From d66e34cd423425c348bcc83df127dd19711b0b9a Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@gnu.org>
Date: Tue, 2 May 1995 06:35:55 +0000
Subject: * sysdeps/mach/i386/sysdep.h (SNARF_ARGS, CALL_WITH_SP): Rewritten.

	* sysdeps/i386/dl-machine.h: New file.
	* sysdeps/stub/dl-machine.h: New file.
	* sysdeps/i386/dl-runtime.c: New file.
	* sysdeps/stub/dl-runtime.c: New file.
	* sysdeps/i386/elf/start.S: New file.
	* sysdeps/generic/dl-sysdep.c: New file.
	* sysdeps/mach/hurd/dl-sysdep.c: New file.
---
 sysdeps/generic/dl-sysdep.c | 98 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 sysdeps/generic/dl-sysdep.c

(limited to 'sysdeps/generic')

diff --git a/sysdeps/generic/dl-sysdep.c b/sysdeps/generic/dl-sysdep.c
new file mode 100644
index 0000000000..9b86f6367b
--- /dev/null
+++ b/sysdeps/generic/dl-sysdep.c
@@ -0,0 +1,98 @@
+/* Operating system support for run-time dynamic linker.  Generic Unix version.
+Copyright (C) 1995 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <elf.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <link.h>
+
+Elf32_Addr
+_dl_sysdep_start (void **start_argptr,
+		  void (*dl_main) (const Elf32_Phdr *phdr, Elf32_Word phnum,
+				   Elf32_Addr *user_entry))
+{
+  const Elf32_Phdr *phdr;
+  Elf32_Word phnum;
+  Elf32_Addr user_entry;
+  Elf32_auxv_t *av;
+  uid_t uid, euid;
+  gid_t gid, egid;
+
+  _dl_argc = *(int *) start_argptr;
+  _dl_argv = start_argptr + 1;
+  _environ = &_dl_argv[_dl_argc + 1];
+  start_argptr = (void **) _environ;
+  while (*start_argptr)
+    ++start_argptr;
+
+  for (av = ++start_argptr; av->a_type != AT_NULL; ++av)
+    switch (av->a_type)
+      {
+      case AT_PHDR:
+	phdr = av->a_un.a_ptr;
+	break;
+      case AT_PHNUM:
+	phnum = av->a_un.a_val;
+	break;
+      case AT_ENTRY:
+	user_entry = av->a_un.a_val;
+      case AT_UID:
+	uid = av->a_un.a_val;
+	break;
+      case AT_GID:
+	gid = av->a_un.a_val;
+	break;
+      case AT_EUID:
+	euid = av->a_un.a_val;
+	break;
+      case AT_EGID:
+	egid = av->a_un.a_val;
+	break;
+      }
+
+  _dl_secure = uid != euid || gid != egid;
+
+  (*dl_main) (phdr, phnum, &user_entry);
+  start_argptr[-1] = (void *) user_entry;
+}
+
+int
+_dl_sysdep_open_zero_fill (void)
+{
+  return open ("/dev/zero", O_RDONLY);
+}
+
+#include <stdarg.h>
+
+void
+_dl_sysdep_fatal (const char *msg, ...)
+{
+  va_list ap;
+
+  va_start (ap, msg);
+  do
+    {
+      size_t len = strlen (msg);
+      write (STDERR_FILENO, msg, len);
+      msg = va_arg (ap, const char *);
+    } while (msg);
+  va_end (ap);
+
+  _exit (127);
+}
-- 
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