nmi_backtrace: generate one-line reports for idle cpus

[cascardo/linux.git] / scripts / gcc-plugin.sh

diff --git a/scripts/gcc-plugin.sh b/scripts/gcc-plugin.sh
index fb92075..b65224b 100755 (executable)
--- a/scripts/gcc-plugin.sh
+++ b/scripts/gcc-plugin.sh
@@ -1,5 +1,12 @@
 #!/bin/sh
 srctree=$(dirname "$0")
+
+SHOW_ERROR=
+if [ "$1" = "--show-error" ] ; then
+       SHOW_ERROR=1
+       shift || true
+fi
+
 gccplugins_dir=$($3 -print-file-name=plugin)
 plugincc=$($1 -E -x c++ - -o /dev/null -I"${srctree}"/gcc-plugins -I"${gccplugins_dir}"/include 2>&1 <<EOF
 #include "gcc-common.h"
@@ -13,6 +20,9 @@ EOF
 
 if [ $? -ne 0 ]
 then
+       if [ -n "$SHOW_ERROR" ] ; then
+               echo "${plugincc}" >&2
+       fi
        exit 1
 fi
 
@@ -48,4 +58,8 @@ then
        echo "$2"
        exit 0
 fi
+
+if [ -n "$SHOW_ERROR" ] ; then
+       echo "${plugincc}" >&2
+fi
 exit 1