Remove usage of alloca
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6726 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/SystemUtils.cpp b/lib/Support/SystemUtils.cpp
index c88a516..6ecaf2b 100644
--- a/lib/Support/SystemUtils.cpp
+++ b/lib/Support/SystemUtils.cpp
@@ -10,7 +10,7 @@
#include <fstream>
#include <iostream>
#include <cstdlib>
-#include "Support/Alloca.h"
+#include <vector>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
@@ -33,13 +33,13 @@
return FilenameBase; // Couldn't open the file? Use it!
// Create a pattern for mkstemp...
- char *FNBuffer = (char*)alloca(FilenameBase.size()+8);
- strcpy(FNBuffer, FilenameBase.c_str());
- strcpy(FNBuffer+FilenameBase.size(), "-XXXXXX");
+ std::vector<char> FNBuffer(FilenameBase.size()+8);
+ strcpy(&FNBuffer[0], FilenameBase.c_str());
+ strcpy(&FNBuffer[FilenameBase.size()], "-XXXXXX");
// Agree on a temporary file name to use....
int TempFD;
- if ((TempFD = mkstemp(FNBuffer)) == -1) {
+ if ((TempFD = mkstemp(&FNBuffer[0])) == -1) {
std::cerr << "bugpoint: ERROR: Cannot create temporary file in the current "
<< " directory!\n";
exit(1);
@@ -48,7 +48,7 @@
// We don't need to hold the temp file descriptor... we will trust that noone
// will overwrite/delete the file while we are working on it...
close(TempFD);
- return FNBuffer;
+ return std::string(&FNBuffer[0]);
}
/// isExecutableFile - This function returns true if the filename specified