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Diffstat (limited to 'tools/llvm-stub/llvm-stub.c')
-rw-r--r-- | tools/llvm-stub/llvm-stub.c | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/tools/llvm-stub/llvm-stub.c b/tools/llvm-stub/llvm-stub.c deleted file mode 100644 index 69cd6ed..0000000 --- a/tools/llvm-stub/llvm-stub.c +++ /dev/null @@ -1,77 +0,0 @@ -/*===- llvm-stub.c - Stub executable to run llvm bitcode files ------------===// -// -// The LLVM Compiler Infrastructure -// -// 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 -// bitcode files by the user. Specifically, gccld outputs two files when asked -// to compile a <program> file: -// 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 does not like #!/bin/sh -// programs in .exe files, so we make it an actual program, defined here. -// -//===----------------------------------------------------------------------===*/ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#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"); - const char **Args; - if (Interp == 0) Interp = "lli"; - - /* Set up the command line options to pass to the JIT. */ - 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((char **)Args+2, argv+1, sizeof(char*)*argc); - - /* Run the JIT. */ -#if !defined(_WIN32) || defined(__MINGW64__) - execvp(Interp, (char **)Args); /* POSIX execvp takes a char *const[]. */ -#else - execvp(Interp, Args); /* windows execvp takes a const char *const *. */ -#endif - /* 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 " - "environment variable.\n"); - return 1; -} |