ftruncate on score

truncate a file to a specified length

sys_ftruncate(unsigned int fd, unsigned long length)
number1047 (0x417)
abicommon
entry pointsys_ftruncate
sinceLinux 3.7 or earlier (3.7 is the first release scanned for score)
man pageftruncate(2)
sourceelixir.bootlin.com

Registers

registervalue
r271047, the syscall number
r4unsigned int fd
r5unsigned long length
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/ftruncate?kernel=all