Tom Tromey <tromey@redhat.com>
* lib/gdb.exp: Add description of test prefixes.
(with_test_prefix): New procedure.
* gdb.arch/altivec-abi.exp: Use with_test_prefix.
* gdb.base/attach-pie-misread.exp: Use with_test_prefix.
* gdb.base/break-interp.exp: Use with_test_prefix. Use append
instead of lappend to append to pf_prefix.
* gdb.base/catch-load.exp: Use with_test_prefix.
* gdb.base/disp-step-syscall.exp: Use with_test_prefix.
* gdb.base/jit-so.exp: Use with_test_prefix.
* gdb.base/jit.exp: Use with_test_prefix.
* gdb.base/return-nodebug.exp (do_test): Use append instead of
lappend to append to pf_prefix.
* gdb.base/sepdebug.exp: Use with_test_prefix.
* gdb.base/solib-display.exp: Use with_test_prefix.
* gdb.base/solib-overlap.exp: Use with_test_prefix.
* gdb.base/watch-cond-infcall.exp: Use with_test_prefix.
* gdb.base/watchpoint.exp: Use with_test_prefix.
* gdb.dwarf2/dw2-noloc.exp: Use with_test_prefix.
* gdb.mi/mi-watch.exp: Use with_test_prefix.
* gdb.mi/mi2-watch.exp: Use with_test_prefix.
* gdb.threads/non-ldr-exc-1.exp: Use with_test_prefix.
* gdb.threads/non-ldr-exc-2.exp: Use with_test_prefix.
* gdb.threads/non-ldr-exc-3.exp: Use with_test_prefix.
* gdb.threads/non-ldr-exc-4.exp: Use with_test_prefix.
* gdb.threads/watchpoint-fork.exp: Use with_test_prefix. Use
append instead of lappend to append to pf_prefix.
* gdb.threads/watchthreads-reorder.exp: Use with_test_prefix.
* gdb.trace/change-loc.exp: Use with_test_prefix.
* gdb.trace/pending.exp: Use with_test_prefix.
* gdb.trace/status-stop.exp: Use with_test_prefix.
* gdb.trace/strace.exp: Use with_test_prefix.
* gdb.trace/trace-break.exp: Use with_test_prefix.
* gdb.trace/unavailable.exp: Use with_test_prefix. Use append
instead of lappend to append to pf_prefix.
* exceptions.c (throw_exception): Don't disable the current
display.
* printcmd.c (disable_current_display_cleanup): New function.
(do_one_display): Install a cleanup to disable the current display
if doing the display throws.
gdb/testsuite/
* gdb.trace/unavailable.exp (test_maybe_regvar_display): New
procedure.
(gdb_collect_args_test, gdb_collect_locals_test): Use it.
* findvar.c (value_of_register): Mark the value as unavailable, if
the register is unavailable.
* frame.h (frame_register_unwind): New `unavailablep' parameter.
(frame_register): New `unavailablep' parameter.
(frame_register_read): Update comment.
* frame.c (frame_register_unwind): New `unavailablep' parameter.
Set it if the register is unavailable. If the register is
unavailable, clear the output buffer.
(frame_register): New `unavailablep' parameter. Pass it down.
(frame_unwind_register): Adjust.
(put_frame_register): Adjust.
(frame_register_read): Adjust. Also return false if the register
is not available.
(frame_register_unwind_location): Adjust.
* sentinel-frame.c (sentinel_frame_prev_register): If the register
is unavailable, mark the value accordingly.
* stack.c (frame_info): Handle unavailable registers.
gdb/testsuite/
* gdb.trace/unavailable.exp (fpreg, spreg, pcreg): Define.
(test_register, test_register_unavailable): New procedures.
(gdb_unavailable_registers_test): New procedure.
(gdb_trace_collection_test): Call it.
* exceptions.h (NOT_AVAILABLE_ERROR): New error.
* value.c: Include "exceptions.h".
(require_available): Throw NOT_AVAILABLE_ERROR instead of a
generic error.
* cp-abi.c: Include gdb_assert.h.
(baseclass_offset): Add `embedded_offset' and `val' parameters.
Assert the method is implemented. Wrap NOT_AVAILABLE_ERROR
errors.
* cp-abi.h (baseclass_offset): Add `embedded_offset' and `val'
parameters. No longer returns -1 on error.
(struct cp_abi_ops) <baseclass_offset>: Add `embedded_offset' and
`val' parameters.
* cp-valprint.c: Include exceptions.h.
(cp_print_value): Handle NOT_AVAILABLE_ERROR errors when fetching
the baseclass_offset. Handle unavailable base classes. Use
val_print_invalid_address.
* p-valprint.c: Include exceptions.h.
(pascal_object_print_value): Handle NOT_AVAILABLE_ERROR errors
when fetching the baseclass_offset. No longer expect
baseclass_offset returning -1. Handle unavailable base classes.
Use val_print_invalid_address.
* valops.c (dynamic_cast_check_1): Rename `contents' parameter to
`valaddr' parameter, and change its type to gdb_byte pointer. Add
`embedded_offset' and `val' parameters. Adjust.
(dynamic_cast_check_2): Rename `contents' parameter to `valaddr'
parameter, and change its type to gdb_byte pointer. Add
`embedded_offset' and `val' parameters. Adjust. No longer expect
baseclass_offset returning -1.
(value_dynamic_cast): Use value_contents_for_printing rather than
value_contents. Adjust.
(search_struct_field): No longer expect baseclass_offset returning
-1.
(search_struct_method): If reading memory from the target is
necessary, wrap it in a new value to pass to baseclass_offset. No
longer expect baseclass_offset returning -1.
(find_method_list): No longer expect baseclass_offset returning
-1. Use value_contents_for_printing rather than value_contents.
* valprint.c (val_print_invalid_address): New function.
* valprint.h (val_print_invalid_address): Declare.
* gdbtypes.c (is_unique_ancestor_worker): New `embedded_offset'
and `val' parameters. No longer expect baseclass_offset returning
-1. Adjust.
* gnu-v2-abi.c: Include "exceptions.h".
(gnuv2_baseclass_offset): Add `embedded_offset' and `val'
parameters. Handle unavailable memory. Recurse through
gnuv2_baseclass_offset directly, rather than through
baseclass_offset. No longer returns -1 on not found, instead
throw an error.
* gnu-v3-abi.c (gnuv3_baseclass_offset): Add `embedded_offset' and
`val' parameters. Adjust.
gdb/testsuite/
* gdb.trace/unavailable.cc (class Base, class Middle, class
Derived): New types.
(derived_unavail, derived_partial, derived_whole): New globals.
(virtual_partial): New global.
(virtualp): Point at virtual_partial.
* gdb.trace/unavailable.exp (gdb_collect_globals_test): Add tests
related to unavailable vptr.
* gdb.trace/unavailable.cc (a, b, c): New globals.
(main): Set and clear them.
* gdb.trace/unavailable.exp (gdb_collect_globals_test): Collect
`a' and `c', and check that `b' isn't collected, although `a' and
`c' are.
gdb/
* tracepoint.c (memrange_sortmerge): Don't merge ranges that are
almost but not quite adjacent.
* gdb.trace/unavailable.cc (struct Virtual): New.
(virtualp): New global pointer.
* gdb.trace/unavailable.exp (gdb_collect_globals_test): Test
printing a pointer to an object whose type has a vtable, with
print object on.
gdb/
* value.h (value_entirely_available): Declare.
* value.c (value_entirely_available): New function.
* c-valprint.c (c_value_print): Don't try fetching the pointer's
real type if the pointer is unavailable.
* valops.c (value_repeat): Use read_value_memory instead of
read_memory.
gdb/testsuite/
* gdb.trace/unavailable.exp (gdb_collect_globals_test): Test that
value repeat handles unavailableness.
* value.h (value_contents_copy, value_contents_copy_raw): Declare.
* value.c (value_contents_copy_raw, value_contents_copy): New
functions.
(value_primitive_field): Use value_contents_copy_raw instead of
memcpy.
* valops.c (value_fetch_lazy): Use value_contents_copy instead of
memcpy.
(value_array, value_slice): Ditto.
* valarith.c (value_subscripted_rvalue): Use
value_contents_copy_raw instead of memcpy.
gdb/testsuite/
* gdb.trace/unavailable.exp (gdb_collect_globals_test): Add new
tests for building arrays from unavailable values, subscripting
non-memory rvalue unvailable arrays, and accessing fields or
baseclasses of non-lazy unavailable values,
* gdb.trace/unavailable.cc (small_struct, small_struct_b): New
struct types.
(g_smallstruct, g_smallstruct_b): New globals.
