1 #
2 # Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved.
3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 #
5 # This code is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License version 2 only, as
7 # published by the Free Software Foundation. Oracle designates this
8 # particular file as subject to the "Classpath" exception as provided
9 # by Oracle in the LICENSE file that accompanied this code.
10 #
11 # This code is distributed in the hope that it will be useful, but WITHOUT
12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 # version 2 for more details (a copy is included in the LICENSE file that
15 # accompanied this code).
16 #
17 # You should have received a copy of the GNU General Public License version
18 # 2 along with this work; if not, write to the Free Software Foundation,
19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 #
21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 # or visit www.oracle.com if you need additional information or have any
23 # questions.
24 #
25
26 # All valid JVM variants
27 VALID_JVM_VARIANTS="server client minimal core zero custom"
28
29 ################################################################################
30 # Check if the specified JVM variant should be built. To be used in shell if
31 # constructs, like this:
32 # if HOTSPOT_CHECK_JVM_VARIANT(server); then
33 #
34 # Only valid to use after HOTSPOT_SETUP_JVM_VARIANTS has setup variants.
35
36 # Definition kept in one line to allow inlining in if statements.
37 # Additional [] needed to keep m4 from mangling shell constructs.
38 AC_DEFUN([HOTSPOT_CHECK_JVM_VARIANT],
39 [ [ [[ " $JVM_VARIANTS " =~ " $1 " ]] ] ])
40
41 ################################################################################
42 # Check which variants of the JVM that we want to build. Available variants are:
43 # server: normal interpreter, and a tiered C1/C2 compiler
44 # client: normal interpreter, and C1 (no C2 compiler)
45 # minimal: reduced form of client with optional features stripped out
46 # core: normal interpreter only, no compiler
47 # zero: C++ based interpreter only, no compiler
48 # custom: baseline JVM with no default features
49 #
50 AC_DEFUN_ONCE([HOTSPOT_SETUP_JVM_VARIANTS],
51 [
52 AC_ARG_WITH([jvm-variants], [AS_HELP_STRING([--with-jvm-variants],
53 [JVM variants to build, separated by commas (server client minimal core
54 zero custom) @<:@server@:>@])])
55
56 if test "x$with_jvm_variants" = x; then
57 with_jvm_variants="server"
58 fi
59 JVM_VARIANTS_OPT="$with_jvm_variants"
60
61 # Has the user listed more than one variant?
62 # Additional [] needed to keep m4 from mangling shell constructs.
63 if [ [[ "$JVM_VARIANTS_OPT" =~ "," ]] ]; then
64 BUILDING_MULTIPLE_JVM_VARIANTS=true
65 else
66 BUILDING_MULTIPLE_JVM_VARIANTS=false
67 fi
68 # Replace the commas with AND for use in the build directory name.
69 JVM_VARIANTS_WITH_AND=`$ECHO "$JVM_VARIANTS_OPT" | $SED -e 's/,/AND/g'`
70
71 AC_MSG_CHECKING([which variants of the JVM to build])
72 # JVM_VARIANTS is a space-separated list.
73 # Also use minimal, not minimal1 (which is kept for backwards compatibility).
74 JVM_VARIANTS=`$ECHO $JVM_VARIANTS_OPT | $SED -e 's/,/ /g' -e 's/minimal1/minimal/'`
75 AC_MSG_RESULT([$JVM_VARIANTS])
76
77 # Check that the selected variants are valid
78 UTIL_GET_NON_MATCHING_VALUES(INVALID_VARIANTS, $JVM_VARIANTS, \
79 $VALID_JVM_VARIANTS)
80 if test "x$INVALID_VARIANTS" != x; then
81 AC_MSG_NOTICE([Unknown variant(s) specified: "$INVALID_VARIANTS"])
82 AC_MSG_NOTICE([The available JVM variants are: "$VALID_JVM_VARIANTS"])
83 AC_MSG_ERROR([Cannot continue])
84 fi
85
86 # The "main" variant is the one used by other libs to link against during the
87 # build.
88 if test "x$BUILDING_MULTIPLE_JVM_VARIANTS" = "xtrue"; then
89 MAIN_VARIANT_PRIO_ORDER="server client minimal zero"
90 for variant in $MAIN_VARIANT_PRIO_ORDER; do
91 if HOTSPOT_CHECK_JVM_VARIANT($variant); then
92 JVM_VARIANT_MAIN="$variant"
93 break
94 fi
95 done
96 else
97 JVM_VARIANT_MAIN="$JVM_VARIANTS"
98 fi
99
100 AC_SUBST(JVM_VARIANTS)
101 AC_SUBST(VALID_JVM_VARIANTS)
102 AC_SUBST(JVM_VARIANT_MAIN)
103 ])
104
105 ################################################################################
106 # Misc hotspot setup that does not fit elsewhere.
107 #
108 AC_DEFUN_ONCE([HOTSPOT_SETUP_MISC],
109 [
110 if HOTSPOT_CHECK_JVM_VARIANT(zero); then
111 # zero behaves as a platform and rewrites these values. This is a bit weird.
112 # But when building zero, we never build any other variants so it works.
113 HOTSPOT_TARGET_CPU=zero
114 HOTSPOT_TARGET_CPU_ARCH=zero
115 fi
116
117
118 AC_ARG_WITH([hotspot-build-time], [AS_HELP_STRING([--with-hotspot-build-time],
119 [timestamp to use in hotspot version string, empty means determined at build time @<:@source-date/empty@:>@])])
120
121 AC_MSG_CHECKING([what hotspot build time to use])
122
123 if test "x$with_hotspot_build_time" != x; then
124 HOTSPOT_BUILD_TIME="$with_hotspot_build_time"
125 AC_MSG_RESULT([$HOTSPOT_BUILD_TIME (from --with-hotspot-build-time)])
126 else
127 if test "x$SOURCE_DATE" = xupdated; then
128 HOTSPOT_BUILD_TIME=""
129 AC_MSG_RESULT([determined at build time (default)])
130 else
131 # If we have a fixed value for SOURCE_DATE, use it as default
132 HOTSPOT_BUILD_TIME="$SOURCE_DATE_ISO_8601"
133 AC_MSG_RESULT([$HOTSPOT_BUILD_TIME (from --with-source-date)])
134 fi
135 fi
136
137 AC_SUBST(HOTSPOT_BUILD_TIME)
138
139
140 # Override hotspot cpu definitions for ARM platforms
141 if test "x$OPENJDK_TARGET_CPU" = xarm; then
142 HOTSPOT_TARGET_CPU=arm_32
143 HOTSPOT_TARGET_CPU_DEFINE="ARM32"
144 fi
145 ])