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Ian Lance Taylor authored
C code expects CR2, CR3, and CR4 to be preserved across function calls. Preserve the entire CR register across function calls in _rt0_ppc64le_linux_lib and crosscall2. The standard ppc64le call frame uses 8(R1) as the place to save CR; emulate that. It's hard to write a reliable test for this as it requires writing C code that sets CR2, CR3, or CR4 across a call to a Go function. Change-Id: If39e771a5b574602b848227312e83598fe74eab7 Reviewed-on: https://go-review.googlesource.com/44733 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Carlos Eduardo Seo <cseo@linux.vnet.ibm.com> Reviewed-by:
Lynn Boger <laboger@linux.vnet.ibm.com>
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