Update. cvs/libc-ud-970430 cvs/libc-970619 cvs/libc-970618 cvs/libc-970617 cvs/libc-970616 cvs/libc-970615 cvs/libc-970614 cvs/libc-970613 cvs/libc-970612 cvs/libc-970611 cvs/libc-970610 cvs/libc-970609 cvs/libc-970608 cvs/libc-970607 cvs/libc-970606 cvs/libc-970605 cvs/libc-970604 cvs/libc-970603 cvs/libc-970602 cvs/libc-970601 cvs/libc-970531 cvs/libc-970530 cvs/libc-970529 cvs/libc-970528 cvs/libc-970527 cvs/libc-970526 cvs/libc-970525 cvs/libc-970524 cvs/libc-970523 cvs/libc-970522 cvs/libc-970521 cvs/libc-970520 cvs/libc-970519 cvs/libc-970518 cvs/libc-970517 cvs/libc-970516 cvs/libc-970515 cvs/libc-970514 cvs/libc-970513 cvs/libc-970512 cvs/libc-970511 cvs/libc-970510 cvs/libc-970509 cvs/libc-970508 cvs/libc-970507 cvs/libc-970506 cvs/libc-970505 cvs/libc-970504 cvs/libc-970503 cvs/libc-970502 cvs/libc-970501

1997-04-30 17:35  Ulrich Drepper  <drepper@cygnus.com>

	* math/libm-test.c: Implement test for exceptions.
	Partly due to Andreas Jaeger.
	(csin_test): New function.
	* sysdeps/libm-i387/s_cexp.S: Raise correct exceptions.
	* sysdeps/libm-i387/s_cexpf.S: Likewise.
	* sysdeps/libm-i387/s_cexpl.S: Likewise.
	* sysdeps/libm-ieee754/s_ccos.c: Likewise.
	* sysdeps/libm-ieee754/s_ccosf.c: Likewise.
	* sysdeps/libm-ieee754/s_ccosl.c: Likewise.
	* sysdeps/libm-ieee754/s_ccosh.c: Likewise.
	* sysdeps/libm-ieee754/s_ccoshf.c: Likewise.
	* sysdeps/libm-ieee754/s_ccoshl.c: Likewise.
	* sysdeps/libm-ieee754/s_cexp.c: Likewise.
	* sysdeps/libm-ieee754/s_cexpf.c: Likewise.
	* sysdeps/libm-ieee754/s_cexpl.c: Likewise.
	* sysdeps/libm-ieee754/s_csinh.c: Likewise.
	* sysdeps/libm-ieee754/s_csinhf.c: Likewise.
	* sysdeps/libm-ieee754/s_csinhl.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanh.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanhf.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanhl.c: Likewise.

	* sysdeps/libm-ieee754/s_ccosh.c: Correct computation.
	* sysdeps/libm-ieee754/s_ccoshf.c: Likewise.
	* sysdeps/libm-ieee754/s_ccoshl.c: Likewise.
	* sysdeps/libm-ieee754/s_csinh.c: Likewise.
	* sysdeps/libm-ieee754/s_csinhf.c: Likewise.
	* sysdeps/libm-ieee754/s_csinhl.c: Likewise.

	* sysdeps/libm-ieee754/s_csin.c: Rewrite.
	* sysdeps/libm-ieee754/s_csinf.c: Likewise.
	* sysdeps/libm-ieee754/s_csinl.c: Likewise.

	* stdlib/random_r.c (__srandom_r): Don't use seed 0.  Use 1 in this
	case.

	* sysdeps/i386/dl-machine.h (elf_machine_load_address): Use notation
	for local label.

	* time/strftime.c (add): Respect `0' padding flag.
	Reported by Richard Stallman <rms@gnu.ai.mit.edu>.

1997-04-30 15:46  Ulrich Drepper  <drepper@cygnus.com>

	* Makeconfig (start-installed-name): Define here, not in csu/Makefile.
	Use in +link macro.
	* csu/Makefile (distribute): Add abi-note.S and abi-tag.h.
	(start-installed-name): Don't define here.
	When ELF generate file named by start-installed-name from start.o
	and abi-note.o.
	* csu/abi-note.S: New file.
	* sysdeps/stub/abi-tag.h: New file.
	* sysdpes/unix/sysv/linux/abi-tag.h: New file.
	Patches by Roland McGrath <roland@gnu.ai.mit.edu>.

1997-04-30 01:32  Ulrich Drepper  <drepper@cygnus.com>

	* manual/stdio.texi: Use @vtable where possible.
	Add TeX version of @multitable since texi2dvi cannot handle them
	correct in the moment.

	* po/de.po: Update.

1997-04-29 21:06  Ulrich Drepper  <drepper@cygnus.com>

	* Makeconfig: Don't set cross-compiling based on $(BUILD_CC) != $(CC).
	* config.make.in: Set cross-compiling from configure result.
	* configure.in: Emit definition of `cross_compiling'.
	Patches by Marcus G. Daniels <marcus@cathcart.sysc.pdx.edu>.

1997-04-27 21:50  Philip Blundell  <pjb27@cam.ac.uk>

	* sysdeps/unix/sysv/linux/net/route.h (struct in6_rtmsg): Use
	correct `int' sizes for struct members.

1997-04-29 19:14  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/libm-i387/e_powf.S Generate invalid exception correctly.
	* sysdeps/libm-i387/e_pow.S: Likewise.
	* sysdeps/libm-i387/e_powl.S: Likewise.

1997-04-23 10:08  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* math/fenv.h: Correct typos.

1997-04-28 10:04  Richard Henderson  <rth@tamu.edu>

	* sysdeps/unix/sysv/linux/alpha/clone.S: Save the function argument
	in t0 rather than a4 to avoid it being clobbered.

1997-04-27 23:52  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* manual/summary.awk: Recognize @defmumblex.

	* manual/signal.texi (Miscellaneous Signals): Use @deftypevrx for
	second description header.

1997-04-27 23:29  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* manual/arith.texi (Floating-Point Classes): Don't indent text,
	makeinfo doesn't like that.

1997-04-27 20:52  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* malloc/obstack.h (obstack_specify_allocation_with_arg,
	obstack_chunkfun, obstack_freefun): Fix casts.

1997-04-27 18:21  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* manual/xtract-typefun.awk: Allow names with only one character.

1997-04-26 14:16  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/netinet/ip_fw.h: Use <netinet/ip_icmp.h>
	not <netinet/icmp.h>.
	Reported by Michael Deutschmann <ldeutsch@mail.netshop.net>.

1997-04-25 12:31  Ulrich Drepper  <drepper@cygnus.com>

	* csu/Makefile ($(objpfx)initfini.s): Add CPPFLAGS, CFLAGS and -g0
	to command line of compiler.
	Patch by Marcus G. Daniels <marcus@sysc.pdx.edu>.

	* sysdeps/generic/sigset.h (__sigandset, __sigorset): Fix typos.
	Patch by Marcus G. Daniels <marcus@sysc.pdx.edu>.

	* signal/signal.h (_sys_siglist, sys_siglist): Use _NSIG, not NSIG
	in declaration.
	Patch by Michael Widenius <monty@tcx.se>.

	* time/strptime.c (strptime_internal): Fix %I format specifier
	being off by one.
	Patch by Mark Kettenis <kettenis@phys.uva.nl>.

1997-04-24 12:18  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* stdlib/lcong48_r.c: Include <limits.h>.
	* stdlib/seed48_r.c: Likewise.

	* stdio-common/printf_size.c (printf_size): Correct type of
	`units' and make robust against future changes.

1997-04-23 18:58  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/libm-ieee754/s_cproj.c: Use isfinite instead of finite.
	* sysdeps/libm-ieee754/s_cprojl.c: Likewise.
	* sysdeps/libm-ieee754/s_cprojf.c: Likewise.

1997-04-23 18:53  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* manual/arith.texi, manual/math.texi: Use @defmumblex for
	additional description headers.
	* manual/xtract-typefun.awk: Recognize them.

1997-04-22 15:58  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* stdio-common/printf_size.c (printf_size): Correct size of array
	units.

2 files changed, 87 insertions, 18 deletions

diff --git a/csu/Makefile b/csu/Makefile
index cba8a4a5f5..9664821ec4 100644
--- a/csu/Makefile
+++ b/csu/Makefile
@@ -36,25 +36,12 @@ omit-deps = $(patsubst %.o,%,$(start-installed-name) g$(start-installed-name) \
 		             $(csu-dummies))
 install-lib = $(start-installed-name) g$(start-installed-name) \
 	      $(csu-dummies)
-distribute = initfini.c gmon-start.c start.c defs.awk
+distribute = initfini.c gmon-start.c start.c defs.awk abi-note.S abi-tag.h
 
 all: # Make this the default target; it will be defined in Rules.
 
 include ../Makeconfig
 
-ifneq ($(elf),yes)
-
-# When not using ELF, there is just one startfile, called crt0.o.
-start-installed-name = crt0.o
-
-else
-
-# In the ELF universe, crt0.o is called crt1.o, and there are
-# some additional bizarre files.
-start-installed-name = crt1.o
-have-initfini = yes
-
-endif
 
 ifeq ($(have-initfini),yes)
 
@@ -75,7 +62,8 @@ $(objpfx)crt%.o: $(objpfx)crt%.S $(objpfx)defs.h
 	$(CC) -c -fPIC -g0 -I$(..) -I$(common-objpfx) -DASSEMBLER $< -o $@
 
 $(objpfx)initfini.s: initfini.c
-	$(CC) -S -fPIC -finhibit-size-directive $(no-exceptions) $< -o $@
+	$(CC) $(CPPFLAGS) $(CFLAGS) -g0 -S -fPIC -finhibit-size-directive \
+              $(no-exceptions) $< -o $@
 
 $(objpfx)crti.S: $(objpfx)initfini.s
 	sed -n -e '1,/@HEADER_ENDS/p' \
@@ -95,19 +83,31 @@ endif
 
 include ../Rules
 
+define link-relocatable
+$(CC) -nostdlib -nostartfiles -r -o $@ $^
+endef
+
 ifndef start-installed-name-rule
+ifeq (yes,$(elf))
+# We link the ELF startfile along with a SHT_NOTE section indicating
+# the the kernel ABI the binaries linked with this library will require.
+$(objpfx)$(start-installed-name): $(objpfx)start.o $(objpfx)abi-note.o
+	$(link-relocatable)
+else
 # The startfile is installed under different names, so we just call our
 # source file `start.c' and copy to the installed name after compiling.
 $(objpfx)$(start-installed-name): $(objpfx)start.o
-	-rm -f $@
+	rm -f $@
 	ln $< $@
 endif
+endif
 
 # The profiling startfile is made by linking together the normal
 # startfile with gmon-start.o, which defines a constructor function
 # to turn on profiling code at startup.
-$(objpfx)g$(start-installed-name): $(objpfx)start.o $(objpfx)gmon-start.o
-	$(CC) -nostdlib -nostartfiles -r -o $@ $^
+$(objpfx)g$(start-installed-name): $(objpfx)$(start-installed-name) \
+				   $(objpfx)gmon-start.o
+	$(link-relocatable)
 
 # These extra files are sometimes expected by system standard linking
 # procedures, but we have nothing for them to do.  So compile empty files.
diff --git a/csu/abi-note.S b/csu/abi-note.S
new file mode 100644
index 0000000000..baa409de4d
--- /dev/null
+++ b/csu/abi-note.S
@@ -0,0 +1,69 @@
+/* Special .init and .fini section support.
+   Copyright (C) 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.
+
+   In addition to the permissions in the GNU Library General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file with other
+   programs, and to distribute those programs without any restriction
+   coming from the use of this file.  (The Library General Public
+   License restrictions do apply in other respects; for example, they
+   cover modification of the file, and distribution when not linked
+   into another program.)
+
+   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, 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+/* The basic layout of note sections is specified by the ELF format.  */
+
+#define ELF_NOTE_BEGIN(sectname, sectflags, type, name)			      \
+	.section sectname, sectflags;					      \
+	.align ALIGNARG(2);	/* Notes are 4-byte aligned.  */	      \
+	.long 1f - 0f;		/* 32-bit word: length of name field */	      \
+	.long 3f - 2f;		/* 32-bit word: length of desc field */	      \
+	.long (type);		/* 32-bit word: vendor-defined type field */  \
+0:	.asciz name;		/* null-terminated string, any length: name */\
+1:	.align ALIGNARG(2);	/* Name data padded to 4-byte alignment.  */  \
+2:	/* Here follows the "note descriptor" data, whose format	      \
+	   is not specified by ELF.  The vendor name and type field	      \
+	   indicate what sort of data is found here.  */
+
+#define ELF_NOTE_END							      \
+3:	.align ALIGNARG(2)	/* Pad to 4-byte align the next note.  */
+
+
+/* The linker (GNU ld 2.8 and later) recognize an allocated section whose
+   name begins with `.note' and creates a PT_NOTE program header entry
+   pointing at it.
+
+   Such a program header is the canonical way (at least in the free OS
+   community) to identify the OS environment ABI that the executable was
+   created for.  The ELF note information identifies a particular OS or
+   coordinated development effort within which the ELF header's e_machine
+   value plus (for dynamically linked programs) the PT_INTERP dynamic
+   linker name and DT_NEEDED shared library names fully identify the
+   runtime environment required by an executable.
+
+   The GNU project and cooperating development efforts (including the Linux
+   community) use a vendor name string of "GNU", and a note type field with
+   value 1 for a note descriptor that indicates ABI requirements.  */
+
+#include <abi-tag.h>		/* OS-specific ABI tag value */
+
+ELF_NOTE_BEGIN(".note.ABI-tag", "a", 1, "GNU")
+	.long ABI_TAG
+ELF_NOTE_END