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29434801e7
Once upon a time, vdso2c aggressively stripped data from the vDSO
image when generating the final userspace image. This included
stripping the .altinstructions and .altinstr_replacement sections.
Eventually, the stripping process reverted to "objdump -S" and no
longer removed the aforementioned sections, but the comment remained.
Keeping the .alt* sections at the end of the PT_LOAD segment is no
longer necessary, but there's no harm in doing so and it's a helpful
reminder that they don't need to be included in the final vDSO image,
i.e. someone may want to take another stab at zapping/stripping the
unneeded sections.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Acked-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes:
|
||
|---|---|---|
| .. | ||
| vdso32 | ||
| .gitignore | ||
| checkundef.sh | ||
| Makefile | ||
| vclock_gettime.c | ||
| vdso2c.c | ||
| vdso2c.h | ||
| vdso32-setup.c | ||
| vdso-layout.lds.S | ||
| vdso-note.S | ||
| vdso.lds.S | ||
| vdsox32.lds.S | ||
| vgetcpu.c | ||
| vma.c | ||