ptrace on blackfin

process trace

sys_ptrace(long request, long pid, unsigned long addr, unsigned long data)
number26 (0x1a)
abicommon
entry pointsys_ptrace
sinceLinux 3.3 or earlier (3.3 is the first release scanned for blackfin)
man pageptrace(2)
sourceelixir.bootlin.com

Registers

registervalue
P026, the syscall number
R0long request
R1long pid
R2unsigned long addr
R3unsigned long data
R0the return value

Then run excpt 0 to enter the kernel.

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/blackfin/ptrace?kernel=all