Update.

2003-08-11  Carlos O'Donell  <carlos@baldric.uwo.ca>

	* dlfcn/default.c (main): Cast dlsym loaded value to same type as main.
	Address passed to test_in_mod1 and test_in_mod2 without casting.
	* dlfcn/defaultmod1.c: Change prototype of test_in_mod1.
	(test_in_mod1): Cast dlsym loaded value to same type as mainp.
	* dlfcn/defaultmod2.c: Change prototype of test_in_mod2.
	(test_in_mod2): Cast dlsym loaded value to same type as mainp.

2003-08-15  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/sparc/sparc32/elf/configure.in (libc_cv_sparc32_tls):
	Change quotes before using [].

	* sysdeps/unix/sysv/linux/sparc/sys/user.h: New file.

	* sysdeps/sparc/sparc32/bits/atomic.h (__sparc32_atomic_lock):
	Renamed to...
	(__sparc32_atomic_locks): ...this.  Change into 64-byte array.
	(__sparc32_atomic_do_lock, __sparc32_atomic_do_unlock): Add addr
	argument.  Select one of 64 locks from address bits.
	(atomic_compare_and_exchange_val_acq,
	atomic_compare_and_exchange_bool_acq): Pass memory address to
	__sparc32_atomic_do_{,un}lock.

3 files changed, 104 insertions, 13 deletions

diff --git a/sysdeps/sparc/sparc32/bits/atomic.h b/sysdeps/sparc/sparc32/bits/atomic.h
index c4e0abfe06..00d799392b 100644
--- a/sysdeps/sparc/sparc32/bits/atomic.h
+++ b/sysdeps/sparc/sparc32/bits/atomic.h
@@ -22,28 +22,34 @@
 #define _BITS_ATOMIC_H	1
 
 /* We have no compare and swap, just test and set.
-   The following implementation contends on one single global lock
+   The following implementation contends on 64 global locks
    per library and assumes no variable will be accessed using atomic.h
    macros from two different libraries.  */
 
-volatile unsigned char __sparc32_atomic_lock
-  __attribute__ ((nocommon, section (".gnu.linkonce.b.__sparc32_atomic_lock"),
+volatile unsigned char __sparc32_atomic_locks[64]
+  __attribute__ ((nocommon, section (".gnu.linkonce.b.__sparc32_atomic_locks"),
 		  visibility ("hidden")));
 
-#define __sparc32_atomic_do_lock() \
+#define __sparc32_atomic_do_lock(addr) \
   do								      \
     {								      \
       unsigned int __old_lock;					      \
+      unsigned int __idx = (((long) addr >> 2) ^ ((long) addr >> 12)) \
+			   & 63;				      \
       do							      \
 	__asm ("ldstub %1, %0"					      \
-	       : "=r" (__old_lock), "=m" (__sparc32_atomic_lock)      \
-	       : "m" (__sparc32_atomic_lock));			      \
+	       : "=r" (__old_lock),				      \
+		 "=m" (__sparc32_atomic_locks[__idx])		      \
+	       : "m" (__sparc32_atomic_locks[__idx]));		      \
       while (__old_lock);					      \
     }								      \
   while (0)
 
-#define __sparc32_atomic_do_unlock() \
-  do __sparc32_atomic_lock = 0; while (0)
+#define __sparc32_atomic_do_unlock(addr) \
+  do								      \
+    __sparc32_atomic_locks[(((long) addr >> 2)			      \
+			    ^ ((long) addr >> 12)) & 63] = 0;	      \
+  while (0)
 
 /* The only basic operation needed is compare and exchange.  */
 #define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \
@@ -51,11 +57,11 @@ volatile unsigned char __sparc32_atomic_lock
      __typeof (*mem) __acev_ret;				      \
      __typeof (*mem) __acev_newval = (newval);			      \
 								      \
-     __sparc32_atomic_do_lock ();				      \
+     __sparc32_atomic_do_lock (__acev_memp);			      \
      __acev_ret = *__acev_memp;					      \
      if (__acev_ret == (oldval))				      \
        *__acev_memp = __acev_newval;				      \
-     __sparc32_atomic_do_unlock ();				      \
+     __sparc32_atomic_do_unlock (__acev_memp);			      \
      __acev_ret; })
 
 #define atomic_compare_and_exchange_bool_acq(mem, newval, oldval) \
@@ -63,13 +69,13 @@ volatile unsigned char __sparc32_atomic_lock
      int __aceb_ret;						      \
      __typeof (*mem) __aceb_newval = (newval);			      \
 								      \
-     __sparc32_atomic_do_lock ();				      \
+     __sparc32_atomic_do_lock (__aceb_memp);			      \
      __aceb_ret = 0;						      \
      if (*__aceb_memp == (oldval))				      \
        *__aceb_memp = __aceb_newval;				      \
      else							      \
        __aceb_ret = 1;						      \
-     __sparc32_atomic_do_unlock ();				      \
+     __sparc32_atomic_do_unlock (__aceb_memp);			      \
      __aceb_ret; })
 
 #endif	/* bits/atomic.h */
diff --git a/sysdeps/sparc/sparc32/elf/configure b/sysdeps/sparc/sparc32/elf/configure
index e5ff89c065..d4f9517959 100644
--- a/sysdeps/sparc/sparc32/elf/configure
+++ b/sysdeps/sparc/sparc32/elf/configure
@@ -29,7 +29,7 @@ baz:	sethi	%tgd_hi22(foo), %l1
 	add	%o0, %l1, %l1, %tldo_add(bar)
 	sethi	%tie_hi22(foo), %l1
 	add	%l1, %tie_lo10(foo), %l1
-	ld	%l7 + %l1, %l1, %tie_ld(foo)
+	ld	[%l7 + %l1], %l1, %tie_ld(foo)
 	add	%g7, %l1, %l1, %tie_add(foo)
 	sethi	%tle_hix22(foo), %l1
 	xor	%l1, %tle_lox10(foo), %l1
diff --git a/sysdeps/unix/sysv/linux/sparc/sys/user.h b/sysdeps/unix/sysv/linux/sparc/sys/user.h
new file mode 100644
index 0000000000..2aad01b0ff
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sys/user.h
@@ -0,0 +1,85 @@
+/* Copyright (C) 2003 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _SYS_USER_H
+#define _SYS_USER_H	1
+
+struct sunos_regs
+{
+  unsigned int psr, pc, npc, y;
+  unsigned int regs[15];
+};
+
+struct sunos_fpqueue
+{
+  unsigned int *addr;
+  unsigned int inst;
+};
+
+struct sunos_fp
+{
+  union
+    {
+      unsigned int regs[32];
+      double reg_dbls[16];
+    } fregs;
+  unsigned int fsr;
+  unsigned int flags;
+  unsigned int extra;
+  unsigned int fpq_count;
+  struct sunos_fpqueue fpq[16];
+};
+
+struct sunos_fpu
+{
+  struct sunos_fp fpstatus;
+};
+
+/* The SunOS core file header layout. */
+struct user {
+  unsigned int magic;
+  unsigned int len;
+  struct sunos_regs regs;
+  struct
+    {
+      unsigned char a_dynamic :1;
+      unsigned char a_toolversion :7;
+      unsigned char a_machtype;
+      unsigned short a_info;
+      unsigned int a_text;
+      unsigned int a_data;
+      unsigned int a_bss;
+      unsigned int a_syms;
+      unsigned int a_entry;
+      unsigned int a_trsize;
+      unsigned int a_drsize;
+    } uexec;
+  int           signal;
+  size_t        u_tsize;
+  size_t        u_dsize;
+  size_t        u_ssize;
+  char          u_comm[17];
+  struct sunos_fpu fpu;
+  unsigned int  sigcode;
+};
+
+#define NBPG			0x2000
+#define UPAGES			1
+#define SUNOS_CORE_MAGIC	0x080456
+
+#endif