blob: 0c784d63f79622ca49ac577312499029f64fea3e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
# $NetBSD: hacks.mk,v 1.2 2020/05/03 20:07:34 tnn Exp $
.if !defined(OPENJDK11_HACKS_MK)
OPENJDK11_HACKS_MK= # empty
### Ensure we do not pickup external jpeg includes: openjdk uses an internal
### libjpeg with potentially conflicting defines, which breaks at least
### libjpeg-turbo
post-wrapper:
${RM} -f ${BUILDLINK_DIR}/include/jconfig.h
${RM} -f ${BUILDLINK_DIR}/include/jerror.h
${RM} -f ${BUILDLINK_DIR}/include/jmorecfg.h
${RM} -f ${BUILDLINK_DIR}/include/jpeglib.h
# Workaround incorrect constant folding of subnormals in javac when the FPU
# does not handle subnormal arithmetic, like on ARM in Flush-to-zero mode.
# These workarounds avoid underflow conditions during the bootstrap so the
# JDK can correctly build itself. Compiling or running programs other than
# openjdk itself on such hardware may still cause unexpected behaviour.
#
.if !empty(MACHINE_PLATFORM:MNetBSD-*-*arm*) || \
!empty(MACHINE_PLATFORM:MNetBSD-*-aarch64)
PKG_HACKS+= broken-ieee-floats
SUBST_CLASSES+= fpu
SUBST_STAGE.fpu= pre-build
SUBST_MESSAGE.fpu= Broken FPU detected: applying floating point workarounds
SUBST_FILES.fpu= src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/Items.java
SUBST_FILES.fpu+= src/jdk.compiler/share/classes/com/sun/tools/javac/parser/JavacParser.java
SUBST_FILES.fpu+= src/java.base/share/classes/java/lang/Double.java
SUBST_FILES.fpu+= src/java.base/share/classes/java/lang/Float.java
SUBST_FILES.fpu+= src/java.base/share/classes/java/lang/FdLibm.java
# Double.java, FdLibm.java: Replace problematic literals with binary representation
SUBST_SED.fpu+= -e 's|0x1.0p-1022d*|Double.longBitsToDouble(0x10000000000000L)|ig' # MIN_NORMAL
SUBST_SED.fpu+= -e 's|0x0.0000000000001p-1022d*|Double.longBitsToDouble(0x1L)|ig' # MIN_VALUE
# Float.java: Replace problematic literals with binary representation
SUBST_SED.fpu+= -e 's|0x1.0p-126f*|Float.intBitsToFloat(0x800000)|ig' # MIN_NORMAL
SUBST_SED.fpu+= -e 's|0x0.000002P-126f*|Float.intBitsToFloat(0x1)|ig' # MIN_VALUE
# JavacParser.java: avoid bogus "fp.number.too.small" error parsing literals representing Double.MIN_VALUE
SUBST_SED.fpu+= -e 's|n.floatValue() == 0.0f && !isZero(proper)|& \&\& Float.floatToIntBits(n) != 0x1|'
SUBST_SED.fpu+= -e 's|n.doubleValue() == 0.0d && !isZero(proper)|& \&\& Double.doubleToLongBits(n) != 0x1L|'
# Items.java: Avoid invalid constant folding of literal subnormals to positive zero
SUBST_SED.fpu+= -e 's|x == 0.0f && 1.0f / x > 0.0f|Float.floatToIntBits(x) == 0x0|g'
SUBST_SED.fpu+= -e 's|x == 0.0d && 1.0d / x > 0.0d|Double.doubleToLongBits(x) == 0x0L|g'
.endif
.endif
|
