Tue May 28 04:38:10 1996 Ulrich Drepper <drepper@cygnus.com>

	* limits.h: Change MB_LEN_MAX to 6.  A 31-bit ISO 10646
	character in UTF-8 encoding has that many bytes.

	* locale/langinfo.h: New element _NL_CTYPE_MB_CUR_MAX.
	* locale/categories.def: Add description of field _NL_CTYPE_MB_CUR_MAX.
	* locale/Makefile (routines): Add mb_cur_max.
	* locale/mb_cur_max.c: New file.  This function gets called
	when the macro MB_CUR_MAX is used.
	* locale/C-ctype.c: Initialize new mb_cur_max field.
	* locale/localeinfo.h: Change magic value because of incompatible
        change.
	* locale/programs/ld-ctype.c: Determine value of mb_cur_max
        according to current character set and write it out with the rest.
	* stdlib/stdlib.h (MB_CUR_MAX): Not constant anymore.  Get value
        according to currently used locale for catefory LC_CTYPE by
        calling the function __ctype_get_mb_cur_max.

Tue May 28 03:27:46 1996  Ulrich Drepper  <drepper@cygnus.com>

	* FAQ:  Fix some typos.
	Tell that for Linux the kernel header files are necessary.

	* PROJECTS: New file.  List of open jobs for glibc.
	* Makefile (distribute): Add PROJECTS.

	* crypt/GNUmakefile (headers): New variable.  Mention crypt.h.
	* crypt/crypt.h: Header for crypt functions.

	* elf/elf.h: Add some new constants from recent Cygnus ELF
	header files.

	* login/getutid_r.c: Test for correct type.
	Don't depend on ut_type and ut_id unless _HAVE_UT_TYPE and
	_HAVE_UT_ID resp. are defined.
	Make really compliant with specification.

	* login/getutline_r.c, login/pututline_r.c: Don't depend on
	ut_type and ut_id unless _HAVE_UT_TYPE and _HAVE_UT_ID resp. are
	defined.
	Make really compliant with specification.

	* login/setutent_r.c: Don't depend on ut_type and ut_id unless
	_HAVE_UT_TYPE and _HAVE_UT_ID resp. are defined.

	* login/login.c, login/logout.c, login/logwtmp.c: Complete
	rewrite.  Now based on getut*/setut* functions.

	* stdlib/strtol.c: Undo changes of Wed May 22 01:48:54 1996.
	This prevented using this file in other GNU packages.

	* sysdeps/gnu/utmpbits.h: Define _HAVE_UT_TYPE, _HAVE_UT_ID,
	and _HAVE_UT_TV because struct utmp has these members.

	* sysdeps/libm-i387/e_exp.S: Correct exp(+-Inf) case.

	* utmp.h: New file.  Wrapper around login/utmp.h.

	* elf/dl-error.c (struct catch): New type.
	(catch): New static variable, struct catch *.
	(catch_env, signalled_errstring, signalled_objname): Variables removed.
	(_dl_signal_error): If CATCH is non-null, set its errstring and
	objname members and jump to CATCH->env.  If it is null, call
	_dl_sysdep_fatal with a standard message.
	* elf/rtld.c (dl_main): Explode `doit' function into dl_main's body.
	No longer use _dl_catch_error.

28 files changed, 900 insertions, 562 deletions

diff --git a/ChangeLog b/ChangeLog
index 8e52bf5d13..23c069582a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,73 @@
+Tue May 28 04:38:10 1996  Ulrich Drepper  <drepper@cygnus.com>
+
+	* limits.h: Change MB_LEN_MAX to 6.  A 31-bit ISO 10646
+	character in UTF-8 encoding has that many bytes.
+
+	* locale/langinfo.h: New element _NL_CTYPE_MB_CUR_MAX.
+	* locale/categories.def: Add description of field _NL_CTYPE_MB_CUR_MAX.
+	* locale/Makefile (routines): Add mb_cur_max.
+	* locale/mb_cur_max.c: New file.  This function gets called
+	when the macro MB_CUR_MAX is used.
+	* locale/C-ctype.c: Initialize new mb_cur_max field.
+	* locale/localeinfo.h: Change magic value because of incompatible
+        change.
+	* locale/programs/ld-ctype.c: Determine value of mb_cur_max
+        according to current character set and write it out with the rest.
+	* stdlib/stdlib.h (MB_CUR_MAX): Not constant anymore.  Get value
+        according to currently used locale for catefory LC_CTYPE by
+        calling the function __ctype_get_mb_cur_max.
+
+Tue May 28 03:27:46 1996  Ulrich Drepper  <drepper@cygnus.com>
+
+	* FAQ:  Fix some typos.
+	Tell that for Linux the kernel header files are necessary.
+
+	* PROJECTS: New file.  List of open jobs for glibc.
+	* Makefile (distribute): Add PROJECTS.
+
+	* crypt/GNUmakefile (headers): New variable.  Mention crypt.h.
+	* crypt/crypt.h: Header for crypt functions.
+
+	* elf/elf.h: Add some new constants from recent Cygnus ELF
+	header files.
+
+	* login/getutid_r.c: Test for correct type.
+	Don't depend on ut_type and ut_id unless _HAVE_UT_TYPE and
+	_HAVE_UT_ID resp. are defined.
+	Make really compliant with specification.
+
+	* login/getutline_r.c, login/pututline_r.c: Don't depend on
+	ut_type and ut_id unless _HAVE_UT_TYPE and _HAVE_UT_ID resp. are
+	defined.
+	Make really compliant with specification.
+
+	* login/setutent_r.c: Don't depend on ut_type and ut_id unless
+	_HAVE_UT_TYPE and _HAVE_UT_ID resp. are defined.
+
+	* login/login.c, login/logout.c, login/logwtmp.c: Complete
+	rewrite.  Now based on getut*/setut* functions.
+
+	* stdlib/strtol.c: Undo changes of Wed May 22 01:48:54 1996.
+	This prevented using this file in other GNU packages.
+
+	* sysdeps/gnu/utmpbits.h: Define _HAVE_UT_TYPE, _HAVE_UT_ID,
+	and _HAVE_UT_TV because struct utmp has these members.
+
+	* sysdeps/libm-i387/e_exp.S: Correct exp(+-Inf) case.
+
+	* utmp.h: New file.  Wrapper around login/utmp.h.
+
 Tue May 28 13:11:19 1996  Roland McGrath  <roland@delasyd.gnu.ai.mit.edu>
 
+	* elf/dl-error.c (struct catch): New type.
+	(catch): New static variable, struct catch *.
+	(catch_env, signalled_errstring, signalled_objname): Variables removed.
+	(_dl_signal_error): If CATCH is non-null, set its errstring and
+	objname members and jump to CATCH->env.  If it is null, call
+	_dl_sysdep_fatal with a standard message.
+	* elf/rtld.c (dl_main): Explode `doit' function into dl_main's body.
+	No longer use _dl_catch_error.
+
 	* Makerules (sed-remove-objpfx): Avoid extra space in regexp due to
 	continuation line.
 
diff --git a/FAQ b/FAQ
index 9ebd95d7a5..f85b255bbc 100644
--- a/FAQ
+++ b/FAQ
@@ -102,8 +102,8 @@ from your favourite mirror of prep.ai.mit.edu.
 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
 [Q5]	``Do I need a special linker or archiver?''
 
-[A5] {UD} If your native versions are not too buggy you can work with
-them.  But GNU libc works best with GNU binutils.
+[A5] {UD} If your native versions are not too buggy you can probably
+work with them.  But GNU libc works best with GNU binutils.
 
 On systems where the native linker does not support weak symbols you
 will not get a really ISO C compliant C library.  Generally speaking
@@ -119,7 +119,7 @@ Older releases are known to have bugs that affect building the GNU C library.
 
 [A6] {UD} Yes, there are some more :-).
 
-* lots of diskspace (for i386-linux this means, e.g., ~70MB)
+* lots of diskspace (for i386-linux this means, e.g., ~70MB).
 
   You should avoid compiling on a NFS mounted device.  This is very
   slow.
@@ -130,6 +130,12 @@ Older releases are known to have bugs that affect building the GNU C library.
   If you are interested in some more measurements let me know.
 
 
+* When compiling for Linux:
+
+  + the header files of the Linux kernel must be available in the
+    search path of the CPP as <linux/*.h> and <asm/*.h>.
+
+
 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
 [Q7]	``When I run `nm libc.so|grep " U "' on the produced library
 	  I still find unresolved symbols?  Can this be ok?''
@@ -138,7 +144,7 @@ Older releases are known to have bugs that affect building the GNU C library.
 symbols:
 
 * magic symbols automatically generated by the linker.  Names are
-  often like __start_* and __stop_*-
+  often like __start_* and __stop_*
 
 * symbols resolved by using libgcc.a
   (__udivdi3, __umoddi3, or similar)
@@ -161,14 +167,18 @@ and with cleanliness.  With the introduction of a new version number these
 errors now can be corrected.  Here is a list of the known source code
 incompatibilities:
 
-* _GNU_SOURCE: glibc does not automatically define _GNU_SOURCE.  Thus, if a
-  program depends on GNU extensions, it is necessary to compile it with C
-  compiler option -D_GNU_SOURCE, or better, to put `#define _GNU_SOURCE' at
-  the beginning of your source files, before any C library header files are
-  included.  This difference normally mainfests itself in the form of
-  missing prototypes and/or data type definitions.  Thus, if you get such
-  errors, the first thing you should do is try defining _GNU_SOURCE and see
-  if that makes the problem go away.
+* _GNU_SOURCE: glibc does not automatically define _GNU_SOURCE.  Thus,
+  if a program depends on GNU extensions or some other non-standard
+  functionality, it is necessary to compile it with C compiler option
+  -D_GNU_SOURCE, or better, to put `#define _GNU_SOURCE' at the beginning
+  of your source files, before any C library header files are included.
+  This difference normally manifests itself in the form of missing
+  prototypes and/or data type definitions.  Thus, if you get such errors,
+  the first thing you should do is try defining _GNU_SOURCE and see if
+  that makes the problem go away.
+
+  For more information consult the file `NOTES' part of the GNU C
+  library sources.
 
 * reboot(): GNU libc sanitizes the interface of reboot() to be more
   compatible with the interface used on other OSes.  In particular,
@@ -209,7 +219,7 @@ Answers were given by:
 {DMT} David Mosberger-Tang, <davidm@AZStarNet.com>
 
 Amended by:
-{RM} Roland McGrath <roland@gnu.ai.mit.edu>
+{RM} Roland McGrath, <roland@gnu.ai.mit.edu>
 
 Local Variables:
  mode:text
diff --git a/Makefile b/Makefile
index 8ff7284d73..c33e40f6b2 100644
--- a/Makefile
+++ b/Makefile
@@ -222,8 +222,8 @@ parent_echo-distinfo:
 
 # Make the distribution tarfile.
 
-distribute  := README INSTALL FAQ NOTES COPYING.LIB COPYING NEWS	\
-	       ChangeLog ChangeLog.[0-9]				\
+distribute  := README INSTALL FAQ NOTES NEWS PROJECTS			\
+	        COPYING.LIB COPYING ChangeLog ChangeLog.[0-9]		\
 	       Makefile Makeconfig Makerules Rules Make-dist MakeTAGS	\
 	       extra-lib.mk o-iterator.mk				\
 	       ansidecl.h mkinstalldirs move-if-change install-sh	\
diff --git a/PROJECTS b/PROJECTS
new file mode 100644
index 0000000000..3150ce11cf
--- /dev/null
+++ b/PROJECTS
@@ -0,0 +1,98 @@
+Open jobs for finishing GNU libc:
+---------------------------------
+Status: May 1996
+
+If you have time and talent to take over any of the jobs below please
+contact <bug-glibc@prep.ai.mit.edu>
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+[ 1] Port to new platforms or test current version on formerly supported
+     platforms.
+
+
+[ 2] Test compliance with standards.  If you have access to recent
+     standards (IEEE, ISO, ANSI, X/Open, ...) and/or test suites you
+     could do some checks as the goal is to be compliant with all
+     standards if they do not contradict each other.
+
+
+[ 3] Write translations for the GNU libc message for the so far
+     unsupported languages.  GNU libc is fully internationalized and
+     users can immediately benefit from this.
+
+     Take a look at the matrix in
+	ftp://prep.ai.mit.edu/pub/gnu/ABOUT-NLS
+     for the current status (of course better use a mirror of prep).
+
+
+[ 4] Write wordexp() function; this is described in POSIX.2, The
+     header <wordexp.h> already exists.
+
+     Implementation idea: use some functions from bash.
+
+
+[ 5] Write reentrent versions of crypt() et.al.
+
+     Implementation idea: Define in <crypt.h>
+
+	struct crypt_data
+	{
+	  <... all the needed data ...>
+	};
+
+     and define additional functions
+
+	char *crypt_r (__const char *__key, __const char *__salt,
+		       struct crypt_data *__data);
+
+	void setkey_r (__const char *__key, struct crypt_data *__data);
+
+	void encrypt_r (char *__block, int __edflag,
+			struct crypt_data *__data);
+
+     If possible the non-reentrent functions should use the reentrent
+     ones.
+
+     Because of the US export restrictions it might be a good idea if
+     some non-american person does this job.
+
+
+[ 6] Write `long double' versions of the math functions.  This should be
+     done in collaboration with the NetBSD and FreeBSD people.
+
+     The libm is in fact fdlibm (not the same as in Linux libc).
+
+
+[ 7] If you enjoy assembler programming (as I do --drepper :-) you might
+     be interested in writing optimized versions for some functions.
+     Especially the string handling functions can be optimized a lot.
+
+     Take a look at
+
+	Faster String Functions
+	Henry Spencer, University of Toronto
+	Usenix Winter '92, pp. 419--428
+
+     or just ask.  Currently mostly i?86 optimized versions exist.
+
+
+[ 8] Write nftw() function.  Perhaps it might be good to reimplement the
+     ftw() function as well to share most of the code.
+
+
+[ 9] Write AVL-tree based tsearch() et.al. functions.  Currently only
+     a very simple algorithm is used.
+
+
+[10] Extend regex and/or rx to work with wide characters.
+
+
+[11] Add mmap() support to malloc().
+     Doug Lea's malloc implementation might give some ideas.  Perhaps
+     switching completly to his implementation is an option if it
+     a) can work without mmap() support (not all system GNU libc
+	is running on have mmap)
+     b) is without mmap support at least as fast as the current
+	implementation
+     c) will be extended with the current hooks and additional functions
diff --git a/elf/dl-error.c b/elf/dl-error.c
index a5c861190f..737bba7421 100644
--- a/elf/dl-error.c
+++ b/elf/dl-error.c
@@ -1,5 +1,5 @@
 /* Error handling for runtime dynamic linker.
-Copyright (C) 1995 Free Software Foundation, Inc.
+Copyright (C) 1995, 1996 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
@@ -20,18 +20,47 @@ Cambridge, MA 02139, USA.  */
 #include <stddef.h>
 #include <link.h>
 #include <setjmp.h>
+#include <string.h>
+
+/* This structure communicates state between _dl_catch_error and
+   _dl_signal_error.  */
+struct catch
+  {
+    const char *errstring, *objname; /* Error detail filled in here.  */
+    jmp_buf env;		/* longjmp here on error.  */
+  };
+
+/* This points to such a structure during a call to _dl_catch_error.
+   During implicit startup and run-time work for needed shared libraries,
+   this is null.  */
+static struct catch *catch;
 
-static jmp_buf catch_env;
-static const char *signalled_errstring, *signalled_objname;
 
 void
 _dl_signal_error (int errcode,
 		  const char *objname,
 		  const char *errstring)
 {
-  signalled_errstring = errstring ?: "DYNAMIC LINKER BUG!!!";
-  signalled_objname = objname;
-  longjmp (catch_env, errcode ?: -1);
+  if (! errstring)
+    errstring = "DYNAMIC LINKER BUG!!!";
+
+  if (catch)
+    {
+      /* We are inside _dl_catch_error.  Return to it.  */
+      catch->errstring = errstring;
+      catch->objname = objname;
+      longjmp (catch->env, errcode ?: -1);
+    }
+  else
+    {
+      /* Lossage while resolving the program's own symbols is always fatal.  */
+      extern char **_dl_argv;	/* Set in rtld.c at startup.  */
+      _dl_sysdep_fatal (_dl_argv[0] ?: "<program name unknown>",
+			": error in loading shared libraries\n",
+			objname ?: "", objname ? ": " : "",
+			errstring, errcode ? ": " : "",
+			errcode ? strerror (errcode) : "", "\n", NULL);
+    }
 }
 
 int
@@ -40,18 +69,20 @@ _dl_catch_error (const char **errstring,
 		 void (*operate) (void))
 {
   int errcode;
+  struct catch c = { errstring: NULL, objname: NULL };
 
-  signalled_errstring = signalled_objname = NULL;
-  errcode = setjmp (catch_env);
+  errcode = setjmp (c.env);
   if (errcode == 0)
     {
+      catch = &c;
       (*operate) ();
+      catch = NULL;
       *errstring = *objname = NULL;
       return 0;
     }
 
   /* We get here only if we longjmp'd out of OPERATE.  */
-  *errstring = signalled_errstring;
-  *objname = signalled_objname;
+  *errstring = c.errstring;
+  *objname = c.objname;
   return errcode == -1 ? 0 : errcode;
 }
diff --git a/elf/elf.h b/elf/elf.h
index a78432039f..2b41ff0cbc 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -119,6 +119,7 @@ typedef struct
 #define EM_SPARC64     11		/* SPARC v9 (not official) 64-bit */
 
 #define EM_PARISC      15		/* HPPA */
+#define EM_PPC         20		/* PowerPC */
 
 /* If it is necessary to assign new unofficial EM_* values, please
    pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the
@@ -255,6 +256,10 @@ typedef struct
 #define ELF32_R_TYPE(val)		((val) & 0xff)
 #define ELF32_R_INFO(sym, type)		(((sym) << 8) + ((type) & 0xff))
 
+#define ELF64_R_SYM(i)			((i) >> 32)
+#define ELF64_R_TYPE(i)			((i) & 0xffffffff)
+#define ELF64_R_INFO(sym,type)		(((sym) << 32) + (type))
+
 /* Program segment header.  */
 
 typedef struct {
@@ -288,6 +293,17 @@ typedef struct {
 #define PF_R		(1 << 2)	/* Segment is readable */
 #define PF_MASKPROC	0xf0000000	/* Processor-specific */
 
+/* Legal values for note segment descriptor types for core files. */
+
+#define NT_PRSTATUS	1		/* Contains copy of prstatus struct */
+#define NT_FPREGSET	2		/* Contains copy of fpregset struct */
+#define NT_PRPSINFO	3		/* Contains copy of prpsinfo struct */
+
+/* Legal values for the  note segment descriptor types for object files.  */
+
+#define NT_VERSION	1		/* Contains a version string.  */
+
+
 /* Dynamic section entry.  */
 
 typedef struct
@@ -521,9 +537,17 @@ typedef struct
 #define EF_MIPS_CPIC	  4		/* Uses PIC calling sequence */
 #define EF_MIPS_ARCH	  0xf0000000	/* MIPS architecture level */
 
+/* Legal values for MIPS architecture level.  */
+
+#define E_MIPS_ARCH_1	  0x00000000	/* -mips1 code.  */
+#define E_MIPS_ARCH_2	  0x10000000	/* -mips2 code.  */
+#define E_MIPS_ARCH_3	  0x20000000	/* -mips3 code.  */
+
 /* Special section indices.  */
 
 #define SHN_MIPS_ACOMMON 0xff00		/* Allocated common symbols */
+#define SHN_MIPS_TEXT	 0xff01		/* Allocated test symbol.  */
+#define SHN_MIPS_DATA	 0xff02		/* Allocated data symbol.  */
 #define SHN_MIPS_SCOMMON 0xff03		/* Small common symbols */
 #define SHN_MIPS_SUNDEFINED 0xff04	/* Small undefined symbols */
 
@@ -535,6 +559,9 @@ typedef struct
 #define SHT_MIPS_UCODE	  0x70000004	/* Reserved for SGI/MIPS compilers */
 #define SHT_MIPS_DEBUG	  0x70000005	/* MIPS ECOFF debugging information */
 #define SHT_MIPS_REGINFO  0x70000006	/* Register usage information */
+#define SHT_MIPS_OPTIONS  0x7000000d	/* Miscellaneous options.  */
+#define SHT_MIPS_DWARF    0x7000001e	/* DWARF debugging information.  */
+#define SHT_MIPS_EVENTS	  0x70000021	/* Event section.  */
 
 /* Legal values for sh_flags field of Elf32_Shdr.  */
 
@@ -602,7 +629,8 @@ typedef struct
 #define DT