Tests: Improve munmap-test
We now Unmap page aligned and check if the regions were really unmappped etc.
Tests: Cleanup Munmap-test
added a cleanup and removed a useless cast
When multiple images are dragged and dropped onto the image widget,
QuickShow will use LibDesktop::Launcher to launch a new instance
of QuickShow for each item, rather than spawn a child QuickShow
process for each item with posix_spawn.
This allows `proc` and `exec` pledges to be removed :^)
Prevents discrete values from being skipped when using the mouse
wheel on SpinBoxes and proportional Sliders. Wheel delta can be
accelerated by holding Ctrl.
Otherwise `reposition_cursor()` will move the cursor one character too
far to the right, and since we don't redraw the entire buffer when
the character is inserted at the end, the mistake won't be immediately
fixed by a complete redraw.
Fixes#5722
Old behavior: Crash due to VERIFY, unless we're completely and entirely out of
memory (m_available_ranges being empty), in which case it would return -ENOMEM.
New behavior: Return ENOMEM (and don't crash). In the case of nullptr,
also emit a helpful diagnostic.
Note that MAP_FIXED with nullptr is technically okay, but tends to be a sign
that something went wrong.
Also, this should improve mmap performance marginally, as it pulls the check out
of a loop that does not modify any parts of the check.
UE is now self-hosting! Fixes#5709.
However, this still needs some love: "ue UserspaceEmulator true" spits out tons
of error messages, probably false-positives, and takes about 229 seconds to run.
Then again, true-in-ue-in-ue-in-Qemu is three levels of emulation, so no wonder
it takes a long time! :D
Since there is usually no correlation between guest memory-layout and UE memory-layout,
this option does not make any sense. Especially since we provide nullptr.
This was misleading. The spec just wants us to check a string matches
a string in the JavaScript MIME type essence list. It doesn't want us
to parse the string as a MIME type to then use its essence for the
check.
Renames "mime_type" to "string" to make this less misleading.
The auditing code always starts by checking if we're in one of the
ignored code ranges (malloc, free, realloc, syscall, etc.)
To reduce the number of checks needed, we can cache the bounds of
the LibC text segment. This allows us to fast-reject addresses that
cannot possibly be a LibC function.
Accesses in the header (or trailing padding) of a malloc block should
not be associated with any mallocation since only the chunk-sized slots
actually get returned by malloc.
Basically, allow address-to-chunk lookup to fail, and handle such
failures gracefully at call sites.
Fixes#5706.
