Provide printf function

Author: volsa

tests/lit/lit.cfg

@@ -1,7 +1,8 @@
-import lit.formats, os, os.path, sys
+import lit.formats, os, os.path, sys, subprocess
 srcDir = os.path.dirname(__file__)
 config.test_format = lit.formats.ShTest(True)
 config.pipefail = False
+rustyRootDirectory = subprocess.check_output("dirname `cargo locate-project --message-format plain`", shell=True).decode("utf-8").strip()
 
 # TODO: These need to be adjusted to the action runner / build.sh file
 # compiler = lit_config.params["COMPILER"]
@@ -13,6 +14,6 @@ config.pipefail = False
 
 # ~/.local/bin/lit -v -DCOMPILER=/home/[email protected]/Development/rusty/target/debug/plc ./tests/lit
 compiler = lit_config.params["COMPILER"]
-config.substitutions.append(('%COMPILE', f'{compiler} -o /tmp/%basename_t.out --linker=cc'))
+config.substitutions.append(('%COMPILE', f'{compiler} -o /tmp/%basename_t.out {rustyRootDirectory}/tests/lit/util/printf.pli --linker=cc'))
 config.substitutions.append(('%RUN', f'/tmp/%basename_t.out'))
 config.substitutions.append(('%CHECK', f'FileCheck-14 --check-prefixes CHECK --allow-unused-prefixes --match-full-lines'))

tests/lit/single/arithmetic/addition.st

@@ -1,14 +1,3 @@
-// TODO: The printf should be a standalone ST file which we link with each other ST file
-{external}
-FUNCTION printf : DINT
-    VAR_INPUT {ref}
-    format : STRING;
-    END_VAR
-    VAR_INPUT
-    args : ...;
-    END_VAR
-END_FUNCTION
-
 // RUN: (%COMPILE %s && %RUN) | %CHECK %s
 FUNCTION main
     VAR

tests/lit/util/printf.pli

@@ -0,0 +1,9 @@
+{external}
+FUNCTION printf: DINT
+VAR_INPUT {ref}
+	str : STRING;
+END_VAR
+VAR_INPUT
+	args: ...;
+END_VAR
+END_FUNCTION