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/*
* Useful functions for winegcc
*
* Copyright 2000 Francois Gouget
* Copyright 2002 Dimitrie O. Paun
* Copyright 2003 Richard Cohen
*
* 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 St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <errno.h>
#include "utils.h"
int verbose = 0;
void error(const char* s, ...)
{
va_list ap;
va_start(ap, s);
fprintf(stderr, "winegcc: ");
vfprintf(stderr, s, ap);
va_end(ap);
exit(2);
}
void create_file(const char* name, int mode, const char* fmt, ...)
{
va_list ap;
FILE *file;
if (verbose) printf("Creating file %s\n", name);
va_start(ap, fmt);
if ( !(file = fopen(name, "w")) )
error("Unable to open %s for writing\n", name);
vfprintf(file, fmt, ap);
va_end(ap);
fclose(file);
chmod(name, mode);
}
file_type get_file_type(const char* filename)
{
/* see tools/winebuild/res32.c: check_header for details */
static const char res_sig[] = { 0,0,0,0, 32,0,0,0, 0xff,0xff, 0,0, 0xff,0xff, 0,0, 0,0,0,0, 0,0, 0,0, 0,0,0,0, 0,0,0,0 };
static const char elf_sig[4] = "\177ELF";
static const char ar_sig[8] = "!<arch>\n";
char buf[sizeof(res_sig)];
int fd, cnt;
fd = open( filename, O_RDONLY );
if (fd == -1) return file_na;
cnt = read(fd, buf, sizeof(buf));
close( fd );
if (cnt == -1) return file_na;
if (cnt == sizeof(res_sig) && !memcmp(buf, res_sig, sizeof(res_sig))) return file_res;
if (strendswith(filename, ".o")) return file_obj;
if (strendswith(filename, ".obj")) return file_obj;
if (strendswith(filename, ".a")) return file_arh;
if (strendswith(filename, ".res")) return file_res;
if (strendswith(filename, ".so")) return file_so;
if (strendswith(filename, ".dylib")) return file_so;
if (strendswith(filename, ".def")) return file_spec;
if (strendswith(filename, ".spec")) return file_spec;
if (strendswith(filename, ".rc")) return file_rc;
if (cnt >= sizeof(elf_sig) && !memcmp(buf, elf_sig, sizeof(elf_sig))) return file_so; /* ELF lib */
if (cnt >= sizeof(ar_sig) && !memcmp(buf, ar_sig, sizeof(ar_sig))) return file_arh;
if (cnt >= sizeof(unsigned int) &&
(*(unsigned int *)buf == 0xfeedface || *(unsigned int *)buf == 0xcefaedfe ||
*(unsigned int *)buf == 0xfeedfacf || *(unsigned int *)buf == 0xcffaedfe))
return file_so; /* Mach-O lib */
return file_other;
}
static char* try_lib_path(const char *dir, const char *arch_dir, const char *pre,
const char* library, const char* ext,
file_type expected_type)
{
char *fullname;
file_type type;
/* first try a subdir named from the library we are looking for */
fullname = strmake("%s/%s%s/%s%s%s", dir, library, arch_dir, pre, library, ext);
if (verbose > 1) fprintf(stderr, "Try %s...", fullname);
type = get_file_type(fullname);
if (verbose > 1) fprintf(stderr, type == expected_type ? "FOUND!\n" : "no\n");
if (type == expected_type) return fullname;
free( fullname );
fullname = strmake("%s/%s%s%s", dir, pre, library, ext);
if (verbose > 1) fprintf(stderr, "Try %s...", fullname);
type = get_file_type(fullname);
if (verbose > 1) fprintf(stderr, type == expected_type ? "FOUND!\n" : "no\n");
if (type == expected_type) return fullname;
free( fullname );
return 0;
}
static file_type guess_lib_type(struct target target, const char* dir,
const char* library, const char *prefix, const char *suffix, char** file)
{
const char *arch_dir = "";
if (target.platform != PLATFORM_WINDOWS &&
target.platform != PLATFORM_MINGW &&
target.platform != PLATFORM_CYGWIN)
{
/* Unix shared object */
if ((*file = try_lib_path(dir, "", prefix, library, ".so", file_so)))
return file_so;
/* Mach-O (Darwin/Mac OS X) Dynamic Library behaves mostly like .so */
if ((*file = try_lib_path(dir, "", prefix, library, ".dylib", file_so)))
return file_so;
}
else
{
arch_dir = get_arch_dir( target );
if (!strcmp( suffix, ".a" )) /* try Mingw-style .dll.a import lib */
{
if ((*file = try_lib_path(dir, arch_dir, prefix, library, ".dll.a", file_arh)))
return file_arh;
}
}
/* static archives */
if ((*file = try_lib_path(dir, arch_dir, prefix, library, suffix, file_arh)))
return file_arh;
return file_na;
}
file_type get_lib_type(struct target target, struct strarray path, const char *library,
const char *prefix, const char *suffix, char** file)
{
unsigned int i;
if (!suffix) suffix = ".a";
for (i = 0; i < path.count; i++)
{
file_type type = guess_lib_type(target, path.str[i], library, prefix, suffix, file);
if (type != file_na) return type;
}
return file_na;
}
const char *find_binary( struct strarray prefix, const char *name )
{
char *file_name, *args;
struct strarray dirs = empty_strarray;
static struct strarray path;
unsigned int i;
if (strchr( name, '/' )) return name;
file_name = xstrdup( name );
if ((args = strchr( file_name, ' ' ))) *args++ = 0;
if (!path.count) strarray_addall( &path, strarray_frompath( getenv( "PATH" )));
strarray_addall( &dirs, prefix );
strarray_addall( &dirs, path );
for (i = 0; i < dirs.count; i++)
{
struct stat st;
char *prog = strmake( "%s/%s%s", dirs.str[i], file_name, EXEEXT );
if (stat( prog, &st ) == 0 && S_ISREG( st.st_mode ) && (st.st_mode & 0111))
return args ? strmake( "%s %s", prog, args ) : prog;
free( prog );
}
return NULL;
}
int spawn(struct strarray prefix, struct strarray args, int ignore_errors)
{
int status;
const char *cmd;
cmd = args.str[0] = find_binary( prefix, args.str[0] );
if (verbose) strarray_trace( args );
if ((status = strarray_spawn( args )) && !ignore_errors)
{
if (status > 0) error("%s failed\n", cmd);
else perror("winegcc");
exit(3);
}
return status;
}
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