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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