patches: Remove patch 0005: main adaptation

Remove patch that required the `.wasm` file to be passed as an initrd
option. Rely on a filesystem being available, which is the default
behavior: expecting the path to the `.wasm` file as a command line
argument.

Signed-off-by: Razvan Deaconescu <razvand@unikraft.io>
Reviewed-by: Stefan Jumarea <stefanjumarea02@gmail.com>
Approved-by: Stefan Jumarea <stefanjumarea02@gmail.com>
GitHub-Closes: #9

diff --git a/patches/0005-adapt-main-c-to-unikraft.patch b/patches/0005-adapt-main-c-to-unikraft.patch
deleted file mode 100644 (file)
index 3909ddf..0000000
--- a/patches/0005-adapt-main-c-to-unikraft.patch
+++ /dev/null
@@ -1,116 +0,0 @@
---- a/core/iwasm/products/linux/main.c 2019-09-09 14:51:40.000000000 +0200
-+++ b/core/iwasm/products/linux/main.c 2019-10-11 10:57:38.858381930 +0200
-@@ -28,6 +28,8 @@
- #include "wasm_memory.h"
- #include "bh_memory.h"
- 
-+#include <uk/plat/memory.h>
-+
- static int app_argc;
- static char **app_argv;
- 
-@@ -158,7 +160,7 @@
-     return NULL;
- }
- 
--#define USE_GLOBAL_HEAP_BUF 0
-+#define USE_GLOBAL_HEAP_BUF 1
- 
- #if USE_GLOBAL_HEAP_BUF != 0
- static char global_heap_buf[10 * 1024 * 1024] = { 0 };
-@@ -177,15 +179,11 @@
-     int log_verbose_level = 1;
- #endif
-     bool is_repl_mode = false;
--
-+    
-     /* Process options.  */
-     for (argc--, argv++; argc > 0 && argv[0][0] == '-'; argc--, argv++) {
-         if (!strcmp(argv[0], "-f") || !strcmp(argv[0], "--function")) {
-             argc--, argv++;
--            if (argc < 2) {
--                print_help();
--                return 0;
--            }
-             func_name = argv[0];
-         }
- #if WASM_ENABLE_LOG != 0
-@@ -197,13 +195,8 @@
- #endif
-         else if (!strcmp(argv[0], "--repl"))
-             is_repl_mode = true;
--        else
--            return print_help();
-     }
- 
--    if (argc == 0)
--        return print_help();
--
-     wasm_file = argv[0];
-     app_argc = argc;
-     app_argv = argv;
-@@ -227,35 +220,39 @@
- 
-     wasm_log_set_verbose_level(log_verbose_level);
- 
--    /* load WASM byte buffer from WASM bin file */
--    if (!(wasm_file_buf = (uint8*) bh_read_file_to_buffer(wasm_file,
--                                                          &wasm_file_size)))
--        goto fail2;
--
--    /* load WASM module */
--    if (!(wasm_module = wasm_runtime_load(wasm_file_buf, wasm_file_size,
--                                          error_buf, sizeof(error_buf)))) {
--        wasm_printf("%s\n", error_buf);
--        goto fail3;
--    }
--
--    /* instantiate the module */
--    if (!(wasm_module_inst = wasm_runtime_instantiate(wasm_module,
--                                                      64 * 1024, /* stack size */
--                                                      64 * 1024, /* heap size */
--                                                      error_buf,
--                                                      sizeof(error_buf)))) {
--        wasm_printf("%s\n", error_buf);
--        goto fail4;
-+    /* load from initrd */
-+    struct ukplat_memregion_desc *img;
-+    if (ukplat_memregion_find_initrd0(&img) >= 0) {
-+      wasm_file_buf = (uint8*)img->vbase;
-+      wasm_file_size = img->len;
-+      
-+      /* load WASM module */
-+      if (!(wasm_module = wasm_runtime_load(wasm_file_buf, wasm_file_size,
-+                                            error_buf, sizeof(error_buf)))) {
-+          wasm_printf("%s\n", error_buf);
-+          goto fail3;
-+      }
-+
-+      /* instantiate the module */
-+      if (!(wasm_module_inst = wasm_runtime_instantiate(wasm_module,
-+                                                        64 * 1024, /* stack size */
-+                                                        64 * 1024, /* heap size */
-+                                                        error_buf,
-+                                                        sizeof(error_buf)))) {
-+          wasm_printf("%s\n", error_buf);
-+          goto fail4;
-+      }
-+      app_instance_main(wasm_module_inst);
-+    }
-+    else if (is_repl_mode) {
-+       printf("Entering REPL mode...\n");
-+       app_instance_repl(wasm_module_inst);
-     }
--
--    if (is_repl_mode)
--        app_instance_repl(wasm_module_inst);
-     else if (func_name)
-         app_instance_func(wasm_module_inst, func_name);
-     else
--        app_instance_main(wasm_module_inst);
--
-+      printf("warning: did not select --repl nor -initrd mode!\n");
-+    
-     /* destroy the module instance */
-     wasm_runtime_deinstantiate(wasm_module_inst);
-