41 static void* sysCreateAnonShmem(size_t length)  in sysCreateAnonShmem()  argument
46     ptr = mmap(NULL, length, PROT_READ | PROT_WRITE,  in sysCreateAnonShmem()
49         ALOGW("mmap(%d, RW, SHARED|ANON) failed: %s", (int) length,  in sysCreateAnonShmem()
64 int sysCreatePrivateMap(size_t length, MemMapping* pMap)  in sysCreatePrivateMap()  argument
68     memPtr = sysCreateAnonShmem(length);  in sysCreatePrivateMap()
73     pMap->length = pMap->baseLength = length;  in sysCreatePrivateMap()
83     size_t length;  in getFileStartAndLength()  local
97     length = end - start;  in getFileStartAndLength()
98     if (length == 0) {  in getFileStartAndLength()
104     *length_ = length;  in getFileStartAndLength()
120     size_t length, actual;  in sysLoadFileInShmem()  local
125     if (getFileStartAndLength(fd, &start, &length) < 0)  in sysLoadFileInShmem()
128     memPtr = sysCreateAnonShmem(length);  in sysLoadFileInShmem()
132     actual = read(fd, memPtr, length);  in sysLoadFileInShmem()
133     if (actual != length) {  in sysLoadFileInShmem()
134         ALOGE("only read %d of %d bytes", (int) actual, (int) length);  in sysLoadFileInShmem()
140     pMap->baseLength = pMap->length = length;  in sysLoadFileInShmem()
157     size_t length;  in sysFakeMapFile()  local
162     if (getFileStartAndLength(fd, &start, &length) < 0)  in sysFakeMapFile()
165     memPtr = malloc(length);  in sysFakeMapFile()
166     if (read(fd, memPtr, length) < 0) {  in sysFakeMapFile()
167         ALOGW("read(fd=%d, start=%d, length=%d) failed: %s", (int) length,  in sysFakeMapFile()
173     pMap->baseLength = pMap->length = length;  in sysFakeMapFile()
190     size_t length;  in sysMapFileInShmemReadOnly()  local
195     if (getFileStartAndLength(fd, &start, &length) < 0)  in sysMapFileInShmemReadOnly()
198     memPtr = mmap(NULL, length, PROT_READ, MAP_FILE | MAP_SHARED, fd, start);  in sysMapFileInShmemReadOnly()
200         ALOGW("mmap(%d, RO, FILE|SHARED, %d, %d) failed: %s", (int) length,  in sysMapFileInShmemReadOnly()
206     pMap->baseLength = pMap->length = length;  in sysMapFileInShmemReadOnly()
229     size_t length;  in sysMapFileInShmemWritableReadOnly()  local
234     if (getFileStartAndLength(fd, &start, &length) < 0)  in sysMapFileInShmemWritableReadOnly()
237     memPtr = mmap(NULL, length, PROT_READ | PROT_WRITE, MAP_FILE | MAP_PRIVATE,  in sysMapFileInShmemWritableReadOnly()
240         ALOGW("mmap(%d, R/W, FILE|PRIVATE, %d, %d) failed: %s", (int) length,  in sysMapFileInShmemWritableReadOnly()
244     if (mprotect(memPtr, length, PROT_READ) < 0) {  in sysMapFileInShmemWritableReadOnly()
248             memPtr, length, strerror(err));  in sysMapFileInShmemWritableReadOnly()
253     pMap->baseLength = pMap->length = length;  in sysMapFileInShmemWritableReadOnly()
268 int sysMapFileSegmentInShmem(int fd, off_t start, size_t length,  in sysMapFileSegmentInShmem()  argument
282     actualLength = length + adjust;  in sysMapFileSegmentInShmem()
295     pMap->length = length;  in sysMapFileSegmentInShmem()
298         (int) start, (int) length,  in sysMapFileSegmentInShmem()
300         pMap->addr, (int) pMap->length);  in sysMapFileSegmentInShmem()
314 int sysChangeMapAccess(void* addr, size_t length, int wantReadWrite,  in sysChangeMapAccess()  argument
335     size_t alignLength = length + ((u1*) addr - alignAddr);  in sysChangeMapAccess()