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This changes browsing through disassembled functions in Profiler from a
painfully sluggish experience into quite a swift one. It's especially
true for profiling the kernel, as it has more than 10 megabytes of DWARF
data to churn through.
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/boot/Kernel.debug only contains the symbol table and DWARF debug
information, and has its `.text` and other PT_LOAD segments stripped
out. When we try to parse its data as instructions, we get a crash from
within LibX86.
We now load the actual /boot/Kernel binary when we want to disassemble
kernel functions.
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There is no point in keeping around a separate MappedFile object for
/boot/Kernel.debug for each DisassemblyModel we create and re-parsing
the kernel image multiple times. This will significantly speed up
browsing through profile entries from the kernel in disassembly view.
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This also required converting URLSearchParams::for_each and the callback
function it invokes to ThrowCompletionOr. With this, the ReturnType enum
used by WrapperGenerator is removed as all callers would be using
ReturnType::Completion.
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For file copying, when there is a file with the same name in the
destination directory, the file will be automatically renamed to
"file-2.txt", for example. This change expands that special-case
handling to file moving.
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This is much simpler and more embeddable version than libGFX one.
Solely purpose is to draw initial boot logo on screen before kernel
is even booted.
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It initializes framebuffer and exposes access to its properties.
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The goal was to reduce common setup of messages. Changes:
* MailBox turned into singleton to follow existing patterns
* Removed device specific messages from MailBox requiring
clients to know the details instead
* Created base Message class which clients should deriver from
It really simplify the usage for more complicated message queues
like framebuffer setup - see followup commits.
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Added dbgln() and warnln() debug functions to help bootstraping.
Eventually they are going to be replaced by AK/Format.h implementation.
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Before this patch less would query the terminal geometry only at
startup and use this information to render the file when
appropriate. If the terminal is resized then the output is broken in
several different ways because of this.
This patch adds a SIGWINCH signal handler receive notification any
time the terminal is resized. This signal handler just sets a flag to
notify the main loop that a resize has occurred.
The main loop of the program just calls get_key_sequence() to get
input from the user, interpreting keystrokes as commands like scroll
up or down. The get_key_sequence() function has been changed to return
Optional<String>, so it either returns a keystroke from the user or it
returns nothing as an empty Optional.
While the user is not pressing any keys on the keyboard, the program
is blocking on a read() system call in get_key_sequence(). When
SIGWINCH is received, this read() will return with -1 and errno is set
to EINTR since the system call was interrupted by the signal. When
this happens we just return an empty Optional.
The mainloop now checks to see if a resize has been requested by
checking the flag, and if it has it performs a resize.
init() now just calls resize() since the required logic is the same.
Setters for m_filename and m_prompt are removed because these are now
just initialized by the constructor, as they never change for the life
of the program.
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When I added this code in 1472f6d, I forgot to add tests for it. That's
why I didn't realize that the values were appended to the wrong
FormatBuilder object, so an empty string was returned instead of the
expected "nan"/"inf". This made debugging some FPU issues with the
ScummVM port significantly more difficult.
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`CMAKE_INSTALL_PREFIX` is supposed to be the in-system installation
path. The sysroot path on the host doesn't belong there, since other
applications will duplicate that path when applying their respective
sysroot.
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This FIXME does not seem to apply anymore. Yes, symbolic links in all
filesystems appear to be slightly broken, but that has nothing to do
with File::absolute_path. Let's remove the wrong FIXME instead of adding
to the confusion.
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Found due to smelly code in InodeFile::absolute_path.
In particular, this replaces the following misleading methods:
File::absolute_path
This method *never* returns an actual path, and if called on an
InodeFile (which is impossible), it would VERIFY_NOT_REACHED().
OpenFileDescription::try_serialize_absolute_path
OpenFileDescription::absolute_path
These methods do not guarantee to return an actual path (just like the
other method), and just like Custody::absolute_path they do not
guarantee accuracy. In particular, just renaming the method made a
TOCTOU bug obvious.
The new method signatures use KResultOr, just like
try_serialize_absolute_path() already did.
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This commit makes the Shell check for errors after a node is run(), and
prevents further execution by unwinding until the error is cleared.
Fixes #10649.
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We defined it in `stdlib.h` but forgot to implement it.
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This patch is no longer required after this PR fixes the x86_64 PLT
trampoline:
https://github.com/SerenityOS/serenity/pull/10711
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Save and restore XMM registers so userspace programs don't
randomly lose values from calls. This fixes a crash in ScummVM.
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This rule appears to produce a lot of noise, most of them look like
false positives (400+). Lets suppress for now to try to move the signal
to noise ratio higher for PVS-Studio.
Reference: https://pvs-studio.com/en/docs/warnings/v1047/
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This is a normative change in the Temporal spec.
See: https://github.com/tc39/proposal-temporal/commit/19b693c
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This is a normative change in the Temporal spec.
See: https://github.com/tc39/proposal-temporal/commit/ec43be3
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