8241721: Change to GCC 9.2 for building on Linux at Oracle

Reviewed-by: erikj

Author: vidmik

doc/building.html

@@ -283,7 +283,7 @@ <h2 id="native-compiler-toolchain-requirements">Native Compiler (Toolchain) Requ
 <tbody>
 <tr class="odd">
 <td style="text-align: left;">Linux</td>
-<td style="text-align: left;">gcc 8.3.0</td>
+<td style="text-align: left;">gcc 9.2.0</td>
 </tr>
 <tr class="even">
 <td style="text-align: left;">macOS</td>
@@ -302,7 +302,7 @@ <h2 id="native-compiler-toolchain-requirements">Native Compiler (Toolchain) Requ
 <p>All compilers are expected to be able to compile to the C99 language standard, as some C99 features are used in the source code. Microsoft Visual Studio doesn't fully support C99 so in practice shared code is limited to using C99 features that it does support.</p>
 <h3 id="gcc">gcc</h3>
 <p>The minimum accepted version of gcc is 5.0. Older versions will generate a warning by <code>configure</code> and are unlikely to work.</p>
-<p>The JDK is currently known to be able to compile with at least version 8.3 of gcc.</p>
+<p>The JDK is currently known to be able to compile with at least version 9.2 of gcc.</p>
 <p>In general, any version between these two should be usable.</p>
 <h3 id="clang">clang</h3>
 <p>The minimum accepted version of clang is 3.2. Older versions will not be accepted by <code>configure</code>.</p>

doc/building.md

@@ -327,7 +327,7 @@ issues.
 
  Operating system   Toolchain version
  ------------------ -------------------------------------------------------
- Linux              gcc 8.3.0
+ Linux              gcc 9.2.0
  macOS              Apple Xcode 10.1 (using clang 10.0.0)
  Solaris            Oracle Solaris Studio 12.6 (with compiler version 5.15)
  Windows            Microsoft Visual Studio 2017 update 15.9.16
@@ -342,7 +342,7 @@ features that it does support.
 The minimum accepted version of gcc is 5.0. Older versions will generate a warning
 by `configure` and are unlikely to work.
 
-The JDK is currently known to be able to compile with at least version 8.3 of
+The JDK is currently known to be able to compile with at least version 9.2 of
 gcc.
 
 In general, any version between these two should be usable.

make/conf/jib-profiles.js

@@ -972,7 +972,7 @@ var getJibProfilesProfiles = function (input, common, data) {
 var getJibProfilesDependencies = function (input, common) {
 
     var devkit_platform_revisions = {
-        linux_x64: "gcc8.3.0-OL6.4+1.0",
+        linux_x64: "gcc9.2.0-OL6.4+1.0",
         macosx_x64: "Xcode10.1-MacOSX10.14+1.0",
         solaris_x64: "SS12u4-Solaris11u1+1.0",
         solaris_sparcv9: "SS12u6-Solaris11u3+1.0",

make/devkit/Tools.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2013, 2019, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2013, 2020, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -87,8 +87,16 @@ endif
 # Define external dependencies
 
 # Latest that could be made to work.
-GCC_VER := 8.3.0
-ifeq ($(GCC_VER), 8.3.0)
+GCC_VER := 9.2.0
+ifeq ($(GCC_VER), 9.2.0)
+  gcc_ver := gcc-9.2.0
+  binutils_ver := binutils-2.34
+  ccache_ver := 3.7.3
+  mpfr_ver := mpfr-3.1.5
+  gmp_ver := gmp-6.1.2
+  mpc_ver := mpc-1.0.3
+  gdb_ver := gdb-8.3
+else ifeq ($(GCC_VER), 8.3.0)
   gcc_ver := gcc-8.3.0
   binutils_ver := binutils-2.32
   ccache_ver := 3.7.3