/* Compile a C# program.
Copyright (C) 2003-2006 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2003.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
#include <config.h>
#include <alloca.h>
/* Specification. */
#include "csharpcomp.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "execute.h"
#include "pipe.h"
#include "wait-process.h"
#include "getline.h"
#include "sh-quote.h"
#include "safe-read.h"
#include "xallocsa.h"
#include "error.h"
#include "gettext.h"
#define _(str) gettext (str)
/* Survey of C# compilers.
Program from
cscc pnet
mcs mono
csc sscli
We try the CIL interpreters in the following order:
1. "cscc", because it is a completely free system.
2. "mcs", because it is a free system but doesn't integrate so well
with Unix. (Command line options start with / instead of -. Errors go
to stdout instead of stderr. Source references are printed as
"file(lineno)" instead of "file:lineno:".)
3. "csc", although it is not free, because it is a kind of "reference
implementation" of C#.
But the order can be changed through the --enable-csharp configuration
option.
*/
static int
compile_csharp_using_pnet (const char * const *sources,
unsigned int sources_count,
const char * const *libdirs,
unsigned int libdirs_count,
const char * const *libraries,
unsigned int libraries_count,
const char *output_file, bool output_is_library,
bool optimize, bool debug,
bool verbose)
{
static bool cscc_tested;
static bool cscc_present;
if (!cscc_tested)
{
/* Test for presence of cscc:
"cscc --version >/dev/null 2>/dev/null" */
char *argv[3];
int exitstatus;
argv[0] = "cscc";
argv[1] = "--version";
argv[2] = NULL;
exitstatus = execute ("cscc", "cscc", argv, false, false, true, true,
true, false);
cscc_present = (exitstatus == 0);
cscc_tested = true;
}
if (cscc_present)
{
unsigned int argc;
char **argv;
char **argp;
int exitstatus;
unsigned int i;
argc =
1 + (output_is_library ? 1 : 0) + 2 + 2 * libdirs_count
+ 2 * libraries_count + (optimize ? 1 : 0) + (debug ? 1 : 0)
+ sources_count;
argv = (char **) xallocsa ((argc + 1) * sizeof (char *));
argp = argv;
*argp++ = "cscc";
if (output_is_library)
*argp++ = "-shared";
*argp++ = "-o";
*argp++ = (char *) output_file;
for (i = 0; i < libdirs_count; i++)
{
*argp++ = "-L";
*argp++ = (char *) libdirs[i];
}
for (i = 0; i < libraries_count; i++)
{
*argp++ = "-l";
*argp++ = (char *) libraries[i];
}
if (optimize)
*argp++ = "-O";
if (debug)
*argp++ = "-g";
for (i = 0; i < sources_count; i++)
{
const char *source_file = sources[i];
if (strlen (source_file) >= 10
&& memcmp (source_file + strlen (source_file) - 10, ".resources",
10) == 0)
{
char *option = (char *) xallocsa (12 + strlen (source_file) + 1);
memcpy (option, "-fresources=", 12);
strcpy (option + 12, source_file);
*argp++ = option;
}
else
*argp++ = (char *) source_file;
}
*argp = NULL;
/* Ensure argv length was correctly calculated. */
if (argp - argv != argc)
abort ();
if (verbose)
{
char *command = shell_quote_argv (argv);
printf ("%s\n", command);
free (command);
}
exitstatus = execute ("cscc", "cscc", argv, false, false, false, false,
true, true);
for (i = 0; i < sources_count; i++)
if (argv[argc - sources_count + i] != sources[i])
freesa (argv[argc - sources_count + i]);
freesa (argv);
return (exitstatus != 0);
}
else
return -1;
}
static int
compile_csharp_using_mono (const char * const *sources,
unsigned int sources_count,
const char * const *libdirs,
unsigned int libdirs_count,
const char * const *libraries,
unsigned int libraries_count,
const char *output_file, bool output_is_library,
bool optimize, bool debug,
bool verbose)
{
static bool mcs_tested;
static bool mcs_present;
if (!mcs_tested)
{
/* Test for presence of mcs:
"mcs --version >/dev/null 2>/dev/null" */
char *argv[3];
int exitstatus;
argv[0] = "mcs";
argv[1] = "--version";
argv[2] = NULL;
exitstatus = execute ("mcs", "mcs", argv, false, false, true, true, true,
false);
mcs_present = (exitstatus == 0);
mcs_tested = true;
}
if (mcs_present)
{
unsigned int argc;
char **argv;
char **argp;
pid_t child;
int fd[1];
FILE *fp;
char *line[2];
size_t linesize[2];
size_t linelen[2];
unsigned int l;
int exitstatus;
unsigned int i;
argc =
1 + (output_is_library ? 1 : 0) + 1 + libdirs_count + libraries_count
+ (debug ? 1 : 0) + sources_count;
argv = (char **) xallocsa ((argc + 1) * sizeof (char *));
argp = argv;
*argp++ = "mcs";
if (output_is_library)
*argp++ = "-target:library";
{
char *option = (char *) xallocsa (5 + strlen (output_file) + 1);
memcpy (option, "-out:", 5);
strcpy (option + 5, output_file);
*argp++ = option;
}
for (i = 0; i < libdirs_count; i++)
{
char *option = (char *) xallocsa (5 + strlen (libdirs[i]) + 1);
memcpy (option, "-lib:", 5);
strcpy (option + 5, libdirs[i]);
*argp++ = option;
}
for (i = 0; i < libraries_count; i++)
{
char *option = (char *) xallocsa (11 + strlen (libraries[i]) + 4 + 1);
memcpy (option, "-reference:", 11);
memcpy (option + 11, libraries[i], strlen (libraries[i]));
strcpy (option + 11 + strlen (libraries[i]), ".dll");
*argp++ = option;
}
if (debug)
*argp++ = "-debug";
for (i = 0; i < sources_count; i++)
{
const char *source_file = sources[i];
if (strlen (source_file) >= 10
&& memcmp (source_file + strlen (source_file) - 10, ".resources",
10) == 0)
{
char *option = (char *) xallocsa (10 + strlen (source_file) + 1);
memcpy (option, "-resource:", 10);
strcpy (option + 10, source_file);
*argp++ = option;
}
else
*argp++ = (char *) source_file;
}
*argp = NULL;
/* Ensure argv length was correctly calculated. */
if (argp - argv != argc)
abort ();
if (verbose)
{
char *command = shell_quote_argv (argv);
printf ("%s\n", command);
free (command);
}
child = create_pipe_in ("mcs", "mcs", argv, NULL, false, true, true, fd);
/* Read the subprocess output, copying it to stderr. Drop the last
line if it starts with "Compilation succeeded". */
fp = fdopen (fd[0], "r");
if (fp == NULL)
error (EXIT_FAILURE, errno, _("fdopen() failed"));
line[0] = NULL; linesize[0] = 0;
line[1] = NULL; linesize[1] = 0;
l = 0;
for (;;)
{
linelen[l] = getline (&line[l], &linesize[l], fp);
if (linelen[l] == (size_t)(-1))
break;
l = (l + 1) % 2;
if (line[l] != NULL)
fwrite (line[l], 1, linelen[l], stderr);
}
l = (l + 1) % 2;
if (line[l] != NULL
&& !(linelen[l] >= 21
&& memcmp (line[l], "Compilation succeeded", 21) == 0))
fwrite (line[l], 1, linelen[l], stderr);
if (line[0] != NULL)
free (line[0]);
if (line[1] != NULL)
free (line[1]);
fclose (fp);
/* Remove zombie process from process list, and retrieve exit status. */
exitstatus = wait_subprocess (child, "mcs", false, false, true, true);
for (i = 1 + (output_is_library ? 1 : 0);
i < 1 + (output_is_library ? 1 : 0)
+ 1 + libdirs_count + libraries_count;
i++)
freesa (argv[i]);
for (i = 0; i < sources_count; i++)
if (argv[argc - sources_count + i] != sources[i])
freesa (argv[argc - sources_count + i]);
freesa (argv);
return (exitstatus != 0);
}
else
return -1;
}
static int
compile_csharp_using_sscli (const char * const *sources,
unsigned int sources_count,
const char * const *libdirs,
unsigned int libdirs_count,
const char * const *libraries,
unsigned int libraries_count,
const char *output_file, bool output_is_library,
bool optimize, bool debug,
bool verbose)
{
static bool csc_tested;
static bool csc_present;
if (!csc_tested)
{
/* Test for presence of csc:
"csc -help >/dev/null 2>/dev/null \
&& ! { csc -help 2>/dev/null | grep -i chicken > /dev/null; }" */
char *argv[3];
pid_t child;
int fd[1];
int exitstatus;
argv[0] = "csc";
argv[1] = "-help";
argv[2] = NULL;
child = create_pipe_in ("csc", "csc", argv, DEV_NULL, true, true, false,
fd);
csc_present = false;
if (child != -1)
{
/* Read the subprocess output, and test whether it contains the
string "chicken". */
char c[7];
size_t count = 0;
csc_present = true;
while (safe_read (fd[0], &c[count], 1) > 0)
{
if (c[count] >= 'A' && c[count] <= 'Z')
c[count] += 'a' - 'A';
count++;
if (count == 7)
{
if (memcmp (c, "chicken", 7) == 0)
csc_present = false;
c[0] = c[1]; c[1] = c[2]; c[2] = c[3];
c[3] = c[4]; c[4] = c[5]; c[5] = c[6];
count--;
}
}
close (fd[0]);
/* Remove zombie process from process list, and retrieve exit
status. */
exitstatus =
wait_subprocess (child, "csc", false, true, true, false);
if (exitstatus != 0)
csc_present = false;
}
csc_tested = true;
}
if (csc_present)
{
unsigned int argc;
char **argv;
char **argp;
int exitstatus;
unsigned int i;
argc =
1 + 1 + 1 + libdirs_count + libraries_count
+ (optimize ? 1 : 0) + (debug ? 1 : 0) + sources_count;
argv = (char **) xallocsa ((argc + 1) * sizeof (char *));
argp = argv;
*argp++ = "csc";
*argp++ = (output_is_library ? "-target:library" : "-target:exe");
{
char *option = (char *) xallocsa (5 + strlen (output_file) + 1);
memcpy (option, "-out:", 5);
strcpy (option + 5, output_file);
*argp++ = option;
}
for (i = 0; i < libdirs_count; i++)
{
char *option = (char *) xallocsa (5 + strlen (libdirs[i]) + 1);
memcpy (option, "-lib:", 5);
strcpy (option + 5, libdirs[i]);
*argp++ = option;
}
for (i = 0; i < libraries_count; i++)
{
char *option = (char *) xallocsa (11 + strlen (libraries[i]) + 4 + 1);
memcpy (option, "-reference:", 11);
memcpy (option + 11, libraries[i], strlen (libraries[i]));
strcpy (option + 11 + strlen (libraries[i]), ".dll");
*argp++ = option;
}
if (optimize)
*argp++ = "-optimize+";
if (debug)
*argp++ = "-debug+";
for (i = 0; i < sources_count; i++)
{
const char *source_file = sources[i];
if (strlen (source_file) >= 10
&& memcmp (source_file + strlen (source_file) - 10, ".resources",
10) == 0)
{
char *option = (char *) xallocsa (10 + strlen (source_file) + 1);
memcpy (option, "-resource:", 10);
strcpy (option + 10, source_file);
*argp++ = option;
}
else
*argp++ = (char *) source_file;
}
*argp = NULL;
/* Ensure argv length was correctly calculated. */
if (argp - argv != argc)
abort ();
if (verbose)
{
char *command = shell_quote_argv (argv);
printf ("%s\n", command);
free (command);
}
exitstatus = execute ("csc", "csc", argv, false, false, false, false,
true, true);
for (i = 2; i < 3 + libdirs_count + libraries_count; i++)
freesa (argv[i]);
for (i = 0; i < sources_count; i++)
if (argv[argc - sources_count + i] != sources[i])
freesa (argv[argc - sources_count + i]);
freesa (argv);
return (exitstatus != 0);
}
else
return -1;
}
bool
compile_csharp_class (const char * const *sources,
unsigned int sources_count,
const char * const *libdirs,
unsigned int libdirs_count,
const char * const *libraries,
unsigned int libraries_count,
const char *output_file,
bool optimize, bool debug,
bool verbose)
{
bool output_is_library =
(strlen (output_file) >= 4
&& memcmp (output_file + strlen (output_file) - 4, ".dll", 4) == 0);
int result;
/* First try the C# implementation specified through --enable-csharp. */
#if CSHARP_CHOICE_PNET
result = compile_csharp_using_pnet (sources, sources_count,
libdirs, libdirs_count,
libraries, libraries_count,
output_file, output_is_library,
optimize, debug, verbose);
if (result >= 0)
return (bool) result;
#endif
#if CSHARP_CHOICE_MONO
result = compile_csharp_using_mono (sources, sources_count,
libdirs, libdirs_count,
libraries, libraries_count,
output_file, output_is_library,
optimize, debug, verbose);
if (result >= 0)
return (bool) result;
#endif
/* Then try the remaining C# implementations in our standard order. */
#if !CSHARP_CHOICE_PNET
result = compile_csharp_using_pnet (sources, sources_count,
libdirs, libdirs_count,
libraries, libraries_count,
output_file, output_is_library,
optimize, debug, verbose);
if (result >= 0)
return (bool) result;
#endif
#if !CSHARP_CHOICE_MONO
result = compile_csharp_using_mono (sources, sources_count,
libdirs, libdirs_count,
libraries, libraries_count,
output_file, output_is_library,
optimize, debug, verbose);
if (result >= 0)
return (bool) result;
#endif
result = compile_csharp_using_sscli (sources, sources_count,
libdirs, libdirs_count,
libraries, libraries_count,
output_file, output_is_library,
optimize, debug, verbose);
if (result >= 0)
return (bool) result;
error (0, 0, _("C# compiler not found, try installing pnet"));
return true;
}