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inifile: Whack preprocessor access.

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We haven't used the preprocessor feature of the inifile stuff in a
very long time, so let's get rid of it since it would otherwise take
effort to maintain.
This commit is contained in:
Nathan Binkert 2008-09-19 09:11:40 -07:00
parent 3a3e356f4e
commit f066db7fcd
2 changed files with 0 additions and 119 deletions
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111
src/base/inifile.cc
View file

@ -29,22 +29,8 @@
* Steve Reinhardt
*/
#define USE_CPP
#ifdef USE_CPP
#include <sys/signal.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <libgen.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#endif
#include <fstream>
#include <iostream>
#include <vector>
#include <string>
@ -67,103 +53,6 @@ IniFile::~IniFile()
}
}
#ifdef USE_CPP
bool
IniFile::loadCPP(const string &file, vector<char *> &cppArgs)
{
// Open the file just to verify that we can. Otherwise if the
// file doesn't exist or has bad permissions the user will get
// confusing errors from cpp/g++.
ifstream tmpf(file.c_str());
if (!tmpf.is_open())
return false;
tmpf.close();
char *cfile = strncpy(new char[file.size() + 1], file.c_str(),
file.size());
char *dir = dirname(cfile);
char *dir_arg = NULL;
if (*dir != '.') {
string arg = "-I";
arg += dir;
dir_arg = new char[arg.size() + 1];
strncpy(dir_arg, arg.c_str(), arg.size());
}
delete [] cfile;
char tempfile[] = "/tmp/configXXXXXX";
int tmp_fd = mkstemp(tempfile);
int pid = fork();
if (pid == -1)
return false;
if (pid == 0) {
char filename[FILENAME_MAX];
string::size_type i = file.copy(filename, sizeof(filename) - 1);
filename[i] = '\0';
int arg_count = cppArgs.size();
const char **args = new const char *[arg_count + 20];
int nextArg = 0;
args[nextArg++] = "g++";
args[nextArg++] = "-E";
args[nextArg++] = "-P";
args[nextArg++] = "-nostdinc";
args[nextArg++] = "-nostdinc++";
args[nextArg++] = "-x";
args[nextArg++] = "c++";
args[nextArg++] = "-undef";
for (int i = 0; i < arg_count; i++)
args[nextArg++] = cppArgs[i];
if (dir_arg)
args[nextArg++] = dir_arg;
args[nextArg++] = filename;
args[nextArg++] = NULL;
close(STDOUT_FILENO);
if (dup2(tmp_fd, STDOUT_FILENO) == -1)
exit(1);
// execvp signature is intentionally broken wrt const-ness for
// backwards compatibility... see man page
execvp("g++", const_cast<char * const *>(args));
exit(0);
}
int retval;
waitpid(pid, &retval, 0);
delete [] dir_arg;
// check for normal completion of CPP
if (!WIFEXITED(retval) || WEXITSTATUS(retval) != 0)
return false;
close(tmp_fd);
bool status = false;
status = load(tempfile);
unlink(tempfile);
return status;
}
#endif
bool
IniFile::load(const string &file)
{

8
src/base/inifile.hh
View file

@ -167,14 +167,6 @@ class IniFile
/// @retval True if successful, false if errors were encountered.
bool load(std::istream &f);
/// Load the specified file, passing it through the C preprocessor.
/// Parameter settings found in the file will be merged with any
/// already defined in this object.
/// @param file The path of the file to load.
/// @param cppFlags Vector of extra flags to pass to cpp.
/// @retval True if successful, false if errors were encountered.
bool loadCPP(const std::string &file, std::vector<char *> &cppFlags);
/// Load the specified file.
/// Parameter settings found in the file will be merged with any
/// already defined in this object.