* mips_pro.exp: Accept either "middle -> top -> main" or
"middle -> main" in the backtrace, because gcc can optimize
tail calls to jumps. Remove setup_xfail for the hppa case.
Add a comment with the original warning messages from PR 3016,
which was filed in 1993, to preserve them for posterity.
* solist.h: Declare new function solib_open.
* solib.c (solib_open): New function. Abstracts some of the
code from solib_map_sections, for finding the binary solib file.
(solib_map_sections): Call solib_open.
* solib-svr4.c (enable_break): Call solib_open.
store_inferior_registers): Support older NetBSD/powerpc systems
from before fp reg support was added. Adapt to register number
changes caused when powerpc target was multi-arched.
to automatically dereference a function pointer for printing
if necessary.
(c_val_print): Use print_function_pointer_address when printing
function pointer addresses.
(sources_info): Replace use of no_symtab_msg with the string
itself.
* linespec.c (no_symtab_msg): Remove declaration.
(decode_line_1): Replace uses of no_symtab_msg with the string
itself.
* regcache.c (read_register_bytes): Failing to set register_valid
is not necessarily an error, if the register is a pseudo-register.
Some pseudo-registers are never marked as valid, so that they will
be read anew every time. Determining if a pseudo-register is valid
(or should be marked invalid) may be difficult, whereas just
recomputing it may be cheap.
* config/monitor.exp (gdb_target_cmd): Abstracts some of the
code from gdb_target_monitor, so it can be used independantly
for gdbserver. Also comment out an unnecessary PUTS.
* gdb.base/a2-run.exp: Use gdb_skip_stdio_test.
* gdb.base/corefile.exp: Expect the message "Program is being
debugged already" when we send the "corefile" command, since
the preceeding gdb_load may have connected gdb to a remote target.
* gdb.base/display.exp: Disable hardware watchpoints if new
board info variable "no_hardware_watchpoints" is true.
Replace single-letter commands with more readable ones.
* gdb.base/recurse.exp (recurse_tests): Disable hardware watchpoints
if new board info variable "no_hardware_watchpoints" is true.
* gdb.base/restore.exp (restore_tests): Call gdb_skip_stdio_tests
to see if stdio (printf) testing is possible.
* gdb.base/watchpoint.exp: Disable hardware watchpoints if new
board info variable "no_hardware_watchpoints" is true. Use new
proc "gdb_skip_stdio_tests" to see if printf tests are possible.
step_over_calls.
* infcmd.c (step_over_calls): Change definition.
(step_1): Use new enum values in relation to step_over_calls.
(step_once): Ditto.
(until_next_command): Ditto.
* infrun.c (clear_proceed_status): Ditto.
(handle_inferior_event): Ditto.
* inferior.h (step_stop_if_no_debug): New variable.
* infrun.c (step_stop_if_no_debug): Declare.
(handle_inferior_event): Stop the step command if we entered a function without
line info.
(_initialize_infrun): New command 'set step-mode' to control the step command.
* infcmd.c (step_once): Switch to stepi mode if there is no line info
(and switching is enabled).
