Implement ELF function offset extraction function

[lttng-tools.git] / src / common / macros.h

diff --git a/src/common/macros.h b/src/common/macros.h
index 7eaf27cdf3787cbf02d5c4fc2bc48eb43632b734..c521aacd5f3df8f582502ce8faa9f29feb1c9063 100644 (file)
--- a/src/common/macros.h
+++ b/src/common/macros.h
@@ -79,10 +79,20 @@ void *zmalloc(size_t len)
 #define min(a, b) ((a) < (b) ? (a) : (b))
 #endif
 
+#ifndef min_t
+#define min_t(type, a, b)      ((type) min(a, b))
+#endif
+
 #ifndef LTTNG_PACKED
 #define LTTNG_PACKED __attribute__((__packed__))
 #endif
 
+/*
+ * Align value to the next multiple of align. Returns val if it already is a
+ * multiple of align. Align must be a power of two.
+ */
+#define ALIGN_TO(value, align) ((value + (align - 1)) & ~(align - 1))
+
 /*
  * LTTNG_HIDDEN: set the hidden attribute for internal functions
  * On Windows, symbols are local unless explicitly exported,
@@ -106,17 +116,11 @@ void *zmalloc(size_t len)
 static inline
 int lttng_strncpy(char *dst, const char *src, size_t dst_len)
 {
-       if (lttng_strnlen(src, dst_len) == dst_len) {
+       if (lttng_strnlen(src, dst_len) >= dst_len) {
                /* Fail since copying would result in truncation. */
                return -1;
        }
-       strncpy(dst, src, dst_len);
-       /*
-        * Be extra careful and put final \0 at the end after strncpy(),
-        * even though we checked the length before. This makes Coverity
-        * happy.
-        */
-       dst[dst_len - 1] = '\0';
+       strcpy(dst, src);
        return 0;
 }