Bananymous
dfe5a2d665
All: Cleanup all files
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Add newline to end of files and remove whitespace from end of lines
2024-01-24 15:53:38 +02:00
Bananymous
24b71d1170
Kernel: Appreciate setuid and setgid bits executables
2023-12-06 18:14:27 +02:00
Bananymous
2c2ee6636f
fixup
2023-11-13 21:39:48 +02:00
Bananymous
3beebd721f
LibELF: Remove 2 32 bit types that don't exist
2023-11-13 21:39:39 +02:00
Bananymous
f6c312a6b3
BuildSystem: using sysroot doesn't need root privileges anymore!
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Sysroot is now created with fakeroot. This allows root access to be
only needed for disk image creation, since it uses loopback devices.
2023-11-04 17:50:43 +02:00
Bananymous
42772611ce
Kernel: Add fast page to page table
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Add "fast page" to KERNEL_OFFSET. This is always present in page
tables and only requires changing the page table entry to map. This
requires no interrupts since it should only be for very operations
like memcpy.
I used to map all temporary mappings to vaddr 0, but this is much
better. C++ standard always says that nullptr access is undefined
and this gets rid of it.
Fixed some bugs I found along the way
2023-10-30 19:02:09 +02:00
Bananymous
b5d873dfae
Kernel/LibELF: Map pages always as RW so kernel can write to them
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Kernel doesn't seem to require W permissions to a page without UEFI
so this had not been found earlier.
2023-10-30 12:14:12 +02:00
Bananymous
f3d9da9549
Kernel: Rewrite all read/write functions to use BAN::ByteSpan
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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
9a6cc0dc2d
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
5ee3506474
Kernel: Add physical memory info to /proc/{pid}/meminfo
2023-09-30 22:11:45 +03:00
56bb419884
Kernel: All process' memory areas can report their virtual mem usage
2023-09-30 21:15:46 +03:00
06af9f3187
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
8357dd7b3d
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
5bdf7d313f
LibELF: Add types for native executable
2023-09-29 01:56:57 +03:00
921d95d18f
All: Clear lines with only whitspace in them
2023-09-10 00:31:42 +03:00
8032824054
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
80e7a89f67
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
275a730485
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
c7ec19c25c
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
801025ad7b
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
80d9f6131b
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
729ff267d7
LibC: add function declarations to sys/stat.h
2023-05-11 15:11:33 +03:00
ff2e2937a5
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
850ff93940
LibELF: Add 32 bit support
2023-04-22 19:00:18 +03:00
ef0263e32d
LibELF: Header printing can now be turned off
2023-04-22 15:34:09 +03:00
4588e25d27
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
7d57d2fcfb
LibELF: remove unused file
2023-04-19 17:32:12 +03:00
d63716db96
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
998ae511a3
LibELF: Start implementing elf library
2023-04-18 10:18:15 +03:00
Bananymous
Bananymous