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72e5ae480d
Pushing registers to the stack for v7M needs to handle three cases: * the "normal" case where we pend exceptions * an "ignore faults" case where we set FSR bits but do not pend exceptions (this is used when we are handling some kinds of derived exception on exception entry) * a "lazy FP stacking" case, where different FSR bits are set and the exception is pended differently Implement this by changing the existing flag argument that tells us whether to ignore faults or not into an enum that specifies which of the 3 modes we should handle. Backports commit a356dacf647506bccdf8ecd23574246a8bf615ac from qemu |
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