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AMD only supports "syscall" from 32-bit compat usermode. Intel and Centaur(?) only support "sysenter" from 32-bit compat usermode. Set the X86 feature bits accordingly, and set up the vdso in accordance with those bits. On the offchance we run on in a 64-bit environment which supports neither syscall nor sysenter from 32-bit mode, then fall back to the int $0x80 vdso. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> |
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.. | ||
vdso32 | ||
.gitignore | ||
Makefile | ||
vclock_gettime.c | ||
vdso32-setup.c | ||
vdso32.S | ||
vdso-layout.lds.S | ||
vdso-note.S | ||
vdso.lds.S | ||
vdso.S | ||
vextern.h | ||
vgetcpu.c | ||
vma.c | ||
vvar.c |