diff options
Diffstat (limited to 'gcc-4.8.1/gcc/ada/adaint.c')
| -rw-r--r-- | gcc-4.8.1/gcc/ada/adaint.c | 3857 |
1 files changed, 3857 insertions, 0 deletions
diff --git a/gcc-4.8.1/gcc/ada/adaint.c b/gcc-4.8.1/gcc/ada/adaint.c new file mode 100644 index 000000000..dc94d63d5 --- /dev/null +++ b/gcc-4.8.1/gcc/ada/adaint.c @@ -0,0 +1,3857 @@ +/**************************************************************************** + * * + * GNAT COMPILER COMPONENTS * + * * + * A D A I N T * + * * + * C Implementation File * + * * + * Copyright (C) 1992-2012, 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 3, 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. * + * * + * As a special exception under Section 7 of GPL version 3, you are granted * + * additional permissions described in the GCC Runtime Library Exception, * + * version 3.1, as published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License and * + * a copy of the GCC Runtime Library Exception along with this program; * + * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see * + * <http://www.gnu.org/licenses/>. * + * * + * GNAT was originally developed by the GNAT team at New York University. * + * Extensive contributions were provided by Ada Core Technologies Inc. * + * * + ****************************************************************************/ + +/* 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. */ +#undef exit + +/* We want to use the POSIX variants of include files. */ +#define POSIX +#include "vxWorks.h" + +#if defined (__mips_vxworks) +#include "cacheLib.h" +#endif /* __mips_vxworks */ + +/* If SMP, access vxCpuConfiguredGet */ +#ifdef _WRS_CONFIG_SMP +#include <vxCpuLib.h> +#endif /* _WRS_CONFIG_SMP */ + +/* We need to know the VxWorks version because some file operations + (such as chmod) are only available on VxWorks 6. */ +#include "version.h" + +#endif /* VxWorks */ + +#if defined (__APPLE__) +#include <unistd.h> +#endif + +#if defined (__hpux__) +#include <sys/param.h> +#include <sys/pstat.h> +#endif + +#ifdef VMS +#define _POSIX_EXIT 1 +#define HOST_EXECUTABLE_SUFFIX ".exe" +#define HOST_OBJECT_SUFFIX ".obj" +#endif + +#ifdef IN_RTS +#include "tconfig.h" +#include "tsystem.h" +#include <sys/stat.h> +#include <fcntl.h> +#include <time.h> +#ifdef VMS +#include <unixio.h> +#endif + +#if defined (__vxworks) || defined (__ANDROID__) +/* S_IREAD and S_IWRITE are not defined in VxWorks or Android */ +#ifndef S_IREAD +#define S_IREAD (S_IRUSR | S_IRGRP | S_IROTH) +#endif + +#ifndef S_IWRITE +#define S_IWRITE (S_IWUSR) +#endif +#endif + +/* We don't have libiberty, so use malloc. */ +#define xmalloc(S) malloc (S) +#define xrealloc(V,S) realloc (V,S) +#else +#include "config.h" +#include "system.h" +#include "version.h" +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +#if defined (__MINGW32__) + +#if defined (RTX) +#include <windows.h> +#include <Rtapi.h> +#else +#include "mingw32.h" + +/* Current code page to use, set in initialize.c. */ +UINT CurrentCodePage; +#endif + +#include <sys/utime.h> + +/* For isalpha-like tests in the compiler, we're expected to resort to + safe-ctype.h/ISALPHA. This isn't available for the runtime library + build, so we fallback on ctype.h/isalpha there. */ + +#ifdef IN_RTS +#include <ctype.h> +#define ISALPHA isalpha +#endif + +#elif defined (__Lynx__) + +/* Lynx utime.h only defines the entities of interest to us if + defined (VMOS_DEV), so ... */ +#define VMOS_DEV +#include <utime.h> +#undef VMOS_DEV + +#elif !defined (VMS) +#include <utime.h> +#endif + +/* wait.h processing */ +#ifdef __MINGW32__ +#if OLD_MINGW +#include <sys/wait.h> +#endif +#elif defined (__vxworks) && defined (__RTP__) +#include <wait.h> +#elif defined (__Lynx__) +/* ??? We really need wait.h and it includes resource.h on Lynx. GCC + has a resource.h header as well, included instead of the lynx + version in our setup, causing lots of errors. We don't really need + the lynx contents of this file, so just workaround the issue by + preventing the inclusion of the GCC header from doing anything. */ +#define GCC_RESOURCE_H +#include <sys/wait.h> +#elif defined (__nucleus__) +/* No wait() or waitpid() calls available */ +#else +/* Default case */ +#include <sys/wait.h> +#endif + +#if defined (_WIN32) +#elif defined (VMS) + +/* Header files and definitions for __gnat_set_file_time_name. */ + +#define __NEW_STARLET 1 +#include <vms/rms.h> +#include <vms/atrdef.h> +#include <vms/fibdef.h> +#include <vms/stsdef.h> +#include <vms/iodef.h> +#include <errno.h> +#include <vms/descrip.h> +#include <string.h> +#include <unixlib.h> + +/* Use native 64-bit arithmetic. */ +#define unix_time_to_vms(X,Y) \ + { unsigned long long reftime, tmptime = (X); \ + $DESCRIPTOR (unixtime,"1-JAN-1970 0:00:00.00"); \ + SYS$BINTIM (&unixtime, &reftime); \ + Y = tmptime * 10000000 + reftime; } + +/* descrip.h doesn't have everything ... */ +typedef struct fibdef* __fibdef_ptr32 __attribute__ (( mode (SI) )); +struct dsc$descriptor_fib +{ + unsigned int fib$l_len; + __fibdef_ptr32 fib$l_addr; +}; + +/* I/O Status Block. */ +struct IOSB +{ + unsigned short status, count; + unsigned int devdep; +}; + +static char *tryfile; + +/* Variable length string. */ +struct vstring +{ + short length; + char string[NAM$C_MAXRSS+1]; +}; + +#define SYI$_ACTIVECPU_CNT 0x111e +extern int LIB$GETSYI (int *, unsigned int *); + +#else +#include <utime.h> +#endif + +#if defined (_WIN32) +#include <process.h> +#endif + +#if defined (_WIN32) + +#include <dir.h> +#include <windows.h> +#include <accctrl.h> +#include <aclapi.h> +#undef DIR_SEPARATOR +#define DIR_SEPARATOR '\\' +#endif + +#include "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. */ + +#ifndef O_BINARY +#define O_BINARY 0 +#endif + +#ifndef O_TEXT +#define O_TEXT 0 +#endif + +#ifndef HOST_EXECUTABLE_SUFFIX +#define HOST_EXECUTABLE_SUFFIX "" +#endif + +#ifndef HOST_OBJECT_SUFFIX +#define HOST_OBJECT_SUFFIX ".o" +#endif + +#ifndef PATH_SEPARATOR +#define PATH_SEPARATOR ':' +#endif + +#ifndef DIR_SEPARATOR +#define DIR_SEPARATOR '/' +#endif + +/* Check for cross-compilation */ +#if defined (CROSS_COMPILE) || defined (CROSS_DIRECTORY_STRUCTURE) +#define IS_CROSS 1 +int __gnat_is_cross_compiler = 1; +#else +#undef IS_CROSS +int __gnat_is_cross_compiler = 0; +#endif + +char __gnat_dir_separator = DIR_SEPARATOR; + +char __gnat_path_separator = PATH_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 (VMS) +#define GNAT_LIBRARY_TEMPLATE "*.olb" +#else +#define GNAT_LIBRARY_TEMPLATE "lib*.a" +#endif +#endif + +const char *__gnat_library_template = GNAT_LIBRARY_TEMPLATE; + +/* This variable is used in hostparm.ads to say whether the host is a VMS + system. */ +#ifdef VMS +int __gnat_vmsp = 1; +#else +int __gnat_vmsp = 0; +#endif + +#if defined (VMS) +#define GNAT_MAX_PATH_LEN 256 /* PATH_MAX */ + +#elif defined (__vxworks) || defined (__OPENNT) || defined(__nucleus__) +#define GNAT_MAX_PATH_LEN PATH_MAX + +#else + +#if defined (__MINGW32__) +#include "mingw32.h" + +#if OLD_MINGW +#include <sys/param.h> +#endif + +#else +#include <sys/param.h> +#endif + +#ifdef MAXPATHLEN +#define GNAT_MAX_PATH_LEN MAXPATHLEN +#else +#define GNAT_MAX_PATH_LEN 256 +#endif + +#endif + +/* Used for Ada bindings */ +int __gnat_size_of_file_attributes = sizeof (struct file_attributes); + +void __gnat_stat_to_attr (int fd, char* name, struct file_attributes* attr); + +/* The __gnat_max_path_len variable is used to export the maximum + length of a path name to Ada code. max_path_len is also provided + for compatibility with older GNAT versions, please do not use + it. */ + +int __gnat_max_path_len = GNAT_MAX_PATH_LEN; +int max_path_len = GNAT_MAX_PATH_LEN; + +/* Control whether we can use ACL on Windows. */ + +int __gnat_use_acl = 1; + +/* The following macro HAVE_READDIR_R should be defined if the + system provides the routine readdir_r. */ +#undef HAVE_READDIR_R + +#if defined(VMS) && defined (__LONG_POINTERS) + +/* Return a 32 bit pointer to an array of 32 bit pointers + given a 64 bit pointer to an array of 64 bit pointers */ + +typedef __char_ptr32 *__char_ptr_char_ptr32 __attribute__ ((mode (SI))); + +static __char_ptr_char_ptr32 +to_ptr32 (char **ptr64) +{ + int argc; + __char_ptr_char_ptr32 short_argv; + + for (argc=0; ptr64[argc]; argc++); + + /* Reallocate argv with 32 bit pointers. */ + short_argv = (__char_ptr_char_ptr32) decc$malloc + (sizeof (__char_ptr32) * (argc + 1)); + + for (argc=0; ptr64[argc]; argc++) + short_argv[argc] = (__char_ptr32) decc$strdup (ptr64[argc]); + + short_argv[argc] = (__char_ptr32) 0; + return short_argv; + +} +#define MAYBE_TO_PTR32(argv) to_ptr32 (argv) +#else +#define MAYBE_TO_PTR32(argv) argv +#endif + +static const char ATTR_UNSET = 127; + +/* Reset the file attributes as if no system call had been performed */ + +void +__gnat_reset_attributes + (struct file_attributes* attr) +{ + attr->exists = ATTR_UNSET; + + attr->writable = ATTR_UNSET; + attr->readable = ATTR_UNSET; + attr->executable = ATTR_UNSET; + + attr->regular = ATTR_UNSET; + attr->symbolic_link = ATTR_UNSET; + attr->directory = ATTR_UNSET; + + attr->timestamp = (OS_Time)-2; + attr->file_length = -1; +} + +OS_Time +__gnat_current_time + (void) +{ + time_t res = time (NULL); + return (OS_Time) res; +} + +/* Return the current local time as a string in the ISO 8601 format of + "YYYY-MM-DD HH:MM:SS.SS". The returned string is 22 + 1 (NULL) characters + long. */ + +void +__gnat_current_time_string + (char *result) +{ + const char *format = "%Y-%m-%d %H:%M:%S"; + /* Format string necessary to describe the ISO 8601 format */ + + const time_t t_val = time (NULL); + + strftime (result, 22, format, localtime (&t_val)); + /* Convert the local time into a string following the ISO format, copying + at most 22 characters into the result string. */ + + result [19] = '.'; + result [20] = '0'; + result [21] = '0'; + /* The sub-seconds are manually set to zero since type time_t lacks the + precision necessary for nanoseconds. */ +} + +void +__gnat_to_gm_time + (OS_Time *p_time, + int *p_year, + int *p_month, + int *p_day, + int *p_hours, + int *p_mins, + int *p_secs) +{ + struct tm *res; + time_t time = (time_t) *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 + +#ifdef VMS + res = localtime (&time); +#else + res = gmtime (&time); +#endif + + 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; +} + +/* Place the contents of the symbolic link named PATH in the buffer BUF, + which has size BUFSIZ. If PATH is a symbolic link, then return the number + of characters of its content in BUF. Otherwise, return -1. + For systems not supporting symbolic links, always return -1. */ + +int +__gnat_readlink (char *path ATTRIBUTE_UNUSED, + char *buf ATTRIBUTE_UNUSED, + size_t bufsiz ATTRIBUTE_UNUSED) +{ +#if defined (_WIN32) || defined (VMS) \ + || defined(__vxworks) || defined (__nucleus__) + return -1; +#else + return readlink (path, buf, bufsiz); +#endif +} + +/* Creates a symbolic link named NEWPATH which contains the string OLDPATH. + If NEWPATH exists it will NOT be overwritten. + For systems not supporting symbolic links, always return -1. */ + +int +__gnat_symlink (char *oldpath ATTRIBUTE_UNUSED, + char *newpath ATTRIBUTE_UNUSED) +{ +#if defined (_WIN32) || defined (VMS) \ + || defined(__vxworks) || defined (__nucleus__) + return -1; +#else + return symlink (oldpath, newpath); +#endif +} + +/* Try to lock a file, return 1 if success. */ + +#if defined (__vxworks) || defined (__nucleus__) \ + || defined (_WIN32) || defined (VMS) + +/* Version that does not use link. */ + +int +__gnat_try_lock (char *dir, char *file) +{ + int fd; +#ifdef __MINGW32__ + TCHAR wfull_path[GNAT_MAX_PATH_LEN]; + TCHAR wfile[GNAT_MAX_PATH_LEN]; + TCHAR wdir[GNAT_MAX_PATH_LEN]; + + S2WSC (wdir, dir, GNAT_MAX_PATH_LEN); + S2WSC (wfile, file, GNAT_MAX_PATH_LEN); + + _stprintf (wfull_path, _T("%s%c%s"), wdir, _T(DIR_SEPARATOR), wfile); + fd = _topen (wfull_path, O_CREAT | O_EXCL, 0600); +#else + char full_path[256]; + + sprintf (full_path, "%s%c%s", dir, DIR_SEPARATOR, file); + fd = open (full_path, O_CREAT | O_EXCL, 0600); +#endif + + if (fd < 0) + return 0; + + close (fd); + return 1; +} + +#else + +/* Version using link(), more secure over NFS. */ +/* See TN 6913-016 for discussion ??? */ + +int +__gnat_try_lock (char *dir, char *file) +{ + char full_path[256]; + char temp_file[256]; + GNAT_STRUCT_STAT stat_result; + int fd; + + sprintf (full_path, "%s%c%s", dir, DIR_SEPARATOR, file); + sprintf (temp_file, "%s%cTMP-%ld-%ld", + dir, DIR_SEPARATOR, (long)getpid(), (long)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 +__gnat_get_maximum_file_name_length (void) +{ +#if defined (VMS) + if (getenv ("GNAT$EXTENDED_FILE_SPECIFICATIONS")) + return -1; + else + return 39; +#else + return -1; +#endif +} + +/* Return nonzero if file names are case sensitive. */ + +static int file_names_case_sensitive_cache = -1; + +int +__gnat_get_file_names_case_sensitive (void) +{ + if (file_names_case_sensitive_cache == -1) + { + const char *sensitive = getenv ("GNAT_FILE_NAME_CASE_SENSITIVE"); + + if (sensitive != NULL + && (sensitive[0] == '0' || sensitive[0] == '1') + && sensitive[1] == '\0') + file_names_case_sensitive_cache = sensitive[0] - '0'; + else +#if defined (VMS) || defined (WINNT) || defined (__APPLE__) + file_names_case_sensitive_cache = 0; +#else + file_names_case_sensitive_cache = 1; +#endif + } + return file_names_case_sensitive_cache; +} + +/* Return nonzero if environment variables are case sensitive. */ + +int +__gnat_get_env_vars_case_sensitive (void) +{ +#if defined (VMS) || defined (WINNT) + return 0; +#else + return 1; +#endif +} + +char +__gnat_get_default_identifier_character_set (void) +{ + return '1'; +} + +/* Return the current working directory. */ + +void +__gnat_get_current_dir (char *dir, int *length) +{ +#if defined (__MINGW32__) + TCHAR wdir[GNAT_MAX_PATH_LEN]; + + _tgetcwd (wdir, *length); + + WS2SC (dir, wdir, GNAT_MAX_PATH_LEN); + +#elif defined (VMS) + /* Force Unix style, which is what GNAT uses internally. */ + getcwd (dir, *length, 0); +#else + getcwd (dir, *length); +#endif + + *length = strlen (dir); + + if (dir [*length - 1] != DIR_SEPARATOR) + { + dir [*length] = DIR_SEPARATOR; + ++(*length); + } + dir[*length] = '\0'; +} + +/* Return the suffix for object files. */ + +void +__gnat_get_object_suffix_ptr (int *len, const char **value) +{ + *value = HOST_OBJECT_SUFFIX; + + if (*value == 0) + *len = 0; + else + *len = strlen (*value); + + return; +} + +/* Return the suffix for executable files. */ + +void +__gnat_get_executable_suffix_ptr (int *len, const char **value) +{ + *value = HOST_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 +__gnat_get_debuggable_suffix_ptr (int *len, const char **value) +{ + *value = HOST_EXECUTABLE_SUFFIX; + + if (*value == 0) + *len = 0; + else + *len = strlen (*value); + + return; +} + +/* Returns the OS filename and corresponding encoding. */ + +void +__gnat_os_filename (char *filename ATTRIBUTE_UNUSED, + char *w_filename ATTRIBUTE_UNUSED, + char *os_name, int *o_length, + char *encoding ATTRIBUTE_UNUSED, int *e_length) +{ +#if defined (_WIN32) && ! defined (__vxworks) && ! defined (IS_CROSS) + WS2SC (os_name, (TCHAR *)w_filename, (DWORD)*o_length); + *o_length = strlen (os_name); + strcpy (encoding, "encoding=utf8"); + *e_length = strlen (encoding); +#else + strcpy (os_name, filename); + *o_length = strlen (filename); + *e_length = 0; +#endif +} + +/* Delete a file. */ + +int +__gnat_unlink (char *path) +{ +#if defined (__MINGW32__) && ! defined (__vxworks) && ! defined (IS_CROSS) + { + TCHAR wpath[GNAT_MAX_PATH_LEN]; + + S2WSC (wpath, path, GNAT_MAX_PATH_LEN); + return _tunlink (wpath); + } +#else + return unlink (path); +#endif +} + +/* Rename a file. */ + +int +__gnat_rename (char *from, char *to) +{ +#if defined (__MINGW32__) && ! defined (__vxworks) && ! defined (IS_CROSS) + { + TCHAR wfrom[GNAT_MAX_PATH_LEN], wto[GNAT_MAX_PATH_LEN]; + + S2WSC (wfrom, from, GNAT_MAX_PATH_LEN); + S2WSC (wto, to, GNAT_MAX_PATH_LEN); + return _trename (wfrom, wto); + } +#else + return rename (from, to); +#endif +} + +/* Changing directory. */ + +int +__gnat_chdir (char *path) +{ +#if defined (__MINGW32__) && ! defined (__vxworks) && ! defined (IS_CROSS) + { + TCHAR wpath[GNAT_MAX_PATH_LEN]; + + S2WSC (wpath, path, GNAT_MAX_PATH_LEN); + return _tchdir (wpath); + } +#else + return chdir (path); +#endif +} + +/* Removing a directory. */ + +int +__gnat_rmdir (char *path) +{ +#if defined (__MINGW32__) && ! defined (__vxworks) && ! defined (IS_CROSS) + { + TCHAR wpath[GNAT_MAX_PATH_LEN]; + + S2WSC (wpath, path, GNAT_MAX_PATH_LEN); + return _trmdir (wpath); + } +#elif defined (VTHREADS) + /* rmdir not available */ + return -1; +#else + return rmdir (path); +#endif +} + +FILE * +__gnat_fopen (char *path, char *mode, int encoding ATTRIBUTE_UNUSED) +{ +#if defined (_WIN32) && ! defined (__vxworks) && ! defined (IS_CROSS) + TCHAR wpath[GNAT_MAX_PATH_LEN]; + TCHAR wmode[10]; + + S2WS (wmode, mode, 10); + + if (encoding == Encoding_Unspecified) + S2WSC (wpath, path, GNAT_MAX_PATH_LEN); + else if (encoding == Encoding_UTF8) + S2WSU (wpath, path, GNAT_MAX_PATH_LEN); + else + S2WS (wpath, path, GNAT_MAX_PATH_LEN); + + return _tfopen (wpath, wmode); +#elif defined (VMS) + return decc$fopen (path, mode); +#else + return GNAT_FOPEN (path, mode); +#endif +} + +FILE * +__gnat_freopen (char *path, + char *mode, + FILE *stream, + int encoding ATTRIBUTE_UNUSED) +{ +#if defined (_WIN32) && ! defined (__vxworks) && ! defined (IS_CROSS) + TCHAR wpath[GNAT_MAX_PATH_LEN]; + TCHAR wmode[10]; + + S2WS (wmode, mode, 10); + + if (encoding == Encoding_Unspecified) + S2WSC (wpath, path, GNAT_MAX_PATH_LEN); + else if (encoding == Encoding_UTF8) + S2WSU (wpath, path, GNAT_MAX_PATH_LEN); + else + S2WS (wpath, path, GNAT_MAX_PATH_LEN); + + return _tfreopen (wpath, wmode, stream); +#elif defined (VMS) + return decc$freopen (path, mode, stream); +#else + return freopen (path, mode, stream); +#endif +} + +int +__gnat_open_read (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); +#elif defined (__MINGW32__) + { + TCHAR wpath[GNAT_MAX_PATH_LEN]; + + S2WSC (wpath, path, GNAT_MAX_PATH_LEN); + fd = _topen (wpath, O_RDONLY | o_fmode, 0444); + } +#else + fd = open (path, O_RDONLY | o_fmode); +#endif + + return fd < 0 ? -1 : fd; +} + +#if defined (__MINGW32__) +#define PERM (S_IREAD | S_IWRITE) +#elif defined (VMS) +/* Excerpt from DECC C RTL Reference Manual: + To create files with OpenVMS RMS default protections using the UNIX + system-call functions umask, mkdir, creat, and open, call mkdir, creat, + and open with a file-protection mode argument of 0777 in a program + that never specifically calls umask. These default protections include + correctly establishing protections based on ACLs, previous versions of + files, and so on. */ +#define PERM 0777 +#else +#define PERM (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH) +#endif + +int +__gnat_open_rw (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"); +#elif defined (__MINGW32__) + { + TCHAR wpath[GNAT_MAX_PATH_LEN]; + + S2WSC (wpath, path, GNAT_MAX_PATH_LEN); + fd = _topen (wpath, O_RDWR | o_fmode, PERM); + } +#else + fd = open (path, O_RDWR | o_fmode, PERM); +#endif + + return fd < 0 ? -1 : fd; +} + +int +__gnat_open_create (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"); +#elif defined (__MINGW32__) + { + TCHAR wpath[GNAT_MAX_PATH_LEN]; + + S2WSC (wpath, path, GNAT_MAX_PATH_LEN); + fd = _topen (wpath, O_WRONLY | O_CREAT | O_TRUNC | o_fmode, PERM); + } +#else + fd = open (path, O_WRONLY | O_CREAT | O_TRUNC | o_fmode, PERM); +#endif + + return fd < 0 ? -1 : fd; +} + +int +__gnat_create_output_file (char *path) +{ + int fd; +#if defined (VMS) + fd = open (path, O_WRONLY | O_CREAT | O_TRUNC | O_TEXT, PERM, + "rfm=stmlf", "ctx=rec", "rat=none", "rop=nlk", + "shr=del,get,put,upd"); +#elif defined (__MINGW32__) + { + TCHAR wpath[GNAT_MAX_PATH_LEN]; + + S2WSC (wpath, path, GNAT_MAX_PATH_LEN); + fd = _topen (wpath, O_WRONLY | O_CREAT | O_TRUNC | O_TEXT, PERM); + } +#else + fd = open (path, O_WRONLY | O_CREAT | O_TRUNC | O_TEXT, PERM); +#endif + + return fd < 0 ? -1 : fd; +} + +int +__gnat_create_output_file_new (char *path) +{ + int fd; +#if defined (VMS) + fd = open (path, O_WRONLY | O_CREAT | O_TRUNC | O_TEXT | O_EXCL, PERM, + "rfm=stmlf", "ctx=rec", "rat=none", "rop=nlk", + "shr=del,get,put,upd"); +#elif defined (__MINGW32__) + { + TCHAR wpath[GNAT_MAX_PATH_LEN]; + + S2WSC (wpath, path, GNAT_MAX_PATH_LEN); + fd = _topen (wpath, O_WRONLY | O_CREAT | O_TRUNC | O_TEXT | O_EXCL, PERM); + } +#else + fd = open (path, O_WRONLY | O_CREAT | O_TRUNC | O_TEXT | O_EXCL, PERM); +#endif + + return fd < 0 ? -1 : fd; +} + +int +__gnat_open_append (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"); +#elif defined (__MINGW32__) + { + TCHAR wpath[GNAT_MAX_PATH_LEN]; + + S2WSC (wpath, path, GNAT_MAX_PATH_LEN); + fd = _topen (wpath, O_WRONLY | O_CREAT | O_APPEND | o_fmode, PERM); + } +#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 +__gnat_open_new (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"); +#elif defined (__MINGW32__) + { + TCHAR wpath[GNAT_MAX_PATH_LEN]; + + S2WSC (wpath, path, GNAT_MAX_PATH_LEN); + fd = _topen (wpath, O_WRONLY | O_CREAT | O_EXCL | o_fmode, PERM); + } +#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 +__gnat_open_new_temp (char *path, int fmode) +{ + int fd; + int o_fmode = O_BINARY; + + strcpy (path, "GNAT-XXXXXX"); + +#if (defined (__FreeBSD__) || defined (__NetBSD__) || defined (__OpenBSD__) \ + || defined (linux) || defined(__GLIBC__)) && !defined (__vxworks) + return mkstemp (path); +#elif defined (__Lynx__) + mktemp (path); +#elif defined (__nucleus__) + return -1; +#else + if (mktemp (path) == NULL) + return -1; +#endif + + 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; +} + +/**************************************************************** + ** Perform a call to GNAT_STAT or GNAT_FSTAT, and extract as much information + ** as possible from it, storing the result in a cache for later reuse + ****************************************************************/ + +void +__gnat_stat_to_attr (int fd, char* name, struct file_attributes* attr) +{ + GNAT_STRUCT_STAT statbuf; + int ret; + + if (fd != -1) + ret = GNAT_FSTAT (fd, &statbuf); + else + ret = __gnat_stat (name, &statbuf); + + attr->regular = (!ret && S_ISREG (statbuf.st_mode)); + attr->directory = (!ret && S_ISDIR (statbuf.st_mode)); + + if (!attr->regular) + attr->file_length = 0; + else + /* st_size may be 32 bits, or 64 bits which is converted to long. We + don't return a useful value for files larger than 2 gigabytes in + either case. */ + attr->file_length = statbuf.st_size; /* all systems */ + + attr->exists = !ret; + +#if !defined (_WIN32) || defined (RTX) + /* on Windows requires extra system call, see __gnat_is_readable_file_attr */ + attr->readable = (!ret && (statbuf.st_mode & S_IRUSR)); + attr->writable = (!ret && (statbuf.st_mode & S_IWUSR)); + attr->executable = (!ret && (statbuf.st_mode & S_IXUSR)); +#endif + + if (ret != 0) { + attr->timestamp = (OS_Time)-1; + } else { +#ifdef VMS + /* VMS has file versioning. */ + attr->timestamp = (OS_Time)statbuf.st_ctime; +#else + attr->timestamp = (OS_Time)statbuf.st_mtime; +#endif + } +} + +/**************************************************************** + ** Return the number of bytes in the specified file + ****************************************************************/ + +long +__gnat_file_length_attr (int fd, char* name, struct file_attributes* attr) +{ + if (attr->file_length == -1) { + __gnat_stat_to_attr (fd, name, attr); + } + + return attr->file_length; +} + +long +__gnat_file_length (int fd) +{ + struct file_attributes attr; + __gnat_reset_attributes (&attr); + return __gnat_file_length_attr (fd, NULL, &attr); +} + +long +__gnat_named_file_length (char *name) +{ + struct file_attributes attr; + __gnat_reset_attributes (&attr); + return __gnat_file_length_attr (-1, name, &attr); +} + +/* Create a temporary filename and put it in string pointed to by + TMP_FILENAME. */ + +void +__gnat_tmp_name (char *tmp_filename) +{ +#ifdef RTX + /* Variable used to create a series of unique names */ + static int counter = 0; + + /* RTX in RTSS mode does not support tempnam nor tmpnam so we emulate it */ + strcpy (tmp_filename, "c:\\WINDOWS\\Temp\\gnat-"); + sprintf (&tmp_filename[strlen (tmp_filename)], "%d\0", counter++); + +#elif defined (__MINGW32__) + { + char *pname; + char prefix[25]; + + /* tempnam tries 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-". */ + + sprintf (prefix, "gnat-%d-", (int)getpid()); + pname = (char *) _tempnam ("c:\\temp", prefix); + + /* if pname is NULL, the file was not created properly, the disk is full + or there is no more free temporary files */ + + if (pname == NULL) + *tmp_filename = '\0'; + + /* If pname start with a back slash and not path information it means that + the filename is valid for the current working directory. */ + + else if (pname[0] == '\\') + { + strcpy (tmp_filename, ".\\"); + strcat (tmp_filename, pname+1); + } + else + strcpy (tmp_filename, pname); + + free (pname); + } + +#elif defined (linux) || defined (__FreeBSD__) || defined (__NetBSD__) \ + || defined (__OpenBSD__) || defined(__GLIBC__) +#define MAX_SAFE_PATH 1000 + char *tmpdir = getenv ("TMPDIR"); + + /* If tmpdir is longer than MAX_SAFE_PATH, revert to default value to avoid + a buffer overflow. */ + if (tmpdir == NULL || strlen (tmpdir) > MAX_SAFE_PATH) + strcpy (tmp_filename, "/tmp/gnat-XXXXXX"); + else + sprintf (tmp_filename, "%s/gnat-XXXXXX", tmpdir); + + close (mkstemp(tmp_filename)); +#elif defined (__vxworks) && !(defined (__RTP__) || defined (VTHREADS)) + int index; + char * pos; + ushort_t t; + static ushort_t seed = 0; /* used to generate unique name */ + + /* generate unique name */ + strcpy (tmp_filename, "tmp"); + + /* fill up the name buffer from the last position */ + index = 5; + pos = tmp_filename + strlen (tmp_filename) + index; + *pos = '\0'; + + seed++; + for (t = seed; 0 <= --index; t >>= 3) + *--pos = '0' + (t & 07); +#else + tmpnam (tmp_filename); +#endif +} + +/* Open directory and returns a DIR pointer. */ + +DIR* __gnat_opendir (char *name) +{ +#if defined (RTX) + /* Not supported in RTX */ + + return NULL; + +#elif defined (__MINGW32__) + TCHAR wname[GNAT_MAX_PATH_LEN]; + + S2WSC (wname, name, GNAT_MAX_PATH_LEN); + return (DIR*)_topendir (wname); + +#else + return opendir (name); +#endif +} + +/* Read the next entry in a directory. The returned string points somewhere + in the buffer. */ + +char * +__gnat_readdir (DIR *dirp, char *buffer, int *len) +{ +#if defined (RTX) + /* Not supported in RTX */ + + return NULL; + +#elif defined (__MINGW32__) + struct _tdirent *dirent = _treaddir ((_TDIR*)dirp); + + if (dirent != NULL) + { + WS2SC (buffer, dirent->d_name, GNAT_MAX_PATH_LEN); + *len = strlen (buffer); + + return buffer; + } + else + return NULL; + +#elif defined (HAVE_READDIR_R) + /* If possible, try to use the thread-safe version. */ + if (readdir_r (dirp, buffer) != NULL) + { + *len = strlen (((struct dirent*) buffer)->d_name); + return ((struct dirent*) buffer)->d_name; + } + else + return NULL; + +#else + struct dirent *dirent = (struct dirent *) readdir (dirp); + + if (dirent != NULL) + { + strcpy (buffer, dirent->d_name); + *len = strlen (buffer); + return buffer; + } + else + return NULL; + +#endif +} + +/* Close a directory entry. */ + +int __gnat_closedir (DIR *dirp) +{ +#if defined (RTX) + /* Not supported in RTX */ + + return 0; + +#elif defined (__MINGW32__) + return _tclosedir ((_TDIR*)dirp); + +#else + return closedir (dirp); +#endif +} + +/* Returns 1 if readdir is thread safe, 0 otherwise. */ + +int +__gnat_readdir_is_thread_safe (void) +{ +#ifdef HAVE_READDIR_R + return 1; +#else + return 0; +#endif +} + +#if defined (_WIN32) && !defined (RTX) +/* Number of seconds between <Jan 1st 1601> and <Jan 1st 1970>. */ +static const unsigned long long w32_epoch_offset = 11644473600ULL; + +/* 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. */ + +static time_t +win32_filetime (HANDLE h) +{ + union + { + FILETIME ft_time; + unsigned long long ull_time; + } t_write; + + /* GetFileTime returns FILETIME data which are the number of 100 nanosecs + since <Jan 1st 1601>. This function must return the number of seconds + since <Jan 1st 1970>. */ + + if (GetFileTime (h, NULL, NULL, &t_write.ft_time)) + return (time_t) (t_write.ull_time / 10000000ULL - w32_epoch_offset); + return (time_t) 0; +} + +/* As above but starting from a FILETIME. */ +static void +f2t (const FILETIME *ft, time_t *t) +{ + union + { + FILETIME ft_time; + unsigned long long ull_time; + } t_write; + + t_write.ft_time = *ft; + *t = (time_t) (t_write.ull_time / 10000000ULL - w32_epoch_offset); +} +#endif + +/* Return a GNAT time stamp given a file name. */ + +OS_Time +__gnat_file_time_name_attr (char* name, struct file_attributes* attr) +{ + if (attr->timestamp == (OS_Time)-2) { +#if defined (_WIN32) && !defined (RTX) + BOOL res; + WIN32_FILE_ATTRIBUTE_DATA fad; + time_t ret = -1; + TCHAR wname[GNAT_MAX_PATH_LEN]; + S2WSC (wname, name, GNAT_MAX_PATH_LEN); + + if ((res = GetFileAttributesEx (wname, GetFileExInfoStandard, &fad))) + f2t (&fad.ftLastWriteTime, &ret); + attr->timestamp = (OS_Time) ret; +#else + __gnat_stat_to_attr (-1, name, attr); +#endif + } + return attr->timestamp; +} + +OS_Time +__gnat_file_time_name (char *name) +{ + struct file_attributes attr; + __gnat_reset_attributes (&attr); + return __gnat_file_time_name_attr (name, &attr); +} + +/* Return a GNAT time stamp given a file descriptor. */ + +OS_Time +__gnat_file_time_fd_attr (int fd, struct file_attributes* attr) +{ + if (attr->timestamp == (OS_Time)-2) { +#if defined (_WIN32) && !defined (RTX) + HANDLE h = (HANDLE) _get_osfhandle (fd); + time_t ret = win32_filetime (h); + attr->timestamp = (OS_Time) ret; + +#else + __gnat_stat_to_attr (fd, NULL, attr); +#endif + } + + return attr->timestamp; +} + +OS_Time +__gnat_file_time_fd (int fd) +{ + struct file_attributes attr; + __gnat_reset_attributes (&attr); + return __gnat_file_time_fd_attr (fd, &attr); +} + +/* Set the file time stamp. */ + +void +__gnat_set_file_time_name (char *name, time_t time_stamp) +{ +#if defined (__vxworks) + +/* Code to implement __gnat_set_file_time_name for these systems. */ + +#elif defined (_WIN32) && !defined (RTX) + union + { + FILETIME ft_time; + unsigned long long ull_time; + } t_write; + TCHAR wname[GNAT_MAX_PATH_LEN]; + + S2WSC (wname, name, GNAT_MAX_PATH_LEN); + + HANDLE h = CreateFile + (wname, GENERIC_WRITE, FILE_SHARE_WRITE, NULL, + OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, + NULL); + if (h == INVALID_HANDLE_VALUE) + return; + /* Add number of seconds between <Jan 1st 1601> and <Jan 1st 1970> */ + t_write.ull_time = ((unsigned long long)time_stamp + w32_epoch_offset); + /* Convert to 100 nanosecond units */ + t_write.ull_time *= 10000000ULL; + + SetFileTime(h, NULL, NULL, &t_write.ft_time); + CloseHandle (h); + return; + +#elif defined (VMS) + struct FAB fab; + struct NAM nam; + + struct + { + unsigned long long backup, create, expire, revise; + unsigned int uic; + union + { + unsigned short value; + struct + { + unsigned system : 4; + unsigned owner : 4; + unsigned group : 4; + unsigned world : 4; + } bits; + } prot; + } Fat = { 0, 0, 0, 0, 0, { 0 }}; + + ATRDEF atrlst[] + = { + { ATR$S_CREDATE, ATR$C_CREDATE, &Fat.create }, + { ATR$S_REVDATE, ATR$C_REVDATE, &Fat.revise }, + { ATR$S_EXPDATE, ATR$C_EXPDATE, &Fat.expire }, + { ATR$S_BAKDATE, ATR$C_BAKDATE, &Fat.backup }, + { ATR$S_FPRO, ATR$C_FPRO, &Fat.prot }, + { ATR$S_UIC, ATR$C_UIC, &Fat.uic }, + { 0, 0, 0} + }; + + FIBDEF fib; + struct dsc$descriptor_fib fibdsc = {sizeof (fib), (void *) &fib}; + + struct IOSB iosb; + + unsigned long long newtime; + unsigned long long revtime; + long status; + short chan; + + struct vstring file; + struct dsc$descriptor_s filedsc + = {NAM$C_MAXRSS, DSC$K_DTYPE_T, DSC$K_CLASS_S, (void *) file.string}; + struct vstring device; + struct dsc$descriptor_s devicedsc + = {NAM$C_MAXRSS, DSC$K_DTYPE_T, DSC$K_CLASS_S, (void *) device.string}; + struct vstring timev; + struct dsc$descriptor_s timedsc + = {NAM$C_MAXRSS, DSC$K_DTYPE_T, DSC$K_CLASS_S, (void *) timev.string}; + struct vstring result; + struct dsc$descriptor_s resultdsc + = {NAM$C_MAXRSS, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, (void *) result.string}; + + /* Convert parameter name (a file spec) to host file form. Note that this + is needed on VMS to prepare for subsequent calls to VMS RMS library + routines. Note that it would not work to call __gnat_to_host_dir_spec + as was done in a previous version, since this fails silently unless + the feature logical DECC$EFS_CHARSET is enabled, in which case a DNF + (directory not found) condition is signalled. */ + tryfile = (char *) __gnat_to_host_file_spec (name); + + /* Allocate and initialize a FAB and NAM structures. */ + fab = cc$rms_fab; + nam = cc$rms_nam; + + nam.nam$l_esa = file.string; + nam.nam$b_ess = NAM$C_MAXRSS; + nam.nam$l_rsa = result.string; + nam.nam$b_rss = NAM$C_MAXRSS; + fab.fab$l_fna = tryfile; + fab.fab$b_fns = strlen (tryfile); + fab.fab$l_nam = &nam; + + /* Validate filespec syntax and device existence. */ + status = SYS$PARSE (&fab, 0, 0); + if ((status & 1) != 1) + LIB$SIGNAL (status); + + file.string[nam.nam$b_esl] = 0; + + /* Find matching filespec. */ + status = SYS$SEARCH (&fab, 0, 0); + if ((status & 1) != 1) + LIB$SIGNAL (status); + + file.string[nam.nam$b_esl] = 0; + result.string[result.length=nam.nam$b_rsl] = 0; + + /* Get the device name and assign an IO channel. */ + strncpy (device.string, nam.nam$l_dev, nam.nam$b_dev); + devicedsc.dsc$w_length = nam.nam$b_dev; + chan = 0; + status = SYS$ASSIGN (&devicedsc, &chan, 0, 0, 0); + if ((status & 1) != 1) + LIB$SIGNAL (status); + + /* Initialize the FIB and fill in the directory id field. */ + memset (&fib, 0, sizeof (fib)); + fib.fib$w_did[0] = nam.nam$w_did[0]; + fib.fib$w_did[1] = nam.nam$w_did[1]; + fib.fib$w_did[2] = nam.nam$w_did[2]; + fib.fib$l_acctl = 0; + fib.fib$l_wcc = 0; + strcpy (file.string, (strrchr (result.string, ']') + 1)); + filedsc.dsc$w_length = strlen (file.string); + result.string[result.length = 0] = 0; + + /* Open and close the file to fill in the attributes. */ + status + = SYS$QIOW (0, chan, IO$_ACCESS|IO$M_ACCESS, &iosb, 0, 0, + &fibdsc, &filedsc, &result.length, &resultdsc, &atrlst, 0); + if ((status & 1) != 1) + LIB$SIGNAL (status); + if ((iosb.status & 1) != 1) + LIB$SIGNAL (iosb.status); + + result.string[result.length] = 0; + status = SYS$QIOW (0, chan, IO$_DEACCESS, &iosb, 0, 0, &fibdsc, 0, 0, 0, + &atrlst, 0); + if ((status & 1) != 1) + LIB$SIGNAL (status); + if ((iosb.status & 1) != 1) + LIB$SIGNAL (iosb.status); + + { + time_t t; + + /* Set creation time to requested time. */ + unix_time_to_vms (time_stamp, newtime); + + t = time ((time_t) 0); + + /* Set revision time to now in local time. */ + unix_time_to_vms (t, revtime); + } + + /* Reopen the file, modify the times and then close. */ + fib.fib$l_acctl = FIB$M_WRITE; + status + = SYS$QIOW (0, chan, IO$_ACCESS|IO$M_ACCESS, &iosb, 0, 0, + &fibdsc, &filedsc, &result.length, &resultdsc, &atrlst, 0); + if ((status & 1) != 1) + LIB$SIGNAL (status); + if ((iosb.status & 1) != 1) + LIB$SIGNAL (iosb.status); + + Fat.create = newtime; + Fat.revise = revtime; + + status = SYS$QIOW (0, chan, IO$_DEACCESS, &iosb, 0, 0, + &fibdsc, 0, 0, 0, &atrlst, 0); + if ((status & 1) != 1) + LIB$SIGNAL (status); + if ((iosb.status & 1) != 1) + LIB$SIGNAL (iosb.status); + + /* Deassign the channel and exit. */ + status = SYS$DASSGN (chan); + if ((status & 1) != 1) + LIB$SIGNAL (status); +#else + struct utimbuf utimbuf; + time_t t; + + /* Set modification time to requested time. */ + utimbuf.modtime = time_stamp; + + /* Set access time to now in local time. */ + t = time ((time_t) 0); + utimbuf.actime = mktime (localtime (&t)); + + utime (name, &utimbuf); +#endif +} + +/* Get the list of installed standard libraries from the + HKEY_LOCAL_MACHINE\SOFTWARE\Ada Core Technologies\GNAT\Standard Libraries + key. */ + +char * +__gnat_get_libraries_from_registry (void) +{ + char *result = (char *) xmalloc (1); + + result[0] = '\0'; + +#if defined (_WIN32) && ! defined (__vxworks) && ! defined (IS_CROSS) \ + && ! defined (RTX) + + 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 = RegEnumValueA (reg_key, index, name, &name_size, 0, + &type, (LPBYTE)value, &value_size); + + if (res == ERROR_SUCCESS && type == REG_SZ) + { + char *old_result = result; + + result = (char *) xmalloc (strlen (old_result) + value_size + 2); + strcpy (result, old_result); + strcat (result, value); + strcat (result, ";"); + free (old_result); + } + } + + /* Remove the trailing ";". */ + if (result[0] != 0) + result[strlen (result) - 1] = 0; + +#endif + return result; +} + +int +__gnat_stat (char *name, GNAT_STRUCT_STAT *statbuf) +{ +#ifdef __MINGW32__ + WIN32_FILE_ATTRIBUTE_DATA fad; + TCHAR wname [GNAT_MAX_PATH_LEN + 2]; + int name_len; + BOOL res; + DWORD error; + + S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); + name_len = _tcslen (wname); + + if (name_len > GNAT_MAX_PATH_LEN) + return -1; + + ZeroMemory (statbuf, sizeof(GNAT_STRUCT_STAT)); + + res = GetFileAttributesEx (wname, GetFileExInfoStandard, &fad); + + if (res == FALSE) { + error = GetLastError(); + + /* Check file existence using GetFileAttributes() which does not fail on + special Windows files like con:, aux:, nul: etc... */ + + if (GetFileAttributes(wname) != INVALID_FILE_ATTRIBUTES) { + /* Just pretend that it is a regular and readable file */ + statbuf->st_mode = S_IFREG | S_IREAD | S_IWRITE; + return 0; + } + + switch (error) { + case ERROR_ACCESS_DENIED: + case ERROR_SHARING_VIOLATION: + case ERROR_LOCK_VIOLATION: + case ERROR_SHARING_BUFFER_EXCEEDED: + return EACCES; + case ERROR_BUFFER_OVERFLOW: + return ENAMETOOLONG; + case ERROR_NOT_ENOUGH_MEMORY: + return ENOMEM; + default: + return ENOENT; + } + } + + f2t (&fad.ftCreationTime, &statbuf->st_ctime); + f2t (&fad.ftLastWriteTime, &statbuf->st_mtime); + f2t (&fad.ftLastAccessTime, &statbuf->st_atime); + + statbuf->st_size = (off_t)fad.nFileSizeLow; + + /* We do not have the S_IEXEC attribute, but this is not used on GNAT. */ + statbuf->st_mode = S_IREAD; + + if (fad.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) + statbuf->st_mode |= S_IFDIR; + else + statbuf->st_mode |= S_IFREG; + + if (!(fad.dwFileAttributes & FILE_ATTRIBUTE_READONLY)) + statbuf->st_mode |= S_IWRITE; + + return 0; + +#else + return GNAT_STAT (name, statbuf); +#endif +} + +/************************************************************************* + ** Check whether a file exists + *************************************************************************/ + +int +__gnat_file_exists_attr (char* name, struct file_attributes* attr) +{ + if (attr->exists == ATTR_UNSET) { + __gnat_stat_to_attr (-1, name, attr); + } + + return attr->exists; +} + +int +__gnat_file_exists (char *name) +{ + struct file_attributes attr; + __gnat_reset_attributes (&attr); + return __gnat_file_exists_attr (name, &attr); +} + +/********************************************************************** + ** Whether name is an absolute path + **********************************************************************/ + +int +__gnat_is_absolute_path (char *name, int length) +{ +#ifdef __vxworks + /* On VxWorks systems, an absolute path can be represented (depending on + the host platform) as either /dir/file, or device:/dir/file, or + device:drive_letter:/dir/file. */ + + int index; + + if (name[0] == '/') + return 1; + + for (index = 0; index < length; index++) + { + if (name[index] == ':' && + ((name[index + 1] == '/') || + (isalpha (name[index + 1]) && index + 2 <= length && + name[index + 2] == '/'))) + return 1; + + else if (name[index] == '/') + return 0; + } + return 0; +#else + return (length != 0) && + (*name == '/' || *name == DIR_SEPARATOR +#if defined (WINNT) + || (length > 1 && ISALPHA (name[0]) && name[1] == ':') +#endif + ); +#endif +} + +int +__gnat_is_regular_file_attr (char* name, struct file_attributes* attr) +{ + if (attr->regular == ATTR_UNSET) { + __gnat_stat_to_attr (-1, name, attr); + } + + return attr->regular; +} + +int +__gnat_is_regular_file (char *name) +{ + struct file_attributes attr; + __gnat_reset_attributes (&attr); + return __gnat_is_regular_file_attr (name, &attr); +} + +int +__gnat_is_directory_attr (char* name, struct file_attributes* attr) +{ + if (attr->directory == ATTR_UNSET) { + __gnat_stat_to_attr (-1, name, attr); + } + + return attr->directory; +} + +int +__gnat_is_directory (char *name) +{ + struct file_attributes attr; + __gnat_reset_attributes (&attr); + return __gnat_is_directory_attr (name, &attr); +} + +#if defined (_WIN32) && !defined (RTX) + +/* Returns the same constant as GetDriveType but takes a pathname as + argument. */ + +static UINT +GetDriveTypeFromPath (TCHAR *wfullpath) +{ + TCHAR wdrv[MAX_PATH]; + TCHAR wpath[MAX_PATH]; + TCHAR wfilename[MAX_PATH]; + TCHAR wext[MAX_PATH]; + + _tsplitpath (wfullpath, wdrv, wpath, wfilename, wext); + + if (_tcslen (wdrv) != 0) + { + /* we have a drive specified. */ + _tcscat (wdrv, _T("\\")); + return GetDriveType (wdrv); + } + else + { + /* No drive specified. */ + + /* Is this a relative path, if so get current drive type. */ + if (wpath[0] != _T('\\') || + (_tcslen (wpath) > 2 && wpath[0] == _T('\\') && wpath[1] != _T('\\'))) + return GetDriveType (NULL); + + UINT result = GetDriveType (wpath); + + /* Cannot guess the drive type, is this \\.\ ? */ + + if (result == DRIVE_NO_ROOT_DIR && + _tcslen (wpath) >= 4 && wpath[0] == _T('\\') && wpath[1] == _T('\\') + && wpath[2] == _T('.') && wpath[3] == _T('\\')) + { + if (_tcslen (wpath) == 4) + _tcscat (wpath, wfilename); + + LPTSTR p = &wpath[4]; + LPTSTR b = _tcschr (p, _T('\\')); + + if (b != NULL) + { /* logical drive \\.\c\dir\file */ + *b++ = _T(':'); + *b++ = _T('\\'); + *b = _T('\0'); + } + else + _tcscat (p, _T(":\\")); + + return GetDriveType (p); + } + + return result; + } +} + +/* This MingW section contains code to work with ACL. */ +static int +__gnat_check_OWNER_ACL +(TCHAR *wname, + DWORD CheckAccessDesired, + GENERIC_MAPPING CheckGenericMapping) +{ + DWORD dwAccessDesired, dwAccessAllowed; + PRIVILEGE_SET PrivilegeSet; + DWORD dwPrivSetSize = sizeof (PRIVILEGE_SET); + BOOL fAccessGranted = FALSE; + HANDLE hToken = NULL; + DWORD nLength = 0; + SECURITY_DESCRIPTOR* pSD = NULL; + + GetFileSecurity + (wname, OWNER_SECURITY_INFORMATION | + GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION, + NULL, 0, &nLength); + + if ((pSD = (SECURITY_DESCRIPTOR *) HeapAlloc + (GetProcessHeap (), HEAP_ZERO_MEMORY, nLength)) == NULL) + return 0; + + /* Obtain the security descriptor. */ + + if (!GetFileSecurity + (wname, OWNER_SECURITY_INFORMATION | + GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION, + pSD, nLength, &nLength)) + goto error; + + if (!ImpersonateSelf (SecurityImpersonation)) + goto error; + + if (!OpenThreadToken + (GetCurrentThread(), TOKEN_DUPLICATE | TOKEN_QUERY, FALSE, &hToken)) + goto error; + + /* Undoes the effect of ImpersonateSelf. */ + + RevertToSelf (); + + /* We want to test for write permissions. */ + + dwAccessDesired = CheckAccessDesired; + + MapGenericMask (&dwAccessDesired, &CheckGenericMapping); + + if (!AccessCheck + (pSD , /* security descriptor to check */ + hToken, /* impersonation token */ + dwAccessDesired, /* requested access rights */ + &CheckGenericMapping, /* pointer to GENERIC_MAPPING */ + &PrivilegeSet, /* receives privileges used in check */ + &dwPrivSetSize, /* size of PrivilegeSet buffer */ + &dwAccessAllowed, /* receives mask of allowed access rights */ + &fAccessGranted)) + goto error; + + CloseHandle (hToken); + HeapFree (GetProcessHeap (), 0, pSD); + return fAccessGranted; + + error: + if (hToken) + CloseHandle (hToken); + HeapFree (GetProcessHeap (), 0, pSD); + return 0; +} + +static void +__gnat_set_OWNER_ACL +(TCHAR *wname, + DWORD AccessMode, + DWORD AccessPermissions) +{ + PACL pOldDACL = NULL; + PACL pNewDACL = NULL; + PSECURITY_DESCRIPTOR pSD = NULL; + EXPLICIT_ACCESS ea; + TCHAR username [100]; + DWORD unsize = 100; + + /* Get current user, he will act as the owner */ + + if (!GetUserName (username, &unsize)) + return; + + if (GetNamedSecurityInfo + (wname, + SE_FILE_OBJECT, + DACL_SECURITY_INFORMATION, + NULL, NULL, &pOldDACL, NULL, &pSD) != ERROR_SUCCESS) + return; + + BuildExplicitAccessWithName + (&ea, username, AccessPermissions, (ACCESS_MODE) AccessMode, NO_INHERITANCE); + + if (AccessMode == SET_ACCESS) + { + /* SET_ACCESS, we want to set an explicte set of permissions, do not + merge with current DACL. */ + if (SetEntriesInAcl (1, &ea, NULL, &pNewDACL) != ERROR_SUCCESS) + return; + } + else + if (SetEntriesInAcl (1, &ea, pOldDACL, &pNewDACL) != ERROR_SUCCESS) + return; + + if (SetNamedSecurityInfo + (wname, SE_FILE_OBJECT, + DACL_SECURITY_INFORMATION, NULL, NULL, pNewDACL, NULL) != ERROR_SUCCESS) + return; + + LocalFree (pSD); + LocalFree (pNewDACL); +} + +/* Check if it is possible to use ACL for wname, the file must not be on a + network drive. */ + +static int +__gnat_can_use_acl (TCHAR *wname) +{ + return __gnat_use_acl && GetDriveTypeFromPath (wname) != DRIVE_REMOTE; +} + +#endif /* defined (_WIN32) && !defined (RTX) */ + +int +__gnat_is_readable_file_attr (char* name, struct file_attributes* attr) +{ + if (attr->readable == ATTR_UNSET) { +#if defined (_WIN32) && !defined (RTX) + TCHAR wname [GNAT_MAX_PATH_LEN + 2]; + GENERIC_MAPPING GenericMapping; + + S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); + + if (__gnat_can_use_acl (wname)) + { + ZeroMemory (&GenericMapping, sizeof (GENERIC_MAPPING)); + GenericMapping.GenericRead = GENERIC_READ; + attr->readable = + __gnat_check_OWNER_ACL (wname, FILE_READ_DATA, GenericMapping); + } + else + attr->readable = GetFileAttributes (wname) != INVALID_FILE_ATTRIBUTES; +#else + __gnat_stat_to_attr (-1, name, attr); +#endif + } + + return attr->readable; +} + +int +__gnat_is_readable_file (char *name) +{ + struct file_attributes attr; + __gnat_reset_attributes (&attr); + return __gnat_is_readable_file_attr (name, &attr); +} + +int +__gnat_is_writable_file_attr (char* name, struct file_attributes* attr) +{ + if (attr->writable == ATTR_UNSET) { +#if defined (_WIN32) && !defined (RTX) + TCHAR wname [GNAT_MAX_PATH_LEN + 2]; + GENERIC_MAPPING GenericMapping; + + S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); + + if (__gnat_can_use_acl (wname)) + { + ZeroMemory (&GenericMapping, sizeof (GENERIC_MAPPING)); + GenericMapping.GenericWrite = GENERIC_WRITE; + + attr->writable = __gnat_check_OWNER_ACL + (wname, FILE_WRITE_DATA | FILE_APPEND_DATA, GenericMapping) + && !(GetFileAttributes (wname) & FILE_ATTRIBUTE_READONLY); + } + else + attr->writable = !(GetFileAttributes (wname) & FILE_ATTRIBUTE_READONLY); + +#else + __gnat_stat_to_attr (-1, name, attr); +#endif + } + + return attr->writable; +} + +int +__gnat_is_writable_file (char *name) +{ + struct file_attributes attr; + __gnat_reset_attributes (&attr); + return __gnat_is_writable_file_attr (name, &attr); +} + +int +__gnat_is_executable_file_attr (char* name, struct file_attributes* attr) +{ + if (attr->executable == ATTR_UNSET) { +#if defined (_WIN32) && !defined (RTX) + TCHAR wname [GNAT_MAX_PATH_LEN + 2]; + GENERIC_MAPPING GenericMapping; + + S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); + + if (__gnat_can_use_acl (wname)) + { + ZeroMemory (&GenericMapping, sizeof (GENERIC_MAPPING)); + GenericMapping.GenericExecute = GENERIC_EXECUTE; + + attr->executable = + __gnat_check_OWNER_ACL (wname, FILE_EXECUTE, GenericMapping); + } + else + { + TCHAR *l, *last = _tcsstr(wname, _T(".exe")); + + /* look for last .exe */ + if (last) + while ((l = _tcsstr(last+1, _T(".exe")))) last = l; + + attr->executable = GetFileAttributes (wname) != INVALID_FILE_ATTRIBUTES + && (last - wname) == (int) (_tcslen (wname) - 4); + } +#else + __gnat_stat_to_attr (-1, name, attr); +#endif + } + + return attr->executable; +} + +int +__gnat_is_executable_file (char *name) +{ + struct file_attributes attr; + __gnat_reset_attributes (&attr); + return __gnat_is_executable_file_attr (name, &attr); +} + +void +__gnat_set_writable (char *name) +{ +#if defined (_WIN32) && !defined (RTX) + TCHAR wname [GNAT_MAX_PATH_LEN + 2]; + + S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); + + if (__gnat_can_use_acl (wname)) + __gnat_set_OWNER_ACL (wname, GRANT_ACCESS, FILE_GENERIC_WRITE); + + SetFileAttributes + (wname, GetFileAttributes (wname) & ~FILE_ATTRIBUTE_READONLY); +#elif ! (defined (__vxworks) && _WRS_VXWORKS_MAJOR < 6) && \ + ! defined(__nucleus__) + GNAT_STRUCT_STAT statbuf; + + if (GNAT_STAT (name, &statbuf) == 0) + { + statbuf.st_mode = statbuf.st_mode | S_IWUSR; + chmod (name, statbuf.st_mode); + } +#endif +} + +void +__gnat_set_executable (char *name) +{ +#if defined (_WIN32) && !defined (RTX) + TCHAR wname [GNAT_MAX_PATH_LEN + 2]; + + S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); + + if (__gnat_can_use_acl (wname)) + __gnat_set_OWNER_ACL (wname, GRANT_ACCESS, FILE_GENERIC_EXECUTE); + +#elif ! (defined (__vxworks) && _WRS_VXWORKS_MAJOR < 6) && \ + ! defined(__nucleus__) + GNAT_STRUCT_STAT statbuf; + + if (GNAT_STAT (name, &statbuf) == 0) + { + statbuf.st_mode = statbuf.st_mode | S_IXUSR; + chmod (name, statbuf.st_mode); + } +#endif +} + +void +__gnat_set_non_writable (char *name) +{ +#if defined (_WIN32) && !defined (RTX) + TCHAR wname [GNAT_MAX_PATH_LEN + 2]; + + S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); + + if (__gnat_can_use_acl (wname)) + __gnat_set_OWNER_ACL + (wname, DENY_ACCESS, + FILE_WRITE_DATA | FILE_APPEND_DATA | + FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES); + + SetFileAttributes + (wname, GetFileAttributes (wname) | FILE_ATTRIBUTE_READONLY); +#elif ! (defined (__vxworks) && _WRS_VXWORKS_MAJOR < 6) && \ + ! defined(__nucleus__) + GNAT_STRUCT_STAT statbuf; + + if (GNAT_STAT (name, &statbuf) == 0) + { + statbuf.st_mode = statbuf.st_mode & 07577; + chmod (name, statbuf.st_mode); + } +#endif +} + +void +__gnat_set_readable (char *name) +{ +#if defined (_WIN32) && !defined (RTX) + TCHAR wname [GNAT_MAX_PATH_LEN + 2]; + + S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); + + if (__gnat_can_use_acl (wname)) + __gnat_set_OWNER_ACL (wname, GRANT_ACCESS, FILE_GENERIC_READ); + +#elif ! (defined (__vxworks) && _WRS_VXWORKS_MAJOR < 6) && \ + ! defined(__nucleus__) + GNAT_STRUCT_STAT statbuf; + + if (GNAT_STAT (name, &statbuf) == 0) + { + chmod (name, statbuf.st_mode | S_IREAD); + } +#endif +} + +void +__gnat_set_non_readable (char *name) +{ +#if defined (_WIN32) && !defined (RTX) + TCHAR wname [GNAT_MAX_PATH_LEN + 2]; + + S2WSC (wname, name, GNAT_MAX_PATH_LEN + 2); + + if (__gnat_can_use_acl (wname)) + __gnat_set_OWNER_ACL (wname, DENY_ACCESS, FILE_GENERIC_READ); + +#elif ! (defined (__vxworks) && _WRS_VXWORKS_MAJOR < 6) && \ + ! defined(__nucleus__) + GNAT_STRUCT_STAT statbuf; + + if (GNAT_STAT (name, &statbuf) == 0) + { + chmod (name, statbuf.st_mode & (~S_IREAD)); + } +#endif +} + +int +__gnat_is_symbolic_link_attr (char* name ATTRIBUTE_UNUSED, + struct file_attributes* attr) +{ + if (attr->symbolic_link == ATTR_UNSET) { +#if defined (__vxworks) || defined (__nucleus__) + attr->symbolic_link = 0; + +#elif defined (_AIX) || defined (__APPLE__) || defined (__unix__) + int ret; + GNAT_STRUCT_STAT statbuf; + ret = GNAT_LSTAT (name, &statbuf); + attr->symbolic_link = (!ret && S_ISLNK (statbuf.st_mode)); +#else + attr->symbolic_link = 0; +#endif + } + return attr->symbolic_link; +} + +int +__gnat_is_symbolic_link (char *name ATTRIBUTE_UNUSED) +{ + struct file_attributes attr; + __gnat_reset_attributes (&attr); + return __gnat_is_symbolic_link_attr (name, &attr); + +} + +#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 +__gnat_portable_spawn (char *args[]) +{ + int status = 0; + int finished ATTRIBUTE_UNUSED; + int pid ATTRIBUTE_UNUSED; + +#if defined (__vxworks) || defined(__nucleus__) || defined(RTX) + return -1; + +#elif defined (_WIN32) + /* args[0] must be quotes as it could contain a full pathname with spaces */ + char *args_0 = args[0]; + args[0] = (char *)xmalloc (strlen (args_0) + 3); + strcpy (args[0], "\""); + strcat (args[0], args_0); + strcat (args[0], "\""); + + status = spawnvp (P_WAIT, args_0, (char* const*)args); + + /* restore previous value */ + free (args[0]); + args[0] = (char *)args_0; + + if (status < 0) + return -1; + else + return status; + +#else + + pid = fork (); + if (pid < 0) + return -1; + + if (pid == 0) + { + /* The child. */ + if (execv (args[0], MAYBE_TO_PTR32 (args)) != 0) +#if defined (VMS) + return -1; /* execv is in parent context on VMS. */ +#else + _exit (1); +#endif + } + + /* The parent. */ + finished = waitpid (pid, &status, 0); + + if (finished != pid || WIFEXITED (status) == 0) + return -1; + + return WEXITSTATUS (status); +#endif + + return 0; +} + +/* Create a copy of the given file descriptor. + Return -1 if an error occurred. */ + +int +__gnat_dup (int oldfd) +{ +#if defined (__vxworks) && !defined (__RTP__) + /* Not supported on VxWorks 5.x, but supported on VxWorks 6.0 when using + RTPs. */ + return -1; +#else + return dup (oldfd); +#endif +} + +/* Make newfd be the copy of oldfd, closing newfd first if necessary. + Return -1 if an error occurred. */ + +int +__gnat_dup2 (int oldfd, int newfd) +{ +#if defined (__vxworks) && !defined (__RTP__) + /* Not supported on VxWorks 5.x, but supported on VxWorks 6.0 when using + RTPs. */ + return -1; +#elif defined (_WIN32) + /* Special case when oldfd and newfd are identical and are the standard + input, output or error as this makes Windows XP hangs. Note that we + do that only for standard file descriptors that are known to be valid. */ + if (oldfd == newfd && newfd >= 0 && newfd <= 2) + return newfd; + else + return dup2 (oldfd, newfd); +#else + return dup2 (oldfd, newfd); +#endif +} + +int +__gnat_number_of_cpus (void) +{ + int cores = 1; + +#if defined (linux) || defined (sun) || defined (AIX) || defined (__APPLE__) + cores = (int) sysconf (_SC_NPROCESSORS_ONLN); + +#elif defined (__hpux__) + struct pst_dynamic psd; + if (pstat_getdynamic (&psd, sizeof (psd), 1, 0) != -1) + cores = (int) psd.psd_proc_cnt; + +#elif defined (_WIN32) + SYSTEM_INFO sysinfo; + GetSystemInfo (&sysinfo); + cores = (int) sysinfo.dwNumberOfProcessors; + +#elif defined (VMS) + int code = SYI$_ACTIVECPU_CNT; + unsigned int res; + int status; + + status = LIB$GETSYI (&code, &res); + if ((status & 1) != 0) + cores = res; + +#elif defined (_WRS_CONFIG_SMP) + unsigned int vxCpuConfiguredGet (void); + + cores = vxCpuConfiguredGet (); + +#endif + + return cores; +} + +/* WIN32 code to implement a wait call that wait for any child process. */ + +#if defined (_WIN32) && !defined (RTX) + +/* Synchronization code, to be thread safe. */ + +#ifdef CERT + +/* For the Cert run times on native Windows we use dummy functions + for locking and unlocking tasks since we do not support multiple + threads on this configuration (Cert run time on native Windows). */ + +void dummy (void) {} + +void (*Lock_Task) () = &dummy; +void (*Unlock_Task) () = &dummy; + +#else + +#define Lock_Task system__soft_links__lock_task +extern void (*Lock_Task) (void); + +#define Unlock_Task system__soft_links__unlock_task +extern void (*Unlock_Task) (void); + +#endif + +static HANDLE *HANDLES_LIST = NULL; +static int *PID_LIST = NULL, plist_length = 0, plist_max_length = 0; + +static void +add_handle (HANDLE h, int pid) +{ + + /* -------------------- critical section -------------------- */ + (*Lock_Task) (); + + if (plist_length == plist_max_length) + { + plist_max_length += 1000; + HANDLES_LIST = + (void **) xrealloc (HANDLES_LIST, sizeof (HANDLE) * plist_max_length); + PID_LIST = + (int *) xrealloc (PID_LIST, sizeof (int) * plist_max_length); + } + + HANDLES_LIST[plist_length] = h; + PID_LIST[plist_length] = pid; + ++plist_length; + + (*Unlock_Task) (); + /* -------------------- critical section -------------------- */ +} + +void +__gnat_win32_remove_handle (HANDLE h, int pid) +{ + int j; + + /* -------------------- critical section -------------------- */ + (*Lock_Task) (); + + for (j = 0; j < plist_length; j++) + { + if ((HANDLES_LIST[j] == h) || (PID_LIST[j] == pid)) + { + CloseHandle (h); + --plist_length; + HANDLES_LIST[j] = HANDLES_LIST[plist_length]; + PID_LIST[j] = PID_LIST[plist_length]; + break; + } + } + + (*Unlock_Task) (); + /* -------------------- critical section -------------------- */ +} + +static void +win32_no_block_spawn (char *command, char *args[], HANDLE *h, int *pid) +{ + BOOL result; + STARTUPINFO SI; + PROCESS_INFORMATION PI; + SECURITY_ATTRIBUTES SA; + int csize = 1; + char *full_command; + int k; + + /* compute the total command line length */ + k = 0; + while (args[k]) + { + csize += strlen (args[k]) + 1; + k++; + } + + full_command = (char *) xmalloc (csize); + + /* 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++; + } + + { + int wsize = csize * 2; + TCHAR *wcommand = (TCHAR *) xmalloc (wsize); + + S2WSC (wcommand, full_command, wsize); + + free (full_command); + + result = CreateProcess + (NULL, wcommand, &SA, NULL, TRUE, + GetPriorityClass (GetCurrentProcess()), NULL, NULL, &SI, &PI); + + free (wcommand); + } + + if (result == TRUE) + { + CloseHandle (PI.hThread); + *h = PI.hProcess; + *pid = PI.dwProcessId; + } + else + { + *h = NULL; + *pid = 0; + } +} + +static int +win32_wait (int *status) +{ + DWORD exitcode, pid; + HANDLE *hl; + HANDLE h; + DWORD res; + int k; + int hl_len; + + if (plist_length == 0) + { + errno = ECHILD; + return -1; + } + + k = 0; + + /* -------------------- critical section -------------------- */ + (*Lock_Task) (); + + hl_len = plist_length; + + hl = (HANDLE *) xmalloc (sizeof (HANDLE) * hl_len); + + memmove (hl, HANDLES_LIST, sizeof (HANDLE) * hl_len); + + (*Unlock_Task) (); + /* -------------------- critical section -------------------- */ + + res = WaitForMultipleObjects (hl_len, hl, FALSE, INFINITE); + h = hl[res - WAIT_OBJECT_0]; + + GetExitCodeProcess (h, &exitcode); + pid = PID_LIST [res - WAIT_OBJECT_0]; + __gnat_win32_remove_handle (h, -1); + + free (hl); + + *status = (int) exitcode; + return (int) pid; +} + +#endif + +int +__gnat_portable_no_block_spawn (char *args[]) +{ + +#if defined (__vxworks) || defined (__nucleus__) || defined (RTX) + return -1; + +#elif defined (_WIN32) + + HANDLE h = NULL; + int pid; + + win32_no_block_spawn (args[0], args, &h, &pid); + if (h != NULL) + { + add_handle (h, pid); + return pid; + } + else + return -1; + +#else + + int pid = fork (); + + if (pid == 0) + { + /* The child. */ + if (execv (args[0], MAYBE_TO_PTR32 (args)) != 0) +#if defined (VMS) + return -1; /* execv is in parent context on VMS. */ +#else + _exit (1); +#endif + } + + return pid; + + #endif +} + +int +__gnat_portable_wait (int *process_status) +{ + int status = 0; + int pid = 0; + +#if defined (__vxworks) || defined (__nucleus__) || defined (RTX) + /* Not sure what to do here, so do nothing but return zero. */ + +#elif defined (_WIN32) + + pid = win32_wait (&status); + +#else + + pid = waitpid (-1, &status, 0); + status = status & 0xffff; +#endif + + *process_status = status; + return pid; +} + +void +__gnat_os_exit (int status) +{ + exit (status); +} + +/* Locate file on path, that matches a predicate */ + +char * +__gnat_locate_file_with_predicate + (char *file_name, char *path_val, int (*predicate)(char*)) +{ + char *ptr; + char *file_path = (char *) alloca (strlen (file_name) + 1); + int absolute; + + /* Return immediately if file_name is empty */ + + if (*file_name == '\0') + return 0; + + /* Remove quotes around file_name if present */ + + ptr = file_name; + if (*ptr == '"') + ptr++; + + strcpy (file_path, ptr); + + ptr = file_path + strlen (file_path) - 1; + + if (*ptr == '"') + *ptr = '\0'; + + /* Handle absolute pathnames. */ + + absolute = __gnat_is_absolute_path (file_path, strlen (file_name)); + + if (absolute) + { + if (predicate (file_path)) + return xstrdup (file_path); + + return 0; + } + + /* If file_name include directory separator(s), try it first as + a path name relative to the current directory */ + for (ptr = file_name; *ptr && *ptr != '/' && *ptr != DIR_SEPARATOR; ptr++) + ; + + if (*ptr != 0) + { + if (predicate (file_name)) + return xstrdup (file_name); + } + + if (path_val == 0) + return 0; + + { + /* The result has to be smaller than path_val + file_name. */ + char *file_path = + (char *) alloca (strlen (path_val) + strlen (file_name) + 2); + + for (;;) + { + /* Skip the starting quote */ + + if (*path_val == '"') + path_val++; + + for (ptr = file_path; *path_val && *path_val != PATH_SEPARATOR; ) + *ptr++ = *path_val++; + + /* If directory is empty, it is the current directory*/ + + if (ptr == file_path) + { + *ptr = '.'; + } + else + ptr--; + + /* Skip the ending quote */ + + if (*ptr == '"') + ptr--; + + if (*ptr != '/' && *ptr != DIR_SEPARATOR) + *++ptr = DIR_SEPARATOR; + + strcpy (++ptr, file_name); + + if (predicate (file_path)) + return xstrdup (file_path); + + if (*path_val == 0) + return 0; + + /* Skip path separator */ + + path_val++; + } + } + + return 0; +} + +/* Locate an executable file, give a Path value. */ + +char * +__gnat_locate_executable_file (char *file_name, char *path_val) +{ + return __gnat_locate_file_with_predicate + (file_name, path_val, &__gnat_is_executable_file); +} + +/* Locate a regular file, give a Path value. */ + +char * +__gnat_locate_regular_file (char *file_name, char *path_val) +{ + return __gnat_locate_file_with_predicate + (file_name, path_val, &__gnat_is_regular_file); +} + +/* 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 * +__gnat_locate_exec (char *exec_name, char *path_val) +{ + char *ptr; + if (!strstr (exec_name, HOST_EXECUTABLE_SUFFIX)) + { + char *full_exec_name = + (char *) alloca + (strlen (exec_name) + strlen (HOST_EXECUTABLE_SUFFIX) + 1); + + strcpy (full_exec_name, exec_name); + strcat (full_exec_name, HOST_EXECUTABLE_SUFFIX); + ptr = __gnat_locate_executable_file (full_exec_name, path_val); + + if (ptr == 0) + return __gnat_locate_executable_file (exec_name, path_val); + return ptr; + } + else + return __gnat_locate_executable_file (exec_name, path_val); +} + +/* Locate an executable using the Systems default PATH. */ + +char * +__gnat_locate_exec_on_path (char *exec_name) +{ + char *apath_val; + +#if defined (_WIN32) && !defined (RTX) + TCHAR *wpath_val = _tgetenv (_T("PATH")); + TCHAR *wapath_val; + /* In Win32 systems we expand the PATH as for XP environment + variables are not automatically expanded. We also prepend the + ".;" to the path to match normal NT path search semantics */ + + #define EXPAND_BUFFER_SIZE 32767 + + wapath_val = (TCHAR *) alloca (EXPAND_BUFFER_SIZE); + + wapath_val [0] = '.'; + wapath_val [1] = ';'; + + DWORD res = ExpandEnvironmentStrings + (wpath_val, &wapath_val[2], EXPAND_BUFFER_SIZE - 2); + + if (!res) wapath_val [0] = _T('\0'); + + apath_val = (char *) alloca (EXPAND_BUFFER_SIZE); + + WS2SC (apath_val, wapath_val, EXPAND_BUFFER_SIZE); + return __gnat_locate_exec (exec_name, apath_val); + +#else + +#ifdef VMS + char *path_val = "/VAXC$PATH"; +#else + char *path_val = getenv ("PATH"); +#endif + if (path_val == NULL) return NULL; + apath_val = (char *) alloca (strlen (path_val) + 1); + strcpy (apath_val, path_val); + return __gnat_locate_exec (exec_name, apath_val); +#endif +} + +#ifdef VMS + +/* These functions are used to translate to and from VMS and Unix syntax + file, directory and path specifications. */ + +#define MAXPATH 256 +#define MAXNAMES 256 +#define NEW_CANONICAL_FILELIST_INCREMENT 64 + +static char new_canonical_dirspec [MAXPATH]; +static char new_canonical_filespec [MAXPATH]; +static char new_canonical_pathspec [MAXNAMES*MAXPATH]; +static unsigned new_canonical_filelist_index; +static unsigned new_canonical_filelist_in_use; +static unsigned new_canonical_filelist_allocated; +static char **new_canonical_filelist; +static char new_host_pathspec [MAXNAMES*MAXPATH]; +static char new_host_dirspec [MAXPATH]; +static char new_host_filespec [MAXPATH]; + +/* Routine is called repeatedly by decc$from_vms via + __gnat_to_canonical_file_list_init until it returns 0 or the expansion + runs out. */ + +static int +wildcard_translate_unix (char *name) +{ + char *ver; + char buff [MAXPATH]; + + strncpy (buff, name, MAXPATH); + buff [MAXPATH - 1] = (char) 0; + 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 **) xrealloc + (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 +__gnat_to_canonical_file_list_init (char *filespec, int onlydirs) +{ + int len; + char buff [MAXPATH]; + + len = strlen (filespec); + strncpy (buff, filespec, MAXPATH); + + /* Only look for directories */ + if (onlydirs && !strstr (&buff [len-5], "*.dir")) + strncat (buff, "*.dir", MAXPATH); + + buff [MAXPATH - 1] = (char) 0; + + decc$from_vms (buff, wildcard_translate_unix, 1); + + /* Remove the .dir extension. */ + if (onlydirs) + { + int i; + char *ext; + + for (i = 0; i < new_canonical_filelist_in_use; i++) + { + ext = strstr (new_canonical_filelist[i], ".dir"); + if (ext) + *ext = 0; + } + } + + return new_canonical_filelist_in_use; +} + +/* Return the next filespec in the list. */ + +char * +__gnat_to_canonical_file_list_next () +{ + return new_canonical_filelist[new_canonical_filelist_index++]; +} + +/* Free storage used in the wildcard expansion. */ + +void +__gnat_to_canonical_file_list_free () +{ + int i; + + for (i = 0; i < new_canonical_filelist_in_use; i++) + free (new_canonical_filelist[i]); + + free (new_canonical_filelist); + + new_canonical_filelist_in_use = 0; + new_canonical_filelist_allocated = 0; + new_canonical_filelist_index = 0; + new_canonical_filelist = 0; +} + +/* The functional equivalent of decc$translate_vms routine. + Designed to produce the same output, but is protected against + malformed paths (original version ACCVIOs in this case) and + does not require VMS-specific DECC RTL */ + +#define NAM$C_MAXRSS 1024 + +char * +__gnat_translate_vms (char *src) +{ + static char retbuf [NAM$C_MAXRSS + 1]; + char *srcendpos, *pos1, *pos2, *retpos; + int disp, path_present = 0; + + if (!src) + return NULL; + + srcendpos = strchr (src, '\0'); + retpos = retbuf; + + /* Look for the node and/or device in front of the path */ + pos1 = src; + pos2 = strchr (pos1, ':'); + + if (pos2 && (pos2 < srcendpos) && (*(pos2 + 1) == ':')) + { + /* There is a node name. "node_name::" becomes "node_name!" */ + disp = pos2 - pos1; + strncpy (retbuf, pos1, disp); + retpos [disp] = '!'; + retpos = retpos + disp + 1; + pos1 = pos2 + 2; + pos2 = strchr (pos1, ':'); + } + + if (pos2) + { + /* There is a device name. "dev_name:" becomes "/dev_name/" */ + *(retpos++) = '/'; + disp = pos2 - pos1; + strncpy (retpos, pos1, disp); + retpos = retpos + disp; + pos1 = pos2 + 1; + *(retpos++) = '/'; + } + else + /* No explicit device; we must look ahead and prepend /sys$disk/ if + the path is absolute */ + if ((*pos1 == '[' || *pos1 == '<') && (pos1 < srcendpos) + && !strchr (".-]>", *(pos1 + 1))) + { + strncpy (retpos, "/sys$disk/", 10); + retpos += 10; + } + + /* Process the path part */ + while (*pos1 == '[' || *pos1 == '<') + { + path_present++; + pos1++; + if (*pos1 == ']' || *pos1 == '>') + { + /* Special case, [] translates to '.' */ + *(retpos++) = '.'; + pos1++; + } + else + { + /* '[000000' means root dir. It can be present in the middle of + the path due to expansion of logical devices, in which case + we skip it */ + if (!strncmp (pos1, "000000", 6) && path_present > 1 && + (*(pos1 + 6) == ']' || *(pos1 + 6) == '>' || *(pos1 + 6) == '.')) + { + pos1 += 6; + if (*pos1 == '.') pos1++; + } + else if (*pos1 == '.') + { + /* Relative path */ + *(retpos++) = '.'; + } + + /* There is a qualified path */ + while (*pos1 && *pos1 != ']' && *pos1 != '>') + { + switch (*pos1) + { + case '.': + /* '.' is used to separate directories. Replace it with '/' but + only if there isn't already '/' just before */ + if (*(retpos - 1) != '/') + *(retpos++) = '/'; + pos1++; + if (pos1 + 1 < srcendpos && *pos1 == '.' && *(pos1 + 1) == '.') + { + /* ellipsis refers to entire subtree; replace with '**' */ + *(retpos++) = '*'; + *(retpos++) = '*'; + *(retpos++) = '/'; + pos1 += 2; + } + break; + case '-' : + /* When after '.' '[' '<' is equivalent to Unix ".." but there + may be several in a row */ + if (*(pos1 - 1) == '.' || *(pos1 - 1) == '[' || + *(pos1 - 1) == '<') + { + while (*pos1 == '-') + { + pos1++; + *(retpos++) = '.'; + *(retpos++) = '.'; + *(retpos++) = '/'; + } + retpos--; + break; + } + /* otherwise fall through to default */ + default: + *(retpos++) = *(pos1++); + } + } + pos1++; + } + } + + if (pos1 < srcendpos) + { + /* Now add the actual file name, until the version suffix if any */ + if (path_present) + *(retpos++) = '/'; + pos2 = strchr (pos1, ';'); + disp = pos2? (pos2 - pos1) : (srcendpos - pos1); + strncpy (retpos, pos1, disp); + retpos += disp; + if (pos2 && pos2 < srcendpos) + { + /* There is a non-empty version suffix. ";<ver>" becomes ".<ver>" */ + *retpos++ = '.'; + disp = srcendpos - pos2 - 1; + strncpy (retpos, pos2 + 1, disp); + retpos += disp; + } + } + + *retpos = '\0'; + + return retbuf; +} + +/* Translate a VMS syntax directory specification in to Unix syntax. If + PREFIXFLAG is set, append an underscore "/". If no indicators of VMS syntax + found, return input string. Also translate a dirname that contains no + slashes, in case it's a logical name. */ + +char * +__gnat_to_canonical_dir_spec (char *dirspec, int prefixflag) +{ + int len; + + strcpy (new_canonical_dirspec, ""); + if (strlen (dirspec)) + { + char *dirspec1; + + if (strchr (dirspec, ']') || strchr (dirspec, ':')) + { + strncpy (new_canonical_dirspec, + __gnat_translate_vms (dirspec), + MAXPATH); + } + else if (!strchr (dirspec, '/') && (dirspec1 = getenv (dirspec)) != 0) + { + strncpy (new_canonical_dirspec, + __gnat_translate_vms (dirspec1), + MAXPATH); + } + else + { + strncpy (new_canonical_dirspec, dirspec, MAXPATH); + } + } + + len = strlen (new_canonical_dirspec); + if (prefixflag && new_canonical_dirspec [len-1] != '/') + strncat (new_canonical_dirspec, "/", MAXPATH); + + new_canonical_dirspec [MAXPATH - 1] = (char) 0; + + return new_canonical_dirspec; + +} + +/* Translate a VMS syntax file specification into Unix syntax. + If no indicators of VMS syntax found, check if it's an uppercase + alphanumeric_ name and if so try it out as an environment + variable (logical name). If all else fails return the + input string. */ + +char * +__gnat_to_canonical_file_spec (char *filespec) +{ + char *filespec1; + + strncpy (new_canonical_filespec, "", MAXPATH); + + if (strchr (filespec, ']') || strchr (filespec, ':')) + { + char *tspec = (char *) __gnat_translate_vms (filespec); + + if (tspec != (char *) -1) + strncpy (new_canonical_filespec, tspec, MAXPATH); + } + else if ((strlen (filespec) == strspn (filespec, + "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_")) + && (filespec1 = getenv (filespec))) + { + char *tspec = (char *) __gnat_translate_vms (filespec1); + + if (tspec != (char *) -1) + strncpy (new_canonical_filespec, tspec, MAXPATH); + } + else + { + strncpy (new_canonical_filespec, filespec, MAXPATH); + } + + new_canonical_filespec [MAXPATH - 1] = (char) 0; + + return new_canonical_filespec; +} + +/* Translate a VMS syntax path specification into Unix syntax. + If no indicators of VMS syntax found, return input string. */ + +char * +__gnat_to_canonical_path_spec (char *pathspec) +{ + char *curr, *next, buff [MAXPATH]; + + if (pathspec == 0) + return pathspec; + + /* If there are /'s, assume it's a Unix path spec and return. */ + if (strchr (pathspec, '/')) + return pathspec; + + new_canonical_pathspec[0] = 0; + curr = pathspec; + + for (;;) + { + next = strchr (curr, ','); + if (next == 0) + next = strchr (curr, 0); + + strncpy (buff, curr, next - curr); + buff[next - curr] = 0; + + /* Check for wildcards and expand if present. */ + if (strchr (buff, '*') || strchr (buff, '%') || strstr (buff, "...")) + { + int i, dirs; + + dirs = __gnat_to_canonical_file_list_init (buff, 1); + for (i = 0; i < dirs; i++) + { + char *next_dir; + + next_dir = __gnat_to_canonical_file_list_next (); + strncat (new_canonical_pathspec, next_dir, MAXPATH); + + /* Don't append the separator after the last expansion. */ + if (i+1 < dirs) + strncat (new_canonical_pathspec, ":", MAXPATH); + } + + __gnat_to_canonical_file_list_free (); + } + else + strncat (new_canonical_pathspec, + __gnat_to_canonical_dir_spec (buff, 0), MAXPATH); + + if (*next == 0) + break; + + strncat (new_canonical_pathspec, ":", MAXPATH); + curr = next + 1; + } + + new_canonical_pathspec [MAXPATH - 1] = (char) 0; + + return new_canonical_pathspec; +} + +static char filename_buff [MAXPATH]; + +static int +translate_unix (char *name, int type ATTRIBUTE_UNUSED) +{ + strncpy (filename_buff, name, MAXPATH); + filename_buff [MAXPATH - 1] = (char) 0; + return 0; +} + +/* Translate a Unix syntax directory specification into VMS syntax. The + PREFIXFLAG has no effect, but is kept for symmetry with + to_canonical_dir_spec. If indicators of VMS syntax found, return input + string. */ + +char * +__gnat_to_host_dir_spec (char *dirspec, int prefixflag ATTRIBUTE_UNUSED) +{ + int len = strlen (dirspec); + + strncpy (new_host_dirspec, dirspec, MAXPATH); + new_host_dirspec [MAXPATH - 1] = (char) 0; + + if (strchr (new_host_dirspec, ']') || strchr (new_host_dirspec, ':')) + return new_host_dirspec; + + while (len > 1 && new_host_dirspec[len - 1] == '/') + { + new_host_dirspec[len - 1] = 0; + len--; + } + + decc$to_vms (new_host_dirspec, translate_unix, 1, 2); + strncpy (new_host_dirspec, filename_buff, MAXPATH); + new_host_dirspec [MAXPATH - 1] = (char) 0; + + return new_host_dirspec; +} + +/* Translate a Unix syntax file specification into VMS syntax. + If indicators of VMS syntax found, return input string. */ + +char * +__gnat_to_host_file_spec (char *filespec) +{ + strncpy (new_host_filespec, "", MAXPATH); + if (strchr (filespec, ']') || strchr (filespec, ':')) + { + strncpy (new_host_filespec, filespec, MAXPATH); + } + else + { + decc$to_vms (filespec, translate_unix, 1, 1); + strncpy (new_host_filespec, filename_buff, MAXPATH); + } + + new_host_filespec [MAXPATH - 1] = (char) 0; + + return new_host_filespec; +} + +void +__gnat_adjust_os_resource_limits () +{ + SYS$ADJWSL (131072, 0); +} + +#else /* VMS */ + +/* Dummy functions for Osint import for non-VMS systems. */ + +int +__gnat_to_canonical_file_list_init + (char *dirspec ATTRIBUTE_UNUSED, int onlydirs ATTRIBUTE_UNUSED) +{ + return 0; +} + +char * +__gnat_to_canonical_file_list_next (void) +{ + static char empty[] = ""; + return empty; +} + +void +__gnat_to_canonical_file_list_free (void) +{ +} + +char * +__gnat_to_canonical_dir_spec (char *dirspec, int prefixflag ATTRIBUTE_UNUSED) +{ + return dirspec; +} + +char * +__gnat_to_canonical_file_spec (char *filespec) +{ + return filespec; +} + +char * +__gnat_to_canonical_path_spec (char *pathspec) +{ + return pathspec; +} + +char * +__gnat_to_host_dir_spec (char *dirspec, int prefixflag ATTRIBUTE_UNUSED) +{ + return dirspec; +} + +char * +__gnat_to_host_file_spec (char *filespec) +{ + return filespec; +} + +void +__gnat_adjust_os_resource_limits (void) +{ +} + +#endif + +#if defined (__mips_vxworks) +int +_flush_cache() +{ + CACHE_USER_FLUSH (0, ENTIRE_CACHE); +} +#endif + +#if defined (IS_CROSS) \ + || (! ((defined (sparc) || defined (i386)) && defined (sun) \ + && defined (__SVR4)) \ + && ! (defined (linux) && (defined (i386) || defined (__x86_64__))) \ + && ! (defined (linux) && defined (__ia64__)) \ + && ! (defined (linux) && defined (powerpc)) \ + && ! defined (__FreeBSD__) \ + && ! defined (__Lynx__) \ + && ! defined (__hpux__) \ + && ! defined (__APPLE__) \ + && ! defined (_AIX) \ + && ! defined (VMS) \ + && ! defined (__MINGW32__)) + +/* Dummy function to satisfy g-trasym.o. See the preprocessor conditional + just above for a list of native platforms that provide a non-dummy + version of this procedure in libaddr2line.a. */ + +void +convert_addresses (const char *file_name ATTRIBUTE_UNUSED, + void *addrs ATTRIBUTE_UNUSED, + int n_addr ATTRIBUTE_UNUSED, + void *buf ATTRIBUTE_UNUSED, + int *len ATTRIBUTE_UNUSED) +{ + *len = 0; +} +#endif + +#if defined (_WIN32) +int __gnat_argument_needs_quote = 1; +#else +int __gnat_argument_needs_quote = 0; +#endif + +/* This option is used to enable/disable object files handling from the + binder file by the GNAT Project module. For example, this is disabled on + Windows (prior to GCC 3.4) as it is already done by the mdll module. + Stating with GCC 3.4 the shared libraries are not based on mdll + anymore as it uses the GCC's -shared option */ +#if defined (_WIN32) \ + && ((__GNUC__ < 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ < 4))) +int __gnat_prj_add_obj_files = 0; +#else +int __gnat_prj_add_obj_files = 1; +#endif + +/* char used as prefix/suffix for environment variables */ +#if defined (_WIN32) +char __gnat_environment_char = '%'; +#else +char __gnat_environment_char = '$'; +#endif + +/* This functions copy the file attributes from a source file to a + destination file. + + mode = 0 : In this mode copy only the file time stamps (last access and + last modification time stamps). + + mode = 1 : In this mode, time stamps and read/write/execute attributes are + copied. + + Returns 0 if operation was successful and -1 in case of error. */ + +int +__gnat_copy_attribs (char *from ATTRIBUTE_UNUSED, char *to ATTRIBUTE_UNUSED, + int mode ATTRIBUTE_UNUSED) +{ +#if defined (VMS) || (defined (__vxworks) && _WRS_VXWORKS_MAJOR < 6) || \ + defined (__nucleus__) + return -1; + +#elif defined (_WIN32) && !defined (RTX) + TCHAR wfrom [GNAT_MAX_PATH_LEN + 2]; + TCHAR wto [GNAT_MAX_PATH_LEN + 2]; + BOOL res; + FILETIME fct, flat, flwt; + HANDLE hfrom, hto; + + S2WSC (wfrom, from, GNAT_MAX_PATH_LEN + 2); + S2WSC (wto, to, GNAT_MAX_PATH_LEN + 2); + + /* retrieve from times */ + + hfrom = CreateFile + (wfrom, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); + + if (hfrom == INVALID_HANDLE_VALUE) + return -1; + + res = GetFileTime (hfrom, &fct, &flat, &flwt); + + CloseHandle (hfrom); + + if (res == 0) + return -1; + + /* retrieve from times */ + + hto = CreateFile + (wto, GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); + + if (hto == INVALID_HANDLE_VALUE) + return -1; + + res = SetFileTime (hto, NULL, &flat, &flwt); + + CloseHandle (hto); + + if (res == 0) + return -1; + + /* Set file attributes in full mode. */ + + if (mode == 1) + { + DWORD attribs = GetFileAttributes (wfrom); + + if (attribs == INVALID_FILE_ATTRIBUTES) + return -1; + + res = SetFileAttributes (wto, attribs); + if (res == 0) + return -1; + } + + return 0; + +#else + GNAT_STRUCT_STAT fbuf; + struct utimbuf tbuf; + + if (GNAT_STAT (from, &fbuf) == -1) + { + return -1; + } + + tbuf.actime = fbuf.st_atime; + tbuf.modtime = fbuf.st_mtime; + + if (utime (to, &tbuf) == -1) + { + return -1; + } + + if (mode == 1) + { + if (chmod (to, fbuf.st_mode) == -1) + { + return -1; + } + } + + return 0; +#endif +} + +int +__gnat_lseek (int fd, long offset, int whence) +{ + return (int) lseek (fd, offset, whence); +} + +/* This function returns the major version number of GCC being used. */ +int +get_gcc_version (void) +{ +#ifdef IN_RTS + return __GNUC__; +#else + return (int) (version_string[0] - '0'); +#endif +} + +int +__gnat_set_close_on_exec (int fd ATTRIBUTE_UNUSED, + int close_on_exec_p ATTRIBUTE_UNUSED) +{ +#if defined (F_GETFD) && defined (FD_CLOEXEC) && ! defined (__vxworks) + int flags = fcntl (fd, F_GETFD, 0); + if (flags < 0) + return flags; + if (close_on_exec_p) + flags |= FD_CLOEXEC; + else + flags &= ~FD_CLOEXEC; + return fcntl (fd, F_SETFD, flags | FD_CLOEXEC); +#elif defined(_WIN32) + HANDLE h = (HANDLE) _get_osfhandle (fd); + if (h == (HANDLE) -1) + return -1; + if (close_on_exec_p) + return ! SetHandleInformation (h, HANDLE_FLAG_INHERIT, 0); + return ! SetHandleInformation (h, HANDLE_FLAG_INHERIT, + HANDLE_FLAG_INHERIT); +#else + /* TODO: Unimplemented. */ + return -1; +#endif +} + +/* Indicates if platforms supports automatic initialization through the + constructor mechanism */ +int +__gnat_binder_supports_auto_init (void) +{ +#ifdef VMS + return 0; +#else + return 1; +#endif +} + +/* Indicates that Stand-Alone Libraries are automatically initialized through + the constructor mechanism */ +int +__gnat_sals_init_using_constructors (void) +{ +#if defined (__vxworks) || defined (__Lynx__) || defined (VMS) + return 0; +#else + return 1; +#endif +} + +#ifdef RTX + +/* In RTX mode, the procedure to get the time (as file time) is different + in RTSS mode and Win32 mode. In order to avoid duplicating an Ada file, + we introduce an intermediate procedure to link against the corresponding + one in each situation. */ + +extern void GetTimeAsFileTime(LPFILETIME pTime); + +void GetTimeAsFileTime(LPFILETIME pTime) +{ +#ifdef RTSS + RtGetRtssTimeAsFileTime (pTime); /* RTSS interface */ +#else + GetSystemTimeAsFileTime (pTime); /* w32 interface */ +#endif +} + +#ifdef RTSS +/* Add symbol that is required to link. It would otherwise be taken from + libgcc.a and it would try to use the gcc constructors that are not + supported by Microsoft linker. */ + +extern void __main (void); + +void __main (void) {} +#endif +#endif + +#if defined (__ANDROID__) + +#include <pthread.h> + +void *__gnat_lwp_self (void) +{ + return (void *) pthread_self (); +} + +#elif defined (linux) +/* There is no function in the glibc to retrieve the LWP of the current + thread. We need to do a system call in order to retrieve this + information. */ +#include <sys/syscall.h> +void *__gnat_lwp_self (void) +{ + return (void *) syscall (__NR_gettid); +} + +#include <sched.h> + +/* glibc versions earlier than 2.7 do not define the routines to handle + dynamically allocated CPU sets. For these targets, we use the static + versions. */ + +#ifdef CPU_ALLOC + +/* Dynamic cpu sets */ + +cpu_set_t *__gnat_cpu_alloc (size_t count) +{ + return CPU_ALLOC (count); +} + +size_t __gnat_cpu_alloc_size (size_t count) +{ + return CPU_ALLOC_SIZE (count); +} + +void __gnat_cpu_free (cpu_set_t *set) +{ + CPU_FREE (set); +} + +void __gnat_cpu_zero (size_t count, cpu_set_t *set) +{ + CPU_ZERO_S (count, set); +} + +void __gnat_cpu_set (int cpu, size_t count, cpu_set_t *set) +{ + /* Ada handles CPU numbers starting from 1, while C identifies the first + CPU by a 0, so we need to adjust. */ + CPU_SET_S (cpu - 1, count, set); +} + +#else + +/* Static cpu sets */ + +cpu_set_t *__gnat_cpu_alloc (size_t count ATTRIBUTE_UNUSED) +{ + return (cpu_set_t *) xmalloc (sizeof (cpu_set_t)); +} + +size_t __gnat_cpu_alloc_size (size_t count ATTRIBUTE_UNUSED) +{ + return sizeof (cpu_set_t); +} + +void __gnat_cpu_free (cpu_set_t *set) +{ + free (set); +} + +void __gnat_cpu_zero (size_t count ATTRIBUTE_UNUSED, cpu_set_t *set) +{ + CPU_ZERO (set); +} + +void __gnat_cpu_set (int cpu, size_t count ATTRIBUTE_UNUSED, cpu_set_t *set) +{ + /* Ada handles CPU numbers starting from 1, while C identifies the first + CPU by a 0, so we need to adjust. */ + CPU_SET (cpu - 1, set); +} +#endif +#endif + +#ifdef __cplusplus +} +#endif |