Process-separated symbolication was cute, but ultimately the threat
model is kinda silly. We're already *running* the binary, but we're
afraid to parse its symbol table? :^)
This commit makes SystemMonitor and bt do symbolication in-process.
SymbolServer and the symbol user will be removed separately.
When the default build location was moved from /Build to the new
architecture specific directory, /Build/i686, this code broke.
All file names are now path relative one additional level up.
So continue the hack, and introduce another dummy directory to
make the relative paths resolve correctly.
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 *
Since this is useful in many places, let's have a common implementation
of walking the stack of a given thread via /proc and symbolicating each
of the frames.
The /boot directory is only accessible to root by default, but anyone
wanting access to kernel symbols for development can get them by making
/boot/Kernel accessible to the "symbol" user.
Usage: bt <PID>
This program will print a symbolicated backtrace for the main thread of
the process with the given PID. It uses SymbolServer for the
symbolication.
There's a lot of room for improvement in this command, but it is pretty
neat already. :^)
