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From: Yanan Wang <wangyanan55@huawei.com>
To: Paolo Bonzini <pbonzini@redhat.com>,
	Andrew Jones <drjones@redhat.com>, <kvm@vger.kernel.org>,
	<linux-kselftest@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: Ben Gardon <bgardon@google.com>,
	Sean Christopherson <seanjc@google.com>,
	Vitaly Kuznetsov <vkuznets@redhat.com>,
	Peter Xu <peterx@redhat.com>, "Ingo Molnar" <mingo@kernel.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Jiri Olsa <jolsa@redhat.com>,
	Arnaldo Carvalho de Melo <acme@redhat.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Michael Kerrisk <mtk.manpages@gmail.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	<wanghaibin.wang@huawei.com>, <yuzenghui@huawei.com>,
	Yanan Wang <wangyanan55@huawei.com>
Subject: [PATCH v6 04/10] KVM: selftests: Print the errno besides error-string in TEST_ASSERT
Date: Tue, 30 Mar 2021 16:08:50 +0800	[thread overview]
Message-ID: <20210330080856.14940-5-wangyanan55@huawei.com> (raw)
In-Reply-To: <20210330080856.14940-1-wangyanan55@huawei.com>

Print the errno besides error-string in TEST_ASSERT in the format of
"errno=%d - %s" will explicitly indicate that the string is an error
information. Besides, the errno is easier to be used for debugging
than the error-string.

Suggested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Yanan Wang <wangyanan55@huawei.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
---
 tools/testing/selftests/kvm/lib/assert.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/kvm/lib/assert.c b/tools/testing/selftests/kvm/lib/assert.c
index 5ebbd0d6b472..71ade6100fd3 100644
--- a/tools/testing/selftests/kvm/lib/assert.c
+++ b/tools/testing/selftests/kvm/lib/assert.c
@@ -71,9 +71,9 @@ test_assert(bool exp, const char *exp_str,
 
 		fprintf(stderr, "==== Test Assertion Failure ====\n"
 			"  %s:%u: %s\n"
-			"  pid=%d tid=%d - %s\n",
+			"  pid=%d tid=%d errno=%d - %s\n",
 			file, line, exp_str, getpid(), _gettid(),
-			strerror(errno));
+			errno, strerror(errno));
 		test_dump_stack();
 		if (fmt) {
 			fputs("  ", stderr);
-- 
2.19.1


  parent reply	other threads:[~2021-03-30  8:10 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-30  8:08 [PATCH v6 00/10] KVM: selftests: some improvement and a new test for kvm page table Yanan Wang
2021-03-30  8:08 ` [PATCH v6 01/10] tools/headers: sync headers of asm-generic/hugetlb_encode.h Yanan Wang
2021-03-30  8:08 ` [PATCH v6 02/10] mm/hugetlb: Add a macro to get HUGETLB page sizes for mmap Yanan Wang
2021-03-30  8:08 ` [PATCH v6 03/10] KVM: selftests: Use flag CLOCK_MONOTONIC_RAW for timing Yanan Wang
2021-04-17 13:23   ` Paolo Bonzini
2021-04-19  6:40     ` wangyanan (Y)
2021-04-19  8:22       ` David Laight
2021-04-19  9:33         ` wangyanan (Y)
2021-03-30  8:08 ` Yanan Wang [this message]
2021-03-30  8:08 ` [PATCH v6 05/10] KVM: selftests: Make a generic helper to get vm guest mode strings Yanan Wang
2021-03-30  8:08 ` [PATCH v6 06/10] KVM: selftests: Add a helper to get system configured THP page size Yanan Wang
2021-03-30  8:08 ` [PATCH v6 07/10] KVM: selftests: Add a helper to get system default hugetlb " Yanan Wang
2021-03-30  8:08 ` [PATCH v6 08/10] KVM: selftests: List all hugetlb src types specified with page sizes Yanan Wang
2021-03-30  8:08 ` [PATCH v6 09/10] KVM: selftests: Adapt vm_userspace_mem_region_add to new helpers Yanan Wang
2021-03-30  8:08 ` [PATCH v6 10/10] KVM: selftests: Add a test for kvm page table code Yanan Wang
2021-04-06  3:05 ` [PATCH v6 00/10] KVM: selftests: some improvement and a new test for kvm page table wangyanan (Y)
2021-04-17 13:22   ` Paolo Bonzini

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