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[PULL,06/11] target-i386: Fix build by providing stub kvm_arch_get_supported_cpuid()

Message ID 1385052578-32352-7-git-send-email-pbonzini@redhat.com
State New
Headers show

Commit Message

Paolo Bonzini Nov. 21, 2013, 4:49 p.m. UTC
From: Peter Maydell <peter.maydell@linaro.org>

Fix build failures with clang when KVM is not enabled by
providing a stub version of kvm_arch_get_supported_cpuid().
We retain the compile time check that this function isn't
called when CONFIG_KVM is not set by guarding the stub with
ifndef __OPTIMIZE__ (we assume that an optimizing build will
do sufficient constant folding and dead code elimination to
remove the calls before linking).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target-i386/kvm-stub.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
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Patch

diff --git a/target-i386/kvm-stub.c b/target-i386/kvm-stub.c
index 11429c4..2b9e801 100644
--- a/target-i386/kvm-stub.c
+++ b/target-i386/kvm-stub.c
@@ -16,3 +16,15 @@  bool kvm_allows_irq0_override(void)
 {
     return 1;
 }
+
+#ifndef __OPTIMIZE__
+/* This function is only called inside conditionals which we
+ * rely on the compiler to optimize out when CONFIG_KVM is not
+ * defined.
+ */
+uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function,
+                                      uint32_t index, int reg)
+{
+    abort();
+}
+#endif