http://sourceware.org/ml/gdb-patches/2013-07/msg00777.html
gdb/ChangeLog
* remote-mips.c (mips_error): Replace use of
deprecated_throw_reason with throw_verror. Use the error message
passed to mips_error as the error message for throw_verror.
* tracepoint.c (trace_dump_command): Select the current frame.
gdb/testsuite/
* gdb.trace/backtrace.exp (gdb_backtrace_tdp_4): Test command
'tdump' on stack frame 0 and 1 respectively.
* gdb.trace/backtrace.exp: Don't invoke 'get_exit' and
'gdb_start'.
Invoke 'prepare_for_testing' instead of 'gdb_compile'.
Use gdb_test_no_output to issue commands 'tstart' and 'tstop'.
http://sourceware.org/ml/gdb-patches/2013-07/msg00317.html
gdb/ChangeLog
* value.c (value_fetch_lazy): Mark optimized out values as such
rather than raising an error.
gdb/testsuite/ChangeLog
* gdb.dwarf2/pieces-optimized-out.exp: Expect "<optimized out>"
when printing an optimized out value. Expect an error when using
an optimized out value in an expression.
http://sourceware.org/ml/gdb-patches/2013-07/msg00316.html
gdb/ChangeLog
* value.c (value_fetch_lazy): Ensure parent value is not lazy
before checking which bits of the parent, not the child, value are
valid.
gdb/testsuite/ChangeLog
* gdb.dwarf2/pieces-optimized-out.exp: New file.
* gdb.dwarf2/pieces-optimized-out.c: New file.
* gdb.dwarf2/pieces-optimized-out.S: New file.
PR gdb/15715
* top.c: Include "filenames.h".
(set_history_filename): New function.
(init_main): Install it as set hook of the "set history filename"
command.
2013-07-30 Muhammad Bilal <mbilal@codesourcery.com>
PR gdb/15715
* gdb.base/setshow.exp: Test that relative paths passed to
'set history filename' are converted to absolute paths.
* ld-vax-elf/export-class-call.rd: New test.
* ld-vax-elf/export-class-call.xd: New test.
* ld-vax-elf/export-class-data.dd: New test.
* ld-vax-elf/export-class-data.rd: New test.
* ld-vax-elf/export-class-data.xd: New test.
* ld-vax-elf/export-class.ld: New test linker script.
* ld-vax-elf/export-class-call.s: New test source.
* ld-vax-elf/export-class-data.s: New test source.
* ld-vax-elf/export-class-def.s: New test source.
* ld-vax-elf/vax-elf.exp: Run the new tests.
* ld-vax-elf/vax-export-class.rd: New test.
* ld-vax-elf/vax-export-class.xd: New test.
* ld-vax-elf/export-class.exp: New test script.
* elf32-vax.c (elf_vax_check_relocs) <R_VAX_GOT32, R_VAX_PLT32>:
Don't check symbol visibility here. Remove a check already
asserted for.
(elf_vax_instantiate_got_entries): Use SYMBOL_REFERENCES_LOCAL
instead of individual checks.
(elf_vax_relocate_section) <R_VAX_GOT32, R_VAX_PLT32>: Only
check the offset to decide if produce a GOT or PLT entry.
Remove redundant assertions. Remove code to produce GOT entries
for local symbols. Remove a duplicate comment and add a comment
on GOT relocations.
(elf_vax_finish_dynamic_symbol): Remove code to produce RELATIVE
dynamic relocs.
ld/testsuite/
* ld-vax-elf/got-local-exe.xd: New test.
* ld-vax-elf/got-local-lib.xd: New test.
* ld-vax-elf/got-local-aux.s: New test source.
* ld-vax-elf/got-local-def.s: New test source.
* ld-vax-elf/got-local-ref.s: New test source.
* ld-vax-elf/vax-elf.exp: Run the new tests.
(elf_vax_always_size_sections): Likewise.
(elf_vax_size_dynamic_sections): Remove code moved to
elf_vax_always_size_sections. Make comment on
elf_vax_instantiate_got_entries match reality.
(elf_vax_instantiate_got_entries): Assert that rather than check
if dynobj is null. Don't check for dynamic_sections_created.
Make function description match reality.
(elf_backend_always_size_sections): New macro.
* Makefile.in (SFILES): Add common/mips-linux-watch.c.
(mips-linux-watch.o): New rule.
(mips_linux_watch_h): New variable.
* configure.srv <mips*-*-linux*>: Add mips-linux-watch.o to
srv_tgtobj.
* linux-mips-low.c: Include mips-linux-watch.h.
(struct arch_process_info, struct arch_lwp_info): New.
(update_watch_registers_callback): New function.
(mips_linux_new_process, mips_linux_new_thread) New functions.
(mips_linux_prepare_to_resume, mips_insert_point): New
functions.
(mips_remove_point, mips_stopped_by_watchpoint): New
functions.
(rsp_bp_type_to_target_hw_bp_type): New function.
(mips_stopped_data_address): New function.
(the_low_target): Add watchpoint support functions.
gdb/
* NEWS: Mention that GDBserver now supports hardware
watchpoints on the MIPS GNU/Linux target.
* mips-linux-nat.c (get_irw_mask): Rename to ...
(mips_linux_watch_get_irw_mask): ... this. Rename parameter
'set' to 'n'. Update function comment. All callers changed.
(get_reg_mask): Rename parameter 'set' to 'n'. Update
function comment. All callers changed.
(get_num_valid): Rename to ...
(mips_linux_watch_get_num_valid): ... this. Rename parameter
'set' to 'n'. Update function comment. All callers changed.
(get_watchlo): Rename to ...
(mips_linux_watch_get_watchlo): ... this. Rename parameter
'set' to 'n'. Update function comment. All callers changed.
(set_watchlo): Rename to ...
(mips_linux_watch_set_watchlo): ... this. Rename parameter
'set' to 'n'. Update function comment. All callers changed.
(get_watchhi): Rename to ...
(mips_linux_watch_get_watchhi): ... this. Update function
comment. All callers changed.
(set_watchhi): Rename to ...
(mips_linux_watch_set_watchhi): ... this. Update function
comment. All callers changed.
(mips_linux_read_watch_registers): Update function comment.
Add new parameters 'lwpid', 'watch_readback', and
'watch_readback_valid'. Update.
(type_to_irw): Rename to ...
(mips_linux_watch_type_to_irw): ... this. Update function
comment. All callers changed.
(fill_mask): Update function comment.
(try_one_watch): Rename to ...
(mips_linux_watch_try_one_watch): ... this. Change the type
of parameter 'irw' from 'unsigned' to 'uint32_t'.
(populate_regs_from_watches): Rename to ...
(mips_linux_watch_populate_regs): ... this. Add parameter
'current_watches'. All callers changed.
of f77.
Allow for compiler variations of integer types.
Use mi_create_varobj.
Use mi_list_varobj_children for the immediate children of `array'.
Add "has_more" attribute for grandchildren test.
When GDB is run with IO redirected to a pipe, the 'interrupt' command
causes it to kill its own process group instead of the inferior's.
The problem manifests itself in async mode, native debugging:
$ cat | gdb <file>
(gdb) set target-async on
(gdb) run &
(gdb) interrupt
A debugging session is active.
Inferior 1 [process 20584] will be killed.
Quit anyway? (y or n) [answered Y; input not from terminal]
In this case, GDB tells that its stdin isn't a tty and doesn't save
the inferior's process group in
inflow.c:terminal_init_inferior_with_pgrp. The 'interrupt' command
tries to 'kill' the inferior's process group in
`inf-ptrace.c:inf_ptrace_stop`, but since that wasn't saved in the
first place, GDB kills process group 0, meaning, its own process
group.
When GDB is used from a frontend, that means killing its own process
group including the frontend and possibly the X session. This was
originally seen with SublimeGDB:
https://github.com/quarnster/SublimeGDB/issues/29.
The patch makes GDB save the inferior pgid regardless of having a
terminal, as pgid is used not only to reset foreground process group,
but also to interrupt the inferior process. It also adds a regression
test. Luckily, we can emulate not having a terminal with "set
interactive-mode off", avoiding the need of special magic to spawn gdb
with a pipe.
Tested on x86_64 Fedora 17.
gdb/
2013-07-26 Cyril Nikolaev <cyril@nichtverstehen.de>
* inflow.c (terminal_init_inferior_with_pgrp): Save inferior
process group regardless of having tty on stdin.
gdb/testsuite/
2013-07-26 Pedro Alves <palves@redhat.com>
* gdb.base/interrupt-noterm.c, gdb.base/interrupt-noterm.exp: New
files.
This patch fixes the target double-close problem (PR remote/15266),
and in the process removes pop_target entire (PR remote/15256).
The first issue is that pop_target calls target_close. However, it
then calls unpush_target, which also calls target_close. This means
targets must be able to be closed twice. Not only is this strange,
but it also directly contradicts the contract of to_xclose targets.
(We currently have just a single such target, and it is never pushed;
but I plan to add more, and so this latent bug is triggered.)
The second issue is that it seems to me that calling pop_target is
often unsafe. This is what cropped up in 15256, where the remote
target assumed that it could pop_target -- but there was another
target higher on the stack, leading to confusion.
But, it is always just as easy to call unpush_target as it is to call
pop_target; and it is also safer. So, removing pop_target seemed like
an improvement.
Finally, this adds an assertion to target_close to ensure that no
currently-pushed target can be closed.
Built and regtested on x86-64 Fedora 18; both natively and using the
native-gdbserver board file.
PR remote/15256, PR remote/15266:
* bfd-target.c (target_bfd_reopen): Initialize to_magic.
* monitor.c (monitor_detach): Use unpush_target.
* remote-m32r-sdi.c (m32r_detach): Use unpush_target.
* remote-mips.c (mips_detach): Use unpush_target. Don't
call mips_close.
* remote-sim.c (gdbsim_detach): Use unpush_target.
* target.c (pop_target): Remove.
(pop_all_targets_above): Don't call target_close.
(target_close): Assert that the target is unpushed.
* target.h (pop_target): Don't declare.
* tracepoint.c (tfile_open): Use unpush_target.
