mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-30 23:42:52 +01:00
7cce6dd8ec
last file in LLVM to require the header. After ths commmit, our unistd.h will go away. llvm-svn: 19065
70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/*===- llvm-stub.c - Stub executable to run llvm bytecode 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 tool is used by the gccld program to enable transparent execution of
|
|
// bytecode 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
|
|
// 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 __CYGWIN32__
|
|
/* Cygwin strips the .exe suffix off of argv[0] to "help" us. Put it back
|
|
* on.
|
|
*/
|
|
argv[0] = strcat(strcpy((char*)malloc(strlen(argv[0])+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);
|
|
|
|
/* Run the JIT. */
|
|
execvp(Interp, (char *const*)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 "
|
|
"environment variable.\n");
|
|
return 1;
|
|
}
|