/****************************************************************************/ /* */ /* GNAT COMPILER COMPONENTS */ /* */ /* A - A D A I N T */ /* */ /* $Revision: 1.145-3.14p $ /* */ /* C Implementation File */ /* */ /* Copyright (C) 1992-2001, Free Software Foundation, Inc. */ /* */ /* GNAT is free software; you can redistribute it and/or modify it under */ /* terms of the GNU General Public License as published by the Free Soft- */ /* ware Foundation; either version 2, or (at your option) any later ver- */ /* sion. GNAT is distributed in the hope that it will be useful, but WITH- */ /* OUT 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 distributed with GNAT; see file COPYING. If not, write */ /* to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, */ /* MA 02111-1307, USA. */ /* */ /* As a special exception, if you link this file with other files to */ /* produce an executable, this file does not by itself cause the resulting */ /* executable to be covered by the GNU General Public License. This except- */ /* ion does not however invalidate any other reasons why the executable */ /* file might be covered by the GNU Public License. */ /* */ /* GNAT was originally developed by the GNAT team at New York University. */ /* It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). */ /* */ /****************************************************************************/ /* This file contains those routines named by Import pragmas in packages */ /* in the GNAT hierarchy (especially GNAT.OS_Lib) and in package Osint. */ /* Many of the subprograms in OS_Lib import standard library calls */ /* directly. This file contains all other routines. */ #ifdef __vxworks /* No need to redefine exit here */ #ifdef exit #undef exit #endif #include "vxWorks.h" #if defined (__mips_vxworks) #include "cacheLib.h" #endif /* __mips_vxworks */ #endif /* VxWorks */ #include "config.h" #include #include #include #include #include #include #include #if defined (__EMX__) || defined (MSDOS) || defined (_WIN32) #include #include #endif #if defined (_WIN32) #include #include #endif #include "a-adaint.h" /* Define symbols O_BINARY and O_TEXT as harmless zeroes if they are not defined in the current system. On DOS-like systems these flags control whether the file is opened/created in text-translation mode (CR/LF in external file mapped to LF in internal file), but in Unix-like systems, no text translation is required, so these flags have no effect. */ #if defined (__EMX__) #include #endif #if defined (MSDOS) #include #endif #ifndef O_BINARY #define O_BINARY 0 #endif #ifndef O_TEXT #define O_TEXT 0 #endif extern char *getenv (); #ifndef EXECUTABLE_SUFFIX #define EXECUTABLE_SUFFIX "" #endif #ifndef OBJECT_SUFFIX #define OBJECT_SUFFIX ".o" #endif #ifndef PATH_SEPARATOR #define PATH_SEPARATOR ':' #endif #ifndef DIR_SEPARATOR #define DIR_SEPARATOR '/' #endif /* Export DIR_SEPARATOR as Dir_Separator, used in g-locfil.adb */ extern char Dir_Separator; char Dir_Separator = DIR_SEPARATOR; /* The GNAT_LIBRARY_TEMPLATE contains a list of expressions that define the base filenames that libraries specified with -lsomelib options may have. This is used by GNATMAKE to check whether an executable is up-to-date or not. The syntax is library_template ::= { pattern ; } pattern NUL pattern ::= [ prefix ] * [ postfix ] These should only specify names of static libraries as it makes no sense to determine at link time if dynamic-link libraries are up to date or not. Any libraries that are not found are supposed to be up-to-date: * if they are needed but not present, the link will fail, * otherwise they are libraries in the system paths and so they are considered part of the system and not checked for that reason. ??? This should be part of a GNAT host-specific compiler file instead of being included in all user applications as well. This is only a temporary work-around for 3.11b. */ #ifndef GNAT_LIBRARY_TEMPLATE #if defined(__EMX__) #define GNAT_LIBRARY_TEMPLATE "*.a" #elif defined(VMS) #define GNAT_LIBRARY_TEMPLATE "*.olb" #else #define GNAT_LIBRARY_TEMPLATE "lib*.a" #endif #endif char *_gnat_library_template = GNAT_LIBRARY_TEMPLATE; /* The following macro HAVE_READDIR_R should be defined if the system provides the routine readdir_r */ #undef HAVE_READDIR_R void to_gm_time (p_time, p_year, p_month, p_day, p_hours, p_mins, p_secs) time_t *p_time; int *p_year, *p_month, *p_day, *p_hours, *p_mins, *p_secs; { struct tm *res; time_t time = *p_time; #ifdef _WIN32 /* On Windows systems, the time is sometimes rounded up to the nearest even second, so if the number of seconds is odd, increment it. */ if (time & 1) time++; #endif res = gmtime (&time); if (res) { *p_year = res->tm_year; *p_month = res->tm_mon; *p_day = res->tm_mday; *p_hours = res->tm_hour; *p_mins = res->tm_min; *p_secs = res->tm_sec; } else { *p_year = *p_month = *p_day = *p_hours = *p_mins = *p_secs = 0; } } /* Try to lock a file, return 1 if success */ #if defined (__vxworks) || defined (MSDOS) || defined (_WIN32) /* Version that does not use link() */ int Try_Lock (dir, file) char *dir; char *file; { char full_path [256]; int fd; sprintf (full_path, "%s%c%s", dir, DIR_SEPARATOR, file); fd = open (full_path, O_CREAT | O_EXCL, 0600); if (fd < 0) { return 0; } close (fd); return 1; } #elif defined (__EMX__) || defined (VMS) /* More cases that do not use link() */ /* identical code, to solve too long line problem ??? */ int Try_Lock (dir, file) char *dir; char *file; { char full_path [256]; int fd; sprintf (full_path, "%s%c%s", dir, DIR_SEPARATOR, file); fd = open (full_path, O_CREAT | O_EXCL, 0600); if (fd < 0) { return 0; } close (fd); return 1; } #else /* Version using link(), more secure over NFS */ int Try_Lock (dir, file) char *dir; char *file; { char full_path [256]; char temp_file [256]; struct stat stat_result; int fd; sprintf (full_path, "%s%c%s", dir, DIR_SEPARATOR, file); sprintf (temp_file, "%s-%d-%d", dir, getpid(), getppid ()); /* Create the temporary file and write the process number */ fd = open (temp_file, O_CREAT | O_WRONLY, 0600); if (fd < 0) { return 0; } close (fd); /* Link it with the new file */ link (temp_file, full_path); /* Count the references on the old one. If we have a count of two, then * the link did succeed. Remove the temporary file before returning */ __gnat_stat (temp_file, &stat_result); unlink (temp_file); return stat_result.st_nlink == 2; } #endif /* Return the maximum file name length. */ int Get_Maximum_File_Name_Length () { #if defined(MSDOS) return 8; #elif defined (VMS) if (getenv ("GNAT$EXTENDED_FILE_SPECIFICATIONS")) return -1; else return 39; #else return -1; #endif } /* Return the default switch character. */ char Get_Switch_Character () { /* Under MSDOS, the switch character is not normally a hyphen, but this is the convention DJGPP uses. Similarly under OS2, the switch character is not normally a hypen, but this is the convention EMX uses. */ return '-'; } /* Return nonzero if file names are case sensitive. */ int Get_File_Names_Case_Sensitive () { #if defined (__EMX__) || defined (MSDOS) || defined (VMS) || defined(WINNT) return 0; #else return 1; #endif } char Get_Default_Identifier_Character_Set () { #if defined (__EMX__) || defined (MSDOS) return 'p'; #else return '1'; #endif } char Get_Dirsep_Char () { return DIR_SEPARATOR; } /* Return the path separator. */ char Get_Pathsep_Char () { return PATH_SEPARATOR; } /* Return the current working directory */ void Get_Current_Dir (char *dir, int *length) { #ifdef VMS /* Force Unix style, which is what GNAT uses internally */ getcwd (dir, *length, 0); #else getcwd (dir, *length); #endif *length = strlen (dir); dir [*length] = DIR_SEPARATOR; ++(*length); dir [*length] = '\0'; } /* Return the suffix for object files */ void get_object_suffix_ptr (len, value) int *len; char **value; { *value = OBJECT_SUFFIX; if (!*value) *len = 0; else *len = strlen (*value); return; } /* Return the suffix for executable files */ void get_executable_suffix_ptr (len, value) int *len; char **value; { *value = EXECUTABLE_SUFFIX; if (!*value) *len = 0; else *len = strlen (*value); return; } /* Return the suffix for debuggable files. Usually this is the same as the executable extension. */ void get_debuggable_suffix_ptr (len, value) int *len; char **value; { #ifndef MSDOS *value = EXECUTABLE_SUFFIX; #else /* On DOS, the extensionless COFF file is what gdb likes. */ *value = ""; #endif if (!*value) *len = 0; else *len = strlen (*value); return; } int open_read (path, fmode) char *path; int fmode; { int fd; int o_fmode = O_BINARY; if (fmode) o_fmode = O_TEXT; #if defined(VMS) /* Optional arguments mbc,deq,fop increase read performance */ fd = open (path, O_RDONLY | o_fmode, 0444, "mbc=16", "deq=64", "fop=tef"); #elif defined(__vxworks) fd = open (path, O_RDONLY | o_fmode, 0444); #else fd = open (path, O_RDONLY | o_fmode); #endif return fd < 0 ? -1 : fd; } #if defined (__EMX__) #define PERM (S_IREAD | S_IWRITE) #else #define PERM (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH) #endif int open_rw (path, fmode) char *path; int fmode; { int fd; int o_fmode = O_BINARY; if (fmode) o_fmode = O_TEXT; #if defined(VMS) fd = open (path, O_RDWR | o_fmode, PERM, "mbc=16", "deq=64", "fop=tef"); #else fd = open (path, O_RDWR | o_fmode, PERM); #endif return fd < 0 ? -1 : fd; } int open_create (path, fmode) char *path; int fmode; { int fd; int o_fmode = O_BINARY; if (fmode) o_fmode = O_TEXT; #if defined(VMS) fd = open (path, O_WRONLY | O_CREAT | O_TRUNC | o_fmode, PERM, "mbc=16", "deq=64", "fop=tef"); #else fd = open (path, O_WRONLY | O_CREAT | O_TRUNC | o_fmode, PERM); #endif return fd < 0 ? -1 : fd; } int open_append (path, fmode) char *path; int fmode; { int fd; int o_fmode = O_BINARY; if (fmode) o_fmode = O_TEXT; #if defined(VMS) fd = open (path, O_WRONLY | O_CREAT | O_APPEND | o_fmode, PERM, "mbc=16", "deq=64", "fop=tef"); #else fd = open (path, O_WRONLY | O_CREAT | O_APPEND | o_fmode, PERM); #endif return fd < 0 ? -1 : fd; } /* Open a new file. Return error (-1) if the file already exists. */ int open_new (path, fmode) char *path; int fmode; { int fd; int o_fmode = O_BINARY; if (fmode) o_fmode = O_TEXT; #if defined(VMS) fd = open (path, O_WRONLY | O_CREAT | O_EXCL | o_fmode, PERM, "mbc=16", "deq=64", "fop=tef"); #else fd = open (path, O_WRONLY | O_CREAT | O_EXCL | o_fmode, PERM); #endif return fd < 0 ? -1 : fd; } /* Open a new temp file. Return error (-1) if the file already exists. Special options for VMS allow the file to be shared between parent and child processes, however they really slow down output. Used in gnatchop. */ int open_new_temp (path, fmode) char *path; int fmode; { int fd; int o_fmode = O_BINARY; if (fmode) o_fmode = O_TEXT; #if defined(VMS) fd = open (path, O_WRONLY | O_CREAT | O_EXCL | o_fmode, PERM, "rfm=stmlf", "ctx=rec", "rat=none", "shr=del,get,put,upd", "mbc=16", "deq=64", "fop=tef"); #else fd = open (path, O_WRONLY | O_CREAT | O_EXCL | o_fmode, PERM); #endif return fd < 0 ? -1 : fd; } int __gnat_mkdir (char *dir_name) { #if defined (_WIN32) return mkdir (dir_name); #elif defined (__vxworks) return mkdir (dir_name); #else return mkdir (dir_name, S_IRWXU | S_IRWXG | S_IRWXO); #endif } /* Return the number of bytes in the specified file. */ long file_length (fd) int fd; { int ret; struct stat statbuf; ret = fstat (fd, &statbuf); if (ret || !S_ISREG (statbuf.st_mode)) return 0; return (statbuf.st_size); } /* create a temporary filename and put it in string pointed to by tmp_filename */ void __gnat_tmp_name (char *tmp_filename) { #ifdef __MINGW32__ { char *pname; /* tempnam try to create a temporary file in directory pointed to by TMP environment variable, in c:\temp if TMP is not set, and in directory specified by P_tmpdir in stdio.h if c:\temp does not exist. The filename will be created with the prefix "gnat-" */ pname = (char *)tempnam ("c:\\temp", "gnat-"); strcpy (tmp_filename, pname); free (pname); } #else tmpnam (tmp_filename); #endif } /* Read the next entry in a directory The returned string points somewhere in the buffer */ char * readdir_gnat (dirp, buffer) DIR *dirp; char* buffer; { /* if possible, try to use the thread-safe version */ #ifdef HAVE_READDIR_R if (readdir_r (dirp, buffer) != NULL) return (((struct dirent*)buffer)->d_name); else return NULL; #else struct dirent* dirent = readdir (dirp); if (dirent != NULL) { strcpy (buffer, dirent->d_name); return buffer; } else return NULL; #endif } /* returns 1 if readdir is thread safe, 0 otherwise */ int readdir_is_thread_safe () { #ifdef HAVE_READDIR_R return 1; #else return 0; #endif } #ifdef _WIN32 /* win32_filetime returns the file modification timestamp using Win32 routines which are immune against daylight saving time change. It is in fact not possible to use fstat for this purpose as the DST modify the st_mtime field of the stat structure. */ time_t win32_filetime (HANDLE h) { BOOL res; FILETIME t_create; FILETIME t_access; FILETIME t_write; unsigned long long timestamp; /* GetFileTime returns FILETIME data which are the number of 100 nanosecs since . This function must return the number of seconds since */ unsigned long long offset = 11644473600; /* Number of seconds between and */ res = GetFileTime (h, &t_create, &t_access, &t_write); timestamp = ((long long)t_write.dwHighDateTime << 32) + t_write.dwLowDateTime; timestamp = (timestamp / 10000000) - offset; return (time_t) timestamp; } #endif /* Return a GNAT time stamp given a file name. */ time_t file_time_name (name) char *name; { struct stat statbuf; #if defined (__EMX__) || defined (MSDOS) int fd = open (name, O_RDONLY | O_BINARY); time_t ret = file_time_fd (fd); close (fd); return ret; #elif defined (_WIN32) HANDLE h = CreateFile (name, GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); time_t ret = win32_filetime (h); CloseHandle (h); return ret; #else int ret = __gnat_stat (name, &statbuf); #ifdef VMS /* VMS has file versioning */ return statbuf.st_ctime; #else return statbuf.st_mtime; #endif #endif } /* Return a GNAT time stamp given a file descriptor. */ time_t file_time_fd (fd) int fd; { /* The following workaround code is due to the fact that under EMX and DJGPP fstat attempts to convert time values to GMT rather than keep the actual OS timestamp of the file. By using the OS2/DOS functions directly the GNAT timestamp are independent of this behavior, which is desired to facilitate the distribution of GNAT compiled libraries. */ #if defined (__EMX__) || defined (MSDOS) #ifdef __EMX__ FILESTATUS fs; int ret = DosQueryFileInfo (fd, 1, (unsigned char *) &fs, sizeof (FILESTATUS)); unsigned file_year = fs.fdateLastWrite.year; unsigned file_month = fs.fdateLastWrite.month; unsigned file_day = fs.fdateLastWrite.day; unsigned file_hour = fs.ftimeLastWrite.hours; unsigned file_min = fs.ftimeLastWrite.minutes; unsigned file_tsec = fs.ftimeLastWrite.twosecs; #else struct ftime fs; int ret = getftime (fd, &fs); unsigned file_year = fs.ft_year; unsigned file_month = fs.ft_month; unsigned file_day = fs.ft_day; unsigned file_hour = fs.ft_hour; unsigned file_min = fs.ft_min; unsigned file_tsec = fs.ft_tsec; #endif /* Calculate the seconds since epoch from the time components. First count the whole days passed. The value for years returned by the DOS and OS2 functions count years from 1980, so to compensate for the UNIX epoch which begins in 1970 start with 10 years worth of days and add days for each four year period since then. */ time_t tot_secs; int cum_days [12] = {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334}; int days_passed = 3652 + (file_year / 4) * 1461; int years_since_leap = file_year % 4; if (years_since_leap == 1) days_passed += 366; else if (years_since_leap == 2) days_passed += 731; else if (years_since_leap == 3) days_passed += 1096; if (file_year > 20) days_passed -= 1; days_passed += cum_days [file_month - 1]; if (years_since_leap == 0 && file_year != 20 && file_month > 2) days_passed++; days_passed += file_day - 1; /* OK - have whole days. Multiply -- then add in other parts. */ tot_secs = days_passed * 86400; tot_secs += file_hour * 3600; tot_secs += file_min * 60; tot_secs += file_tsec * 2; return tot_secs; #elif defined (_WIN32) HANDLE h = (HANDLE) _get_osfhandle (fd); time_t ret = win32_filetime (h); CloseHandle (h); return ret; #else struct stat statbuf; int ret = fstat (fd, &statbuf); #ifdef VMS /* VMS has file versioning */ return statbuf.st_ctime; #else return statbuf.st_mtime; #endif #endif } void get_env_value_ptr (name, len, value) char *name; int *len; char **value; { *value = getenv (name); if (!*value) *len = 0; else *len = strlen (*value); return; } /* VMS specific declarations for set_env_value. */ #ifdef VMS static char *to_host_path_spec PROTO ((char *)); struct descriptor_s { unsigned short len, mbz; char *adr; }; typedef struct _ile3 { unsigned short len, code; char *adr; unsigned short *retlen_adr; } ile_s; #endif void set_env_value (name, value) char *name; char *value; { #if defined (MSDOS) #elif defined (VMS) struct descriptor_s name_desc; /* Put in JOB table for now, so that the project stuff at least works */ struct descriptor_s table_desc = {7, 0, "LNM$JOB"}; char *host_pathspec = to_host_path_spec (value); char *copy_pathspec; int num_dirs_in_pathspec = 1; char *ptr; if (*host_pathspec == 0) return; name_desc.len = strlen (name); name_desc.mbz = 0; name_desc.adr = name; ptr = host_pathspec; while (*ptr++) if (*ptr == ',') num_dirs_in_pathspec++; { int i, status; ile_s *ile_array = alloca (sizeof (ile_s) * num_dirs_in_pathspec + 1); char *copy_pathspec = alloca (strlen (host_pathspec) + 1); char *curr, *next; strcpy (copy_pathspec, host_pathspec); curr = copy_pathspec; for (i = 0; i < num_dirs_in_pathspec; i++) { next = strchr (curr, ','); if (next == 0) next = strchr (curr, 0); *next = 0; ile_array [i].len = strlen (curr); /* Code 2 from lnmdef.h means its a string */ ile_array [i].code = 2; ile_array [i].adr = curr; /* retlen_adr is ignored */ ile_array [i].retlen_adr = 0; curr = next + 1; } /* Terminating item must be zero */ ile_array [i].len = 0; ile_array [i].code = 0; ile_array [i].adr = 0; ile_array [i].retlen_adr = 0; status = LIB$SET_LOGICAL (&name_desc, 0, &table_desc, 0, ile_array); if ((status & 1) != 1) LIB$SIGNAL (status); } #else int size = strlen (name) + strlen (value) + 2; char *expression; expression = (char *) malloc (size * sizeof (char)); sprintf (expression, "%s=%s", name, value); putenv (expression); #endif } #ifdef _WIN32 #include "stdarg.h" #include #endif /* Get the list of installed standard libraries from the HKEY_LOCAL_MACHINE\SOFTWARE\Ada Core Technologies\GNAT\Standard Libraries key. */ char * Get_Libraries_From_Registry () { char *result = ""; #if defined (_WIN32) && ! defined (__vxworks) HKEY reg_key; DWORD name_size, value_size; char name[256]; char value[256]; DWORD type; DWORD index; LONG res; /* First open the key. */ res = RegOpenKeyExA (HKEY_LOCAL_MACHINE, "SOFTWARE", 0, KEY_READ, ®_key); if (res == ERROR_SUCCESS) res = RegOpenKeyExA (reg_key, "Ada Core Technologies", 0, KEY_READ, ®_key); if (res == ERROR_SUCCESS) res = RegOpenKeyExA (reg_key, "GNAT", 0, KEY_READ, ®_key); if (res == ERROR_SUCCESS) res = RegOpenKeyExA (reg_key, "Standard Libraries", 0, KEY_READ, ®_key); /* If the key exists, read out all the values in it and concatenate them into a path. */ for (index = 0; res == ERROR_SUCCESS; index++) { value_size = name_size = 256; res = RegEnumValue (reg_key, index, name, &name_size, 0, &type, value, &value_size); if (res == ERROR_SUCCESS && type == REG_SZ) { char *old_result = result; result = (char *) malloc (strlen (old_result) + value_size + 2); strcpy (result, old_result); strcat (result, value); strcat (result, ";"); } } /* Remove the trailing ";". */ if (result[0] != 0) result[strlen (result) - 1] = 0; #endif return result; } int __gnat_stat (name, statbuf) char *name; struct stat *statbuf; { #ifdef _WIN32 /* under Windows the directory name for the stat function must not be * terminated by a directory separator expect if just after a drive name */ int name_len = strlen (name); char last_char = name [name_len - 1]; char win32_name [4096]; strcpy (win32_name, name); while ((name_len > 1) && ((last_char == '\\') || (last_char == '/'))) { win32_name [name_len - 1] = '\0'; name_len -= 1; last_char = win32_name [name_len - 1]; } if ((name_len == 2) && (win32_name [1] == ':')) strcat (win32_name, "\\"); return stat (win32_name, statbuf); #else return stat (name, statbuf); #endif } int __gnat_file_exists (name) char *name; { struct stat statbuf; return !__gnat_stat (name, &statbuf); } int is_regular_file (name) char *name; { int ret; struct stat statbuf; ret = __gnat_stat (name, &statbuf); return (!ret && S_ISREG (statbuf.st_mode)); } int is_directory (name) char *name; { int ret; struct stat statbuf; ret = __gnat_stat (name, &statbuf); return (!ret && S_ISDIR (statbuf.st_mode)); } int is_writable_file (name) char *name; { int ret; int mode; struct stat statbuf; ret = __gnat_stat (name, &statbuf); mode = statbuf.st_mode & S_IWUSR; return (!ret && mode); } #ifdef VMS /* Defined in VMS header files */ #define fork() (decc$$alloc_vfork_blocks() >= 0 ? \ LIB$GET_CURRENT_INVO_CONTEXT (decc$$get_vfork_jmpbuf()) : -1) #endif #if defined (sun) && defined (__SVR4) /* Using fork() on Solaris will duplicate all the threads. fork1() which */ /* duplicates only the active thread must be used instead, or spawning */ /* subprocess from a program with tasking will lead into numerous problems */ #define fork() fork1() #endif int portable_spawn (args) char *args[]; { int status = 0; int finished; int pid; #if defined (MSDOS) || defined (_WIN32) status = spawnvp (P_WAIT, args [0], args); if (status < 0) return 4; else return status; #elif defined(__vxworks) /* Mods for VxWorks */ pid = sp(args[0], args); /* Spawn process and save pid */ if (pid == -1) return (4); while (taskIdVerify(pid) >= 0) {}; /* Wait until spawned task is complete then continue */ #else #ifdef __EMX__ pid = spawnvp (P_NOWAIT, args [0], args); if (pid == -1) return (4); #else pid = fork (); if (pid == -1) return (4); if (pid == 0) { /* The child */ if (execv (args [0], args) != 0) _exit (1); } #endif; /* The parent */ #ifdef VMS /* Wait doesn't do the right thing on VMS */ finished = waitpid (-1, &status, 0); #else // finished = wait (&status); #endif if (finished != pid || WIFEXITED (status) == 0) return 4; return WEXITSTATUS (status); #endif return 0; } /* WIN32 code to implement a wait call that wait for any child process */ #ifdef _WIN32 #include /* for ECHILD */ /* synchronization code to be thread safe */ CRITICAL_SECTION plist_cs; void __plist_init (void) { InitializeCriticalSection (&plist_cs); } void plist_enter (void) { EnterCriticalSection (&plist_cs); } void plist_leave (void) { LeaveCriticalSection (&plist_cs); } typedef struct _process_list { HANDLE h; struct _process_list *next; } Process_List; Process_List *PLIST = NULL; int plist_length = 0; void add_handle (HANDLE h) { Process_List *pl; pl = (Process_List *) malloc (sizeof (Process_List)); /* -------------------- critical section -------------------- */ plist_enter(); pl->h = h; pl->next = PLIST; PLIST = pl; ++plist_length; plist_leave(); /* -------------------- critical section -------------------- */ } void remove_handle (HANDLE h) { Process_List *pl, *prev; /* -------------------- critical section -------------------- */ plist_enter(); pl = PLIST; while (pl) { if (pl->h == h) { if (pl == PLIST) { PLIST = pl->next; } else { prev->next = pl->next; } free (pl); break; } else { prev = pl; pl = pl->next; } } --plist_length; plist_leave(); /* -------------------- critical section -------------------- */ } int win32_no_block_spawn (char *command, char *args[]) { BOOL result; STARTUPINFO SI; PROCESS_INFORMATION PI; SECURITY_ATTRIBUTES SA; char full_command [2000]; int k; /* startup info */ SI.cb = sizeof (STARTUPINFO); SI.lpReserved = NULL; SI.lpReserved2 = NULL; SI.lpDesktop = NULL; SI.cbReserved2 = 0; SI.lpTitle = NULL; SI.dwFlags = 0; SI.wShowWindow = SW_HIDE; /* security attributes */ SA.nLength = sizeof (SECURITY_ATTRIBUTES); SA.bInheritHandle = TRUE; SA.lpSecurityDescriptor = NULL; /* prepare the command string */ strcpy (full_command, command); strcat (full_command, " "); k = 1; while (args[k]) { strcat (full_command, args[k]); strcat (full_command, " "); k++; } result = CreateProcess (NULL, (char *)full_command, &SA, NULL, TRUE, NORMAL_PRIORITY_CLASS, NULL, NULL, &SI, &PI); if (result == TRUE) { add_handle (PI.hProcess); CloseHandle (PI.hThread); return (int)PI.hProcess; } else return -1; } int win32_wait (int *status) { DWORD exitcode; HANDLE *hl; HANDLE h; DWORD res; int k; Process_List *pl; if (plist_length == 0) { errno = ECHILD; return -1; } hl = (HANDLE *) malloc (sizeof (HANDLE) * plist_length); k = 0; /* -------------------- critical section -------------------- */ plist_enter(); pl = PLIST; while (pl) { hl[k++] = pl->h; pl = pl->next; } plist_leave(); /* -------------------- critical section -------------------- */ res = WaitForMultipleObjects (plist_length, hl, FALSE, INFINITE); h = hl [res - WAIT_OBJECT_0]; free (hl); remove_handle (h); GetExitCodeProcess (h, &exitcode); CloseHandle (h); *status = (int)exitcode; return (int)h; } #endif int portable_no_block_spawn (args) char *args[]; { int pid = 0; #if defined (__EMX__) || defined (MSDOS) /* ??? For PC machines I (Franco) don't know the system calls to implement this routine. So I'll fake it as follows. This routine will behave exactly like the blocking portable_spawn and will systematically return a pid of 0 unless the spawned task did not complete successfully, in which case we return a pid of -1. To synchronize with this the portable_wait below systematically returns a pid of 0 and reports that the subprocess terminated successfully. */ if (spawnvp (P_WAIT, args [0], args) != 0) return (-1); #elif defined (_WIN32) pid = win32_no_block_spawn (args[0], args); return pid; #elif defined (__vxworks) /* Mods for VxWorks */ pid = sp(args[0], args); /* Spawn task and then return (no waiting) */ if (pid == -1) return (4); return pid; #else pid = fork (); if (pid == 0) { /* The child */ if (execv (args [0], args) != 0) _exit (1); } #endif return pid; } int portable_wait (process_status) int *process_status; { int status = 0; int pid = 0; #if defined (_WIN32) pid = win32_wait (&status); #elif defined (__EMX__) || defined (MSDOS) /* ??? See corresponding comment in portable_no_block_spawn. */ #elif defined (__vxworks) /* Not sure what to do here, so do same as __EMX__ case, i.e., nothing but return zero */ #else #ifdef VMS /* Wait doesn't do the right thing on VMS */ pid = waitpid (-1, &status, 0); #else pid = wait (&status); #endif status = status & 0xffff; #endif *process_status = status; return pid; } void os_exit (status) int status; { #ifdef VMS /* Exit without changing 0 to 1 */ __posix_exit (status); #else exit (status); #endif } /* Locate a regular file, give a Path value */ char * locate_regular_file (file_name, path_val) char *file_name; char *path_val; { int len; char *ptr; /* Handle absolute pathnames. */ for (ptr = file_name; *ptr && *ptr != '/' && *ptr != DIR_SEPARATOR; ptr++) ; if (*ptr != 0 #if defined(__EMX__) || defined(MSDOS) || defined(WINNT) || isalpha (file_name [0]) && file_name [1] == ':' #endif ) { if (is_regular_file (file_name)) return xstrdup (file_name); return 0; } if (path_val == 0) return 0; { /* The result has to be smaller than path_val + file_name. */ char *file_path = alloca (strlen (path_val) + strlen (file_name) + 2); char pathsep_char = Get_Pathsep_Char (); for (;;) { for (; *path_val == pathsep_char ; path_val++) ; if (*path_val == 0) return 0; for (ptr = file_path; *path_val && *path_val != pathsep_char; ) *ptr++ = *path_val++; ptr--; if (*ptr != '/' && *ptr != DIR_SEPARATOR) *++ptr = DIR_SEPARATOR; strcpy (++ptr, file_name); if (is_regular_file (file_path)) return xstrdup (file_path); } } return 0; } /* Locate an executable given a Path argument. This routine is only used by gnatbl and should not be used otherwise. Use locate_exec_on_path instead. */ char * locate_exec (exec_name, path_val) char *exec_name; char *path_val; { if (!strstr (exec_name, EXECUTABLE_SUFFIX)) { char *full_exec_name = alloca (strlen(exec_name) + strlen(EXECUTABLE_SUFFIX) + 1); strcpy (full_exec_name, exec_name); strcat (full_exec_name, EXECUTABLE_SUFFIX); return locate_regular_file (full_exec_name, path_val); } else return locate_regular_file (exec_name, path_val); } /* Locate an executable using the Systems default PATH */ char * locate_exec_on_path (exec_name) char *exec_name; { #ifdef VMS /* Warning: getenv only retrieves the first directory in VAXC$PATH */ char *path_val = to_canonical_dir_spec (getenv ("VAXC$PATH"), 0); #else char *path_val = getenv ("PATH"); #endif char *apath_val = alloca (strlen (path_val) + 1); strcpy (apath_val, path_val); return locate_exec (exec_name, apath_val); } #ifdef VMS /* These functions are used to translate to and from VMS and Unix syntax file, directory and path specifications. */ #define MAXNAMES 256 #define NEW_CANONICAL_FILELIST_INCREMENT 64 static char new_canonical_dirspec [255]; static char new_canonical_filespec [255]; static char new_canonical_pathspec [MAXNAMES*255]; static unsigned new_canonical_filelist_index; static unsigned new_canonical_filelist_in_use; static unsigned new_canonical_filelist_allocated; static char **new_canonical_filelist; static char new_host_pathspec [MAXNAMES*255]; static char new_host_dirspec [255]; static char new_host_filespec [255]; /* Routine is called repeatedly by decc$from_vms() via to_canonical_file_list_init() until it returns 0 or the expansion runs out. */ static int wildcard_translate_unix (name) char *name; { char *ver; char buff [256]; strcpy (buff, name); ver = strrchr (buff, '.'); /* Chop off the version */ if (ver) *ver = 0; /* Dynamically extend the allocation by the increment */ if (new_canonical_filelist_in_use == new_canonical_filelist_allocated) { new_canonical_filelist_allocated += NEW_CANONICAL_FILELIST_INCREMENT; new_canonical_filelist = (char **) realloc (new_canonical_filelist, new_canonical_filelist_allocated * sizeof (char *)); } new_canonical_filelist[new_canonical_filelist_in_use++] = xstrdup (buff); return 1; } /* Translate a wildcard VMS file spec into a list of Unix file specs. First do full translation and copy the results into a list (_init), then return them one at a time (_next). If onlydirs set, only expand directory files. */ int to_canonical_file_list_init (filespec, onlydirs) char *filespec; int onlydirs; { int len; char buff [256]; len = strlen (filespec); strcpy (buff, filespec); /* Only look for directories */ if (onlydirs && !strstr (&buff [len-5], "*.dir")) strcat (buff, "*.dir"); decc$from_vms(buff, wildcard_translate_unix, 1); /* Remove the .dir extension */ if (onlydirs) { int i; char *ext; for (i=0; i 1 && new_host_dirspec [len-1] == '/') { new_host_dirspec [len-1] = 0; len--; } decc$to_vms (new_host_dirspec, translate_unix, 1, 2); strcpy (new_host_dirspec, filename_buff); return new_host_dirspec; } /* Translate a Unix syntax file specification into VMS syntax. If indicators of VMS syntax found, return input string. */ char * to_host_file_spec (filespec) char *filespec; { strcpy (new_host_filespec, ""); if (strchr (filespec, ']') || strchr (filespec, ':')) strcpy (new_host_filespec, filespec); else { decc$to_vms (filespec, translate_unix, 1, 1); strcpy (new_host_filespec, filename_buff); } return new_host_filespec; } void adjust_os_resource_limits () { SYS$ADJWSL (131072, 0); } #else /* Dummy functions for Osint import for non-VMS systems */ int to_canonical_file_list_init (dirspec) char *dirspec; { return 0; } char * to_canonical_file_list_next () { return ""; } void to_canonical_file_list_free () {;} char * to_canonical_dir_spec (dirspec, prefixflag) char *dirspec; int prefixflag; { return dirspec; } char * to_canonical_file_spec (filespec) char *filespec; { return filespec; } char * to_canonical_path_spec (pathspec) char *pathspec; { return pathspec; } char * to_host_dir_spec (dirspec, prefixflag) char *dirspec; int prefixflag; { return dirspec; } char * to_host_file_spec (filespec) char *filespec; { return filespec; } void adjust_os_resource_limits () {;} #endif /* for EMX, we cannot include dummy in libgcc, since it is too difficult to coordinate this with the EMX distribution. Consequently, we put the definition of dummy() which is used for exception handling, here */ #if defined (__EMX__) void __dummy () {} #endif #if defined (__mips_vxworks) int _flush_cache() { CACHE_USER_FLUSH (0, ENTIRE_CACHE); } #endif #if defined (CROSS_COMPILE) || \ ( !(defined (sparc) && defined (sun) && defined (__SVR4)) \ && !defined (linux) \ && !defined (sgi) \ && !defined (hpux) \ && !(defined (__alpha__) && defined (__osf__)) \ && !defined (__MINGW32__)) /* Dummy function to satisfy g-trasym.o. Currently Solaris sparc, HP/UX, IRIX, Linux, Tru64 & Windows provide a non-dummy version of this procedure in libaddr2line.a */ void convert_addresses (addrs, n_addr, buf, len) void *addrs; int n_addr; void *buf; int *len; { *len = 0; } #endif