Bryan O'Donoghue wrote:
> Stephen Shirley wrote:
>>http://linuxmafia.com/faq/Kernel/usr-src-linux-symlink.html>>>> Short version: the kernel can take care of backwards compatibility
>> Which violates the given postulate, that the signal number has changed
> from version (x) to version (y).
I don't know for sure, but i suspect it doesn't violate it.
> So if Andrew Morton in a fit of "I'm going to sort some stuff out"
> randomly changed the number the kernel set a task's sig state to, such
> that sigterm and sigkill were now mapped in the opposite direction, a
> script that was grepping the *old* symlinked /usr/src/linux + *libc,
> wouldn't adequately trap that signal number and map it back to the
> correct SIGTERM, SIGINT and those would appear to be reversed... if you
> catch my drift.
All said signals are still passed via system calls. kill() and co. If
such a change was made in the kernel, they'd have to make a new
interface, which would use the new signal numbers, and old code would
still use the older interfaces using the old signal numbers. This is
just guessing tho, someone will surely correct me -)
Steve
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