How to rebuild glibc on Arch Linux?

It seems like MATLAB is royally screwed up on Linux, because it “dynamically loads some libs with static TLS”, which doesn’t mean anything to me other than I get bunches of errors.

The suggested work around is to rebuild glibc with a larger DTV_SURPLUS. This leaves me with two questions:

  • How do I rebuild glibc on Arch Linux to increase the DTV_SURPLUS? I looked at the PKGBUILD in the abs tree and didn’t see DTV_SURPLUS anywhere, so I don’t know where to make the change.
  • What value do I set DTV_SURPLUS to be? Presumably, setting it to
    2^64 would both be overkill and a bad idea.

The issue with MATLAB can be seen with the following MWE in R2014a:

>> ones(10)*ones(10);
>> doc('help');
Exception in thread "XPCOMMessageLoop" java.lang.UnsatisfiedLinkError: /opt/matlab/sys/jxbrowser/glnxa64/xulrunner/xulrunner-linux-64/libxul.so: dlopen: cannot load any more object with static TLS
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary1(Unknown Source)
    at java.lang.ClassLoader.loadLibrary0(Unknown Source)
    at java.lang.ClassLoader.loadLibrary(Unknown Source)
    at java.lang.Runtime.load0(Unknown Source)
    at java.lang.System.load(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.impl.linux.LinuxMozillaToolkit.c(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.impl.linux.LinuxMozillaToolkit.a(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.MozillaToolkit.initialize(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.AppShellXPCOMThread$b.run(Unknown Source)
Exception in thread "XPCOMMessageLoop" java.lang.UnsatisfiedLinkError: /opt/matlab/sys/jxbrowser/glnxa64/xulrunner/xulrunner-linux-64/libxul.so: dlopen: cannot load any more object with static TLS
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary1(Unknown Source)
    at java.lang.ClassLoader.loadLibrary0(Unknown Source)
    at java.lang.ClassLoader.loadLibrary(Unknown Source)
    at java.lang.Runtime.load0(Unknown Source)
    at java.lang.System.load(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.impl.linux.LinuxMozillaToolkit.c(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.impl.linux.LinuxMozillaToolkit.a(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.MozillaToolkit.initialize(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.AppShellXPCOMThread$b.run(Unknown Source)
Exception in thread "XPCOMMessageLoop" java.lang.UnsatisfiedLinkError: /opt/matlab/sys/jxbrowser/glnxa64/xulrunner/xulrunner-linux-64/libxul.so: dlopen: cannot load any more object with static TLS
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary1(Unknown Source)
    at java.lang.ClassLoader.loadLibrary0(Unknown Source)
    at java.lang.ClassLoader.loadLibrary(Unknown Source)
    at java.lang.Runtime.load0(Unknown Source)
    at java.lang.System.load(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.impl.linux.LinuxMozillaToolkit.c(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.impl.linux.LinuxMozillaToolkit.a(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.MozillaToolkit.initialize(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.AppShellXPCOMThread$b.run(Unknown Source)
Exception in thread "XPCOMMessageLoop" java.lang.UnsatisfiedLinkError: /opt/matlab/sys/jxbrowser/glnxa64/xulrunner/xulrunner-linux-64/libxul.so: dlopen: cannot load any more object with static TLS
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary1(Unknown Source)
    at java.lang.ClassLoader.loadLibrary0(Unknown Source)
    at java.lang.ClassLoader.loadLibrary(Unknown Source)
    at java.lang.Runtime.load0(Unknown Source)
    at java.lang.System.load(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.impl.linux.LinuxMozillaToolkit.c(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.impl.linux.LinuxMozillaToolkit.a(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.MozillaToolkit.initialize(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.AppShellXPCOMThread$b.run(Unknown Source)
Exception in thread "XPCOMMessageLoop" java.lang.UnsatisfiedLinkError: /opt/matlab/sys/jxbrowser/glnxa64/xulrunner/xulrunner-linux-64/libxul.so: dlopen: cannot load any more object with static TLS
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary1(Unknown Source)
    at java.lang.ClassLoader.loadLibrary0(Unknown Source)
    at java.lang.ClassLoader.loadLibrary(Unknown Source)
    at java.lang.Runtime.load0(Unknown Source)
    at java.lang.System.load(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.impl.linux.LinuxMozillaToolkit.c(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.impl.linux.LinuxMozillaToolkit.a(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.MozillaToolkit.initialize(Unknown Source)
    at com.teamdev.jxbrowser.gecko.xpcom.AppShellXPCOMThread$b.run(Unknown Source)

Where ones(10)*ones(10); loads the dynamically linked libiomp5.so BLAS library, which seems to not leave enough space for the dynamically linked libxul.so required for the HTML based documentation browser. Potentially I can work around this particular MWE by using a patched version of libiomp5.so, but the general problem still persists.

Asked By: StrongBad

||

To recompile glibc with custom DTV_SURPLUS and override the existing version:

  1. Copy /var/abs/core/glibc to another directory so you can write to it without being root, then cd to that directory.
  2. Use makepkg -o to download and extract the source code without building it(because we will edit the source code before building).
  3. Edit DTV_SURPLUS located in src/glibc-<version>/sysdeps/generic/ldsodefs.h. You may just change the number in the line containing DTV_SURPLUS.
  4. Build it with makepkg -e.
  5. Install the custom version with sudo pacman -U <package file>. This will override the official package previously installed.

If you don’t want to override the existing version, you can use chroot, or maybe LD_PRELOAD will also work.

However, I’m unsure what should DTV_SURPLUS be.

Answered By: user4098326
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