On 01/10/2020 11.14, Andrew Jones wrote: > On Thu, Oct 01, 2020 at 11:12:43AM +0200, Andrew Jones wrote: >> On Thu, Oct 01, 2020 at 09:22:32AM +0200, Thomas Huth wrote: >>> Clang complains here: >>> >>> arm/pmu.c:201:16: error: value size does not match register size specified by >>> the constraint and modifier [-Werror,-Wasm-operand-widths] >>> : [pmcr] "r" (pmcr) >>> ^ >>> arm/pmu.c:194:18: note: use constraint modifier "w" >>> " msr pmcr_el0, %[pmcr]\n" >>> ^~~~~~~ >>> %w[pmcr] >>> arm/pmu.c:200:17: error: value size does not match register size specified by >>> the constraint and modifier [-Werror,-Wasm-operand-widths] >>> : [loop] "+r" (loop) >>> ^ >>> arm/pmu.c:196:11: note: use constraint modifier "w" >>> "1: subs %[loop], %[loop], #1\n" >>> ^~~~~~~ >>> %w[loop] >>> arm/pmu.c:200:17: error: value size does not match register size specified by >>> the constraint and modifier [-Werror,-Wasm-operand-widths] >>> : [loop] "+r" (loop) >>> ^ >>> arm/pmu.c:196:20: note: use constraint modifier "w" >>> "1: subs %[loop], %[loop], #1\n" >>> ^~~~~~~ >>> %w[loop] >>> arm/pmu.c:284:35: error: value size does not match register size specified >>> by the constraint and modifier [-Werror,-Wasm-operand-widths] >>> : [addr] "r" (addr), [pmcr] "r" (pmcr), [loop] "r" (loop) >>> ^ >>> arm/pmu.c:274:28: note: use constraint modifier "w" >>> " msr pmcr_el0, %[pmcr]\n" >>> ^~~~~~~ >>> %w[pmcr] >>> arm/pmu.c:284:54: error: value size does not match register size specified >>> by the constraint and modifier [-Werror,-Wasm-operand-widths] >>> : [addr] "r" (addr), [pmcr] "r" (pmcr), [loop] "r" (loop) >>> ^ >>> arm/pmu.c:276:23: note: use constraint modifier "w" >>> " mov x10, %[loop]\n" >>> ^~~~~~~ >>> %w[loop] >>> >>> pmcr should be 64-bit since it is a sysreg, but for loop we can use the >>> "w" modifier. >>> >>> Suggested-by: Drew Jones <drjones@xxxxxxxxxx> > > Not a huge deal, but I use my official first name 'Andrew' on my tags. > I know, I like confusing people by flipping back and forth between > Andrew and Drew... Sorry, IIRC I simply copy-n-pasted your name and e-mail address from the MAINTAINERS file ... maybe you should fix it there to avoid such situations? Thomas
