JDK-8196218 : [linux] libfontmanager should be linked against headless awt library
  • Type: Bug
  • Component: client-libs
  • Sub-Component: 2d
  • Affected Version: 8u161,10
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: linux
  • Submitted: 2018-01-26
  • Updated: 2018-03-14
  • Resolved: 2018-01-30
The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
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JDK 11
11 b01Fixed
Related Reports
Relates :  
JDK-8196509 - Linux UI applications broken by the build change for JDK-8196218
Relates :  
JDK-8071710 - [solaris] libfontmanager should be linked against headless awt library
Relates :  
JDK-8196516 - libfontmanager must be built with LDFLAGS allowing unresolved symbols
Description
When building libfontmanager.so on Linux with link flags "-Wl,-z,defs" (JDK 8) or "-Xlinker -z -Xlinker defs" (JDK 10) the build fails with:

/usr/bin/printf "* For target support_native_java.desktop_libfontmanager_BUILD_LIBFONTMANAGER_link:\n" 
* For target support_native_java.desktop_libfontmanager_BUILD_LIBFONTMANAGER_link:
(/usr/bin/grep -v -e "^Note: including file:" <  /disk/openjdk/upstream-sources/openjdk-hs/build/linux-x86_64-normal-server-release/make-support/failure-logs/support_native_java.desktop_libfontmanager_BUILD_LIBFONTMANAGER_link.log || true) | /usr/bin/head -n 12 
/disk/openjdk/upstream-sources/openjdk-hs/build/linux-x86_64-normal-server-release/support/native/java.desktop/libfontmanager/X11FontScaler.o: In function `Java_sun_font_NativeStrikeDisposer_freeNativeScalerContext':
/disk/openjdk/upstream-sources/openjdk-hs/src/java.desktop/unix/native/libfontmanager/X11FontScaler.c:57: undefined reference to `AWTFreeFont'
/disk/openjdk/upstream-sources/openjdk-hs/build/linux-x86_64-normal-server-release/support/native/java.desktop/libfontmanager/X11FontScaler.o: In function `Java_sun_font_NativeStrike_createScalerContext':
/disk/openjdk/upstream-sources/openjdk-hs/src/java.desktop/unix/native/libfontmanager/X11FontScaler.c:96: undefined reference to `AWTLoadFont'
/disk/openjdk/upstream-sources/openjdk-hs/src/java.desktop/unix/native/libfontmanager/X11FontScaler.c:107: undefined reference to `AWTFontMinByte1'
/disk/openjdk/upstream-sources/openjdk-hs/src/java.desktop/unix/native/libfontmanager/X11FontScaler.c:108: undefined reference to `AWTFontMinCharOrByte2'
/disk/openjdk/upstream-sources/openjdk-hs/src/java.desktop/unix/native/libfontmanager/X11FontScaler.c:109: undefined reference to `AWTFontMaxByte1'
/disk/openjdk/upstream-sources/openjdk-hs/src/java.desktop/unix/native/libfontmanager/X11FontScaler.c:110: undefined reference to `AWTFontMaxCharOrByte2'
/disk/openjdk/upstream-sources/openjdk-hs/src/java.desktop/unix/native/libfontmanager/X11FontScaler.c:112: undefined reference to `AWTFontDefaultChar'
/disk/openjdk/upstream-sources/openjdk-hs/build/linux-x86_64-normal-server-release/support/native/java.desktop/libfontmanager/X11FontScaler.o: In function `Java_sun_font_NativeFont_fontExists':
/disk/openjdk/upstream-sources/openjdk-hs/src/java.desktop/unix/native/libfontmanager/X11FontScaler.c:163: undefined reference to `AWTCountFonts'
/disk/openjdk/upstream-sources/openjdk-hs/build/linux-x86_64-normal-server-release/support/native/java.desktop/libfontmanager/X11FontScaler.o: In function `Java_sun_font_NativeFont_haveBitmapFonts':
if test `/usr/bin/wc -l < /disk/openjdk/upstream-sources/openjdk-hs/build/linux-x86_64-normal-server-release/make-support/failure-logs/support_native_java.desktop_libfontmanager_BUILD_LIBFONTMANAGER_link.log` -gt 12; then /usr/bin/echo "   ... (rest of output omitted)" ; fi 
   ... (rest of output omitted)
/usr/bin/printf "\n* All command lines available in /disk/openjdk/upstream-sources/openjdk-hs/build/linux-x86_64-normal-server-release/make-support/failure-logs.\n"

Or on JDK 8 with:

/disk/openjdk/upstream-sources/openjdk8u-dev/build/linux-x86_64-normal-server-release/jdk/objs/libfontmanager/X11FontScaler.o: In function `Java_sun_font_NativeStrikeDisposer_freeNativeScalerContext':
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:57: undefined reference to `AWTFreeFont'
/disk/openjdk/upstream-sources/openjdk8u-dev/build/linux-x86_64-normal-server-release/jdk/objs/libfontmanager/X11FontScaler.o: In function `Java_sun_font_NativeStrike_createScalerContext':
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:96: undefined reference to `AWTLoadFont'
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:107: undefined reference to `AWTFontMinByte1'
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:108: undefined reference to `AWTFontMinCharOrByte2'
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:109: undefined reference to `AWTFontMaxByte1'
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:110: undefined reference to `AWTFontMaxCharOrByte2'
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:112: undefined reference to `AWTFontDefaultChar'
/disk/openjdk/upstream-sources/openjdk8u-dev/build/linux-x86_64-normal-server-release/jdk/objs/libfontmanager/X11FontScaler.o: In function `Java_sun_font_NativeFont_fontExists':
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:163: undefined reference to `AWTCountFonts'
/disk/openjdk/upstream-sources/openjdk8u-dev/build/linux-x86_64-normal-server-release/jdk/objs/libfontmanager/X11FontScaler.o: In function `Java_sun_font_NativeFont_haveBitmapFonts':
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:187: undefined reference to `AWTCountFonts'
/disk/openjdk/upstream-sources/openjdk8u-dev/build/linux-x86_64-normal-server-release/jdk/objs/libfontmanager/X11FontScaler.o: In function `Java_sun_font_NativeFont_countGlyphs':
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:213: undefined reference to `AWTFreeFont'
/disk/openjdk/upstream-sources/openjdk8u-dev/build/linux-x86_64-normal-server-release/jdk/objs/libfontmanager/X11FontScaler.o: In function `Java_sun_font_NativeFont_getGlyphAdvance':
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:254: undefined reference to `AWTFontPerChar'
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:255: undefined reference to `AWTFontPerChar'
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:256: undefined reference to `AWTCharAdvance'
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:263: undefined reference to `AWTFontTextExtents16'
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:264: undefined reference to `AWTCharAdvance'
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:265: undefined reference to `AWTFreeChar'
/disk/openjdk/upstream-sources/openjdk8u-dev/build/linux-x86_64-normal-server-release/jdk/objs/libfontmanager/X11FontScaler.o: In function `Java_sun_font_NativeFont_getGlyphImageNoDefault':
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:288: undefined reference to `AWTFontGenerateImage'
/disk/openjdk/upstream-sources/openjdk8u-dev/build/linux-x86_64-normal-server-release/jdk/objs/libfontmanager/X11FontScaler.o: In function `Java_sun_font_NativeFont_getGlyphImage':
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:309: undefined reference to `AWTFontGenerateImage'
/disk/openjdk/upstream-sources/openjdk8u-dev/build/linux-x86_64-normal-server-release/jdk/objs/libfontmanager/X11FontScaler.o: In function `Java_sun_font_NativeFont_getFontMetrics':
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:330: undefined reference to `AWTFontAscent'
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:331: undefined reference to `AWTFontDescent'
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:332: undefined reference to `AWTFontMaxBounds'
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11FontScaler.c:332: undefined reference to `AWTCharAdvance'
/disk/openjdk/upstream-sources/openjdk8u-dev/build/linux-x86_64-normal-server-release/jdk/objs/libfontmanager/X11TextRenderer.o: In function `Java_sun_font_X11TextRenderer_doDrawGlyphList':
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/solaris/native/sun/font/X11TextRenderer.c:71: undefined reference to `AWTDrawGlyphList'
/disk/openjdk/upstream-sources/openjdk8u-dev/build/linux-x86_64-normal-server-release/jdk/objs/libfontmanager/sunFont.o: In function `Java_sun_font_StrikeCache_freeIntMemory':
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/share/native/sun/font/sunFont.c:260: undefined reference to `AccelGlyphCache_RemoveAllCellInfos'
/disk/openjdk/upstream-sources/openjdk8u-dev/build/linux-x86_64-normal-server-release/jdk/objs/libfontmanager/sunFont.o: In function `Java_sun_font_StrikeCache_freeLongMemory':
/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/src/share/native/sun/font/sunFont.c:291: undefined reference to `AccelGlyphCache_RemoveAllCellInfos'
collect2: error: ld returned 1 exit status
gmake[2]: *** [lib/Awt2dLibraries.gmk:908: /disk/openjdk/upstream-sources/openjdk8u-dev/build/linux-x86_64-normal-server-release/jdk/lib/amd64/libfontmanager.so] Error 1
gmake[2]: *** Waiting for unfinished jobs....
gmake[2]: Leaving directory '/disk/openjdk/upstream-sources/openjdk8u-dev/jdk/make'

As it turns out libawt_headless.so exports the missing symbols, but libfontmanager.so's link command does not include -lawt_headless.

$ nm -D build/linux-x86_64-normal-server-release/jdk/lib/amd64/libawt_headless.so | grep T | grep AWTDrawGlyphList
0000000000003710 T AWTDrawGlyphList

libawt.so (the non-headless version) on the other hand doesn't have it:

$ nm -D build/linux-x86_64-normal-server-release/jdk/lib/amd64/libawt.so | grep T | grep AWTDrawGlyphList
<nothing>
Comments
This caused regressions in UI tests, so has been backed out by JDK-8196509.
31-01-2018
During review it has been discovered that filtering of LDFLAGS seems to be ancient technical debt with no clear answer as to why it was added in the first place. The patch for this issue will remove the filtering.
29-01-2018
Review thread: http://mail.openjdk.java.net/pipermail/2d-dev/2018-January/008869.html
26-01-2018
Interestingly, there is this snippet in JDK 10's make/lib/Awt2dLibraries.gmk: LDFLAGS := $(subst -Wl$(COMMA)-z$(COMMA)defs,,$(LDFLAGS_JDKLIB)) $(LDFLAGS_CXX_JDK) \ $(call SET_SHARED_LIBRARY_ORIGIN), \ On JDK 8 I see this: LDFLAGS := $(subst -Xlinker -z -Xlinker defs,,$(LDFLAGS_JDKLIB)) $(LDFLAGS_CXX_JDK) \ $(call SET_SHARED_LIBRARY_ORIGIN), \ On the other hand, JDK-8071710 seems to suggest that this does not occur on solaris or aix as it links with libawt_headless already. See LDFLAGS_SUFFIX_solaris and LDFLAGS_SUFFIX_aix as well as this: ifneq (, $(findstring $(OPENJDK_TARGET_OS), solaris aix linux)) $(BUILD_LIBFONTMANAGER): $(BUILD_LIBAWT_HEADLESS) endif
26-01-2018
See this downstream bug: https://bugzilla.redhat.com/show_bug.cgi?id=1538767
26-01-2018