import-trace: add import of ELF symbols

This change adds the capability to import an ELF's symbols
into the database. The functionality is implemented via a
shell script and will be merged into "import-trace", when
it's being cleaned up sometime in the near future, but for
now this suffices.

Change-Id: I933783659674fcf31f5181fc13661fe10f5b9fe8

tools/import-trace/CMakeLists.txt

@@ -42,3 +42,4 @@ if (BUILD_LLVM_DISASSEMBLER)
 endif (BUILD_LLVM_DISASSEMBLER)
 
 install(TARGETS import-trace RUNTIME DESTINATION bin)
+install(PROGRAMS import-symbols.sh DESTINATION bin)

tools/import-trace/import-symbols.sh

@@ -0,0 +1,68 @@
+#!/bin/bash
+# TODO: make this part of import-trace
+set -e
+
+# handle command line arguments
+if [ ! $# -eq 4 ]; then
+	echo "usage: $0 DATABASE VARIANT BENCHMARK ELF" >&2
+	exit 1
+fi
+
+DATABASE=$1
+VARIANT=$2
+BENCHMARK=$3
+ELF=$4
+TABLE=symbol
+MYSQL="mysql -B --quick $DATABASE"
+
+
+# check if ELF exists
+if [ ! -e $ELF ]; then
+	echo "$ELF not found" >&2
+	exit 1
+fi
+echo "importing $VARIANT/$BENCHMARK symbols from $ELF ..."
+
+
+# get fail*'s variant_id
+ID=$(echo "SELECT id FROM variant WHERE variant='$VARIANT' AND benchmark='$BENCHMARK'" | $MYSQL -N)
+if [ -z $ID ]; then
+	echo "no such variant/benchmark!" >&2
+	exit 1
+fi
+
+
+# generate huge SQL statement and execute
+$MYSQL <<EOT
+CREATE TABLE IF NOT EXISTS $TABLE (
+variant_id INT NOT NULL,
+address INT UNSIGNED NOT NULL,
+size INT UNSIGNED NOT NULL,
+name VARCHAR(255) NOT NULL,
+PRIMARY KEY (variant_id, address)
+) ENGINE=MyISAM;
+EOT
+(
+	# clean symbol table
+	echo "DELETE FROM $TABLE WHERE variant_id = $ID;"
+
+	LAST_ADDR=
+	LAST_SYMBOL=
+	nm -n -C $ELF | egrep '^[0-9a-fA-F]' | while read line
+	do
+		ADDR=$(echo "$line"|awk '{print $1}')
+		SYMBOL=$(echo "$line"|awk '{for (i=1; i<=NF-2; i++) $i = $(i+2); NF-=2; print}')
+
+		if [ $LAST_ADDR ]; then
+			# only create INSERT-line, if $ADDR is new to us
+			if [ ! $ADDR = $LAST_ADDR ]; then
+				echo "INSERT INTO $TABLE (variant_id, address, size, name) VALUES "
+				echo "($ID, cast(0x$LAST_ADDR AS UNSIGNED), CAST(0x$ADDR AS UNSIGNED)-CAST(0x$LAST_ADDR AS UNSIGNED), '$LAST_SYMBOL');"
+			fi
+		fi
+		LAST_ADDR=$ADDR
+		LAST_SYMBOL=$SYMBOL
+	done
+) | $MYSQL
+
+echo "ANALYZE TABLE $TABLE;" | $MYSQL