[Bug 228934] objcopy (from elftoolchain) does not set ELF OS/ABI field for binary->ELF conversion
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Tue Jun 12 13:24:25 UTC 2018
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=228934
Bug ID: 228934
Summary: objcopy (from elftoolchain) does not set ELF OS/ABI
field for binary->ELF conversion
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: bin
Assignee: bugs at FreeBSD.org
Reporter: emaste at freebsd.org
One of the steps in building the amd64 64-bit linuxulator vdso is:
> objcopy --input-target binary --output-target elf64-x86-64-freebsd -S -g --binary-architecture i386:x86-64 linux_locore.o linux_vdso.so
This should set the ELF header OS/ABI field to FreeBSD. GNU objcopy does; ELF
Tool Chain objcopy/elfcopy sets it to none/SYSV. With --output-target
elf64-x86-64 GNU objcopy sets it to none/SYSV.
(Using --output-target elf64-x86-64-freebsd is actually a bug in the
Linuxulator Makefile: the vdso is in fact supposed to be a Linux shared object,
which is a separate issue to be fixed.)
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