Re: [RFC PATCH v2 2/6] uprobes/x86: Emulate unconditional rip-relative jmp's

From: Denys Vlasenko
Date: Thu Apr 10 2014 - 08:38:29 EST


On 04/09/2014 09:44 PM, Oleg Nesterov wrote:
> uprobes/x86: Emulate unconditional rip-relative jmp's

I propose "Emulate unconditional relative jmp's"


> + union {
> #ifdef CONFIG_X86_64
> - unsigned long rip_rela_target_address;
> + unsigned long rip_rela_target_address;
> #endif
> + struct {
> + s32 disp;

In x86-speak, jumps and calls have "offsets", not "displacements"

> + u8 ilen;
> + } ttt;
> + };
> };

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