This makes out-of-tree linking possible. And at the same time, add a
CMakeToolchain.txt file that can be used to build arbitrary cmake-using
applications on Serenity by pointing to the CMAKE_TOOLCHAIN_FILE when
running cmake:
-DCMAKE_TOOLCHAIN_FILE=~/code/serenity/Toolchain/CMakeToolchain.txt
Based on the description I read, this syscall doesn't seem completely
reasonable, but let's at least return a number that is likely to change
between invocations in case somebody depends on that happening.
Might be an idea to add a minimum size constrain in window server
instead, since it knows the exact dimensions? But this is a simple fix
that seems to do the job.
It makes sense to keep this consistent between applications, and the
purpose of the string is not immediately obvious from an API perspective.
If we need to make it configurable later, that can come from a setter.
Also introduce more seek modes on CIODevice, and an out param to find
the current position inside the file -- this means less syscalls (and
less potential races) than requesting it through a separate pos()
accessor or something.
These functions were doing exactly the same thing for range allocation, so
share that code in an allocate_range() helper.
Region allocation will now also fail if range allocation fails, which means
that mmap() can actually fail without falling apart. Exciting times!
This replaces the previous virtual address allocator which was basically
just "m_next_address += size;"
With this in place, virtual addresses can get reused, which cuts down on
the number of page tables created. When we implement ASLR some day, we'll
probably have to do page table deallocation, but for now page tables are
only deallocated once the process dies.
We were allowing initiation of resize from the bottom titlebar edge
since everything inside the window frame that's not either inside the
title bar, or inside the window content, is considered the border.
* Added CProcessStatisticsReader to avoid having to parse /proc/all
* Took @awesomekling's feedbacks into account
* Fixed indentation and replaced tabs by spaces
Stash away the ELFLoader used to load an executable in Process so we can use
it for symbolicating userspace addresses later on. This will make debugging
userspace programs a lot nicer. :^)
This is in keeping with how putenv should function. It does mean that
the shell's export command now leaks, but that's not a difficult fix.
Contributes to #29.
