Add script to check for unresolved function calls

v2: add shell shebang
    improve error checks and reporting
v3: fix typo

Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-by: Aaron Watry <awatry@gmail.com>
llvm-svn: 314546

1 files changed, 35 insertions, 0 deletions

diff --git a/libclc/check_external_calls.sh b/libclc/check_external_calls.sh
new file mode 100755
index 00000000000..ad1d8c26150
--- /dev/null
+++ b/libclc/check_external_calls.sh
@@ -0,0 +1,35 @@
+#!/bin/sh
+
+FILE=$1
+if [ ! -f $FILE ]; then
+	echo "ERROR: Not a file: $FILE"
+	exit 3
+fi
+ret=0
+if [ "x$LLVM_CONFIG" = "x" ]; then
+	LLVM_CONFIG=llvm-config
+	echo 'WARNING: $LLVM_CONFIG not set, falling back to $PATH llvm-config'
+	ret=2
+fi
+
+
+BIN_DIR=$($LLVM_CONFIG --bindir)
+DIS="$BIN_DIR/llvm-dis"
+if [ ! -x $DIS ]; then
+	echo "ERROR: Disassembler '$DIS' is not executable"
+	exit 3
+fi
+
+TMP_FILE=$(mktemp)
+
+# Check for calls. Calls to llvm intrinsics are OK
+$DIS < $FILE | grep ' call ' | grep -v '@llvm' > "$TMP_FILE"
+
+if [ $(wc -l < "$TMP_FILE") -ne "0" ]; then
+	echo "ERROR: unresolved calls detected"
+	cat $TMP_FILE
+	ret=1
+else
+	echo "File $FILE is OK"
+fi
+exit $ret