In order to provide 'collect_regset' support, the generic function
regcache_collect_regset is exploited. Since this requires writing
appropriate register maps, these can be used for supply_regset as
well.
Rather than supplying own supply/collect functions, use the generic
functions regcache_supply_regset and regcache_collect_regset instead.
The register maps are rewritten accordingly and become much shorter
(and better readable) than before.
These functions are intended to suit all targets that don't require too
special logic in their regset supply/collect methods. Having such
generic functions helps reducing target-specific complexity.
The regset structure's 'descr' field is intended to represent some
kind of "register map". Thus, before making more use of it, this
change renames it to 'regmap' and adjusts the comment appropriately.
(See: https://sourceware.org/ml/gdb-patches/2014-05/msg00664.html)
I run splint in gdb source and get the following warnings:
../../../git/gdb/corelow.c:740: Return value type int does not match declared type enum target_xfer_status: 0
'TARGET_XFER_EOF' (enum target_xfer_status) is expected to be returned,
but 0 is returned. This patch is to replace 0 with TARGET_XFER_EOF
in the implementations of to_xfer_partial.
gdb:
2014-08-07 Yao Qi <yao@codesourcery.com>
* corelow.c (core_xfer_partial): Replace 0 with TARGET_XFER_EOF.
* remote-m32r-sdi.c (m32r_xfer_memory): Likewise.
* remote.c (remote_read_bytes): Likewise.
When I read the comments to field 'u' of struct dwarf2_per_cu_data,
I don't think the comments say anything useful. I update it per
my understanding.
gdb:
2014-08-07 Yao Qi <yao@codesourcery.com>
* dwarf2read.c (struct dwarf2_per_cu_data) <u>: Tweak comments.
This patch is to fix PR remote/17230, which is a leftover of the
to_xfer_partial interface change. I tried splint and it reprots this
problem like this,
../../../git/gdb/remote-mips.c:2236: Return value type unsigned long long does not match declared type enum target_xfer_status: len
and this problem only exists in remote-mips.c.
gdb:
2014-08-07 Yao Qi <yao@codesourcery.com>
PR remote/17230
* remote-mips.c (mips_xfer_memory): Set *xfered_len and return
TARGET_XFER_OK instead of 0.
This commit moves the inclusion of errno.h to common-defs.h and
removes all other inclusions. Note that prior to this commit
server.h included errno.h protected by "#ifdef HAVE_ERRNO_H".
This protection was added with the Windows CE port, which is
currently broken. Since no other platform needs this, I have
removed the protection and the configury to support it.
gdb/
2014-08-07 Gary Benson <gbenson@redhat.com>
* common/common-defs.h: Include errno.h.
* defs.h: Do not include errno.h.
* ada-typeprint.c: Likewise.
* c-typeprint.c: Likewise.
* core-regset.c: Likewise.
* corefile.c: Likewise.
* corelow.c: Likewise.
* event-loop.c: Likewise.
* f-typeprint.c: Likewise.
* gnu-nat.c: Likewise.
* go32-nat.c: Likewise.
* i386gnu-nat.c: Likewise.
* m2-typeprint.c: Likewise.
* nat/linux-btrace.c: Likewise.
* p-typeprint.c: Likewise.
* procfs.c: Likewise.
* remote-sim.c: Likewise.
* rs6000-nat.c: Likewise.
* target.c: Likewise.
* typeprint.c: Likewise.
* ui-file.c: Likewise.
* valops.c: Likewise.
* valprint.c: Likewise.
gdb/gdbserver/
2014-08-07 Gary Benson <gbenson@redhat.com>
* configure.ac (AC_CHECK_HEADERS): Remove errno.h.
* configure: Regenerate.
* config.in: Likewise.
* server.h: Do not include errno.h.
* event-loop.c: Likewise.
* hostio-errno.c: Likewise.
* linux-low.c: Likewise.
* remote-utils.c: Likewise.
* spu-low.c: Likewise.
* utils.c: Likewise.
* gdbreplay.c: Unconditionally include errno.h.
This commit moves the inclusion of common-utils.h to common-defs.h and
removes all other inclusions.
gdb/
2014-08-07 Gary Benson <gbenson@redhat.com>
* common/common-defs.h: Include common-utils.h.
* defs.h: Do not include common-utils.h.
* common/gdb_assert.h: Likewise.
* darwin-nat.h: Likewise.
* nat/linux-btrace.c: Likewise.
* target/waitstatus.h: Likewise.
gdb/gdbserver/
2014-08-07 Gary Benson <gbenson@redhat.com>
* server.h: Do not include common-utils.h.
This commit moves the inclusion of ptid.h to common-defs.h and removes
all other inclusions.
gdb/
2014-08-07 Gary Benson <gbenson@redhat.com>
* common/common-defs.h: Include ptid.h.
* defs.h: Do not include ptid.h.
* inferior.h: Likewise.
* infrun.h: Likewise.
* nat/linux-btrace.h: Likewise.
* nat/linux-osdata.h: Likewise.
* target/waitstatus.h: Likewise.
gdb/gdbserver/
2014-08-07 Gary Benson <gbenson@redhat.com>
* server.h: Do not include ptid.h.
* notif.h: Likewise.
This commit moves the inclusion of gdb_locale.h to common-defs.h and
removes all other inclusions.
gdb/
2014-08-07 Gary Benson <gbenson@redhat.com>
* common/common-defs.h: Include gdb_locale.h.
* defs.h: Do not include gdb_locale.h.
gdb/gdbserver/
2014-08-07 Gary Benson <gbenson@redhat.com>
* server.h: Do not include gdb_locale.h.
This commit moves the inclusion of gdb/signals.h to common-defs.h and
removes all other inclusions.
gdb/
2014-08-07 Gary Benson <gbenson@redhat.com>
* common/common-defs.h: Include gdb/signals.h.
* defs.h: Do not include gdb/signals.h.
gdb/gdbserver/
2014-08-07 Gary Benson <gbenson@redhat.com>
* server.h: Do not include gdb/signals.h.
* win32-low.c: Likewise.
This commit moves the inclusion of pathmax.h to common-defs.h and
removes all other inclusions.
gdb/
2014-08-07 Gary Benson <gbenson@redhat.com>
* common/common-defs.h: Include pathmax.h.
* defs.h: Do not include pathmax.h.
gdb/gdbserver/
2014-08-07 Gary Benson <gbenson@redhat.com>
* server.h: Do not include pathmax.h.
This commit moves the inclusion of libiberty.h to common-defs.h and
removes all other inclusions.
gdb/
2014-08-07 Gary Benson <gbenson@redhat.com>
* common/common-defs.h: Include libiberty.h.
* defs.h: Do not include libiberty.h.
* common/queue.h: Likewise.
* cp-name-parser.y: Likewise.
* mi/mi-cmd-catch.c: Likewise.
* python/python.c: Likewise.
gdb/gdbserver/
2014-08-07 Gary Benson <gbenson@redhat.com>
* server.h: Do not include libiberty.h.
* linux-bfin-low.c: Likewise.
This commit moves the inclusion of ansidecl.h to common-defs.h and
removes all other inclusions.
gdb/
2014-08-07 Gary Benson <gbenson@redhat.com>
* common/common-defs.h: Include ansidecl.h.
* defs.h: Do not include ansidecl.h.
* common/buffer.h: Likewise.
* common/common-utils.h: Likewise.
gdb/gdbserver/
2014-08-07 Gary Benson <gbenson@redhat.com>
* server.h: Do not include ansidecl.h.
This commit moves the inclusion of stdarg.h to common-defs.h and
removes all other inclusions.
gdb/
2014-08-07 Gary Benson <gbenson@redhat.com>
* common/common-defs.h: Include stdarg.h.
* defs.h: Do not include stdarg.h.
* ada-lang.c: Likewise.
* common/common-utils.h: Likewise.
* guile/scm-string.c: Likewise.
* guile/scm-utils.c: Likewise.
* m32c-tdep.c: Likewise.
gdb/gdbserver/
2014-08-07 Gary Benson <gbenson@redhat.com>
* server.h: Do not include stdarg.h.
* nto-low.c: Likewise.
I saw this gem of not so legible code in solib-svr4.c (scan_dyntag):
if (dyn_tag == dyntag)
and thought it deserved a small rename.
This just renames variables to be a bit more clear for those who read the
code. I also constified the parameter because, why not. The same was
done in scan_dyntag_auxv as well.
Tested only by rebuilding, since the change was done mechanically.
gdb/Changelog:
2014-08-01 Simon Marchi <simon.marchi@ericsson.com>
* solib-svr4.c (scan_dyntag): Rename dyntag and dyn_tag variables.
(scan_dyntag_auxv): Same.
gdbserver's init_register_cache has some preprocessor conditionals
awkwardly nested around an if..else block. This commit moves the
conditionals inside the braces to make the code more readable.
gdb/gdbserver/
2014-08-06 Gary Benson <gbenson@redhat.com>
* regcache.c (init_register_cache): Move conditionals inside if.
File x86-linux-nat.h is included twice in amd64-linux-nat.c and
i386-linux-nat.c. This patch is to remove one.
gdb:
2014-08-06 Yao Qi <yao@codesourcery.com>
* amd64-linux-nat.c: Remove duplicated include
"x86-linux-nat.h".
* i386-linux-nat.c: Likewise.
This commit replaces a hardwired target-is-async check.
gdb/gdbserver/
2014-08-06 Gary Benson <gbenson@redhat.com>
* linux-low.c (linux_supports_non_stop): Use target_is_async_p.
When I read dwarf_decode_lines_1 comments today, it should be called
"special opcode" rather than "special operand", as said in DWARF spec.
It is obvious to me. I'll push it in if no comments in three days.
gdb:
2014-08-06 Yao Qi <yao@codesourcery.com>
* dwarf2read.c (dwarf_decode_lines_1): Replace "Special
operand" with "Special opcode" in comments.
This commit removes the pointless function initialize_interps.
gdb/
2014-08-05 Gary Benson <gbenson@redhat.com>
* interps.c (initialize_interps): Remove prototype.
(interpreter_initialized): Remove static global.
(interp_add): Do not call initialize_interps.
(initialize_interps): Remove function.
Right now, "set debug target" acts a bit strangely.
Most target APIs only notice that it has changed when the target stack
is changed in some way. This is because many methods implement the
setting using the special debug target. However, a few spots do
change their behavior immediately -- any place explicitly checking
"targetdebug".
Some of this peculiar behavior is documented. However, I think that
it just isn't very useful for it to work this way. So, this patch
changes "set debug target" to take effect immediately in all cases.
This is done by simply calling update_current_target when the setting
is changed.
This required one small change in the test suite. Here a test was
expecting the current behavior.
Built and regtested on x86-64 Fedora 20.
2014-08-04 Tom Tromey <tromey@redhat.com>
* target.c (set_targetdebug): New function.
(initialize_targets): Pass set_targetdebug when creating "set
debug target".
2014-08-04 Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Debugging Output): Update for change to "set debug
target".
2014-08-04 Tom Tromey <tromey@redhat.com>
* gdb.base/sss-bp-on-user-bp-2.exp: Expect output from "set debug
target 0".
This fixes a test suite regession that Yao noticed.
This test checks for some specific "target debug" output
that has changed since the test was written.
2014-08-04 Tom Tromey <tromey@redhat.com>
* gdb.base/sss-bp-on-user-bp-2.exp: Match "to_resume", not
"target_resume".
After applying hash 43662968, gdb.1 and other man pages are not added
target triplet even if we configure with --target=.
It causes conflicts on some distributions.
And uninstall rules requires $(transform) variable.
gdb/doc/ChangeLog:
* Makefile.in (transform): New variable.
(install-man1, install-man5): Apply $(transform) to man file names.
Tested by installing both native and cross debugger.
In Ada, variable-sized field can be located at any position of
a structure. Consider for instance the following declarations:
Dyn_Size : Integer := 1;
type Table is array (Positive range <>) of Integer;
type Inner is record
T1 : Table (1 .. Dyn_Size) := (others => 1);
T2 : Table (1 .. Dyn_Size) := (others => 2);
end record;
type Inner_Array is array (1 .. 2) of Inner;
type Outer is
record
I0 : Integer := 0;
A1 : Inner_Array;
Marker : Integer := 16#01020304#;
end record;
Rt : Outer;
What this does is declare a variable "Rt" of type Outer, which
contains 3 fields where the second (A1) is of type Inner_Array.
type Inner_Array is an array with 2 elements of type Inner.
Because type Inner contains two arrays whose upper bound depend
on a variable, the size of the array, and therefore the size of
type Inner is dynamic, thus making field A1 a dynamically-size
field.
When trying to print the value of Rt, we hit the following limitation:
(gdb) print rt
Attempt to resolve a variably-sized type which appears in the interior of
a structure type
The limitation was somewhat making sense in C, but needs to be lifted
for Ada. This patch mostly lifts that limitation. As a result of this
patch, the type length computation had to be reworked a little bit.
gdb/ChangeLog:
* gdbtypes.c (resolve_dynamic_struct): Do not generate an error
if detecting a variable-sized field that is not the last field.
Fix struct type length computation.
gdb/testsuite/ChangeLog:
* gdb.base/vla-datatypes.c (vla_factory): Add new variable
inner_vla_struct_object_size.
* gdb.base/vla-datatypes.exp: Adjust last test, and mark it
as xfail.
This is a trace which would have been useful when trying to understand
why the debugger was not decoding the stream of unwind codes I was
expecting. This patch adds a trace first informing us that we are
following the unwind info to the next unwind record in that chain.
gdb/ChangeLog:
* amd64-windows-tdep.c (amd64_windows_frame_decode_insns):
Add debug trace.
On x86_64-windows, GDB is unable to unwind past some code in
mswsock.dll. For instance:
(gdb) bt
#0 0x00000000778712fa in ntdll!ZwWaitForSingleObject ()
from C:\Windows\SYSTEM32\ntdll.dll
#1 0x000007fefcfb0f75 in WSPStartup ()
from C:\Windows\system32\mswsock.dll
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
The UNWIND_INFO record for frame #1's PC has a UNW_FLAG_CHAININFO
flag, and so after having decoded this unwind record, GDB's decoder
next tries to locate the next unwind record on the chain. Unfortunately,
the location of that unwind info appears to be miscomputed. This is
the expression used:
chain_vma = cache->image_base + unwind_info
+ sizeof (ex_ui) + ((codes_count + 1) & ~1) * 2 + 8;
The chain-info is expected to be right after the "Unwind codes
array" which is itself after all the fields of ex_ui's struct.
So the "+ 8" offset at the end should not be there.
Because of that extra offset, we were reading no longer processing
correct unwind info, leading the unwinder computing the wrong frame
size, computing the wrong return address, etc.
gdb/ChangeLog:
* amd64-windows-tdep.c (amd64_windows_frame_decode_insns):
Remove "+ 8" offset in computation of CHAIN_VMA.
This commit removes all inclusions of defs.h and server.h from header
files.
gdb/
2014-07-31 Gary Benson <gbenson@redhat.com>
* common/btrace-common.h: Do not include defs.h or server.h.
* nat/mips-linux-watch.h: Likewise.
* gdb-dlfcn.h: Do not include defs.h.
* tracefile.h: Likewise.
gdb/gdbserver/
2014-07-31 Gary Benson <gbenson@redhat.com>
* ax.h: Do not include server.h.
* gdbthread.h: Likewise.
* lynx-low.h: Likewise.
* notif.h: Likewise.
This makes target_ops::to_open take a const string and then fixes the
fallout.
There were a few of these I could not build. However I eyeballed it
and in any case the fixes should generally be trivial.
This is based on the patch to fix up the target debugging for to_open,
because that changes gdb to not directly install to_open as the target
command
2014-07-30 Tom Tromey <tromey@redhat.com>
* bsd-kvm.c (bsd_kvm_open): Constify.
* corelow.c (core_open): Constify.
* ctf.c (ctf_open): Constify.
* dbug-rom.c (dbug_open): Constify.
* exec.c (exec_open): Constify.
* m32r-rom.c (m32r_open, mon2000_open): Constify.
* microblaze-rom.c (picobug_open): Constify.
* nto-procfs.c (procfs_open_1, procfs_open, procfs_native_open):
Constify.
* ppcbug-rom.c (ppcbug_open0, ppcbug_open1): Constify.
* record-btrace.c (record_btrace_open): Constify.
* record-full.c (record_full_core_open_1, record_full_open_1)
(record_full_open): Constify.
* remote-m32r-sdi.c (m32r_open): Constify.
* remote-mips.c (common_open, mips_open, pmon_open, ddb_open)
(rockhopper_open, lsi_open): Constify.
* remote-sim.c (gdbsim_open): Constify.
* remote.c (remote_open, extended_remote_open, remote_open_1):
Constify.
* target.h (struct target_ops) <to_open>: Make "arg" const.
* tracefile-tfile.c (tfile_open): Constify.
This constifies a few functions in cli-utils -- get_number_trailer and
friends -- and then fixes the fallout.
2014-07-30 Tom Tromey <tromey@redhat.com>
* breakpoint.c (map_breakpoint_numbers): Update.
* cli/cli-utils.c (get_number_trailer): Make "pp" const. Update.
(get_number_const): New function.
(get_number): Rewrite using get_number_const.
(init_number_or_range): Make "string" const.
(number_is_in_list): Make "list" const.
* cli/cli-utils.h (get_number_const): Declare.
(struct get_number_or_range_state) <string, end_ptr>: Now const.
(init_number_or_range, number_is_in_list): Update.
* printcmd.c (map_display_numbers): Update.
* value.c (value_from_history_ref): Constify.
* value.h (value_from_history_ref): Update.
This constifies exec_file_attach and updates the rest of gdb.
Insight will need some minor tweaks after this, though it's worth
noting that I think all that hook stuff can actually just go away. I
sent a patch to this effect once, but since the Insight source
repository situation isn't currently resolved there wasn't a
convenient way to test it.
2014-07-30 Tom Tromey <tromey@redhat.com>
* corefile.c (hook_type, call_extra_exec_file_hooks)
(specify_exec_file_hook): Constify.
* exec.c (exec_file_attach): Make "filename" const.
* gdbcore.h (deprecated_exec_file_display_hook)
(specify_exec_file_hook, exec_file_attach): Constify.
* main.c (captured_main): Use catch_command_errors_const.
This is a follow-on to the patch to auto-generate target debug methods.
While working on that patch I noticed that the to_open debug setting
will never work. There is no path by which debug_to_open can be
called.
This patch fixes the problem by using a generic function as the
implementation of the various "target" subcommands, and then putting
the debug printing there.
This is also a tiny step toward fixing PR 7250 (and apparently why
command contexts were introduced).
Built and regtested on x86-64 Fedora 20.
2014-07-30 Tom Tromey <tromey@redhat.com>
* target.c (open_target): New function.
(add_target_with_completer, add_deprecated_target_alias): Use
set_cmd_sfunc, set_cmd_context.
(debug_to_open): Remove.
(setup_target_debug): Update.
Hello,
I happen to read the code and find the comments to operator_check are
incorrect. This patch is to fix the comments per my understanding.
The comments and field operator_check was added by this patch
https://sourceware.org/ml/gdb-patches/2010-04/msg00556.html
but the inconsistency between code and comments wasn't pointed out during
the review.
gdb:
2014-07-30 Yao Qi <yao@codesourcery.com>
* parser-defs.h (struct exp_descriptor) <operator_check>: Update
comments.
* parse.c (exp_iterate): Update comments.
This commit creates a new header, common/common-defs.h, to hold
definitions common to all code under gdb/. Both gdb/defs.h and
gdb/gdbserver/server.h are modified to include common-defs.h as
their first non-comment line; all code under gdb/ includes either
defs.h or server.h as appropriate, so common-defs.h will be the
first actual code the compiler sees.
For this initial commit common-defs.h includes only the two
config.h files. Future commits will move more code currently
duplicated across defs.h and server.h such that shared code in
gdb/{common,target,nat} can be modified to include common-defs.h
rather than defs.h or server.h.
gdb/
2014-07-30 Gary Benson <gbenson@redhat.com>
* common/common-defs.h: New file.
* Makefile.in (HFILES_NO_SRCDIR): Add common/common-defs.h.
* defs.h: Include common-defs.h.
Do not include config.h or build-gnulib/config.h.
gdb/gdbserver/
2014-07-30 Gary Benson <gbenson@redhat.com>
* server.h: Include common-defs.h.
Do not include config.h or build-gnulib-gdbserver/config.h.
