On Sunday 25 February 2007 12:47, Mikael Pettersson wrote:
> The invokation of signal handlers on x86 has several bugs
> in its treatment of the signal number parameter:
>
> - the i386 kernel passes the raw not the translated signal number
> in EAX to non-SA_SIGINFO handlers compiled with -mregparm=3;
> the value passed on the stack is correct, and SA_SIGINFO handlers
> are also invoked correctly
> - the x86-64 kernel's ia32 emulation for SA_SIGINFO handlers also
> passes the wrong (untranslated) signal number in EAX; the value
> on the stack is correct
> - the x86-64 kernel's ia32 emulation for non-SA_SIGINFO handlers
> passes the wrong (untranslated) signal number both on the stack
> and in EAX
Nobody should be using that signal translation code anymore. Certainly
nothing in tree. Perhaps it would be better to just rip it out.
If you have a user you should submit it.
-Andi
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