* 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.
+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.
+
Wed Sep 20 18:02:03 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* locale/locale.c: Include errno.h.
install-lib := $(filter-out %.so,$(install-lib))
ifeq (yes,$(build-shared))
install: $(libdir)/libc.so$(libc.so-version)
-install-no-libc.a: $(foreach so,$(install-lib.so),\
+install-lib-nosubdir: $(foreach so,$(install-lib.so),\
$(libdir)/$(patsubst $(libprefix)lib%,lib$(libprefix)%,\
$(libprefix)$(so))$($(so)-version))
# build shared libraries in place from the installed *_pic.a files.
# $(LDLIBS-%.so) may contain -l switches to generate run-time dependencies
# on other shared objects.
-lib%.so: lib%_pic.a
- $(LINK.o) -shared -o $@ -Wl,-soname \
- -Wl,lib$(libprefix)$(notdir $*).so$($(@F)-version) \
- $(LDFLAGS.so) $(LDFLAGS-$(notdir $*).so) \
- -L$(firstword $(objdir) .) -L$(common-objpfx:%/=%) \
- $(LDLIBS-$(notdir $*).so) -Wl,--whole-archive $< \
+lib%.so: lib%_pic.a; $(build-shlib)
+
+define build-shlib
+$(LINK.o) -shared -o $@ -Wl,-soname \
+ -Wl,lib$(libprefix)$(notdir $*).so$($(@F)-version) \
+ $(LDFLAGS.so) $(LDFLAGS-$(notdir $*).so) \
+ -L$(firstword $(objdir) .) -L$(common-objpfx:%/=%) \
+ -Wl,--whole-archive $^ $(LDLIBS-$(notdir $*).so)
+endef
# Don't try to use -lc when making libc.so itself.
# Also omits crti.o and crtn.o, which we do not want
LDFLAGS-c.so = -nostdlib -nostartfiles
# Give libc.so an entry point and make it directly runnable itself.
LDFLAGS-c.so += -Wl,-dynamic-linker -Wl,/lib/ld.so -e __libc_print_version
+# Use our own special initializer and finalizer files for libc.so.
+elfobjdir := $(firstword $(objdir) $(..)elf)
+$(common-objpfx)libc.so: $(elfobjdir)/soinit.so \
+ $(common-objpfx)libc_pic.a \
+ $(elfobjdir)/sofini.so
+ $(build-shlib)
endif
rtld-routines := rtld $(addprefix dl-,load lookup object reloc \
runtime sysdep error init fini)
-distribute = $(rtld-routines:=.c) dynamic-link.h do-rel.h
+distribute = $(rtld-routines:=.c) dynamic-link.h do-rel.h \
+ soinit.c sofini.c
include ../Makeconfig
ifeq (yes,$(build-shared))
-extra-objs = $(rtld-routines:=.so)
+extra-objs = $(rtld-routines:=.so) soinit.so sofini.so
install-lib = ld.so
endif
--- /dev/null
+/* Finalizer module for ELF shared C library. This provides terminating
+ null pointer words in the `.ctors' and `.dtors' sections. */
+
+static void (*const __CTOR_END__[1]) (void)
+ __attribute__ ((unused, section (".ctors")))
+ = { 0 };
+static void (*const __DTOR_END__[1]) (void)
+ __attribute__ ((unused, section (".dtors")))
+ = { 0 };
--- /dev/null
+/* Initializer module for building the ELF shared C library. This file and
+ sofini.c do the work normally done by crtbeginS.o and crtendS.o, to wrap
+ the `.ctors' and `.dtors' sections so the lists are terminated, and
+ calling those lists of functions. */
+
+static void (*const __CTOR_LIST__[1]) (void)
+ __attribute__ ((section (".ctors")))
+ = { (void (*) (void)) -1 };
+static void (*const __DTOR_LIST__[1]) (void)
+ __attribute__ ((section (".dtors")))
+ = { (void (*) (void)) -1 };
+
+static inline void
+run_hooks (void (*const list[]) (void))
+{
+ while (*++list)
+ (**list) ();
+}
+
+
+/* This function will be called from _init in init-first.c. */
+void
+__libc_global_ctors (void)
+{
+ /* Call constructor functions. */
+ run_hooks (__CTOR_LIST__);
+}
+
+
+/* This function becomes the DT_FINI termination function
+ for the C library. */
+void _fini (void) __attribute__ ((section (".fini"))); /* Just for kicks. */
+void
+_fini (void)
+{
+ /* Call destructor functions. */
+ run_hooks (__DTOR_LIST__);
+}
#include <string.h>
#include <time.h>
#include <unistd.h>
+#include <stdlib.h>
#if __STDC__
#include <stdarg.h>
register const char *fmt;
va_list ap;
{
- register int cnt;
- register char ch, *p, *t;
time_t now;
- int fd, saved_errno;
- char *stdp, tbuf[2048], fmt_cpy[1024];
+ int fd;
+ FILE *f;
+ char *buf = 0;
+ size_t bufsize = 0;
+ size_t prioff, msgoff;
#define INTERNALLOG LOG_ERR|LOG_CONS|LOG_PERROR|LOG_PID
/* Check for invalid bits. */
if (!LOG_MASK(LOG_PRI(pri)) & LogMask)
return;
- saved_errno = errno;
-
/* Set default facility if none specified. */
if ((pri & LOG_FACMASK) == 0)
pri |= LogFacility;
- /* Build the message. */
- (void)time(&now);
- p = tbuf + sprintf(tbuf, "<%d>", pri);
- p += strftime(p, sizeof (tbuf) - (p - tbuf), "%h %e %T ",
- localtime(&now));
- if (LogStat & LOG_PERROR)
- stdp = p;
+ /* Build the message in a memory-buffer stream. */
+ f = open_memstream (&buf, &bufsize);
+ prioff = fprintf (f, "<%d>", pri);
+ (void) time (&now);
+ f->__bufp += strftime (f->__bufp, f->__put_limit - f->__bufp,
+ "%h %e %T ", localtime (&now));
+ msgoff = ftell (f);
if (LogTag == NULL)
- LogTag = __progname;
+ LogTag = __progname;
if (LogTag != NULL)
- p += sprintf(p, "%s", LogTag);
+ fputs (LogTag, f);
if (LogStat & LOG_PID)
- p += sprintf(p, "[%d]", getpid());
- if (LogTag != NULL) {
- *p++ = ':';
- *p++ = ' ';
- }
+ fprintf (f, "[%d]", getpid ());
+ if (LogTag != NULL)
+ putc (':', f), putc (' ', f);
- /* Substitute error message for %m. */
- for (t = fmt_cpy; ch = *fmt; ++fmt)
- if (ch == '%' && fmt[1] == 'm') {
- ++fmt;
- t += sprintf(t, "%s", strerror(saved_errno));
- } else
- *t++ = ch;
- *t = '\0';
+ /* We have the header. Print the user's format into the buffer. */
+ vfprintf (f, fmt, ap);
- p += vsprintf(p, fmt_cpy, ap);
- cnt = p - tbuf;
+ /* Close the memory stream; this will finalize the data
+ into a malloc'd buffer in BUF. */
+ fclose (f);
/* Output to stderr if requested. */
if (LogStat & LOG_PERROR) {
struct iovec iov[2];
register struct iovec *v = iov;
- v->iov_base = stdp;
- v->iov_len = cnt - (stdp - tbuf);
+ v->iov_base = buf + msgoff;
+ v->iov_len = bufsize - msgoff;
++v;
- v->iov_base = "\n";
+ v->iov_base = (char *) "\n";
v->iov_len = 1;
(void)writev(STDERR_FILENO, iov, 2);
}
/* Get connected, output the message to the local logger. */
if (!connected)
openlog(LogTag, LogStat | LOG_NDELAY, 0);
- if (send(LogFile, tbuf, cnt, 0) >= 0)
- return;
-
- /*
- * Output the message to the console; don't worry about blocking,
- * if console blocks everything will. Make sure the error reported
- * is the one from the syslogd failure.
- */
- if (LogStat & LOG_CONS &&
- (fd = open(_PATH_CONSOLE, O_WRONLY, 0)) >= 0) {
- (void)strcat(tbuf, "\r\n");
- cnt += 2;
- p = index(tbuf, '>') + 1;
- (void)write(fd, p, cnt - (p - tbuf));
+ if (send(LogFile, buf, bufsize, 0) < 0)
+ {
+ /*
+ * Output the message to the console; don't worry about blocking,
+ * if console blocks everything will. Make sure the error reported
+ * is the one from the syslogd failure.
+ */
+ if (LogStat & LOG_CONS &&
+ (fd = open(_PATH_CONSOLE, O_WRONLY, 0)) >= 0)
+ {
+ dprintf (fd, "%s\r\n", buf + msgoff);
(void)close(fd);
- }
+ }
+ }
+
+ free (buf);
}
static struct sockaddr SyslogAddr; /* AF_UNIX address of local logger */
#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
}
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__));
d->intarray, d->intarraysize);
__libc_init (argc, argv, __environ);
+#ifdef PIC
+ __libc_global_ctors ();
+#endif
}
static void
__BEGIN_DECLS
-/* Data type for key value. */
-typedef int key_t;
-
/* Special key values. */
#define IPC_PRIVATE ((key_t) 0) /* private key */
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 */
-/* 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.
#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
+++ /dev/null
-/* 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
--- /dev/null
+/* 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
+}
extern int shmget __P ((key_t __key, int __size, int __shmflg));
/* Attach shared memory segment. */
-extern int shmat __P ((int __shmid, char *__shmaddr, int __shmflg));
+extern char *shmat __P ((int __shmid, char *__shmaddr, int __shmflg));
/* Detach shared memory segment. */
extern int shmdt __P ((char *__shmaddr));
git.samba.org / jlayton / glibc.git / commitdiff