bcc: move to the right dynamic-layer

* it depends not only on meta-oe, but on meta-python as well
  and because meta-python depends on meta-oe, we can enable this
  when ever meta-python is included

* fixes:
NOTE: Resolving any missing task queue dependencies
ERROR: Nothing RPROVIDES 'python3-pyroute2' (but /OE/build/oe-core/meta-clang/dynamic-layers/openembedded-layer/recipes-devtools/bcc/bcc_0.28.0.bb RDEPENDS on or otherwise requires it)
NOTE: Runtime target 'python3-pyroute2' is unbuildable, removing...
Missing or unbuildable dependency chain was: ['python3-pyroute2']
ERROR: Nothing RPROVIDES 'python3-netaddr' (but /OE/build/oe-core/meta-clang/dynamic-layers/openembedded-layer/recipes-devtools/bcc/bcc_0.28.0.bb RDEPENDS on or otherwise requires it)
NOTE: Runtime target 'python3-netaddr' is unbuildable, removing...
Missing or unbuildable dependency chain was: ['python3-netaddr']
ERROR: Nothing RPROVIDES 'bcc-dev' (but /OE/build/oe-core/meta-clang/dynamic-layers/openembedded-layer/recipes-devtools/bcc/bcc_0.28.0.bb RDEPENDS on or otherwise requires it)
No eligible RPROVIDERs exist for 'bcc-dev'
NOTE: Runtime target 'bcc-dev' is unbuildable, removing...
Missing or unbuildable dependency chain was: ['bcc-dev']
ERROR: Nothing RPROVIDES 'bcc' (but /OE/build/oe-core/meta-clang/dynamic-layers/openembedded-layer/recipes-devtools/bcc/bcc_0.28.0.bb RDEPENDS on or otherwise requires it)
No eligible RPROVIDERs exist for 'bcc'
NOTE: Runtime target 'bcc' is unbuildable, removing...
Missing or unbuildable dependency chain was: ['bcc']

1 files changed, 41 insertions, 0 deletions

diff --git a/dynamic-layers/meta-python/recipes-devtools/bcc/bcc/0001-tools-trace.py-Fix-failing-to-exit.patch b/dynamic-layers/meta-python/recipes-devtools/bcc/bcc/0001-tools-trace.py-Fix-failing-to-exit.patch
new file mode 100644
index 0000000..6ac7219
--- /dev/null
+++ b/dynamic-layers/meta-python/recipes-devtools/bcc/bcc/0001-tools-trace.py-Fix-failing-to-exit.patch
@@ -0,0 +1,41 @@
+From a9f59fc8605de1bcca0b6c2d8132585f40c3b9bc Mon Sep 17 00:00:00 2001
+From: He Zhe <zhe.he@windriver.com>
+Date: Thu, 13 Aug 2020 11:25:58 +0800
+Subject: [PATCH] tools/trace.py: Fix failing to exit
+
+Class Probe::print_event is used as a callback of a ctypes wrapper. With
+Yocto latest python v3.8.5, the exception raised by exit() is ignored and
+thus trace cannot exit. Use os._exit(0) instead.
+
+$ /usr/share/bcc/tools/trace do_sys_open -M 1
+PID TID COMM FUNC
+3740 3740 irqbalance do_sys_open
+Exception ignored on calling ctypes callback function:
+<function PerfEventArray.open_perf_buffer.<locals>.raw_cb at 0x7f7c9efea280>
+Traceback (most recent call last):
+File "/usr/lib64/python3.8/site-packages/bcc/table.py", line 685, in raw_cb_
+callback(cpu, data, size)
+File "/usr/share/bcc/tools/trace", line 630, in print_event
+exit()
+File "/usr/lib64/python3.8/sitebuiltins.py", line 26, in __call_
+raise SystemExit(code)
+SystemExit: None
+
+Upstream-Status: Pending
+
+Signed-off-by: He Zhe <zhe.he@windriver.com>
+---
+ tools/trace.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/tools/trace.py
++++ b/tools/trace.py
+@@ -671,7 +671,7 @@ BPF_PERF_OUTPUT(%s);
+                     if self.aggregate:
+                         self.print_aggregate_events()
+                     sys.stdout.flush()
+-                    exit()
++                    os._exit(0)
+ 
+         def attach(self, bpf, verbose):
+                 if len(self.library) == 0: