We have a new, improved string type coming up in AK (OOM aware, no null
state), and while it's going to use UTF-8, the name UTF8String is a
mouthful - so let's free up the String name by renaming the existing
class.
Making the old one have an annoying name will hopefully also help with
quick adoption :^)
When printing a backtrace, each library's base address is found by
walking through all memory regions in the coredump, and selecting the
address of the first region whose name begins with the library's soname.
This is done to support the Clang toolchain, where .text is not at
offset 0.
However, because the libraries loaded by the emulated process used the
same names, we could not distinguish those with the ones used by
UserspaceEmulator, so the backtrace ended up being garbage.
Using the libraries mapped by UE would not be a sufficient, as the
running application could ask for other libraries too, and doing away
with setting names would make debugging issues within UE code more
difficult.
... segment
This happens with binaries build with Clang or with a custom linker
script. If this is the case, offsets should be calculated not from the
base address of `.text`, but from the first section loaded for the
library.
This commit moves all UserspaceEmulator symbolication into a common
helper function and fixes a FIXME.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.
See: https://spdx.dev/resources/use/#identifiers
This was done with the `ambr` search and replace tool.
ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
This patch brings Kernel::RangeAllocator to UserspaceEmulator in a
slightly simplified form.
It supports the basic three allocation types needed by virt$mmap():
allocate_anywhere, allocate_specific, and allocate_randomized.
Porting virt$mmap() and virt$munmap() to use the allocator makes
UE work correctly once again. :^)
