Files
ispc/ptxtools/ptxcc.cpp
Evghenii 24e1a98275 compiles
2014-02-20 11:20:13 +01:00

276 lines
7.2 KiB
C++

#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <cassert>
#include <algorithm>
#include <sys/time.h>
#include "PTXParser.h"
/*
* The C++ code below is based on the following bash-script:
#!/bin/sh
PTXSRC=$1__tmp_ptx.ptx
PTXCU=$1___tmp_ptx.cu
PTXSH=$1___tmp_ptx.sh
NVCCPARM=${@:2}
DEPTX=dePTX
NVCC=nvcc
$(cat $1 | sed 's/\.b0/\.b32/g' > $PTXSRC) &&
$DEPTX < $PTXSRC > $PTXCU &&
$NVCC -arch=sm_35 -dc $NVCCPARM -dryrun $PTXCU 2>&1 | \
sed 's/\#\$//g'| \
awk '{ if ($1 == "LIBRARIES=") print $1$2; else if ($1 == "cicc") print "cp '$PTXSRC'", $NF; else print $0 }' > $PTXSH &&
sh $PTXSH
# rm $PTXCU $PTXSH
*
*/
static char lRandomAlNum()
{
const char charset[] =
"0123456789"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklmnopqrstuvwxyz";
const size_t max_index = (sizeof(charset) - 1);
return charset[ rand() % max_index ];
}
static std::string lRandomString(const size_t length)
{
timeval t1;
gettimeofday(&t1, NULL);
srand(t1.tv_usec * t1.tv_sec);
std::string str(length,0);
std::generate_n( str.begin(), length, lRandomAlNum);
return str;
}
static void lGetAllArgs(int Argc, char *Argv[], int &argc, char *argv[128])
{
// Copy over the command line arguments (passed in)
for (int i = 0; i < Argc; ++i)
argv[i] = Argv[i];
argc = Argc;
}
const char *lGetExt (const char *fspec)
{
char *e = strrchr (fspec, '.');
return e;
}
static std::vector<std::string> lSplitString(const std::string &s, char delim)
{
std::vector<std::string> elems;
std::stringstream ss(s);
std::string item;
while (std::getline(ss, item, delim)) {
if (!item.empty())
elems.push_back(item);
}
return elems;
}
static void lUsage(const int ret)
{
fprintf(stdout, "\nusage: ptxcc [options] file.ptx \n");
fprintf(stdout, " [--help]\t\t\t\t This help\n");
fprintf(stdout, " [--verbose]\t\t\t\t Be verbose\n");
fprintf(stdout, " [--arch={%s}]\t\t\t GPU target architecture\n", "sm_35");
fprintf(stdout, " [-o <name>]\t\t\t\t Output file name\n");
fprintf(stdout, " [-Xnvcc=<arguments>]\t\t Arguments to pass through to \"nvcc\"\n");
fprintf(stdout, " \n");
exit(ret);
}
int main(int _argc, char * _argv[])
{
int argc;
char *argv[128];
lGetAllArgs(_argc, _argv, argc, argv);
std::string arch="sm_35";
std::string filePTX;
std::string fileOBJ;
std::string extString = ".ptx";
bool keepTemporaries = false;
bool verbose = false;
std::string nvccArguments;
for (int i = 1; i < argc; ++i)
{
if (!strcmp(argv[i], "--help"))
lUsage(0);
else if (!strncmp(argv[i], "--arch=", 7))
arch = std::string(argv[i]+7);
else if (!strncmp(argv[i], "--keep-temporaries", 11))
keepTemporaries = true;
else if (!strncmp(argv[i], "--verbose", 9))
verbose = true;
else if (!strncmp(argv[i], "-Xnvcc=", 7))
nvccArguments = std::string(argv[i]+7);
else if (!strcmp(argv[i], "-o"))
{
if (++i == argc)
{
fprintf(stderr, "No output file specified after -o option.\n");
lUsage(1);
}
fileOBJ = std::string(argv[i]);
}
else
{
const char * ext = strrchr(argv[i], '.');
if (ext == NULL)
{
fprintf(stderr, " Unknown argument: %s \n", argv[i]);
lUsage(1);
}
else if (strncmp(ext, extString.c_str(), 4))
{
fprintf(stderr, " Unkown extension of the input file: %s \n", ext);
lUsage(1);
}
else if (filePTX.empty())
{
filePTX = std::string(argv[i]);
if (fileOBJ.empty())
{
char * baseName = argv[i];
while (baseName != ext)
fileOBJ += std::string(baseName++,1);
}
fileOBJ += ".o";
}
}
}
#if 0
fprintf(stderr, " fileOBJ= %s\n", fileOBJ.c_str());
fprintf(stderr, " arch= %s\n", arch.c_str());
fprintf(stderr, " file= %s\n", filePTX.empty() ? "$stdin" : filePTX.c_str());
fprintf(stderr, " num_args= %d\n", (int)nvccArgumentList.size());
for (int i= 0; i < (int)nvccArgumentList.size(); i++)
fprintf(stderr, " arg= %d : %s \n", i, nvccArgumentList[i].c_str());
#endif
assert(arch == std::string("sm_35"));
if (filePTX.empty())
{
fprintf(stderr, "ptxcc fatal : No input file specified; use option --help for more information\n");
exit(1);
}
// open a file handle to a particular file:
std::ifstream inputPTX(filePTX.c_str());
if (!inputPTX)
{
fprintf(stderr, "ptxcc: error: %s: No such file\n", filePTX.c_str());
exit(1);
}
std::string randomBaseName = std::string("/tmp/") + lRandomString(8) + "_" + lSplitString(lSplitString(filePTX,'/').back(),'.')[0];
if (verbose)
fprintf(stderr, "baseFileName= %s\n", randomBaseName.c_str());
std::string fileCU= randomBaseName + ".cu";
std::ofstream outputCU(fileCU.c_str());
assert(outputCU);
std::istream & input = inputPTX;
std::ostream & output = outputCU;
std::ostream & error = std::cerr;
parser::PTXLexer lexer(&input, &error);
parser::PTXParser state(output);
// parse through the input until there is no more:
//
do {
ptx::yyparse(lexer, state);
}
while (!input.eof());
inputPTX.close();
outputCU.close();
// process output from nvcc
//
/* nvcc -dc -arch=$arch -dryrun -argumentlist fileCU */
std::string fileSH= randomBaseName + ".sh";
std::string nvccExe("nvcc");
std::string nvccCmd;
nvccCmd += nvccExe + std::string(" ");
nvccCmd += "-dc ";
nvccCmd += std::string("-arch=") + arch + std::string(" ");
nvccCmd += "-dryrun ";
nvccCmd += nvccArguments + std::string(" ");
nvccCmd += std::string("-o ") + fileOBJ + std::string(" ");
nvccCmd += fileCU + std::string(" ");
nvccCmd += std::string("2> ") + fileSH;
if (verbose)
fprintf(stderr , "%s\n", nvccCmd.c_str());
const int nvccRet = std::system(nvccCmd.c_str());
if (nvccRet)
fprintf(stderr, "FAIL: %s\n", nvccCmd.c_str());
std::ifstream inputSH(fileSH.c_str());
assert(inputSH);
std::vector<std::string> nvccSteps;
while (!inputSH.eof())
{
nvccSteps.push_back(std::string());
std::getline(inputSH, nvccSteps.back());
if (nvccRet)
fprintf(stderr, " %s\n", nvccSteps.back().c_str());
}
inputSH.close();
if (nvccRet)
exit(-1);
for (int i = 0; i < (int)nvccSteps.size(); i++)
{
std::string cmd = nvccSteps[i];
for (int j = 0; j < (int)cmd.size()-1; j++)
if (cmd[j] == '#' && cmd[j+1] == '$')
cmd[j] = cmd[j+1] = ' ';
std::vector<std::string> splitCmd = lSplitString(cmd, ' ');
if (!splitCmd.empty())
{
if (splitCmd[0] == std::string("cicc"))
cmd = std::string(" cp ") + filePTX + std::string(" ") + splitCmd.back();
if (splitCmd[0] == std::string("LIBRARIES="))
cmd = "";
}
nvccSteps[i] = cmd;
if (verbose)
fprintf(stderr, "%3d: %s\n", i, cmd.c_str());
const int ret = std::system(cmd.c_str());
if (ret)
{
fprintf(stderr, " Something went wrong .. \n");
for (int j = 0; j < i; j++)
fprintf(stderr, "PASS: %s\n", nvccSteps[j].c_str());
fprintf(stderr, "FAIL: %s\n", nvccSteps[i].c_str());
exit(-1);
}
}
if (!keepTemporaries)
{
/* remove temporaries */
}
}