Cross Reference: /src/external/gpl3/gdb/dist/sim/ppc/hw

Lines Matching defs:shm
28 #include <sys/shm.h>
34    shm - map unix shared memory into psim address space
50    The SHM area is assumed to be of the same length.
59    Enable tracing of the shm:
61    |  bash$ psim -t shm-device \
67    |  -o '/shm@0x0c000000/reg 0x0c000000 0x80000' \
68    |  -o '/shm@0x0c000000/key 0x12345678' \
71          -o '/shm@0x0c000000/reg 0x0c000000 0x80000' \
72          -o '/shm@0x0c000000/key 0x12345678' ../psim-hello/hello
93   hw_shm_device *shm = (hw_shm_device*)device_data(me);
101   shm->key = (key_t) device_find_integer_property(me, "key");
102   DTRACE(shm, ("shm key (0x%08jx)\n", (intmax_t)shm->key) );
109   shm->physical_address = 0xffffffff;
110   shm->sizeof_memory = 0xffffffff;
116     if ( shm->physical_address != 0xffffffff )
119     shm->physical_address = reg.address.cells[i];
120     DTRACE(shm, ("shm physical_address=0x%x\n", shm->physical_address));
122     shm->sizeof_memory = reg.size.cells[i];
123     DTRACE(shm, ("shm length=0x%x\n", shm->sizeof_memory));
126   if ( shm->physical_address == 0xffffffff )
129   if ( shm->sizeof_memory == 0xffffffff )
133   shm->id = shmget(shm->key, shm->sizeof_memory, IPC_CREAT | 0660);
134   if (shm->id == -1)
137   shm->shm_address = shmat(shm->id, (char *)0, SHM_RND);
138   if (shm->shm_address == (void *)-1)
168   hw_shm_device *shm = (hw_shm_device*)device_data(me);
172   DTRACE(shm, ("read %p %x %x %x\n", \
173      shm->shm_address, shm->physical_address, addr, nr_bytes) );
175   memcpy(dest, &shm->shm_address[addr - shm->physical_address], nr_bytes);
189   hw_shm_device *shm = (hw_shm_device*)device_data(me);
193   DTRACE(shm, ("write %p %x %x %x\n", \
194      shm->shm_address, shm->physical_address, addr, nr_bytes) );
196   memcpy(&shm->shm_address[addr - shm->physical_address], source, nr_bytes);
216   hw_shm_device *shm = ZALLOC(hw_shm_device);
217   return shm;
223   { "shm", hw_shm_create, &hw_shm_callbacks },
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