pwrite64 on score

read from or write to a file descriptor at a given offset

sys_pwrite64(unsigned int fd, const char *buf, size_t count, loff_t pos)
number68 (0x44)
abicommon
entry pointsys_pwrite64
sinceLinux 3.7 or earlier (3.7 is the first release scanned for score)
man pagepwrite64(2)
sourceelixir.bootlin.com

Registers

registervalue
r2768, the syscall number
r4unsigned int fd
r5const char *buf
r6size_t count
r7loff_t pos
r4the return value

Then run syscall to enter the kernel.

r7 is the error flag and r4 then holds the positive error number.

This architecture was removed from the Linux kernel in Linux 4.17. The newest release with a syscall table here is Linux 4.16. The other removed architectures live on the historical architectures page.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/score/pwrite64?kernel=all