Thu Sep 21 00:03:53 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>

	* sysdeps/stub/sys/sem_buf.h (union semun): New type.

	* sysdeps/mach/hurd/i386/init-first.c (init1) [PIC]: Call
	__libc_global_ctors.
	* sysdeps/i386/init-first.c: Rewritten.
	* sysdeps/unix/sysv/linux/i386/init-first.S: File removed.
	* sysdeps/unix/sysv/linux/i386/init-first.c: New file.

	* sysdeps/unix/sysv/linux/i386/fpu_control.h: Fix name in decl of
	___fpu_control.

	* Makerules (build-shlib): New canned sequence, broken out of
	lib%.so rule.  Link in $^ instead of just $<.
	(lib%.so: lib%_pic.a): Use it.
	(libc.so): New target; use $(build-shlib) for cmds, but also depend
	on soinit.so first and sofini.so last.

	* elf/soinit.c: New file.
	* elf/sofini.c: New file.
	* elf/Makefile (distribute): Add soinit.c and sofini.c.
	(extra-objs): Add soinit.so and sofini.so.

	* sysvipc/sys/shm.h (shmat): Fix return type to char *.
	* sysdeps/stub/sys/ipc_buf.h (key_t): Type removed.

	* misc/syslog.c (vsyslog): Rewritten using open_memstream to
	dynamically allocate buffers.

	* Makerules (install-lib-nosubdir): Make this, rather than
	install-no-libc.a, depend on the installed shared libraries.

1 files changed, 72 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/i386/init-first.c b/sysdeps/unix/sysv/linux/i386/init-first.c
new file mode 100644
index 0000000000..0177daae24
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/init-first.c
@@ -0,0 +1,72 @@
+/* Initialization code run first thing by the ELF startup code.  i386/Linux
+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 <unistd.h>
+#include "fpu_control.h"
+
+extern void __libc_init (int, char **, char **);
+extern void __libc_global_ctors (void);
+
+
+static void
+init (int *data)
+{
+  int argc = *data;
+  char **argv = (void *) (data + 1);
+  char **envp = &argv[argc + 1];
+
+  /* Make sure we are not using iBSC2 personality.  */
+  asm ("int $0x80 # syscall no %0, arg %1"
+       : : "a" (SYS_ify (personality)), "b" (0));
+
+  /* Set the FPU control word to the proper default value.  */
+  __setfpucw (___fpu_control);
+
+  __environ = envp;
+  __libc_init (argc, argv, envp);
+}
+
+#ifdef PIC
+/* This function is called to initialize the shared C library.
+   It is called just before the user _start code from i386/elf/start.S,
+   with the stack set up as that code gets it.  */
+
+/* NOTE!  The linker notices the magical name `_init' and sets the DT_INIT
+   pointer in the dynamic section based solely on that.  It is convention
+   for this function to be in the `.init' section, but the symbol name is
+   the only thing that really matters!!  */
+/*void _init (int argc, ...) __attribute__ ((unused, section (".init")));*/
+
+void
+_init (int argc, ...)
+{
+  init (&argc);
+
+  __libc_global_ctors ();
+}
+#endif
+
+
+void
+__libc_init_first (int argc __attribute__ ((unused)), ...)
+{
+#ifndef PIC
+  init (&argc);
+#endif
+}