1 files changed, 63 insertions, 0 deletions
diff --git a/test-VFPv2.c b/test-VFPv2.c
new file mode 100644
index 0000000..2db7547
--- /dev/null
+++ b/test-VFPv2.c
@@ -0,0 +1,63 @@
+#include <stdbool.h>
+#include <sys/resource.h>
+#include <signal.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+
+
+#include <sys/auxv.h>
+
+#ifdef AT_PLATFORM
+/* detect ARM ABI version will be optimized away if not used */
+static inline bool need_armv_version(int atleastversion)
+{
+    int version;
+    const char * platform = (const char *)getauxval(AT_PLATFORM);
+    if (platform == NULL)
+        return false;
+    /* at least v5 */
+    if (strlen(platform) < strlen("v5"))
+        return false;
+    if (*(platform++) != 'v')
+        return false;
+
+    char *endstr;
+    errno = 0;
+    version = strtol(platform,&endstr,10);
+    if (errno != 0)
+        return false;
+    if (endstr == platform)
+        return false;
+
+    return (version >= atleastversion);
+
+}
+#endif
+
+const struct rlimit nocore = { 0, 0 };
+
+/* emulate kill by signal */
+void
+termination_handler (int signum)
+{
+    _exit(128+signum);
+}
+
+int main()
+{
+    /* no core */
+    (void) setrlimit(RLIMIT_CORE, &nocore);
+    /* return instead */
+    struct sigaction new_action;
+    new_action.sa_handler = termination_handler;
+    (void) sigemptyset (&new_action.sa_mask);
+    new_action.sa_flags = 0;
+    (void) sigaction (SIGILL, &new_action, NULL);
+    (void) sigaction (SIGBUS, &new_action, NULL);
+    (void) sigaction (SIGSEGV, &new_action, NULL);
+    /* now test */
+    return !(need_armv_version(5) && (getauxval(AT_HWCAP) & HWCAP_ARM_VFP));
+    return 0;
+}