Fpstate Vso Link

When a Linux process receives an asynchronous signal, the kernel temporarily interrupts normal execution to invoke a signal handler. Before jumping to user space code, the kernel builds a on the user's stack.

fpstate refers to the structure the Linux kernel uses to save and restore the state of the CPU's floating-point unit (FPU) and extended vector registers (like Intel AVX, AVX-512, or AMD equivalent registers). fpstate vso