Print the error code in the exception injection tracepoint if and only if
the exception has an error code. Define the entire error code sequence
as a set of formatted strings, print empty strings if there's no error
code, and abuse __print_symbolic() by passing it an empty array to coerce
it into printing the error code as a hex string.
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
arch/x86/kvm/trace.h | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index d07428e660e3..385436d12024 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -376,10 +376,11 @@ TRACE_EVENT(kvm_inj_exception,
__entry->reinjected = reinjected;
),
- TP_printk("%s (0x%x)%s",
+ TP_printk("%s%s%s%s%s",
__print_symbolic(__entry->exception, kvm_trace_sym_exc),
- /* FIXME: don't print error_code if not present */
- __entry->has_error ? __entry->error_code : 0,
+ !__entry->has_error ? "" : " (",
+ !__entry->has_error ? "" : __print_symbolic(__entry->error_code, { }),
+ !__entry->has_error ? "" : ")",
__entry->reinjected ? " [reinjected]" : "")
);
--
2.36.0.rc2.479.g8af0fa9b8e-goog
