aboutsummaryrefslogtreecommitdiff
path: root/sysdeps
diff options
context:
space:
mode:
authorRoland McGrath <roland@gnu.org>1995-09-21 06:24:21 +0000
committerRoland McGrath <roland@gnu.org>1995-09-21 06:24:21 +0000
commit0324daa0055227fdb157b8491d4e5bbe9d9d579a (patch)
tree1cc1994ae9fa52ba09e28498b50911628f366add /sysdeps
parent600927014b78e4247e36bbc554c188c7a3cca40e (diff)
downloadglibc-0324daa0055227fdb157b8491d4e5bbe9d9d579a.zip
glibc-0324daa0055227fdb157b8491d4e5bbe9d9d579a.tar.gz
glibc-0324daa0055227fdb157b8491d4e5bbe9d9d579a.tar.bz2
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.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/i386/init-first.c45
-rw-r--r--sysdeps/mach/hurd/i386/init-first.c4
-rw-r--r--sysdeps/stub/sys/ipc_buf.h3
-rw-r--r--sysdeps/stub/sys/sem_buf.h9
-rw-r--r--sysdeps/unix/sysv/linux/i386/fpu_control.h4
-rw-r--r--sysdeps/unix/sysv/linux/i386/init-first.S84
-rw-r--r--sysdeps/unix/sysv/linux/i386/init-first.c72
7 files changed, 119 insertions, 102 deletions
diff --git a/sysdeps/i386/init-first.c b/sysdeps/i386/init-first.c
index aa36732..792702e 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 a23d201..ba39a70 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 fc2ad03..d62d2c1 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 b301525..194eb14 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 28f3eeb..470e960 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 3c0c185..0000000
--- 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 0000000..0177daa
--- /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
+}