debugging: labs: remove -D__TARGET_ARCH_arm

The define is now hardcoded in the ebpf program for the lab, remove it
from the instructions

Signed-off-by: Alexis Lothoré <[email protected]>

labs/debugging-ebpf/debugging-ebpf.tex

@@ -85,7 +85,7 @@ \section{libbpf}
   \end{bashinput}
   \item Next you need to build your eBPF program into a loadable object:
   \begin{bashinput}
-$ clang -target bpf -D__TARGET_ARCH_arm -g -O2 -c trace_programs.bpf.c -o trace_programs.bpf.o
+$ clang -target bpf -g -O2 -c trace_programs.bpf.c -o trace_programs.bpf.o
   \end{bashinput}
 {\em Note: since our program deals with pt\_regs, it is not portable between architectures, that's why we have to provide the target architecture with \code{__TARGET_ARCH_arm}}
   \item Finally, generate a C skeleton header from this object with bpftool and libbpf