Update. cvs/libc-ud-970924

1997-09-25 00:23  Ulrich Drepper  <drepper@cygnus.com>

	* elf/dl-profile.c: Correct implementation.

	* io/ftwtest-sh: Don't depend on TMPDIR == /tmp.

	* locale/setlocale.c: Rewrite a bit for more clarity.

	* math/Makefile (libm-calls): Add w_exp2.
	* math/math_private.h: Add prototypes for __ieee754_exp2{,f,l}.
	* sysdeps/libm-i387/s_exp2.S: Change name to __ieee754_exp2.
	* sysdeps/libm-i387/s_exp2f.S: Likewise.
	* sysdeps/libm-i387/s_exp2l.S: Likewise.
	* sysdeps/libm-ieee754/k_standard.c: Add error cases for exp2.

	* string/bits/string2.h (__strcpy_small): Optimize.
	(__stpcpy_small): Likewise.
	(strncpy): Use variable for dest argument since it's used more than
	once.
	(strncat): Likewise.
	(strcmp): Add optimization for this function.
	* sysdeps/i386/i486/string.h (strlen): Correctly use __builtin_strlen.
	(__strcpy_small): Optimize.
	(__stpcpy_small): Likewise.
	(__stpcpy_c): Correctly use __mempcpy_* macros.
	(__mempcpy_by2, __mempcpy_by4, __mempcpy_byn): Return pointer to
	byte following last copied.
	(strncat): Use variable for dest argument since it's used more than
	once.
	(strcmp): Add optimization for this function.

	* sysdeps/i386/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE): Use
	.text and .previous to select correct section.

1997-09-23 19:56  Philip Blundell  <Philip.Blundell@pobox.com>

	* configure.in: Add `--disable-versioning' option to suppress the
	use of symbol versions even if binutils claims to support it.

1997-09-24 20:10  Philip Blundell  <Philip.Blundell@pobox.com>

	* csu/Makefile (before-compile): Don't try to build abi-tags.h if
	not using ELF.

1997-09-21  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/sofini.c [HAVE_DWARF2_UNWIND_INFO]: Supply termination for
	the frame unwind info section.

	* elf/soinit.c [HAVE_DWARF2_UNWIND_INFO]: Register and unregister
	the frame unwind info.

	* config.h.in (HAVE_DWARF2_UNWIND_INFO): Add #undef.

	* configure.in: Check whether gcc supports DWARF2 unwind info.

	* libc.map: Export frame handling tables.

1997-09-10 06:56  Geoff Keating  <geoffk@ozemail.com.au>

	* sysdeps/unix/sysv/linux/powerpc/bits/kernel_termios.h:
	Use the size of the kernel's termios structure for ioctls.

	* sysdeps/powerpc/dl-machine.h: Prepare for library profiling.

	* sysdeps/powerpc/bits/mathinline.h: Add slightly slower versions
	of the C9X FP comparison macros. Delete 'fabs' and 'sqrt' inline
	routines, because gcc has them as internals.

	* sysdeps/powerpc/Makefile (pic-ccflags): Define this instead of
	CFLAGS-.os.

	* sysdeps/powerpc/bzero.S: New file.
	* sysdeps/powerpc/strcat.c: New file.
	* sysdeps/powerpc/strcpy.S: New file.
	* sysdeps/powerpc/stpcpy.S: New file.

	* math/Makefile: Add atest_exp2, test-reduce.
	* math/atest_exp2.c: New file.
	* math/test-reduce.c: New file.
	* sysdeps/libm-ieee754/Dist: New file.
	* sysdeps/libm-ieee754/s_exp2.c: New file.
	* sysdeps/libm-ieee754/s_exp2f.c: New file.
	* sysdeps/libm-ieee754/t_exp2.h: New file.
	* sysdeps/libm-ieee754/t_exp2f.h: New file.
	* math/libm-test.c (exp2_test): Add some more tests.

	* Rules: Use empty.os instead of empty.o, since it gets linked into
	libc.so...
	* configure.in: Add --disable-static to disable building .a files.
	* config.make.in: Substitute the new variable.
	* Makeconfig: Don't build .o files if not building .a files.

	* elf/dl-runtime.c (fixup): Factor out call to elf_machine_relplt.
	(profile_fixup): Likewise.

1997-09-23  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* posix/globtest.c (main): Change to directory passed as first
	argument.

	* posix/globtest.sh: Don't cd before running the program, instead
	pass testdir as argument, so that $common_objpfx remains valid.

1997-09-23 18:01  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/nis_call.c (__do_niscall2): Fix multiple Server support.

	* nis/nis_findserver.c: Save latest working sockaddr_in.

1997-09-17 22:07  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* configure.in: Automatically determine whether as and ld are the
	GNU versions.
	(options):  --with-gnu-{as,ld,binutils} replaced by
	single option --with-binutils=PATH specifying a -B option to gcc.
	* aclocal.m4: Two new macros defined, LIBC_PROG_FOO_GNU and
	LIBC_PROG_BINUTILS.

	* configure.in: Allow the user to force configuration for
	unsupported platforms with an undocumented option.

1997-09-22 16:55  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* sunrpc/get_myaddr.c (get_myaddress): Avoid loopback interfaces,
	return loopback address only if there is no other interface.

	* nis/Makefile: Add nis_callback libnsl-routines.

	* nis/nis_add.c: Use new __do_niscall* interface.
	* nis/nis_cache.c: Likewise.
	* nis/nis_checkpoint.c: Likewise.
	* nis/nis_lookup.c: Likewise.
	* nis/nis_mkdir.c: Likewise.
	* nis/nis_modify.c: Likewise.
	* nis/nis_ping.c: Likewise.
	* nis/nis_remove.c: Likewise.
	* nis/nis_rmdir.c: Likewise.
	* nis/nis_server.c: Likewise.
	* nis/nis_util.c: Likewise.

	* nis/rpcsvc/nis.h: Make C++ safe.

	* nis/nss_nisplus/nisplus-publickey.c (getsecretkey): Fix use
	of variables.

	* nis/nis_findserv.c: Make thread safe.

	* nis/nis_call.c: Add support for callback, Fix use of variables.
	* nis/nis_table.c: Add support for callback, FOLLOW_PATH and
	ALL_RESULTS.
	* nis/nis_callback.c: New, callback functions.
	* nis/nis_intern.h: Add callback declarations.

1997-09-20  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* string/bits/string2.h: Fix logic in preprocessor directive.
	(__strsep_1c, __strsep_g): Don't declare __retval as pointing to
	const, to save a cast and a possible warning.

1997-09-22 04:12  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/i386/i486/atomicity.h (exchange_and_add): Really address
	memory in xadd not %1.

1997-09-21 13:56  Ulrich Drepper  <drepper@cygnus.com>

	* manual/maint.texi (Supported Configurations): Add SPARC64 to
	list of supported platforms.

3 files changed, 100 insertions, 51 deletions

diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h
index f9913cf00c..041643ef5a 100644
--- a/sysdeps/i386/dl-machine.h
+++ b/sysdeps/i386/dl-machine.h
@@ -121,6 +121,7 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
    and then redirect to the address it returns.  */
 #ifndef PROF
 # define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
+	.text
 	.globl _dl_runtime_resolve
 	.type _dl_runtime_resolve, @function
 	.align 16
@@ -153,9 +154,11 @@ _dl_runtime_profile:
 	xchgl %eax, (%esp)	# Get %eax contents end store function address.
 	ret $8			# Jump to function address.
 	.size _dl_runtime_profile, .-_dl_runtime_profile
+	.previous
 ");
 #else
 # define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
+	.text
 	.globl _dl_runtime_resolve
 	.globl _dl_runtime_profile
 	.type _dl_runtime_resolve, @function
@@ -179,6 +182,7 @@ _dl_runtime_profile:
 	ret $8			# Jump to function address.
 	.size _dl_runtime_resolve, .-_dl_runtime_resolve
 	.size _dl_runtime_profile, .-_dl_runtime_profile
+	.previous
 ");
 #endif
 /* The PLT uses Elf32_Rel relocs.  */
diff --git a/sysdeps/i386/i486/atomicity.h b/sysdeps/i386/i486/atomicity.h
index 7157bc33d8..da4137abe1 100644
--- a/sysdeps/i386/i486/atomicity.h
+++ b/sysdeps/i386/i486/atomicity.h
@@ -28,7 +28,7 @@ __attribute__ ((unused))
 exchange_and_add (volatile uint32_t *mem, int val)
 {
   register int result;
-  __asm__ __volatile__ ("lock; xaddl %0,%1"
+  __asm__ __volatile__ ("lock; xaddl %0,%2"
 			: "=r" (result) : "0" (val), "m" (*mem) : "memory");
   return result;
 }
diff --git a/sysdeps/i386/i486/bits/string.h b/sysdeps/i386/i486/bits/string.h
index 10915ced1d..28ca38315e 100644
--- a/sysdeps/i386/i486/bits/string.h
+++ b/sysdeps/i386/i486/bits/string.h
@@ -344,7 +344,7 @@ memchr (__const void *__s, int __c, size_t __n)
 #define _HAVE_STRING_ARCH_strlen 1
 #define strlen(str) \
   (__extension__ (__builtin_constant_p (str)				      \
-		  ? sizeof (str) - 1					      \
+		  ? __builtin_strlen (str)				      \
 		  : __strlen_g (str)))
 __STRING_INLINE size_t
 __strlen_g (__const char *__str)
@@ -374,52 +374,51 @@ __strlen_g (__const char *__str)
 		  : __strcpy_g (dest, src)))
 
 # define __strcpy_small(dest, src, srclen) \
-  (__extension__ ({ char *__retval = (dest);				      \
-		    char *__cp = __retval;				      \
+  (__extension__ ({ unsigned char *__dest = (unsigned char *) (dest);	      \
 		    switch (srclen)					      \
 		      {							      \
 		      case 1:						      \
-			*((unsigned char *) __cp) = '\0';		      \
+			*__dest = '\0';					      \
 			break;						      \
 		      case 2:						      \
-			*((__uint16_t *) __cp) =			      \
+			*((__uint16_t *) __dest) =			      \
 			  __STRING_SMALL_GET16 (src, 0);		      \
 			break;						      \
 		      case 3:						      \
-			*((__uint16_t *) __cp)++ =			      \
+			*((__uint16_t *) __dest) =			      \
 			  __STRING_SMALL_GET16 (src, 0);		      \
-			*((unsigned char *) __cp) = '\0';		      \
+			*(__dest + 2) = '\0';				      \
 			break;						      \
 		      case 4:						      \
-			*((__uint32_t *) __cp) =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING_SMALL_GET32 (src, 0);		      \
 			break;						      \
 		      case 5:						      \
-			*((__uint32_t *) __cp)++ =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING_SMALL_GET32 (src, 0);		      \
-			*((unsigned char *) __cp) = '\0';		      \
+			*(__dest + 4) = '\0';				      \
 			break;						      \
 		      case 6:						      \
-			*((__uint32_t *) __cp)++ =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING_SMALL_GET32 (src, 0);		      \
-			*((__uint16_t *) __cp) =			      \
+			*((__uint16_t *) (__dest + 4)) =		      \
 			  __STRING_SMALL_GET16 (src, 4);		      \
 			break;						      \
 		      case 7:						      \
-			*((__uint32_t *) __cp)++ =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING_SMALL_GET32 (src, 0);		      \
-			*((__uint16_t *) __cp)++ =			      \
+			*((__uint16_t *) (__dest + 4)) =		      \
 			  __STRING_SMALL_GET16 (src, 4);		      \
-			*((unsigned char *) __cp) = '\0';		      \
+			*(__dest + 6) = '\0';				      \
 			break;						      \
 		      case 8:						      \
-			*((__uint32_t *) __cp)++ =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING_SMALL_GET32 (src, 0);		      \
-			*((__uint32_t *) __cp) =			      \
+			*((__uint32_t *) (__dest + 4)) =		      \
 			  __STRING_SMALL_GET32 (src, 4);		      \
 			break;						      \
 		      }							      \
-		    __retval; }))
+		    (char *) __dest; }))
 
 __STRING_INLINE char *
 __strcpy_g (char *__dest, __const char *__src)
@@ -453,64 +452,65 @@ __strcpy_g (char *__dest, __const char *__src)
 		  : __stpcpy_g (dest, src)))
 # define __stpcpy_c(dest, src, srclen) \
   ((srclen) % 4 == 0							      \
-   ? __mempcpy_by4 (dest, src, srclen)					      \
+   ? __mempcpy_by4 (dest, src, srclen) - 1				      \
    : ((srclen) % 2 == 0							      \
-      ? __mempcpy_by2 (dest, src, srclen)				      \
-      : __mempcpy_byn (dest, src, srclen)))
+      ? __mempcpy_by2 (dest, src, srclen) - 1				      \
+      : __mempcpy_byn (dest, src, srclen) - 1))
 
 /* In glibc itself we use this symbol for namespace reasons.  */
 # define stpcpy(dest, src) __stpcpy (dest, src)
 
 # define __stpcpy_small(dest, src, srclen) \
-  (__extension__ ({ char *__cp = (dest);				      \
+  (__extension__ ({ unsigned char *__dest = (unsigned char *) (dest);	      \
 		    switch (srclen)					      \
 		      {							      \
 		      case 1:						      \
-			*((unsigned char *) __cp) = '\0';		      \
+			*__dest = '\0';					      \
 			break;						      \
 		      case 2:						      \
-			*((__uint16_t *) __cp) =			      \
+			*((__uint16_t *) __dest) =			      \
 			  __STRING_SMALL_GET16 (src, 0);		      \
-			++__cp;						      \
+			++__dest;					      \
 			break;						      \
 		      case 3:						      \
-			*((__uint16_t *) __cp)++ =			      \
+			*((__uint16_t *) __dest)++ =			      \
 			  __STRING_SMALL_GET16 (src, 0);		      \
-			*((unsigned char *) __cp) = '\0';		      \
+			*__dest = '\0';					      \
 			break;						      \
 		      case 4:						      \
-			*((__uint32_t *) __cp) =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING_SMALL_GET32 (src, 0);		      \
-			__cp += 3;					      \
+			__dest += 3;					      \
 			break;						      \
 		      case 5:						      \
-			*((__uint32_t *) __cp)++ =			      \
+			*((__uint32_t *) __dest)++ =			      \
 			  __STRING_SMALL_GET32 (src, 0);		      \
-			*((unsigned char *) __cp) = '\0';		      \
+			*__dest = '\0';					      \
 			break;						      \
 		      case 6:						      \
-			*((__uint32_t *) __cp)++ =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING_SMALL_GET32 (src, 0);		      \
-			*((__uint16_t *) __cp) =			      \
+			*((__uint16_t *) (__dest + 4)) =		      \
 			  __STRING_SMALL_GET16 (src, 4);		      \
-			++__cp;						      \
+			__dest += 5;					      \
 			break;						      \
 		      case 7:						      \
-			*((__uint32_t *) __cp)++ =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING_SMALL_GET32 (src, 0);		      \
-			*((__uint16_t *) __cp)++ =			      \
+			*((__uint16_t *) (__dest + 4)) =		      \
 			  __STRING_SMALL_GET16 (src, 4);		      \
-			*((unsigned char *) __cp) = '\0';		      \
+			__dest += 6;					      \
+			*__dest = '\0';					      \
 			break;						      \
 		      case 8:						      \
-			*((__uint32_t *) __cp)++ =			      \
+			*((__uint32_t *) __dest) =			      \
 			  __STRING_SMALL_GET32 (src, 0);		      \
-			*((__uint32_t *) __cp) =			      \
+			*((__uint32_t *) (__dest + 4)) =		      \
 			  __STRING_SMALL_GET32 (src, 4);		      \
-			__cp += 3;					      \
+			__dest += 7;					      \
 			break;						      \
 		      }							      \
-		    __cp; }))
+		    (char *) __dest; }))
 
 __STRING_INLINE char *
 __mempcpy_by4 (char *__dest, __const char *__src, size_t __srclen)
@@ -528,7 +528,7 @@ __mempcpy_by4 (char *__dest, __const char *__src, size_t __srclen)
      : "=r" (__dummy1), "=r" (__tmp), "=r" (__src), "=r" (__dummy2)
      : "1" (__tmp), "2" (__src), "3" (__srclen / 4)
      : "memory", "cc");
-  return __tmp - 1;
+  return __tmp;
 }
 
 __STRING_INLINE char *
@@ -552,7 +552,7 @@ __mempcpy_by2 (char *__dest, __const char *__src, size_t __srclen)
      : "=q" (__dummy1), "=r" (__tmp), "=r" (__src), "=r" (__dummy2)
      : "1" (__tmp), "2" (__src), "3" (__srclen / 2)
      : "memory", "cc");
-  return __tmp + 1;
+  return __tmp + 2;
 }
 
 __STRING_INLINE char *
@@ -573,7 +573,7 @@ __mempcpy_byn (char *__dest, __const char *__src, size_t __srclen)
      : "=D" (__tmp)
      : "c" (__srclen), "0" (__tmp),"S" (__src)
      : "cx", "di", "si", "memory", "cc");
-  return __tmp - 1;
+  return __tmp;
 }
 
 __STRING_INLINE char *
@@ -760,11 +760,12 @@ __strcat_g (char *__dest, __const char *__src)
 /* Append no more than N characters from SRC onto DEST.  */
 #define _HAVE_STRING_ARCH_strncat 1
 #define strncat(dest, src, n) \
-  (__extension__ (__builtin_constant_p (src) && __builtin_constant_p (n)      \
-		  ? (strlen (src) < ((size_t) (n))			      \
-		     ? strcat (dest, src)				      \
-		     : (memcpy (strchr (dest, '\0'), src, n), dest))	      \
-		  : __strncat_g (dest, src, n)))
+  (__extension__ ({ char *__dest = (dest);				      \
+		    __builtin_constant_p (src) && __builtin_constant_p (n)    \
+		    ? (strlen (src) < ((size_t) (n))			      \
+		       ? strcat (__dest, src)				      \
+		       : (memcpy (strchr (__dest, '\0'), src, n), __dest))    \
+		    : __strncat_g (__dest, src, n); }))
 
 __STRING_INLINE char *
 __strncat_g (char *__dest, __const char __src[], size_t __n)
@@ -797,8 +798,52 @@ __strncat_g (char *__dest, __const char __src[], size_t __n)
 
 /* Compare S1 and S2.  */
 #define _HAVE_STRING_ARCH_strcmp 1
+#define strcmp(s1, s2) \
+  (__extension__ (__builtin_constant_p (s1) && __builtin_constant_p (s2)      \
+		  && (sizeof (s1)[0] != 1 || strlen (s1) >= 4)		      \
+		  && (sizeof (s2)[0] != 1 || strlen (s2) >= 4)		      \
+		  ? memcmp (s1, s2, (strlen (s1) < strlen (s2)		      \
+				     ? strlen (s1) : strlen (s2)) + 1)	      \
+		  : (__builtin_constant_p (s1) && sizeof (s1)[0] == 1	      \
+		     && sizeof (s2)[0] == 1 && strlen (s1) < 4		      \
+		     ? __strcmp_cg (s1, s2, strlen (s1))		      \
+		     : (__builtin_constant_p (s2) && sizeof (s1)[0] == 1      \
+			&& sizeof (s2)[0] == 1 && strlen (s2) < 4	      \
+			? __strcmp_gc (s1, s2, strlen (s2))		      \
+			: __strcmp_gg (s1, s2)))))
+
+#define __strcmp_cg(s1, s2, l1) \
+  (__extension__ ({ __const unsigned char *__s2 = (unsigned char *) (s2);     \
+		    register int __result = (unsigned char) (s1)[0] - __s2[0];\
+		    if (l1 > 0 && __result == 0)			      \
+		      {							      \
+			__result = (unsigned char) (s1)[1] - __s2[1];	      \
+			if (l1 > 1 && __result == 0)			      \
+			  {						      \
+			    __result = (unsigned char) (s1)[2] - __s2[2];     \
+			    if (l1 > 2 && __result == 0)		      \
+			      __result = (unsigned char) (s1)[3] - __s2[3];   \
+			  }						      \
+		      }							      \
+		    __result; }))
+
+#define __strcmp_gc(s1, s2, l2) \
+  (__extension__ ({ __const unsigned char *__s1 = (unsigned char *) (s1);     \
+		    register int __result = __s1[0] - (unsigned char) (s2)[0];\
+		    if (l2 > 0 && __result == 0)			      \
+		      {							      \
+			__result = __s1[1] - (unsigned char) (s2)[1];	      \
+			if (l2 > 1 && __result == 0)			      \
+			  {						      \
+			    __result = __s1[2] - (unsigned char) (s2)[2];     \
+			    if (l2 > 2 && __result == 0)		      \
+			      __result = __s1[3] - (unsigned char) (s2)[3];   \
+			  }						      \
+		      }							      \
+		    __result; }))
+
 __STRING_INLINE int
-strcmp (__const char *__s1, __const char *__s2)
+__strcmp_gg (__const char *__s1, __const char *__s2)
 {
   register int __res;
   __asm__ __volatile__