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voyage-au-centre-des-fichiers.git
11 months agoRemoved useless __attribute__((packed))s
Amelia Coutard [Sat, 2 Dec 2023 23:32:18 +0000 (00:32 +0100)]
Removed useless __attribute__((packed))s

11 months agoAdded (but didn't implement yet) the close syscall
Amelia Coutard [Sat, 2 Dec 2023 23:29:08 +0000 (00:29 +0100)]
Added (but didn't implement yet) the close syscall

11 months agoImplemented basic read/write of a virtual file corresponding to the serial port
Amelia Coutard [Mon, 27 Nov 2023 13:09:52 +0000 (14:09 +0100)]
Implemented basic read/write of a virtual file corresponding to the serial port

11 months agoGot ready to implement the first 4 syscalls, though, like, that's not done just yet
Amelia Coutard [Mon, 27 Nov 2023 00:15:34 +0000 (01:15 +0100)]
Got ready to implement the first 4 syscalls, though, like, that's not done just yet

11 months agoChanged the future API a bit. Also, changed the syscall handler a bit because 1)...
Amelia Coutard [Sun, 26 Nov 2023 23:53:46 +0000 (00:53 +0100)]
Changed the future API a bit. Also, changed the syscall handler a bit because 1) %rdx was broken and 2) I was actually probably never gonna need the second return register, because of that new API

11 months agoMade the build system work with guix (and my channel, which will be updated at some...
Amelia Coutard [Thu, 23 Nov 2023 08:58:39 +0000 (09:58 +0100)]
Made the build system work with guix (and my channel, which will be updated at some point to include this

15 months agoAdded printing of the framebuffer memory range
Amelia Coutard [Mon, 7 Aug 2023 01:30:05 +0000 (03:30 +0200)]
Added printing of the framebuffer memory range

15 months agoMade my life easier: removed infinite printing in test programs
Amelia Coutard [Mon, 7 Aug 2023 01:21:30 +0000 (03:21 +0200)]
Made my life easier: removed infinite printing in test programs

15 months agoAdded -Wfatal-errors, because it's easier to use
Amelia Coutard [Sun, 6 Aug 2023 21:35:15 +0000 (23:35 +0200)]
Added -Wfatal-errors, because it's easier to use

15 months agoAdded support for multiple startup modules, and a second module to test yield better
Amelia Coutard [Sun, 6 Aug 2023 01:54:28 +0000 (03:54 +0200)]
Added support for multiple startup modules, and a second module to test yield better

15 months agoFixed missing value init in elf loader
Amelia Coutard [Sun, 6 Aug 2023 01:53:57 +0000 (03:53 +0200)]
Fixed missing value init in elf loader

15 months agoFixed STAR register, and %cr3 on yield
Amelia Coutard [Sun, 6 Aug 2023 01:52:05 +0000 (03:52 +0200)]
Fixed STAR register, and %cr3 on yield

15 months agoImplemented yield syscall and added uses of it. Not tested well yet
Amelia Coutard [Sun, 6 Aug 2023 00:35:21 +0000 (02:35 +0200)]
Implemented yield syscall and added uses of it. Not tested well yet

15 months agoRemoved println syscall
Amelia Coutard [Sat, 5 Aug 2023 23:22:01 +0000 (01:22 +0200)]
Removed println syscall

15 months agoFixed memory laundering and an assert
Amelia Coutard [Sat, 5 Aug 2023 00:43:31 +0000 (02:43 +0200)]
Fixed memory laundering and an assert

15 months agoImplemented ports and processes better.
Amelia Coutard [Sat, 5 Aug 2023 00:22:22 +0000 (02:22 +0200)]
Implemented ports and processes better.

15 months agoFixed code and doc a tiny bit
Amelia Coutard [Tue, 1 Aug 2023 22:21:36 +0000 (00:21 +0200)]
Fixed code and doc a tiny bit

15 months agoChanged processes to save all (general-purpose) registers on syscalls (except for...
Amelia Coutard [Tue, 1 Aug 2023 04:00:06 +0000 (06:00 +0200)]
Changed processes to save all (general-purpose) registers on syscalls (except for r11 and rcx, of course). Will keep working on them later

15 months agoChanged doc a bit
Amelia Coutard [Tue, 1 Aug 2023 02:55:19 +0000 (04:55 +0200)]
Changed doc a bit

16 months agoChanged IPC method again. Gonna start implementation now
Amelia Coutard [Thu, 6 Jul 2023 18:45:33 +0000 (20:45 +0200)]
Changed IPC method again. Gonna start implementation now

17 months agoRemoved dependency on correct user stack for syscall. Simplified code slightly as...
Amelia Coutard [Sat, 17 Jun 2023 01:54:09 +0000 (03:54 +0200)]
Removed dependency on correct user stack for syscall. Simplified code slightly as well

17 months agoModified build system a bit, to fix mistakes and simplify it. Only very small changes
Amelia Coutard [Thu, 15 Jun 2023 02:33:36 +0000 (04:33 +0200)]
Modified build system a bit, to fix mistakes and simplify it. Only very small changes

17 months agoRemoved caching for RAM: should fix any possible errors because of different cache...
Amelia Coutard [Thu, 1 Jun 2023 03:34:51 +0000 (05:34 +0200)]
Removed caching for RAM: should fix any possible errors because of different cache rules overlapping. Will make it good eventually

17 months agoUpdated dirty hack
Amelia Coutard [Thu, 1 Jun 2023 03:05:32 +0000 (05:05 +0200)]
Updated dirty hack

19 months agoSaved all registers required by the system V ABI. (Except for the disabled SSE2 one.)
Amelia Coutard [Sat, 8 Apr 2023 22:15:15 +0000 (00:15 +0200)]
Saved all registers required by the system V ABI. (Except for the disabled SSE2 one.)

19 months agoMade a first change to the setup of the processes, to allow for correct saving of...
Amelia Coutard [Mon, 27 Mar 2023 13:59:36 +0000 (15:59 +0200)]
Made a first change to the setup of the processes, to allow for correct saving of the registers on a process switch. Not finished yet

19 months agoMade types a bit better
Amelia Coutard [Sun, 26 Mar 2023 02:24:29 +0000 (04:24 +0200)]
Made types a bit better

19 months agoMade ints print in base 10
Amelia Coutard [Sun, 26 Mar 2023 02:14:56 +0000 (04:14 +0200)]
Made ints print in base 10

19 months agoAdded printing of phys_ptrs and pointers
Amelia Coutard [Sun, 26 Mar 2023 02:08:35 +0000 (04:08 +0200)]
Added printing of phys_ptrs and pointers

19 months agoAdded phys_ptr<void>
Amelia Coutard [Sun, 26 Mar 2023 01:52:53 +0000 (03:52 +0200)]
Added phys_ptr<void>

19 months agoReimplemented the page allocator
Amelia Coutard [Sun, 26 Mar 2023 01:35:30 +0000 (03:35 +0200)]
Reimplemented the page allocator

20 months agoSimplified implementation of `allocate` a bit
Amelia Coutard [Sun, 19 Mar 2023 02:03:05 +0000 (03:03 +0100)]
Simplified implementation of `allocate` a bit

20 months agoImplemented memset and memcpy, to make some for loops clearer
Amelia Coutard [Sun, 19 Mar 2023 01:04:17 +0000 (02:04 +0100)]
Implemented memset and memcpy, to make some for loops clearer

20 months agoMade multiboot2.hpp a bit cleaner
Amelia Coutard [Sat, 18 Mar 2023 20:12:58 +0000 (21:12 +0100)]
Made multiboot2.hpp a bit cleaner

20 months agoEncapsulated running the first process into a function
Amelia Coutard [Tue, 14 Mar 2023 15:48:24 +0000 (16:48 +0100)]
Encapsulated running the first process into a function

20 months agoAdded missing save of rflags
Amelia Coutard [Tue, 14 Mar 2023 11:50:37 +0000 (12:50 +0100)]
Added missing save of rflags

20 months agoMade the stack pages load lazily
Amelia Coutard [Mon, 13 Mar 2023 22:45:46 +0000 (23:45 +0100)]
Made the stack pages load lazily

20 months agoChanged the handlers a bit, to make the code a bit simpler and clearer
Amelia Coutard [Mon, 13 Mar 2023 22:45:16 +0000 (23:45 +0100)]
Changed the handlers a bit, to make the code a bit simpler and clearer

20 months agoChanged compile options a bit
Amelia Coutard [Mon, 13 Mar 2023 22:44:24 +0000 (23:44 +0100)]
Changed compile options a bit

20 months agoChanged the instruction that jumps to ring 3 from sysretq to iretq
Amelia Coutard [Mon, 13 Mar 2023 22:43:45 +0000 (23:43 +0100)]
Changed the instruction that jumps to ring 3 from sysretq to iretq

20 months agoWrote a new spec for the syscalls
Amelia Coutard [Mon, 13 Mar 2023 14:22:22 +0000 (15:22 +0100)]
Wrote a new spec for the syscalls

20 months agoMoved the loading of the elf program before the aquisition of most physical memory...
Amelia Coutard [Mon, 13 Mar 2023 14:14:51 +0000 (15:14 +0100)]
Moved the loading of the elf program before the aquisition of most physical memory, in order to allow for freeing the corresponding multiboot module more easily

20 months agoChanged basically nothing
Amelia Coutard [Mon, 13 Mar 2023 13:48:40 +0000 (14:48 +0100)]
Changed basically nothing

20 months agoFixed mmap_print syscall, to work with the new processes data structures
Amelia Coutard [Sat, 11 Mar 2023 01:11:37 +0000 (02:11 +0100)]
Fixed mmap_print syscall, to work with the new processes data structures

20 months agoAdded automatic page mapping on some page faults. Also fixed a critical bug in the...
Amelia Coutard [Sat, 11 Mar 2023 01:09:12 +0000 (02:09 +0100)]
Added automatic page mapping on some page faults. Also fixed a critical bug in the implementation of interrupt handlers with a error code

20 months agoMoved elf loading to elf64.?pp, added the start of the needed architecture for multip...
Amelia Coutard [Fri, 10 Mar 2023 17:06:39 +0000 (18:06 +0100)]
Moved elf loading to elf64.?pp, added the start of the needed architecture for multiple processes and IPC

20 months agoAvoided future, and probably current, problems by enabling -fno-strict-aliasing
Amelia Coutard [Fri, 10 Mar 2023 17:04:18 +0000 (18:04 +0100)]
Avoided future, and probably current, problems by enabling -fno-strict-aliasing

20 months agoAdded syscall to show userspace vmemory, to make debugging the kernel easier
Amelia Coutard [Mon, 6 Mar 2023 19:14:57 +0000 (20:14 +0100)]
Added syscall to show userspace vmemory, to make debugging the kernel easier

20 months agoRemoved global bit on the low-memory mapping of the kernel: it was a mistake
Amelia Coutard [Mon, 6 Mar 2023 16:09:48 +0000 (17:09 +0100)]
Removed global bit on the low-memory mapping of the kernel: it was a mistake

20 months agoAdded the global bit to all pages in the higher half
Amelia Coutard [Sun, 5 Mar 2023 23:45:34 +0000 (00:45 +0100)]
Added the global bit to all pages in the higher half

20 months agoEdited os::paging::setup_pages a bit. Notably, the global bit is now set for all...
Amelia Coutard [Sun, 5 Mar 2023 23:40:35 +0000 (00:40 +0100)]
Edited os::paging::setup_pages a bit. Notably, the global bit is now set for all hhigher-half memory

20 months agoEdited comments a tiny bit
Amelia Coutard [Sun, 5 Mar 2023 22:43:58 +0000 (23:43 +0100)]
Edited comments a tiny bit

20 months agoUsed different comment symbol for .S files copyright & licence notices
Amelia Coutard [Sun, 5 Mar 2023 18:57:14 +0000 (19:57 +0100)]
Used different comment symbol for .S files copyright & licence notices

20 months agoEnable global bit for paging
Amelia Coutard [Sun, 5 Mar 2023 18:56:36 +0000 (19:56 +0100)]
Enable global bit for paging

20 months agoMoved most asm simple utils to utils.?pp. Also fixed invlpg usage
Amelia Coutard [Sun, 5 Mar 2023 17:58:08 +0000 (18:58 +0100)]
Moved most asm simple utils to utils.?pp. Also fixed invlpg usage

20 months agoMoved the code to initialise an empty page in the PML4T to paging.cpp
Amelia Coutard [Sun, 5 Mar 2023 03:00:02 +0000 (04:00 +0100)]
Moved the code to initialise an empty page in the PML4T to paging.cpp

20 months agoMerged stuff because I be silly
Amelia Coutard [Sun, 5 Mar 2023 02:58:32 +0000 (03:58 +0100)]
Merged stuff because I be silly

20 months agoAdded IPC design to doc.txt
Amelia Coutard [Sun, 5 Mar 2023 02:54:37 +0000 (03:54 +0100)]
Added IPC design to doc.txt

20 months agoAdded basic API for IPC in doc.txt. Not implemented yet
Amelia Coutard [Sat, 4 Mar 2023 02:12:34 +0000 (03:12 +0100)]
Added basic API for IPC in doc.txt. Not implemented yet

20 months agoAdded support for haing multiple different syscalls (via a call jump table)
Amelia Coutard [Wed, 1 Mar 2023 14:19:32 +0000 (15:19 +0100)]
Added support for haing multiple different syscalls (via a call jump table)

20 months agoFixed elf page-alignment necessity. Now only requires no page overlap
Amelia Coutard [Wed, 1 Mar 2023 13:57:54 +0000 (14:57 +0100)]
Fixed elf page-alignment necessity. Now only requires no page overlap

20 months agoRemoved assert that had become useless.
Amelia Coutard [Wed, 1 Mar 2023 13:09:38 +0000 (14:09 +0100)]
Removed assert that had become useless.

20 months agoAdded naming information to doc.txt
Amelia Coutard [Wed, 1 Mar 2023 01:17:23 +0000 (02:17 +0100)]
Added naming information to doc.txt

20 months agoFixed naming (amycros still present in some places). Also fixed .gitignore for naming...
Amelia Coutard [Wed, 1 Mar 2023 01:12:19 +0000 (02:12 +0100)]
Fixed naming (amycros still present in some places). Also fixed .gitignore for naming and test_module (special case no longer needed)

20 months agoAdded a doc.txt file to specify the kernel documentation, and added a corresponding...
Amelia Coutard [Tue, 28 Feb 2023 22:24:56 +0000 (23:24 +0100)]
Added a doc.txt file to specify the kernel documentation, and added a corresponding assert in the code

Currently, the documentation specifies how virtual memory is used.
The added assert ensures that any loaded elf program's segments are within the specified bounds.

20 months agoAdded missing copyright & licence disclaimers, and fixed the existing ones
Amelia Coutard [Tue, 28 Feb 2023 21:21:28 +0000 (22:21 +0100)]
Added missing copyright & licence disclaimers, and fixed the existing ones

20 months agoRemoved the linker script from the test module: it was unneeded
Amelia Coutard [Tue, 28 Feb 2023 20:52:59 +0000 (21:52 +0100)]
Removed the linker script from the test module: it was unneeded

20 months agoFixed namespace-ending comments where that was needed
Amelia Coutard [Tue, 28 Feb 2023 01:35:20 +0000 (02:35 +0100)]
Fixed namespace-ending comments where that was needed

20 months agoRemoved some logging
Amelia Coutard [Tue, 28 Feb 2023 01:34:35 +0000 (02:34 +0100)]
Removed some logging

20 months agoFixed bug in page counting for elf file loading. Added support for writeable segments...
Amelia Coutard [Mon, 27 Feb 2023 16:55:49 +0000 (17:55 +0100)]
Fixed bug in page counting for elf file loading. Added support for writeable segments of elf files (RO is still RO)

20 months agoAdded missing stack to ftl_to_userspace
Amelia Coutard [Mon, 27 Feb 2023 12:32:10 +0000 (13:32 +0100)]
Added missing stack to ftl_to_userspace

20 months agoImplemented an elf64 loader for test_module
Amelia Coutard [Mon, 27 Feb 2023 11:47:20 +0000 (12:47 +0100)]
Implemented an elf64 loader for test_module

20 months agoEdited Makefile a bit to make it cleaner
Amelia Coutard [Mon, 27 Feb 2023 00:39:56 +0000 (01:39 +0100)]
Edited Makefile a bit to make it cleaner

20 months agoRevamped build system, and rewrote test module to be simpler and more correct (though...
Amelia Coutard [Sun, 26 Feb 2023 22:58:04 +0000 (23:58 +0100)]
Revamped build system, and rewrote test module to be simpler and more correct (though still not actually just producing an elf. Coming soon)

20 months agoMoved .section .text where it makes sense
Amelia Coutard [Sun, 26 Feb 2023 14:28:37 +0000 (15:28 +0100)]
Moved .section .text where it makes sense

20 months agoMoved some source files to a `lib` directory.
Amelia Coutard [Sat, 25 Feb 2023 15:08:23 +0000 (16:08 +0100)]
Moved some source files to a `lib` directory.

20 months agoAdded missing stuff to the .gitignore
Amelia Coutard [Sat, 25 Feb 2023 13:15:03 +0000 (14:15 +0100)]
Added missing stuff to the .gitignore

20 months agoChanged the text printed by the userspace a bit
Amelia Coutard [Sat, 25 Feb 2023 13:14:15 +0000 (14:14 +0100)]
Changed the text printed by the userspace a bit

20 months agoUpdated gcc version in the Makefile hack
Amelia Coutard [Sat, 25 Feb 2023 13:13:37 +0000 (14:13 +0100)]
Updated gcc version in the Makefile hack

20 months agoChanged the logged text a bit
Amelia Coutard [Sat, 25 Feb 2023 13:12:49 +0000 (14:12 +0100)]
Changed the logged text a bit

2 years agoMade it so arg_n have to all be specified or all missing, no weird combining of the...
Amelia Coutard [Sun, 16 Oct 2022 00:12:37 +0000 (02:12 +0200)]
Made it so arg_n have to all be specified or all missing, no weird combining of the two. Also added convertion to a common type, to instanciate less occurences of print_nth_helper::operator%

2 years agoFixed error in rule for creating isodir/boot/test-module
Amelia Coutard [Sun, 16 Oct 2022 00:09:51 +0000 (02:09 +0200)]
Fixed error in rule for creating isodir/boot/test-module

2 years agoAdded actual string formatting to the printing.
Amelia Coutard [Sat, 15 Oct 2022 10:01:17 +0000 (12:01 +0200)]
Added actual string formatting to the printing.

2 years agoAdded start symbol, to start transitioning the module to elf64
Amelia Coutard [Fri, 14 Oct 2022 14:17:48 +0000 (16:17 +0200)]
Added start symbol, to start transitioning the module to elf64

2 years agoFixed bug about dependencies in the kernel's module.mk
Amelia Coutard [Fri, 14 Oct 2022 07:07:03 +0000 (09:07 +0200)]
Fixed bug about dependencies in the kernel's module.mk

2 years agoAdded the userspace module to the repo
Amelia Coutard [Thu, 13 Oct 2022 23:38:56 +0000 (01:38 +0200)]
Added the userspace module to the repo

It's not made to last, so don't worry about the lack of cleanness. I'll
implement elf64 soon-ish.

2 years agoAdded CC0 licence (for Makefiles), and renamed COPYING accordingly
Amelia Coutard [Thu, 13 Oct 2022 23:18:08 +0000 (01:18 +0200)]
Added CC0 licence (for Makefiles), and renamed COPYING accordingly

2 years agoRestructured build system, to allow for easier adding of separate programs later
Amelia Coutard [Thu, 13 Oct 2022 23:17:24 +0000 (01:17 +0200)]
Restructured build system, to allow for easier adding of separate programs later

2 years agoMade ftl_to_userspace jump to a loaded module at linear address 0x1000, instead of...
Amelia Coutard [Thu, 13 Oct 2022 14:47:08 +0000 (16:47 +0200)]
Made ftl_to_userspace jump to a loaded module at linear address 0x1000, instead of a function in the higher-half

2 years agoMade the physical pages returned by the allocator null, to avoid any unexpected bugs...
Amelia Coutard [Thu, 13 Oct 2022 14:45:51 +0000 (16:45 +0200)]
Made the physical pages returned by the allocator null, to avoid any unexpected bugs. Might change later

2 years agoChanged the page tables to use bitfields
Amelia Coutard [Thu, 13 Oct 2022 09:26:43 +0000 (11:26 +0200)]
Changed the page tables to use bitfields

2 years agoRemoved docs.txt. Will remake later
Amelia Coutard [Tue, 11 Oct 2022 21:39:27 +0000 (23:39 +0200)]
Removed docs.txt. Will remake later

2 years agoImplemented a very simple way of jumping to userspace
Amelia Coutard [Tue, 11 Oct 2022 11:55:06 +0000 (13:55 +0200)]
Implemented a very simple way of jumping to userspace

2 years agoMoved the GDT to the higher half (added a second lgdt after jump to 64 bits), to...
Amelia Coutard [Tue, 11 Oct 2022 06:38:45 +0000 (08:38 +0200)]
Moved the GDT to the higher half (added a second lgdt after jump to 64 bits), to allow for unmapping the whole lower half

2 years agoFixed TSS setup.
Amelia Coutard [Mon, 10 Oct 2022 20:56:19 +0000 (22:56 +0200)]
Fixed TSS setup.

2 years agoAdded -no-reboot to qemu options
Amelia Coutard [Mon, 10 Oct 2022 14:10:46 +0000 (16:10 +0200)]
Added -no-reboot to qemu options

2 years agoChanged the order of the info in the GDT, to make it possible to use syscall/sysret
Amelia Coutard [Sun, 9 Oct 2022 18:30:21 +0000 (20:30 +0200)]
Changed the order of the info in the GDT, to make it possible to use syscall/sysret

2 years agoChanged the printing code a bit, to allow for a format argument when printing (unused...
Amelia Coutard [Sun, 9 Oct 2022 01:06:30 +0000 (03:06 +0200)]
Changed the printing code a bit, to allow for a format argument when printing (unused for now)

2 years agoChanged the algorithm that makes the free RAM available, to make it cleaner and more...
Amelia Coutard [Sat, 8 Oct 2022 18:27:23 +0000 (20:27 +0200)]
Changed the algorithm that makes the free RAM available, to make it cleaner and more effective

2 years agoMade printing clearer
Amelia Coutard [Sat, 8 Oct 2022 14:10:58 +0000 (16:10 +0200)]
Made printing clearer