diff options
Diffstat (limited to 'w32')
| -rw-r--r-- | w32/Makefile.am | 25 | ||||
| -rw-r--r-- | w32/Makefile.in | 696 | ||||
| -rw-r--r-- | w32/compat/dirent.c | 206 | ||||
| -rw-r--r-- | w32/compat/posixfcn.c | 486 | ||||
| -rw-r--r-- | w32/include/dirent.h | 59 | ||||
| -rw-r--r-- | w32/include/dlfcn.h | 29 | ||||
| -rw-r--r-- | w32/include/pathstuff.h | 25 | ||||
| -rw-r--r-- | w32/include/sub_proc.h | 71 | ||||
| -rw-r--r-- | w32/include/w32err.h | 26 | ||||
| -rw-r--r-- | w32/pathstuff.c | 266 | ||||
| -rw-r--r-- | w32/subproc/NMakefile | 60 | ||||
| -rw-r--r-- | w32/subproc/build.bat | 34 | ||||
| -rw-r--r-- | w32/subproc/misc.c | 83 | ||||
| -rw-r--r-- | w32/subproc/proc.h | 29 | ||||
| -rw-r--r-- | w32/subproc/sub_proc.c | 1561 | ||||
| -rw-r--r-- | w32/subproc/w32err.c | 85 |
16 files changed, 3741 insertions, 0 deletions
diff --git a/w32/Makefile.am b/w32/Makefile.am new file mode 100644 index 0000000..a2c4063 --- /dev/null +++ b/w32/Makefile.am @@ -0,0 +1,25 @@ +# Makefile.am to create libw32.a for mingw32 host. +# Copyright (C) 1997-2014 Free Software Foundation, Inc. +# This file is part of GNU Make. +# +# GNU Make is free software; you can redistribute it and/or modify it under +# the terms of the GNU General Public License as published by the Free Software +# Foundation; either version 3 of the License, or (at your option) any later +# version. +# +# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY +# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +# details. +# +# You should have received a copy of the GNU General Public License along with +# this program. If not, see <http://www.gnu.org/licenses/>. + +AUTOMAKE_OPTIONS = subdir-objects + +noinst_LIBRARIES = libw32.a + +libw32_a_SOURCES = subproc/misc.c subproc/sub_proc.c subproc/w32err.c \ + compat/posixfcn.c pathstuff.c + +libw32_a_CPPFLAGS = -I$(srcdir)/include -I$(srcdir)/subproc -I$(top_srcdir) diff --git a/w32/Makefile.in b/w32/Makefile.in new file mode 100644 index 0000000..4760541 --- /dev/null +++ b/w32/Makefile.in @@ -0,0 +1,696 @@ +# Makefile.in generated by automake 1.14.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2013 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# Makefile.am to create libw32.a for mingw32 host. +# Copyright (C) 1997-2014 Free Software Foundation, Inc. +# This file is part of GNU Make. +# +# GNU Make is free software; you can redistribute it and/or modify it under +# the terms of the GNU General Public License as published by the Free Software +# Foundation; either version 3 of the License, or (at your option) any later +# version. +# +# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY +# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +# details. +# +# You should have received a copy of the GNU General Public License along with +# this program. 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it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 3 of the License, or (at your option) any later +version. + +GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR +A PARTICULAR PURPOSE. See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License along with +this program. If not, see <http://www.gnu.org/licenses/>. */ + + +#include <config.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <errno.h> +#include <string.h> +#include <stdlib.h> +#include "dirent.h" + + +DIR* +opendir(const char* pDirName) +{ + struct stat sb; + DIR* pDir; + char* pEndDirName; + int nBufferLen; + + /* sanity checks */ + if (!pDirName) { + errno = EINVAL; + return NULL; + } + if (stat(pDirName, &sb) != 0) { + errno = ENOENT; + return NULL; + } + if ((sb.st_mode & S_IFMT) != S_IFDIR) { + errno = ENOTDIR; + return NULL; + } + + /* allocate a DIR structure to return */ + pDir = (DIR *) malloc(sizeof (DIR)); + + if (!pDir) + return NULL; + + /* input directory name length */ + nBufferLen = strlen(pDirName); + + /* copy input directory name to DIR buffer */ + strcpy(pDir->dir_pDirectoryName, pDirName); + + /* point to end of the copied directory name */ + pEndDirName = &pDir->dir_pDirectoryName[nBufferLen - 1]; + + /* if directory name did not end in '/' or '\', add '/' */ + if ((*pEndDirName != '/') && (*pEndDirName != '\\')) { + pEndDirName++; + *pEndDirName = '/'; + } + + /* now append the wildcard character to the buffer */ + pEndDirName++; + *pEndDirName = '*'; + pEndDirName++; + *pEndDirName = '\0'; + + /* other values defaulted */ + pDir->dir_nNumFiles = 0; + pDir->dir_hDirHandle = INVALID_HANDLE_VALUE; + pDir->dir_ulCookie = __DIRENT_COOKIE; + + return pDir; +} + +void +closedir(DIR *pDir) +{ + /* got a valid pointer? */ + if (!pDir) { + errno = EINVAL; + return; + } + + /* sanity check that this is a DIR pointer */ + if (pDir->dir_ulCookie != __DIRENT_COOKIE) { + errno = EINVAL; + return; + } + + /* close the WINDOWS32 directory handle */ + if (pDir->dir_hDirHandle != INVALID_HANDLE_VALUE) + FindClose(pDir->dir_hDirHandle); + + free(pDir); + + return; +} + +struct dirent * +readdir(DIR* pDir) +{ + WIN32_FIND_DATA wfdFindData; + + if (!pDir) { + errno = EINVAL; + return NULL; + } + + /* sanity check that this is a DIR pointer */ + if (pDir->dir_ulCookie != __DIRENT_COOKIE) { + errno = EINVAL; + return NULL; + } + + if (pDir->dir_nNumFiles == 0) { + pDir->dir_hDirHandle = FindFirstFile(pDir->dir_pDirectoryName, &wfdFindData); + if (pDir->dir_hDirHandle == INVALID_HANDLE_VALUE) + return NULL; + } else if (!FindNextFile(pDir->dir_hDirHandle, &wfdFindData)) + return NULL; + + /* bump count for next call to readdir() or telldir() */ + pDir->dir_nNumFiles++; + + /* fill in struct dirent values */ + pDir->dir_sdReturn.d_ino = (ino_t)-1; + strcpy(pDir->dir_sdReturn.d_name, wfdFindData.cFileName); + + return &pDir->dir_sdReturn; +} + +void +rewinddir(DIR* pDir) +{ + if (!pDir) { + errno = EINVAL; + return; + } + + /* sanity check that this is a DIR pointer */ + if (pDir->dir_ulCookie != __DIRENT_COOKIE) { + errno = EINVAL; + return; + } + + /* close the WINDOWS32 directory handle */ + if (pDir->dir_hDirHandle != INVALID_HANDLE_VALUE) + if (!FindClose(pDir->dir_hDirHandle)) + errno = EBADF; + + /* reset members which control readdir() */ + pDir->dir_hDirHandle = INVALID_HANDLE_VALUE; + pDir->dir_nNumFiles = 0; + + return; +} + +int +telldir(DIR* pDir) +{ + if (!pDir) { + errno = EINVAL; + return -1; + } + + /* sanity check that this is a DIR pointer */ + if (pDir->dir_ulCookie != __DIRENT_COOKIE) { + errno = EINVAL; + return -1; + } + + /* return number of times readdir() called */ + return pDir->dir_nNumFiles; +} + +void +seekdir(DIR* pDir, long nPosition) +{ + if (!pDir) + return; + + /* sanity check that this is a DIR pointer */ + if (pDir->dir_ulCookie != __DIRENT_COOKIE) + return; + + /* go back to beginning of directory */ + rewinddir(pDir); + + /* loop until we have found position we care about */ + for (--nPosition; nPosition && readdir(pDir); nPosition--); + + /* flag invalid nPosition value */ + if (nPosition) + errno = EINVAL; + + return; +} diff --git a/w32/compat/posixfcn.c b/w32/compat/posixfcn.c new file mode 100644 index 0000000..b366399 --- /dev/null +++ b/w32/compat/posixfcn.c @@ -0,0 +1,486 @@ +/* Replacements for Posix functions and Posix functionality for MS-Windows. + +Copyright (C) 2013-2014 Free Software Foundation, Inc. +This file is part of GNU Make. + +GNU Make is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 3 of the License, or (at your option) any later +version. + +GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR +A PARTICULAR PURPOSE. See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License along with +this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include <string.h> +#include <io.h> +#include <stdarg.h> +#include <errno.h> +#include <windows.h> + +#include "dlfcn.h" + +#include "makeint.h" +#include "job.h" + +#ifndef NO_OUTPUT_SYNC +/* Support for OUTPUT_SYNC and related functionality. */ + +/* Emulation of fcntl that supports only F_GETFD and F_SETLKW. */ +int +fcntl (intptr_t fd, int cmd, ...) +{ + va_list ap; + + va_start (ap, cmd); + + switch (cmd) + { + case F_GETFD: + va_end (ap); + /* Could have used GetHandleInformation, but that isn't + supported on Windows 9X. */ + if (_get_osfhandle (fd) == -1) + return -1; + return 0; + case F_SETLKW: + { + void *buf = va_arg (ap, void *); + struct flock *fl = (struct flock *)buf; + HANDLE hmutex = (HANDLE)fd; + static struct flock last_fl; + short last_type = last_fl.l_type; + + va_end (ap); + + if (hmutex == INVALID_HANDLE_VALUE || !hmutex) + return -1; + + last_fl = *fl; + + switch (fl->l_type) + { + + case F_WRLCK: + { + DWORD result; + + if (last_type == F_WRLCK) + { + /* Don't call WaitForSingleObject if we already + own the mutex, because doing so will require + us to call ReleaseMutex an equal number of + times, before the mutex is actually + released. */ + return 0; + } + + result = WaitForSingleObject (hmutex, INFINITE); + switch (result) + { + case WAIT_OBJECT_0: + /* We don't care if the mutex owner crashed or + exited. */ + case WAIT_ABANDONED: + return 0; + case WAIT_FAILED: + case WAIT_TIMEOUT: /* cannot happen, really */ + { + DWORD err = GetLastError (); + + /* Invalidate the last command. */ + memset (&last_fl, 0, sizeof (last_fl)); + + switch (err) + { + case ERROR_INVALID_HANDLE: + case ERROR_INVALID_FUNCTION: + errno = EINVAL; + return -1; + default: + errno = EDEADLOCK; + return -1; + } + } + } + } + case F_UNLCK: + { + /* FIXME: Perhaps we should call ReleaseMutex + repatedly until it errors out, to make sure the + mutext is released even if we somehow managed to + to take ownership multiple times? */ + BOOL status = ReleaseMutex (hmutex); + + if (status) + return 0; + else + { + DWORD err = GetLastError (); + + if (err == ERROR_NOT_OWNER) + errno = EPERM; + else + { + memset (&last_fl, 0, sizeof (last_fl)); + errno = EINVAL; + } + return -1; + } + } + default: + errno = ENOSYS; + return -1; + } + } + default: + errno = ENOSYS; + va_end (ap); + return -1; + } +} + +static intptr_t mutex_handle = -1; + +/* Record in a static variable the mutex handle we were requested to + use. That nameless mutex was created by the top-level Make, and + its handle was passed to us via inheritance. The value of that + handle is passed via the command-line arguments, so that we know + which handle to use. */ +void +record_sync_mutex (const char *str) +{ + char *endp; + intptr_t hmutex = strtol (str, &endp, 16); + + if (*endp == '\0') + mutex_handle = hmutex; + else + { + mutex_handle = -1; + errno = EINVAL; + } +} + +/* Create a new mutex or reuse one created by our parent. */ +intptr_t +create_mutex (void) +{ + SECURITY_ATTRIBUTES secattr; + intptr_t hmutex = -1; + + /* If we have a mutex handle passed from the parent Make, just use + that. */ + if (mutex_handle > 0) + return mutex_handle; + + /* We are the top-level Make, and we want the handle to be inherited + by our child processes. */ + secattr.nLength = sizeof (secattr); + secattr.lpSecurityDescriptor = NULL; /* use default security descriptor */ + secattr.bInheritHandle = TRUE; + + hmutex = (intptr_t)CreateMutex (&secattr, FALSE, NULL); + if (!hmutex) + { + DWORD err = GetLastError (); + + fprintf (stderr, "CreateMutex: error %lu\n", err); + errno = ENOLCK; + hmutex = -1; + } + + mutex_handle = hmutex; + return hmutex; +} + +/* Return non-zero if F1 and F2 are 2 streams representing the same + file or pipe or device. */ +int +same_stream (FILE *f1, FILE *f2) +{ + HANDLE fh1 = (HANDLE)_get_osfhandle (fileno (f1)); + HANDLE fh2 = (HANDLE)_get_osfhandle (fileno (f2)); + + /* Invalid file descriptors get treated as different streams. */ + if (fh1 && fh1 != INVALID_HANDLE_VALUE + && fh2 && fh2 != INVALID_HANDLE_VALUE) + { + if (fh1 == fh2) + return 1; + else + { + DWORD ftyp1 = GetFileType (fh1), ftyp2 = GetFileType (fh2); + + if (ftyp1 != ftyp2 + || ftyp1 == FILE_TYPE_UNKNOWN || ftyp2 == FILE_TYPE_UNKNOWN) + return 0; + else if (ftyp1 == FILE_TYPE_CHAR) + { + /* For character devices, check if they both refer to a + console. This loses if both handles refer to the + null device (FIXME!), but in that case we don't care + in the context of Make. */ + DWORD conmode1, conmode2; + + /* Each process on Windows can have at most 1 console, + so if both handles are for the console device, they + are the same. We also compare the console mode to + distinguish between stdin and stdout/stderr. */ + if (GetConsoleMode (fh1, &conmode1) + && GetConsoleMode (fh2, &conmode2) + && conmode1 == conmode2) + return 1; + } + else + { + /* For disk files and pipes, compare their unique + attributes. */ + BY_HANDLE_FILE_INFORMATION bhfi1, bhfi2; + + /* Pipes get zero in the volume serial number, but do + appear to have meaningful information in file index + attributes. We test file attributes as well, for a + good measure. */ + if (GetFileInformationByHandle (fh1, &bhfi1) + && GetFileInformationByHandle (fh2, &bhfi2)) + return (bhfi1.dwVolumeSerialNumber == bhfi2.dwVolumeSerialNumber + && bhfi1.nFileIndexLow == bhfi2.nFileIndexLow + && bhfi1.nFileIndexHigh == bhfi2.nFileIndexHigh + && bhfi1.dwFileAttributes == bhfi2.dwFileAttributes); + } + } + } + return 0; +} + +/* A replacement for tmpfile, since the MSVCRT implementation creates + the file in the root directory of the current drive, which might + not be writable by our user. Most of the code borrowed from + create_batch_file, see job.c. */ +FILE * +tmpfile (void) +{ + char temp_path[MAXPATHLEN]; + unsigned path_size = GetTempPath (sizeof temp_path, temp_path); + int path_is_dot = 0; + /* The following variable is static so we won't try to reuse a name + that was generated a little while ago, because that file might + not be on disk yet, since we use FILE_ATTRIBUTE_TEMPORARY below, + which tells the OS it doesn't need to flush the cache to disk. + If the file is not yet on disk, we might think the name is + available, while it really isn't. This happens in parallel + builds, where Make doesn't wait for one job to finish before it + launches the next one. */ + static unsigned uniq = 0; + static int second_loop = 0; + const char base[] = "gmake_tmpf"; + const unsigned sizemax = sizeof base - 1 + 4 + 10 + 10; + unsigned pid = GetCurrentProcessId (); + + if (path_size == 0) + { + path_size = GetCurrentDirectory (sizeof temp_path, temp_path); + path_is_dot = 1; + } + + ++uniq; + if (uniq >= 0x10000 && !second_loop) + { + /* If we already had 64K batch files in this + process, make a second loop through the numbers, + looking for free slots, i.e. files that were + deleted in the meantime. */ + second_loop = 1; + uniq = 1; + } + while (path_size > 0 && + path_size + sizemax < sizeof temp_path && + !(uniq >= 0x10000 && second_loop)) + { + HANDLE h; + + sprintf (temp_path + path_size, + "%s%s%u-%x.tmp", + temp_path[path_size - 1] == '\\' ? "" : "\\", + base, pid, uniq); + h = CreateFile (temp_path, /* file name */ + GENERIC_READ | GENERIC_WRITE | DELETE, /* desired access */ + FILE_SHARE_READ | FILE_SHARE_WRITE, /* share mode */ + NULL, /* default security attributes */ + CREATE_NEW, /* creation disposition */ + FILE_ATTRIBUTE_NORMAL | /* flags and attributes */ + FILE_ATTRIBUTE_TEMPORARY | + FILE_FLAG_DELETE_ON_CLOSE, + NULL); /* no template file */ + + if (h == INVALID_HANDLE_VALUE) + { + const DWORD er = GetLastError (); + + if (er == ERROR_FILE_EXISTS || er == ERROR_ALREADY_EXISTS) + { + ++uniq; + if (uniq == 0x10000 && !second_loop) + { + second_loop = 1; + uniq = 1; + } + } + + /* The temporary path is not guaranteed to exist, or might + not be writable by user. Use the current directory as + fallback. */ + else if (path_is_dot == 0) + { + path_size = GetCurrentDirectory (sizeof temp_path, temp_path); + path_is_dot = 1; + } + + else + { + errno = EACCES; + break; + } + } + else + { + int fd = _open_osfhandle ((intptr_t)h, 0); + + return _fdopen (fd, "w+b"); + } + } + + if (uniq >= 0x10000) + errno = EEXIST; + return NULL; +} + +#endif /* !NO_OUTPUT_SYNC */ + +#if MAKE_LOAD + +/* Support for dynamic loading of objects. */ + + +static DWORD last_err; + +void * +dlopen (const char *file, int mode) +{ + char dllfn[MAX_PATH], *p; + HANDLE dllhandle; + + if ((mode & ~(RTLD_LAZY | RTLD_NOW | RTLD_GLOBAL)) != 0) + { + errno = EINVAL; + last_err = ERROR_INVALID_PARAMETER; + return NULL; + } + + if (!file) + dllhandle = GetModuleHandle (NULL); + else + { + /* MSDN says to be sure to use backslashes in the DLL file name. */ + strcpy (dllfn, file); + for (p = dllfn; *p; p++) + if (*p == '/') + *p = '\\'; + + dllhandle = LoadLibrary (dllfn); + } + if (!dllhandle) + last_err = GetLastError (); + + return dllhandle; +} + +char * +dlerror (void) +{ + static char errbuf[1024]; + DWORD ret; + + if (!last_err) + return NULL; + + ret = FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM + | FORMAT_MESSAGE_IGNORE_INSERTS, + NULL, last_err, 0, errbuf, sizeof (errbuf), NULL); + while (ret > 0 && (errbuf[ret - 1] == '\n' || errbuf[ret - 1] == '\r')) + --ret; + + errbuf[ret] = '\0'; + if (!ret) + sprintf (errbuf, "Error code %lu", last_err); + + last_err = 0; + return errbuf; +} + +void * +dlsym (void *handle, const char *name) +{ + FARPROC addr = NULL; + + if (!handle || handle == INVALID_HANDLE_VALUE) + { + last_err = ERROR_INVALID_PARAMETER; + return NULL; + } + + addr = GetProcAddress (handle, name); + if (!addr) + last_err = GetLastError (); + + return (void *)addr; +} + +int +dlclose (void *handle) +{ + if (!handle || handle == INVALID_HANDLE_VALUE) + return -1; + if (!FreeLibrary (handle)) + return -1; + + return 0; +} + + +#endif /* MAKE_LOAD */ + + +/* MS runtime's isatty returns non-zero for any character device, + including the null device, which is not what we want. */ +int +isatty (int fd) +{ + HANDLE fh = (HANDLE) _get_osfhandle (fd); + DWORD con_mode; + + if (fh == INVALID_HANDLE_VALUE) + { + errno = EBADF; + return 0; + } + if (GetConsoleMode (fh, &con_mode)) + return 1; + + errno = ENOTTY; + return 0; +} + +char * +ttyname (int fd) +{ + /* This "knows" that Make only asks about stdout and stderr. A more + sophisticated implementation should test whether FD is open for + input or output. We can do that by looking at the mode returned + by GetConsoleMode. */ + return "CONOUT$"; +} diff --git a/w32/include/dirent.h b/w32/include/dirent.h new file mode 100644 index 0000000..13308de --- /dev/null +++ b/w32/include/dirent.h @@ -0,0 +1,59 @@ +/* Windows version of dirent.h +Copyright (C) 1996-2014 Free Software Foundation, Inc. +This file is part of GNU Make. + +GNU Make is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 3 of the License, or (at your option) any later +version. + +GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR +A PARTICULAR PURPOSE. See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License along with +this program. If not, see <http://www.gnu.org/licenses/>. */ + +#ifndef _DIRENT_H +#define _DIRENT_H + +#ifdef __MINGW32__ +# include <windows.h> +# include_next <dirent.h> +#else + +#include <stdlib.h> +#include <windows.h> +#include <limits.h> +#include <sys/types.h> + +#ifndef NAME_MAX +#define NAME_MAX 255 +#endif + +#define __DIRENT_COOKIE 0xfefeabab + + +struct dirent +{ + ino_t d_ino; /* unused - no equivalent on WINDOWS32 */ + char d_name[NAME_MAX+1]; +}; + +typedef struct dir_struct { + ULONG dir_ulCookie; + HANDLE dir_hDirHandle; + DWORD dir_nNumFiles; + char dir_pDirectoryName[NAME_MAX+1]; + struct dirent dir_sdReturn; +} DIR; + +DIR *opendir(const char *); +struct dirent *readdir(DIR *); +void rewinddir(DIR *); +void closedir(DIR *); +int telldir(DIR *); +void seekdir(DIR *, long); + +#endif /* !__MINGW32__ */ +#endif diff --git a/w32/include/dlfcn.h b/w32/include/dlfcn.h new file mode 100644 index 0000000..c64ac7b --- /dev/null +++ b/w32/include/dlfcn.h @@ -0,0 +1,29 @@ +/* dlfcn.h replacement for MS-Windows build. +Copyright (C) 2013-2014 Free Software Foundation, Inc. +This file is part of GNU Make. + +GNU Make is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 3 of the License, or (at your option) any later +version. + +GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR +A PARTICULAR PURPOSE. See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License along with +this program. If not, see <http://www.gnu.org/licenses/>. */ + +#ifndef DLFCN_H +#define DLFCN_H + +#define RTLD_LAZY 1 +#define RTLD_NOW 2 +#define RTLD_GLOBAL 4 + +extern void *dlopen (const char *, int); +extern void *dlsym (void *, const char *); +extern char *dlerror (void); +extern int dlclose (void *); + +#endif /* DLFCN_H */ diff --git a/w32/include/pathstuff.h b/w32/include/pathstuff.h new file mode 100644 index 0000000..fb03f12 --- /dev/null +++ b/w32/include/pathstuff.h @@ -0,0 +1,25 @@ +/* Definitions for Windows path manipulation. +Copyright (C) 1996-2014 Free Software Foundation, Inc. +This file is part of GNU Make. + +GNU Make is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 3 of the License, or (at your option) any later +version. + +GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR +A PARTICULAR PURPOSE. See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License along with +this program. If not, see <http://www.gnu.org/licenses/>. */ + +#ifndef _PATHSTUFF_H +#define _PATHSTUFF_H + +char *convert_Path_to_windows32(char *Path, char to_delim); +char *convert_vpath_to_windows32(char *Path, char to_delim); +char *w32ify(const char *file, int resolve); +char *getcwd_fs(char *buf, int len); + +#endif diff --git a/w32/include/sub_proc.h b/w32/include/sub_proc.h new file mode 100644 index 0000000..1e1b213 --- /dev/null +++ b/w32/include/sub_proc.h @@ -0,0 +1,71 @@ +/* Definitions for Windows process invocation. +Copyright (C) 1996-2014 Free Software Foundation, Inc. +This file is part of GNU Make. + +GNU Make is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 3 of the License, or (at your option) any later +version. + +GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR +A PARTICULAR PURPOSE. See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License along with +this program. If not, see <http://www.gnu.org/licenses/>. */ + +#ifndef SUB_PROC_H +#define SUB_PROC_H + +/* + * Component Name: + * + * $Date$ + * + * $Source$ + * + * $Id$ + */ + +#define EXTERN_DECL(entry, args) extern entry args +#define VOID_DECL void + +EXTERN_DECL(HANDLE process_init, (VOID_DECL)); +EXTERN_DECL(HANDLE process_init_fd, (HANDLE stdinh, HANDLE stdouth, + HANDLE stderrh)); +EXTERN_DECL(long process_begin, (HANDLE proc, char **argv, char **envp, + char *exec_path, char *as_user)); +EXTERN_DECL(long process_pipe_io, (HANDLE proc, char *stdin_data, + int stdin_data_len)); +EXTERN_DECL(long process_file_io, (HANDLE proc)); +EXTERN_DECL(void process_cleanup, (HANDLE proc)); +EXTERN_DECL(HANDLE process_wait_for_any, (int block, DWORD* pdwWaitStatus)); +EXTERN_DECL(void process_register, (HANDLE proc)); +EXTERN_DECL(HANDLE process_easy, (char** argv, char** env, + int outfd, int errfd)); +EXTERN_DECL(BOOL process_kill, (HANDLE proc, int signal)); +EXTERN_DECL(int process_used_slots, (VOID_DECL)); + +/* support routines */ +EXTERN_DECL(long process_errno, (HANDLE proc)); +EXTERN_DECL(long process_last_err, (HANDLE proc)); +EXTERN_DECL(long process_exit_code, (HANDLE proc)); +EXTERN_DECL(long process_signal, (HANDLE proc)); +EXTERN_DECL(char * process_outbuf, (HANDLE proc)); +EXTERN_DECL(char * process_errbuf, (HANDLE proc)); +EXTERN_DECL(int process_outcnt, (HANDLE proc)); +EXTERN_DECL(int process_errcnt, (HANDLE proc)); +EXTERN_DECL(void process_pipes, (HANDLE proc, int pipes[3])); +EXTERN_DECL(void process_noinherit, (int fildes)); + +/* jobserver routines */ +EXTERN_DECL(int open_jobserver_semaphore, (const char* name)); +EXTERN_DECL(int create_jobserver_semaphore, (int tokens)); +EXTERN_DECL(void free_jobserver_semaphore, (VOID_DECL)); +EXTERN_DECL(int acquire_jobserver_semaphore, (VOID_DECL)); +EXTERN_DECL(int release_jobserver_semaphore, (VOID_DECL)); +EXTERN_DECL(int has_jobserver_semaphore, (VOID_DECL)); +EXTERN_DECL(char* get_jobserver_semaphore_name, (VOID_DECL)); +EXTERN_DECL(int wait_for_semaphore_or_child_process, (VOID_DECL)); + +#endif diff --git a/w32/include/w32err.h b/w32/include/w32err.h new file mode 100644 index 0000000..7d72226 --- /dev/null +++ b/w32/include/w32err.h @@ -0,0 +1,26 @@ +/* Definitions for Windows error handling. +Copyright (C) 1996-2014 Free Software Foundation, Inc. +This file is part of GNU Make. + +GNU Make is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 3 of the License, or (at your option) any later +version. + +GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR +A PARTICULAR PURPOSE. See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License along with +this program. If not, see <http://www.gnu.org/licenses/>. */ + +#ifndef _W32ERR_H_ +#define _W32ERR_H_ + +#ifndef EXTERN_DECL +#define EXTERN_DECL(entry, args) entry args +#endif + +EXTERN_DECL(const char * map_windows32_error_to_string, (DWORD error)); + +#endif /* !_W32ERR_H */ diff --git a/w32/pathstuff.c b/w32/pathstuff.c new file mode 100644 index 0000000..55332ab --- /dev/null +++ b/w32/pathstuff.c @@ -0,0 +1,266 @@ +/* Path conversion for Windows pathnames. +Copyright (C) 1996-2014 Free Software Foundation, Inc. +This file is part of GNU Make. + +GNU Make is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 3 of the License, or (at your option) any later +version. + +GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR +A PARTICULAR PURPOSE. See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License along with +this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include "makeint.h" +#include <string.h> +#include <stdlib.h> +#include "pathstuff.h" + +/* + * Convert delimiter separated vpath to Canonical format. + */ +char * +convert_vpath_to_windows32(char *Path, char to_delim) +{ + char *etok; /* token separator for old Path */ + + /* + * Convert all spaces to delimiters. Note that pathnames which + * contain blanks get trounced here. Use 8.3 format as a workaround. + */ + for (etok = Path; etok && *etok; etok++) + if (isblank ((unsigned char) *etok)) + *etok = to_delim; + + return (convert_Path_to_windows32(Path, to_delim)); +} + +/* + * Convert delimiter separated path to Canonical format. + */ +char * +convert_Path_to_windows32(char *Path, char to_delim) +{ + char *etok; /* token separator for old Path */ + char *p; /* points to element of old Path */ + + /* is this a multi-element Path ? */ + /* FIXME: Perhaps use ":;\"" in strpbrk to convert all quotes to + delimiters as well, as a way to handle quoted directories in + PATH? */ + for (p = Path, etok = strpbrk(p, ":;"); + etok; + etok = strpbrk(p, ":;")) + if ((etok - p) == 1) { + if (*(etok - 1) == ';' || + *(etok - 1) == ':') { + etok[-1] = to_delim; + etok[0] = to_delim; + p = ++etok; + continue; /* ignore empty bucket */ + } else if (!isalpha ((unsigned char) *p)) { + /* found one to count, handle things like '.' */ + *etok = to_delim; + p = ++etok; + } else if ((*etok == ':') && (etok = strpbrk(etok+1, ":;"))) { + /* found one to count, handle drive letter */ + *etok = to_delim; + p = ++etok; + } else + /* all finished, force abort */ + p += strlen(p); + } else if (*p == '"') { /* a quoted directory */ + for (p++; *p && *p != '"'; p++) /* skip quoted part */ + ; + etok = strpbrk(p, ":;"); /* find next delimiter */ + if (etok) { + *etok = to_delim; + p = ++etok; + } else + p += strlen(p); + } else { + /* found another one, no drive letter */ + *etok = to_delim; + p = ++etok; + } + + return Path; +} + +/* + * Convert to forward slashes. Resolve to full pathname optionally + */ +char * +w32ify(const char *filename, int resolve) +{ + static char w32_path[FILENAME_MAX]; + char *p; + + if (resolve) + _fullpath(w32_path, filename, sizeof (w32_path)); + else + strncpy(w32_path, filename, sizeof (w32_path)); + + for (p = w32_path; p && *p; p++) + if (*p == '\\') + *p = '/'; + + return w32_path; +} + +char * +getcwd_fs(char* buf, int len) +{ + char *p = getcwd(buf, len); + + if (p) { + char *q = w32ify(buf, 0); + strncpy(buf, q, len); + } + + return p; +} + +#ifdef unused +/* + * Convert delimiter separated pathnames (e.g. PATH) or single file pathname + * (e.g. c:/foo, c:\bar) to NutC format. If we are handed a string that + * _NutPathToNutc() fails to convert, just return the path we were handed + * and assume the caller will know what to do with it (It was probably + * a mistake to try and convert it anyway due to some of the bizarre things + * that might look like pathnames in makefiles). + */ +char * +convert_path_to_nutc(char *path) +{ + int count; /* count of path elements */ + char *nutc_path; /* new NutC path */ + int nutc_path_len; /* length of buffer to allocate for new path */ + char *pathp; /* pointer to nutc_path used to build it */ + char *etok; /* token separator for old path */ + char *p; /* points to element of old path */ + char sep; /* what flavor of separator used in old path */ + char *rval; + + /* is this a multi-element path ? */ + for (p = path, etok = strpbrk(p, ":;"), count = 0; + etok; + etok = strpbrk(p, ":;")) + if ((etok - p) == 1) { + if (*(etok - 1) == ';' || + *(etok - 1) == ':') { + p = ++etok; + continue; /* ignore empty bucket */ + } else if (etok = strpbrk(etok+1, ":;")) + /* found one to count, handle drive letter */ + p = ++etok, count++; + else + /* all finished, force abort */ + p += strlen(p); + } else + /* found another one, no drive letter */ + p = ++etok, count++; + + if (count) { + count++; /* x1;x2;x3 <- need to count x3 */ + + /* + * Hazard a guess on how big the buffer needs to be. + * We have to convert things like c:/foo to /c=/foo. + */ + nutc_path_len = strlen(path) + (count*2) + 1; + nutc_path = xmalloc(nutc_path_len); + pathp = nutc_path; + *pathp = '\0'; + + /* + * Loop through PATH and convert one elemnt of the path at at + * a time. Single file pathnames will fail this and fall + * to the logic below loop. + */ + for (p = path, etok = strpbrk(p, ":;"); + etok; + etok = strpbrk(p, ":;")) { + + /* don't trip up on device specifiers or empty path slots */ + if ((etok - p) == 1) + if (*(etok - 1) == ';' || + *(etok - 1) == ':') { + p = ++etok; + continue; + } else if ((etok = strpbrk(etok+1, ":;")) == NULL) + break; /* thing found was a WINDOWS32 pathname */ + + /* save separator */ + sep = *etok; + + /* terminate the current path element -- temporarily */ + *etok = '\0'; + +#ifdef __NUTC__ + /* convert to NutC format */ + if (_NutPathToNutc(p, pathp, 0) == FALSE) { + free(nutc_path); + rval = savestring(path, strlen(path)); + return rval; + } +#else + *pathp++ = '/'; + *pathp++ = p[0]; + *pathp++ = '='; + *pathp++ = '/'; + strcpy(pathp, &p[2]); +#endif + + pathp += strlen(pathp); + *pathp++ = ':'; /* use Unix style path separtor for new path */ + *pathp = '\0'; /* make sure we are null terminaed */ + + /* restore path separator */ + *etok = sep; + + /* point p to first char of next path element */ + p = ++etok; + + } + } else { + nutc_path_len = strlen(path) + 3; + nutc_path = xmalloc(nutc_path_len); + pathp = nutc_path; + *pathp = '\0'; + p = path; + } + + /* + * OK, here we handle the last element in PATH (e.g. c of a;b;c) + * or the path was a single filename and will be converted + * here. Note, testing p here assures that we don't trip up + * on paths like a;b; which have trailing delimiter followed by + * nothing. + */ + if (*p != '\0') { +#ifdef __NUTC__ + if (_NutPathToNutc(p, pathp, 0) == FALSE) { + free(nutc_path); + rval = savestring(path, strlen(path)); + return rval; + } +#else + *pathp++ = '/'; + *pathp++ = p[0]; + *pathp++ = '='; + *pathp++ = '/'; + strcpy(pathp, &p[2]); +#endif + } else + *(pathp-1) = '\0'; /* we're already done, don't leave trailing : */ + + rval = savestring(nutc_path, strlen(nutc_path)); + free(nutc_path); + return rval; +} + +#endif diff --git a/w32/subproc/NMakefile b/w32/subproc/NMakefile new file mode 100644 index 0000000..ebf516d --- /dev/null +++ b/w32/subproc/NMakefile @@ -0,0 +1,60 @@ +# NOTE: If you have no 'make' program at all to process this makefile, run +# 'build.bat' instead. +# +# Copyright (C) 1996-2014 Free Software Foundation, Inc. +# This file is part of GNU Make. +# +# GNU Make is free software; you can redistribute it and/or modify it under +# the terms of the GNU General Public License as published by the Free Software +# Foundation; either version 3 of the License, or (at your option) any later +# version. +# +# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY +# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +# details. +# +# You should have received a copy of the GNU General Public License along with +# this program. If not, see <http://www.gnu.org/licenses/>. + +# +# NMakefile for GNU Make (subproc library) +# +LIB = lib +CC = cl +MAKE = nmake + +OUTDIR=. +MAKEFILE=NMakefile + +CFLAGS_any = /nologo /MT /W4 /GX /Z7 /YX /D WIN32 /D WINDOWS32 /D _WINDOWS -I. -I../include -I../../ +CFLAGS_debug = $(CFLAGS_any) /Od /D _DEBUG /FR.\WinDebug\ /Fp.\WinDebug\subproc.pch /Fo.\WinDebug/ +CFLAGS_release = $(CFLAGS_any) /O2 /FR.\WinRel\ /Fp.\WinRel\subproc.pch /Fo.\WinRel/ + +all: Release Debug + +Release: + $(MAKE) /f $(MAKEFILE) OUTDIR=WinRel CFLAGS="$(CFLAGS_release)" WinRel/subproc.lib +Debug: + $(MAKE) /f $(MAKEFILE) OUTDIR=WinDebug CFLAGS="$(CFLAGS_debug)" WinDebug/subproc.lib + +clean: + rmdir /s /q WinRel WinDebug + erase *.pdb + +$(OUTDIR): + if not exist .\$@\nul mkdir .\$@ + +OBJS = $(OUTDIR)/misc.obj $(OUTDIR)/w32err.obj $(OUTDIR)/sub_proc.obj + +$(OUTDIR)/subproc.lib: $(OUTDIR) $(OBJS) + $(LIB) -out:$@ @<< + $(OBJS) +<< + +.c{$(OUTDIR)}.obj: + $(CC) $(CFLAGS) /c $< + +$(OUTDIR)/misc.obj: misc.c proc.h +$(OUTDIR)/sub_proc.obj: sub_proc.c ../include/sub_proc.h ../include/w32err.h proc.h +$(OUTDIR)/w32err.obj: w32err.c ../include/w32err.h diff --git a/w32/subproc/build.bat b/w32/subproc/build.bat new file mode 100644 index 0000000..f8604ce --- /dev/null +++ b/w32/subproc/build.bat @@ -0,0 +1,34 @@ +@if "%COMPILER%" == "gcc" GoTo GCCBuild
+if not exist .\WinDebug\nul mkdir .\WinDebug
+cl.exe /nologo /MT /W4 /GX /Z7 /YX /Od /I .. /I . /I ../include /I ../.. /D WIN32 /D WINDOWS32 /D _DEBUG /D _WINDOWS /FR.\WinDebug/ /Fp.\WinDebug/subproc.pch /Fo.\WinDebug/ /c misc.c
+cl.exe /nologo /MT /W4 /GX /Z7 /YX /Od /I .. /I . /I ../include /I ../.. /D WIN32 /D WINDOWS32 /D _DEBUG /D _WINDOWS /FR.\WinDebug/ /Fp.\WinDebug/subproc.pch /Fo.\WinDebug/ /c sub_proc.c
+cl.exe /nologo /MT /W4 /GX /Z7 /YX /Od /I .. /I . /I ../include /I ../.. /D WIN32 /D WINDOWS32 /D _DEBUG /D _WINDOWS /FR.\WinDebug/ /Fp.\WinDebug/subproc.pch /Fo.\WinDebug/ /c w32err.c
+lib.exe /NOLOGO /OUT:.\WinDebug\subproc.lib .\WinDebug/misc.obj .\WinDebug/sub_proc.obj .\WinDebug/w32err.obj
+if not exist .\WinRel\nul mkdir .\WinRel
+cl.exe /nologo /MT /W4 /GX /YX /O2 /I .. /I . /I ../include /I ../.. /D WIN32 /D WINDOWS32 /D NDEBUG /D _WINDOWS /FR.\WinRel/ /Fp.\WinRel/subproc.pch /Fo.\WinRel/ /c misc.c
+cl.exe /nologo /MT /W4 /GX /YX /O2 /I .. /I . /I ../include /I ../.. /D WIN32 /D WINDOWS32 /D NDEBUG /D _WINDOWS /FR.\WinRel/ /Fp.\WinRel/subproc.pch /Fo.\WinRel/ /c sub_proc.c
+cl.exe /nologo /MT /W4 /GX /YX /O2 /I .. /I . /I ../include /I ../.. /D WIN32 /D WINDOWS32 /D NDEBUG /D _WINDOWS /FR.\WinRel/ /Fp.\WinRel/subproc.pch /Fo.\WinRel/ /c w32err.c
+lib.exe /NOLOGO /OUT:.\WinRel\subproc.lib .\WinRel/misc.obj .\WinRel/sub_proc.obj .\WinRel/w32err.obj
+GoTo BuildEnd
+:GCCBuild
+gcc -mthreads -Wall -gdwarf-2 -g3 %OPT% -I.. -I. -I../include -I../.. -DWINDOWS32 -c misc.c -o ../../w32_misc.o
+gcc -mthreads -Wall -gdwarf-2 -g3 %OPT% -I.. -I. -I../include -I../.. -DWINDOWS32 -c sub_proc.c -o ../../sub_proc.o
+gcc -mthreads -Wall -gdwarf-2 -g3 %OPT% -I.. -I. -I../include -I../.. -DWINDOWS32 -c w32err.c -o ../../w32err.o
+:BuildEnd
+
+@echo off
+rem Copyright (C) 1996-2014 Free Software Foundation, Inc.
+rem This file is part of GNU Make.
+rem
+rem GNU Make is free software; you can redistribute it and/or modify it under
+rem the terms of the GNU General Public License as published by the Free
+rem Software Foundation; either version 3 of the License, or (at your option)
+rem any later version.
+rem
+rem GNU Make is distributed in the hope that it will be useful, but WITHOUT
+rem ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+rem FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for.
+rem more details.
+rem
+rem You should have received a copy of the GNU General Public License along
+rem with this program. If not, see <http://www.gnu.org/licenses/>.
diff --git a/w32/subproc/misc.c b/w32/subproc/misc.c new file mode 100644 index 0000000..3f3bdf8 --- /dev/null +++ b/w32/subproc/misc.c @@ -0,0 +1,83 @@ +/* Process handling for Windows +Copyright (C) 1996-2014 Free Software Foundation, Inc. +This file is part of GNU Make. + +GNU Make is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 3 of the License, or (at your option) any later +version. + +GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR +A PARTICULAR PURPOSE. See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License along with +this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include <config.h> +#include <stddef.h> +#include <stdlib.h> +#include <string.h> +#include <windows.h> +#include "proc.h" + + +/* + * Description: Convert a NULL string terminated UNIX environment block to + * an environment block suitable for a windows32 system call + * + * Returns: TRUE= success, FALSE=fail + * + * Notes/Dependencies: the environment block is sorted in case-insensitive + * order, is double-null terminated, and is a char *, not a char ** + */ +int _cdecl compare(const void *a1, const void *a2) +{ + return _stricoll(*((char**)a1),*((char**)a2)); +} +bool_t +arr2envblk(char **arr, char **envblk_out, int *envsize_needed) +{ + char **tmp; + int size_needed; + int arrcnt; + char *ptr; + + arrcnt = 0; + while (arr[arrcnt]) { + arrcnt++; + } + + tmp = (char**) calloc(arrcnt + 1, sizeof(char *)); + if (!tmp) { + return FALSE; + } + + arrcnt = 0; + size_needed = *envsize_needed = 0; + while (arr[arrcnt]) { + tmp[arrcnt] = arr[arrcnt]; + size_needed += strlen(arr[arrcnt]) + 1; + arrcnt++; + } + size_needed++; + *envsize_needed = size_needed; + + qsort((void *) tmp, (size_t) arrcnt, sizeof (char*), compare); + + ptr = *envblk_out = calloc(size_needed, 1); + if (!ptr) { + free(tmp); + return FALSE; + } + + arrcnt = 0; + while (tmp[arrcnt]) { + strcpy(ptr, tmp[arrcnt]); + ptr += strlen(tmp[arrcnt]) + 1; + arrcnt++; + } + + free(tmp); + return TRUE; +} diff --git a/w32/subproc/proc.h b/w32/subproc/proc.h new file mode 100644 index 0000000..1e4054c --- /dev/null +++ b/w32/subproc/proc.h @@ -0,0 +1,29 @@ +/* Definitions for Windows +Copyright (C) 1996-2014 Free Software Foundation, Inc. +This file is part of GNU Make. + +GNU Make is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 3 of the License, or (at your option) any later +version. + +GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR +A PARTICULAR PURPOSE. See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License along with +this program. If not, see <http://www.gnu.org/licenses/>. */ + +#ifndef _PROC_H +#define _PROC_H + +typedef int bool_t; + +#define E_SCALL 101 +#define E_IO 102 +#define E_NO_MEM 103 +#define E_FORK 104 + +extern bool_t arr2envblk(char **arr, char **envblk_out, int *envsize_needed); + +#endif diff --git a/w32/subproc/sub_proc.c b/w32/subproc/sub_proc.c new file mode 100644 index 0000000..5496c7e --- /dev/null +++ b/w32/subproc/sub_proc.c @@ -0,0 +1,1561 @@ +/* Process handling for Windows. +Copyright (C) 1996-2014 Free Software Foundation, Inc. +This file is part of GNU Make. + +GNU Make is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 3 of the License, or (at your option) any later +version. + +GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR +A PARTICULAR PURPOSE. See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License along with +this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include <config.h> +#include <stdlib.h> +#include <stdio.h> +#include <io.h> /* for _get_osfhandle */ +#ifdef _MSC_VER +# include <stddef.h> /* for intptr_t */ +#else +# include <stdint.h> +#endif +#include <string.h> +#include <process.h> /* for msvc _beginthreadex, _endthreadex */ +#include <signal.h> +#include <windows.h> + +#include "makeint.h" +#include "filedef.h" +#include "variable.h" +#include "sub_proc.h" +#include "proc.h" +#include "w32err.h" +#include "debug.h" + +static char *make_command_line(char *shell_name, char *exec_path, char **argv); + +typedef struct sub_process_t { + intptr_t sv_stdin[2]; + intptr_t sv_stdout[2]; + intptr_t sv_stderr[2]; + int using_pipes; + char *inp; + DWORD incnt; + char * volatile outp; + volatile DWORD outcnt; + char * volatile errp; + volatile DWORD errcnt; + pid_t pid; + int exit_code; + int signal; + long last_err; + long lerrno; +} sub_process; + +/* keep track of children so we can implement a waitpid-like routine */ +static sub_process *proc_array[MAXIMUM_WAIT_OBJECTS]; +static int proc_index = 0; +static int fake_exits_pending = 0; + +/* Windows jobserver implementation variables */ +static char jobserver_semaphore_name[MAX_PATH + 1]; +static HANDLE jobserver_semaphore = NULL; + +/* Open existing jobserver semaphore */ +int open_jobserver_semaphore(const char* name) +{ + jobserver_semaphore = OpenSemaphore( + SEMAPHORE_ALL_ACCESS, // Semaphore access setting + FALSE, // Child processes DON'T inherit + name); // Semaphore name + + if (jobserver_semaphore == NULL) + return 0; + + return 1; +} + +/* Create new jobserver semaphore */ +int create_jobserver_semaphore(int tokens) +{ + sprintf(jobserver_semaphore_name, "gmake_semaphore_%d", _getpid()); + + jobserver_semaphore = CreateSemaphore( + NULL, // Use default security descriptor + tokens, // Initial count + tokens, // Maximum count + jobserver_semaphore_name); // Semaphore name + + if (jobserver_semaphore == NULL) + return 0; + + return 1; +} + +/* Close jobserver semaphore */ +void free_jobserver_semaphore() +{ + if (jobserver_semaphore != NULL) + { + CloseHandle(jobserver_semaphore); + jobserver_semaphore = NULL; + } +} + +/* Decrement semaphore count */ +int acquire_jobserver_semaphore() +{ + DWORD dwEvent = WaitForSingleObject( + jobserver_semaphore, // Handle to semaphore + 0); // DON'T wait on semaphore + + return (dwEvent == WAIT_OBJECT_0); +} + +/* Increment semaphore count */ +int release_jobserver_semaphore() +{ + BOOL bResult = ReleaseSemaphore( + jobserver_semaphore, // handle to semaphore + 1, // increase count by one + NULL); // not interested in previous count + + return (bResult); +} + +int has_jobserver_semaphore() +{ + return (jobserver_semaphore != NULL); +} + +char* get_jobserver_semaphore_name() +{ + return (jobserver_semaphore_name); +} + +/* Wait for either the jobserver semaphore to become signalled or one of our + * child processes to terminate. + */ +int wait_for_semaphore_or_child_process() +{ + HANDLE handles[MAXIMUM_WAIT_OBJECTS]; + DWORD dwHandleCount = 1; + DWORD dwEvent; + int i; + + /* Add jobserver semaphore to first slot. */ + handles[0] = jobserver_semaphore; + + /* Build array of handles to wait for */ + for (i = 0; i < proc_index; i++) + { + /* Don't wait on child processes that have already finished */ + if (fake_exits_pending && proc_array[i]->exit_code) + continue; + + handles[dwHandleCount++] = (HANDLE) proc_array[i]->pid; + } + + dwEvent = WaitForMultipleObjects( + dwHandleCount, // number of objects in array + handles, // array of objects + FALSE, // wait for any object + INFINITE); // wait until object is signalled + + switch(dwEvent) + { + case WAIT_FAILED: + return -1; + + case WAIT_OBJECT_0: + /* Indicate that the semaphore was signalled */ + return 1; + + default: + /* Assume that one or more of the child processes terminated. */ + return 0; + } +} + +/* + * When a process has been waited for, adjust the wait state + * array so that we don't wait for it again + */ +static void +process_adjust_wait_state(sub_process* pproc) +{ + int i; + + if (!proc_index) + return; + + for (i = 0; i < proc_index; i++) + if (proc_array[i]->pid == pproc->pid) + break; + + if (i < proc_index) { + proc_index--; + if (i != proc_index) + memmove(&proc_array[i], &proc_array[i+1], + (proc_index-i) * sizeof(sub_process*)); + proc_array[proc_index] = NULL; + } +} + +/* + * Waits for any of the registered child processes to finish. + */ +static sub_process * +process_wait_for_any_private(int block, DWORD* pdwWaitStatus) +{ + HANDLE handles[MAXIMUM_WAIT_OBJECTS]; + DWORD retval, which; + int i; + + if (!proc_index) + return NULL; + + /* build array of handles to wait for */ + for (i = 0; i < proc_index; i++) { + handles[i] = (HANDLE) proc_array[i]->pid; + + if (fake_exits_pending && proc_array[i]->exit_code) + break; + } + + /* wait for someone to exit */ + if (!fake_exits_pending) { + retval = WaitForMultipleObjects(proc_index, handles, FALSE, (block ? INFINITE : 0)); + which = retval - WAIT_OBJECT_0; + } else { + fake_exits_pending--; + retval = !WAIT_FAILED; + which = i; + } + + /* If the pointer is not NULL, set the wait status result variable. */ + if (pdwWaitStatus) + *pdwWaitStatus = retval; + + /* return pointer to process */ + if ((retval == WAIT_TIMEOUT) || (retval == WAIT_FAILED)) { + return NULL; + } + else { + sub_process* pproc = proc_array[which]; + process_adjust_wait_state(pproc); + return pproc; + } +} + +/* + * Terminate a process. + */ +BOOL +process_kill(HANDLE proc, int signal) +{ + sub_process* pproc = (sub_process*) proc; + pproc->signal = signal; + return (TerminateProcess((HANDLE) pproc->pid, signal)); +} + +/* + * Use this function to register processes you wish to wait for by + * calling process_file_io(NULL) or process_wait_any(). This must be done + * because it is possible for callers of this library to reuse the same + * handle for multiple processes launches :-( + */ +void +process_register(HANDLE proc) +{ + if (proc_index < MAXIMUM_WAIT_OBJECTS) + proc_array[proc_index++] = (sub_process *) proc; +} + +/* + * Return the number of processes that we are still waiting for. + */ +int +process_used_slots(void) +{ + return proc_index; +} + +/* + * Public function which works kind of like waitpid(). Wait for any + * of the children to die and return results. To call this function, + * you must do 1 of things: + * + * x = process_easy(...); + * + * or + * + * x = process_init_fd(); + * process_register(x); + * + * or + * + * x = process_init(); + * process_register(x); + * + * You must NOT then call process_pipe_io() because this function is + * not capable of handling automatic notification of any child + * death. + */ + +HANDLE +process_wait_for_any(int block, DWORD* pdwWaitStatus) +{ + sub_process* pproc = process_wait_for_any_private(block, pdwWaitStatus); + + if (!pproc) + return NULL; + else { + /* + * Ouch! can't tell caller if this fails directly. Caller + * will have to use process_last_err() + */ + (void) process_file_io(pproc); + return ((HANDLE) pproc); + } +} + +long +process_signal(HANDLE proc) +{ + if (proc == INVALID_HANDLE_VALUE) return 0; + return (((sub_process *)proc)->signal); +} + +long +process_last_err(HANDLE proc) +{ + if (proc == INVALID_HANDLE_VALUE) return ERROR_INVALID_HANDLE; + return (((sub_process *)proc)->last_err); +} + +long +process_exit_code(HANDLE proc) +{ + if (proc == INVALID_HANDLE_VALUE) return EXIT_FAILURE; + return (((sub_process *)proc)->exit_code); +} + +void +process_noinherit(int fd) +{ + HANDLE fh = (HANDLE)_get_osfhandle(fd); + + if (fh && fh != INVALID_HANDLE_VALUE) + SetHandleInformation(fh, HANDLE_FLAG_INHERIT, 0); +} + +/* +2006-02: +All the following functions are currently unused. +All of them would crash gmake if called with argument INVALID_HANDLE_VALUE. +Hence whoever wants to use one of this functions must invent and implement +a reasonable error handling for this function. + +char * +process_outbuf(HANDLE proc) +{ + return (((sub_process *)proc)->outp); +} + +char * +process_errbuf(HANDLE proc) +{ + return (((sub_process *)proc)->errp); +} + +int +process_outcnt(HANDLE proc) +{ + return (((sub_process *)proc)->outcnt); +} + +int +process_errcnt(HANDLE proc) +{ + return (((sub_process *)proc)->errcnt); +} + +void +process_pipes(HANDLE proc, int pipes[3]) +{ + pipes[0] = ((sub_process *)proc)->sv_stdin[0]; + pipes[1] = ((sub_process *)proc)->sv_stdout[0]; + pipes[2] = ((sub_process *)proc)->sv_stderr[0]; + return; +} +*/ + + HANDLE +process_init() +{ + sub_process *pproc; + /* + * open file descriptors for attaching stdin/stdout/sterr + */ + HANDLE stdin_pipes[2]; + HANDLE stdout_pipes[2]; + HANDLE stderr_pipes[2]; + SECURITY_ATTRIBUTES inherit; + BYTE sd[SECURITY_DESCRIPTOR_MIN_LENGTH]; + + pproc = malloc(sizeof(*pproc)); + memset(pproc, 0, sizeof(*pproc)); + + /* We can't use NULL for lpSecurityDescriptor because that + uses the default security descriptor of the calling process. + Instead we use a security descriptor with no DACL. This + allows nonrestricted access to the associated objects. */ + + if (!InitializeSecurityDescriptor((PSECURITY_DESCRIPTOR)(&sd), + SECURITY_DESCRIPTOR_REVISION)) { + pproc->last_err = GetLastError(); + pproc->lerrno = E_SCALL; + return((HANDLE)pproc); + } + + inherit.nLength = sizeof(inherit); + inherit.lpSecurityDescriptor = (PSECURITY_DESCRIPTOR)(&sd); + inherit.bInheritHandle = TRUE; + + // By convention, parent gets pipe[0], and child gets pipe[1] + // This means the READ side of stdin pipe goes into pipe[1] + // and the WRITE side of the stdout and stderr pipes go into pipe[1] + if (CreatePipe( &stdin_pipes[1], &stdin_pipes[0], &inherit, 0) == FALSE || + CreatePipe( &stdout_pipes[0], &stdout_pipes[1], &inherit, 0) == FALSE || + CreatePipe( &stderr_pipes[0], &stderr_pipes[1], &inherit, 0) == FALSE) { + + pproc->last_err = GetLastError(); + pproc->lerrno = E_SCALL; + return((HANDLE)pproc); + } + + // + // Mark the parent sides of the pipes as non-inheritable + // + if (SetHandleInformation(stdin_pipes[0], + HANDLE_FLAG_INHERIT, 0) == FALSE || + SetHandleInformation(stdout_pipes[0], + HANDLE_FLAG_INHERIT, 0) == FALSE || + SetHandleInformation(stderr_pipes[0], + HANDLE_FLAG_INHERIT, 0) == FALSE) { + + pproc->last_err = GetLastError(); + pproc->lerrno = E_SCALL; + return((HANDLE)pproc); + } + pproc->sv_stdin[0] = (intptr_t) stdin_pipes[0]; + pproc->sv_stdin[1] = (intptr_t) stdin_pipes[1]; + pproc->sv_stdout[0] = (intptr_t) stdout_pipes[0]; + pproc->sv_stdout[1] = (intptr_t) stdout_pipes[1]; + pproc->sv_stderr[0] = (intptr_t) stderr_pipes[0]; + pproc->sv_stderr[1] = (intptr_t) stderr_pipes[1]; + + pproc->using_pipes = 1; + + pproc->lerrno = 0; + + return((HANDLE)pproc); +} + + + HANDLE +process_init_fd(HANDLE stdinh, HANDLE stdouth, HANDLE stderrh) +{ + sub_process *pproc; + + pproc = malloc(sizeof(*pproc)); + if (pproc) { + memset(pproc, 0, sizeof(*pproc)); + + /* + * Just pass the provided file handles to the 'child + * side' of the pipe, bypassing pipes altogether. + */ + pproc->sv_stdin[1] = (intptr_t) stdinh; + pproc->sv_stdout[1] = (intptr_t) stdouth; + pproc->sv_stderr[1] = (intptr_t) stderrh; + + pproc->last_err = pproc->lerrno = 0; + } + + return((HANDLE)pproc); +} + + +static HANDLE +find_file(const char *exec_path, const char *path_var, + char *full_fname, DWORD full_len) +{ + HANDLE exec_handle; + char *fname; + char *ext; + DWORD req_len; + int i; + static const char *extensions[] = + /* Should .com come before no-extension case? */ + { ".exe", ".cmd", ".bat", "", ".com", NULL }; + + fname = xmalloc(strlen(exec_path) + 5); + strcpy(fname, exec_path); + ext = fname + strlen(fname); + + for (i = 0; extensions[i]; i++) { + strcpy(ext, extensions[i]); + if (((req_len = SearchPath (path_var, fname, NULL, full_len, + full_fname, NULL)) > 0 + /* For compatibility with previous code, which + used OpenFile, and with Windows operation in + general, also look in various default + locations, such as Windows directory and + Windows System directory. Warning: this also + searches PATH in the Make's environment, which + might not be what the Makefile wants, but it + seems to be OK as a fallback, after the + previous SearchPath failed to find on child's + PATH. */ + || (req_len = SearchPath (NULL, fname, NULL, full_len, + full_fname, NULL)) > 0) + && req_len <= full_len + && (exec_handle = + CreateFile(full_fname, + GENERIC_READ, + FILE_SHARE_READ | FILE_SHARE_WRITE, + NULL, + OPEN_EXISTING, + FILE_ATTRIBUTE_NORMAL, + NULL)) != INVALID_HANDLE_VALUE) { + free(fname); + return(exec_handle); + } + } + + free(fname); + return INVALID_HANDLE_VALUE; +} + +/* + * Return non-zero of FNAME specifies a batch file and its name + * includes embedded whitespace. + */ + +static int +batch_file_with_spaces(const char *fname) +{ + size_t fnlen = strlen(fname); + + return (fnlen > 4 + && (_strnicmp(fname + fnlen - 4, ".bat", 4) == 0 + || _strnicmp(fname + fnlen - 4, ".cmd", 4) == 0) + /* The set of characters in the 2nd arg to strpbrk + should be the same one used by make_command_line + below to decide whether an argv[] element needs + quoting. */ + && strpbrk(fname, " \t") != NULL); +} + + +/* + * Description: Create the child process to be helped + * + * Returns: success <=> 0 + * + * Notes/Dependencies: + */ +long +process_begin( + HANDLE proc, + char **argv, + char **envp, + char *exec_path, + char *as_user) +{ + sub_process *pproc = (sub_process *)proc; + char *shell_name = 0; + int file_not_found=0; + HANDLE exec_handle; + char exec_fname[MAX_PATH]; + const char *path_var = NULL; + char **ep; + char buf[MAX_PATH]; + DWORD bytes_returned; + DWORD flags; + char *command_line; + STARTUPINFO startInfo; + PROCESS_INFORMATION procInfo; + char *envblk=NULL; + int envsize_needed = 0; + int pass_null_exec_path = 0; + + /* + * Shell script detection... if the exec_path starts with #! then + * we want to exec shell-script-name exec-path, not just exec-path + * NT doesn't recognize #!/bin/sh or #!/etc/Tivoli/bin/perl. We do not + * hard-code the path to the shell or perl or whatever: Instead, we + * assume it's in the path somewhere (generally, the NT tools + * bin directory) + */ + + /* Use the Makefile's value of PATH to look for the program to + execute, because it could be different from Make's PATH + (e.g., if the target sets its own value. */ + if (envp) + for (ep = envp; *ep; ep++) { + if (strncmp (*ep, "PATH=", 5) == 0 + || strncmp (*ep, "Path=", 5) == 0) { + path_var = *ep + 5; + break; + } + } + exec_handle = find_file(exec_path, path_var, + exec_fname, sizeof(exec_fname)); + + /* + * If we couldn't open the file, just assume that Windows will be + * somehow able to find and execute it. If the first character + * of the command is '/', assume they set SHELL to a Unixy shell + * that have some magic mounts known only to it, and run the whole + * command via $SHELL -c "COMMAND" instead. + */ + if (exec_handle == INVALID_HANDLE_VALUE) { + if (exec_path[0] == '/') { + char *new_argv0; + char **argvi = argv; + int arglen = 0; + + strcpy(buf, variable_expand ("$(SHELL)")); + shell_name = &buf[0]; + strcpy(exec_fname, "-c"); + /* Construct a single command string in argv[0]. */ + while (*argvi) { + arglen += strlen(*argvi) + 1; + argvi++; + } + new_argv0 = xmalloc(arglen + 1); + new_argv0[0] = '\0'; + for (argvi = argv; *argvi; argvi++) { + strcat(new_argv0, *argvi); + strcat(new_argv0, " "); + } + /* Remove the extra blank at the end. */ + new_argv0[arglen-1] = '\0'; + free(argv[0]); + argv[0] = new_argv0; + argv[1] = NULL; + } + else + file_not_found++; + } + else { + /* Attempt to read the first line of the file */ + if (ReadFile( exec_handle, + buf, sizeof(buf) - 1, /* leave room for trailing NULL */ + &bytes_returned, 0) == FALSE || bytes_returned < 2) { + + pproc->last_err = GetLastError(); + pproc->lerrno = E_IO; + CloseHandle(exec_handle); + return(-1); + } + if (buf[0] == '#' && buf[1] == '!') { + /* + * This is a shell script... Change the command line from + * exec_path args to shell_name exec_path args + */ + char *p; + + /* Make sure buf is NULL terminated */ + buf[bytes_returned] = 0; + /* + * Depending on the file system type, etc. the first line + * of the shell script may end with newline or newline-carriage-return + * Whatever it ends with, cut it off. + */ + p= strchr(buf, '\n'); + if (p) + *p = 0; + p = strchr(buf, '\r'); + if (p) + *p = 0; + + /* + * Find base name of shell + */ + shell_name = strrchr( buf, '/'); + if (shell_name) { + shell_name++; + } else { + shell_name = &buf[2];/* skipping "#!" */ + } + + } + CloseHandle(exec_handle); + } + + flags = 0; + + if (file_not_found) + command_line = make_command_line( shell_name, exec_path, argv); + else { + /* If exec_fname includes whitespace, CreateProcess + behaves erratically and unreliably, and often fails + if argv[0] also includes whitespace (and thus will + be quoted by make_command_line below). So in that + case, we don't pass exec_fname as the 1st arg to + CreateProcess, but instead replace argv[0] with + exec_fname (to keep its leading directories and + extension as found by find_file), and pass NULL to + CreateProcess as its 1st arg. This works around + the bugs in CreateProcess, which are probably + caused by its passing the command to cmd.exe with + some incorrect quoting. */ + if (!shell_name + && batch_file_with_spaces(exec_fname) + && _stricmp(exec_path, argv[0]) == 0) { + pass_null_exec_path = 1; + free (argv[0]); + argv[0] = xstrdup(exec_fname); + } + command_line = make_command_line( shell_name, exec_fname, argv); + } + + if ( command_line == NULL ) { + pproc->last_err = 0; + pproc->lerrno = E_NO_MEM; + return(-1); + } + + if (envp) { + if (arr2envblk(envp, &envblk, &envsize_needed) == FALSE) { + pproc->last_err = 0; + pproc->lerrno = E_NO_MEM; + free( command_line ); + if (pproc->last_err == ERROR_INVALID_PARAMETER + && envsize_needed > 32*1024) { + fprintf (stderr, "CreateProcess failed, probably because environment is too large (%d bytes).\n", + envsize_needed); + } + return(-1); + } + } + + if (shell_name || file_not_found || pass_null_exec_path) { + exec_path = 0; /* Search for the program in %Path% */ + } else { + exec_path = exec_fname; + } + + /* + * Set up inherited stdin, stdout, stderr for child + */ + GetStartupInfo(&startInfo); + startInfo.dwFlags = STARTF_USESTDHANDLES; + startInfo.lpReserved = 0; + startInfo.cbReserved2 = 0; + startInfo.lpReserved2 = 0; + startInfo.hStdInput = (HANDLE)pproc->sv_stdin[1]; + startInfo.hStdOutput = (HANDLE)pproc->sv_stdout[1]; + startInfo.hStdError = (HANDLE)pproc->sv_stderr[1]; + + if (as_user) { + free(envblk); + return -1; + } else { + DB (DB_JOBS, ("CreateProcess(%s,%s,...)\n", + exec_path ? exec_path : "NULL", + command_line ? command_line : "NULL")); + if (CreateProcess( + exec_path, + command_line, + NULL, + 0, /* default security attributes for thread */ + TRUE, /* inherit handles (e.g. helper pipes, oserv socket) */ + flags, + envblk, + 0, /* default starting directory */ + &startInfo, + &procInfo) == FALSE) { + + pproc->last_err = GetLastError(); + pproc->lerrno = E_FORK; + fprintf(stderr, "process_begin: CreateProcess(%s, %s, ...) failed.\n", + exec_path ? exec_path : "NULL", command_line); + free(envblk); + free( command_line ); + return(-1); + } + } + + pproc->pid = (pid_t)procInfo.hProcess; + /* Close the thread handle -- we'll just watch the process */ + CloseHandle(procInfo.hThread); + + /* Close the halves of the pipes we don't need */ + if ((HANDLE)pproc->sv_stdin[1] != INVALID_HANDLE_VALUE) + CloseHandle((HANDLE)pproc->sv_stdin[1]); + if ((HANDLE)pproc->sv_stdout[1] != INVALID_HANDLE_VALUE) + CloseHandle((HANDLE)pproc->sv_stdout[1]); + if ((HANDLE)pproc->sv_stderr[1] != INVALID_HANDLE_VALUE) + CloseHandle((HANDLE)pproc->sv_stderr[1]); + pproc->sv_stdin[1] = 0; + pproc->sv_stdout[1] = 0; + pproc->sv_stderr[1] = 0; + + free( command_line ); + free(envblk); + pproc->lerrno=0; + return 0; +} + + + +#if 0 /* unused */ +static DWORD +proc_stdin_thread(sub_process *pproc) +{ + DWORD in_done; + for (;;) { + if (WriteFile( (HANDLE) pproc->sv_stdin[0], pproc->inp, pproc->incnt, + &in_done, NULL) == FALSE) + _endthreadex(0); + // This if should never be true for anonymous pipes, but gives + // us a chance to change I/O mechanisms later + if (in_done < pproc->incnt) { + pproc->incnt -= in_done; + pproc->inp += in_done; + } else { + _endthreadex(0); + } + } + return 0; // for compiler warnings only.. not reached +} + +static DWORD +proc_stdout_thread(sub_process *pproc) +{ + DWORD bufsize = 1024; + char c; + DWORD nread; + pproc->outp = malloc(bufsize); + if (pproc->outp == NULL) + _endthreadex(0); + pproc->outcnt = 0; + + for (;;) { + if (ReadFile( (HANDLE)pproc->sv_stdout[0], &c, 1, &nread, NULL) + == FALSE) { +/* map_windows32_error_to_string(GetLastError());*/ + _endthreadex(0); + } + if (nread == 0) + _endthreadex(0); + if (pproc->outcnt + nread > bufsize) { + bufsize += nread + 512; + pproc->outp = realloc(pproc->outp, bufsize); + if (pproc->outp == NULL) { + pproc->outcnt = 0; + _endthreadex(0); + } + } + pproc->outp[pproc->outcnt++] = c; + } + return 0; +} + +static DWORD +proc_stderr_thread(sub_process *pproc) +{ + DWORD bufsize = 1024; + char c; + DWORD nread; + pproc->errp = malloc(bufsize); + if (pproc->errp == NULL) + _endthreadex(0); + pproc->errcnt = 0; + + for (;;) { + if (ReadFile( (HANDLE)pproc->sv_stderr[0], &c, 1, &nread, NULL) == FALSE) { + map_windows32_error_to_string(GetLastError()); + _endthreadex(0); + } + if (nread == 0) + _endthreadex(0); + if (pproc->errcnt + nread > bufsize) { + bufsize += nread + 512; + pproc->errp = realloc(pproc->errp, bufsize); + if (pproc->errp == NULL) { + pproc->errcnt = 0; + _endthreadex(0); + } + } + pproc->errp[pproc->errcnt++] = c; + } + return 0; +} + + +/* + * Purpose: collects output from child process and returns results + * + * Description: + * + * Returns: + * + * Notes/Dependencies: + */ + long +process_pipe_io( + HANDLE proc, + char *stdin_data, + int stdin_data_len) +{ + sub_process *pproc = (sub_process *)proc; + bool_t stdin_eof = FALSE, stdout_eof = FALSE, stderr_eof = FALSE; + HANDLE childhand = (HANDLE) pproc->pid; + HANDLE tStdin = NULL, tStdout = NULL, tStderr = NULL; + unsigned int dwStdin, dwStdout, dwStderr; + HANDLE wait_list[4]; + DWORD wait_count; + DWORD wait_return; + HANDLE ready_hand; + bool_t child_dead = FALSE; + BOOL GetExitCodeResult; + + /* + * Create stdin thread, if needed + */ + pproc->inp = stdin_data; + pproc->incnt = stdin_data_len; + if (!pproc->inp) { + stdin_eof = TRUE; + CloseHandle((HANDLE)pproc->sv_stdin[0]); + pproc->sv_stdin[0] = 0; + } else { + tStdin = (HANDLE) _beginthreadex( 0, 1024, + (unsigned (__stdcall *) (void *))proc_stdin_thread, + pproc, 0, &dwStdin); + if (tStdin == 0) { + pproc->last_err = GetLastError(); + pproc->lerrno = E_SCALL; + goto done; + } + } + + /* + * Assume child will produce stdout and stderr + */ + tStdout = (HANDLE) _beginthreadex( 0, 1024, + (unsigned (__stdcall *) (void *))proc_stdout_thread, pproc, 0, + &dwStdout); + tStderr = (HANDLE) _beginthreadex( 0, 1024, + (unsigned (__stdcall *) (void *))proc_stderr_thread, pproc, 0, + &dwStderr); + + if (tStdout == 0 || tStderr == 0) { + + pproc->last_err = GetLastError(); + pproc->lerrno = E_SCALL; + goto done; + } + + + /* + * Wait for all I/O to finish and for the child process to exit + */ + + while (!stdin_eof || !stdout_eof || !stderr_eof || !child_dead) { + wait_count = 0; + if (!stdin_eof) { + wait_list[wait_count++] = tStdin; + } + if (!stdout_eof) { + wait_list[wait_count++] = tStdout; + } + if (!stderr_eof) { + wait_list[wait_count++] = tStderr; + } + if (!child_dead) { + wait_list[wait_count++] = childhand; + } + + wait_return = WaitForMultipleObjects(wait_count, wait_list, + FALSE, /* don't wait for all: one ready will do */ + child_dead? 1000 :INFINITE); /* after the child dies, subthreads have + one second to collect all remaining output */ + + if (wait_return == WAIT_FAILED) { +/* map_windows32_error_to_string(GetLastError());*/ + pproc->last_err = GetLastError(); + pproc->lerrno = E_SCALL; + goto done; + } + + ready_hand = wait_list[wait_return - WAIT_OBJECT_0]; + + if (ready_hand == tStdin) { + CloseHandle((HANDLE)pproc->sv_stdin[0]); + pproc->sv_stdin[0] = 0; + CloseHandle(tStdin); + tStdin = 0; + stdin_eof = TRUE; + + } else if (ready_hand == tStdout) { + + CloseHandle((HANDLE)pproc->sv_stdout[0]); + pproc->sv_stdout[0] = 0; + CloseHandle(tStdout); + tStdout = 0; + stdout_eof = TRUE; + + } else if (ready_hand == tStderr) { + + CloseHandle((HANDLE)pproc->sv_stderr[0]); + pproc->sv_stderr[0] = 0; + CloseHandle(tStderr); + tStderr = 0; + stderr_eof = TRUE; + + } else if (ready_hand == childhand) { + + DWORD ierr; + GetExitCodeResult = GetExitCodeProcess(childhand, &ierr); + if (ierr == CONTROL_C_EXIT) { + pproc->signal = SIGINT; + } else { + pproc->exit_code = ierr; + } + if (GetExitCodeResult == FALSE) { + pproc->last_err = GetLastError(); + pproc->lerrno = E_SCALL; + goto done; + } + child_dead = TRUE; + + } else { + + /* ?? Got back a handle we didn't query ?? */ + pproc->last_err = 0; + pproc->lerrno = E_FAIL; + goto done; + } + } + + done: + if (tStdin != 0) + CloseHandle(tStdin); + if (tStdout != 0) + CloseHandle(tStdout); + if (tStderr != 0) + CloseHandle(tStderr); + + if (pproc->lerrno) + return(-1); + else + return(0); + +} +#endif /* unused */ + +/* + * Purpose: collects output from child process and returns results + * + * Description: + * + * Returns: + * + * Notes/Dependencies: + */ + long +process_file_io( + HANDLE proc) +{ + sub_process *pproc; + HANDLE childhand; + DWORD wait_return; + BOOL GetExitCodeResult; + DWORD ierr; + + if (proc == NULL) + pproc = process_wait_for_any_private(1, 0); + else + pproc = (sub_process *)proc; + + /* some sort of internal error */ + if (!pproc) + return -1; + + childhand = (HANDLE) pproc->pid; + + /* + * This function is poorly named, and could also be used just to wait + * for child death if you're doing your own pipe I/O. If that is + * the case, close the pipe handles here. + */ + if (pproc->sv_stdin[0]) { + CloseHandle((HANDLE)pproc->sv_stdin[0]); + pproc->sv_stdin[0] = 0; + } + if (pproc->sv_stdout[0]) { + CloseHandle((HANDLE)pproc->sv_stdout[0]); + pproc->sv_stdout[0] = 0; + } + if (pproc->sv_stderr[0]) { + CloseHandle((HANDLE)pproc->sv_stderr[0]); + pproc->sv_stderr[0] = 0; + } + + /* + * Wait for the child process to exit + */ + + wait_return = WaitForSingleObject(childhand, INFINITE); + + if (wait_return != WAIT_OBJECT_0) { +/* map_windows32_error_to_string(GetLastError());*/ + pproc->last_err = GetLastError(); + pproc->lerrno = E_SCALL; + goto done2; + } + + GetExitCodeResult = GetExitCodeProcess(childhand, &ierr); + if (ierr == CONTROL_C_EXIT) { + pproc->signal = SIGINT; + } else { + pproc->exit_code = ierr; + } + if (GetExitCodeResult == FALSE) { + pproc->last_err = GetLastError(); + pproc->lerrno = E_SCALL; + } + +done2: + if (pproc->lerrno) + return(-1); + else + return(0); + +} + +/* + * Description: Clean up any leftover handles, etc. It is up to the + * caller to manage and free the input, output, and stderr buffers. + */ + void +process_cleanup( + HANDLE proc) +{ + sub_process *pproc = (sub_process *)proc; + int i; + + if (pproc->using_pipes) { + for (i= 0; i <= 1; i++) { + if ((HANDLE)pproc->sv_stdin[i] + && (HANDLE)pproc->sv_stdin[i] != INVALID_HANDLE_VALUE) + CloseHandle((HANDLE)pproc->sv_stdin[i]); + if ((HANDLE)pproc->sv_stdout[i] + && (HANDLE)pproc->sv_stdout[i] != INVALID_HANDLE_VALUE) + CloseHandle((HANDLE)pproc->sv_stdout[i]); + if ((HANDLE)pproc->sv_stderr[i] + && (HANDLE)pproc->sv_stderr[i] != INVALID_HANDLE_VALUE) + CloseHandle((HANDLE)pproc->sv_stderr[i]); + } + } + if ((HANDLE)pproc->pid) + CloseHandle((HANDLE)pproc->pid); + + free(pproc); +} + + +/* + * Description: + * Create a command line buffer to pass to CreateProcess + * + * Returns: the buffer or NULL for failure + * Shell case: sh_name a:/full/path/to/script argv[1] argv[2] ... + * Otherwise: argv[0] argv[1] argv[2] ... + * + * Notes/Dependencies: + * CreateProcess does not take an argv, so this command creates a + * command line for the executable. + */ + +static char * +make_command_line( char *shell_name, char *full_exec_path, char **argv) +{ + int argc = 0; + char** argvi; + int* enclose_in_quotes = NULL; + int* enclose_in_quotes_i; + unsigned int bytes_required = 0; + char* command_line; + char* command_line_i; + int cygwin_mode = 0; /* HAVE_CYGWIN_SHELL */ + int have_sh = 0; /* HAVE_CYGWIN_SHELL */ + +#ifdef HAVE_CYGWIN_SHELL + have_sh = (shell_name != NULL || strstr(full_exec_path, "sh.exe")); + cygwin_mode = 1; +#endif + + if (shell_name && full_exec_path) { + bytes_required + = strlen(shell_name) + 1 + strlen(full_exec_path); + /* + * Skip argv[0] if any, when shell_name is given. + * The special case of "-c" in full_exec_path means + * argv[0] is not the shell name, but the command string + * to pass to the shell. + */ + if (*argv && strcmp(full_exec_path, "-c")) argv++; + /* + * Add one for the intervening space. + */ + if (*argv) bytes_required++; + } + + argvi = argv; + while (*(argvi++)) argc++; + + if (argc) { + enclose_in_quotes = (int*) calloc(1, argc * sizeof(int)); + + if (!enclose_in_quotes) { + return NULL; + } + } + + /* We have to make one pass through each argv[i] to see if we need + * to enclose it in ", so we might as well figure out how much + * memory we'll need on the same pass. + */ + + argvi = argv; + enclose_in_quotes_i = enclose_in_quotes; + while(*argvi) { + char* p = *argvi; + unsigned int backslash_count = 0; + + /* + * We have to enclose empty arguments in ". + */ + if (!(*p)) *enclose_in_quotes_i = 1; + + while(*p) { + switch (*p) { + case '\"': + /* + * We have to insert a backslash for each " + * and each \ that precedes the ". + */ + bytes_required += (backslash_count + 1); + backslash_count = 0; + break; + +#if !defined(HAVE_MKS_SHELL) && !defined(HAVE_CYGWIN_SHELL) + case '\\': + backslash_count++; + break; +#endif + /* + * At one time we set *enclose_in_quotes_i for '*' or '?' to suppress + * wildcard expansion in programs linked with MSVC's SETARGV.OBJ so + * that argv in always equals argv out. This was removed. Say you have + * such a program named glob.exe. You enter + * glob '*' + * at the sh command prompt. Obviously the intent is to make glob do the + * wildcarding instead of sh. If we set *enclose_in_quotes_i for '*' or '?', + * then the command line that glob would see would be + * glob "*" + * and the _setargv in SETARGV.OBJ would _not_ expand the *. + */ + case ' ': + case '\t': + *enclose_in_quotes_i = 1; + /* fall through */ + + default: + backslash_count = 0; + break; + } + + /* + * Add one for each character in argv[i]. + */ + bytes_required++; + + p++; + } + + if (*enclose_in_quotes_i) { + /* + * Add one for each enclosing ", + * and one for each \ that precedes the + * closing ". + */ + bytes_required += (backslash_count + 2); + } + + /* + * Add one for the intervening space. + */ + if (*(++argvi)) bytes_required++; + enclose_in_quotes_i++; + } + + /* + * Add one for the terminating NULL. + */ + bytes_required++; + + command_line = (char*) malloc(bytes_required); + + if (!command_line) { + free(enclose_in_quotes); + return NULL; + } + + command_line_i = command_line; + + if (shell_name && full_exec_path) { + while(*shell_name) { + *(command_line_i++) = *(shell_name++); + } + + *(command_line_i++) = ' '; + + while(*full_exec_path) { + *(command_line_i++) = *(full_exec_path++); + } + + if (*argv) { + *(command_line_i++) = ' '; + } + } + + argvi = argv; + enclose_in_quotes_i = enclose_in_quotes; + + while(*argvi) { + char* p = *argvi; + unsigned int backslash_count = 0; + + if (*enclose_in_quotes_i) { + *(command_line_i++) = '\"'; + } + + while(*p) { + if (*p == '\"') { + if (cygwin_mode && have_sh) { /* HAVE_CYGWIN_SHELL */ + /* instead of a \", cygwin likes "" */ + *(command_line_i++) = '\"'; + } else { + + /* + * We have to insert a backslash for the " + * and each \ that precedes the ". + */ + backslash_count++; + + while(backslash_count) { + *(command_line_i++) = '\\'; + backslash_count--; + }; + } +#if !defined(HAVE_MKS_SHELL) && !defined(HAVE_CYGWIN_SHELL) + } else if (*p == '\\') { + backslash_count++; + } else { + backslash_count = 0; +#endif + } + + /* + * Copy the character. + */ + *(command_line_i++) = *(p++); + } + + if (*enclose_in_quotes_i) { +#if !defined(HAVE_MKS_SHELL) && !defined(HAVE_CYGWIN_SHELL) + /* + * Add one \ for each \ that precedes the + * closing ". + */ + while(backslash_count--) { + *(command_line_i++) = '\\'; + }; +#endif + *(command_line_i++) = '\"'; + } + + /* + * Append an intervening space. + */ + if (*(++argvi)) { + *(command_line_i++) = ' '; + } + + enclose_in_quotes_i++; + } + + /* + * Append the terminating NULL. + */ + *command_line_i = '\0'; + + free(enclose_in_quotes); + return command_line; +} + +/* + * Description: Given an argv and optional envp, launch the process + * using the default stdin, stdout, and stderr handles. + * Also, register process so that process_wait_for_any_private() + * can be used via process_file_io(NULL) or + * process_wait_for_any(). + * + * Returns: + * + * Notes/Dependencies: + */ +HANDLE +process_easy( + char **argv, + char **envp, + int outfd, + int errfd) +{ + HANDLE hIn = INVALID_HANDLE_VALUE; + HANDLE hOut = INVALID_HANDLE_VALUE; + HANDLE hErr = INVALID_HANDLE_VALUE; + HANDLE hProcess, tmpIn, tmpOut, tmpErr; + DWORD e; + + if (proc_index >= MAXIMUM_WAIT_OBJECTS) { + DB (DB_JOBS, ("process_easy: All process slots used up\n")); + return INVALID_HANDLE_VALUE; + } + /* Standard handles returned by GetStdHandle can be NULL or + INVALID_HANDLE_VALUE if the parent process closed them. If that + happens, we open the null device and pass its handle to + CreateProcess as the corresponding handle to inherit. */ + tmpIn = GetStdHandle(STD_INPUT_HANDLE); + if (DuplicateHandle(GetCurrentProcess(), + tmpIn, + GetCurrentProcess(), + &hIn, + 0, + TRUE, + DUPLICATE_SAME_ACCESS) == FALSE) { + if ((e = GetLastError()) == ERROR_INVALID_HANDLE) { + tmpIn = CreateFile("NUL", GENERIC_READ, + FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, + OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); + if (tmpIn != INVALID_HANDLE_VALUE + && DuplicateHandle(GetCurrentProcess(), + tmpIn, + GetCurrentProcess(), + &hIn, + 0, + TRUE, + DUPLICATE_SAME_ACCESS) == FALSE) + CloseHandle(tmpIn); + } + if (hIn == INVALID_HANDLE_VALUE) { + fprintf(stderr, "process_easy: DuplicateHandle(In) failed (e=%ld)\n", e); + return INVALID_HANDLE_VALUE; + } + } + if (outfd >= 0) + tmpOut = (HANDLE)_get_osfhandle (outfd); + else + tmpOut = GetStdHandle (STD_OUTPUT_HANDLE); + if (DuplicateHandle(GetCurrentProcess(), + tmpOut, + GetCurrentProcess(), + &hOut, + 0, + TRUE, + DUPLICATE_SAME_ACCESS) == FALSE) { + if ((e = GetLastError()) == ERROR_INVALID_HANDLE) { + tmpOut = CreateFile("NUL", GENERIC_WRITE, + FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, + OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); + if (tmpOut != INVALID_HANDLE_VALUE + && DuplicateHandle(GetCurrentProcess(), + tmpOut, + GetCurrentProcess(), + &hOut, + 0, + TRUE, + DUPLICATE_SAME_ACCESS) == FALSE) + CloseHandle(tmpOut); + } + if (hOut == INVALID_HANDLE_VALUE) { + fprintf(stderr, "process_easy: DuplicateHandle(Out) failed (e=%ld)\n", e); + return INVALID_HANDLE_VALUE; + } + } + if (errfd >= 0) + tmpErr = (HANDLE)_get_osfhandle (errfd); + else + tmpErr = GetStdHandle(STD_ERROR_HANDLE); + if (DuplicateHandle(GetCurrentProcess(), + tmpErr, + GetCurrentProcess(), + &hErr, + 0, + TRUE, + DUPLICATE_SAME_ACCESS) == FALSE) { + if ((e = GetLastError()) == ERROR_INVALID_HANDLE) { + tmpErr = CreateFile("NUL", GENERIC_WRITE, + FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, + OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); + if (tmpErr != INVALID_HANDLE_VALUE + && DuplicateHandle(GetCurrentProcess(), + tmpErr, + GetCurrentProcess(), + &hErr, + 0, + TRUE, + DUPLICATE_SAME_ACCESS) == FALSE) + CloseHandle(tmpErr); + } + if (hErr == INVALID_HANDLE_VALUE) { + fprintf(stderr, "process_easy: DuplicateHandle(Err) failed (e=%ld)\n", e); + return INVALID_HANDLE_VALUE; + } + } + + hProcess = process_init_fd(hIn, hOut, hErr); + + if (process_begin(hProcess, argv, envp, argv[0], NULL)) { + fake_exits_pending++; + /* process_begin() failed: make a note of that. */ + if (!((sub_process*) hProcess)->last_err) + ((sub_process*) hProcess)->last_err = -1; + ((sub_process*) hProcess)->exit_code = process_last_err(hProcess); + + /* close up unused handles */ + if (hIn != INVALID_HANDLE_VALUE) + CloseHandle(hIn); + if (hOut != INVALID_HANDLE_VALUE) + CloseHandle(hOut); + if (hErr != INVALID_HANDLE_VALUE) + CloseHandle(hErr); + } + + process_register(hProcess); + + return hProcess; +} diff --git a/w32/subproc/w32err.c b/w32/subproc/w32err.c new file mode 100644 index 0000000..9ff4f4c --- /dev/null +++ b/w32/subproc/w32err.c @@ -0,0 +1,85 @@ +/* Error handling for Windows +Copyright (C) 1996-2014 Free Software Foundation, Inc. +This file is part of GNU Make. + +GNU Make is free software; you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software +Foundation; either version 3 of the License, or (at your option) any later +version. + +GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR +A PARTICULAR PURPOSE. See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License along with +this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include <stdlib.h> +#include <windows.h> +#include "makeint.h" +#include "w32err.h" + +/* + * Description: the windows32 version of perror() + * + * Returns: a pointer to a static error + * + * Notes/Dependencies: I got this from + * comp.os.ms-windows.programmer.win32 + */ +const char * +map_windows32_error_to_string (DWORD ercode) { +/* + * We used to have an MSVC-specific '__declspec (thread)' qualifier + * here, with the following comment: + * + * __declspec (thread) necessary if you will use multiple threads on MSVC + * + * However, Make was never multithreaded on Windows (except when + * Ctrl-C is hit, in which case the main thread is stopped + * immediately, so it doesn't matter in this context). The functions + * on sub_proc.c that started and stopped additional threads were + * never used, and are now #ifdef'ed away. Until we need more than + * one thread, we have no problems with the following buffer being + * static. (If and when we do need it to be in thread-local storage, + * the corresponding GCC qualifier is '__thread'.) + */ + static char szMessageBuffer[128]; + /* Fill message buffer with a default message in + * case FormatMessage fails + */ + wsprintf (szMessageBuffer, "Error %ld\n", ercode); + + /* + * Special code for winsock error handling. + */ + if (ercode > WSABASEERR) { +#if 0 + HMODULE hModule = GetModuleHandle("wsock32"); + if (hModule != NULL) { + FormatMessage(FORMAT_MESSAGE_FROM_HMODULE, + hModule, + ercode, + LANG_NEUTRAL, + szMessageBuffer, + sizeof(szMessageBuffer), + NULL); + FreeLibrary(hModule); + } +#else + O (fatal, NILF, szMessageBuffer); +#endif + } else { + /* + * Default system message handling + */ + FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, + NULL, + ercode, + LANG_NEUTRAL, + szMessageBuffer, + sizeof(szMessageBuffer), + NULL); + } + return szMessageBuffer; +} |