9ce5cad0aa
This CL adds system register error checking test cases. There're two kinds of error test cases: 1. illegal combination. MRS should be used in this way: MRS <system register>, <general register>. MSR should be used in this way: MSR <general register>, <system register>. Error usage examples: MRS R8, VTCR_EL2 // ERROR "illegal combination" MSR VTCR_EL2, R8 // ERROR "illegal combination" 2. illegal read or write access. Error usage examples: MSR R7, MIDR_EL1 // ERROR "expected writable system register or pstate" MRS OSLAR_EL1, R3 // ERROR "expected readable system register" This CL reads system registers readable and writeable property to check whether they're used with legal read or write access. This property is named AccessFlags in sysRegEnc.go, and it is automatically generated by modifing the system register generator. Change-Id: Ic83d5f372de38d1ecd0df1ca56b354ee157f16b4 Reviewed-on: https://go-review.googlesource.com/c/go/+/194917 Reviewed-by: Cherry Zhang <cherryyz@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> |
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