diff --git a/include/debug_logger.h b/include/debug_logger.h
index d5b803f4c2e3f6c2cc59e2727bc4979844242561..6e2ff8935ec9d479a1aae1855c80aaf975cbfcdc 100755
--- a/include/debug_logger.h
+++ b/include/debug_logger.h
@@ -299,8 +299,8 @@ public:
             if (!showError_) {
                 DebugLogger::GetInstance()->Log(level_, HILOG_TAG, "%s\n", buffer_.str().c_str());
             } else {
-                DebugLogger::GetInstance()->Log(level_, HILOG_TAG, "%s (errno %d:%s)\n",
-                                                buffer_.str().c_str(), errno, strerror(errno));
+                DebugLogger::GetInstance()->Log(level_, HILOG_TAG, "%s (errno %d)\n",
+                                                buffer_.str().c_str(), errno);
             }
         }
     }
diff --git a/src/elf_file.cpp b/src/elf_file.cpp
index 285fc585dd41fbb9f9ca38eb90b32a2d3e8e587a..81308f7cef0a4cd7ec84acd8375a16f1fc784d53 100755
--- a/src/elf_file.cpp
+++ b/src/elf_file.cpp
@@ -185,7 +185,7 @@ bool ElfFile::ParseSecNamesStr()
     HLOG_ASSERT(ret == static_cast<int64_t>(secOffset));
     char *secNamesBuf = new (std::nothrow) char[secSize];
     if (secNamesBuf == nullptr) {
-        HLOGE("new secNamesBuf failed");
+        HLOGE("Error in ElfFile::ParseSecNamesStr(): new secNamesBuf failed");
         return false;
     }
     memset_s(secNamesBuf, secSize, '\0', secSize);
diff --git a/src/perf_event_record.cpp b/src/perf_event_record.cpp
index 9b2aa9e781175a75a0691b1e6eb270bf0543e2f1..91b22d3a9b9f565053b1f11a048570faece32313 100755
--- a/src/perf_event_record.cpp
+++ b/src/perf_event_record.cpp
@@ -228,7 +228,10 @@ void PerfRecordSample::ReplaceWithCallStack(size_t originalSize)
 PerfRecordSample::PerfRecordSample(uint8_t *p, const perf_event_attr &attr)
     : PerfEventRecord(p, "sample")
 {
-    HLOG_ASSERT(p);
+    if (p == nullptr) {
+        HLOG_ASSERT(p);
+        return;
+    }
     sampleType_ = attr.sample_type;
 
     p += sizeof(header);
diff --git a/src/perf_file_reader.cpp b/src/perf_file_reader.cpp
index d630fb9055b24377f830bf9504b9c68d5240e3dd..7e0d78363f1c347f57cc4a2bbda1a2eaba74c5c6 100755
--- a/src/perf_file_reader.cpp
+++ b/src/perf_file_reader.cpp
@@ -316,8 +316,9 @@ bool PerfFileReader::ReadRecord(ProcessRecordCB &callback)
 
 bool PerfFileReader::Read(void *buf, size_t len)
 {
-    HLOG_ASSERT(buf != nullptr);
-    if (len == 0) {
+    if (buf == nullptr || len == 0) {
+        HLOG_ASSERT(buf != nullptr);
+        HLOG_ASSERT(len > 0);
         return false;
     }
 
@@ -335,9 +336,11 @@ const perf_file_header &PerfFileReader::GetHeader() const
 
 bool PerfFileReader::Read(char *buf, uint64_t offset, size_t len)
 {
-    HLOG_ASSERT(buf != nullptr);
-    HLOG_ASSERT(len > 0);
-
+    if (buf == nullptr || len == 0) {
+        HLOG_ASSERT(buf != nullptr);
+        HLOG_ASSERT(len > 0);
+        return false;
+    }
     if (fseek(fp_, offset, SEEK_SET) != 0) {
         HLOGE("fseek() failed");
         return false;