[Qemu-devel] [PATCH 1/2] stubs: add error_report()

[Stefan Hajnoczi <stefanha@redhat.com>]

The error report function is preferred over fprintf(stderr, ...) since
it prints to the current monitor, if any.

Add a stub error_report() implementation that just prints to stderr.
This is suitable in environments where there is no QEMU monitor, such as
libcacard.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 stubs/Makefile.objs  |  1 +
 stubs/error-report.c | 12 ++++++++++++
 2 files changed, 13 insertions(+)
 create mode 100644 stubs/error-report.c

diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs
index f306cba..f84d597 100644
--- a/stubs/Makefile.objs
+++ b/stubs/Makefile.objs
@@ -3,6 +3,7 @@ stub-obj-y += clock-warp.o
 stub-obj-y += cpu-get-clock.o
 stub-obj-y += cpu-get-icount.o
 stub-obj-y += dump.o
+stub-obj-y += error-report.o
 stub-obj-y += fdset-add-fd.o
 stub-obj-y += fdset-find-fd.o
 stub-obj-y += fdset-get-fd.o
diff --git a/stubs/error-report.c b/stubs/error-report.c
new file mode 100644
index 0000000..e39d0a9
--- /dev/null
+++ b/stubs/error-report.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+#include "qemu/error-report.h"
+
+void error_report(const char *fmt, ...)
+{
+    va_list ap;
+
+    va_start(ap, fmt);
+    vfprintf(stderr, fmt, ap);
+    va_end(ap);
+    fprintf(stderr, "\n");
+}
-- 
1.8.3.1