tools/argdist: Add ebpf option to print BPF program code only

tools/argdist.py

@@ -648,6 +648,8 @@ def __init__(self):
  "as either full path, "
  "or relative to relative to current working directory, "
  "or relative to default kernel header search path")
+ parser.add_argument("--ebpf", action="store_true",
+ help=argparse.SUPPRESS)
  self.args = parser.parse_args()
  self.usdt_ctx = None
 
@@ -683,7 +685,10 @@ def _generate_program(self):
  for probe in self.probes
  if probe.usdt_ctx]:
  print(text)
- print(bpf_source)
+ if self.args.verbose or self.args.ebpf:
+ print(bpf_source)
+ if self.args.ebpf:
+ exit()
  usdt_contexts = [probe.usdt_ctx
  for probe in self.probes if probe.usdt_ctx]
  self.bpf = BPF(text=bpf_source, usdt_contexts=usdt_contexts)