Added test for arguments on stack.

scripts/travis.sh

@@ -40,3 +40,7 @@ tests/multiple-dlopens-3/run.sh $ARCH
 if ! echo "$ARCH" | grep -q powerpc; then
   tests/many-functions/run.sh $ARCH
 fi
+if ! echo "$ARCH" | grep -q 'mips64\|powerpc'; then
+  # FIXME: enable for all platforms !
+  tests/stack-args/run.sh $ARCH
+fi

tests/stack-args/interposed.c

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2024 Yury Gribov
+ *
+ * The MIT License (MIT)
+ * 
+ * Use of this source code is governed by MIT license that can be
+ * found in the LICENSE.txt file.
+ */
+
+#include <stdio.h>
+#include "interposed.h"
+
+__attribute__((visibility("default")))
+void foo(int x0, int x1, int x2, int x3, int x4, int x5, int x6, int x7, int x8, int x9, int x10, int x11, int x12, int x13, int x14, int x15) {
+  printf("%d ", x0);
+  printf("%d ", x1);
+  printf("%d ", x2);
+  printf("%d ", x3);
+  printf("%d ", x4);
+  printf("%d ", x5);
+  printf("%d ", x6);
+  printf("%d ", x7);
+  printf("%d ", x8);
+  printf("%d ", x9);
+  printf("%d ", x10);
+  printf("%d ", x11);
+  printf("%d ", x12);
+  printf("%d ", x13);
+  printf("%d ", x14);
+  printf("%d\n", x15);
+}

tests/stack-args/interposed.h

@@ -0,0 +1,15 @@
+/*
+ * Copyright 2024 Yury Gribov
+ *
+ * The MIT License (MIT)
+ * 
+ * Use of this source code is governed by MIT license that can be
+ * found in the LICENSE.txt file.
+ */
+
+#ifndef INTERPOSED_H
+#define INTERPOSED_H
+
+extern void foo(int x0, int x1, int x2, int x3, int x4, int x5, int x6, int x7, int x8, int x9, int x10, int x11, int x12, int x13, int x14, int x15);
+
+#endif

tests/stack-args/main.c

@@ -0,0 +1,15 @@
+/*
+ * Copyright 2024 Yury Gribov
+ *
+ * The MIT License (MIT)
+ * 
+ * Use of this source code is governed by MIT license that can be
+ * found in the LICENSE.txt file.
+ */
+
+#include "interposed.h"
+
+int main() {
+  foo(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
+  return 0;
+}

tests/stack-args/run.sh

@@ -0,0 +1,41 @@
+#!/bin/sh
+
+# Copyright 2024 Yury Gribov
+#
+# The MIT License (MIT)
+# 
+# Use of this source code is governed by MIT license that can be
+# found in the LICENSE.txt file.
+
+# This is a simple test for Implib.so functionality.
+# Run it like
+#   ./run.sh ARCH
+# where ARCH stands for any supported arch (arm, x86_64, etc., see `implib-gen -h' for full list).
+# Note that you may need to install qemu-user for respective platform
+# (i386 also needs gcc-multilib).
+
+set -eu
+
+cd $(dirname $0)
+
+if test -n "${1:-}"; then
+  ARCH="$1"
+fi
+
+. ../common.sh
+
+CFLAGS="-g -O2 $CFLAGS"
+
+# Build shlib to test against
+$CC $CFLAGS -shared -fPIC interposed.c -o libinterposed.so
+
+# Prepare implib
+${PYTHON:-} ../../implib-gen.py -q --target $TARGET libinterposed.so
+
+# Build app
+$CC $CFLAGS main.c libinterposed.so.tramp.S libinterposed.so.init.c $LIBS
+
+LD_LIBRARY_PATH=.:${LD_LIBRARY_PATH:-} $INTERP ./a.out > a.out.log
+diff test.ref a.out.log
+
+echo SUCCESS

tests/stack-args/test.ref

@@ -0,0 +1 @@
+0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15