tests: use the 'malloc' attribute

Use the gcc 'malloc' attribute for all malloc-like routines in the
unit testing framework.

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>

diff --git a/tests/unit/gpiod-unit.c b/tests/unit/gpiod-unit.c
index 0c462d197199fa1b8277e2e6d4f268628ef7621d..2b8f81b727579ec3b8df905fcf66d4571b851a4b 100644 (file)
--- a/tests/unit/gpiod-unit.c
+++ b/tests/unit/gpiod-unit.c
@@ -19,7 +19,8 @@
 #include <libkmod.h>
 #include <libudev.h>
 
-#define NORETURN __attribute__((noreturn))
+#define NORETURN       __attribute__((noreturn))
+#define MALLOC         __attribute__((malloc))
 
 static const char mockup_devpath[] = "/devices/platform/gpio-mockup/gpiochip";
 
@@ -146,7 +147,7 @@ static GU_PRINTF(1, 2) NORETURN void die_perr(const char *fmt, ...)
        exit(EXIT_FAILURE);
 }
 
-static void * xzalloc(size_t size)
+static MALLOC void * xzalloc(size_t size)
 {
        void *ptr;
 
@@ -159,7 +160,7 @@ static void * xzalloc(size_t size)
        return ptr;
 }
 
-static char * xstrdup(const char *str)
+static MALLOC char * xstrdup(const char *str)
 {
        char *ret;
 
@@ -170,7 +171,7 @@ static char * xstrdup(const char *str)
        return ret;
 }
 
-static GU_PRINTF(2, 3) char * xappend(char *str, const char *fmt, ...)
+static MALLOC GU_PRINTF(2, 3) char * xappend(char *str, const char *fmt, ...)
 {
        char *new, *ret;
        va_list va;