kernel: adjust formatting

This commit is contained in:
2026-02-19 18:57:53 +00:00
parent 6019c9307d
commit f89e3cb12c
2 changed files with 32 additions and 25 deletions

View File

@@ -332,80 +332,80 @@ IRQ 223, 255
isr_common_stub:
PUSH_REGS
mov %rsp, %rdi
call isr_dispatch
POP_REGS
add $16, %rsp
iretq
.global irq_common_stub
.type irq_common_stub, @function
irq_common_stub:
PUSH_REGS
mov %rsp, %rdi
call irq_dispatch
POP_REGS
add $16, %rsp
iretq
.global syscall_gate
.type syscall_gate, @function
.extern syscall_dispatch
.type syscall_dispatch, @function
syscall_gate:
swapgs
movq %rsp, %gs:20 # GS+20 = rsp2 in the current TSS block (user stack storage)
movq %gs:4, %rsp # GS+4 = rsp0 in the current TSS block (per-thread kstack)
# start building a pf_cpu_context
# start building a ml_cpu_context
pushq $0x1b
pushq %gs:20
push %r11
push $0x23
push %rcx
pushq $0
pushq $0x80
PUSH_REGS
mov %rsp, %rdi
# switch back to user gs while in syscall_dispatch. Interrupts are enabled in syscall_dispatch,
# and if the task gets pre-empted, the incoming task will expect %gs to have its usermode value.
swapgs
call syscall_dispatch
POP_REGS
add $16, %rsp
pop %rcx
add $8, %rsp
pop %r11
add $16, %rsp
swapgs
movq %gs:20, %rsp # GS+20 = rsp2 in the current TSS block
swapgs
# back to usermode
sysretq
.global pf_faultptr
.type pf_faultptr, @function
pf_faultptr:
mov %cr2, %rax
ret