libc-parts/

2008-01-24  Neal H. Walfield  <neal@gnu.org>

	* Makefile.am (ARCH_SOURCES): Rename from this...
	(ARCH_COMMON_SOURCES): ... to this.
	(ARCH_USER_SOURCES): New variable.
	(ARCH_KERNEL_SOURCES): Likewise.
	(noinst_LIBRARIES): Add libc-kernel.a.
	(common_sources): New variable.
	(libc_parts_a_SOURCES): Move most files to common_sources.  Add
	$(ARCH_COMMON_SOURCES), $(ARCH_USER_SOURCES)
	(libc_parts_a_CPPFLAGS): Add -I$(LIBC)/include.
	(libc_kernel_a_SOURCES): New variable.
	(libc_kernel_a_CPPFLAGS): Likewise.
	(libc_kernel_a_LIBADD): Likewise.
	* s_printf.c: Move from ../ruth/output.c.
	(s_putchar) [RM_INTERN || _L4_TEST_ENVIRONMENT]: Add appropriate
	implementation.
	* _exit.c: New file.
	* getpagesize.c: Likewise.
	* ia32-cmain.c: Copied from ../ruth/ia32-cmain.c.  Removed dead
	code.  Don't include "ruth.h".  Add prototype for main.
	(program_name): New variable.
	(finish): Setup program_name based on ARGV[0].
	* ia32-crt0.S: Copied from ../ruth/ia32-crt0.c.
	* panic.c: Copied from ../ruth/panic.c.
	(panic_): Call _exit.
	* startup.c: New file.

ruth/

2008-01-24  Neal H. Walfield  <neal@gnu.org>

	* Makefile.am (ARCH_SOURCES): Remove variable.
	(ruth_SOURCES): Set to ruth.c.
	(COMMON_CPPFLAGS): Remove -I$(top_builddir)/newlib/include, add
	-I$@LIBC@/include.
	* output.c: Move to ../libc-parts/s_printf.c.
	* output.h: Remove file.
	* panic.c: Move to ../libc-parts/panic.c.
	* ruth.h: Remove file.
	* malloc.c: Likewise.
	* malloc-wrap.c: Likewise.
	* ia32-cmain.c: Move to ../libc-parts/ia32-cmain.c.
	* ia32-crt0.S: Move to ../libc-parts/ia32-crt0.c.
	* ruth.c: Include <stdio.h>.  Don't include "ruth.h".
	(output_debug): Declare, don't define.
	(exit): Remove function.
	(abort): Likewise.
	(getpagesize): Likewise.

laden/

2008-01-24  Neal H. Walfield  <neal@gnu.org>

	* Makefile.am (laden_LDADD): Set to ../libc-parts/libc-kernel.a,
	not ../libc-parts/libc-parts.a.

viengoos/

2008-01-24  Neal H. Walfield  <neal@gnu.org>

	* Makefile.am (viengoos_LDADD): Link with
	../libc-parts/libc-kernel.a, not ../libc-parts/libc-parts.a

9 files changed, 632 insertions, 7 deletions

diff --git a/libc-parts/ChangeLog b/libc-parts/ChangeLog
index 52f7144..a769e7c 100644
--- a/libc-parts/ChangeLog
+++ b/libc-parts/ChangeLog
@@ -1,5 +1,33 @@
 2008-01-24  Neal H. Walfield  <neal@gnu.org>
 
+	* Makefile.am (ARCH_SOURCES): Rename from this...
+	(ARCH_COMMON_SOURCES): ... to this.
+	(ARCH_USER_SOURCES): New variable.
+	(ARCH_KERNEL_SOURCES): Likewise.
+	(noinst_LIBRARIES): Add libc-kernel.a.
+	(common_sources): New variable.
+	(libc_parts_a_SOURCES): Move most files to common_sources.  Add
+	$(ARCH_COMMON_SOURCES), $(ARCH_USER_SOURCES)
+	(libc_parts_a_CPPFLAGS): Add -I$(LIBC)/include.
+	(libc_kernel_a_SOURCES): New variable.
+	(libc_kernel_a_CPPFLAGS): Likewise.
+	(libc_kernel_a_LIBADD): Likewise.
+	* s_printf.c: Move from ../ruth/output.c.
+	(s_putchar) [RM_INTERN || _L4_TEST_ENVIRONMENT]: Add appropriate
+	implementation.
+	* _exit.c: New file.
+	* getpagesize.c: Likewise.
+	* ia32-cmain.c: Copied from ../ruth/ia32-cmain.c.  Removed dead
+	code.  Don't include "ruth.h".  Add prototype for main.
+	(program_name): New variable.
+	(finish): Setup program_name based on ARGV[0].
+	* ia32-crt0.S: Copied from ../ruth/ia32-crt0.c.
+	* panic.c: Copied from ../ruth/panic.c.
+	(panic_): Call _exit.
+	* startup.c: New file.
+
+2008-01-24  Neal H. Walfield  <neal@gnu.org>
+
 	* Makefile.am (t_setjmp_CPPFLAGS): Remove -D_L4_TEST_ENVIRONMENT.
 	Add -DS_PRINTF=printf.
 
diff --git a/libc-parts/Makefile.am b/libc-parts/Makefile.am
index d1436d5..eaac137 100644
--- a/libc-parts/Makefile.am
+++ b/libc-parts/Makefile.am
@@ -19,20 +19,33 @@
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 
 if ARCH_IA32
-  ARCH_SOURCES = ia32-setjmp.S
+  ARCH_COMMON_SOURCES = ia32-setjmp.S 
+  ARCH_USER_SOURCES = ia32-cmain.c ia32-crt0.S
+  ARCH_KERNEL_SOURCES =
 endif
 
 COMMON_CPPFLAGS = -I$(srcdir) -I$(top_builddir)/include \
 	-I$(top_srcdir)/libc-parts -D_GNU_SOURCE -Wall -std=gnu99 -g
 
-noinst_LIBRARIES = libc-parts.a
+noinst_LIBRARIES = libc-parts.a libc-kernel.a
 
-libc_parts_a_CPPFLAGS = $(COMMON_CPPFLAGS)
-libc_parts_a_SOURCES = $(ARCH_SOURCES) 				\
-	assert.h ctype.h c-ctype.h c-ctype.c			\
-	errno.h errno.c						\
+common_sources = assert.h 					\
 	strtol.c strtoll.c strtoul.c strtoull.c			\
-	setjmp.h backtrace.c
+	setjmp.h backtrace.c s_printf.c startup.c		\
+	panic.c _exit.c
+
+libc_parts_a_CPPFLAGS = -I$(LIBC)/include $(COMMON_CPPFLAGS)
+libc_parts_a_SOURCES = 						\
+	$(ARCH_COMMON_SOURCES) $(ARCH_USER_SOURCES) 		\
+	ctype.h c-ctype.h c-ctype.c				\
+	getpagesize.c		 				\
+	$(common_sources)
+
+libc_kernel_a_CPPFLAGS = $(COMMON_CPPFLAGS) -DRM_INTERN
+libc_kernel_a_SOURCES =						\
+	$(ARCH_COMMON_SOURCES) $(ARCH_KERNEL_SOURCES) 		\
+	errno.h errno.c	 					\
+	$(common_sources)
 
 # For the following routines we want to take the possibly optimized
 # versions from the target's GNU C library, rather than duplicating
@@ -54,6 +67,7 @@ routines_objects := $(shell $(NM) --print-armap @STATIC_GLIBC@ 2>/dev/null \
 # routines_objects in Makefile.in by automake, which doesn't work at all.
 routines_varname := routines_objects
 libc_parts_a_LIBADD = $($(routines_varname))
+libc_kernel_a_LIBADD = $($(routines_varname))
 
 $(routines_objects): %.$(OBJEXT): @STATIC_GLIBC@
 	$(AR) -x $< $@
diff --git a/libc-parts/_exit.c b/libc-parts/_exit.c
new file mode 100644
index 0000000..74250fc
--- /dev/null
+++ b/libc-parts/_exit.c
@@ -0,0 +1,60 @@
+/* _exit.c - Exit implementation.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   Written by Neal H. Walfield <neal@gnu.org>.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd 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, or (at
+   your option) any later version.
+
+   The GNU Hurd 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., 59 Temple Place - Suite 330, Boston, MA  02111, USA. */
+
+#include <hurd/stddef.h>
+#include <hurd/startup.h>
+#include <hurd/folio.h>
+
+int __global_zero;
+
+void
+_exit (int ret)
+{
+#if defined (RM_INTERN)
+# if defined (__i386__)
+  /* Try to invoke the debugger.  */
+  asm ("int $3");
+# endif
+#else
+  extern struct hurd_startup_data *__hurd_startup_data;
+
+  addr_t folio = addr_chop (__hurd_startup_data->activity,
+			    FOLIO_OBJECTS_LOG2);
+  int index = addr_extract (__hurd_startup_data->activity,
+			    FOLIO_OBJECTS_LOG2);
+
+  error_t err;
+  err = rm_folio_object_alloc (ADDR_VOID, folio, index,
+			       cap_void, OBJECT_POLICY_VOID,
+			       (uintptr_t) ret,
+			       ADDR_VOID, ADDR_VOID);
+
+  assert_perror (err);
+#endif
+
+  debug (0, "Failed to die gracefully; doing the ultra-violent.");
+
+  volatile int j = ret / __global_zero;
+  for (;;)
+    {
+      j --;
+      l4_yield ();
+    }
+}
diff --git a/libc-parts/getpagesize.c b/libc-parts/getpagesize.c
new file mode 100644
index 0000000..feaa5b9
--- /dev/null
+++ b/libc-parts/getpagesize.c
@@ -0,0 +1,29 @@
+/* getpagesize.c - getpagesize() implementation.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   Written by Neal H. Walfield <neal@gnu.org>.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU Hurd 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sys/types.h>
+#include <hurd/stddef.h>
+
+size_t
+getpagesize (void)
+{
+  return PAGESIZE;
+}
diff --git a/libc-parts/ia32-cmain.c b/libc-parts/ia32-cmain.c
new file mode 100644
index 0000000..9b640c9
--- /dev/null
+++ b/libc-parts/ia32-cmain.c
@@ -0,0 +1,143 @@
+/* ia32-cmain.c - Startup code for the ia32.
+   Copyright (C) 2003, 2004, 2005, 2008 Free Software Foundation, Inc.
+   Written by Marcus Brinkmann.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd 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, or (at
+   your option) any later version.
+
+   The GNU Hurd 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., 59 Temple Place - Suite 330, Boston, MA  02111, USA. */
+
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <alloca.h>
+#include <stdint.h>
+#include <string.h>
+
+#include <l4/globals.h>
+#include <l4/init.h>
+#include <l4/stubs.h>
+#include <l4/stubs-init.h>
+
+#include <hurd/startup.h>
+#include <hurd/mm.h>
+#include <hurd/stddef.h>
+
+
+/* Initialized by the machine-specific startup-code.  */
+extern struct hurd_startup_data *__hurd_startup_data;
+
+
+extern void exit (int status)  __attribute__ ((__noreturn__));
+extern int main (int, char *[]);
+
+const char program_name[30];
+
+static void
+finish (void)
+{
+  int argc = 0;
+  char **argv = 0;
+
+  char *str = __hurd_startup_data->argz;
+  if (str)
+    /* A command line was passed.  */
+    {
+      int nr = 0;
+
+      /* First time around we count the number of arguments.  */
+      argc = 1;
+      while (*str && *str == ' ')
+	str++;
+
+      while (*str)
+	if (*(str++) == ' ')
+	  {
+	    while (*str && *str == ' ')
+	      str++;
+	    if (*str)
+	      argc++;
+	  }
+      argv = alloca (sizeof (char *) * (argc + 1));
+
+      /* Second time around we fill in the argv.  */
+      str = (char *) __hurd_startup_data->argz;
+
+      while (*str && *str == ' ')
+	str++;
+      argv[nr++] = str;
+
+      while (*str)
+	{
+	  if (*str == ' ')
+	    {
+	      *(str++) = '\0';
+	      while (*str && *str == ' ')
+		str++;
+	      if (*str)
+		argv[nr++] = str;
+	    }
+	  else
+	    str++;
+	}
+      argv[nr] = 0;
+    }
+  else
+    {
+      argc = 1;
+
+      argv = alloca (sizeof (char *) * 2);
+      argv[0] = (char *) program_name;
+      argv[1] = 0;
+    }
+
+  char *n = "unknown";
+  if (argv[0])
+    n = argv[0];
+
+  memcpy ((char *) program_name,  n,
+	  sizeof (program_name) > strlen (n)
+	  ? strlen (n) : sizeof (program_name));
+  ((char *) program_name)[sizeof (program_name)] = 0;
+
+  /* Now invoke the main function.  */
+  exit (main (argc, argv));
+}
+
+/* Initialize libl4, setup the argument vector, and pass control over
+   to the main function.  */
+void
+cmain (void)
+{
+  l4_init ();
+  l4_init_stubs ();
+
+  s_printf ("In cmain\n");
+
+  mm_init (__hurd_startup_data->activity);
+
+  extern void *(*_pthread_init_routine)(void);
+  if (_pthread_init_routine)
+    {
+      void *sp = _pthread_init_routine ();
+
+      /* Switch stacks.  */
+      l4_start_sp_ip (l4_myself (), (l4_word_t) sp, (l4_word_t) &finish);
+    }
+  else
+    finish ();
+
+  /* Never reached.  */
+}
diff --git a/libc-parts/ia32-crt0.S b/libc-parts/ia32-crt0.S
new file mode 100644
index 0000000..bc803e7
--- /dev/null
+++ b/libc-parts/ia32-crt0.S
@@ -0,0 +1,55 @@
+/* ia32-crt0.S - Startup code for ia32.
+   Copyright (C) 2003 Free Software Foundation, Inc.
+   Written by Marcus Brinkmann.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd 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, or (at
+   your option) any later version.
+
+   The GNU Hurd 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., 59 Temple Place - Suite 330, Boston, MA  02111, USA. */
+
+/* The size of our stack (4KB).  */
+#define STACK_SIZE			0x1000
+	
+	.text
+
+	.globl	start, _start
+start:
+_start:
+	/* The location of the Hurd startup data is stored in esp.  */
+	movl	%esp, __hurd_startup_data
+
+	/* Initialize the stack pointer.  */
+	movl	$(stack + STACK_SIZE), %esp
+
+	/* Reset EFLAGS.  */
+	pushl	$0
+	popf
+
+	/* Now enter the cmain function.  */
+	call	cmain
+
+	/* Not reached.  */
+loop:	hlt
+	jmp	loop
+
+	/* Our stack area.  */
+	.comm	stack, STACK_SIZE
+
+
+	.data
+
+	/* This variable holds a pointer to the Hurd startup data.  */
+	.global __hurd_startup_data
+__hurd_startup_data:
+	.long	0
diff --git a/libc-parts/panic.c b/libc-parts/panic.c
new file mode 100644
index 0000000..93e1886
--- /dev/null
+++ b/libc-parts/panic.c
@@ -0,0 +1,45 @@
+/* panic.h - Panic interface.
+   Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+   Written by Neal H. Walfield <neal@gnu.org>.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd 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, or (at
+   your option) any later version.
+
+   The GNU Hurd 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., 59 Temple Place - Suite 330, Boston, MA  02111, USA. */
+
+#include <hurd/stddef.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+extern const char program_name[];
+
+extern void _exit (int);
+
+void
+panic_ (const char *func, int line, const char *fmt, ...)
+{
+  va_list ap;
+
+  va_start (ap, fmt);
+
+  s_printf ("%s:%s:%d:%x: error: ", program_name, func, line, l4_myself ());
+  s_vprintf (fmt, ap);
+  s_printf ("\n");
+  va_end (ap);
+
+  _exit (127);
+  for (;;)
+    l4_yield ();
+}
+
diff --git a/libc-parts/s_printf.c b/libc-parts/s_printf.c
new file mode 100644
index 0000000..4a215cb
--- /dev/null
+++ b/libc-parts/s_printf.c
@@ -0,0 +1,232 @@
+/* s_printf.c - Simply output routines.
+   Copyright (C) 2003, 2007, 2008 Free Software Foundation, Inc.
+   Written by Marcus Brinkmann.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd 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, or (at
+   your option) any later version.
+
+   The GNU Hurd 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., 59 Temple Place - Suite 330, Boston, MA  02111, USA. */
+
+/* This implementation of printf is special in that it works in place
+   and does not dynamically allocate memory.  This makes it
+   appropriate for use in debugging code before malloc is functional
+   or if the state is uncertain, for instance, if assert or panic is
+   called.  */
+
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdarg.h>
+#include <hurd/rm.h>
+
+/* Print the single character CHR on the output device.  */
+int
+s_putchar (int chr)
+{
+#if defined(RM_INTERN) || defined(_L4_TEST_ENVIRONMENT)
+  /* For Viengoos, use driver putchar routine.  For the test
+     environment, just use the stdio putchar.  */
+  extern int putchar (int chr);
+
+  return putchar (chr);
+#else
+  rm_putchar (chr);
+  return 0;
+#endif
+}
+
+int
+s_puts (const char *str)
+{
+  while (*str != '\0')
+    s_putchar (*(str++));
+
+  s_putchar ('\n');
+
+  return 0;
+}
+
+
+static void
+print_nr (unsigned long long nr, int base)
+{
+  static char *digits = "0123456789abcdef";
+  char str[30];
+  int i = 0;
+
+  do
+    {
+      str[i++] = digits[nr % base];
+      nr = nr / base;
+    }
+  while (nr);
+
+  i--;
+  while (i >= 0)
+    s_putchar (str[i--]);
+}
+  
+
+static void
+print_signed_nr (long long nr, int base)
+{
+  unsigned long long unr;
+
+  if (nr < 0)
+    {
+      s_putchar ('-');
+      unr = -nr;
+    }
+  else
+    unr = nr;
+
+  print_nr (unr, base);
+}
+  
+
+int
+s_vprintf (const char *fmt, va_list ap)
+{
+  const char *p = fmt;
+
+  while (*p != '\0')
+    {
+      if (*p != '%')
+	{
+	  s_putchar (*(p++));
+	  continue;
+	}
+
+      p++;
+      switch (*p)
+	{
+	case '%':
+	  s_putchar ('%');
+	  p++;
+	  break;
+
+	case 'l':
+	  p++;
+	  if (*p != 'l')
+	    {
+	      s_putchar ('%');
+	      s_putchar ('l');
+	      s_putchar (*(p++));
+	      continue;
+	    }
+	  p++;
+	  switch (*p)
+	    {
+	    case 'o':
+	      print_nr (va_arg (ap, unsigned long long), 8);
+	      p++;
+	      break;
+
+	    case 'd':
+	    case 'i':
+	      print_signed_nr (va_arg (ap, long long), 10);
+	      p++;
+	      break;
+
+	    case 'x':
+	    case 'X':
+	      print_nr (va_arg (ap, unsigned long long), 16);
+	      p++;
+	      break;
+
+	    case 'u':
+	      print_nr (va_arg (ap, unsigned long long), 10);
+	      p++;
+	      break;
+
+	    default:
+	      s_putchar ('%');
+	      s_putchar ('l');
+	      s_putchar ('l');
+	      s_putchar (*(p++));
+	      break;
+	    }
+	  break;
+
+	case 'o':
+	  print_nr (va_arg (ap, unsigned int), 8);
+	  p++;
+	  break;
+
+	case 'd':
+	case 'i':
+	  print_signed_nr (va_arg (ap, int), 10);
+	  p++;
+	  break;
+
+	case 'x':
+	case 'X':
+	  print_nr (va_arg (ap, unsigned int), 16);
+	  p++;
+	  break;
+
+	case 'u':
+	  print_nr (va_arg (ap, unsigned int), 10);
+	  p++;
+	  break;
+
+	case 'c':
+	  s_putchar (va_arg (ap, int));
+	  p++;
+	  break;
+
+	case 's':
+	  {
+	    char *str = va_arg (ap, char *);
+	    if (str)
+	      while (*str)
+		s_putchar (*(str++));
+	    else
+	      {
+		s_putchar ('N');
+		s_putchar ('U');
+		s_putchar ('L');
+		s_putchar ('L');
+	      }
+	  }
+	  p++;
+	  break;
+
+	case 'p':
+	  print_nr ((unsigned int) va_arg (ap, void *), 16);
+	  p++;
+	  break;
+
+	default:
+	  s_putchar ('%');
+	  s_putchar (*p);
+	  p++;
+	  break;
+	}
+    }
+
+  return 0;
+}
+
+int
+s_printf (const char *fmt, ...)
+{
+  va_list ap;
+
+  va_start (ap, fmt);
+  int r = s_vprintf (fmt, ap);
+  va_end (ap);
+  return r;
+}
diff --git a/libc-parts/startup.c b/libc-parts/startup.c
new file mode 100644
index 0000000..cb6a1be
--- /dev/null
+++ b/libc-parts/startup.c
@@ -0,0 +1,19 @@
+/* startup.c - Architecture independent startup.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   Written by Neal H. Walfield <neal@gnu.org>.
+
+   GNU Hurd is free software: you can redistribute it and/or modify it
+   under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation, either version 3 of the
+   License, or (at your option) any later version.
+
+   GNU Hurd 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with GNU Hurd.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+int output_debug;