x86_64/Cygwin is only mentioned as a new target, but we gained support
for building a native x86_64/Cygwin debugger too.
gdb/
2013-04-03 Pedro Alves <palves@redhat.com>
* NEWS: Mention x86_64/Cygwin as new native configuration.
(bfd_elf32_bfd_is_target_special_symbol): Define.
* v850.h (V850_INVERSE_PCREL): Define.
* v850-dis.c (print_value): With V850_INVERSE_PCREL compute the
destination address by subtracting the operand from the current
address.
* v850-opc.c (insert_u16_loop): Disallow negative offsets. Store
a positive value in the insn.
(extract_u16_loop): Do not negate the returned value.
(D16_LOOP): Add V850_INVERSE_PCREL flag.
(ceilf.sw): Remove duplicate entry.
(cvtf.hs): New entry.
(cvtf.sh): Likewise.
(fmaf.s): Likewise.
(fmsf.s): Likewise.
(fnmaf.s): Likewise.
(fnmsf.s): Likewise.
(maddf.s): Restrict to E3V5 architectures.
(msubf.s): Likewise.
(nmaddf.s): Likewise.
(nmsubf.s): Likewise.
* ld-plugin/lto.exp (PR ld/12942 (3)): Remove file name and
line number from regexp.
(PR ld/15146 (2)): Similarly.
* ld-plugin/pr12942a.cc (main): Use __builtin_abort.
I hacked "apropos" to dump the whole set of commands (just make it
accept the entry string as regex), and then diffed the output of 7.5
vs 7.6, --enable-targets=all builds. That allowed then checking
whether some commands had not been mentioned in NEWS or the manual.
These are what I found missing. We've been a bit negligent in
requiring documentation bits for debug commands.
gdb/
2013-04-02 Pedro Alves <palves@redhat.com>
* NEWS: Mention "set/show debug aarch64", "set/show debug
coff-pe-read" and "set/show debug mach-o".
gdb/doc/
2013-04-02 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Debugging Output): Document "set/show debug
aarch64", "set/show debug coff-pe-read" and "set/show debug
mach-o".
The "New commands" section reads:
"New commands (for set/show, see "New options" below)"
gdb/
2013-04-02 Pedro Alves <palves@redhat.com>
* NEWS: Move "set debug notification" and "set trace-buffer-size"
under "New options".
PR gdb/15275 notes that when debugging with a remote connection over a
serial link and the link is disconnected, say by disconnecting USB
serial port, the GDB quit command no longer works:
(gdb)
tar ext /dev/ttyACM0
&"tar ext /dev/ttyACM0\n"
~"Remote debugging using /dev/ttyACM0\n"
^done
(gdb)
set debug remote 1
&"set debug remote 1\n"
^done
(gdb)
quit
&"quit\n"
&"Sending packet: $qTStatus#49..."
&"putpkt: write failed: Input/output error.\n"
^error,msg="putpkt: write failed: Input/output error."
(gdb)
(gdb)
quit
&"quit\n"
&"Sending packet: $qTStatus#49..."
&"putpkt: write failed: Input/output error.\n"
^error,msg="putpkt: write failed: Input/output error."
This is not reproducible with TCP connections, as with that, sending
doesn't error out, but instead the error is detected on the subsequent
readchar. When that read fails, we unpush the remote target, and
throw TARGET_CLOSE_ERROR. To address PR gdb/15275, instead of
catching the error in remote_get_trace_status as presently done (which
leaves this same issue latent for another packet to trip on), or of
making ser-unix.c fake success too on failed writes, so we'd get to
readchar detecting the error on serial ports too, better let the error
propagate out of serial_write, and catch it at the remote.c level,
throwing away the target if writing fails too, instead of delaying
that until the next read.
gdb/
2013-04-02 Pedro Alves <palves@redhat.com>
PR gdb/15275
* remote.c (send_interrupt_sequence): Use remote_serial_write.
(remote_serial_write): New function.
(putpkt_binary, getpkt_or_notif_sane_1): Use remote_serial_write.
type_unit_group ...
(struct signatured_type): ... to here.
(sig_type_ptr): New typedef.
(type_unit_group): Delete member 't.first_cu'. Move member 'tus'
out of union 't'. All uses updated.
(dw2_get_file_names_reader): Assert not called for a type unit.
(dw2_get_file_names): Assert not called for a type unit or type
unit group.
(build_type_psymtabs_reader): Assert called for a type unit.
(build_type_psymtab_dependencies): Assert called for a type unit group.
These sims have optional support for the dv-sockser model, so do not make
them hard failures. The Makefile made it seem like they didn't actually
support things dynamically, but a further code dive into the source and
the Makefile shows that things work out.
* archive.cc (Archive::get_elf_object_for_member): Create the elf
object before calling the plugin claim_file handler. Pass the elf
object of the archive to the plugin. Delete the elf object if the
plugin claims the file.
bfd/
PR ld/15323
* elf32-i386.c (elf_i386_check_relocs): Set non_ir_ref if a
symbol is referenced by a non-shared object.
* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.
ld/testsuite/
PR ld/15323
* ld-plugin/lto.exp (lto_link_tests): Add pr15323a-r.o.
(lto_run_tests): Add a test for PR ld/15323.
* ld-plugin/pr15323.out: New file.
* ld-plugin/pr15323a.c: Likewise.
* ld-plugin/pr15323b.c: Likewise.
Delete arg is_dwp. All callers updated.
(open_dwp_file): New function.
(open_and_init_dwp_file): Call it.
(get_dwp_file): New function.
(lookup_dwo_cutu): Call it.
2013-03-29 Yao Qi <yao@codesourcery.com>
* corelow.c: Include "completer.h".
(_initialize_corelow): Call add_target_with_completer with
argument 'filename_completer'.
* tracepoint.c: Likewise.
* exec.c (_initialize_exec): Likewise.
* target.c (add_target): Rename to ...
(add_target_with_completer): ... this. Call set_cmd_completer
if parameter completer is not NULL.
(add_target): New.
* target.h: Include "command.h".
(add_target_with_completer): Declare it.
gdb/testsuite:
2013-03-29 Yao Qi <yao@codesourcery.com>
* gdb.base/completion.exp: Test completion of commands
"target core", "target tfile" and "target exec".
* gdb.trace/tfile.exp: Test completion of command
"target tfile".
The debugger sometimes prints strange function names for given
addresses. For instance, with the following source code...
4 procedure Foo is
5 A : Integer;
6 begin
7 Do_Nothing (A'Address);
8 end Foo;
... we can see...
(gdb) info line 5
Line 5 of "foo.adb" starts at address 0x4017ca <_ada_foo+6>
and ends at 0x4017d2 <_fu29__system__scalar_values__is_is4+7>.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
_fu29__system__scalar_values__is_is4 is an artificial symbol
generated by the linker, and interferes with the pc-to-symbol
resolution. There isn't much in the general minimal_symbol
data that could help us identify them, so this patch changes
the COFF reader to simply ignore them.
gdb/ChangeLog:
* coffread.c (is_import_fixup_symbol): New function.
(record_minimal_symbol): Use is_import_fixup_symbol to
detect import fixup symbols, and discard them.
gdb/testsuite/ChangeLog:
* gdb.ada/win_fu_syms: New testcase.
