diff --git a/cmds/atrace/atrace.cpp b/cmds/atrace/atrace.cpp
index b500a6b..34dc9fe 100644
--- a/cmds/atrace/atrace.cpp
+++ b/cmds/atrace/atrace.cpp
@@ -17,6 +17,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <getopt.h>
+#include <inttypes.h>
 #include <signal.h>
 #include <stdarg.h>
 #include <stdbool.h>
@@ -368,7 +369,7 @@
 static bool setTagsProperty(uint64_t tags)
 {
     char buf[64];
-    snprintf(buf, 64, "%#llx", tags);
+    snprintf(buf, 64, "%#" PRIx64, tags);
     if (property_set(k_traceTagsProperty, buf) < 0) {
         fprintf(stderr, "error setting trace tags system property\n");
         return false;
@@ -665,7 +666,7 @@
     close(traceFD);
 }
 
-static void handleSignal(int signo)
+static void handleSignal(int /*signo*/)
 {
     if (!g_nohup) {
         g_traceAborted = true;
diff --git a/cmds/flatland/Composers.cpp b/cmds/flatland/Composers.cpp
index 15cdb29..1173a81 100644
--- a/cmds/flatland/Composers.cpp
+++ b/cmds/flatland/Composers.cpp
@@ -122,12 +122,12 @@
     virtual void tearDown() {
     }
 
-    virtual bool compose(GLuint texName, const sp<GLConsumer>& glc) {
+    virtual bool compose(GLuint /*texName*/, const sp<GLConsumer>& /*glc*/) {
         return true;
     }
 
 protected:
-    virtual bool setUp(GLHelper* helper) {
+    virtual bool setUp(GLHelper* /*helper*/) {
         return true;
     }
 
diff --git a/cmds/flatland/GLHelper.cpp b/cmds/flatland/GLHelper.cpp
index 42694b3..05d082b 100644
--- a/cmds/flatland/GLHelper.cpp
+++ b/cmds/flatland/GLHelper.cpp
@@ -332,7 +332,7 @@
 
 static void printShaderSource(const char* const* src) {
     for (size_t i = 0; i < MAX_SHADER_LINES && src[i] != NULL; i++) {
-        fprintf(stderr, "%3d: %s\n", i+1, src[i]);
+        fprintf(stderr, "%3zu: %s\n", i+1, src[i]);
     }
 }
 
diff --git a/cmds/flatland/Main.cpp b/cmds/flatland/Main.cpp
index d6ac3d2..c0e5b3d 100644
--- a/cmds/flatland/Main.cpp
+++ b/cmds/flatland/Main.cpp
@@ -600,7 +600,7 @@
 
     uint32_t runHeight = b.runHeights[run];
     uint32_t runWidth = b.width * runHeight / b.height;
-    printf(" %-*s | %4d x %4d | ", g_BenchmarkNameLen, b.name,
+    printf(" %-*s | %4d x %4d | ", static_cast<int>(g_BenchmarkNameLen), b.name,
             runWidth, runHeight);
     fflush(stdout);
 
@@ -690,8 +690,9 @@
     size_t len = strlen(scenario);
     size_t leftPad = (g_BenchmarkNameLen - len) / 2;
     size_t rightPad = g_BenchmarkNameLen - len - leftPad;
-    printf(" %*s%s%*s | Resolution  | Time (ms)\n", leftPad, "",
-            "Scenario", rightPad, "");
+    printf(" %*s%s%*s | Resolution  | Time (ms)\n",
+            static_cast<int>(leftPad), "",
+            "Scenario", static_cast<int>(rightPad), "");
 }
 
 // Run ALL the benchmarks!
diff --git a/cmds/installd/commands.c b/cmds/installd/commands.c
index 10244ac..f1f6f99 100644
--- a/cmds/installd/commands.c
+++ b/cmds/installd/commands.c
@@ -14,6 +14,7 @@
 ** limitations under the License.
 */
 
+#include <inttypes.h>
 #include <sys/capability.h>
 #include "installd.h"
 #include <diskusage/dirsize.h>
@@ -157,7 +158,7 @@
     if (stat(pkgdir, &s) < 0) return -1;
 
     if (s.st_uid != 0 || s.st_gid != 0) {
-        ALOGE("fixing uid of non-root pkg: %s %lu %lu\n", pkgdir, s.st_uid, s.st_gid);
+        ALOGE("fixing uid of non-root pkg: %s %" PRIu32 " %" PRIu32 "\n", pkgdir, s.st_uid, s.st_gid);
         return -1;
     }
 
diff --git a/cmds/installd/utils.c b/cmds/installd/utils.c
index 0642330..8f4da65 100644
--- a/cmds/installd/utils.c
+++ b/cmds/installd/utils.c
@@ -435,7 +435,7 @@
 {
     cache->numCollected++;
     if ((cache->numCollected%20000) == 0) {
-        ALOGI("Collected cache so far: %d directories, %d files",
+        ALOGI("Collected cache so far: %zd directories, %zd files",
             cache->numDirs, cache->numFiles);
     }
 }
@@ -730,7 +730,7 @@
     int skip = 0;
     char path[PATH_MAX];
 
-    ALOGI("Collected cache files: %d directories, %d files",
+    ALOGI("Collected cache files: %zd directories, %zd files",
         cache->numDirs, cache->numFiles);
 
     CACHE_NOISY(ALOGI("Sorting files..."));