Messages in this thread | | | Date | Thu, 9 Jan 2003 12:18:01 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: [PATCH] Use %ebp rather than %ebx for thread_info pointer |
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On Thu, 9 Jan 2003, Luca Barbieri wrote: > > This patch changes assembly code that accesses thread_info to use %ebp > rather than %ebx. > > This allows me to take advantage of the fact that %ebp is restored by > user mode in the sysenter register pop removal patch.
Hmm.. Did you check what fork/execve/vm86 do? I know at least the vm86() stuff sets up %ebx before calling the asm functions in entry.S, I bet those need to be changed to use %ebp too with something like this.
Linus
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