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Use the GNU LD option --no-dynamic-linker. This allows uncommenting some
code in the Kernel that gets upset if your ELF interpreter has its own
interpreter.
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Old font functionality has been moved into BitmapFont
and an abstract Font interface has been introduced to
faciliate further development of TTF font integration.
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Compared to version 10 this fixes a bunch of formatting issues, mostly
around structs/classes with attributes like [[gnu::packed]], and
incorrect insertion of spaces in parameter types ("T &"/"T &&").
I also removed a bunch of // clang-format off/on and FIXME comments that
are no longer relevant - on the other hand it tried to destroy a couple of
neatly formatted comments, so I had to add some as well.
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Loader.so is an actual executable, as well as the interpreter for dynamic
libraries. Currently launching Loader.so as a standalone executable results
in an obsucre crash as it tries to load itself over itself.
Now we at least print a helpful message saying that you're doing the wrong
thing and exit gracefully. In future we may wish to allow users to specify
additional options to learn more about what's going on during dynamic
linking, such as ld-linux.so.2 on Linux.
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When we have an abstract font class it makes no sense to keep
these methods in the Font class.
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This patchset makes ProtocolServer stream the downloads to its client
(LibProtocol), and as such changes the download API; a possible
download lifecycle could be as such:
notation = client->server:'>', server->client:'<', pipe activity:'*'
```
> StartDownload(GET, url, headers, {})
< Response(0, fd 8)
* {data, 1024b}
< HeadersBecameAvailable(0, response_headers, 200)
< DownloadProgress(0, 4K, 1024)
* {data, 1024b}
* {data, 1024b}
< DownloadProgress(0, 4K, 2048)
* {data, 1024b}
< DownloadProgress(0, 4K, 1024)
< DownloadFinished(0, true, 4K)
```
Since managing the received file descriptor is a pain, LibProtocol
implements `Download::stream_into(OutputStream)`, which can be used to
stream the download into any given output stream (be it a file, or
memory, or writing stuff with a delay, etc.).
Also, as some of the users of this API require all the downloaded data
upfront, LibProtocol also implements `set_should_buffer_all_input()`,
which causes the download instance to buffer all the data until the
download is complete, and to call the `on_buffered_download_finish`
hook.
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Create macros for the byte swap operations one would expect to be in
endian.h or byteswap.h in AK/Endian.h. It's likely a similar/different
change will be needed for BSDs, but there's no github action for those
added to the project yet.
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This was a goofy kernel API where you could assign an icon_id (int) to
a process which referred to a global shbuf with a 16x16 icon bitmap
inside it.
Instead of this, programs that want to display a process icon now
retrieve it from the process executable instead.
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ByteBuffer is not null-terminated (anymore), this is another one of
those bugs.
Also use the new format functions while we're here.
Fixes #4558.
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Fixes #4530.
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This was a non-standard specifier alias for %02x. This patch replaces
all uses of it with new-style formatting functions instead.
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This commit gets rid of ELF::Loader entirely since its very ambiguous
purpose was actually to load executables for the kernel, and that is
now handled by the kernel itself.
This patch includes some drive-by cleanup in LibDebug and CrashDaemon
enabled by the fact that we no longer need to keep the ref-counted
ELF::Loader around.
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We now configure the gcc spec files to use a different crt files for
static & PIE binaries.
This relieves us from the need to explicitly specify the desired crt0
file in cmake scripts.
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Just showing the URL's path is confusing, that would show '/' for
something like foo://bar.
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open(1) was able to handle most URLs as well as paths, but not file://
URLs (which occur when dragging something from the output of ls, for
example). We have to create an URL from the user-supplied argument using
create_with_url_or_path(), check whether it's a file:// URL or not and
*then* use real_path_for() on the URL's path().
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This wasn't removed when fprintf was replaced by warnln.
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Also simplify the file copying logic a bit to avoid two syscalls
per file. We now create the file with the right mode right away
instead of creating it first, and then fchmod'ing it later.
Fixes #4479.
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POSIX allows the default streams (stdin, stdout and stderr) to be
macros, which means that on such systems (musl libc is one) building
Lagom will fail due to the File::std*() names.
Also fix any files that use these identifiers.
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This implements a number of changes related to time:
* If a HPET is present, it is now used only as a system timer, unless
the Local APIC timer is used (in which case the HPET timer will not
trigger any interrupts at all).
* If a HPET is present, the current time can now be as accurate as the
chip can be, independently from the system timer. We now query the
HPET main counter for the current time in CPU #0's system timer
interrupt, and use that as a base line. If a high precision time is
queried, that base line is used in combination with quering the HPET
timer directly, which should give a much more accurate time stamp at
the expense of more overhead. For faster time stamps, the more coarse
value based on the last interrupt will be returned. This also means
that any missed interrupts should not cause the time to drift.
* The default system interrupt rate is reduced to about 250 per second.
* Fix calculation of Thread CPU usage by using the amount of ticks they
used rather than the number of times a context switch happened.
* Implement CLOCK_REALTIME_COARSE and CLOCK_MONOTONIC_COARSE and use it
for most cases where precise timestamps are not needed.
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Problem:
- `(void)` simply casts the expression to void. This is understood to
indicate that it is ignored, but this is really a compiler trick to
get the compiler to not generate a warning.
Solution:
- Use the `[[maybe_unused]]` attribute to indicate the value is unused.
Note:
- Functions taking a `(void)` argument list have also been changed to
`()` because this is not needed and shows up in the same grep
command.
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This was another way to get a non-owning ByteBuffer wrapper.
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If 'path' is omitted, we create a link with the basename of whatever
the target is. This matches what other systems do.
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When loading dynamic objects, the emulator loads the interpreter,
generates an auxiliary vector and starts executing the loader.
Additionally, this commits also makes the MallocTracer and backtrace
symbolication work for dynamically loaded programs.
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The dynamic loader is now stable enough to be used everywhere in the
system - so this commit does just that.
No More .a Files, Long Live .so's!
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The dynamic loader exists as /usr/lib/Loader.so and is loaded by the
kernel when ET_DYN programs are executed.
The dynamic loader is responsible for loading the dependencies of the
main program, allocating TLS storage, preparing all loaded objects for
execution and finally jumping to the entry of the main program.
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It's ironic that `jp` currently refuses to parse its own output :^)
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