2015-02-28 15:30:56 +01:00
|
|
|
# $NetBSD: hacks.mk,v 1.2 2015/02/28 14:30:56 tnn Exp $
|
2015-02-08 09:41:25 +01:00
|
|
|
|
|
|
|
|
.if !defined(OPENJDK8_HACKS_MK)
|
|
|
|
|
OPENJDK8_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
|
|
|
|
|
|
2015-02-28 15:30:56 +01:00
|
|
|
# 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.
|
|
|
|
|
#
|
|
|
|
|
COMPARE_SUBNORMAL_CMD= ${AWK} 'BEGIN {print (1E-307*1E-1==0?"yes":"no");exit;}'
|
|
|
|
|
BROKEN_IEEE_FLOATS:= ${COMPARE_SUBNORMAL_CMD:sh}
|
|
|
|
|
.if !empty(BROKEN_IEEE_FLOATS:Myes)
|
|
|
|
|
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= langtools/src/share/classes/com/sun/tools/javac/jvm/Items.java
|
|
|
|
|
SUBST_FILES.fpu+= langtools/src/share/classes/com/sun/tools/javac/parser/JavacParser.java
|
|
|
|
|
SUBST_FILES.fpu+= jdk/src/share/classes/sun/misc/DoubleConsts.java
|
|
|
|
|
SUBST_FILES.fpu+= jdk/src/share/classes/sun/misc/FloatConsts.java
|
|
|
|
|
# {Double,Float}Consts.java: Replace problematic MIN_NORMAL literals with alternative representation
|
|
|
|
|
SUBST_SED.fpu= -e 's|2.2250738585072014E-308|0x1.0p-1022|g'
|
|
|
|
|
SUBST_SED.fpu+= -e 's|1.17549435E-38f|0x1.0p-126f|g'
|
|
|
|
|
# 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
|
|
|
|
|
|
2015-02-08 09:41:25 +01:00
|
|
|
.endif
|
