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/* COVERAGE: shmat shmdt */
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <unistd.h>
#include <time.h>
#include <sys/time.h>
int main()
{
char *curdir;
struct timeval tv;
key_t ipc_key;
int shmid;
void *addr;
// Generate a System V IPC key (based on the current directory and time)
curdir = getcwd(NULL, 0);
gettimeofday(&tv, NULL);
ipc_key = ftok(curdir, tv.tv_usec);
// Why 64k? ppc64 has 64K pages. ia64 has 16k pages. x86_64/i686
// has 4k pages. When we specify a size to shmget(), it must be a
// multiple of the page size, so we use the biggest.
//
// The least significant 9 bites of the flags argument are the
// permissions. 0600 is read/write permissions.
shmid = shmget(ipc_key, 65535, (IPC_CREAT | IPC_EXCL | 0600));
//staptest// shmget (NNNN, 65535, IPC_CREAT|IPC_EXCL|0600) = NNNN
addr = shmat(shmid, NULL, SHM_RDONLY);
//staptst// shmat (NNNN, 0x0, SHM_RDONLY) = NNNN
addr = shmat(shmid, addr, SHM_REMAP);
//staptst// shmat (NNNN, XXXX, SHM_REMAP) = NNNN
shmdt(addr);
//staptest// shmdt (XXXX) = NNNN
shmat(-1, NULL, SHM_RND);
//staptst// shmat (NNNN, 0x0, SHM_RND) = -NNNN
shmat(shmid, (void *)-1, SHM_RND);
//staptst// shmat (NNNN, 0xf000, SHM_RND) = NNNN
shmdt((void *)-1);
#ifdef __s390__
//staptest// shmdt (0x[7]?[f]+) = NNNN
#else
//staptest// shmdt (0x[f]+) = NNNN
#endif
shmctl(shmid, IPC_RMID, NULL);
//staptest// shmctl (NNNN, [[[[IPC_64|]]]]?IPC_RMID, 0x0) = NNNN
return 0;
}
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