Const-correctness.

[oota-llvm.git] / tools / llvm-stub / llvm-stub.c

diff --git a/tools/llvm-stub/llvm-stub.c b/tools/llvm-stub/llvm-stub.c
index 7009c8dee1a1ff85e949ce455d715e6510e8094e..f2e478e69583b85d66f2a22ce4c08d14f8351442 100644 (file)
--- a/tools/llvm-stub/llvm-stub.c
+++ b/tools/llvm-stub/llvm-stub.c
@@ -1,21 +1,21 @@
-/*===- llvm-stub.c - Stub executable to run llvm bytecode files -----------===//
+/*===- llvm-stub.c - Stub executable to run llvm bitcode files ------------===//
 // 
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 // 
 //===----------------------------------------------------------------------===//
 //
 // This tool is used by the gccld program to enable transparent execution of
-// bytecode files by the user.  Specifically, gccld outputs two files when asked
+// bitcode files by the user.  Specifically, gccld outputs two files when asked
 // to compile a <program> file:
-//    1. It outputs the LLVM bytecode file to <program>.bc
+//    1. It outputs the LLVM bitcode file to <program>.bc
 //    2. It outputs a stub executable that runs lli on <program>.bc
 //
 // This allows the end user to just say ./<program> and have the JIT executed
 // automatically.  On unix, the stub executable emitted is actually a bourne
-// shell script that does the forwarding.  Windows doesn't not like #!/bin/sh
+// shell script that does the forwarding.  Windows does not like #!/bin/sh
 // programs in .exe files, so we make it an actual program, defined here.
 //
 //===----------------------------------------------------------------------===*/
@@ -23,7 +23,17 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include "Config/unistd.h"  /* provides definition of execve */
+
+#include "llvm/Config/config.h"
+
+#if defined(HAVE_UNISTD_H) && !defined(_MSC_VER)
+#include <unistd.h>
+#endif
+
+#ifdef _WIN32
+#include <process.h>
+#include <io.h>
+#endif
 
 int main(int argc, char** argv) {
   const char *Interp = getenv("LLVMINTERP");
@@ -34,15 +44,27 @@ int main(int argc, char** argv) {
   Args = (const char**)malloc(sizeof(char*) * (argc+2));
   /* argv[0] is the JIT */
   Args[0] = Interp;
+
+#ifdef LLVM_ON_WIN32
+  {
+    int len = strlen(argv[0]);
+    if (len < 4 || strcmp(argv[0] + len - 4, ".exe") != 0) {
+      /* .exe suffix is stripped off of argv[0] if the executable was run on the
+       * command line without one. Put it back on.
+       */
+      argv[0] = strcat(strcpy((char*)malloc(len + 5), argv[0]), ".exe");
+    }
+  }
+#endif
+
   /* argv[1] is argv[0] + ".bc". */
   Args[1] = strcat(strcpy((char*)malloc(strlen(argv[0])+4), argv[0]), ".bc");
 
   /* The rest of the args are as before. */
-  memcpy(Args+2, argv+1, sizeof(char*)*argc);
+  memcpy((char **)Args+2, argv+1, sizeof(char*)*argc);
 
   /* Run the JIT. */
-  execvp(Interp, (char *const*)Args);
-
+  execvp(Interp, (char **)Args);
   /* if _execv returns, the JIT could not be started. */
   fprintf(stderr, "Could not execute the LLVM JIT.  Either add 'lli' to your"
           " path, or set the\ninterpreter you want to use in the LLVMINTERP "