First commit

3 files changed, 129 insertions, 0 deletions

diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
new file mode 100644
index 0000000..60ebec3
--- /dev/null
+++ b/test/CMakeLists.txt
@@ -0,0 +1,24 @@
+# nanowasm, a tiny WebAssembly/Wasm interpreter
+# Copyright (C) 2023-2024  Xavier Del Campo Romero
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+cmake_minimum_required(VERSION 3.18)
+project(test C)
+add_executable(${PROJECT_NAME} main.c)
+target_link_libraries(${PROJECT_NAME} PRIVATE nanowasm)
+
+include(CheckLinkerFlag)
+set(ldflags -Wl,--gc-sections)
+
+foreach(f ${ldflags})
+    string(REPLACE "-" "_" var supported_${f})
+    string(REPLACE "," "_" var ${var})
+    check_linker_flag(C ${f} ${var})
+
+    if(${var})
+        target_link_options(${PROJECT_NAME} PRIVATE ${f})
+    endif()
+endforeach()
diff --git a/test/example.wasm b/test/example.wasm
new file mode 100755
index 0000000..afea5ed
--- /dev/null
+++ b/test/example.wasm
diff --git a/test/main.c b/test/main.c
new file mode 100644
index 0000000..70cacd8
--- /dev/null
+++ b/test/main.c
@@ -0,0 +1,105 @@
+/*
+ * nanowasm, a tiny WebAssembly/Wasm interpreter
+ * Copyright (C) 2023-2024  Xavier Del Campo Romero
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+#include <nanowasm/nw.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static int proc_exit(const struct nw_args *const params,
+    union nw_value *const ret, void *const user)
+{
+    return -1;
+}
+
+int main(int argc, char *argv[])
+{
+    static const struct nw_import imports[] =
+    {
+        {
+            .kind = NW_KIND_FUNCTION,
+            .module = "wasi_snapshot_preview1",
+            .field = "proc_exit",
+            .u.function =
+            {
+                .signature = "i32()",
+                .fn = proc_exit
+            }
+        }
+    };
+
+    static const struct nw_mod_cfg cfg =
+    {
+        .path = "example.wasm",
+        .imports = imports,
+        .n_imports = sizeof imports / sizeof *imports
+    };
+
+    struct nw_mod m;
+
+    if (nw_load(&cfg, &m))
+    {
+        fprintf(stderr, "%s: nw_load failed\n", __func__);
+        return EXIT_FAILURE;
+    }
+
+    const struct nw_inst_cfg icfg =
+    {
+        .interp =
+        {
+            .stack = NW_BUF(256),
+            .heap = NW_BUF(2048),
+            .global = NW_BUF(24),
+            .m = &m
+        }
+    };
+
+    struct nw_inst inst;
+
+    if (nw_start(&icfg, &inst))
+    {
+        fprintf(stderr, "%s: nw_start failed\n", __func__);
+        return EXIT_FAILURE;
+    }
+
+    const union nw_inst_state *s = &inst.state;
+    int ret = EXIT_FAILURE;
+
+again:
+
+    switch (nw_run(&inst))
+    {
+        case NW_STATE_AGAIN:
+            goto again;
+
+        case NW_STATE_RETURNED:
+            fprintf(stderr, "instance returned %ld\n", s->retval);
+            break;
+
+        case NW_STATE_EXCEPTION:
+            fprintf(stderr, "exception: %s\n", s->exception);
+            goto end;
+
+        case NW_STATE_FATAL:
+            goto end;
+    }
+
+    ret = EXIT_SUCCESS;
+
+end:
+
+    if (nw_stop(&inst))
+    {
+        fprintf(stderr, "%s: nw_stop failed\n", __func__);
+        ret = EXIT_FAILURE;
+    }
+
+    return ret;
+}