Cleanup comments regarding
runtime common symbols.
* stabsread.c (scan_file_globals_1): New routine, contains
old scan_file_globals code. Checks if there are any unresolved
global symbols before starting the expensive minimal symbol table
search.
(scan_file_globals): Now calls scan_file_globals_1 for the passed
objfile and eventually for the runtime common objfile. Complains
about any unresolved global symbols and removes them from the
global symbol chain to avoid dangling pointers into the symbol
table if the symbol table is reread.
* core.c (dis_asm_read_memory): Add call to
dis_asm_read_memory_hook to provide alternate way for disassembler
to read memory.
* defs.h: Protect from multiple inclusion. Add decl for
dis_asm_read_memory_hook.
* gdbtk.c (finish_saving_output): Don't do anything if not saving
output.
* (breakpoint_notify): Don't send null filename to tcl.
* (gdb_eval): New tcl command to eval an expression.
* (gdb_disassemble): New tcl command to do disassembly. This
allows tcl code to choose between exec file and target memeory,
and can also do mixed source and assembly.
* (gdbtk_init): Move reading of gdbtk.tcl to the end to make sure
that more of the environment is set up. Also, create link between
gdb and tcl vars disassemble{-_}from{-_}exec.
* gdbtk.tcl: New expression window support.
* Make assembly window be 80 columns wide.
* Use new disassembly method. Add menu items to select
disassembly from exec file or target.
* Change View menubar item to Options.
* Get rid of Stack, Breakpoints, Signals, and Variables Windows,
since they don't exist yet.
* Pop up a copyright window on startup.
* top.c: Make window startup be the default.
* Add dis_asm_read_memory_hook.
(tuple): Parse simple unlabelled tuples.
* eval.c (evaluate_subexp case OP_ARRAY): Use expect_type to
evaluate brace-initializer-expressions depending on context.
(evaluate_subexp case UNOP_CAST): Pass the target type as
expected type when evaluating the expression.
BOOL from TYPE_NAME.
* ch-valprint.c (chill_print_type_scalar): New function, to handle
TYPE_CODE_RANGE better than print_type_scalar does.
(chill_val_print_array_elements): Use above new function.
