PR tdep/12352
* arm-tdep.c (copy_ldr_str_ldrb_strb): Replace PC with SP in
order to store PC value on stack instead of text section.
2011-02-15 Yao Qi <yao@codesourcery.com>
PR tdep/12352
* gdb.arch/arm-disp-step.S : New test for str instruction.
* gdb.arch/arm-disp-step.exp : Likewise
* rs6000-tdep.c (IS_EFP_PSEUDOREG): Use correct constant for
the EFP register set size.
(efpr_pseudo_register_read): Use regcache_raw_read_part to read
data from the VMX register.
(efpr_pseudo_register_write): Use regcache_raw_write_part to read
and write data from/to the VMX register.
gdb/testsuite/
* gdb.arch/vsx-regs.exp: Add "vector_register1_vr" and
"vector_register2_vr" test strings. Test the extended floating
point registers (F32~F63).
* lib/gdb.exp (skip_vsx_tests): Update compile flags for the
IBM XL C compiler. Make the test program use a register provided
by the compiler for the lxvd2x instruction.
* command.h (enum command_class): New class 'no_set_class', for
"show" commands without a corresponding "set" command.
* value.c (_initialize_values): Use 'no_set_class' for "show values".
* copying.c (_initialize_copying): Ditto for "show copying" and
"show warranty".
* cli/cli-cmds.c (init_cli_cmds): Ditto for "show commands" and
"show version".
* cli/cli-setshow.c (cmd_show_list): Skip "show" commands for
which there is no corresponding "set" command (eg. "show copying").
* memrange.c (compare_mem_ranges): Mention sort order in
describing comment.
(normalize_mem_ranges): Add comment. Fix ra->length calculation.
* tracepoint.c (traceframe_available_memory): Extend comment to
mention what happens to RESULT when the target does not support
the query.
The default language in version scripts is supposed to be C, but no
symbol demangling is performed on the symbols by default. This makes
targets with a symbol prefix to fail with most version scripts out
there. So strip away this prefix by default.
This fixes many tests (real world and ld's testsuite) for Blackfin
targets and doesn't seem to cause regressions for x86_64.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* 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.
* value.h (unpack_bits_as_long): Delete declaration.
(unpack_value_bits_as_long): Declare.
(unpack_value_field_as_long): Declare.
(value_field_bitfield): Declare.
* value.c (unpack_bits_as_long): Rename to...
(unpack_value_bits_as_long_1): ... this. Add embedded_offset and
value parameters. Return the extracted result in a new output
parameter. If the value contents are unavailable, return false,
otherwise return true.
(unpack_value_bits_as_long): New.
(unpack_field_as_long): Rename to...
(unpack_value_field_as_long_1): ... this. Add embedded_offset and
Add embedded_offset and value parameters. Return the extracted
result in a new output parameter. If the value contents are
unavailable, return false, otherwise return true.
(unpack_value_field_as_long): New.
(unpack_field_as_long_1): New.
(unpack_field_as_long): Reimplement as wrapper around
unpack_value_field_as_long_1.
(value_field_bitfield): New function.
* valops.c (value_fetch_lazy): When fetching a bitfield, use
unpack_value_bits_as_long. Mark the value as unavailable, if it
is unavailable.
* jv-valprint.c (java_print_value_fields): Use
value_field_bitfield.
* p-valprint.c (pascal_object_print_value_fields): Use
value_field_bitfield.
* cp-valprint.c (cp_print_value_fields): Use value_field_bitfield.
* target.c (target_read_live_memory): New function.
(memory_xfer_live_readonly_partial): New.
(memory_xfer_partial): If reading from a traceframe, fallback to
reading unavailable read-only memory from read-only regions of
live target memory.
* tracepoint.c (disconnect_tracing): Adjust.
(set_current_traceframe): New, factored out from
set_traceframe_number.
(set_traceframe_number): Reimplement to only change the traceframe
number on the GDB side.
(do_restore_current_traceframe_cleanup): Adjust.
(make_cleanup_restore_traceframe_number): New.
(cur_traceframe_number): New global.
(tfile_open): Set cur_traceframe_number to no traceframe.
(set_tfile_traceframe): New function.
(tfile_trace_find): If looking up a traceframe using any method
other than by number, make sure the current tfile traceframe
matches gdb's current traceframe. Update the current tfile
traceframe if the lookup succeeded.
(tfile_fetch_registers, tfile_xfer_partial)
(tfile_get_trace_state_variable_value): Make sure the remote
traceframe matches gdb's current traceframe.
* remote.c (remote_traceframe_number): New global.
(remote_open_1): Set it to -1.
(set_remote_traceframe): New function.
(remote_fetch_registers, remote_store_registers)
(remote_xfer_memory, remote_xfer_partial)
(remote_get_trace_state_variable_value): Make sure the remote
traceframe matches gdb's current traceframe.
(remote_trace_find): If looking up a traceframe using any method
other than by number, make sure the current remote traceframe
matches gdb's current traceframe. Update the current remote
traceframe if the lookup succeeded.
* infrun.c (fetch_inferior_event): Adjust.
* tracepoint.h (set_current_traceframe): Declare.
(get_traceframe_number, set_traceframe_number): Add describing
comments.
gdb/
* value.h (value_bytes_available): Declare.
(mark_value_bytes_unavailable): Declare.
* value.c (struct range): New struct.
(range_s): New typedef.
(ranges_overlap): New function.
(range_lessthan): New function.
(ranges_contain_p): New function.
(struct value) <unavailable>: New field.
(value_bytes_available): New function.
(mark_value_bytes_unavailable): New function.
(require_not_optimized_out): Constify parameter.
(require_available): New function.
(value_contents_all, value_contents): Require all bytes be
available.
(value_free): Free `unavailable'.
(value_copy): Copy `unavailable'.
* valprint.h (val_print_unavailable): Declare.
* valprint.c (valprint_check_validity): Rename `offset' parameter
to `embedded_offset'. If printing a scalar, check whether the
value chunk is available.
(val_print_unavailable): New.
(val_print_scalar_formatted): Check whether the value is
available.
* python/py-prettyprint.c (apply_val_pretty_printer): Refuse
pretty-printing unavailable values.
The LoopSetup insn is only valid when the reg field is 0-7, so
don't go decoding it incorrectly when reg is 8-15.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The sim keeps track of which allocations are zero-ed internally (via
zalloc) and then calls a helper "zfree" function rather than "free".
But this "zfree" function simply calls "free" itself. Since I can
see no point in this and it is simply useless overhead, punt it.
The only real change is in hw-alloc.c where we remove the zalloc_p
tracking, and sim-utils.c where zfree is delete. The rest of the
changes are a simple `sed` from "zfree" to "free".
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The sim-events code jumps through some hoops to avoid using 64bit math
to manage the current time. One fundamental assumption here is that by
constantly scheduling the sim poll event a short time into the future,
the 64bit difference will always fall into a signed 32bit value. This
does work most of the time, except for when processing the sim poll event
itself.
Normally, sim_events_process() will dequeue the sim poll event, update
the current time (time_from_event) according to the next pending event,
process the sim poll event (which will then requeue the sim poll event),
and then continue on.
The problem here of course is that the current time is updated in that
small window before the sim poll event gets a chance to reschedule itself.
So if the 64bit difference between the current time and the next event
does not fit into the signed 32bit value, time_from_event overflows, and
the internal assert at the end of update_time_from_event() triggers.
Since attempts at tweaking sim_events_process() logic introduced other
subtle bugs (due to tangled assumptions between most pieces of the sim
time keeping code), change the time_from_event to a real 64bit value.
Tests on my system between a 32bit ELF and a 64bit ELF show no practical
difference (it's all lost in the system noise). Basically, I booted a
Linux kernel to userspace and then paniced it; this gave me a constant
sample size of about 18 million insns.
This was noticed when simulating Blackfin Das U-Boot. The simulated core
timer is given the max unsigned timeout value possible on a 32bit processor
(0xffffffff). This timeout value is used directly to schedule a hw event
in the sim future (the IRQ firing). Once the sim poll event is kicked off,
the next pending event is the core timer event which is more than 2^31
ticks in the future, and the sim aborts with:
sim-events.c:435: assertion failed - current_time == sim_events_time (sd)
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The single cycle dual mac ABS insn was incorrectly decoding the mac1
part of the insn.
Once we fix the decode, update the gas tests to have the correct output.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
When assigning to a register half, the mac0 part of the mult insn
was not decoding properly. It would always show a full dreg instead
of the dreg low half.
Once we fix the disassembler, we have to update a few of the gas
tests as their previous expected output was incorrect.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The BYTEOP2M insn was part of the initial Blackfin designs, but never made
it into any actual silicon. So punt support for it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Fix const/volatile qualifiers of C++ types, PR c++/12328.
* c-typeprint.c (c_type_print_args): Update the function comment. New
variable param_type, initialize it. Remove const/volatile qualifiers
for language_cplus and !show_artificial. Use param_type.
gdb/testsuite/
Fix const/volatile qualifiers of C++ types, PR c++/12328.
* gdb.cp/overload-const.exp: New file.
* gdb.cp/overload-const.cc: New file.
* symtab.c (find_pc_sect_line): New variable objfile, initialize it
from S. Iterate S using ALL_OBJFILE_SYMTABS. Verify BV for each S.
* symtab.h (struct symtab) <next>: Comment extension.
