When the ipc system call is used to wrap a semctl system call, the ptr argument to ipc needs to be dereferenced prior to passing it to the semctl handler. This is because the fourth argument to semctl is a union and not a pointer to a union. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Read the documentation in qemu-doc.html or on http://wiki.qemu-project.org - QEMU team
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