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Use the new FileUtilities.h API for mapping a file into an address

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13864 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2004-05-28 00:24:41 +00:00
parent eb08299518
commit fb777c270b
4 changed files with 30 additions and 60 deletions
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22
lib/Bytecode/Reader/ArchiveReader.cpp
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@ -19,8 +19,6 @@
#include "llvm/Bytecode/Reader.h"
#include "llvm/Module.h"
#include "Support/FileUtilities.h"
#include "Config/sys/mman.h"
#include "Config/fcntl.h"
#include <cstdlib>
using namespace llvm;
@ -166,25 +164,21 @@ static bool ReadArchiveBuffer(const std::string &ArchiveName,
//
bool llvm::ReadArchiveFile(const std::string &Filename,
std::vector<Module*> &Objects,std::string *ErrorStr){
int Length = getFileSize(Filename);
if (Length == -1)
return Error(ErrorStr, "Error getting file length!");
unsigned Length;
int FD = open(Filename.c_str(), O_RDONLY);
if (FD == -1)
return Error(ErrorStr, "Error opening file!");
// mmap in the file all at once...
unsigned char *Buffer = (unsigned char*)mmap(0, Length, PROT_READ,
MAP_PRIVATE, FD, 0);
if (Buffer == (unsigned char*)MAP_FAILED)
return Error(ErrorStr, "Error mmapping file!");
unsigned char *Buffer =
(unsigned char*)ReadFileIntoAddressSpace(Filename, Length);
if (Buffer == 0) {
if (ErrorStr) *ErrorStr = "Error reading file '" + Filename + "'!";
return true;
}
// Parse the archive files we mmap'ped in
bool Result = ReadArchiveBuffer(Filename, Buffer, Length, Objects, ErrorStr);
// Unmmap the archive...
munmap((char*)Buffer, Length);
UnmapFileFromAddressSpace(Buffer, Length);
if (Result) // Free any loaded objects
while (!Objects.empty()) {