Hi,
On windows host, we see the following ERROR,
(gdb) PASS: gdb.base/setshow.exp: set history filename ~/foobar.baz
ERROR OCCURED: couldn't compile regular expression pattern: invalid escape \ seq
uence
while executing
"expect -nobrace -i exp13 -timeout 10 -re {.*A problem internal to GDB has been
detected} {
fail "$message (GDB internal error)"
gdb_internal..."
invoked from within
"expect {
-i exp13 -timeout 10
-re ".*A problem internal to GDB has been detected" {
fail "$message (GDB internal error)"
gdb_internal_erro..."
("uplevel" body line 1)
invoked from within
"uplevel $body" REGEXP REG_EESCAPE {invalid escape \ sequence} couldn't compile
regular expression pattern: invalid escape \ sequenceERROR: Process no longer ex
ists
which leads to
UNRESOLVED: gdb.base/setshow.exp: show history filename (~/foobar.baz)
and this error is thrown from this test below:
gdb_test "show history filename" \
"The filename in which to record the command history is \"$HOME/foobar.baz\"..*" \
"show history filename (~/foobar.baz)"
HOME is a windows path, like C:\foo\bar. When it is used in gdb_test to match
output, the error is thrown because backslash is a special character in
regular expression. This patch is to escape backslash to fix this
error by using string_to_regexp.
gdb/testsuite:
2014-04-03 Yao Qi <yao@codesourcery.com>
* gdb.base/setshow.exp: Invoke string_to_regexp to HOME and PWD.
When a VDSO gets large enough that it doesn't entirely fit in one page,
but not so large that the part described by the program header exceeds
one page, then gdb/BFD doesn't read the section headers and symbol
table information. This patch cures that by passing the size of the
vdso to BFD, and fixes a number of other issues in the BFD code.
bfd/
* elfcode.h (bfd_from_remote_memory): Add "size" parameter.
Consolidate code handling possible section headers past end of
segment. Don't use p_align for page size guess, instead use
minpagesize. Take note of ld.so clearing section headers when
p_memsz > p_filesz. Handle file header specifying no section
headers. Handle zero p_align throughout. Default loadbase to
zero. Add comments. Rename contents_size to high_offset, and
make it a bfd_vma. Delete unnecessary bfd_set_error calls.
* bfd-in.h (bfd_elf_bfd_from_remote_memory): Update prototpe.
* elf-bfd.h (struct elf_backend_data <elf_backend_from_remote_memory>):
Likewise.
(_bfd_elf32_bfd_from_remote_memory): Likewise.
(_bfd_elf64_bfd_from_remote_memory): Likewise.
* elf.c (bfd_elf_bfd_from_remote_memory): Adjust.
* bfd-in2.h: Regnerate.
gdb/
* symfile-mem.c (symbol_file_add_from_memory): Add size parameter.
Pass to bfd_elf_bfd_from_remote_memory. Adjust all callers.
(struct symbol_file_add_from_memory_args): Add size field.
(find_vdso_size): New function.
(add_vsyscall_page): Attempt to find vdso size.
it is possible that gdb gets mach exceptions from an unknown inferior. This
happens when an inferior creates a child and that child gets a signal.
So instead of reporting messages with unknown origins, simply reply to these
notifications. The kernel will then post the unix signal.
gdb/
* darwin-nat.c (darwin_encode_reply): Add prototype.
(darwin_decode_exception_message): Reply to unknown inferiors.
(darwin_decode_message): Handle message by id. Ignore message
to unknown inferior.
(darwin_wait): Discard unknown messages, add debug trace.
The current ppc64 single step over atomic sequence testcase is written
in C and breaks with some versions of gcc. Convert the test to
assembly and use stepi to step through it.
gdb/testsuite/
2014-04-01 Anton Blanchard <anton@samba.org>
* gdb.arch/ppc64-atomic-inst.c: Remove.
* gdb.arch/ppc64-atomic-inst.S: New file.
* gdb.arch/ppc64-atomic-inst.exp: Adapt for asm based testcase.
* NEWS: Mention it.
* solib.c (solib_read_symbols): Only print symbol loading messages
if requested.
(solib_add): If symbol loading is in "brief" mode, notify user
symbols are being loaded.
(reload_shared_libraries_1): Ditto.
* symfile.c (print_symbol_loading_off): New static global.
(print_symbol_loading_brief): New static global.
(print_symbol_loading_full): New static global.
(print_symbol_loading_enums): New static global.
(print_symbol_loading): New static global.
(print_symbol_loading_p): New function.
(symbol_file_add_with_addrs): Only print symbol loading messages
if requested.
(_initialize_symfile): Register "print symbol-loading" set/show
command.
* symfile.h (print_symbol_loading_p): Declare.
doc/
* gdb.texinfo (Symbols): Document set/show print symbol-loading.
testsuite/
* gdb.base/print-symbol-loading-lib.c: New file.
* gdb.base/print-symbol-loading-main.c: New file.
* gdb.base/print-symbol-loading.exp: New file.
Hi,
I find two fails in source-dir.exp on mingw32 host.
(gdb) directory /nOtExStInG/a /nOtExStInG/b /nOtExStInG/c^M
Warning: /nOtExStInG/a: No such file or directory.^M
Warning: /nOtExStInG/b: No such file or directory.^M
Warning: /nOtExStInG/c: No such file or directory.^M
Source directories searched: /nOtExStInG/a;/nOtExStInG/b;/nOtExStInG/c;$cdir;$cwd^M
(gdb) FAIL: gdb.base/source-dir.exp: directory /nOtExStInG/a /nOtExStInG/b /nOtExStInG/c
directory /nOtExStInG/b /nOtExStInG/d /nOtExStInG/c^M
Warning: /nOtExStInG/b: No such file or directory.^M
Warning: /nOtExStInG/d: No such file or directory.^M
Warning: /nOtExStInG/c: No such file or directory.^M
Source directories searched: /nOtExStInG/b;/nOtExStInG/d;/nOtExStInG/c;/nOtExStInG/a;$cdir;$cwd^M
(gdb) FAIL: gdb.base/source-dir.exp: directory /nOtExStInG/b /nOtExStInG/d /nOtExStInG/c
The regular expression expects ':' and ';' is path separator on Windows.
This patch is to allow ';' as a path separator in regular expression.
This patch is similar to Dan's patch to fix a similar problem here
Re: directory separators on minGW hosts
https://sourceware.org/ml/gdb-patches/2006-02/msg00359.html
It is obvious. Pushed it in.
gdb/testsuite:
2014-03-31 Yao Qi <yao@codesourcery.com>
* gdb.base/source-dir.exp: Allow ';' as a directory separator.
Given the following variable...
BT : Bounded := New_Bounded (Low => 1, High => 3);
... where type Bounded is defined as a simple unconstrained array:
type Bounded is array (Integer range <>) of Integer;
Creating a varobj for that variable, and immediately asking for
varobj updates, GDB says that our varobj changed types!
(gdb)
-var-create bt * bt
^done,name="bt",numchild="3",value="[3]",type="<ref> array (1 .. 3) of integer",has_more="0"
(gdb)
-var-update 1 *
^done,changelist=[{name="bt",value="[3]",in_scope="true",type_changed="true",new_type="<ref> array (1 .. 3) of integer",new_num_children="3",has_more="0"}]
The expected output for the -var-update command is, in this case:
(gdb)
-var-update 1 *
^done,changelist=[]
The problem occurs because the ada-varobj module does not handle
references, and while the references gets stripped when the varobj
gets created, it doesn't when computing varobj updates.
More specifically, when creating the varobj, varobj_create creates
a new value which is a reference to a TYPE_CODE_ARRAY. It then calls
install_new_value which calls coerce_ref with the following comment:
/* We are not interested in the address of references, and given
that in C++ a reference is not rebindable, it cannot
meaningfully change. So, get hold of the real value. */
if (value)
value = coerce_ref (value);
This leaves the varobj's type component still a ref, while
the varobj's value is now our array, without the ref. This explains
why the "value" field in the varobj indicates an array with 3 elements
"[3]" while the "type" field shows a ref to an array. Generally
speaking, most users have said that showing the ref was a useful
piece of information, so this patch is not touching this part.
Next, when the user issues the -var-update request, varobj_update
calls value_of_root to compute the varobj's new value as well as
determine whether the value's type has changed or not. What happens
in a nutshell is that it calls value_of_root_1 (which re-evaluates
the expression and returns the corresponding new value), finds that
the new value is not NULL, and thus asks whether it has mutated:
else if (varobj_value_has_mutated (var, value, value_type (value)))
This then indirectly delegates the determination to the language-specific
callback, which fails, because it does not handle references.
This patch fixes the issue by adjusting varobj_value_has_mutated to
expect references, and strip them when seen. This allows the various
language-specific implementations to remain unaware of references.
gdb/ChangeLog:
* varobj.c (varobj_value_has_mutated): If NEW_VALUE is
a reference, strip the reference layer before calling
the lang_ops value_has_mutated callback.
gdb/testsuite/ChangeLog:
* gdb.ada/mi_dyn_arr: New testcase.
nios2 uses software single step, so GDB is unable to single step to
the signal handler. In order to reflect this, teach
can_single_step_to_signal_handler to return zero for nios2 target.
gdb/testsuite:
2014-03-27 Yao Qi <yao@codesourcery.com>
* lib/gdb.exp (can_single_step_to_signal_handler): Return zero
if target is nios2-*-*.
The completion feature and other features on readline depend on the
readline library. However, readline library is not always used, for
example, running testsuite like
make check RUNTESTFLAGS="--host_board=local-remote-host"
the input stream is not a tty, and GDB doesn't use readline library
as a result.
This patch is to skip tests on completion and readline if
'show editing' is off, which means readline isn't used. Note that
some tests in gdb.base/completion.exp test command complete, which
isn't related to readline, so these tests aren't affected by readline
library. This patch also moves these tests up, run them
unconditionally, and run the rest if readline library is used.
gdb/testsuite:
2014-03-26 Yao Qi <yao@codesourcery.com>
* lib/gdb.exp (readline_is_used): New proc.
* gdb.base/completion.exp: Move tests on command complete up.
Skip the rest of tests if readline is not used.
* gdb.ada/complete.exp: Skp the test if readline is not
used.
* gdb.base/filesym.exp: Likewise.
* gdb.base/macscp.exp: Likewise.
* gdb.base/readline-ask.exp: Likewise.
* gdb.base/readline.exp: Likewise.
* gdb.python/py-cmd.exp: Likewise.
* gdb.trace/tfile.exp: Likewise.
When I do something else, I find code format in gdb.base/macscp.exp is
messy. This patch is to fix various code format issues in it.
Pushed as it is obvious.
gdb/testsuite:
2014-03-26 Yao Qi <yao@codesourcery.com>
* gdb.base/macscp.exp: Fix code format issues.
Add new powerpc64le.inc file appropriate for the ELFv2 ABI and
use it to support the asm-source.exp test case on powerpc64le.
gdb/testsuite/
2014-03-25 Ulrich Weigand <uweigand@de.ibm.com>
* gdb.asm/asm-source.exp: Handle powerpc64le-* targets.
* gdb.asm/powerpc64le.inc: New file.
Sourcing a GDB script that runs foreground execution commands in
succession fails if the target can async:
Breakpoint 1, main () at ../../../src/gdb/testsuite/gdb.base/source-execution.c:36
36 func1 ();
(gdb) source ../../../src/gdb/testsuite/gdb.base/source-execution.gdb
../../../src/gdb/testsuite/gdb.base/source-execution.gdb:21: Error in sourced command file:
Cannot execute this command while the selected thread is running.
(gdb) FAIL: gdb.base/source-execution.exp: source source-execution.gdb
That is, after a foreground execution command, GDB moves on to the
following command immediately before waiting for the previous command
to complete.
https://sourceware.org/ml/gdb-patches/2011-09/msg00037.html (b4a14fd0)
addressed this for command lists, Python's gdb.execute, etc., but
missed "source". Fixed now in the same way.
gdb/
2014-03-25 Pedro Alves <palves@redhat.com>
* cli/cli-script.c (script_from_file): Force the interpreter to
sync mode.
gdb/testsuite/
2014-03-25 Pedro Alves <palves@redhat.com>
Doug Evans <dje@google.com>
* gdb.base/source-execution.c: New file.
* gdb.base/source-execution.exp: New file.
* gdb.base/source-execution.gdb: New file.
After a previous patch that was committed by Pedro (0000e5cc), trying
to set a dprintf with with a GDBserver that doesn't support agent
commands at all now throws an error. But the dprintf tests still fail
with some GDBserver targets because they doesn't try to handle the
case of the server reporting support for breakpoint commands, but not
be able to use those in combination with Z0 (because Z0 isn't actually
supported, for example):
FAIL: gdb.base/dprintf.exp: 1st dprintf, agent
FAIL: gdb.base/dprintf.exp: 2nd dprintf, agent
FAIL: gdb.base/dprintf.exp: dprintf info 2 (pattern 4)
Similarly for the MI test.
This patch makes the tests handle this scenario.
Tested with native, and native gdbserver on x86_64 Fedora 17.
Also tested with the native-gdbserver.exp board hacked with:
set GDBFLAGS "${GDBFLAGS} -ex \"set remote breakpoint-commands off\""
(actually, "set remote breakpoint-commands off" is presently broken,
so this was on top of a fix for that command.)
which results in:
(gdb) PASS: gdb.base/dprintf.exp: 2nd dprintf, gdb
set dprintf-style agent
warning: Target cannot run dprintf commands, falling back to GDB printf
warning: Target cannot run dprintf commands, falling back to GDB printf
(gdb) UNSUPPORTED: gdb.base/dprintf.exp: set dprintf style to agent
gdb.sum:
Running target native-gdbserver
Running ../../../src/gdb/testsuite/gdb.base/dprintf.exp ...
PASS: gdb.base/dprintf.exp: dprintf
PASS: gdb.base/dprintf.exp: dprintf foo
PASS: gdb.base/dprintf.exp: dprintf 29
PASS: gdb.base/dprintf.exp: dprintf foo,"At foo entry\n"
PASS: gdb.base/dprintf.exp: ignore $bpnum 1
PASS: gdb.base/dprintf.exp: dprintf 26,"arg=%d, g=%d\n", arg, g
PASS: gdb.base/dprintf.exp: dprintf info 1
PASS: gdb.base/dprintf.exp: break 27
PASS: gdb.base/dprintf.exp: 1st dprintf, gdb
PASS: gdb.base/dprintf.exp: 2nd dprintf, gdb
UNSUPPORTED: gdb.base/dprintf.exp: set dprintf style to agent
PASS: gdb.base/dprintf.exp: Set dprintf style to an unrecognized type
And also with the native-gdbserver.exp board hacked with:
set GDBFLAGS "${GDBFLAGS} -ex \"set remote Z-packet off\""
which results in:
(gdb) continue
Continuing.
Warning:
Cannot insert breakpoint 3: Target doesn't support breakpoints that have target side commands.
Cannot insert breakpoint 4: Target doesn't support breakpoints that have target side commands.
(gdb) UNSUPPORTED: gdb.base/dprintf.exp: 1st dprintf, agent
gdb.sum:
Running target native-gdbserver
Running ../../../src/gdb/testsuite/gdb.base/dprintf.exp ...
PASS: gdb.base/dprintf.exp: dprintf
PASS: gdb.base/dprintf.exp: dprintf foo
PASS: gdb.base/dprintf.exp: dprintf 29
PASS: gdb.base/dprintf.exp: dprintf foo,"At foo entry\n"
PASS: gdb.base/dprintf.exp: ignore $bpnum 1
PASS: gdb.base/dprintf.exp: dprintf 26,"arg=%d, g=%d\n", arg, g
PASS: gdb.base/dprintf.exp: dprintf info 1
PASS: gdb.base/dprintf.exp: break 27
PASS: gdb.base/dprintf.exp: 1st dprintf, gdb
PASS: gdb.base/dprintf.exp: 2nd dprintf, gdb
PASS: gdb.base/dprintf.exp: set dprintf style to agent
UNSUPPORTED: gdb.base/dprintf.exp: 1st dprintf, agent
PASS: gdb.base/dprintf.exp: Set dprintf style to an unrecognized type
(One of the new comments mentions breakpoint always-inserted mode.
Actually testing with breakpoint always-inserted mode fails these
dprintf tests, due to the way they are written. But that'll take a
more substancial rewrite of the tests, so I'm leaving that for another
day.)
gdb/testsuite/
2014-03-24 Hui Zhu <hui@codesourcery.com>
Pedro Alves <palves@redhat.com>
PR breakpoints/16101
* gdb.base/dprintf.exp: Use unsupported rather than changing the
test pass/fail messages. Detect missing support for dprintf when
breakpoints are actually inserted.
* gdb.base/mi-dprintf.exp: Detect missing support for dprintf when
breakpoints are actually inserted.
* lib/mi-support.exp (mi_run_cmd_full): Return -1 if continue
fails.
That "set debug lin-lwp 1" command even is not needed for the functionality of
this testcase.
This patch does fix a testcase error on aarch64-none-elf.
gdb/testsuite/
2014-03-24 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.base/gdb-sigterm.exp (do_test): Remove "set debug lin-lwp 1".
Message-ID: <20140323165745.GA23830@host2.jankratochvil.net>
As we move code on reading unavailable memory to target side, GDB core
side doesn't need the "switching momentarily out of tfind mode" dance.
The target remote knows how to read live memory (through remote_ops).
Remove set_traceframe_number and
make_cleanup_restore_traceframe_number, since they are no longer used.
gdb:
2014-03-22 Yao Qi <yao@codesourcery.com>
* remote.c (target_read_live_memory): Remove.
(memory_xfer_live_readonly_partial): Rename it to
remote_xfer_live_readonly_partial. Remove argument 'object'.
All callers updated. Call remote_read_bytes_1
instead of target_read_live_memory.
* tracepoint.c (set_traceframe_number): Remove.
(make_cleanup_restore_traceframe_number): Likewise .
* tracepoint.h (set_traceframe_number): Remove declaration.
(make_cleanup_restore_traceframe_number): Likewise.
This patch moves code in remote_read_bytes on reading from the remote
stub to a new function remote_read_bytes_1.
gdb:
2014-03-22 Yao Qi <yao@codesourcery.com>
* remote.c (remote_read_bytes): Move code on reading from the
remote stub to ...
(remote_read_bytes_1): ... here. New function.
As a follow-up to
[PATCH 7/8] Adjust read_value_memory to use to_xfer_partial
https://sourceware.org/ml/gdb-patches/2014-02/msg00384.html
this patch moves traceframe_available_memory down to the target side.
After this patch, the gdb core code is cleaner, and code on handling
unavailable memory is moved to remote/tfile/ctf targets.
In details, this patch moves traceframe_available_memory code from
memory_xfer_partial_1 to remote target only, so remote target still
uses traceframe_info mechanism to check unavailable memory, and use
remote_ops to read them from read-only sections. We don't use
traceframe_info mechanism for tfile and ctf target, because it is
fast to iterate all traceframes from trace file, so the summary
information got from traceframe_info is not necessary.
This patch also moves two functions to remote.c from target.c,
because they are only used in remote.c. I'll clean them up in another
patch.
gdb:
2014-03-22 Yao Qi <yao@codesourcery.com>
* ctf.c (ctf_xfer_partial): Check the return value of
exec_read_partial_read_only, if it is not TARGET_XFER_OK,
return TARGET_XFER_UNAVAILABLE.
* tracefile-tfile.c (tfile_xfer_partial): Likewise.
* target.c (target_read_live_memory): Move it to remote.c.
(memory_xfer_live_readonly_partial): Likewise.
(memory_xfer_partial_1): Move some code to remote_read_bytes.
* remote.c (target_read_live_memory): Moved from target.c.
(memory_xfer_live_readonly_partial): Likewise.
(remote_read_bytes): New, factored out from
memory_xfer_partial_1.
This fixes:
FAIL: gdb.threads/thread-specific.exp: continue to thread-specific breakpoint (timeout)
ERROR: tcl error sourcing .../gdb/testsuite/gdb.threads/thread-specific.exp.
ERROR: can't read "this_breakpoint": no such variable
while executing
"gdb_test_multiple "info breakpoint $this_breakpoint" "info on bp" {
-re ".*stop only in thread (\[0-9\]*).*$gdb_prompt $" {
set this_thread $expe..."
(file ".../gdb/testsuite/gdb.threads/thread-specific.exp" line 108)
invoked from within
"source .../gdb/testsuite/gdb.threads/thread-specific.exp"
("uplevel" body line 1)
invoked from within
"uplevel #0 source .../gdb/testsuite/gdb.threads/thread-specific.exp"
invoked from within
"catch "uplevel #0 source $test_file_name""
and then:
FAIL: gdb.threads/thread-specific.exp: continue to thread-specific breakpoint (timeout)
UNTESTED: gdb.threads/thread-specific.exp: info on bp
ERROR: tcl error sourcing .../gdb/testsuite/gdb.threads/thread-specific.exp.
ERROR: can't read "this_thread": no such variable
while executing
"gdb_test {print $_thread} ".* = $this_thread" "thread var at break""
(file ".../gdb/testsuite/gdb.threads/thread-specific.exp" line 119)
invoked from within
"source .../gdb/testsuite/gdb.threads/thread-specific.exp"
("uplevel" body line 1)
invoked from within
"uplevel #0 source .../gdb/testsuite/gdb.threads/thread-specific.exp"
invoked from within
"catch "uplevel #0 source $test_file_name""
Final results:
FAIL: gdb.threads/thread-specific.exp: continue to thread-specific breakpoint (timeout)
UNTESTED: gdb.threads/thread-specific.exp: info on bp
UNTESTED: gdb.threads/thread-specific.exp: thread var at break
Of course the first failure best wasn't there, but failing that the script
shouldn't crash.
* gdb.threads/thread-specific.exp: Handle the lack of usable
$this_breakpoint and $this_thread.
ps -e | grep a.out
28886 pts/12 00:00:00 a.out
gdb -p 28886
Loaded symbols for /lib64/ld-linux-x86-64.so.2
0x0000003b0ccbc970 in __nanosleep_nocancel () from /lib64/libc.so.6
../../binutils-gdb/gdb/cleanups.c:265: internal-warning: restore_my_cleanups has found a stale cleanup
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n)
The backtrace of this issue:
(gdb) bt
file=0x8b0c10 "s' failed.", line=265, fmt=0x8b0c38 "nutils-gdb/gdb/cleanups.c",
ap=0x7fff803e3ed8) at ../../binutils-gdb/gdb/utils.c:748
fmt=0x8b0c38 "nutils-gdb/gdb/cleanups.c", ap=0x7fff803e3ed8)
at ../../binutils-gdb/gdb/utils.c:799
string=0x8b0c38 "nutils-gdb/gdb/cleanups.c") at ../../binutils-gdb/gdb/utils.c:809
at ../../binutils-gdb/gdb/cleanups.c:265
at ../../binutils-gdb/gdb/cleanups.c:276
at ../../binutils-gdb/gdb/exceptions.c:142
at ../../binutils-gdb/gdb/exceptions.c:203
command=0x5d5fb8 <attach_command_continuation_free_args+18>, arg=0x7fff803e525b "2914",
from_tty=1, mask=RETURN_MASK_ALL) at ../../binutils-gdb/gdb/exceptions.c:549
---Type <return> to continue, or q <return> to quit---
func_args=0x7fff803e4280, errstring=0x8cf2e4 "/local/bin", mask=RETURN_MASK_ALL)
at ../../binutils-gdb/gdb/exceptions.c:522
This is a new issue. It is introduced by commit https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=8bc2fe488957946d2cdccda3ce8d4f39e4003ea0
It removed the discard_cleanups (back_to) inside attach_command.
Then restore_my_cleanups will throw a internal_warning.
https://sourceware.org/ml/gdb-patches/2014-03/msg00374.html
2014-03-21 Hui Zhu <hui@codesourcery.com>
Pedro Alves <palves@redhat.com>
* darwin-nat.c (darwin_pid_to_exec_file): Change xmalloc to
static buffer.
* fbsd-nat.c (fbsd_pid_to_exec_file): Ditto.
* linux-nat.c (linux_child_pid_to_exec_file): Ditto.
* nbsd-nat.c (nbsd_pid_to_exec_file): Ditto.
