Initialization stuff for Linux/ARM.

diff --git a/sysdeps/unix/sysv/linux/arm/init-first.h b/sysdeps/unix/sysv/linux/arm/init-first.h
new file mode 100644 (file)
index 0000000..d68c368
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arm/init-first.h
@@ -0,0 +1,55 @@
+/* Prepare arguments for library initialization function.
+   Copyright (C) 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.  */
+
+/* The job of this fragment it to find argc and friends for INIT.
+   This is done in one of two ways: either in the stack context
+   of program start, or having dlopen pass them in.  
+   
+   */
+
+#define SYSDEP_CALL_INIT(NAME, INIT)                                         \
+void NAME (void* arg, ...)                     \
+{              \
+  int argc; \
+  char** argv; \
+  char** envp;                                                               \
+  /* The next variable is only here to work around a bug in gcc <= 2.7.2.2.   \
+     If the address would be taken inside the expression the optimizer       \
+     would try to be too smart and throws it away.  Grrr.  */                \
+  int *dummy_addr = &_dl_starting_up;                                        \
+                                                                             \
+  __libc_multiple_libcs = dummy_addr && !_dl_starting_up;                    \
+                                               \
+  if (!__libc_multiple_libcs)                  \
+    {                                          \
+       /* The ... in the arg list above forces the gnu ARM compiler to \
+       push r0, r1, r2, r3 onto the stack. This way we can get the address */ \
+      argc = *(int*) (&arg+4);                 \
+      argv = (char **) &arg + 5;               \
+      envp = &argv[argc+1];                    \
+    }                                          \
+  else /* the three were passed as arguments */        \
+      {                                                \
+      argc = (int)arg;                         \
+      argv = (char**)*(&arg + 1);              \
+      envp = (char**)*(&arg + 2);              \
+      }                                                \
+                                               \
+  INIT (argc, argv, envp);                     \
+}