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#include "x86_64_regs.S"
/* %rdi - irq's rsp */
.global save_context_from_rsp
save_context_from_rsp:
push %rbp
mov %rsp, %rbp
mov RSP_OFF(%rdi), %rsp
push SS_OFF(%rdi)
push RSP_OFF(%rdi)
push RFLAGS_OFF(%rdi)
push CS_OFF(%rdi)
push RIP_OFF(%rdi)
push $0
push RAX_OFF(%rdi)
push RCX_OFF(%rdi)
push RDX_OFF(%rdi)
push RSI_OFF(%rdi)
push RDI_OFF(%rdi)
push R8_OFF(%rdi)
push R9_OFF(%rdi)
push R10_OFF(%rdi)
push R11_OFF(%rdi)
push SEG_OFF(%rdi)
push RBX_OFF(%rdi)
push RBP_OFF(%rdi)
push R12_OFF(%rdi)
push R13_OFF(%rdi)
push R14_OFF(%rdi)
push R15_OFF(%rdi)
mov %rsp, %rax
mov %rbp, %rsp
pop %rbp
ret
/* %rdi - task's rsp */
.global restore_context_from_rsp
restore_context_from_rsp:
mov %rdi, %rsp
pop_callee_saved
pop_caller_saved
add $8, %rsp
iretq
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