Dynamic loader for Hurd/MIPS.

2025-02-17 13:00:43 +08:00 · 1997-06-21 01:41:15 +00:00 · 1997-06-21 01:41:15 +00:00 · b836323e96
commit b836323e96
parent 405916ef4b
1 changed files with 131 additions and 0 deletions
--- a/sysdeps/mach/hurd/mips/dl-machine.c
+++ b/sysdeps/mach/hurd/mips/dl-machine.c
@ -0,0 +1,131 @@
+/* Operating system support for run-time dynamic linker.  MIPS specific
+   stuffs on Hurd.
+   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library 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.
+
+   The GNU C Library 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 the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <hurd.h>
+#include <link.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <assert.h>
+#include <sysdep.h>
+#include <mach/mig_support.h>
+#include "../stdio-common/_itoa.h"
+#include <stdarg.h>
+#include <ctype.h>
+#include <sys/stat.h>
+
+void weak_function
+abort (void)
+{
+  _exit (127);
+}
+
+
+#include <string.h>
+#include <mach/error.h>
+#include <errorlib.h>
+
+#undef _
+#define _(x) x
+
+/* Return a string describing the errno code in ERRNUM.  */
+char * weak_function
+_strerror_internal (int errnum, char *buf, size_t buflen)
+{
+  int system;
+  int sub;
+  int code;
+  const struct error_system *es;
+  extern void __mach_error_map_compat (int *);
+
+  __mach_error_map_compat (&errnum);
+
+  system = err_get_system (errnum);
+  sub = err_get_sub (errnum);
+  code = err_get_code (errnum);
+
+  if (system > err_max_system || ! __mach_error_systems[system].bad_sub)
+    {
+      const char *unk = _("Error in unknown error system: ");
+      const size_t unklen = strlen (unk);
+      char *p = buf + buflen;
+      *--p = '\0';
+      p = _itoa (errnum, p, 16, 1);
+      return memcpy (p - unklen, unk, unklen);
+    }
+
+  es = &__mach_error_systems[system];
+
+  if (sub >= es->max_sub)
+    return (char *) es->bad_sub;
+
+  if (code >= es->subsystem[sub].max_code)
+    {
+      const char *unk = _("Unknown error ");
+      const size_t unklen = strlen (unk);
+      char *p = buf + buflen;
+      size_t len = strlen (es->subsystem[sub].subsys_name);
+      *--p = '\0';
+      p = _itoa (errnum, p, 16, 1);
+      *p-- = ' ';
+      p = memcpy (p - len, es->subsystem[sub].subsys_name, len);
+      return memcpy (p - unklen, unk, unklen);
+    }
+
+  return (char *) _(es->subsystem[sub].codes[code]);
+}
+
+/* Read the whole contents of FILE into new mmap'd space with given
+   protections.  The size of the file is returned in SIZE.  */
+void *
+_dl_sysdep_read_whole_file (const char *file, size_t *size, int prot)
+{
+  struct stat stat;
+  mach_port_t memobj_rd;
+  void *contents;
+  error_t err;
+
+  memobj_rd = __open (file, O_RDONLY, 0);
+  if (memobj_rd)
+    {
+      err = __io_stat ((file_t) memobj_rd, &stat);
+      if (err)
+	{
+	  __hurd_fail (err);
+	  contents = 0;
+	}
+      else
+	{
+	  /* Map a copy of the file contents.  */
+	  contents = __mmap (0, stat.st_size, prot, MAP_COPY, memobj_rd, 0);
+	  if (contents == (void *)-1)
+	    contents = 0;
+	  else
+	    *size = stat.st_size;
+	}
+
+      __mach_port_deallocate (__mach_task_self (), memobj_rd);
+    }
+  else
+    contents = 0;
+
+  return contents;
+}