Messages in this thread | | | Date | Wed, 21 Feb 2007 18:14:08 +0100 (MET) | From | Jan Engelhardt <> | Subject | Re: [patch 03/18] Dont leak NT bit into next task |
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On Feb 21 2007 11:00, Giuseppe Bilotta wrote: >On Wednesday 21 February 2007 02:49, Greg KH wrote: > >> /* frame pointer must be last for get_wchan */ >> -#define SAVE_CONTEXT "pushq %%rbp ; movq %%rsi,%%rbp\n\t" >> -#define RESTORE_CONTEXT "movq %%rbp,%%rsi ; popq %%rbp\n\t" >> +#define SAVE_CONTEXT "pushf ; pushq %%rbp ; movq %%rsi,%%rbp\n\t" >> +#define RESTORE_CONTEXT "movq %%rbp,%%rsi ; popq %%rbp ; popf\t" > >No idea if this is a problem or not, but you forgot a \n after popf.
It is on the edge. RESTORE_CONTEXT will not be passed any arguments, so it is the only thing in a single line, and hence the implicit \n of the source file applies after \t. But yes, it may be dangerous. Better is an explicit \n or semicolon after popf.
Jan -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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