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$NetBSD: patch-aj,v 1.1.1.1 2011/07/27 10:23:49 cherry Exp $
--- src/netbsd/misc-netbsd.c.orig 2009-12-16 12:47:32.000000000 +0000
+++ src/netbsd/misc-netbsd.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 1995-2007, Hewlett-Packard Development Company, L.P.
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <sys/time.h>
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "std.h"
+#include "types.h"
+#include "state.h"
+
+#include "netbsd/machdep-netbsd.h"
+
+int _close(int);
+int _open(const char *, int, int);
+
+CTR prof_insts = ~0ULL;
+char *src_root;
+
+#define SKI_NFDS 20
+int fdlimit;
+int fdmap[SKI_NFDS];
+
+void setFdmap(int fd1, int fd2)
+{
+ assert(0);
+}
+
+void profCnt(void)
+{
+ assert(0);
+}
+
+void saveOpenFiles(FILE *f)
+{
+}
+
+void restoreOpenFile(char *name, unsigned flag, unsigned mode, unsigned offset)
+{
+}
+
+/*
+ * We use our own implementation of open to force file descriptors
+ * opened by ski for ski to be larger than what we allow for the
+ * simulated process. This avoids nasty mappings...
+ */
+int open(const char *path, int flags, int mode)
+{
+ int res, fd;
+
+ if (!unixABI)
+ return (_open(path, flags, mode));
+
+ if (fdlimit == 0) {
+ fdlimit = getdtablesize() - SKI_NFDS;
+ if (fdlimit < 20) {
+ fprintf(stderr, "FD table size underflow\n");
+ abort();
+ }
+ dup2(0, fdlimit);
+ dup2(1, fdlimit + 1);
+ dup2(2, fdlimit + 2);
+ fdmap[0] = fdmap[1] = fdmap[2] = 1;
+ /* XXX we shouldn't go under the hood */
+ stdin->_file += fdlimit;
+ stdout->_file += fdlimit;
+ stderr->_file += fdlimit;
+ }
+
+ res = _open(path, flags, mode);
+ if (res >= fdlimit) {
+ _close(res);
+ errno = EMFILE;
+ return (-1);
+ } else if (res == -1)
+ return (res);
+
+ fd = 0;
+ while (fd < SKI_NFDS && fdmap[fd])
+ fd++;
+ if (fd == SKI_NFDS) {
+ _close(res);
+ errno = EMFILE;
+ return (-1);
+ }
+ if (dup2(res, fd + fdlimit) == -1) {
+ _close(res);
+ errno = EMFILE;
+ return (-1);
+ }
+ _close(res);
+ fdmap[fd] = 1;
+ return (fd + fdlimit);
+}
+
+int close(int fd)
+{
+ if (fd >= fdlimit && fdlimit != 0)
+ fdmap[fd - fdlimit] = 0;
+ _close(fd);
+}
|
