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18 Commits

Author SHA1 Message Date
Bananymous 7e9e4c47ae LibELF: Optimize LoadableELF::clone() memory usage 
We only clone mapped pages that have been marked as writeble.
Read/execute only pages will be exactly as in the file itself and
can be demand paged also :D
 2023-09-29 02:05:12 +03:00
Bananymous be13120554 LibELF: Implement new ELF structure 
This structure is used for demand pagable execution. It handles all
memory allocation and file reading.
 2023-09-29 01:58:03 +03:00
Bananymous 9943edad5a LibELF: Add types for native executable 2023-09-29 01:56:57 +03:00
Bananymous 720bc418a6 All: Clear lines with only whitspace in them 2023-09-10 00:31:42 +03:00
Bananymous e8a73f9696 BuildSystem: use -a with rsync 
This allows cmake to not rebuild whole project every time
 2023-08-28 11:38:17 +03:00
Bananymous b05cf9ef09 BuildSystem: Base sysroot is now distributed as a tar ball 
This allows file and directory permissions work as intended.

cmake is now filled with 'sudo' but with sudo timeout this should be
fine.
 2023-08-23 10:38:21 +03:00
Bananymous 10544db52e LibELF: We use BAN::Vector<uint8_t> as elf storage 
This is made possible by the dynamic kmalloc
 2023-06-18 23:29:23 +03:00
Bananymous c62e820bcf Kernel: Add basic Credentials for the system 
Now filesystem access/open, etc confirm that you have access for rwxs
 2023-06-11 20:06:06 +03:00
Bananymous 8af390e0f6 Kernel: Big commit. Rewrite ELF loading code 
We now load ELF files to VirtualRanges instead of using kmalloc.
We have only a fixed 1 MiB kmalloc for big allocations and this
allows loading files even when they don't fit in there.

This caused me to rewrite the whole ELF loading process since the
loaded ELF is not in memory mapped by every process.

Virtual ranges allow you to zero out the memory and to copy into
them from arbitary byte buffers.
 2023-06-09 00:37:43 +03:00
Bananymous 4a4a3bf184 Kernel/LibC: move file offset back to kernel 
This makes keeping track of offsets easier and more proper
 2023-05-26 22:31:21 +03:00
Bananymous 53f4b5a9da LibC: add function declarations to sys/stat.h 2023-05-11 15:11:33 +03:00
Bananymous 1cf7ef3de6 Kernel: Remove offset from OpenFileDescriptor 
This is now handled on the libc side. There might be reasons to
have it in kernel side, but for simplicity's sake I'm moving it
to libc for now :)
 2023-05-09 20:31:22 +03:00
Bananymous 163d2e4ba8 LibELF: Add 32 bit support 2023-04-22 19:00:18 +03:00
Bananymous 4ae1332a43 LibELF: Header printing can now be turned off 2023-04-22 15:34:09 +03:00
Bananymous 10c884bba4 LibELF: ELF now has methods for accessing more attributes 
You can now access the program headers and the memory itself
 2023-04-22 15:31:05 +03:00
Bananymous a993d997ad LibELF: remove unused file 2023-04-19 17:32:12 +03:00
Bananymous 7bd4593748 Kernel: Process is not reference counted any more 
This was not necessary and it made things needlessly complicated
 2023-04-19 00:34:18 +03:00
Bananymous 079df39ca8 LibELF: Start implementing elf library 2023-04-18 10:18:15 +03:00