openjdk-8-native: hotspot: handle format-overflow error for gcc >= 7

fixed the format-overflow warnings by patch affected files in
openjdk-8-hotspot

Signed-off-by: Andreas Obergschwandtner <andreas.obergschwandtner@skidata.com>
Signed-off-by: Richard Leitner <richard.leitner@skidata.com>

2 files changed, 26 insertions, 0 deletions

diff --git a/recipes-core/openjdk/openjdk-8-release-172b11-common.inc b/recipes-core/openjdk/openjdk-8-release-172b11-common.inc
index 0cda4bb..ad20585 100644
--- a/recipes-core/openjdk/openjdk-8-release-172b11-common.inc
+++ b/recipes-core/openjdk/openjdk-8-release-172b11-common.inc
@@ -20,6 +20,7 @@ PATCHES_URI = "\
     ${HOTSPOT_UB_PATCH} \
     ${LIBPNG_NEON_PATCH} \
     file://handle_extra_output.patch \
+    file://hotspot-handle-gcc7-format-overflow.patch \
 "
 HOTSPOT_UB_PATCH = "\
     file://0014-hotspot-zero-fix-undefined-behaviour-gcc-v8-fix.patch \
diff --git a/recipes-core/openjdk/patches-openjdk-8/hotspot-handle-gcc7-format-overflow.patch b/recipes-core/openjdk/patches-openjdk-8/hotspot-handle-gcc7-format-overflow.patch
new file mode 100644
index 0000000..83626b3
--- /dev/null
+++ b/recipes-core/openjdk/patches-openjdk-8/hotspot-handle-gcc7-format-overflow.patch
@@ -0,0 +1,25 @@
+# HG changeset patch
+# User Andreas Obergschwandtner <andreas.obergschwandtner@skidata.com>
+# Date 1537519446 -7200
+#      Fri Sep 21 10:44:06 2018 +0200
+# Node ID 213da2c3ee54a558abd30b0230afa40d4b4e7f83
+# Parent  80ee2541504ec08d65da9d968a18a00a69858ce0
+Handle format error for GCC >= 7
+
+diff --git a/hotspot/src/share/vm/adlc/output_c.cpp b/hotspot/src/share/vm/adlc/output_c.cpp
+--- a/hotspot/src/share/vm/adlc/output_c.cpp
++++ b/hotspot/src/share/vm/adlc/output_c.cpp
+@@ -436,9 +436,11 @@
+   for (i = maxcycleused; i > 0; i /= 10)
+     cycledigit++;
+ 
+-  int maskdigit = 0;
+-  for (i = rescount; i > 0; i /= 10)
++  int maskdigit = 1;
++  for (i = rescount / 10; i > 0; i /= 10)
+     maskdigit++;
++  if (maskdigit > 10)
++    maskdigit = 10;
+ 
+   static const char* pipeline_use_cycle_mask = "Pipeline_Use_Cycle_Mask";
+   static const char* pipeline_use_element    = "Pipeline_Use_Element";