[Xen-changelog] [xen master] tools: configure correct trace backend for QEMU

[patchbot@xxxxxxx]

commit 46ed6a814c2867260c0ebd9a7399466c801637be
Author:     Paul Durrant <paul.durrant@xxxxxxxxxx>
AuthorDate: Mon May 9 17:43:14 2016 +0100
Commit:     Wei Liu <wei.liu2@xxxxxxxxxx>
CommitDate: Wed May 11 10:03:54 2016 +0100

    tools: configure correct trace backend for QEMU
    
    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>
    Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    Release-acked-by: 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='' ; \
--
generated by git-patchbot for /home/xen/git/xen.git#master

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