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Fix fork() for new task switching model

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This commit is contained in:
Justin C. Miller
2019-04-03 10:08:26 -07:00
parent 8375870af6
commit c605793a9d
13 changed files with 172 additions and 97 deletions
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19
src/kernel/boot.s
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@@ -18,11 +18,11 @@ global _start:function (_start.end - _start)
_start:
cli
mov rsp, stack_end
push 0 ; signal end of stack with 0 return address
push 0 ; and a few extra entries in case of stack
push 0 ; problems
push 0
mov rsp, idle_stack_end
mov qword [rsp + 0x00], 0 ; signal end of stack with 0 return address
mov qword [rsp + 0x08], 0 ; and a few extra entries in case of stack
mov qword [rsp + 0x10], 0 ; problems
mov qword [rsp + 0x18], 0
mov rbp, rsp
extern kernel_main
@@ -47,6 +47,9 @@ interrupts_disable:
section .bss
align 0x100
stack_begin:
resb 0x4000 ; 16KiB stack space
stack_end:
idle_stack_begin:
resb 0x1000 ; 4KiB stack space
global idle_stack_end
idle_stack_end:
resq 4