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Message-Id: <20241029-arm64-mte-test-logging-v1-1-a128e732e36e@kernel.org>
Date: Tue, 29 Oct 2024 12:34:21 +0000
From: Mark Brown <broonie@...nel.org>
To: Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>, Shuah Khan <shuah@...nel.org>
Cc: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
linux-arm-kernel@...ts.infradead.org, linux-kselftest@...r.kernel.org,
linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>
Subject: [PATCH] kselftest/arm64: Use ksft_perror() to log MTE failures
The logging in the allocation helpers variously uses ksft_print_msg() with
very intermittent logging of errno and perror() (which won't produce KTAP
conformant output) when logging the result of API calls that set errno.
Standardise on using the ksft_perror() helper in these cases so that more
information is available should the tests fail.
Signed-off-by: Mark Brown <broonie@...nel.org>
---
tools/testing/selftests/arm64/mte/mte_common_util.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/tools/testing/selftests/arm64/mte/mte_common_util.c b/tools/testing/selftests/arm64/mte/mte_common_util.c
index 00ffd34c66d301ee7d5c99e6b8d9d5d944520b7f..46958b58801e90ceb79be76f57c7f72b50d43b3c 100644
--- a/tools/testing/selftests/arm64/mte/mte_common_util.c
+++ b/tools/testing/selftests/arm64/mte/mte_common_util.c
@@ -150,13 +150,13 @@ static void *__mte_allocate_memory_range(size_t size, int mem_type, int mapping,
map_flag |= MAP_PRIVATE;
ptr = mmap(NULL, entire_size, prot_flag, map_flag, fd, 0);
if (ptr == MAP_FAILED) {
- ksft_print_msg("FAIL: mmap allocation\n");
+ ksft_perror("mmap()");
return NULL;
}
if (mem_type == USE_MPROTECT) {
if (mprotect(ptr, entire_size, prot_flag | PROT_MTE)) {
+ ksft_perror("mprotect(PROT_MTE)");
munmap(ptr, size);
- ksft_print_msg("FAIL: mprotect PROT_MTE property\n");
return NULL;
}
}
@@ -190,13 +190,13 @@ void *mte_allocate_file_memory(size_t size, int mem_type, int mapping, bool tags
lseek(fd, 0, SEEK_SET);
for (index = INIT_BUFFER_SIZE; index < size; index += INIT_BUFFER_SIZE) {
if (write(fd, buffer, INIT_BUFFER_SIZE) != INIT_BUFFER_SIZE) {
- perror("initialising buffer");
+ ksft_perror("initialising buffer");
return NULL;
}
}
index -= INIT_BUFFER_SIZE;
if (write(fd, buffer, size - index) != size - index) {
- perror("initialising buffer");
+ ksft_perror("initialising buffer");
return NULL;
}
return __mte_allocate_memory_range(size, mem_type, mapping, 0, 0, tags, fd);
@@ -217,12 +217,12 @@ void *mte_allocate_file_memory_tag_range(size_t size, int mem_type, int mapping,
lseek(fd, 0, SEEK_SET);
for (index = INIT_BUFFER_SIZE; index < map_size; index += INIT_BUFFER_SIZE)
if (write(fd, buffer, INIT_BUFFER_SIZE) != INIT_BUFFER_SIZE) {
- perror("initialising buffer");
+ ksft_perror("initialising buffer");
return NULL;
}
index -= INIT_BUFFER_SIZE;
if (write(fd, buffer, map_size - index) != map_size - index) {
- perror("initialising buffer");
+ ksft_perror("initialising buffer");
return NULL;
}
return __mte_allocate_memory_range(size, mem_type, mapping, range_before,
@@ -359,7 +359,7 @@ int create_temp_file(void)
/* Create a file in the tmpfs filesystem */
fd = mkstemp(&filename[0]);
if (fd == -1) {
- perror(filename);
+ ksft_perror(filename);
ksft_print_msg("FAIL: Unable to open temporary file\n");
return 0;
}
---
base-commit: 8e929cb546ee42c9a61d24fae60605e9e3192354
change-id: 20241028-arm64-mte-test-logging-6c6e737b1c62
Best regards,
--
Mark Brown <broonie@...nel.org>
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