selftests: kvm: Fix a compile error in selftests/kvm/rseq_test.c
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@tencent.com> Message-Id: <20220802071240.84626-1-cloudliang@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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@ -227,7 +227,7 @@ int main(int argc, char *argv[])
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ucall_init(vm, NULL);
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pthread_create(&migration_thread, NULL, migration_worker,
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(void *)(unsigned long)gettid());
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(void *)(unsigned long)syscall(SYS_gettid));
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for (i = 0; !done; i++) {
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vcpu_run(vcpu);
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