Function sys_shmat

components/lwp/lwp_syscall.c:4686–4689

* @brief Attaches a shared memory segment to the calling process's address space. * * This system call maps a shared memory segment identified by `id` into the calling * process's address space. The segment can then be accessed using the returned virtual * address. If the segment was previously detached or created, it will be made available * for reading and writing. * * @param[in] id

 *          segment may result in undefined behavior.
 */
void* sys_shmat(int id, void* shm_vaddr)
{
    return lwp_shmat(id, shm_vaddr);
}

/**
 * @brief Detaches a shared memory segment from the calling process's address space.