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author | marha <marha@users.sourceforge.net> | 2010-05-16 20:50:58 +0000 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2010-05-16 20:50:58 +0000 |
commit | 1c94119ae26b94a60bb2c2b33494ed43c3b8a52f (patch) | |
tree | cfe0c736c95314edac7d9f1065be9c13026ed0c1 /xorg-server/os/osinit.c | |
parent | 6b29aa4559aeb6f795caee047561654bfa0a1954 (diff) | |
download | vcxsrv-1c94119ae26b94a60bb2c2b33494ed43c3b8a52f.tar.gz vcxsrv-1c94119ae26b94a60bb2c2b33494ed43c3b8a52f.tar.bz2 vcxsrv-1c94119ae26b94a60bb2c2b33494ed43c3b8a52f.zip |
svn merge -r588:HEAD ^/branches/released .
Diffstat (limited to 'xorg-server/os/osinit.c')
-rw-r--r-- | xorg-server/os/osinit.c | 659 |
1 files changed, 329 insertions, 330 deletions
diff --git a/xorg-server/os/osinit.c b/xorg-server/os/osinit.c index 23a45e5b7..d04ac6636 100644 --- a/xorg-server/os/osinit.c +++ b/xorg-server/os/osinit.c @@ -1,330 +1,329 @@ -/*********************************************************** - -Copyright 1987, 1998 The Open Group - -Permission to use, copy, modify, distribute, and sell this software and its -documentation for any purpose is hereby granted without fee, provided that -the above copyright notice appear in all copies and that both that -copyright notice and this permission notice appear in supporting -documentation. - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN -AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the name of The Open Group shall not be -used in advertising or otherwise to promote the sale, use or other dealings -in this Software without prior written authorization from The Open Group. - - -Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. - - All Rights Reserved - -Permission to use, copy, modify, and distribute this software and its -documentation for any purpose and without fee is hereby granted, -provided that the above copyright notice appear in all copies and that -both that copyright notice and this permission notice appear in -supporting documentation, and that the name of Digital not be -used in advertising or publicity pertaining to distribution of the -software without specific, written prior permission. - -DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING -ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL -DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR -ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS -SOFTWARE. - -******************************************************************/ - -#ifdef HAVE_DIX_CONFIG_H -#include <dix-config.h> -#endif - -#include <stdio.h> -#include <X11/X.h> -#include "os.h" -#include "osdep.h" -#include <X11/Xos.h> -#include <signal.h> -#include <errno.h> -#ifdef HAVE_DLFCN_H -# include <dlfcn.h> -#endif -#ifdef HAVE_BACKTRACE -#include <execinfo.h> -#endif - - -#include "dixstruct.h" - -#ifndef PATH_MAX -#ifdef MAXPATHLEN -#define PATH_MAX MAXPATHLEN -#else -#define PATH_MAX 1024 -#endif -#endif - -#if defined(__SCO__) -#include <sys/wait.h> -#endif - -#if !defined(SYSV) && !defined(WIN32) -#include <sys/resource.h> -#endif - -#ifndef ADMPATH -#define ADMPATH "/usr/adm/X%smsgs" -#endif - -extern char *display; -#ifdef RLIMIT_DATA -int limitDataSpace = -1; -#endif -#ifdef RLIMIT_STACK -int limitStackSpace = -1; -#endif -#ifdef RLIMIT_NOFILE -int limitNoFile = -1; -#endif - -static OsSigWrapperPtr OsSigWrapper = NULL; - -OsSigWrapperPtr -OsRegisterSigWrapper(OsSigWrapperPtr newSigWrapper) -{ - OsSigWrapperPtr oldSigWrapper = OsSigWrapper; - - OsSigWrapper = newSigWrapper; - - return oldSigWrapper; -} - -/* - * OsSigHandler -- - * Catch unexpected signals and exit or continue cleanly. - */ -static void -#ifdef SA_SIGINFO -OsSigHandler(int signo, siginfo_t *sip, void *unused) -#else -OsSigHandler(int signo) -#endif -{ -#ifdef RTLD_DI_SETSIGNAL - const char *dlerr = dlerror(); - - if (dlerr) { - LogMessage(X_ERROR, "Dynamic loader error: %s\n", dlerr); - } -#endif /* RTLD_DI_SETSIGNAL */ - - if (OsSigWrapper != NULL) { - if (OsSigWrapper(signo) == 0) { - /* ddx handled signal and wants us to continue */ - return; - } - } - - /* log, cleanup, and abort */ - xorg_backtrace(); - -#ifdef SA_SIGINFO - if (sip->si_code == SI_USER) { - ErrorF("Recieved signal %d sent by process %ld, uid %ld\n", - signo, (long) sip->si_pid, (long) sip->si_uid); - } else { - switch (signo) { - case SIGSEGV: - case SIGBUS: - case SIGILL: - case SIGFPE: - ErrorF("%s at address %p\n", strsignal(signo), sip->si_addr); - } - } -#endif - - FatalError("Caught signal %d (%s). Server aborting\n", - signo, strsignal(signo)); -} - -void -OsInit(void) -{ - static Bool been_here = FALSE; - static char* admpath = ADMPATH; - static char* devnull = "/dev/null"; - char fname[PATH_MAX]; - - if (!been_here) { -#ifndef _MSC_VER - struct sigaction act, oact; - int i; - int siglist[] = { SIGSEGV, SIGQUIT, SIGILL, SIGFPE, SIGBUS, -#ifdef SIGSYS - SIGSYS, -#endif -#ifdef SIGXCPU - SIGXCPU, -#endif -#ifdef SIGXFSZ - SIGXFSZ, -#endif -#ifdef SIGEMT - SIGEMT, -#endif - 0 /* must be last */ }; - sigemptyset(&act.sa_mask); -#ifdef SA_SIGINFO - act.sa_sigaction = OsSigHandler; - act.sa_flags = SA_SIGINFO; -#else - act.sa_handler = OsSigHandler; - act.sa_flags = 0; -#endif - for (i = 0; siglist[i] != 0; i++) { - if (sigaction(siglist[i], &act, &oact)) { - ErrorF("failed to install signal handler for signal %d: %s\n", - siglist[i], strerror(errno)); - } - } -#ifdef HAVE_BACKTRACE - /* - * initialize the backtracer, since the ctor calls dlopen(), which - * calls malloc(), which isn't signal-safe. - */ - do { - void *array; - backtrace(&array, 1); - } while (0); -#endif - -#ifdef RTLD_DI_SETSIGNAL - /* Tell runtime linker to send a signal we can catch instead of SIGKILL - * for failures to load libraries/modules at runtime so we can clean up - * after ourselves. - */ - int failure_signal = SIGQUIT; - dlinfo(RTLD_SELF, RTLD_DI_SETSIGNAL, &failure_signal); -#endif -#endif -#if !defined(__SCO__) && !defined(__CYGWIN__) && !defined(__UNIXWARE__) - fclose(stdin); - fclose(stdout); -#endif - /* - * If a write of zero bytes to stderr returns non-zero, i.e. -1, - * then writing to stderr failed, and we'll write somewhere else - * instead. (Apparently this never happens in the Real World.) - */ - if (write (2, fname, 0) == -1) - { - FILE *err; - - if (strlen (display) + strlen (admpath) + 1 < sizeof fname) - sprintf (fname, admpath, display); - else - strcpy (fname, devnull); - /* - * uses stdio to avoid os dependencies here, - * a real os would use - * open (fname, O_WRONLY|O_APPEND|O_CREAT, 0666) - */ - if (!(err = fopen (fname, "a+"))) - err = fopen (devnull, "w"); - if (err && (fileno(err) != 2)) { - dup2 (fileno (err), 2); - fclose (err); - } -#if defined(SYSV) || defined(SVR4) || defined(WIN32) || defined(__CYGWIN__) - { - static char buf[BUFSIZ]; - setvbuf (stderr, buf, _IOLBF, BUFSIZ); - } -#else - setlinebuf(stderr); -#endif - } - -#ifndef _MSC_VER - if (getpgrp () == 0) - setpgid (0, 0); -#endif - -#ifdef RLIMIT_DATA - if (limitDataSpace >= 0) - { - struct rlimit rlim; - - if (!getrlimit(RLIMIT_DATA, &rlim)) - { - if ((limitDataSpace > 0) && (limitDataSpace < rlim.rlim_max)) - rlim.rlim_cur = limitDataSpace; - else - rlim.rlim_cur = rlim.rlim_max; - (void)setrlimit(RLIMIT_DATA, &rlim); - } - } -#endif -#ifdef RLIMIT_STACK - if (limitStackSpace >= 0) - { - struct rlimit rlim; - - if (!getrlimit(RLIMIT_STACK, &rlim)) - { - if ((limitStackSpace > 0) && (limitStackSpace < rlim.rlim_max)) - rlim.rlim_cur = limitStackSpace; - else - rlim.rlim_cur = rlim.rlim_max; - (void)setrlimit(RLIMIT_STACK, &rlim); - } - } -#endif -#ifdef RLIMIT_NOFILE - if (limitNoFile >= 0) - { - struct rlimit rlim; - - if (!getrlimit(RLIMIT_NOFILE, &rlim)) - { - if ((limitNoFile > 0) && (limitNoFile < rlim.rlim_max)) - rlim.rlim_cur = limitNoFile; - else - rlim.rlim_cur = rlim.rlim_max; - (void)setrlimit(RLIMIT_NOFILE, &rlim); - } - } -#endif - LockServer(); - been_here = TRUE; - } - TimerInit(); - OsVendorInit(); - /* - * No log file by default. OsVendorInit() should call LogInit() with the - * log file name if logging to a file is desired. - */ - LogInit(NULL, NULL); - if (!SmartScheduleDisable) - if (!SmartScheduleInit ()) - SmartScheduleDisable = TRUE; -} - -void -OsCleanup(Bool terminating) -{ - if (terminating) - { - UnlockServer(); - } -} +/***********************************************************
+
+Copyright 1987, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+
+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+******************************************************************/
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <stdio.h>
+#include <X11/X.h>
+#include "os.h"
+#include "osdep.h"
+#include <X11/Xos.h>
+#include <signal.h>
+#include <errno.h>
+#ifdef HAVE_DLFCN_H
+# include <dlfcn.h>
+#endif
+#ifdef HAVE_BACKTRACE
+#include <execinfo.h>
+#endif
+
+
+#include "dixstruct.h"
+
+#ifndef PATH_MAX
+#ifdef MAXPATHLEN
+#define PATH_MAX MAXPATHLEN
+#else
+#define PATH_MAX 1024
+#endif
+#endif
+
+#if defined(__SCO__)
+#include <sys/wait.h>
+#endif
+
+#if !defined(SYSV) && !defined(WIN32)
+#include <sys/resource.h>
+#endif
+
+#ifndef ADMPATH
+#define ADMPATH "/usr/adm/X%smsgs"
+#endif
+
+extern char *display;
+#ifdef RLIMIT_DATA
+int limitDataSpace = -1;
+#endif
+#ifdef RLIMIT_STACK
+int limitStackSpace = -1;
+#endif
+#ifdef RLIMIT_NOFILE
+int limitNoFile = -1;
+#endif
+
+static OsSigWrapperPtr OsSigWrapper = NULL;
+
+OsSigWrapperPtr
+OsRegisterSigWrapper(OsSigWrapperPtr newSigWrapper)
+{
+ OsSigWrapperPtr oldSigWrapper = OsSigWrapper;
+
+ OsSigWrapper = newSigWrapper;
+
+ return oldSigWrapper;
+}
+
+/*
+ * OsSigHandler --
+ * Catch unexpected signals and exit or continue cleanly.
+ */
+static void
+#ifdef SA_SIGINFO
+OsSigHandler(int signo, siginfo_t *sip, void *unused)
+#else
+OsSigHandler(int signo)
+#endif
+{
+#ifdef RTLD_DI_SETSIGNAL
+ const char *dlerr = dlerror();
+
+ if (dlerr) {
+ LogMessage(X_ERROR, "Dynamic loader error: %s\n", dlerr);
+ }
+#endif /* RTLD_DI_SETSIGNAL */
+
+ if (OsSigWrapper != NULL) {
+ if (OsSigWrapper(signo) == 0) {
+ /* ddx handled signal and wants us to continue */
+ return;
+ }
+ }
+
+ /* log, cleanup, and abort */
+ xorg_backtrace();
+
+#ifdef SA_SIGINFO
+ if (sip->si_code == SI_USER) {
+ ErrorF("Recieved signal %d sent by process %ld, uid %ld\n",
+ signo, (long) sip->si_pid, (long) sip->si_uid);
+ } else {
+ switch (signo) {
+ case SIGSEGV:
+ case SIGBUS:
+ case SIGILL:
+ case SIGFPE:
+ ErrorF("%s at address %p\n", strsignal(signo), sip->si_addr);
+ }
+ }
+#endif
+
+ FatalError("Caught signal %d (%s). Server aborting\n",
+ signo, strsignal(signo));
+}
+
+void
+OsInit(void)
+{
+ static Bool been_here = FALSE;
+ static char* devnull = "/dev/null";
+ char fname[PATH_MAX];
+
+ if (!been_here) {
+#ifndef _MSC_VER
+ struct sigaction act, oact;
+ int i;
+ int siglist[] = { SIGSEGV, SIGQUIT, SIGILL, SIGFPE, SIGBUS,
+#ifdef SIGSYS
+ SIGSYS,
+#endif
+#ifdef SIGXCPU
+ SIGXCPU,
+#endif
+#ifdef SIGXFSZ
+ SIGXFSZ,
+#endif
+#ifdef SIGEMT
+ SIGEMT,
+#endif
+ 0 /* must be last */ };
+ sigemptyset(&act.sa_mask);
+#ifdef SA_SIGINFO
+ act.sa_sigaction = OsSigHandler;
+ act.sa_flags = SA_SIGINFO;
+#else
+ act.sa_handler = OsSigHandler;
+ act.sa_flags = 0;
+#endif
+ for (i = 0; siglist[i] != 0; i++) {
+ if (sigaction(siglist[i], &act, &oact)) {
+ ErrorF("failed to install signal handler for signal %d: %s\n",
+ siglist[i], strerror(errno));
+ }
+ }
+#ifdef HAVE_BACKTRACE
+ /*
+ * initialize the backtracer, since the ctor calls dlopen(), which
+ * calls malloc(), which isn't signal-safe.
+ */
+ do {
+ void *array;
+ backtrace(&array, 1);
+ } while (0);
+#endif
+
+#ifdef RTLD_DI_SETSIGNAL
+ /* Tell runtime linker to send a signal we can catch instead of SIGKILL
+ * for failures to load libraries/modules at runtime so we can clean up
+ * after ourselves.
+ */
+ int failure_signal = SIGQUIT;
+ dlinfo(RTLD_SELF, RTLD_DI_SETSIGNAL, &failure_signal);
+#endif
+#endif
+#if !defined(__SCO__) && !defined(__CYGWIN__) && !defined(__UNIXWARE__)
+ fclose(stdin);
+ fclose(stdout);
+#endif
+ /*
+ * If a write of zero bytes to stderr returns non-zero, i.e. -1,
+ * then writing to stderr failed, and we'll write somewhere else
+ * instead. (Apparently this never happens in the Real World.)
+ */
+ if (write (2, fname, 0) == -1)
+ {
+ FILE *err;
+
+ if (strlen (display) + strlen (ADMPATH) + 1 < sizeof fname)
+ sprintf (fname, ADMPATH, display);
+ else
+ strcpy (fname, devnull);
+ /*
+ * uses stdio to avoid os dependencies here,
+ * a real os would use
+ * open (fname, O_WRONLY|O_APPEND|O_CREAT, 0666)
+ */
+ if (!(err = fopen (fname, "a+")))
+ err = fopen (devnull, "w");
+ if (err && (fileno(err) != 2)) {
+ dup2 (fileno (err), 2);
+ fclose (err);
+ }
+#if defined(SYSV) || defined(SVR4) || defined(WIN32) || defined(__CYGWIN__)
+ {
+ static char buf[BUFSIZ];
+ setvbuf (stderr, buf, _IOLBF, BUFSIZ);
+ }
+#else
+ setlinebuf(stderr);
+#endif
+ }
+
+#ifndef _MSC_VER
+ if (getpgrp () == 0)
+ setpgid (0, 0);
+#endif
+
+#ifdef RLIMIT_DATA
+ if (limitDataSpace >= 0)
+ {
+ struct rlimit rlim;
+
+ if (!getrlimit(RLIMIT_DATA, &rlim))
+ {
+ if ((limitDataSpace > 0) && (limitDataSpace < rlim.rlim_max))
+ rlim.rlim_cur = limitDataSpace;
+ else
+ rlim.rlim_cur = rlim.rlim_max;
+ (void)setrlimit(RLIMIT_DATA, &rlim);
+ }
+ }
+#endif
+#ifdef RLIMIT_STACK
+ if (limitStackSpace >= 0)
+ {
+ struct rlimit rlim;
+
+ if (!getrlimit(RLIMIT_STACK, &rlim))
+ {
+ if ((limitStackSpace > 0) && (limitStackSpace < rlim.rlim_max))
+ rlim.rlim_cur = limitStackSpace;
+ else
+ rlim.rlim_cur = rlim.rlim_max;
+ (void)setrlimit(RLIMIT_STACK, &rlim);
+ }
+ }
+#endif
+#ifdef RLIMIT_NOFILE
+ if (limitNoFile >= 0)
+ {
+ struct rlimit rlim;
+
+ if (!getrlimit(RLIMIT_NOFILE, &rlim))
+ {
+ if ((limitNoFile > 0) && (limitNoFile < rlim.rlim_max))
+ rlim.rlim_cur = limitNoFile;
+ else
+ rlim.rlim_cur = rlim.rlim_max;
+ (void)setrlimit(RLIMIT_NOFILE, &rlim);
+ }
+ }
+#endif
+ LockServer();
+ been_here = TRUE;
+ }
+ TimerInit();
+ OsVendorInit();
+ /*
+ * No log file by default. OsVendorInit() should call LogInit() with the
+ * log file name if logging to a file is desired.
+ */
+ LogInit(NULL, NULL);
+ if (!SmartScheduleDisable)
+ if (!SmartScheduleInit ())
+ SmartScheduleDisable = TRUE;
+}
+
+void
+OsCleanup(Bool terminating)
+{
+ if (terminating)
+ {
+ UnlockServer();
+ }
+}
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