204 lines
6.4 KiB
C
204 lines
6.4 KiB
C
/*
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* Useful functions for winegcc
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*
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* Copyright 2000 Francois Gouget
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* Copyright 2002 Dimitrie O. Paun
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* Copyright 2003 Richard Cohen
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include <stdio.h>
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#include <string.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <errno.h>
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#include "utils.h"
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int verbose = 0;
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void error(const char* s, ...)
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{
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va_list ap;
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va_start(ap, s);
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fprintf(stderr, "winegcc: ");
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vfprintf(stderr, s, ap);
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va_end(ap);
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exit(2);
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}
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void create_file(const char* name, int mode, const char* fmt, ...)
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{
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va_list ap;
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FILE *file;
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if (verbose) printf("Creating file %s\n", name);
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va_start(ap, fmt);
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if ( !(file = fopen(name, "w")) )
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error("Unable to open %s for writing\n", name);
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vfprintf(file, fmt, ap);
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va_end(ap);
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fclose(file);
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chmod(name, mode);
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}
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file_type get_file_type(const char* filename)
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{
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/* see tools/winebuild/res32.c: check_header for details */
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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 };
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static const char elf_sig[4] = "\177ELF";
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static const char ar_sig[8] = "!<arch>\n";
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char buf[sizeof(res_sig)];
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int fd, cnt;
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fd = open( filename, O_RDONLY );
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if (fd == -1) return file_na;
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cnt = read(fd, buf, sizeof(buf));
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close( fd );
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if (cnt == -1) return file_na;
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if (cnt == sizeof(res_sig) && !memcmp(buf, res_sig, sizeof(res_sig))) return file_res;
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if (strendswith(filename, ".o")) return file_obj;
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if (strendswith(filename, ".obj")) return file_obj;
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if (strendswith(filename, ".a")) return file_arh;
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if (strendswith(filename, ".res")) return file_res;
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if (strendswith(filename, ".so")) return file_so;
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if (strendswith(filename, ".dylib")) return file_so;
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if (strendswith(filename, ".def")) return file_def;
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if (strendswith(filename, ".spec")) return file_spec;
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if (strendswith(filename, ".rc")) return file_rc;
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if (cnt >= sizeof(elf_sig) && !memcmp(buf, elf_sig, sizeof(elf_sig))) return file_so; /* ELF lib */
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if (cnt >= sizeof(ar_sig) && !memcmp(buf, ar_sig, sizeof(ar_sig))) return file_arh;
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if (cnt >= sizeof(unsigned int) &&
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(*(unsigned int *)buf == 0xfeedface || *(unsigned int *)buf == 0xcefaedfe ||
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*(unsigned int *)buf == 0xfeedfacf || *(unsigned int *)buf == 0xcffaedfe))
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return file_so; /* Mach-O lib */
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return file_other;
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}
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static char* try_lib_path(const char* dir, const char* pre,
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const char* library, const char* ext,
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file_type expected_type)
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{
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char *fullname;
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file_type type;
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/* first try a subdir named from the library we are looking for */
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fullname = strmake("%s/%s/%s%s%s", dir, library, pre, library, ext);
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if (verbose > 1) fprintf(stderr, "Try %s...", fullname);
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type = get_file_type(fullname);
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if (verbose > 1) fprintf(stderr, type == expected_type ? "FOUND!\n" : "no\n");
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if (type == expected_type) return fullname;
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free( fullname );
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fullname = strmake("%s/%s%s%s", dir, pre, library, ext);
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if (verbose > 1) fprintf(stderr, "Try %s...", fullname);
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type = get_file_type(fullname);
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if (verbose > 1) fprintf(stderr, type == expected_type ? "FOUND!\n" : "no\n");
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if (type == expected_type) return fullname;
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free( fullname );
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return 0;
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}
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static file_type guess_lib_type(struct target target, const char* dir,
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const char* library, const char *prefix, const char *suffix, char** file)
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{
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if (target.platform != PLATFORM_WINDOWS &&
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target.platform != PLATFORM_MINGW &&
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target.platform != PLATFORM_CYGWIN)
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{
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/* Unix shared object */
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if ((*file = try_lib_path(dir, prefix, library, ".so", file_so)))
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return file_so;
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/* Mach-O (Darwin/Mac OS X) Dynamic Library behaves mostly like .so */
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if ((*file = try_lib_path(dir, prefix, library, ".dylib", file_so)))
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return file_so;
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/* Windows DLL */
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if ((*file = try_lib_path(dir, prefix, library, ".def", file_def)))
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return file_dll;
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}
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/* static archives */
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if ((*file = try_lib_path(dir, prefix, library, suffix, file_arh)))
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return file_arh;
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return file_na;
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}
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file_type get_lib_type(struct target target, struct strarray path, const char *library,
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const char *prefix, const char *suffix, char** file)
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{
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unsigned int i;
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if (!suffix) suffix = ".a";
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for (i = 0; i < path.count; i++)
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{
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file_type type = guess_lib_type(target, path.str[i], library, prefix, suffix, file);
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if (type != file_na) return type;
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}
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return file_na;
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}
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const char *find_binary( struct strarray prefix, const char *name )
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{
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char *file_name, *args;
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struct strarray dirs = empty_strarray;
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static struct strarray path;
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unsigned int i;
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if (strchr( name, '/' )) return name;
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file_name = xstrdup( name );
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if ((args = strchr( file_name, ' ' ))) *args++ = 0;
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if (!path.count) strarray_addall( &path, strarray_frompath( getenv( "PATH" )));
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strarray_addall( &dirs, prefix );
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strarray_addall( &dirs, path );
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for (i = 0; i < dirs.count; i++)
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{
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struct stat st;
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char *prog = strmake( "%s/%s%s", dirs.str[i], file_name, EXEEXT );
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if (stat( prog, &st ) == 0 && S_ISREG( st.st_mode ) && (st.st_mode & 0111))
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return args ? strmake( "%s %s", prog, args ) : prog;
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free( prog );
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}
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return NULL;
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}
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int spawn(struct strarray prefix, struct strarray args, int ignore_errors)
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{
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int status;
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args.str[0] = find_binary( prefix, args.str[0] );
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if (verbose) strarray_trace( args );
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if ((status = strarray_spawn( args )) && !ignore_errors)
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{
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if (status > 0) error("%s failed\n", args.str[0]);
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else perror("winegcc");
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exit(3);
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}
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return status;
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}
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