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On Mon, 10 May 2004, Davide Libenzi wrote: > On the kernel side, this would be pretty much solved by issuing a ptrace > op, with a modified EIP (+2) on return from a syscall (if in single-step > mode). Actaully, the EIP should not be changed (since it already points to the intruction following INT 0x80) and I believe it is sufficent to replace the test for _TIF_SYSCALL_TRACE with (_TIF_SYSCALL_TRACE | TIF_SINGLESTEP) in the system call return path. This should generate a ptrace trap with EIP pointing to the next instruction following INT 0x80. - Davide - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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