[UNIKRAFT PATCH] lib/syscall_shim: Provide 'print-syscalls' build target

[Simon Kuenzer <simon.kuenzer@xxxxxxxxx>]

Provides 'print-syscalls' target that lists currently activated
system calls.

Signed-off-by: Simon Kuenzer <simon.kuenzer@xxxxxxxxx>
---
 lib/syscall_shim/Makefile.rules | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 lib/syscall_shim/Makefile.rules

diff --git a/lib/syscall_shim/Makefile.rules b/lib/syscall_shim/Makefile.rules
new file mode 100644
index 00000000..386ff9fe
--- /dev/null
+++ b/lib/syscall_shim/Makefile.rules
@@ -0,0 +1,9 @@
+.PHONY: print-syscalls
+
+ifeq ($(UK_HAVE_DOT_CONFIG),y)
+print-syscalls:
+       @echo $(UK_PROVIDED_SYSCALLS-y) $(UK_PROVIDED_SYSCALLS)
+else
+print-syscalls:
+       $(error Do not have a configuration. Please run one of the 
configuration targets first)
+endif
-- 
2.20.1