Bananymous
5bfeb9f3ca
Kernel: Rewrite all read/write functions to use BAN::ByteSpan
...
This allows us to not work with raw pointers and use sized containers
for reading and writing.
2023-10-24 11:56:00 +03:00
Bananymous
773dcdd3a2
Kernel: Check whether ELF address space can be loaded
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Before reserving address space in SYS_EXEC verify that ELF address
space is actually loadable. For example when trying to execute the
kernel binary in userspace, binarys address space would overlap with
current kernel address space. Now kernel won't crash anymore and
will just send SIGKILL to the process calling exec*().
2023-10-12 22:59:36 +03:00
797ca65c66
Kernel: Add physical memory info to /proc/{pid}/meminfo
2023-09-30 22:11:45 +03:00
f88ad7efcd
Kernel: All process' memory areas can report their virtual mem usage
2023-09-30 21:15:46 +03:00
7e9e4c47ae
LibELF: Optimize LoadableELF::clone() memory usage
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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
be13120554
LibELF: Implement new ELF structure
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This structure is used for demand pagable execution. It handles all
memory allocation and file reading.
2023-09-29 01:58:03 +03:00
9943edad5a
LibELF: Add types for native executable
2023-09-29 01:56:57 +03:00
720bc418a6
All: Clear lines with only whitspace in them
2023-09-10 00:31:42 +03:00
e8a73f9696
BuildSystem: use -a with rsync
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This allows cmake to not rebuild whole project every time
2023-08-28 11:38:17 +03:00
b05cf9ef09
BuildSystem: Base sysroot is now distributed as a tar ball
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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
10544db52e
LibELF: We use BAN::Vector<uint8_t> as elf storage
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This is made possible by the dynamic kmalloc
2023-06-18 23:29:23 +03:00
c62e820bcf
Kernel: Add basic Credentials for the system
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Now filesystem access/open, etc confirm that you have access for rwxs
2023-06-11 20:06:06 +03:00
8af390e0f6
Kernel: Big commit. Rewrite ELF loading code
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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
4a4a3bf184
Kernel/LibC: move file offset back to kernel
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This makes keeping track of offsets easier and more proper
2023-05-26 22:31:21 +03:00
53f4b5a9da
LibC: add function declarations to sys/stat.h
2023-05-11 15:11:33 +03:00
1cf7ef3de6
Kernel: Remove offset from OpenFileDescriptor
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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
163d2e4ba8
LibELF: Add 32 bit support
2023-04-22 19:00:18 +03:00
4ae1332a43
LibELF: Header printing can now be turned off
2023-04-22 15:34:09 +03:00
10c884bba4
LibELF: ELF now has methods for accessing more attributes
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You can now access the program headers and the memory itself
2023-04-22 15:31:05 +03:00
a993d997ad
LibELF: remove unused file
2023-04-19 17:32:12 +03:00
7bd4593748
Kernel: Process is not reference counted any more
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This was not necessary and it made things needlessly complicated
2023-04-19 00:34:18 +03:00
079df39ca8
LibELF: Start implementing elf library
2023-04-18 10:18:15 +03:00
Bananymous
Bananymous