* ld.texinfo (-z relro): Expand description.
(DATA_SEGMENT_ALIGN): Note that -z relro is not effective when
running with system page size larger than commonpagesize.
(DATA_SEGMENT_RELRO_END): Be explicit about the alignment.
Printing a string slice ("&str") in Rust would print until the
terminating \0; but that is incorrect because a slice has a length.
This fixes &str printing, and arranges to preserve the type name when
slicing a slice, so that printing a slice of an "&str" works as well.
This is PR rust/22236.
2017-10-02 Tom Tromey <tom@tromey.com>
PR rust/22236:
* rust-lang.c (rust_val_print_str): New function.
(val_print_struct): Call it.
(rust_subscript): Preserve name of slice type.
2017-10-02 Tom Tromey <tom@tromey.com>
PR rust/22236:
* gdb.rust/simple.rs (main): New variable "fslice".
* gdb.rust/simple.exp: Add slice tests. Update string tests.
Something like "ptype &x[..]" (where "x" was a slice) would crash gdb.
rust_subscript wasn't handling slicing in the EVAL_AVOID_SIDE_EFFECTS
case.
2017-10-02 Tom Tromey <tom@tromey.com>
* rust-lang.c (rust_subscript): Handle slices in
EVAL_AVOID_SIDE_EFFECTS case.
2017-10-02 Tom Tromey <tom@tromey.com>
* gdb.rust/simple.exp: Test ptype of a slice.
rust_slice_type_p was not recognizing &str as a slice type, so indexing
into (or making a slice of) a slice was not working.
2017-10-02 Tom Tromey <tom@tromey.com>
* rust-lang.c (rust_slice_type_p): Recognize &str as a slice type.
2017-10-02 Tom Tromey <tom@tromey.com>
* gdb.rust/simple.exp: Test index of slice.
I noticed that one function in rust-lang.h was not declared using
"extern". In the interested of uniformity, this patch adds it.
Tested by rebuilding.
2017-10-02 Tom Tromey <tom@tromey.com>
* rust-lang.h (rust_slice_type): Add "extern".
G++ 4.8 trips on:
In file included from /opt/gcc-4.8/include/c++/4.8.5/algorithm:62:0,
from ../../src/gdb/ada-lang.c:65:
/opt/gcc-4.8/include/c++/4.8.5/bits/stl_algo.h: In instantiation of ‘_RandomAccessIterator std::__unguarded_partition(_RandomAccessIterator, _RandomAccessIterator, const _Tp&) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<ada_exc_info*, std::vector<ada_exc_info> >; _Tp = ada_exc_info]’:
/opt/gcc-4.8/include/c++/4.8.5/bits/stl_algo.h:2283:70: required from ‘_RandomAccessIterator std::__unguarded_partition_pivot(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<ada_exc_info*, std::vector<ada_exc_info> >]’
/opt/gcc-4.8/include/c++/4.8.5/bits/stl_algo.h:2315:54: required from ‘void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<ada_exc_info*, std::vector<ada_exc_info> >; _Size = long int]’
/opt/gcc-4.8/include/c++/4.8.5/bits/stl_algo.h:5461:36: required from ‘void std::sort(_RAIter, _RAIter) [with _RAIter = __gnu_cxx::__normal_iterator<ada_exc_info*, std::vector<ada_exc_info> >]’
../../src/gdb/ada-lang.c:13153:61: required from here
/opt/gcc-4.8/include/c++/4.8.5/bits/stl_algo.h:2245:19: error: passing ‘const ada_exc_info’ as ‘this’ argument of ‘bool ada_exc_info::operator<(const ada_exc_info&)’ discards qualifiers [-fpermissive]
while (__pivot < *__last)
^
Seems to be a libstdc++ bug meanwhile fixed by:
https://gcc.gnu.org/ml/libstdc++/2012-04/msg00074.
In any case, there's no reason these methods can't be const.
gdb/ChangeLog:
2017-10-02 Tom Tromey <tom@tromey.com>
Pedro Alves <palves@redhat.com>
* ada-lang.h (ada_exc_info::operator<): Make const.
(ada_exc_info::operator==): Make const.
* ada-lang.c (ada_exc_info::operator<, ada_exc_info::operator==):
Make const.
In gdbserver, target descriptions need to be initialized by calling
init_target_desc. Because i386_create_target_description is shared with
GDB, it doesn't do that, the callers must take care of it. These two
platforms currently don't.
I am not able to build them, so I couldn't test.
gdb/gdbserver/ChangeLog:
* lynx-i386-low.c (lynx_i386_arch_setup): Call init_target_desc.
* nto-x86-low.c (nto_x86_arch_setup): Likewise.
opcodes/
* ppc-opc.c (vle_opcodes): Add e_lmvsprw, e_lmvgprw,
e_lmvsrrw, e_lmvcsrrw and e_lmvcsrrw as official mnemonics for
VLE multimple load/store instructions. Old e_ldm* variants are
kept as aliases.
Add missing e_lmvmcsrrw and e_stmvmcsrrw.
gas/
* testsuite/gas/ppc/vle-mult-ld-st-insns.s: New file: Tests the
support for the VLE multiple load/store instructions.
* testsuite/gas/ppc/vle-mult-ld-st-insns.d: New file: Test
driver.
* testsuite/gas/ppc/ppc.exp: Run it.
Like the PR22230 fix, we can allocate a buffer with an extra byte
rather than letting bfd_simple_get_relocated_section_contents malloc
and return a buffer. Much better than allocating another buffer
afterwards.
PR 22047
* dwarf2.c (read_section): Allocate buffer with extra byte for
bfd_simple_get_relocated_section_contents rather than copying
afterwards.
This changes read_memory_robust to return a std::vector, allowing the
removal of free_memory_read_result_vector and associated cleanups.
This patch also changes the functions it touches to be a bit more
robust with regards to deallocation; it's perhaps possible that
read_memory_robust could have leaked in some situations.
This patch is based on my earlier series to remove some MI cleanups.
Regression tested by the buildbot.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* target.c (read_whatever_is_readable): Change type of "result".
Update.
(free_memory_read_result_vector): Remove.
(read_memory_robust): Change return type. Update.
* mi/mi-main.c (mi_cmd_data_read_memory_bytes): Update. Use
bin2hex, std::string.
* target.h (memory_read_result_s): Remove typedef.
(free_memory_read_result_vector): Remove.
(read_memory_robust): Return std::vector.
Change captured_mi_execute_command to use a scoped_restore, removing a
cleanup. The old code copied the current token, but I don't believe
that is necessary.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* mi/mi-main.c (captured_mi_execute_command): Use scope_restore.
Change ada_exceptions_list to return a std::vector and fix up the
users. This allows removing a cleanup in MI.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* mi/mi-cmd-info.c (mi_cmd_info_ada_exceptions): Update.
* ada-lang.h (struct ada_exc_info): Remove typedef. Declare
operator< and operator==.
(ada_exceptions_list): Return a std::vector.
* ada-lang.c (ada_exc_info::operator<): Rename from
compare_ada_exception_info.
(ada_exc_info::operator==): New.
(sort_remove_dups_ada_exceptions_list): Change type of
"exceptions".
(ada_add_standard_exceptions, ada_add_exceptions_from_frame)
(ada_add_global_exceptions): Likewise.
(ada_exceptions_list_1): Return a std::vector.
(ada_exceptions_list): Likewise.
Change a couple of spots in mi-main.c to use std::set. This
simplifies the code and removes some cleanups.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* mi/mi-main.c (struct print_one_inferior_data) <inferiors>: Now a
'std::set *'.
(print_one_inferior): Update.
(free_vector_of_ints): Remove.
(list_available_thread_groups): Change "ids" to std::set.
(mi_cmd_list_thread_groups): Update.
(struct collect_cores_data) <core>: Now a std::set.
(collect_cores): Update.
(unique): Remove.
(print_one_inferior): Update.
Change a couple of spots in mi-main.c to use std::string, and change
one place to use field_fmt. This removes some cleanups.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* mi/mi-main.c (mi_execute_cli_command): Use std::string.
(mi_execute_async_cli_command): Likewise.
(mi_cmd_trace_frame_collected): Use field_fmt.
This changes mi_cmd_data_write_memory_bytes to use gdb::byte_vector,
removing some cleanups.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* mi/mi-main.c (mi_cmd_data_write_memory_bytes): Use
gdb::byte_vector.
There was a leftover cleanup declaration in mi_parse. Remove it.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* mi/mi-parse.c (mi_parse): Remove unused declaration.
This string copy in mi_cmd_disassemble seems not to be needed, so
don't do it.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* mi/mi-cmd-disas.c (mi_cmd_disassemble): Don't copy "oarg".
This removes some cleanups from mi-cmd-var.c. varobj_gen_name now
returns a string, simplifying mi_cmd_var_create. In
mi_cmd_var_delete, a string copy is apparently unnecessary, so it's
simply removed.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* varobj.h (varobj_gen_name): Return std::string.
* varobj.c (varobj_gen_name): Return std::string.
* mi/mi-cmd-var.c (mi_cmd_var_create): Use std::string.
(mi_cmd_var_delete): Don't copy "name".
This changes mi_argv_to_format to return a string, allowing the
removal of some cleanups.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* mi/mi-cmd-break.c (mi_argv_to_format): Return std::string.
(mi_cmd_break_insert_1): Update.
This removes make_cleanup_defer_target_commit_resume in favor of using
scoped_restore.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* target.h (make_scoped_defer_target_commit_resume): Update.
* target.c (make_scoped_defer_target_commit_resume): Rename from
make_cleanup_defer_target_commit_resume. Return a
scoped_restore.
* infrun.c (proceed): Use make_scoped_defer_target_commit_resume.
This removes an unused outer cleanup from symtab.c, and an unused
cleanup declaration as well.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* symtab.c (search_symbols): Remove unused outer cleanup.
(make_source_files_completion_list): Remove unused declaration.
Remove a cleanup from mt-tdep.c, using gdb::byte_vector.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* mt-tdep.c (mt_push_dummy_call): Use gdb::byte_vector.
This removes a cleanup from xstormy16-tdep.c, using gdb::byte_vector.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* xstormy16-tdep.c (xstormy16_push_dummy_call): Use
gdb::byte_vector.
This removes a cleanup from complaints.c by using std::string.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* complaints.c (vcomplaint): Use std::string.
This removes some cleanups from tracepoint.c by using std::string. It
also removes some unused cleanup declarations.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* tracepoint.c (trace_variable_command): Use std::string.
(encode_actions_1): Remove unused declarations.
(create_tsv_from_upload): Use std::string.
This removes some cleanups from cp-support.c, using std::string.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* cp-support.c (gdb_demangle): Use std::string.
This removes some cleanups from stack.c by using std::string or
gdb::unique_xmalloc_ptr. One cleanup remains in this file; I did not
remove it here because it is handled in another patch series that has
yet to be resolved.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* stack.c (parse_frame_specification): Use std::string
(info_frame_command): Use gdb::unique_xmalloc_ptr.
This removes a cleanup from tilegx-tdep.c, by using gdb::byte_vector.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* tilegx-tdep.c (tilegx_push_dummy_call): Use gdb::byte_vector.
This removes a couple of cleanups from utils.c through the use of
std::string.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* utils.c (vfprintf_maybe_filtered): Use std::string.
(vfprintf_unfiltered): Likewise.
This removes a cleanup from display_gdb_prompt by using std::string.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* event-top.c (top_level_prompt): Return std::string.
(display_gdb_prompt): Update.
This adds string_vprintf, a va_list variant of string_printf. This
will be used in later patches.
gdb/ChangeLog
2017-09-29 Tom Tromey <tom@tromey.com>
* unittests/common-utils-selftests.c (format): New function.
(string_vprintf_tests): New function.
(_initialize_common_utils_selftests): Register new tests.
* common/common-utils.c (string_vprintf): New function.
* common/common-utils.h (string_vprintf): Declare.
Same line but different file ought to display file and line.
PR 21978
* objdump.c: Formatting.
(show_line): Reset prev_line when function name changes.
This finally eliminates an old hack left in place when tracepoint RSP
support was migrated from tracepoint.c to remote.c, back in
35b1e5cca0 ("Make tracepoint operations go through target vector.")
over 7 years ago.
Tested on x86_64 GNU/Linux.
gdb/ChangeLog:
2017-09-29 Pedro Alves <palves@redhat.com>
* remote.c (target_buf, target_buf_size): Delete.
(remote_get_noisy_reply): Remove buf_p and sizeof_buf parameters.
Use the connection's packet buffer instead.
All callers adjusted.
(_initialize_remote): Remove references to target_buf and
target_buf_size.
If we had this in place before, then the regression fixed by the
previous commit would have been been visible is all test runs. E.g.:
Running src/gdb/testsuite/gdb.threads/multi-create-ns-info-thr.exp ...
FAIL: gdb.threads/multi-create-ns-info-thr.exp: continue to breakpoint 6
Debugging manually we'd see this:
gdbserver: Cannot get thread handle for LWP 1467: generic error
Instead of:
gdbserver: PID mismatch! Expected 27472, got 27471
which is misleading - gdbserver didn't 27471, that was stale stack
data from previous function invocations.
gdb/gdbserver/ChangeLog:
2017-09-29 Pedro Alves <palves@redhat.com>
* proc-service.c (ps_pdread): Return PS_ERR if reading memory
fails.
Commit 8629910955 ("Add thread_db_notice_clone to gdbserver")
introduced calls into libthread_db without making sure that the
current thread is pointing to a know-stopped thread. This resulted in
sometimes thread_db_notice_clone failing->find_one_thread failing like
this, as seen when running gdb.threads/multi-create-ns-info-thr.exp:
~~~
Thread <6> executing
Thread <7> executing
gdbserver: PID mismatch! Expected 27472, got 27471
gdbserver: Cannot find thread after clone.
Thread <1000> executing
Thread <1001> executing
~~~
Things go south from here and sometimes that ends up resulting in
gdbserver crashing and the test failing.
gdb/gdbserver/ChangeLog:
2017-09-29 Pedro Alves <palves@redhat.com>
* linux-low.c (handle_extended_wait): Pass parent thread instead
of process to thread_db_notice_clone.
* linux-low.h (thread_db_notice_clone): Replace parent process
parameter with parent thread parameter.
* thread-db.c (find_one_thread): Add comment.
(thread_db_notice_clone): Replace parent process parameter with
parent thread parameter. Temporarily switch to the parent thread.
I was looking at Debian bug #874674 again today, and think I might
have spotted the problem. It appears that merge.c tries to cope with
memory allocation failures in some circumstances, but doesn't quite
manage to get everything right. This patch will make ld report memory
allocation failures instead of silently not merging strings.
* merge.c (merge_strings): Return FALSE on malloc failure.
(_bfd_merge_sections): Return failures from record_section and
merge_strings.
