process_vm_writev on score

transfer data between process address spaces

sys_process_vm_writev(pid_t pid, const struct iovec *lvec, unsigned long liovcnt, const struct iovec *rvec, unsigned long riovcnt, unsigned long flags)
number271 (0x10f)
abicommon
entry pointsys_process_vm_writev
sinceLinux 3.7 or earlier (3.7 is the first release scanned for score)
man pageprocess_vm_writev(2)
sourceelixir.bootlin.com

Registers

registervalue
r27271, the syscall number
r4pid_t pid
r5const struct iovec *lvec
r6unsigned long liovcnt
r7const struct iovec *rvec
r8unsigned long riovcnt
r9unsigned long flags
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/process_vm_writev?kernel=all