| Commit message (Collapse) | Author | Age | Files | Lines |
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Make find_thread_ptid (the overload that takes a process_stratum_target)
a method of process_stratum_target.
Change-Id: Ib190a925a83c6b93e9c585dc7c6ab65efbdd8629
Reviewed-By: Tom Tromey <tom@tromey.com>
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Use GDB_SIGNAL_TRAP instead of SIGTRAP. This is a no-op since the
value of SIGTRAP on FreeBSD matches the value of GDB_SIGNAL_TRAP, but
it is more correct.
Approved-By: Simon Marchi <simon.marchi@efficios.com>
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This is in #ifdef'd code for a workaround for FreeBSD versions older
than 11.1 which is why it wasn't caught earlier.
Approved-By: Simon Marchi <simon.marchi@efficios.com>
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No functional change, just style fixes.
Approved-By: Simon Marchi <simon.marchi@efficios.com>
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This commit is the result of running the gdb/copyright.py script,
which automated the update of the copyright year range for all
source files managed by the GDB project to be updated to include
year 2023.
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This is needed to permit using the helpers for register sets with a
variable base. In particular regnum needs to be converted into a
relative register number before passed to regcache_map_supplies.
Approved-By: Simon Marchi <simon.marchi@efficios.com>
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fbsd-nat includes various helper routines for fetching and storing
register sets via ptrace where the register set is described by a
regset. These helper routines directly invoke the
supply/collect_regset regcache methods which doesn't permit a regset
to provide custom logic when fetching or storing a register set.
Instead, just use the function pointers from the struct regset
directly.
Approved-By: Simon Marchi <simon.marchi@efficios.com>
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Currently, every internal_error call must be passed __FILE__/__LINE__
explicitly, like:
internal_error (__FILE__, __LINE__, "foo %d", var);
The need to pass in explicit __FILE__/__LINE__ is there probably
because the function predates widespread and portable variadic macros
availability. We can use variadic macros nowadays, and in fact, we
already use them in several places, including the related
gdb_assert_not_reached.
So this patch renames the internal_error function to something else,
and then reimplements internal_error as a variadic macro that expands
__FILE__/__LINE__ itself.
The result is that we now should call internal_error like so:
internal_error ("foo %d", var);
Likewise for internal_warning.
The patch adjusts all calls sites. 99% of the adjustments were done
with a perl/sed script.
The non-mechanical changes are in gdbsupport/errors.h,
gdbsupport/gdb_assert.h, and gdb/gdbarch.py.
Approved-By: Simon Marchi <simon.marchi@efficios.com>
Change-Id: Ia6f372c11550ca876829e8fd85048f4502bdcf06
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During the development of 40c23d880386d6e8202567eaa2a6b041feb1a652,
the return value of fbsd_nat_target::have_regset was changed from a
simple boolean to returning the size of the register set. The
comments and callers were all updated for this change, but the actual
return type was accidentally left as a bool. This change fixes the
return type to be a size_t.
Current callers of this only checked the value against 0 and thus
still worked correctly.
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I tried building GDB on GNU/Hurd, and ran into this error:
CXX gnu-nat.o
gnu-nat.c: In member function ‘virtual int gnu_nat_target::find_memory_regions(find_memory_region_ftype, void*)’:
gnu-nat.c:2620:21: error: too few arguments to function
2620 | (*func) (last_region_address,
| ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~
2621 | last_region_end - last_region_address,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2622 | last_protection & VM_PROT_READ,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2623 | last_protection & VM_PROT_WRITE,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2624 | last_protection & VM_PROT_EXECUTE,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2625 | 1, /* MODIFIED is unknown, pass it as true. */
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2626 | data);
| ~~~~~
gnu-nat.c:2635:13: error: too few arguments to function
2635 | (*func) (last_region_address, last_region_end - last_region_address,
| ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2636 | last_protection & VM_PROT_READ,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2637 | last_protection & VM_PROT_WRITE,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2638 | last_protection & VM_PROT_EXECUTE,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2639 | 1, /* MODIFIED is unknown, pass it as true. */
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2640 | data);
| ~~~~~
make[2]: *** [Makefile:1926: gnu-nat.o] Error 1
This is because in this commit:
commit 68cffbbd4406b4efe1aa6e18460b1d7ca02549f1
Date: Thu Mar 31 11:42:35 2022 +0100
[AArch64] MTE corefile support
Added a new argument to find_memory_region_ftype, but did not pass it to
the function in gnu-nat.c. Fix this by passing memory_tagged as false.
As Luis pointed out, similar bugs may also appear on FreeBSD and NetBSD,
and I have reproduced them on both systems. This patch fixes them
incidentally.
Tested by rebuilding on GNU/Hurd, FreeBSD/amd64 and NetBSD/amd64.
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This changes the parameter of target_ops::async from int to bool.
Regression tested on x86-64 Fedora 34.
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I ran into this error while working on AArch64 GDB:
Unable to fetch VFP registers.: Invalid argument.
Notice the '.:' in the middle of this error message.
This is because of this call in aarch64-linux-nat.c:
perror_with_name (_("Unable to fetch VFP registers."));
The perror_with_name function take a string, and adds ': <message>' to
the end the string, so I don't think the string that we pass to
perror_with_name should end in '.'.
This commit removes all of the trailing '.' characters from
perror_with_name calls, which give more readable error messages.
I don't believe that any of these errors are tested in the
testsuite (after a little grepping).
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This changes target_pid_to_exec_file and target_ops::pid_to_exec_file
to return a "const char *". I couldn't build many of these targets,
but did examine the code by hand -- also, as this only affects the
return type, it's normally pretty safe. This brings gdb and gdbserver
a bit closer, and allows for the removal of a const_cast as well.
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FreeBSD's kernel has recently added PT_GETREGSET and PT_SETREGSET
operations to fetch a register set named by an ELF note type. These
helper routines provide helpers to check for a register set's
existence, fetch registers for a register set, and store registers to
a register set.
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Now that filtered and unfiltered output can be treated identically, we
can unify the printf family of functions. This is done under the name
"gdb_printf". Most of this patch was written by script.
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A number of spots call printf_unfiltered only because they are in code
that should not be interrupted by the pager. However, I believe these
cases are all handled by infrun's blanket ban on paging, and so can be
converted to the default (_filtered) API.
After this patch, I think all the remaining _unfiltered calls are ones
that really ought to be. A few -- namely in complete_command -- could
be replaced by a scoped assignment to pagination_enabled, but for the
remainder, the code seems simple enough like this.
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This method can be overridden by architecture-specific targets to
perform additional work before a thread is resumed.
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This method can be overridden by architecture-specific targets to
perform additional work when a thread is deleted.
Note that this method is only invoked on systems supporting LWP
events, but the pending use case (aarch64 debug registers) is not
supported on older kernels that do not support LWP events.
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This method can be overridden by architecture-specific targets to
perform additional work when a new child process is forked.
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Subclasses of inf_ptrace_target have to opt-in to using the event_pipe
by implementing the can_async_p and async methods. For subclasses
which do this, inf_ptrace_target provides is_async_p, async_wait_fd
and closes the pipe in the close target method.
inf_ptrace_target also provides wrapper routines around the event pipe
(async_file_open, async_file_close, async_file_flush, and
async_file_mark) for use in target methods such as async.
inf_ptrace_target also exports a static async_file_mark_if_open
function which can be used in SIGCHLD signal handlers.
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If the attach target supports async mode, enable it after the
attach target's ::attach method returns.
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ptrace on FreeBSD cannot be used against running processes and instead
fails with EBUSY. This meant that 'info threads' would fail if any of
the threads were running (for example when using schedule-multiple=on
in gdb.base/fork-running-state.exp). Instead of throwing errors, just
return nullptr as no thread name is better than causing info threads to
fail completely.
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Move the message from 'show debug fbsd-lwp' to 'show debug fbsd-nat'
since it is helpful for debugging async target support and not just
LWP support.
Use target_pid_to_str to format the ptid and log the step and signo
arguments.
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This is a fairly simple version of async target support.
Synchronous mode still uses blocking waitpid() calls in
inf_ptrace::wait() unlike the Linux native target which always uses
WNOHANG and uses sigsuspend() for synchronous operation.
Asynchronous mode registers an event pipe with the core as a file
handle and writes to the pipe when SIGCHLD is raised. TARGET_WNOHANG
is handled by inf_ptrace::wait().
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Change these helper functions to return true if they did any work.
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In an earlier version of the pager rewrite series, it was important to
audit unfiltered output calls to see which were truly necessary.
This is no longer necessary, but it still seems like a decent cleanup
to change calls to avoid explicitly passing gdb_stdout. That is,
rather than using something like fprintf_unfiltered with gdb_stdout,
the code ought to use plain printf_unfiltered instead.
This patch makes this change. I went ahead and converted all the
_filtered calls I could find, as well, for the same clarity.
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This commit brings all the changes made by running gdb/copyright.py
as per GDB's Start of New Year Procedure.
For the avoidance of doubt, all changes in this commits were
performed by the script.
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While working on a later patch that required me to understand how GDB
starts up inferiors, I was confused by the
target_ops::post_startup_inferior method.
The post_startup_inferior target function is only called from
inf_ptrace_target::create_inferior.
Part of the target class hierarchy looks like this:
inf_child_target
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'-- inf_ptrace_target
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|-- linux_nat_target
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|-- fbsd_nat_target
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|-- nbsd_nat_target
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|-- obsd_nat_target
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'-- rs6000_nat_target
Every sub-class of inf_ptrace_target, except rs6000_nat_target,
implements ::post_startup_inferior. The rs6000_nat_target picks up
the implementation of ::post_startup_inferior not from
inf_ptrace_target, but from inf_child_target.
No descendent of inf_child_target, outside the inf_ptrace_target
sub-tree, implements ::post_startup_inferior, which isn't really
surprising, as they would never see the method called (remember, the
method is only called from inf_ptrace_target::create_inferior).
What I find confusing is the role inf_child_target plays in
implementing, what is really a helper function for just one of its
descendents.
In this commit I propose that we formally make ::post_startup_inferior
a helper function of inf_ptrace_target. To do this I will remove the
::post_startup_inferior from the target_ops API, and instead make this
a protected, pure virtual function on inf_ptrace_target.
I'll remove the empty implementation of ::post_startup_inferior from
the inf_child_target class, and add a new empty implementation to the
rs6000_nat_target class.
All the other descendents of inf_ptrace_target already provide an
implementation of this method and so don't need to change beyond
making the method protected within their class declarations.
To me, this makes much more sense now. The helper function, which is
only called from within the inf_ptrace_target class, is now a part of
the inf_ptrace_target class.
The only way in which this change is visible to a user is if the user
turns on 'set debug target 1'. With this debug flag on, prior to this
patch the user would see something like:
-> native->post_startup_inferior (...)
<- native->post_startup_inferior (2588939)
After this patch these lines are no longer present, as the
post_startup_inferior is no longer a top level target method. For me,
this is an acceptable change.
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I stumbled on a bug caused by the fact that a code path read
target_waitstatus::value::sig (expecting it to contain a gdb_signal
value) while target_waitstatus::kind was TARGET_WAITKIND_FORKED. This
meant that the active union field was in fact
target_waitstatus::value::related_pid, and contained a ptid. The read
signal value was therefore garbage, and that caused GDB to crash soon
after. Or, since that GDB was built with ubsan, this nice error
message:
/home/simark/src/binutils-gdb/gdb/linux-nat.c:1271:12: runtime error: load of value 2686365, which is not a valid value for type 'gdb_signal'
Despite being a large-ish change, I think it would be nice to make
target_waitstatus safe against that kind of bug. As already done
elsewhere (e.g. dynamic_prop), validate that the type of value read from
the union matches what is supposed to be the active field.
- Make the kind and value of target_waitstatus private.
- Make the kind initialized to TARGET_WAITKIND_IGNORE on
target_waitstatus construction. This is what most users appear to do
explicitly.
- Add setters, one for each kind. Each setter takes as a parameter the
data associated to that kind, if any. This makes it impossible to
forget to attach the associated data.
- Add getters, one for each associated data type. Each getter
validates that the data type fetched by the user matches the wait
status kind.
- Change "integer" to "exit_status", "related_pid" to "child_ptid",
just because that's more precise terminology.
- Fix all users.
That last point is semi-mechanical. There are a lot of obvious changes,
but some less obvious ones. For example, it's not possible to set the
kind at some point and the associated data later, as some users did.
But in any case, the intent of the code should not change in this patch.
This was tested on x86-64 Linux (unix, native-gdbserver and
native-extended-gdbserver boards). It was built-tested on x86-64
FreeBSD, NetBSD, MinGW and macOS. The rest of the changes to native
files was done as a best effort. If I forgot any place to update in
these files, it should be easy to fix (unless the change happens to
reveal an actual bug).
Change-Id: I0ae967df1ff6e28de78abbe3ac9b4b2ff4ad03b7
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get_ada_task_ptid currently takes a 'long' as its 'thread' parameter
type. However, on some platforms this is actually a pointer, and
using 'long' can sometimes end up with the value being sign-extended.
This sign extension can cause problems later, if the tid is then later
used as an address again.
This patch changes the parameter type to ULONGEST and updates all the
uses. This approach preserves sign extension on the targets where it
is apparently intended, while avoiding it on others.
Co-Authored-By: John Baldwin <jhb@FreeBSD.org>
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I wanted to find, and potentially modify, all the spots where the
'tid' parameter to the ptid_t constructor was used. So, I temporarily
removed this parameter and then rebuilt.
In order to make it simpler to search through the "real" (nonzero)
uses of this parameter, something I knew I'd have to do multiple
times, I removed any ", 0" from constructor calls.
Co-Authored-By: John Baldwin <jhb@FreeBSD.org>
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The handler for 'info proc status' for native processes on FreeBSD
uses the 'j' size modifier along with uintmax_t / intmax_t casts to
output integer values for types such as off_t that are not aliases of
a basic C type such as 'int' or 'long'. printf_filtered does not
support the 'j' modifer, so this resulted in runtime errors in
practice:
(gdb) info proc stat
process 8674
Name: ls
State: T (stopped)
Parent process: 8673
Process group: 8674
Session id: 2779
Unrecognized format specifier 'j' in printf
Instead, use plongest and pulongest to generate the output strings of
these integer values.
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In the context of ROCm-gdb [1], the ROCm target sits on top of the
linux-nat target. when a process forks, it needs to carry over some
data from the forking inferior to the fork child inferior. Ideally, the
ROCm target would implement the follow_fork target_ops method, but there
are some small problems. This patch fixes these, which helps the ROCm
target, but also makes things more consistent and a bit nicer in
general, I believe.
The main problem is: when follow-fork-mode is "parent",
target_follow_fork is called with the parent as the current inferior.
When it's "child", target_follow_fork is called with the child as the
current inferior. This means that target_follow_fork is sometimes
called on the parent's target stack and sometimes on the child's target
stack.
The parent's target stack may contain targets above the process target,
such as the ROCm target. So if follow-fork-child is "parent", the ROCm
target would get notified of the fork and do whatever is needed. But
the child's target stack, at that moment, only contains the exec and
process target copied over from the parent. The child's target stack is
set up by follow_fork_inferior, before calling target_follow_fork. In
that case, the ROCm target wouldn't get notified of the fork.
For consistency, I think it would be good to always call
target_follow_fork on the parent inferior's target stack. I think it
makes sense as a way to indicate "this inferior has called fork, do
whatever is needed". The desired outcome of the fork (whether an
inferior is created for the child, do we need to detach from the child)
can be indicated by passed parameter.
I therefore propose these changes:
- make follow_fork_inferior always call target_follow_fork with the
parent as the current inferior. That lets all targets present on the
parent's target stack do some fork-related handling and push
themselves on the fork child's target stack if needed.
For this purpose, pass the child inferior down to target_follow_fork
and follow_fork implementations. This is nullptr if no inferior is
created for the child, because we want to detach from it.
- as a result, in follow_fork_inferior, detach from the parent inferior
(if needed) only after the target_follow_fork call. This is needed
because we want to call target_follow_fork before the parent's
target stack is torn down.
- hand over to the targets in the parent's target stack (including the
process target) the responsibility to push themselves, if needed, to
the child's target stack. Also hand over the responsibility to the
process target, at the same time, to create the child's initial
thread (just like we do for follow_exec).
- pass the child inferior to exec_on_vfork, so we don't need to swap
the current inferior between parent and child. Nothing in
exec_on_vfork depends on the current inferior, after this change.
Although this could perhaps be replaced with just having the exec
target implement follow_fork and push itself in the child's target
stack, like the process target does... We would just need to make
sure the process target calls beneath()->follow_fork(...). I'm not
sure about this one.
gdb/ChangeLog:
* target.h (struct target_ops) <follow_fork>: Add inferior*
parameter.
(target_follow_fork): Likewise.
* target.c (default_follow_fork): Likewise.
(target_follow_fork): Likewise.
* fbsd-nat.h (class fbsd_nat_target) <follow_fork>: Likewise.
(fbsd_nat_target::follow_fork): Likewise, and call
inf_ptrace_target::follow_fork.
* linux-nat.h (class linux_nat_target) <follow_fork>: Likewise.
* linux-nat.c (linux_nat_target::follow_fork): Likewise, and
call inf_ptrace_target::follow_fork.
* obsd-nat.h (obsd_nat_target) <follow_fork>: Likewise.
* obsd-nat.c (obsd_nat_target::follow_fork): Likewise, and call
inf_ptrace_target::follow_fork.
* remote.c (class remote_target) <follow_fork>: Likewise.
(remote_target::follow_fork): Likewise, and call
process_stratum_target::follow_fork.
* process-stratum-target.h (class process_stratum_target)
<follow_fork>: New.
* process-stratum-target.c
(process_stratum_target::follow_fork): New.
* target-delegates.c: Re-generate.
[1] https://github.com/ROCm-Developer-Tools/ROCgdb
Change-Id: I460bd0af850f0485e8aed4b24c6d8262a4c69929
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This is a small cleanup I think would be nice, that I spotted while
doing the following patch.
gdb/ChangeLog:
* target.h (struct target_ops) <follow_fork>: Add ptid and
target_waitkind parameters.
(target_follow_fork): Likewise.
* target.c (default_follow_fork): Likewise.
(target_follow_fork): Likewise.
* fbsd-nat.h (class fbsd_nat_target) <follow_fork>: Likewise.
* fbsd-nat.c (fbsd_nat_target::follow_fork): Likewise.
* linux-nat.h (class linux_nat_target) <follow_fork>: Likewise.
* linux-nat.c (linux_nat_target::follow_fork): Likewise.
* obsd-nat.h (class obsd_nat_target) <follow_fork>: Likewise.
* obsd-nat.c (obsd_nat_target::follow_fork): Likewise.
* remote.c (class remote_target) <follow_fork>: Likewise.
* target-debug.h (target_debug_print_target_waitkind): New.
* target-delegates.c: Re-generate.
Change-Id: I5421a542f2e19100a22b74cc333d2b235d0de3c8
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In particular, this supports register sets described by a regcache_map
which are fetched and stored with dedicated ptrace operations. These
functions are intended to be used in architecture-specific
fetch_registers and store_registers target methods.
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Use procctl(2) with PROC_ASLR_CTL to disable address space
randomization in the current gdb process before forking a child
process for a new inferior when address space randomization is
disabled.
gdb/ChangeLog:
* configure.ac: Check for <sys/procctl.h>.
* config.in, configure: Regenerate.
* fbsd-nat.c: Include <sys/procctl.h> if present.
[PROC_ASLR_CTL] (maybe_disable_address_space_randomization): New.
(fbsd_nat_target::create_inferior)
(fbsd_nat_target::supports_disable_randomization): New.
* fbsd-nat.h (fbsd_nat_target::create_inferior)
(fbsd_nat_target::supports_disable_randomization): New.
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gdb/ChangeLog:
* fbsd-nat.c (fbsd_lwp_debug_printf, fbsd_nat_debug_printf): New,
use throughout file.
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I noticed that all implementations return false, so
target_ops::follow_fork doesn't really need to return a value. Change
it to return void.
gdb/ChangeLog:
* target.h (struct target_ops) <follow_fork>: Return void.
(target_follow_fork): Likewise.
* target.c (default_follow_fork): Likewise.
(target_follow_fork): Likewise.
* infrun.c (follow_fork_inferior): Adjust.
* fbsd-nat.h (class fbsd_nat_target) <follow_fork>: Return void.
* fbsd-nat.c (fbsd_nat_target:::follow_fork): Likewise.
* linux-nat.h (class linux_nat_target) <follow_fork>: Likewise.
* linux-nat.c (linux_nat_target::follow_fork): Return void.
* obsd-nat.h (class obsd_nat_target) <follow_fork>: Return void.
* obsd-nat.c (obsd_nat_target::follow_fork): Likewise.
* remote.c (class remote_target) <follow_fork>: Likewise.
(remote_target::follow_fork): Likewise.
* target-delegates.c: Re-generate.
Change-Id: If908c2f68b29fa275be2b0b9deb41e4c6a1b7879
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This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
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Many spots incorrectly use only spaces for indentation (for example,
there are a lot of spots in ada-lang.c). I've always found it awkward
when I needed to edit one of these spots: do I keep the original wrong
indentation, or do I fix it? What if the lines around it are also
wrong, do I fix them too? I probably don't want to fix them in the same
patch, to avoid adding noise to my patch.
So I propose to fix as much as possible once and for all (hopefully).
One typical counter argument for this is that it makes code archeology
more difficult, because git-blame will show this commit as the last
change for these lines. My counter counter argument is: when
git-blaming, you often need to do "blame the file at the parent commit"
anyway, to go past some other refactor that touched the line you are
interested in, but is not the change you are looking for. So you
already need a somewhat efficient way to do this.
Using some interactive tool, rather than plain git-blame, makes this
trivial. For example, I use "tig blame <file>", where going back past
the commit that changed the currently selected line is one keystroke.
It looks like Magit in Emacs does it too (though I've never used it).
Web viewers of Github and Gitlab do it too. My point is that it won't
really make archeology more difficult.
The other typical counter argument is that it will cause conflicts with
existing patches. That's true... but it's a one time cost, and those
are not conflicts that are difficult to resolve. I have also tried "git
rebase --ignore-whitespace", it seems to work well. Although that will
re-introduce the faulty indentation, so one needs to take care of fixing
the indentation in the patch after that (which is easy).
gdb/ChangeLog:
* aarch64-linux-tdep.c: Fix indentation.
* aarch64-ravenscar-thread.c: Fix indentation.
* aarch64-tdep.c: Fix indentation.
* aarch64-tdep.h: Fix indentation.
* ada-lang.c: Fix indentation.
* ada-lang.h: Fix indentation.
* ada-tasks.c: Fix indentation.
* ada-typeprint.c: Fix indentation.
* ada-valprint.c: Fix indentation.
* ada-varobj.c: Fix indentation.
* addrmap.c: Fix indentation.
* addrmap.h: Fix indentation.
* agent.c: Fix indentation.
* aix-thread.c: Fix indentation.
* alpha-bsd-nat.c: Fix indentation.
* alpha-linux-tdep.c: Fix indentation.
* alpha-mdebug-tdep.c: Fix indentation.
* alpha-nbsd-tdep.c: Fix indentation.
* alpha-obsd-tdep.c: Fix indentation.
* alpha-tdep.c: Fix indentation.
* amd64-bsd-nat.c: Fix indentation.
* amd64-darwin-tdep.c: Fix indentation.
* amd64-linux-nat.c: Fix indentation.
* amd64-linux-tdep.c: Fix indentation.
* amd64-nat.c: Fix indentation.
* amd64-obsd-tdep.c: Fix indentation.
* amd64-tdep.c: Fix indentation.
* amd64-windows-tdep.c: Fix indentation.
* annotate.c: Fix indentation.
* arc-tdep.c: Fix indentation.
* arch-utils.c: Fix indentation.
* arch/arm-get-next-pcs.c: Fix indentation.
* arch/arm.c: Fix indentation.
* arm-linux-nat.c: Fix indentation.
* arm-linux-tdep.c: Fix indentation.
* arm-nbsd-tdep.c: Fix indentation.
* arm-pikeos-tdep.c: Fix indentation.
* arm-tdep.c: Fix indentation.
* arm-tdep.h: Fix indentation.
* arm-wince-tdep.c: Fix indentation.
* auto-load.c: Fix indentation.
* auxv.c: Fix indentation.
* avr-tdep.c: Fix indentation.
* ax-gdb.c: Fix indentation.
* ax-general.c: Fix indentation.
* bfin-linux-tdep.c: Fix indentation.
* block.c: Fix indentation.
* block.h: Fix indentation.
* blockframe.c: Fix indentation.
* bpf-tdep.c: Fix indentation.
* break-catch-sig.c: Fix indentation.
* break-catch-syscall.c: Fix indentation.
* break-catch-throw.c: Fix indentation.
* breakpoint.c: Fix indentation.
* breakpoint.h: Fix indentation.
* bsd-uthread.c: Fix indentation.
* btrace.c: Fix indentation.
* build-id.c: Fix indentation.
* buildsym-legacy.h: Fix indentation.
* buildsym.c: Fix indentation.
* c-typeprint.c: Fix indentation.
* c-valprint.c: Fix indentation.
* c-varobj.c: Fix indentation.
* charset.c: Fix indentation.
* cli/cli-cmds.c: Fix indentation.
* cli/cli-decode.c: Fix indentation.
* cli/cli-decode.h: Fix indentation.
* cli/cli-script.c: Fix indentation.
* cli/cli-setshow.c: Fix indentation.
* coff-pe-read.c: Fix indentation.
* coffread.c: Fix indentation.
* compile/compile-cplus-types.c: Fix indentation.
* compile/compile-object-load.c: Fix indentation.
* compile/compile-object-run.c: Fix indentation.
* completer.c: Fix indentation.
* corefile.c: Fix indentation.
* corelow.c: Fix indentation.
* cp-abi.h: Fix indentation.
* cp-namespace.c: Fix indentation.
* cp-support.c: Fix indentation.
* cp-valprint.c: Fix indentation.
* cris-linux-tdep.c: Fix indentation.
* cris-tdep.c: Fix indentation.
* darwin-nat-info.c: Fix indentation.
* darwin-nat.c: Fix indentation.
* darwin-nat.h: Fix indentation.
* dbxread.c: Fix indentation.
* dcache.c: Fix indentation.
* disasm.c: Fix indentation.
* dtrace-probe.c: Fix indentation.
* dwarf2/abbrev.c: Fix indentation.
* dwarf2/attribute.c: Fix indentation.
* dwarf2/expr.c: Fix indentation.
* dwarf2/frame.c: Fix indentation.
* dwarf2/index-cache.c: Fix indentation.
* dwarf2/index-write.c: Fix indentation.
* dwarf2/line-header.c: Fix indentation.
* dwarf2/loc.c: Fix indentation.
* dwarf2/macro.c: Fix indentation.
* dwarf2/read.c: Fix indentation.
* dwarf2/read.h: Fix indentation.
* elfread.c: Fix indentation.
* eval.c: Fix indentation.
* event-top.c: Fix indentation.
* exec.c: Fix indentation.
* exec.h: Fix indentation.
* expprint.c: Fix indentation.
* f-lang.c: Fix indentation.
* f-typeprint.c: Fix indentation.
* f-valprint.c: Fix indentation.
* fbsd-nat.c: Fix indentation.
* fbsd-tdep.c: Fix indentation.
* findvar.c: Fix indentation.
* fork-child.c: Fix indentation.
* frame-unwind.c: Fix indentation.
* frame-unwind.h: Fix indentation.
* frame.c: Fix indentation.
* frv-linux-tdep.c: Fix indentation.
* frv-tdep.c: Fix indentation.
* frv-tdep.h: Fix indentation.
* ft32-tdep.c: Fix indentation.
* gcore.c: Fix indentation.
* gdb_bfd.c: Fix indentation.
* gdbarch.sh: Fix indentation.
* gdbarch.c: Re-generate
* gdbarch.h: Re-generate.
* gdbcore.h: Fix indentation.
* gdbthread.h: Fix indentation.
* gdbtypes.c: Fix indentation.
* gdbtypes.h: Fix indentation.
* glibc-tdep.c: Fix indentation.
* gnu-nat.c: Fix indentation.
* gnu-nat.h: Fix indentation.
* gnu-v2-abi.c: Fix indentation.
* gnu-v3-abi.c: Fix indentation.
* go32-nat.c: Fix indentation.
* guile/guile-internal.h: Fix indentation.
* guile/scm-cmd.c: Fix indentation.
* guile/scm-frame.c: Fix indentation.
* guile/scm-iterator.c: Fix indentation.
* guile/scm-math.c: Fix indentation.
* guile/scm-ports.c: Fix indentation.
* guile/scm-pretty-print.c: Fix indentation.
* guile/scm-value.c: Fix indentation.
* h8300-tdep.c: Fix indentation.
* hppa-linux-nat.c: Fix indentation.
* hppa-linux-tdep.c: Fix indentation.
* hppa-nbsd-nat.c: Fix indentation.
* hppa-nbsd-tdep.c: Fix indentation.
* hppa-obsd-nat.c: Fix indentation.
* hppa-tdep.c: Fix indentation.
* hppa-tdep.h: Fix indentation.
* i386-bsd-nat.c: Fix indentation.
* i386-darwin-nat.c: Fix indentation.
* i386-darwin-tdep.c: Fix indentation.
* i386-dicos-tdep.c: Fix indentation.
* i386-gnu-nat.c: Fix indentation.
* i386-linux-nat.c: Fix indentation.
* i386-linux-tdep.c: Fix indentation.
* i386-nto-tdep.c: Fix indentation.
* i386-obsd-tdep.c: Fix indentation.
* i386-sol2-nat.c: Fix indentation.
* i386-tdep.c: Fix indentation.
* i386-tdep.h: Fix indentation.
* i386-windows-tdep.c: Fix indentation.
* i387-tdep.c: Fix indentation.
* i387-tdep.h: Fix indentation.
* ia64-libunwind-tdep.c: Fix indentation.
* ia64-libunwind-tdep.h: Fix indentation.
* ia64-linux-nat.c: Fix indentation.
* ia64-linux-tdep.c: Fix indentation.
* ia64-tdep.c: Fix indentation.
* ia64-tdep.h: Fix indentation.
* ia64-vms-tdep.c: Fix indentation.
* infcall.c: Fix indentation.
* infcmd.c: Fix indentation.
* inferior.c: Fix indentation.
* infrun.c: Fix indentation.
* iq2000-tdep.c: Fix indentation.
* language.c: Fix indentation.
* linespec.c: Fix indentation.
* linux-fork.c: Fix indentation.
* linux-nat.c: Fix indentation.
* linux-tdep.c: Fix indentation.
* linux-thread-db.c: Fix indentation.
* lm32-tdep.c: Fix indentation.
* m2-lang.c: Fix indentation.
* m2-typeprint.c: Fix indentation.
* m2-valprint.c: Fix indentation.
* m32c-tdep.c: Fix indentation.
* m32r-linux-tdep.c: Fix indentation.
* m32r-tdep.c: Fix indentation.
* m68hc11-tdep.c: Fix indentation.
* m68k-bsd-nat.c: Fix indentation.
* m68k-linux-nat.c: Fix indentation.
* m68k-linux-tdep.c: Fix indentation.
* m68k-tdep.c: Fix indentation.
* machoread.c: Fix indentation.
* macrocmd.c: Fix indentation.
* macroexp.c: Fix indentation.
* macroscope.c: Fix indentation.
* macrotab.c: Fix indentation.
* macrotab.h: Fix indentation.
* main.c: Fix indentation.
* mdebugread.c: Fix indentation.
* mep-tdep.c: Fix indentation.
* mi/mi-cmd-catch.c: Fix indentation.
* mi/mi-cmd-disas.c: Fix indentation.
* mi/mi-cmd-env.c: Fix indentation.
* mi/mi-cmd-stack.c: Fix indentation.
* mi/mi-cmd-var.c: Fix indentation.
* mi/mi-cmds.c: Fix indentation.
* mi/mi-main.c: Fix indentation.
* mi/mi-parse.c: Fix indentation.
* microblaze-tdep.c: Fix indentation.
* minidebug.c: Fix indentation.
* minsyms.c: Fix indentation.
* mips-linux-nat.c: Fix indentation.
* mips-linux-tdep.c: Fix indentation.
* mips-nbsd-tdep.c: Fix indentation.
* mips-tdep.c: Fix indentation.
* mn10300-linux-tdep.c: Fix indentation.
* mn10300-tdep.c: Fix indentation.
* moxie-tdep.c: Fix indentation.
* msp430-tdep.c: Fix indentation.
* namespace.h: Fix indentation.
* nat/fork-inferior.c: Fix indentation.
* nat/gdb_ptrace.h: Fix indentation.
* nat/linux-namespaces.c: Fix indentation.
* nat/linux-osdata.c: Fix indentation.
* nat/netbsd-nat.c: Fix indentation.
* nat/x86-dregs.c: Fix indentation.
* nbsd-nat.c: Fix indentation.
* nbsd-tdep.c: Fix indentation.
* nios2-linux-tdep.c: Fix indentation.
* nios2-tdep.c: Fix indentation.
* nto-procfs.c: Fix indentation.
* nto-tdep.c: Fix indentation.
* objfiles.c: Fix indentation.
* objfiles.h: Fix indentation.
* opencl-lang.c: Fix indentation.
* or1k-tdep.c: Fix indentation.
* osabi.c: Fix indentation.
* osabi.h: Fix indentation.
* osdata.c: Fix indentation.
* p-lang.c: Fix indentation.
* p-typeprint.c: Fix indentation.
* p-valprint.c: Fix indentation.
* parse.c: Fix indentation.
* ppc-linux-nat.c: Fix indentation.
* ppc-linux-tdep.c: Fix indentation.
* ppc-nbsd-nat.c: Fix indentation.
* ppc-nbsd-tdep.c: Fix indentation.
* ppc-obsd-nat.c: Fix indentation.
* ppc-ravenscar-thread.c: Fix indentation.
* ppc-sysv-tdep.c: Fix indentation.
* ppc64-tdep.c: Fix indentation.
* printcmd.c: Fix indentation.
* proc-api.c: Fix indentation.
* producer.c: Fix indentation.
* producer.h: Fix indentation.
* prologue-value.c: Fix indentation.
* prologue-value.h: Fix indentation.
* psymtab.c: Fix indentation.
* python/py-arch.c: Fix indentation.
* python/py-bpevent.c: Fix indentation.
* python/py-event.c: Fix indentation.
* python/py-event.h: Fix indentation.
* python/py-finishbreakpoint.c: Fix indentation.
* python/py-frame.c: Fix indentation.
* python/py-framefilter.c: Fix indentation.
* python/py-inferior.c: Fix indentation.
* python/py-infthread.c: Fix indentation.
* python/py-objfile.c: Fix indentation.
* python/py-prettyprint.c: Fix indentation.
* python/py-registers.c: Fix indentation.
* python/py-signalevent.c: Fix indentation.
* python/py-stopevent.c: Fix indentation.
* python/py-stopevent.h: Fix indentation.
* python/py-threadevent.c: Fix indentation.
* python/py-tui.c: Fix indentation.
* python/py-unwind.c: Fix indentation.
* python/py-value.c: Fix indentation.
* python/py-xmethods.c: Fix indentation.
* python/python-internal.h: Fix indentation.
* python/python.c: Fix indentation.
* ravenscar-thread.c: Fix indentation.
* record-btrace.c: Fix indentation.
* record-full.c: Fix indentation.
* record.c: Fix indentation.
* reggroups.c: Fix indentation.
* regset.h: Fix indentation.
* remote-fileio.c: Fix indentation.
* remote.c: Fix indentation.
* reverse.c: Fix indentation.
* riscv-linux-tdep.c: Fix indentation.
* riscv-ravenscar-thread.c: Fix indentation.
* riscv-tdep.c: Fix indentation.
* rl78-tdep.c: Fix indentation.
* rs6000-aix-tdep.c: Fix indentation.
* rs6000-lynx178-tdep.c: Fix indentation.
* rs6000-nat.c: Fix indentation.
* rs6000-tdep.c: Fix indentation.
* rust-lang.c: Fix indentation.
* rx-tdep.c: Fix indentation.
* s12z-tdep.c: Fix indentation.
* s390-linux-tdep.c: Fix indentation.
* score-tdep.c: Fix indentation.
* ser-base.c: Fix indentation.
* ser-mingw.c: Fix indentation.
* ser-uds.c: Fix indentation.
* ser-unix.c: Fix indentation.
* serial.c: Fix indentation.
* sh-linux-tdep.c: Fix indentation.
* sh-nbsd-tdep.c: Fix indentation.
* sh-tdep.c: Fix indentation.
* skip.c: Fix indentation.
* sol-thread.c: Fix indentation.
* solib-aix.c: Fix indentation.
* solib-darwin.c: Fix indentation.
* solib-frv.c: Fix indentation.
* solib-svr4.c: Fix indentation.
* solib.c: Fix indentation.
* source.c: Fix indentation.
* sparc-linux-tdep.c: Fix indentation.
* sparc-nbsd-tdep.c: Fix indentation.
* sparc-obsd-tdep.c: Fix indentation.
* sparc-ravenscar-thread.c: Fix indentation.
* sparc-tdep.c: Fix indentation.
* sparc64-linux-tdep.c: Fix indentation.
* sparc64-nbsd-tdep.c: Fix indentation.
* sparc64-obsd-tdep.c: Fix indentation.
* sparc64-tdep.c: Fix indentation.
* stabsread.c: Fix indentation.
* stack.c: Fix indentation.
* stap-probe.c: Fix indentation.
* stubs/ia64vms-stub.c: Fix indentation.
* stubs/m32r-stub.c: Fix indentation.
* stubs/m68k-stub.c: Fix indentation.
* stubs/sh-stub.c: Fix indentation.
* stubs/sparc-stub.c: Fix indentation.
* symfile-mem.c: Fix indentation.
* symfile.c: Fix indentation.
* symfile.h: Fix indentation.
* symmisc.c: Fix indentation.
* symtab.c: Fix indentation.
* symtab.h: Fix indentation.
* target-float.c: Fix indentation.
* target.c: Fix indentation.
* target.h: Fix indentation.
* tic6x-tdep.c: Fix indentation.
* tilegx-linux-tdep.c: Fix indentation.
* tilegx-tdep.c: Fix indentation.
* top.c: Fix indentation.
* tracefile-tfile.c: Fix indentation.
* tracepoint.c: Fix indentation.
* tui/tui-disasm.c: Fix indentation.
* tui/tui-io.c: Fix indentation.
* tui/tui-regs.c: Fix indentation.
* tui/tui-stack.c: Fix indentation.
* tui/tui-win.c: Fix indentation.
* tui/tui-winsource.c: Fix indentation.
* tui/tui.c: Fix indentation.
* typeprint.c: Fix indentation.
* ui-out.h: Fix indentation.
* unittests/copy_bitwise-selftests.c: Fix indentation.
* unittests/memory-map-selftests.c: Fix indentation.
* utils.c: Fix indentation.
* v850-tdep.c: Fix indentation.
* valarith.c: Fix indentation.
* valops.c: Fix indentation.
* valprint.c: Fix indentation.
* valprint.h: Fix indentation.
* value.c: Fix indentation.
* value.h: Fix indentation.
* varobj.c: Fix indentation.
* vax-tdep.c: Fix indentation.
* windows-nat.c: Fix indentation.
* windows-tdep.c: Fix indentation.
* xcoffread.c: Fix indentation.
* xml-syscall.c: Fix indentation.
* xml-tdesc.c: Fix indentation.
* xstormy16-tdep.c: Fix indentation.
* xtensa-config.c: Fix indentation.
* xtensa-linux-nat.c: Fix indentation.
* xtensa-linux-tdep.c: Fix indentation.
* xtensa-tdep.c: Fix indentation.
gdbserver/ChangeLog:
* ax.cc: Fix indentation.
* dll.cc: Fix indentation.
* inferiors.h: Fix indentation.
* linux-low.cc: Fix indentation.
* linux-nios2-low.cc: Fix indentation.
* linux-ppc-ipa.cc: Fix indentation.
* linux-ppc-low.cc: Fix indentation.
* linux-x86-low.cc: Fix indentation.
* linux-xtensa-low.cc: Fix indentation.
* regcache.cc: Fix indentation.
* server.cc: Fix indentation.
* tracepoint.cc: Fix indentation.
gdbsupport/ChangeLog:
* common-exceptions.h: Fix indentation.
* event-loop.cc: Fix indentation.
* fileio.cc: Fix indentation.
* filestuff.cc: Fix indentation.
* gdb-dlfcn.cc: Fix indentation.
* gdb_string_view.h: Fix indentation.
* job-control.cc: Fix indentation.
* signals.cc: Fix indentation.
Change-Id: I4bad7ae6be0fbe14168b8ebafb98ffe14964a695
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This changes TARGET_WNOHANG to be a member of an enum, rather than a
define, and also adds a DEF_ENUM_FLAGS_TYPE for this type. Then, it
changes target_wait and the various target wait methods to use this
type rather than "int".
This didn't catch any bugs, but it seems like a decent cleanup
nevertheless.
I did not change deprecated_target_wait_hook, since that's only used
out-of-tree (by Insight), and there didn't seem to be a need.
I can't build some of these targets, so I modified them on a
best-effort basis. I don't think this patch should go in before the
release branch is made.
gdb/ChangeLog
2020-09-18 Tom Tromey <tromey@adacore.com>
* windows-nat.c (struct windows_nat_target) <wait>: Update.
(windows_nat_target::wait): Update.
* target/wait.h (enum target_wait_flag): New. Use
DEF_ENUM_FLAGS_TYPE.
* target/target.h (target_wait): Change type of options.
* target.h (target_options_to_string, default_target_wait):
Update.
(struct target_ops) <wait>: Change type of options.
* target.c (target_wait, default_target_wait, do_option): Change
type of "options".
(target_options_to_string): Likewise.
* target-delegates.c: Rebuild.
* target-debug.h (target_debug_print_target_wait_flags): Rename
from target_debug_print_options.
* sol-thread.c (class sol_thread_target) <wait>: Update.
(sol_thread_target::wait): Update.
* rs6000-nat.c (class rs6000_nat_target) <wait>: Update.
(rs6000_nat_target::wait): Update.
* remote.c (class remote_target) <wait, wait_ns, wait_as>:
Update.
(remote_target::wait_ns, remote_target::wait_as): Change type of
"options".
(remote_target::wait): Update.
* remote-sim.c (struct gdbsim_target) <wait>: Update.
(gdbsim_target::wait): Update.
* record-full.c (class record_full_base_target) <wait>: Update.
(record_full_wait_1): Change type of "options".
(record_full_base_target::wait): Update.
* record-btrace.c (class record_btrace_target) <wait>: Update.
(record_btrace_target::wait): Update.
* ravenscar-thread.c (struct ravenscar_thread_target) <wait>:
Update.
(ravenscar_thread_target::wait): Update.
* procfs.c (class procfs_target) <wait>: Update.
(procfs_target::wait): Update.
* obsd-nat.h (class obsd_nat_target) <wait>: Update.
* obsd-nat.c (obsd_nat_target::wait): Update.
* nto-procfs.c (struct nto_procfs_target) <wait>: Update.
(nto_procfs_target::wait): Update.
* nbsd-nat.h (struct nbsd_nat_target) <wait>: Update.
* nbsd-nat.c (nbsd_wait): Change type of "options".
(nbsd_nat_target::wait): Update.
* linux-thread-db.c (class thread_db_target) <wait>: Update.
(thread_db_target::wait): Update.
* linux-nat.h (class linux_nat_target) <wait>: Update.
* linux-nat.c (linux_nat_target::wait): Update.
(linux_nat_wait_1): Update.
* infrun.c (do_target_wait_1, do_target_wait): Change type of
"options".
* inf-ptrace.h (struct inf_ptrace_target) <wait>: Update.
* inf-ptrace.c (inf_ptrace_target::wait): Update.
* go32-nat.c (struct go32_nat_target) <wait>: Update.
(go32_nat_target::wait): Update.
* gnu-nat.h (struct gnu_nat_target) <wait>: Update.
* gnu-nat.c (gnu_nat_target::wait): Update.
* fbsd-nat.h (class fbsd_nat_target) <wait>: Update.
* fbsd-nat.c (fbsd_nat_target::wait): Update.
* darwin-nat.h (class darwin_nat_target) <wait>: Update.
* darwin-nat.c (darwin_nat_target::wait): Update.
* bsd-uthread.c (struct bsd_uthread_target) <wait>: Update.
(bsd_uthread_target::wait): Update.
* aix-thread.c (class aix_thread_target) <wait>: Update.
(aix_thread_target::wait): Update.
gdbserver/ChangeLog
2020-09-18 Tom Tromey <tromey@adacore.com>
* netbsd-low.h (class netbsd_process_target) <wait>: Update.
* netbsd-low.cc (netbsd_waitpid, netbsd_wait)
(netbsd_process_target::wait): Change type of target_options.
* win32-low.h (class win32_process_target) <wait>: Update.
* win32-low.cc (win32_process_target::wait): Update.
* target.h (class process_stratum_target) <wait>: Update.
(mywait): Update.
* target.cc (mywait, target_wait): Change type of "options".
* linux-low.h (class linux_process_target) <wait, wait_1>:
Update.
* linux-low.cc (linux_process_target::wait)
(linux_process_target::wait_1): Update.
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FreeBSD kernels have reported exec events via the PL_FLAG_EXEC flag
since 8.2 release. The most recent release that did not support this
flag is 7.4 released in November of 2011.
Note that the FreeBSD native target already assumed that PL_FLAG_SCE
and PL_FLAG_SCX were always supported on systems supporting
PT_LWPINFO, but those flags were added at the same time as
PL_FLAG_EXEC. Building the native target on a system without
PL_FLAG_EXEC would have failed to build before this change already as
a result.
gdb/ChangeLog:
* fbsd-nat.c (fbsd_nat_target::wait): Always check for
PL_FLAG_EXEC.
(fbsd_nat_target::insert_exec_catchpoint)
(fbsd_nat_target::remove_exec_catchpoint): Always define.
* fbsd-nat.h (fbsd_nat_target::insert_exec_catchpoint)
(fbsd_nat_target::remove_exec_catchpoint): Always declare.
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FreeBSD systems have provided these functions in libutil since 7.1
release. The most recent release without support is 6.4 released in
November of 2008.
This also requires libutil-freebsd on GNU/kFreeBSD systems. I assume
that those systems have supported kinfo_get_file and kinfo_get_vmmap
over a similar timeframe.
gdb/ChangeLog:
* configure.ac: Remove check for kinfo_getvmmap().
* configure, config.in: Regenerate.
* fbsd-nat.c (fbsd_read_mapping): Remove
(fbsd_nat_target::find_memory_regions): Remove the procfs version.
(fbsd_nat_target::info_proc): Assume kinfo_getfile() and
kinfo_get_vmmap() are always present.
gdbsupport/ChangeLog:
* common.m4 (GDB_AC_COMMON): Refactor checks for kinfo_getfile().
* configure, config.in: Regenerate.
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The current layout of siginfo_t and support for fetching it has been
included in FreeBSD kernels since 7.0 release. The most recent
release without support is 6.4 released in November of 2008.
gdb/ChangeLog:
* fbsd-nat.c: Always include support for
TARGET_OBJECT_SIGNAL_INFO.
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FreeBSD kernels have included this sysctl since 6.0 release. The most
recent release without support is 5.5 which was released in May of
2006.
Both the sysctl and the /proc/<pid>/exe file call the same function in
the kernel to obtain the path (vn_fullpath). If the sysctl fails, the
readlink call will also fail, so there is no need to keep the readlink
fallback.
gdb/ChangeLog:
* fbsd-nat.c (fbsd_nat_target::pid_to_exec_file): Always use
sysctl and remove procfs fallback.
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FreeBSD kernels have included support for this since 5.0 release.
The most recent release without support is 4.11 which was released
in January of 2005.
gdb/ChangeLog:
* fbsd-nat.c: Assume PT_LWPINFO is always defined.
* fbsd-nat.h: Likewise.
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gdb/ChangeLog:
* fbsd-nat.h (fbsd_nat_target::supports_multi_process): New
declaration.
* fbsd-nat.c (fbsd_nat_target::supports_multi_process): New
function.
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