Large File System Calls

A 32-bit program that supports large files that exceed two gigabytes in size must be able to process 64-bit file offsets. Because large files require use of large offsets, large files are manipulated through a parallel set of system interfaces. Table 11.2, “syscall Large File Probes” lists some of the syscall probes for the large file system call interfaces.

Table 11.2 syscall Large File Probes

Large File syscall Probe

System Call



pread64 *


pwrite64 *