diff options
Diffstat (limited to 'gcc-4.2.1-5666.3/libiberty/pex-djgpp.c')
| -rw-r--r-- | gcc-4.2.1-5666.3/libiberty/pex-djgpp.c | 294 |
1 files changed, 0 insertions, 294 deletions
diff --git a/gcc-4.2.1-5666.3/libiberty/pex-djgpp.c b/gcc-4.2.1-5666.3/libiberty/pex-djgpp.c deleted file mode 100644 index ac5a4f97b..000000000 --- a/gcc-4.2.1-5666.3/libiberty/pex-djgpp.c +++ /dev/null @@ -1,294 +0,0 @@ -/* Utilities to execute a program in a subprocess (possibly linked by pipes - with other subprocesses), and wait for it. DJGPP specialization. - Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2005 - Free Software Foundation, Inc. - -This file is part of the libiberty library. -Libiberty is free software; you can redistribute it and/or -modify it under the terms of the GNU Library General Public -License as published by the Free Software Foundation; either -version 2 of the License, or (at your option) any later version. - -Libiberty 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 -Library General Public License for more details. - -You should have received a copy of the GNU Library General Public -License along with libiberty; see the file COPYING.LIB. If not, -write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, -Boston, MA 02110-1301, USA. */ - -#include "pex-common.h" - -#include <stdio.h> -#include <errno.h> -#ifdef NEED_DECLARATION_ERRNO -extern int errno; -#endif -#ifdef HAVE_STDLIB_H -#include <stdlib.h> -#endif -#include <string.h> -#include <fcntl.h> -#include <unistd.h> -#include <sys/stat.h> -#include <process.h> - -/* Use ECHILD if available, otherwise use EINVAL. */ -#ifdef ECHILD -#define PWAIT_ERROR ECHILD -#else -#define PWAIT_ERROR EINVAL -#endif - -static int pex_djgpp_open_read (struct pex_obj *, const char *, int); -static int pex_djgpp_open_write (struct pex_obj *, const char *, int); -static long pex_djgpp_exec_child (struct pex_obj *, int, const char *, - char * const *, char * const *, - int, int, int, int, - const char **, int *); -static int pex_djgpp_close (struct pex_obj *, int); -static int pex_djgpp_wait (struct pex_obj *, long, int *, struct pex_time *, - int, const char **, int *); - -/* The list of functions we pass to the common routines. */ - -const struct pex_funcs funcs = -{ - pex_djgpp_open_read, - pex_djgpp_open_write, - pex_djgpp_exec_child, - pex_djgpp_close, - pex_djgpp_wait, - NULL, /* pipe */ - NULL, /* fdopenr */ - NULL, /* fdopenw */ - NULL /* cleanup */ -}; - -/* Return a newly initialized pex_obj structure. */ - -struct pex_obj * -pex_init (int flags, const char *pname, const char *tempbase) -{ - /* DJGPP does not support pipes. */ - flags &= ~ PEX_USE_PIPES; - return pex_init_common (flags, pname, tempbase, &funcs); -} - -/* Open a file for reading. */ - -static int -pex_djgpp_open_read (struct pex_obj *obj ATTRIBUTE_UNUSED, - const char *name, int binary) -{ - return open (name, O_RDONLY | (binary ? O_BINARY : O_TEXT)); -} - -/* Open a file for writing. */ - -static int -pex_djgpp_open_write (struct pex_obj *obj ATTRIBUTE_UNUSED, - const char *name, int binary) -{ - /* Note that we can't use O_EXCL here because gcc may have already - created the temporary file via make_temp_file. */ - return open (name, - (O_WRONLY | O_CREAT | O_TRUNC - | (binary ? O_BINARY : O_TEXT)), - S_IRUSR | S_IWUSR); -} - -/* Close a file. */ - -static int -pex_djgpp_close (struct pex_obj *obj ATTRIBUTE_UNUSED, int fd) -{ - return close (fd); -} - -/* Execute a child. */ - -static long -pex_djgpp_exec_child (struct pex_obj *obj, int flags, const char *executable, - char * const * argv, char * const * env, - int in, int out, int errdes, - int toclose ATTRIBUTE_UNUSED, const char **errmsg, - int *err) -{ - int org_in, org_out, org_errdes; - int status; - int *statuses; - - org_in = -1; - org_out = -1; - org_errdes = -1; - - if (in != STDIN_FILE_NO) - { - org_in = dup (STDIN_FILE_NO); - if (org_in < 0) - { - *err = errno; - *errmsg = "dup"; - return -1; - } - if (dup2 (in, STDIN_FILE_NO) < 0) - { - *err = errno; - *errmsg = "dup2"; - return -1; - } - if (close (in) < 0) - { - *err = errno; - *errmsg = "close"; - return -1; - } - } - - if (out != STDOUT_FILE_NO) - { - org_out = dup (STDOUT_FILE_NO); - if (org_out < 0) - { - *err = errno; - *errmsg = "dup"; - return -1; - } - if (dup2 (out, STDOUT_FILE_NO) < 0) - { - *err = errno; - *errmsg = "dup2"; - return -1; - } - if (close (out) < 0) - { - *err = errno; - *errmsg = "close"; - return -1; - } - } - - if (errdes != STDERR_FILE_NO - || (flags & PEX_STDERR_TO_STDOUT) != 0) - { - org_errdes = dup (STDERR_FILE_NO); - if (org_errdes < 0) - { - *err = errno; - *errmsg = "dup"; - return -1; - } - if (dup2 ((flags & PEX_STDERR_TO_STDOUT) != 0 ? STDOUT_FILE_NO : errdes, - STDERR_FILE_NO) < 0) - { - *err = errno; - *errmsg = "dup2"; - return -1; - } - if (errdes != STDERR_FILE_NO) - { - if (close (errdes) < 0) - { - *err = errno; - *errmsg = "close"; - return -1; - } - } - } - - if (env) - status = (((flags & PEX_SEARCH) != 0 ? spawnvpe : spawnve) - (P_WAIT, executable, argv, env)); - else - status = (((flags & PEX_SEARCH) != 0 ? spawnvp : spawnv) - (P_WAIT, executable, argv)); - - if (status == -1) - { - *err = errno; - *errmsg = ((flags & PEX_SEARCH) != 0) ? "spawnvp" : "spawnv"; - } - - if (in != STDIN_FILE_NO) - { - if (dup2 (org_in, STDIN_FILE_NO) < 0) - { - *err = errno; - *errmsg = "dup2"; - return -1; - } - if (close (org_in) < 0) - { - *err = errno; - *errmsg = "close"; - return -1; - } - } - - if (out != STDOUT_FILE_NO) - { - if (dup2 (org_out, STDOUT_FILE_NO) < 0) - { - *err = errno; - *errmsg = "dup2"; - return -1; - } - if (close (org_out) < 0) - { - *err = errno; - *errmsg = "close"; - return -1; - } - } - - if (errdes != STDERR_FILE_NO - || (flags & PEX_STDERR_TO_STDOUT) != 0) - { - if (dup2 (org_errdes, STDERR_FILE_NO) < 0) - { - *err = errno; - *errmsg = "dup2"; - return -1; - } - if (close (org_errdes) < 0) - { - *err = errno; - *errmsg = "close"; - return -1; - } - } - - /* Save the exit status for later. When we are called, obj->count - is the number of children which have executed before this - one. */ - statuses = (int *) obj->sysdep; - statuses = XRESIZEVEC (int, statuses, obj->count + 1); - statuses[obj->count] = status; - obj->sysdep = (void *) statuses; - - return obj->count; -} - -/* Wait for a child process to complete. Actually the child process - has already completed, and we just need to return the exit - status. */ - -static int -pex_djgpp_wait (struct pex_obj *obj, long pid, int *status, - struct pex_time *time, int done ATTRIBUTE_UNUSED, - const char **errmsg ATTRIBUTE_UNUSED, - int *err ATTRIBUTE_UNUSED) -{ - int *statuses; - - if (time != NULL) - memset (time, 0, sizeof *time); - - statuses = (int *) obj->sysdep; - *status = statuses[pid]; - - return 0; -} |