Ensure that the jump buffer is appropriately aligned. #86
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The stack capturing mechanism in
STACK_CONTEXT_BEGIN
puts theStackContextStruct
on the stack, where it will later be scanned usingTraceScanArea
. ThejumpBuffer
must be allocated on the stack at an address with suitable alignment so thatTraceScanArea
will correctly fix any addresses therein. On platform XCA6LL,jmp_buf
is declared as an array ofint
, which has 4-byte alignment, but we need it to have 8-byte alignment in order to correctly interpret the contents.This addresses fifteen of the seventeen MMQA test failures in issue #84.