[Xen-devel] [PATCH] tools: configure correct trace backend for QEMU

[Paul Durrant <paul.durrant@xxxxxxxxxx>]

Newer versions of the QEMU source have replaced the 'stderr' trace
backend with 'log'. This patch adjusts the tools Makefile to test for
the 'log' backend and specify it if it is available.

Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
---
Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Cc: Wei Liu <wei.liu2@xxxxxxxxxx>
---
 tools/Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/Makefile b/tools/Makefile
index 3f45fb9..6440dec 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -240,7 +240,9 @@ subdir-all-qemu-xen-dir: qemu-xen-dir-find
                source=.; \
        fi; \
        cd qemu-xen-dir; \
-       if $$source/scripts/tracetool.py --check-backend --backend stderr ; 
then \
+       if $$source/scripts/tracetool.py --check-backend --backend log ; then \
+               enable_trace_backend='--enable-trace-backend=log'; \
+       elif $$source/scripts/tracetool.py --check-backend --backend stderr ; 
then \
                enable_trace_backend='--enable-trace-backend=stderr'; \
        else \
                enable_trace_backend='' ; \
-- 
2.1.4


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