[PATCH v4 5/7] test/bpf: check that JIT was generated

[Stephen Hemminger <stephen@networkplumber.org>]

Avoid silently ignoring JIT failures. The test cases should
all succeed JIT compilation; if not it is a bug in the JIT
implementation and should be reported.

Introduce a configuration setting RTE_BPF_JIT_SUPPORTED
which is cleaner that adding ARCH specific #ifdef.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Marat Khalili <marat.khalili@huawei.com>
---
 app/test/test_bpf.c | 8 ++++++++
 lib/bpf/meson.build | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/app/test/test_bpf.c b/app/test/test_bpf.c
index b54e36910b..9adffcce64 100644
--- a/app/test/test_bpf.c
+++ b/app/test/test_bpf.c
@@ -3656,6 +3656,14 @@ run_test(const struct bpf_test *tst)
 				rv, strerror(rv));
 		}
 	}
+#ifdef RTE_BPF_JIT_SUPPORTED
+	else {
+		/* a JIT backend exists for this arch, so it must compile */
+		printf("%s@%d: %s: no JIT code generated;\n",
+			__func__, __LINE__, tst->name);
+		ret = -1;
+	}
+#endif
 
 	rte_bpf_destroy(bpf);
 	return ret;
diff --git a/lib/bpf/meson.build b/lib/bpf/meson.build
index 7e8a300e3f..04ede96689 100644
--- a/lib/bpf/meson.build
+++ b/lib/bpf/meson.build
@@ -27,8 +27,10 @@ sources = files(
 )
 
 if arch_subdir == 'x86' and dpdk_conf.get('RTE_ARCH_64')
+    dpdk_conf.set('RTE_BPF_JIT_SUPPORTED', 1)
     sources += files('bpf_jit_x86.c')
 elif dpdk_conf.has('RTE_ARCH_ARM64')
+    dpdk_conf.set('RTE_BPF_JIT_SUPPORTED', 1)
     sources += files('bpf_jit_arm64.c')
 endif
 
-- 
2.53.0