Update.cvs/libc-ud-971014

1997-10-15 06:56  Ulrich Drepper  <drepper@cygnus.com>

	* Rules: Remove ruls to magically install <subdir>.h headers.
	Reported by Mark Kettenis <kettenis@phys.uva.nl>.

	* glibcbug.in: Fix @gnu.ai.mit.edu -> @gnu.org.
	* version.c: Likewise.
	* catgets/gencat.c: Likewise.
	* db2/makedb.c: Likewise.
	* locale/programs/locale.c: Likewise.
	* locale/programs/localedef.c: Likewise.

	* libc.map: Move _IO_list_all back to GLIBC_2.0.

	* elf/rtld.c: Provide name of running program to _dl_new_object.

	* Rules: Implement shared-only-sources.
	* include/libc-symbols.h: Define default_symbol_version.
	* libio/Makefile (shared-only-sources): Define.
	* libio/freopen.c: Define as default version.
	* libio/iofopen.c: Likewise.
	* libio/genops.c: Define _IO_list_all here.
	* libio/stdfiles.c: Create linked list with public names.
	* libio/oldstdfiles.c: Likewise.

	* stdio-common/printf.c: Optimize.
	* stdio-common/scanf.c: Optimize.

	* sysdeps/generic/setfpucw.c: Include #include <...> not "...".

	* sysdeps/i386/i486/bits/string.h: Add optimized versions of index and
	rindex.

1997-10-14  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* manual/arith.texi: Spelling fixes.
	* manual/conf.texi: Likewise.
	* manual/creature.texi: Likewise.
	* manual/filesys.texi: Likewise.
	* manual/intro.texi: Likewise.
	* manual/llio.texi: Likewise.
	* manual/math.texi: Likewise.
	* manual/message.texi: Likewise.
	* manual/pattern.texi: Likewise.
	* manual/search.texi: Likewise.
	* manual/signal.texi: Likewise.
	* manual/socket.texi: Likewise.
	* manual/startup.texi: Likewise.
	* manual/stdio.texi: Likewise.
	* manual/string.texi: Likewise.
	* manual/time.texi: Likewise.
	* manual/users.texi: Likewise.

1997-10-13 05:25  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/generic/sys/mman.h: Use __ptr_t instead of __caddr_t.
	* sysdeps/unix/bsd/osf/sys/mman.h: Likewise.
	* sysdeps/unix/bsd/sun/sunos4/sys/mman.h: Likewise.
	* sysdeps/unix/bsd/ultrix4/sys/mman.h: Likewise.
	* sysdeps/unix/sysv/irix4/sys/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/mman.h: Likewise.
	* sysdeps/mach/hurd/mmap.c: Likewise.
	* sysdeps/generic/mmap.c: Likewise.
	* sysdeps/unix/bsd/sun/sunos4/mmap.c: Likewise.
	* sysdeps/mach/munmap.c: Likewise.
	* sysdeps/generic/munmap.c: Likewise.
	* sysdeps/mach/mprotect.c: Likewise.
	* sysdeps/generic/mprotect.c: Likewise.
	* sysdeps/generic/msync.c: Likewise.
	* sysdeps/generic/madvise.c: Likewise.

	* sysdeps/unix/sysv/linux/madvise.c: Include stub version from generic
	subdir.

1997-10-12 20:27  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* sysdeps/stub (all files):  Moved to sysdeps/generic.
	* all files using stub_warning: Include <stub-tag.h>.
	* include/stub-tag.h: New file, marks stubs in .d files.
	* Makerules: Look for stub-tag.h, not sysdeps/stub, when building
	<gnu/stubs.h>.
	* configure.in: Don't add sysdeps/stub to $sysnames.
	* sysdeps/unix/Makefile: Look for generic headers, not stub
	headers.
	* sysdeps/generic/Makefile: Likewise.
	* manual/maint.texi: Delete references to sysdeps/stub.
	* INSTALL: Rebuilt.
	* configure: Rebuilt.

1 files changed, 137 insertions, 0 deletions

diff --git a/sysdeps/generic/dl-machine.h b/sysdeps/generic/dl-machine.h
new file mode 100644
index 0000000000..f787df3500
--- /dev/null
+++ b/sysdeps/generic/dl-machine.h
@@ -0,0 +1,137 @@
+/* Machine-dependent ELF dynamic relocation inline functions.  Stub version.
+   Copyright (C) 1995, 1996, 1997 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.  */
+
+#define ELF_MACHINE_NAME "stub"
+
+#include <assert.h>
+#include <string.h>
+#include <link.h>
+
+
+/* Return nonzero iff E_MACHINE is compatible with the running host.  */
+static inline int
+elf_machine_matches_host (Elf32_Half e_machine)
+{
+  switch (e_machine)
+    {
+    default:
+      return 0;
+    }
+}
+
+
+/* Return the link-time address of _DYNAMIC.  */
+static inline Elf32_Addr
+elf_machine_dynamic (void)
+{
+#error "Damn, no _DYNAMIC"
+}
+
+
+/* Return the run-time load address of the shared object.  */
+static inline Elf32_Addr
+elf_machine_load_address (void)
+{
+#error "Where am I?"
+}
+
+/* Fixup a PLT entry to bounce directly to the function at VALUE.  */
+
+static inline void
+elf_machine_fixup_plt (struct link_map *map, const Elf32_Rel *reloc,
+		       Elf32_Addr *reloc_addr, Elf32_Addr value)
+{
+  *reloc_addr = value;
+}
+
+/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
+   LOADADDR is the load address of the object; INFO is an array indexed
+   by DT_* of the .dynamic section info.  */
+
+static inline void
+elf_machine_rel (Elf32_Addr loadaddr, Elf32_Dyn *info[DT_NUM],
+		 const Elf32_Rel *reloc, const Elf32_Sym *sym,
+		 Elf32_Addr (*resolve) (const Elf32_Sym **ref,
+					Elf32_Addr reloc_addr,
+					int noplt))
+{
+  Elf32_Addr *const reloc_addr = (Elf32_Addr *) reloc->r_offset;
+  Elf32_Addr loadbase;
+
+  switch (ELF32_R_TYPE (reloc->r_info))
+    {
+    case R_MACHINE_COPY:
+      loadbase = (*resolve) (&sym, (Elf32_Addr) reloc_addr, 0);
+      memcpy (reloc_addr, (void *) (loadbase + sym->st_value), sym->st_size);
+      break;
+    default:
+      assert (! "unexpected dynamic reloc type");
+      break;
+    }
+}
+
+
+static inline Elf32_Addr
+elf_machine_rela (Elf32_Addr loadaddr, Elf32_Dyn *info[DT_NUM],
+		  const Elf32_Rel *reloc, const Elf32_Sym *sym,
+		  Elf32_Addr (*resolve) (const Elf32_Sym **ref,
+					 Elf32_Addr reloc_addr,
+					 int noplt))
+{
+  _dl_signal_error (0, "Elf32_Rela relocation requested -- unused on "
+		    ELF_MACHINE_NAME);
+}
+
+
+/* Nonzero iff TYPE describes relocation of a PLT entry, so
+   PLT entries should not be allowed to define the value.  */
+#define elf_machine_pltrel_p(type) ((type) == R_???_JMP_SLOT)
+
+
+/* Set up the loaded object described by L so its unrelocated PLT
+   entries will jump to the on-demand fixup code in dl-runtime.c.  */
+
+static inline int
+elf_machine_runtime_setup (struct link_map *l, int lazy)
+{
+  extern void _dl_runtime_resolve (Elf32_Word);
+
+  if (lazy)
+    {
+      /* The GOT entries for functions in the PLT have not yet been filled
+         in.  Their initial contents will arrange when called to push an
+         offset into the .rel.plt section, push _GLOBAL_OFFSET_TABLE_[1],
+         and then jump to _GLOBAL_OFFSET_TABLE[2].  */
+      Elf32_Addr *got = (Elf32_Addr *) l->l_info[DT_PLTGOT]->d_un.d_ptr;
+      got[1] = (Elf32_Addr) l;	/* Identify this shared object.  */
+
+      /* This function will get called to fix up the GOT entry indicated by
+         the offset on the stack, and then jump to the resolved address.  */
+      got[2] = (Elf32_Addr) &_dl_runtime_resolve;
+    }
+
+  return lazy;
+}
+
+
+/* Initial entry point code for the dynamic linker.
+   The C function `_dl_start' is the real entry point;
+   its return value is the user program's entry point.  */
+
+#define RTLD_START #error need some startup code