dholman/box.git - Unix-like kernel written in C

Age	Commit message (Collapse)	Author
2024-06-24	arch: i386: boot: zero ESP before calling i386_entry	Danny Holman
	Set the ESP register to NULL before calling any C code. This allows a stack trace to occur without overrunning the initial bootstrap stack. Signed-off-by: Danny Holman <dholman@gymli.org>
2024-06-21	libk: use a random value for the stack protector	Danny Holman
	Don't hardcode the __stack_chk_guard value, generate a random value (using RDRAND on x86) before running any C code. Signed-off-by: Danny Holman <dholman@gymli.org>
2024-06-21	arch: boot: allocate a few pages at startup	Danny Holman
	Allocate a few pages at startup just to get the paging and physical memory manager up and running. Signed-off-by: Danny Holman <dholman@gymli.org>
2024-05-27	arch: i386: pass entry page directory to entry func	Danny Holman
	Add a third argument to i386_entry. This argument is the bootstrap page directory. Pages can be temporarily mapped in during the initialization of the paging system. Signed-off-by: Danny Holman <dholman@gymli.org>
2024-03-28	arch: i386: kernel: add mostly finished PFA and paging system	Danny Holman
	Add the mostly finished physical memory allocator and expose its functions to the paging system. Signed-off-by: Danny Holman <dholman@gymli.org>
2024-02-24	kernel: string: add a strcpy function	Danny Holman
	Add an implmentation of strcpy. This function is used in several places in the kernel to copy strings between memory addresses. Signed-off-by: Danny Holman <dholman@gymli.org>
2024-02-24	arch: i386: move jump_userspace to its own file	Danny Holman
	Move the function that jumps to ring 3 to its own assembly file. Signed-off-by: Danny Holman <dholman@gymli.org>
2024-02-16	arch: i386: move raw assembly calls to their own header	Danny Holman
	Move simple assembly calls to their own header. All one or two line assembly calls should be defined in a single place. Signed-off-by: Danny Holman <dholman@gymli.org>
2023-11-26	arch: i386: boot.s: define functions for page management	Danny Holman
	Define the load_page_dir and enable_paging functions in assembly. This allows normal C code to initialize the CR3 register and control paging without using inline assembler. Signed-off-by: Danny Holman <dholman@gymli.org>
2023-11-26	arch: i386: boot.s: move C entry point to file	Danny Holman
	Move the initial C entry-point to its own file. Call all the i386 specific initialization routines from the new i386_entry function. Signed-off-by: Danny Holman <dholman@gymli.org>
2023-11-26	arch: i386: boot: boot.s	Danny Holman
	Fix several small bugs in assembler. Signed-off-by: Danny Holman <dholman@gymli.org>
2022-01-15	arch: i386: add support for IRQs and system calls	Danny Holman
	Add support for rudementary system calls and IRQ interrupts. Signed-off-by: Danny Holman <dholman@gymli.org>
2022-01-15	arch: i386: simplifiy GDT setup	Danny Holman
	Simplify the setup and definitions of GDT/TSS entries. Signed-off-by: Danny Holman <dholman@gymli.org>
2021-09-28	arch: i386: add support for 8259 PIC	Danny Holman
	Add support for the 8259 programmable interrupt controller. Signed-off-by: Danny Holman <dholman@gymli.xyz>
2021-08-30	i386: create idt.c and isr.s	Danny Holman
	Create files that add IDT support for i386. Signed-off-by: Danny Holman <dholman@gymli.xyz>
2021-07-24	arch: i386: add GDT setup routines	Danny Holman
	Add a set of routines that setup the x86's global descriptor table. Signed-off-by: Danny Holman <dholman@gymli.xyz>
2021-07-20	arch: i386: move the kernel to high memory	Danny Holman
	Move the start of the kernel image to the "higher half" of memory. This also enables paging.
2021-01-24	x86: reorganize the i386 directory	Danny Holman
	Add structure to the internals of the x86 directory. Signed-off-by: Danny Holman <dholman@gymli.xyz>