Remove alloca(0) calls
PR gdb/24653 points out that a gcc snapshot will complain about the
calls to alloca(0) in gdb.
These calls are only needed when using the C alloca. I'm inclined to
think that no current platform needs this, so this patch removes the
calls.
Let me know what you think.
gdb/ChangeLog
2019-06-14 Tom Tromey <tromey@adacore.com>
PR gdb/24653:
* regcache.c (registers_changed): Don't call alloca.
* top.c (execute_command): Don't call alloca.
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