ptrace: Why does PTRACE_PEEKUSER not allow reading of FPU registers on x86?
Date
Wed, 21 Feb 2024 12:39:23 -0000
Hey folks,
Looking at arch/x86/kernel/ptrace.c, I can see that reading with PTRACE_PEEKUSER is only supported within the user::regs and user::u_debugreg fields. What's the reason that reading from user::i387 is disallowed?