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.

7 files changed, 119 insertions, 102 deletions

diff --git a/sysdeps/i386/init-first.c b/sysdeps/i386/init-first.c
index aa36732f60..792702e024 100644
--- a/sysdeps/i386/init-first.c
+++ b/sysdeps/i386/init-first.c
@@ -20,26 +20,45 @@ Cambridge, MA 02139, USA.  */
 #include <unistd.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];
+
+  __environ = envp;
+  __libc_init (argc, argv, envp);
+}
 
 #ifdef PIC
-static void soinit (int argc, char *arg0, ...)
-     __attribute__ ((unused, section (".init")));
+/* 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
-__libc_init_first (void)
+_init (int argc, ...)
 {
+  init (&argc);
+
+  __libc_global_ctors ();
 }
 #endif
 
-#ifdef PIC
-static void soinit 
-#else
-void __libc_init_first
-#endif
-(int argc, char *arg0, ...)
-{
-  char **argv = &arg0, **envp = &argv[argc + 1];
 
-  __environ = envp;
-  __libc_init (argc, argv, envp);
+void
+__libc_init_first (int argc __attribute__ ((unused)), ...)
+{
+#ifndef PIC
+  init (&argc);
+#endif
 }
diff --git a/sysdeps/mach/hurd/i386/init-first.c b/sysdeps/mach/hurd/i386/init-first.c
index a23d201e58..ba39a70d23 100644
--- a/sysdeps/mach/hurd/i386/init-first.c
+++ b/sysdeps/mach/hurd/i386/init-first.c
@@ -27,6 +27,7 @@ Cambridge, MA 02139, USA.  */
 
 extern void __mach_init (void);
 extern void __libc_init (int, char **, char **);
+extern void __libc_global_ctors (void);
 
 void *(*_cthread_init_routine) (void); /* Returns new SP to use.  */
 void (*_cthread_exit_routine) (int status) __attribute__ ((__noreturn__));
@@ -93,6 +94,9 @@ init1 (int argc, char *arg0, ...)
 		d->intarray, d->intarraysize);
 
   __libc_init (argc, argv, __environ);
+#ifdef PIC
+  __libc_global_ctors ();
+#endif
 }
 
 static void
diff --git a/sysdeps/stub/sys/ipc_buf.h b/sysdeps/stub/sys/ipc_buf.h
index fc2ad03873..d62d2c14ce 100644
--- a/sysdeps/stub/sys/ipc_buf.h
+++ b/sysdeps/stub/sys/ipc_buf.h
@@ -36,9 +36,6 @@ Boston, MA 02111-1307, USA.  */
 
 __BEGIN_DECLS
 
-/* Data type for key value.  */
-typedef int key_t;
-
 /* Special key values.  */
 #define IPC_PRIVATE	((key_t) 0)	/* private key */
 
diff --git a/sysdeps/stub/sys/sem_buf.h b/sysdeps/stub/sys/sem_buf.h
index b301525408..194eb149ec 100644
--- a/sysdeps/stub/sys/sem_buf.h
+++ b/sysdeps/stub/sys/sem_buf.h
@@ -47,6 +47,15 @@ struct semid_ds
   unsigned short int sem_nsems;		/* number of semaphores in set */
 };
 
+/* Union used for argument for `semctl'.  */
+union semun
+{
+  int val;				/* value for SETVAL */
+  struct semid_ds *buf;			/* buffer for IPC_STAT & IPC_SET */
+  unsigned short int *array;		/* array for GETALL & SETALL */
+  struct seminfo *__buf;		/* buffer for IPC_INFO */
+ };
+ 
 __END_DECLS
 
 #endif /* sys/sem_buf.h */
diff --git a/sysdeps/unix/sysv/linux/i386/fpu_control.h b/sysdeps/unix/sysv/linux/i386/fpu_control.h
index 28f3eeba7b..470e960853 100644
--- a/sysdeps/unix/sysv/linux/i386/fpu_control.h
+++ b/sysdeps/unix/sysv/linux/i386/fpu_control.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993 Free Software Foundation, Inc.
+/* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
 This file is part of the GNU C Library.
 Contributed by Olaf Flebbe.
 
@@ -88,7 +88,7 @@ Boston, MA 02111-1307, USA.  */
 #define _FPU_IEEE     0x137f
 
 /* private namespace. It should only be used in init-first.o. */
-extern unsigned short __fpu_control;
+extern unsigned short ___fpu_control;
 
 __BEGIN_DECLS
 
diff --git a/sysdeps/unix/sysv/linux/i386/init-first.S b/sysdeps/unix/sysv/linux/i386/init-first.S
deleted file mode 100644
index 3c0c185fb7..0000000000
--- a/sysdeps/unix/sysv/linux/i386/init-first.S
+++ /dev/null
@@ -1,84 +0,0 @@
-/* Initialization code run first thing by the ELF startup code.
-   For 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., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-#include <sysdep.h>
-
-	.text
-
-	/* Called from start.S.  Not: there is no value in %ebx.  */
-
-ENTRY (__libc_init_first)
-
-	/* Make sure we are not using iBSC2 personality.  */
-	movl $SYS_ify (personality), %eax
-	xorl %ebx, %ebx
-	int $0x80
-
-#ifdef PIC
-	/* Set control work of FPU.  */
-	call .L0
-.L0:	popl %ebx
-	addl $_GLOBAL_OFFSET_TABLE_+[.-.L0], %ebx
-	movzwl C_SYMBOL_NAME(___fpu_control@GOT)(%ebx), %eax
-#else
-	movzwl ___fpu_control, %eax
-#endif
-	pushl %eax
-	call JUMPTARGET(__setfpucw)
-	addl $4, %esp
-
-	/* That is all for now.  */
-	ret
-
-
-	/* This is only a dummy function for the list below.  */
-	.type _dummy_exit, @function
-C_LABEL(_dummy_exit)
-	ret
-
-
-	.section .init,"ax",@progbits
-	movl 16(%ebp), %edx	/* envp */
-	movl 12(%ebp), %ecx	/* argv */
-	movl 8(%ebp), %eax	/* argc */
-	pushl %edx
-	pushl %ecx
-	pushl %eax
-
-	call JUMPTARGET(__libc_init)
-
-	addl $12, %esp
-
-
-	/* Make sure __libc_subinit section is always present.  */
-	.section __libc_subinit, "a", @progbits
-	.align 4
-	.type __elf_set___libc_subinit_element__dummy_exit__, @object
-	.size __elf_set___libc_subinit_element__dummy_exit__, 4
-__elf_set___libc_subinit_element__dummy_exit__:
-	.long _dummy_exit
-
-	/* Make sure __libc_atexit section is always present.  */
-	.section __libc_atexit, "a", @progbits
-	.align 4
-	.type __elf_set___libc_atexit_element__dummy_exit__, @object
-	.size __elf_set___libc_atexit_element__dummy_exit__, 4
-__elf_set___libc_atexit_element__dummy_exit__:
-	.long _dummy_exit
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
+}