Updated to fedora-glibc-20080411T1934

ChangeLog

@@ -1,3 +1,64 @@
+2007-11-20  Ryan S. Arnold  <rsa@us.ibm.com>
+
+	[BZ #4997]
+	* sysdeps/powerpc/powerpc32/fpu/s_lround.S (__lround): Fixed erroneous
+	result when x is +/-nextafter(+/-0.5,-/+1) i.e. all 1's in the
+	mantissa.
+	* sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S (__llround):
+	Likewise.  Also account for when x is an odd number between 2^52
+	and 2^53-1.
+	* sysdeps/powerpc/powerpc64/fpu/s_llround.S (__llround): Likewise.
+	* sysdeps/powerpc/powerpc64/fpu/s_llroundf.S (__llroundf): Likewise.
+	* math/libm-test.inc (lround_test, llround_test): Added test cases to
+	detect aforementioned erroneous conditions.
+
+2008-04-11  Jakub Jelinek  <jakub@redhat.com>
+
+	* configure.in: Check for -fno-section-anchors in addition to
+	-fno-toplevel-reorder.
+
+2008-04-11  Ulrich Drepper  <drepper@redhat.com>
+
+	* include/features.h (__GLIBC_MINOR__): Bump to 8.
+
+	* sysdeps/powerpc/powerpc32/fpu/s_lroundf.S: Remove duplicate comment.
+	* sysdeps/powerpc/powerpc32/power5+/fpu/s_llroundf.S: Likewise.
+	* sysdeps/powerpc/powerpc32/power6/fpu/s_llroundf.S: Likewise.
+	* sysdeps/powerpc/powerpc64/fpu/s_lrint.S: Likewise.
+	* sysdeps/powerpc/powerpc64/fpu/s_lround.S: Likewise.
+	* sysdeps/powerpc/powerpc64/fpu/s_lroundf.S: Likewise.
+
+2008-04-11  Jakub Jelinek  <jakub@redhat.com>
+
+	[BZ #5443]
+	* time/era.c: Transform __libc_setlocale_lock into rwlock.
+	* time/alt_digit.c: Likewise.
+	* wcsmbs/wcsmbsload.c: Likewise.
+
+2008-04-10  Ulrich Drepper  <drepper@redhat.com>
+
+	* version.h (VERSION): Bump to 2.8.
+
+	* timzeone/asia: Update from tzdata2008b.
+	* timezone/backward: Likewise.
+	* timezone/europe: Likewise.
+	* timezone/northamerica: Likewise.
+	* timezone/southamerica: Likewise.
+	* timezone/iso3166.tab: Likewise.
+	* timezone/leapseconds: Likewise.
+	* timezone/zone.tab: Likewise.
+	* timezone/private.h: Update from tzcode2008a.
+	* timezone/zdump.c: Likewise.
+	* timezone/zic.c: Likewise.
+
+2008-01-24  Steven Munroe  <sjmunroe@us.ibm.com>
+
+	[BZ #5741]
+	* sysdeps/powerpc/powerpc64/dl-machine.h (PPC_DCBT, PPC_DCBF):
+	Define additonal Data Cache Block instruction macros.
+	(elf_machine_fixup_plt): Add dcbt for opd and plt entries.
+	Replace dcbst with dcbf and sync with sync/isync.
+
 2008-02-21  Alan Modra  <amodra@bigpond.net.au>
 
 	* sysdeps/powerpc/powerpc64/dl-machine.h (elf_machine_type_class):

configure

@@ -5067,7 +5067,7 @@ echo "$as_me: WARNING:
 if test -n "$sysheaders"; then
   SYSINCLUDES=-nostdinc
   for d in include include-fixed; do
-    i=`$CC -print-file-name="$d"` && test "x$i" != "x$d" &&
+    i=`$CC -print-file-name="$d"` && test "x$i" != x && test "x$i" != "x$d" &&
     SYSINCLUDES="$SYSINCLUDES -isystem $i"
   done
   SYSINCLUDES="$SYSINCLUDES \
@@ -6411,15 +6411,15 @@ echo "${ECHO_T}$libc_cv_hashstyle" >&6; }
 
 fi
 
-{ echo "$as_me:$LINENO: checking for -fno-toplevel-reorder" >&5
-echo $ECHO_N "checking for -fno-toplevel-reorder... $ECHO_C" >&6; }
+{ echo "$as_me:$LINENO: checking for -fno-toplevel-reorder -fno-section-anchors" >&5
+echo $ECHO_N "checking for -fno-toplevel-reorder -fno-section-anchors... $ECHO_C" >&6; }
 if test "${libc_cv_fno_toplevel_reorder+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat > conftest.c <<EOF
 int foo;
 EOF
-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -S -fno-toplevel-reorder
+if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -S -fno-toplevel-reorder -fno-section-anchors
 			    conftest.c 1>&5'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
@@ -6436,7 +6436,7 @@ fi
 { echo "$as_me:$LINENO: result: $libc_cv_fno_toplevel_reorder" >&5
 echo "${ECHO_T}$libc_cv_fno_toplevel_reorder" >&6; }
 if test $libc_cv_fno_toplevel_reorder = yes; then
-  fno_unit_at_a_time=-fno-toplevel-reorder
+  fno_unit_at_a_time="-fno-toplevel-reorder -fno-section-anchors"
 else
   fno_unit_at_a_time=-fno-unit-at-a-time
 fi

configure.in

@@ -1614,11 +1614,11 @@ EOF
   AC_SUBST(libc_cv_hashstyle)
 fi
 
-AC_CACHE_CHECK(for -fno-toplevel-reorder, libc_cv_fno_toplevel_reorder, [dnl
+AC_CACHE_CHECK(for -fno-toplevel-reorder -fno-section-anchors, libc_cv_fno_toplevel_reorder, [dnl
 cat > conftest.c <<EOF
 int foo;
 EOF
-if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -S -fno-toplevel-reorder
+if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -S -fno-toplevel-reorder -fno-section-anchors
 			    conftest.c 1>&AS_MESSAGE_LOG_FD])
 then
   libc_cv_fno_toplevel_reorder=yes
@@ -1627,7 +1627,7 @@ else
 fi
 rm -f conftest*])
 if test $libc_cv_fno_toplevel_reorder = yes; then
-  fno_unit_at_a_time=-fno-toplevel-reorder
+  fno_unit_at_a_time="-fno-toplevel-reorder -fno-section-anchors"
 else
   fno_unit_at_a_time=-fno-unit-at-a-time
 fi

fedora/branch.mk

@@ -3,5 +3,5 @@ glibc-branch := fedora
 glibc-base := HEAD
 DIST_BRANCH := devel
 COLLECTION := dist-f8
-fedora-sync-date := 2008-04-10 19:07 UTC
-fedora-sync-tag := fedora-glibc-20080410T1907
+fedora-sync-date := 2008-04-11 19:34 UTC
+fedora-sync-tag := fedora-glibc-20080411T1934

fedora/glibc.spec.in

@@ -19,7 +19,7 @@
 Summary: The GNU libc libraries
 Name: glibc
 Version: @glibcversion@
-Release: 15
+Release: 16
 # GPLv2+ is used in a bunch of programs, LGPLv2+ is used for libraries.
 # Things that are linked directly into dynamically linked programs
 # and shared libraries (e.g. crt files, lib*_nonshared.a) have an additional
@@ -976,18 +976,26 @@ rm -f *.filelist*
 %endif
 
 %changelog
+* Fri Apr 11 2008 Jakub Jelinek <jakub@redhat.com> 2.7.90-16
+- update to trunk
+  - misc fixes (BZ#4997, BZ#5741)
+  - make sure all users of __libc_setlocale_lock know it is
+    now a rwlock
+  - fix ppc/ppc64 compatibility _sys_errlist and _sys_siglist
+    symbols
+
 * Thu Apr 10 2008 Jakub Jelinek <jakub@redhat.com> 2.7.90-15
 - update to trunk
   - misc fixes (BZ#4314, BZ#4407, BZ#5209, BZ#5436, BZ#5768, BZ#5998,
-    BZ#6024)
+		BZ#6024)
 - restart sshd in %post when upstart is used - it doesn't have
   /dev/initctl (#441763)
 - disable assert checking again
 
 * Tue Apr  8 2008 Jakub Jelinek <jakub@redhat.com> 2.7.90-14
 - update to trunk
   - misc fixes (BZ#5443, BZ#5475, BZ#5478, BZ#5939, BZ#5979, BZ#5995,
-    BZ#6004, BZ#6007, BZ#6020, BZ#6021, BZ#6042)
+		BZ#6004, BZ#6007, BZ#6020, BZ#6021, BZ#6042)
   - change mtrace to keep perl 5.10 quiet (#441082)
   - don't share conversion state between mbtowc and wctomb (#438687)
   - if st_blksize is too large and malloc fails, retry with smaller

math/libm-test.inc

@@ -4300,6 +4300,17 @@ lround_test (void)
 # endif
   TEST_f_l (lround, 2097152.5, 2097153);
   TEST_f_l (lround, -2097152.5, -2097153);
+  /* nextafter(0.5,-1)  */
+  TEST_f_l (lround, 0x1.fffffffffffffp-2, 0);
+  /* nextafter(-0.5,1)  */
+  TEST_f_l (lround, -0x1.fffffffffffffp-2, 0);
+#else
+  /* nextafter(0.5,-1)  */
+  TEST_f_l (lround, 0x1.fffffp-2, 0);
+  /* nextafter(-0.5,1)  */
+  TEST_f_l (lround, -0x1.fffffp-2, 0);
+  TEST_f_l (lround, 0x1.fffffep+23, 16777215);
+  TEST_f_l (lround, -0x1.fffffep+23, -16777215);
 #endif
   END (lround);
 }
@@ -4359,8 +4370,40 @@ llround_test (void)
   TEST_f_L (llround, 4294967295.5, 4294967296LL);
   /* 0x200000000 */
   TEST_f_L (llround, 8589934591.5, 8589934592LL);
+
+  /* nextafter(0.5,-1)  */
+  TEST_f_L (llround, 0x1.fffffffffffffp-2, 0);
+  /* nextafter(-0.5,1)  */
+  TEST_f_L (llround, -0x1.fffffffffffffp-2, 0);
+  /* On PowerPC an exponent of '52' is the largest incrementally
+   * representable sequence of whole-numbers in the 'double' range.  We test
+   * lround to make sure that a guard bit set during the lround operation
+   * hasn't forced an erroneous shift giving us an incorrect result.  The odd
+   * numbers between +-(2^52+1 and 2^53-1) are affected since they have the
+   * rightmost bit set.  */
+  /* +-(2^52+1)  */
+  TEST_f_L (llround, 0x1.0000000000001p+52,4503599627370497LL);
+  TEST_f_L (llround, -0x1.0000000000001p+52,-4503599627370497LL);
+  /* +-(2^53-1): Input is the last (positive and negative) incrementally
+   * representable whole-number in the 'double' range that might round
+   * erroneously.  */
+  TEST_f_L (llround, 0x1.fffffffffffffp+52, 9007199254740991LL);
+  TEST_f_L (llround, -0x1.fffffffffffffp+52, -9007199254740991LL);
+#else
+  /* nextafter(0.5,-1)  */
+  TEST_f_L (llround, 0x1.fffffep-2, 0);
+  /* nextafter(-0.5,1)  */
+  TEST_f_L (llround, -0x1.fffffep-2, 0);
+  /* As above, on PowerPC an exponent of '23' is the largest incrementally
+   * representable sequence of whole-numbers in the 'float' range.
+   * Likewise, numbers between +-(2^23+1 and 2^24-1) are affected.  */
+  TEST_f_L (llround, 0x1.000002p+23,8388609);
+  TEST_f_L (llround, -0x1.000002p+23,-8388609);
+  TEST_f_L (llround, 0x1.fffffep+23, 16777215);
+  TEST_f_L (llround, -0x1.fffffep+23, -16777215);
 #endif
 
+
 #ifdef TEST_LDOUBLE
   /* The input can only be represented in long double.  */
   TEST_f_L (llround, 4503599627370495.5L, 4503599627370496LL);

sysdeps/powerpc/powerpc32/fpu/s_lround.S

@@ -1,5 +1,5 @@
 /* lround function.  PowerPC32 version.
-   Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2004, 2006, 2007 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
@@ -20,13 +20,10 @@
 #include <sysdep.h>
 #include <math_ldbl_opt.h>
 
-	.section	.rodata.cst8,"aM",@progbits,8
+	.section	.rodata.cst4,"aM",@progbits,4
 	.align	2
-.LC0:	/* 0.0 */
-	.long 0x00000000
-.LC1:	/* 0.5 */
+.LC0:	/* 0.5 */
 	.long 0x3f000000
-
 	.section	".text"
 
 /* long [r3] lround (float x [fp1])
@@ -37,7 +34,10 @@
    tie, choose the one that is even (least significant bit o).". 
    So we can't use the PowerPC "round to Nearest" mode. Instead we set
    "round toward Zero" mode and round by adding +-0.5 before rounding
-   to the integer value.  */
+   to the integer value.  It is necessary to detect when x is
+   (+-)0x1.fffffffffffffp-2 because adding +-0.5 in this case will
+   cause an erroneous shift, carry and round.  We simply return 0 if
+   0.5 > x > -0.5.  */
 
 ENTRY (__lround)
 	stwu    r1,-16(r1)
@@ -49,40 +49,40 @@ ENTRY (__lround)
 	bcl	20,31,1f
 1:	mflr	r9
 	addis	r9,r9,.LC0-1b@ha
-	addi	r9,r9,.LC0-1b@l
+	lfs	fp10,.LC0-1b@l(r9)
 # else
 	bl	_GLOBAL_OFFSET_TABLE_@local-4
 	mflr	r10
 	lwz	r9,.LC0@got(10)
+	lfs	fp10,0(r9)
 # endif
 	mtlr	r11
 	cfi_same_value (lr)
-	lfs	fp12,0(r9)
 #else
 	lis	r9,.LC0@ha
-	lfs	fp12,.LC0@l(r9)
-#endif
-#ifdef SHARED
-	lfs	fp10,.LC1-.LC0(r9)
-#else
-	lis	r9,.LC1@ha
-	lfs	fp10,.LC1@l(r9)
+	lfs	fp10,.LC0@l(r9)
 #endif
-	fcmpu	cr6,fp1,fp12	/* if (x > 0.0)  */
-	ble-	cr6,.L4
-	fadd	fp1,fp1,fp10	/* x+= 0.5;  */
-.L9:
-	fctiwz	fp2,fp1		/* Convert To Integer DW lround toward 0.  */
-	stfd	fp2,8(r1)
+	fabs	fp2, fp1	/* Get the absolute value of x.  */
+	fsub	fp12,fp10,fp10	/* Compute 0.0.  */
+	fcmpu	cr6, fp2, fp10	/* if |x| < 0.5  */
+	fcmpu	cr3, fp1, fp12	/* x is negative? x < 0.0  */
+	blt-	cr6,.Lretzero
+	fadd	fp3,fp2,fp10	/* |x|+=0.5 bias to prepare to round.  */
+	bge	cr3,.Lconvert	/* x is positive so don't negate x.  */
+	fnabs	fp3,fp3		/* -(|x|+=0.5)  */ 
+.Lconvert:
+	fctiwz	fp4,fp3		/* Convert to Integer word lround toward 0.  */
+	stfd	fp4,8(r1)
 	nop	/* Ensure the following load is in a different dispatch  */
 	nop	/* group to avoid pipe stall on POWER4&5.  */
 	nop
-	lwz	r3,12(r1)
+	lwz	r3,12(r1)	/* Load return as integer.  */
+.Lout:
 	addi	r1,r1,16
 	blr
-.L4:
-	fsub	fp1,fp1,fp10	/* x-= 0.5;  */
-	b	.L9
+.Lretzero:			/* when 0.5 > x > -0.5  */
+	li	r3,0		/* return 0.  */
+	b	.Lout
 	END (__lround)
 
 weak_alias (__lround, lround)

sysdeps/powerpc/powerpc32/fpu/s_lroundf.S

@@ -1,2 +1 @@
 /* __lroundf is in s_lround.S */
-/* __lroundf is in s_lround.S */