On Tue, Aug 02, 2022, Jinrong Liang wrote: > From: Jinrong Liang <cloudliang@xxxxxxxxxxx> > > The following warning appears when executing: > make -C tools/testing/selftests/kvm > > rseq_test.c: In function ‘main’: > rseq_test.c:237:33: warning: implicit declaration of function ‘gettid’; did you mean ‘getgid’? [-Wimplicit-function-declaration] > (void *)(unsigned long)gettid()); > ^~~~~~ > getgid > /usr/bin/ld: /tmp/ccr5mMko.o: in function `main': > ../kvm/tools/testing/selftests/kvm/rseq_test.c:237: undefined reference to `gettid' > collect2: error: ld returned 1 exit status > make: *** [../lib.mk:173: ../kvm/tools/testing/selftests/kvm/rseq_test] Error 1 > > Use the more compatible syscall(SYS_gettid) instead of gettid() to fix it. > More subsequent reuse may cause it to be wrapped in a lib file. > > Signed-off-by: Jinrong Liang <cloudliang@xxxxxxxxxxx> > --- Reviewed-by: Sean Christopherson <seanjc@xxxxxxxxxx> Paolo, do you want to grab this for 6.0? It doesn't look like we're going to have a more elegant solution anytime soon...
