Messages in this thread | | | Date | Tue, 5 Jul 2005 16:16:51 +0200 | From | Andi Kleen <> | Subject | Re: [PATCH] x86-64: ptrace ia32 BP fix |
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> Wouldn't this to botch a debugger which supported both backtracing and > PTRACE_SYSCALL, when stopped in a syscall? We have unwind information > for the VDSO and it's not going to tell us that the kernel has done > something clever to the value of %ebp.
The kernel is indeed not supposed to modify any input registers of syscalls (ok except rcx, but that is unavoidable)
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