Update. cvs/libc-ud-970712

1997-07-13 01:18  Ulrich Drepper  <drepper@cygnus.com>

	* setjmp/setjmp.h: Define _setjmp and _longjmp also if __USE_XOPEN.

	* sysdeps/unix/sysv/linux/bits/ipc.h: Fix comment.
	* sysdeps/unix/sysv/linux/bits/msq.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/sem.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/shm.h: Likewise.

	* time/Makefile (routines): Add getdate.
	* time/time.h: Add prototype for getdate and getdate_r.
	* time/getdate.c: New file.
	Provided by Mark Kettenis <kettenis@phys.uva.nl>.

1997-06-30 14:49  H.J. Lu  <hjl@gnu.ai.mit.edu>

	From Ralf Baechle <ralf@informatik.uni-koblenz.de> on
	Sat Jun 21 18:11:21 1997:

	* sysdeps/unix/sysv/linux/syscalls.list (swapon): Add __swapon alias.
	(swapoff): New.

	* elf/Makefile: Add linker script support.
	(headers): Add bits/dlfcn.h.

	* elf/dl-load.c (MAP_BASE_ADDR): New.

	* elf/dlfcn.h: Include <bits/dlfcn.h>.

	* elf/elf.h: Add MIPS support.

	* sysdeps/generic/Dist: Add entry.h.
	* sysdeps/generic/entry.h: New, define the entry symbol.

	* elf/rtld.c (_start): Include <entry.h>.  Change to ENTRY_POINT.
	* sysdeps/generic/dl-sysdep.c (_start): Likewise.
	* mips/elf/start.S (_start): Likewise.

	* sysdeps/mips/bsd-_setjmp.S: Fix PIC.
	* sysdeps/mips/bsd-setjmp.S: Likewise.
	* sysdeps/mips/setjmp.S: Likewise.
	* mips/elf/start.S: Likewise.
	* sysdeps/unix/mips/brk.S: Likewise.
	* sysdeps/unix/mips/sysdep.S: Likewise.
	* sysdeps/unix/mips/sysdep.h: Likewise.
	* sysdeps/unix/mips/wait.S: Likewise.

	* sysdeps/mips/dl-machine.h: Update for Linux/MIPS.
	* sysdeps/mips/fpu_control.h: Likewise.

	* sysdeps/generic/bits/dlfcn.h: New file.

	* sysdeps/mips/rtld-ldscript.in: New for Linux/MIPS.
	* sysdeps/mips/rtld-parms: Likewise.
	* sysdeps/mips/bits/dlfcn.h: Likewise.
	* sysdeps/mips/mips64/rtld-parms: Likewise.
	* sysdeps/mips/mipsel/rtld-parms: Likewise.
	* sysdeps/unix/sysv/linux/mips/Dist: Likewise.
	* sysdeps/unix/sysv/linux/mips/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/mips/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/mips/entry.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/fpregdef.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/fxstat.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/kernel_sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/kernel_stat.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/kernel_termios.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/lxstat.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/regdef.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sgidefs.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/mips/ustat.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/xmknod.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/xstat.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/endian.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/fcntl.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/ioctl-types.h:
	* sysdeps/unix/sysv/linux/mips/bits/ipc.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/shm.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/signum.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/socket.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/stat.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/statfs.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/time.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sys/acct.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sys/asm.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sys/cachectl.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sys/fpregdef.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sys/procfs.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sys/regdef.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sys/syscall.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sys/sysmips.h: Likewise.

1997-04-09 19:05  H.J. Lu (hjl@gnu.ai.mit.edu)

	* isomac.c (xstrndup): New, use it instead of strndup ().

1997-07-02 08:55  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* sysdeps/i386/dl-machine.h (elf_machine_rel): Print
	the program name for different sizes.

1997-07-10 15:47  Fila Kolodny  <fila@ibi.com>

	* nis/ypclnt.c: Change references to MAXHOSTNAMELEN to NIS_MAXNAMELEN.
	Add include of rpcsvc/nis.h.
	* inet/getnameinfo.c: Delete references to MAXHOSTNAMELEN.
	* sysdeps/posix/getaddrinfo.c: Likewise.
	Change size of variable buffer to be big enough to hold an IPv6
	address in printable format.

1997-07-12 18:47  Ulrich Drepper  <drepper@cygnus.com>

	* assert/assert.h [!NDEBUG] (assert, assert_perror): Don't use ||
	and && in tests to allow use in C++ code which overloads these
	operators.  Reported by Istvan Marko <istvan@cmdmail.amd.com>.

	* configure.in: Move mips64* recognition before mips*.
	Patch by Zack Weinberg <zack@rabi.phys.columbia.edu>.

1997-07-03 20:44  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makerules (lib%.so, $(common-objpfx)libc.so): Don't use
	automatic variables in dependency lists.
	(build-shlib): Always filter out the version script file.
	* extra-lib.mk ($(objpfx)$(lib).so): Depend on version script.

1997-07-12 17:56  Ulrich Drepper  <drepper@cygnus.com>

	* login/login.c (tty_name): Test return value of ttyname_r for !=
	0, not < 0.
	* misc/ttyslot.c (ttyslot): Test return value of ttyname_r for ==
	0, not >= 0.
	* sysdeps/unix/getlogin.c (getlogin): Test return value of
	ttyname_r for != 0.
	* sysdeps/unix/getlogin_r.c (getlogin_r): Likewise.

1997-07-10  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* login/utmp_file.c (getutline_r_file): Fix type: compare with
	*result.

1997-07-11 00:21  Mark Kettenis  <kettenis@phys.uva.nl>

	* login/Makefile (headers): Add utmpx.h and bits/utmpx.h.

1997-07-09 19:21  Mark Kettenis  <kettenis@phys.uva.nl>

	* login/programs/utmpd.c, login/programs/database.c,
	login/programs/request.c: Prepare messages for
	internationalization.

	* login/programs/utmpd.c:
	(main): Change handling of errors in opening the database.
	* login/programs/database.c:
	(open_database, synchronize_dtatabase, initialize_database):
	Properly handle errors.
	(get_mtime): Use fstat instead of stat.  All callers changed.

	* login/getutent_r.c: Make setutxent a weak alias for __setutxent.
	* login/getutent.c: Rename getutent to __getutent and make
	getutent a weak alias.
	Make getutxent a weak alias for	__getutent.
	* login/utmpx.h: New file.
	* sysdeps/gnu/bits/utmp.h: Cleanup.  Added comments.
	* sysdeps/gnu/bits/utmpx.h: New file.

	* stdio-common/strops.c: Partialy undo last change.  Will need
	more investigation.

5 files changed, 46 insertions, 13 deletions

diff --git a/elf/Makefile b/elf/Makefile
index ef9207c07b..269a872969 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -20,7 +20,7 @@
 
 subdir		:= elf
 
-headers		= elf.h bits/elfclass.h link.h dlfcn.h
+headers		= elf.h bits/elfclass.h bits/dlfcn.h link.h dlfcn.h
 routines	= $(dl-routines) dl-open dl-close dl-symbol dl-support \
 		  dl-version enbl-secure
 
@@ -88,6 +88,30 @@ $(objpfx)dl-allobjs.so: $(rtld-routines:%=$(objpfx)%.so)
 $(objpfx)librtld.so: $(objpfx)dl-allobjs.so $(common-objpfx)libc_pic.a
 	$(reloc-link) '-Wl,-(' $^ -lgcc '-Wl,-)'
 
+# Do we need a linker script?
+rtld-ldscript-in := $(firstword $(wildcard $(+sysdep_dirs:%=%/rtld-ldscript.in)))
+ifneq (,$(rtld-ldscript-in))
+LDFLAGS-rtld = -T $(objpfx)rtld-ldscript
+
+before-compile += $(objpfx)rtld-ldscript
+rtld-parms = $(wildcard $(+sysdep_dirs:%=%/rtld-parms))
+include $(rtld-parms)
+generated += rtld-ldscript
+$(objpfx)rtld-ldscript: $(rtld-ldscript-in) $(rtld-parms)
+	sed -e 's#@@rtld-oformat@@#$(rtld-oformat)#' \
+	    -e 's#@@rtld-arch@@#$(rtld-arch)#' \
+	    -e 's#@@rtld-entry@@#$(rtld-entry)#' \
+	    -e 's#@@rtld-base@@#$(rtld-base)#' $< >$@
+
+$(objpfx)ld.so: $(objpfx)librtld.so $(objpfx)rtld-ldscript
+	$(rtld-link) -Wl,-soname=$(rtld-installed-name)
+
+define rtld-link
+$(LINK.o) -nostdlib -nostartfiles -shared -o $@ \
+	  -Wl,-rpath=$(default-rpath) $(LDFLAGS-rtld) \
+	  $(filter-out $(objpfx)rtld-ldscript,$^)
+endef
+else
 $(objpfx)ld.so: $(objpfx)librtld.so
 	$(rtld-link) -Wl,-soname=$(rtld-installed-name)
 
@@ -95,6 +119,7 @@ define rtld-link
 $(LINK.o) -nostdlib -nostartfiles -shared -o $@ \
 	  -Wl,-rpath=$(default-rpath) $^
 endef
+endif
 
 # The dl code in the static libc needs a default library path.
 CFLAGS-dl-support.c = -D'DEFAULT_RPATH="$(default-rpath)"'
diff --git a/elf/dl-load.c b/elf/dl-load.c
index 10cc074a6a..87859219f1 100644
--- a/elf/dl-load.c
+++ b/elf/dl-load.c
@@ -44,6 +44,15 @@
 #define MAP_COPY	MAP_PRIVATE
 #endif
 
+/* Some systems link their relocatable objects for another base address
+   than 0.  We want to know the base address for these such that we can
+   subtract this address from the segment addresses during mapping.
+   This results in a more efficient address space usage.  Defaults to
+   zero for almost all systems.  */
+#ifndef MAP_BASE_ADDR
+#define MAP_BASE_ADDR(l)	0
+#endif
+
 
 #include <endian.h>
 #if BYTE_ORDER == BIG_ENDIAN
@@ -335,7 +344,8 @@ _dl_map_object_from_fd (char *name, int fd, char *realname,
  	caddr_t mapat;
 	ElfW(Addr) mappref;
 	size_t maplength = loadcmds[nloadcmds - 1].allocend - c->mapstart;
-	mappref = ELF_PREFERRED_ADDRESS (loader, maplength, c->mapstart);
+	mappref = (ELF_PREFERRED_ADDRESS (loader, maplength, c->mapstart)
+		   - MAP_BASE_ADDR (l));
 	mapat = map_segment (mappref, maplength, c->prot, 0, c->mapoff);
 	l->l_addr = (ElfW(Addr)) mapat - c->mapstart;
 
diff --git a/elf/dlfcn.h b/elf/dlfcn.h
index 9b06988e96..9db5fb4635 100644
--- a/elf/dlfcn.h
+++ b/elf/dlfcn.h
@@ -22,15 +22,8 @@
 
 #include <features.h>
 
-/* The MODE argument to `dlopen' contains one of the following: */
-#define RTLD_LAZY	0x001	/* Lazy function call binding.  */
-#define RTLD_NOW	0x002	/* Immediate function call binding.  */
-#define	RTLD_BINDING_MASK 0x3	/* Mask of binding time value.  */
-
-/* If the following bit is set in the MODE argument to `dlopen',
-   the symbols of the loaded object and its dependencies are made
-   visible as if the object were linked directly into the program.  */
-#define RTLD_GLOBAL	0x100
+/* Collect various system dependand definitions and declarations.  */
+#include <bits/dlfcn.h>
 
 /* If the first argument of `dlsym' is set to RTLD_NEXT the run-time
    address of the symbol called NAME in the next shared object is
diff --git a/elf/elf.h b/elf/elf.h
index 63d36b141c..d01bc90c90 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -741,6 +741,8 @@ typedef struct
 #define E_MIPS_ARCH_1	  0x00000000	/* -mips1 code.  */
 #define E_MIPS_ARCH_2	  0x10000000	/* -mips2 code.  */
 #define E_MIPS_ARCH_3	  0x20000000	/* -mips3 code.  */
+#define E_MIPS_ARCH_4	  0x30000000	/* -mips4 code.  */
+#define E_MIPS_ARCH_5	  0x40000000	/* -mips5 code.  */
 
 /* Special section indices.  */
 
@@ -810,6 +812,8 @@ typedef struct
 /* Legal values for p_type field of Elf32_Phdr.  */
 
 #define PT_MIPS_REGINFO	0x70000000	/* Register usage information */
+#define PT_MIPS_RTPROC  0x70000001	/* Runtime procedure table. */
+#define PT_MIPS_OPTIONS 0x70000002
 
 /* Legal values for d_tag field of Elf32_Dyn.  */
 
diff --git a/elf/rtld.c b/elf/rtld.c
index 22c1059fd2..a025757e05 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -25,6 +25,7 @@
 #include <sys/mman.h>		/* Check if MAP_ANON is defined.  */
 #include <stdio-common/_itoa.h>
 #include <assert.h>
+#include <entry.h>
 #include "dynamic-link.h"
 
 
@@ -137,7 +138,7 @@ _dl_start (void *arg)
 /* Now life is peachy; we can do all normal operations.
    On to the real work.  */
 
-void _start (void);
+void ENTRY_POINT (void);
 
 /* Some helper functions.  */
 
@@ -268,7 +269,7 @@ dl_main (const ElfW(Phdr) *phdr,
   /* Set up a flag which tells we are just starting.  */
   _dl_starting_up = 1;
 
-  if (*user_entry == (ElfW(Addr)) &_start)
+  if (*user_entry == (ElfW(Addr)) &ENTRY_POINT)
     {
       /* Ho ho.  We are not the program interpreter!  We are the program
 	 itself!  This means someone ran ld.so as a command.  Well, that