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Subject[PATCH 06/14] selftests/sgx: Dump segments and /proc/self/maps only on failure
Date
From: Jarkko Sakkinen <jarkko@kernel.org>

Logging is always a compromise between clarity and detail. The main use
case for dumping VMA's is when FIXTURE_SETUP() fails, and is less important
for enclaves that do initialize correctly. Therefore, print the segments
and /proc/self/maps only in the error case.

Finally, if a single test ever creates multiple enclaves, the amount of
log lines would become enormous.

Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
tools/testing/selftests/sgx/main.c | 23 ++++++++++++-----------
1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/tools/testing/selftests/sgx/main.c b/tools/testing/selftests/sgx/main.c
index 6858a35fed20..deab02f2f3ce 100644
--- a/tools/testing/selftests/sgx/main.c
+++ b/tools/testing/selftests/sgx/main.c
@@ -127,12 +127,6 @@ FIXTURE_SETUP(enclave)
ksft_exit_skip("cannot load enclaves\n");
}

- for (i = 0; i < self->encl.nr_segments; i++) {
- seg = &self->encl.segment_tbl[i];
-
- TH_LOG("0x%016lx 0x%016lx 0x%02x", seg->offset, seg->size, seg->prot);
- }
-
if (!encl_measure(&self->encl))
goto err;

@@ -169,6 +163,17 @@ FIXTURE_SETUP(enclave)
memset(&self->run, 0, sizeof(self->run));
self->run.tcs = self->encl.encl_base;

+ return;
+
+err:
+ encl_delete(&self->encl);
+
+ for (i = 0; i < self->encl.nr_segments; i++) {
+ seg = &self->encl.segment_tbl[i];
+
+ TH_LOG("0x%016lx 0x%016lx 0x%02x", seg->offset, seg->size, seg->prot);
+ }
+
maps_file = fopen("/proc/self/maps", "r");
if (maps_file != NULL) {
while (fgets(maps_line, sizeof(maps_line), maps_file) != NULL) {
@@ -181,11 +186,7 @@ FIXTURE_SETUP(enclave)
fclose(maps_file);
}

-err:
- if (!sgx_enter_enclave_sym)
- encl_delete(&self->encl);
-
- ASSERT_NE(sgx_enter_enclave_sym, NULL);
+ ASSERT_TRUE(false);
}

FIXTURE_TEARDOWN(enclave)
--
2.25.1
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