Author: emaste
Date: Tue Jun 12 13:32:42 2018
New Revision: 334998
URL: https://svnweb.freebsd.org/changeset/base/334998

Log:
  linux64: use linux output target for linux_vdso.so
  
  linux_vdso.so provides the vdso for the linuxulator's amd64 target and
  is mapped into a Linux binary's address space.  Thus it should be a
  Linux-style .so, which has the ELF OS/ABI unset.
  
  It turns out that ELF Tool Chain elfcopy/objcopy also has a bug where
  the OS/ABI field is unset, regardless of the specified --output-target,
  so this change is a no-op with the default in-tree toolchain.  This is a
  real fix when using external binutils, and the ELF Tool Chain bug will
  be fixed in the future.
  
  PR:           228934
  Sponsored by: Turing Robotic Industries

Modified:
  head/sys/modules/linux64/Makefile

Modified: head/sys/modules/linux64/Makefile
==============================================================================
--- head/sys/modules/linux64/Makefile   Tue Jun 12 13:26:31 2018        
(r334997)
+++ head/sys/modules/linux64/Makefile   Tue Jun 12 13:32:42 2018        
(r334998)
@@ -36,7 +36,7 @@ linux_locore.o: linux_locore.s linux_assym.h
            ${.IMPSRC} -o ${.TARGET}
 
 ${VDSO}.so: linux_locore.o
-       ${OBJCOPY} --input-target binary --output-target elf64-x86-64-freebsd   
        \
+       ${OBJCOPY} --input-target binary --output-target elf64-x86-64 \
            -S -g --binary-architecture i386:x86-64 linux_locore.o ${.TARGET}
        strip -N _binary_linux_locore_o_size ${.TARGET}
 
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