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/* valaccodecompiler.vala
*
* Copyright (C) 2007-2009 Jürg Billeter
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author:
* Jürg Billeter <j@bitron.ch>
*/
using GLib;
/**
* Interface to the C compiler.
*/
public class Vala.CCodeCompiler {
public CCodeCompiler () {
}
static bool package_exists(string package_name) {
string pc = "pkg-config --exists " + package_name;
int exit_status;
try {
Process.spawn_command_line_sync (pc, null, null, out exit_status);
return (0 == exit_status);
} catch (SpawnError e) {
Report.error (null, e.message);
return false;
}
}
/**
* Compile generated C code to object code and optionally link object
* files.
*
* @param context a code context
*/
public void compile (CodeContext context, string? cc_command, string[] cc_options) {
bool use_pkgconfig = false;
string pc = "pkg-config --cflags";
if (!context.compile_only) {
pc += " --libs";
}
if (context.profile == Profile.GOBJECT) {
use_pkgconfig = true;
pc += " gobject-2.0";
if (context.thread) {
pc += " gthread-2.0";
}
}
foreach (string pkg in context.get_packages ()) {
if (package_exists (pkg)) {
use_pkgconfig = true;
pc += " " + pkg;
}
}
string pkgflags = "";
if (use_pkgconfig) {
try {
int exit_status;
Process.spawn_command_line_sync (pc, out pkgflags, null, out exit_status);
if (exit_status != 0) {
Report.error (null, "pkg-config exited with status %d".printf (exit_status));
return;
}
} catch (SpawnError e) {
Report.error (null, e.message);
return;
}
}
// TODO compile the C code files in parallel
if (cc_command == null) {
cc_command = "cc";
}
string cmdline = cc_command;
if (context.debug) {
cmdline += " -g";
}
if (context.compile_only) {
cmdline += " -c";
} else if (context.output != null) {
string output = context.output;
if (context.directory != null && context.directory != "" && !Path.is_absolute (context.output)) {
output = "%s%c%s".printf (context.directory, Path.DIR_SEPARATOR, context.output);
}
cmdline += " -o " + Shell.quote (output);
}
/* we're only interested in non-pkg source files */
var source_files = context.get_source_files ();
foreach (SourceFile file in source_files) {
if (file.file_type == SourceFileType.SOURCE) {
cmdline += " " + Shell.quote (file.get_csource_filename ());
}
}
var c_source_files = context.get_c_source_files ();
foreach (string file in c_source_files) {
cmdline += " " + Shell.quote (file);
}
// add libraries after source files to fix linking
// with --as-needed and on Windows
cmdline += " " + pkgflags.strip ();
foreach (string cc_option in cc_options) {
cmdline += " " + Shell.quote (cc_option);
}
if (context.verbose_mode) {
stdout.printf ("%s\n", cmdline);
}
try {
int exit_status;
Process.spawn_command_line_sync (cmdline, null, null, out exit_status);
if (exit_status != 0) {
Report.error (null, "cc exited with status %d".printf (exit_status));
}
} catch (SpawnError e) {
Report.error (null, e.message);
}
/* remove generated C source and header files */
foreach (SourceFile file in source_files) {
if (file.file_type == SourceFileType.SOURCE) {
if (!context.save_csources) {
FileUtils.unlink (file.get_csource_filename ());
}
}
}
}
}
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