Update.

1998-09-22 19:58 -0400  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* posix/execvp.c: Don't give up searching the PATH if execve
	returns ENOTDIR.

1998-09-22 12:53  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/init-first.c (init): Don't call setfpucw only
	if _dl_fpu_control_set is set.
	* sysdeps/generic/dl-sysdep.c: Don't set _dl_fpu_control_set.
	* elf/rtld.c: Don't define _dl_fpu_control_set.
	* elf/Versions: Remove _dl_fpu_control_set.

1998-09-22 11:51  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/alpha/bits/sigaction.h (SA_ONSTACK): Define.
	* sysdeps/unix/sysv/linux/sparc/bits/sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/sigaction.h: Likewise.
	Correct values of other SA_* macros according to kernel headers.

1998-09-22  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/dl-load.c (_dl_init_paths): Avoid warning about unused
	variable l.
	* elf/dl-error.c (_dl_catch_error): Avoid warning about clobbering
	old.

1998-09-21  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/ldsodefs.h: Fix typo in comment.

1998-09-21  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* libio/genops.c (_IO_default_pbackfail): Add cast to unsigned
	char when comparing buffer contents with putback character.

1998-09-21  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/Makefile (dl-routines, elide-routines.os, rtld-routines):
	Undo last change.
	* elf/Versions: Undo last change.  Export _dl_fpu_control and
	_dl_fpu_control_set.
	* elf/rtld.c (_dl_fpu_control, _dl_fpu_control_set): New
	variables.  Include <fpu_control.h>.
	* sysdeps/generic/dl-sysdep.c: Store AT_FPUCW value in
	_dl_fpu_control instead of __fpu_control, set _dl_fpu_control_set
	to indicate that is was seen.
	* sysdeps/unix/sysv/linux/init-first.c: Omit call to __setfpucw
	only if _dl_fpu_control was set and is equal to desired value.
	* math/Makefile (aux): Undo last change.
	* math/Versions: Export __fpu_control with version GLIBC_2.0.

ChangeLog

@@ -1,3 +1,55 @@
+1998-09-22 19:58 -0400  Zack Weinberg  <zack@rabi.phys.columbia.edu>
+
+	* posix/execvp.c: Don't give up searching the PATH if execve
+	returns ENOTDIR.
+
+1998-09-22 12:53  Ulrich Drepper  <drepper@cygnus.com>
+
+	* sysdeps/unix/sysv/linux/init-first.c (init): Don't call setfpucw only
+	if _dl_fpu_control_set is set.
+	* sysdeps/generic/dl-sysdep.c: Don't set _dl_fpu_control_set.
+	* elf/rtld.c: Don't define _dl_fpu_control_set.
+	* elf/Versions: Remove _dl_fpu_control_set.
+
+1998-09-22 11:51  Ulrich Drepper  <drepper@cygnus.com>
+
+	* sysdeps/unix/sysv/linux/alpha/bits/sigaction.h (SA_ONSTACK): Define.
+	* sysdeps/unix/sysv/linux/sparc/bits/sigaction.h: Likewise.
+	* sysdeps/unix/sysv/linux/mips/bits/sigaction.h: Likewise.
+	Correct values of other SA_* macros according to kernel headers.
+
+1998-09-22  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
+
+	* elf/dl-load.c (_dl_init_paths): Avoid warning about unused
+	variable l.
+	* elf/dl-error.c (_dl_catch_error): Avoid warning about clobbering
+	old.
+
+1998-09-21  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
+
+	* elf/ldsodefs.h: Fix typo in comment.
+
+1998-09-21  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
+
+	* libio/genops.c (_IO_default_pbackfail): Add cast to unsigned
+	char when comparing buffer contents with putback character.
+
+1998-09-21  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
+
+	* elf/Makefile (dl-routines, elide-routines.os, rtld-routines):
+	Undo last change.
+	* elf/Versions: Undo last change.  Export _dl_fpu_control and
+	_dl_fpu_control_set.
+	* elf/rtld.c (_dl_fpu_control, _dl_fpu_control_set): New
+	variables.  Include <fpu_control.h>.
+	* sysdeps/generic/dl-sysdep.c: Store AT_FPUCW value in
+	_dl_fpu_control instead of __fpu_control, set _dl_fpu_control_set
+	to indicate that is was seen.
+	* sysdeps/unix/sysv/linux/init-first.c: Omit call to __setfpucw
+	only if _dl_fpu_control was set and is equal to desired value.
+	* math/Makefile (aux): Undo last change.
+	* math/Versions: Export __fpu_control with version GLIBC_2.0.
+
 1998-09-21  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
 
 	* sysdeps/m68k/dl-machine.h (elf_machine_lazy_rel): Slightly

elf/Versions

@@ -19,7 +19,7 @@ libc {
   GLIBC_2.1 {
     # global variables
     _dl_profile; _dl_profile_map; _dl_profile_output; _dl_start_profile;
-    _dl_loaded; _dl_main_searchlist; __fpu_control;
+    _dl_loaded; _dl_main_searchlist; _dl_fpu_control;
 
     # functions used in other libraries
     _dl_mcount; _dl_mcount_wrapper; _dl_mcount_wrapper_check; _dl_unload_cache;

elf/dl-error.c

@@ -145,7 +145,8 @@ _dl_catch_error (char **errstring,
 		 void *args)
 {
   int errcode;
-  struct catch *old, c;
+  struct catch *volatile old;
+  struct catch c;
   /* We need not handle `receiver' since setting a `catch' is handled
      before it.  */
 

elf/dl-load.c

@@ -456,10 +456,12 @@ _dl_init_paths (const char *llp)
   const char **strp;
   struct r_search_path_elem *pelem, **aelem;
   size_t round_size;
+#ifdef PIC
+  struct link_map *l;
+#endif
 
   /* Fill in the information about the application's RPATH and the
      directories addressed by the LD_LIBRARY_PATH environment variable.  */
-  struct link_map *l;
 
   /* Get the capabilities.  */
   capstr = _dl_important_hwcaps (_dl_platform, _dl_platformlen,

elf/ldsodefs.h

@@ -148,7 +148,7 @@ extern unsigned long int _dl_hwcap;
 /* Mask for important hardware capabilities we honour. */
 extern unsigned long int _dl_hwcap_mask;
 
-/* File deccriptor to write debug messages to.  */
+/* File descriptor to write debug messages to.  */
 extern int _dl_debug_fd;
 
 /* Names of shared object for which the RPATH should be ignored.  */

elf/rtld.c

@@ -25,6 +25,7 @@
 #include <elf/ldsodefs.h>
 #include <stdio-common/_itoa.h>
 #include <entry.h>
+#include <fpu_control.h>
 #include "dynamic-link.h"
 #include "dl-librecon.h"
 
@@ -73,6 +74,7 @@ int _dl_verbose;
 const char *_dl_platform;
 size_t _dl_platformlen;
 unsigned long _dl_hwcap;
+fpu_control_t _dl_fpu_control = _FPU_DEFAULT;
 struct r_search_path *_dl_search_paths;
 const char *_dl_profile;
 const char *_dl_profile_output;

libio/genops.c

@@ -872,7 +872,7 @@ _IO_default_pbackfail (fp, c)
      int c;
 {
   if (fp->_IO_read_ptr > fp->_IO_read_base && !_IO_in_backup (fp)
-      && fp->_IO_read_ptr[-1] == c)
+      && (unsigned char) fp->_IO_read_ptr[-1] == c)
     --fp->_IO_read_ptr;
   else
     {

math/Makefile

@@ -29,7 +29,7 @@ headers		:= math.h bits/mathcalls.h bits/mathinline.h bits/huge_val.h \
 distribute	:= math_private.h machine/asm.h machine/endian.h
 
 # FPU support code.
-aux		:= setfpucw
+aux		:= setfpucw fpu_control
 
 # Build the -lm library.
 

math/Versions

@@ -4,6 +4,9 @@ libc {
     __isnan; __isnanf; __isnanl; __finite; __finitef; __finitel;
     __isinf; __isinff; __isinfl;
 
+    # global variables
+    __fpu_control;
+
     # c*
     copysign; copysignf; copysignl;
 

posix/execvp.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1992, 1995, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 92, 95, 96, 97, 98 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
@@ -121,6 +121,7 @@ execvp (file, argv)
 	      got_eacces = 1;
 	    case ENOENT:
 	    case ESTALE:
+	    case ENOTDIR:
 	      /* Those errors indicate the file is missing or not executable
 		 by us, in which case we want to just try the next path
 		 directory.  */

sysdeps/generic/dl-sysdep.c

@@ -41,6 +41,7 @@ extern size_t _dl_pagesize;
 extern const char *_dl_platform;
 extern unsigned long int _dl_hwcap;
 extern size_t _dl_platformlen;
+extern fpu_control_t _dl_fpu_control;
 extern void _end;
 extern void ENTRY_POINT (void);
 
@@ -128,7 +129,7 @@ _dl_sysdep_start (void **start_argptr,
 	_dl_hwcap = av->a_un.a_val;
 	break;
       case AT_FPUCW:
-	__fpu_control = av->a_un.a_val;
+	_dl_fpu_control = av->a_un.a_val;
 	break;
       }
 

sysdeps/unix/sysv/linux/alpha/bits/sigaction.h

@@ -37,7 +37,7 @@ struct sigaction
 /* Bits in `sa_flags'.  */
 #define	SA_NOCLDSTOP  0x00000004 /* Don't send SIGCHLD when children stop.  */
 #ifdef __USE_MISC
-# define SA_STACK     0x00000001 /* Use signal stack by using `sa_restorer'. */
+# define SA_ONSTACK   0x00000001 /* Use signal stack by using `sa_restorer'. */
 # define SA_RESTART   0x00000002 /* Restart syscall on signal return.  */
 # define SA_INTERRUPT 0x20000000 /* Historical no-op.  */
 # define SA_NOMASK    0x00000008 /* Don't automatically block the signal
@@ -47,6 +47,7 @@ struct sigaction
 /* Some aliases for the SA_ constants.  */
 # define SA_NODEFER   SA_NOMASK
 # define SA_RESETHAND SA_ONESHOT
+# define SA_STACK     SA_ONSTACK
 #endif
 
 /* Values for the HOW argument to `sigprocmask'.  */

sysdeps/unix/sysv/linux/init-first.c

@@ -34,6 +34,9 @@ static void init (int, char **, char **) __attribute__ ((unused));
 extern int _dl_starting_up;
 weak_extern (_dl_starting_up)
 
+extern fpu_control_t _dl_fpu_control;
+extern int _dl_fpu_control_set;
+
 /* Set nonzero if we have to be prepared for more then one libc being
    used in the process.  Safe assumption if initializer never runs.  */
 int __libc_multiple_libcs = 1;
@@ -61,8 +64,11 @@ init (int argc, char **argv, char **envp)
       __personality (PER_LINUX);
 
       /* Set the FPU control word to the proper default value if the
-	 kernel would use a different value.  */
+	 kernel would use a different value.  (In a static program we
-      if (__fpu_control != _FPU_DEFAULT)
+	 don't have this information.)  */
+#ifdef PIC
+      if (__fpu_control != _dl_fpu_control)
+#endif
 	__setfpucw (__fpu_control);
     }
 

sysdeps/unix/sysv/linux/mips/bits/sigaction.h

@@ -45,16 +45,17 @@ struct sigaction
 /* Bits in `sa_flags'.  */
 #define	SA_NOCLDSTOP  1		 /* Don't send SIGCHLD when children stop.  */
 #ifdef __USE_MISC
-# define SA_STACK     0x08000000 /* Use signal stack by using `sa_restorer'. */
+# define SA_ONSTACK   0x00000001 /* Use signal stack by using `sa_restorer'. */
-# define SA_RESTART   0x10000000 /* Restart syscall on signal return.  */
+# define SA_RESTART   0x00000004 /* Restart syscall on signal return.  */
-# define SA_INTERRUPT 0x20000000 /* Historical no-op.  */
+# define SA_INTERRUPT 0x00000000 /* Historical no-op.  */
-# define SA_NODEFER   0x40000000 /* Don't automatically block the signal when
+# define SA_NODEFER   0x00000010 /* Don't automatically block the signal when
 				    its handler is being executed.  */
-# define SA_RESETHAND 0x80000000 /* Reset to SIG_DFL on entry to handler.  */
+# define SA_RESETHAND 0x00000002 /* Reset to SIG_DFL on entry to handler.  */
 
 /* Some aliases for the SA_ constants.  */
 # define SA_NOMASK    SA_NODEFER
 # define SA_ONESHOT   SA_RESETHAND
+# define SA_STACK     SA_ONSTACK
 #endif
 
 /* Values for the HOW argument to `sigprocmask'.  */

sysdeps/unix/sysv/linux/sparc/bits/sigaction.h

@@ -43,7 +43,7 @@ struct sigaction
 #define SA_SIGINFO   0x00000200  /* Invoke signal-catching function with
 				    three arguments instead of one.  */
 #ifdef __USE_MISC
-# define SA_STACK     0x00000001 /* Use signal stack by using `sa_restorer'. */
+# define SA_ONSTACK   0x00000001 /* Use signal stack by using `sa_restorer'. */
 # define SA_RESTART   0x00000002 /* Restart syscall on signal return.  */
 # define SA_INTERRUPT 0x00000010 /* Historical no-op.  */
 # define SA_NOMASK    0x00000020 /* Don't automatically block the signal when
@@ -53,6 +53,7 @@ struct sigaction
 /* Some aliases for the SA_ constants.  */
 # define SA_NODEFER   SA_NOMASK
 # define SA_RESETHAND SA_ONESHOT
+# define SA_STACK     SA_ONSTACK
 #endif
 
 /* Values for the HOW argument to `sigprocmask'.  */