Update.

2003-01-27  Martin Schwidefsky  <schwidefsky@de.ibm.com>

	* elf/elf.h: Add new s390 relocs.
	* elf/tls-macros.h: Add s390 versions.
	* sysdeps/s390/Versions [GLIBC_2.3] (ld): Export __tls_get_offset.
	* sysdeps/s390/dl-tls.h: New file.
	* sysdeps/s390/libc-tls.c: New file.
	* sysdeps/s390/s390-32/dl-machine.h (elf_machine_type_class): Add TLS
	relocs for class PLT.
	(elf_machine_rela): Handle TLS relocs.
	* sysdeps/s390/s390-64/dl-machine.h: Likewise.
	* sysdeps/s390/s390-32/elf/configure.in: Add TLS check.
	* sysdeps/s390/s390-64/elf/configure.in: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/clone.S: Add support for
	CLONE_CHILD_*TID flags.
	* sysdeps/unix/sysv/linux/s390/s390-64/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/mmap.S: Use branch with 32
	bit offset.
	* sysdeps/unix/sysv/linux/s390/s390-64/socket.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscall.S: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S (__syscall_error):
	Support USE___THREAD. Define RTLD_PRIVATE_ERRNO variant.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.S (__syscall_error):
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h:
	(SYSCALL_ERROR_LABEL): Move define next to SYSCALL_ERROR_HANDLER.
	(SYSCALL_ERROR_HANDLER): Add USE___THREAD and RTLD_PRIVATE_ERRNO
	variants.
	* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h:
	(SYSCALL_ERROR_LABEL): Move define next to SYSCALL_ERROR_HANDLER. Use
	direct branch to syscall_error for !PIC and PIC && !_LIBC_REENTRANT.
	(SYSCALL_ERROR_HANDLER): Add USE___THREAD and RTLD_PRIVATE_ERRNO
	variants.

3 files changed, 152 insertions, 87 deletions

diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/clone.S b/sysdeps/unix/sysv/linux/s390/s390-32/clone.S
index c93570ed72..23fb4647ee 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/clone.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/clone.S
@@ -24,20 +24,24 @@
 #define _ERRNO_H	1
 #include <bits/errno.h>
 
-/*int __clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg);*/
-/* sys_clone(void *child_stack, unsigned long flags) */
+/* int __clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg,
+               void *tls, pid_t *parent_tid, pid_t *child_tid);  */
+/* sys_clone  (void *child_stack, unsigned long flags,
+               pid_t *parent_tid, pid_t *child_tid, void *tls);  */
 
 	.text
 ENTRY(__clone)
 	/* Sanity check arguments & move registers */
+	lr	%r0,%r5			/* move *arg out of the way */
 	ltr     %r1,%r2			/* no NULL function pointers */
 	lhi     %r2,-EINVAL
 	jz      SYSCALL_ERROR_LABEL
 	ltr     %r3,%r3			/* no NULL stack pointers */
 	jz      SYSCALL_ERROR_LABEL
-	/* move child_stack and flags, then call SVC */
+	/* set up registers, then call SVC */
 	lr      %r2,%r3
 	lr      %r3,%r4
+	lm	%r4,%r5,96(%r15)
 	svc     SYS_ify(clone)
 	ltr     %r2,%r2			/* check return code */
 	jm      SYSCALL_ERROR_LABEL
@@ -45,10 +49,10 @@ ENTRY(__clone)
 	br      %r14
 
 thread_start:
-	/* fn is in gpr 1, arg in gpr 5 */
-	lr      %r2,%r5         /* set first parameter to void *arg */
-	sr      %r11,%r11	/* terminate the stack frame */
+	/* fn is in gpr 1, arg in gpr 0 */
+	lr      %r2,%r0         /* set first parameter to void *arg */
 	ahi     %r15,-96        /* make room on the stack for the save area */
+	xc	0(4,%r15),0(%r15)
 	basr    %r14,%r1        /* jump to fn */
 #ifdef PIC
 	basr    %r12,0
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S
index 98b00722d8..94d772f67e 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
    Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
@@ -31,59 +31,94 @@
 	.text
 ENTRY(__syscall_error)
 #ifndef PIC
-#ifndef _LIBC_REENTRANT
-	lcr     %r2,%r2
-	basr    %r1,0
-.L0:    l       %r1,.L1-.L0(%r1)
-	st      %r2,0(0,%r1)
-	lhi     %r2,-1
-	br      %r14
-.L1:    .long  errno
-#else
-	stm     %r11,%r15,44(%r15)
-	lr      %r0,%r15
-	ahi     %r15,-96
-	st      %r0,0(%r15)
-	lcr     %r11,%r2
-	basr    %r13,0
-.L0:	l       %r1,.L1-.L0(%r13)
-	basr    %r14,%r1
-	st      %r11,0(%r2)
-	lhi     %r2,-1
-	l       %r15,0(%r15)
-	lm      %r11,%r15,44(%r15)
-	br      %r14
-.L1:	.long  __errno_location
+# if USE___THREAD
+#  ifndef NOT_IN_libc
+#   define SYSCALL_ERROR_ERRNO __libc_errno
+#  else
+#   define SYSCALL_ERROR_ERRNO errno
+#  endif
+	basr	%r1,0
+0:	l	%r1,1f-0b(%r1)
+	ear	%r3,%a0
+	lcr	%r2,%r2
+	st	%r2,0(%r1,%r3)
+	lhi	%r2,-1
+	br	%r14
+1:	.long	SYSCALL_ERROR_ERRNO@ntpoff
+# elif !defined _LIBC_REENTRANT
+	basr	%r1,0
+0:	l	%r1,1f-0b(%r1)
+	lcr	%r2,%r2
+	st	%r2,0(%r1)
+	lhi	%r2,-1
+	br	%r14
+1:	.long  errno
+# else
+	stm	%r13,%r15,52(%r15)
+	lr	%r0,%r15
+	ahi	%r15,-96
+	lcr	%r13,%r2
+	st	%r0,0(%r15)
+	basr	%r1,0
+0:	l	%r1,1f-0b(%r1)
+	basr	%r14,%r1
+	st	%r13,0(%r2)
+	lm	%r13,%r15,148(%r15)
+	lhi	%r2,-1
+	br	%r14
+1:	.long  __errno_location
 #endif
 #else
-#ifndef _LIBC_REENTRANT
-	basr    %r1,0
-.L0:    al      %r1,.L1-.L0(%r1)
-	l       %r1,errno@GOT12(%r1)
-	lcr     %r2,%r2
-	st      %r2,0(0,%r1)
-	lhi     %r2,-1
-	br      %r14
-.L1:    .long   _GLOBAL_OFFSET_TABLE_-0b
-#else
-	stm     %r11,%r15,44(%r15)
-	lr      %r0,%r15
-	ahi     %r15,-96
-	st      %r0,0(%r15)
-	lcr     %r11,%r2
-	basr    %r13,0
-.L0:	l       %r12,.L1-.L0(%r13)
-	ar      %r12,%r13
-	l       %r14,.L2-.L0(%r13)
-	bas     %r14,0(%r14,%r13)
-	st      %r11,0(0,%r2)
-	lhi     %r2,-1
-	l       %r15,0(%r15)
-	lm      %r11,%r15,44(%r15)
-	br      %r14
-.L1:	.long _GLOBAL_OFFSET_TABLE_ - .L0
-.L2:    .long __errno_location@PLT - .L0
-#endif
+# if RTLD_PRIVATE_ERRNO
+	basr	%r1,0
+0:	al	%r1,1f-0b(%r1)
+	lcr	%r2,%r2
+	st	%r2,0(%r1)
+	lhi	%r2,-1
+	br	%r14
+1:	.long	errno - 0b
+# elif USE___THREAD
+#  ifndef NOT_IN_libc
+#   define SYSCALL_ERROR_ERRNO __libc_errno
+#  else
+#   define SYSCALL_ERROR_ERRNO errno
+#  endif
+	basr	%r1,0
+0:	al	%r1,1f-0b(%r1)
+	ear	%r3,%a0
+	l	%r1,SYSCALL_ERROR_ERRNO@gotntpoff(%r1)
+	lcr	%r2,%r2
+	st	%r2,0(%r1,%r3)
+	lhi	%r2,-1
+	br	%r14
+1:	.long	_GLOBAL_OFFSET_TABLE_-0b
+# elif !defined _LIBC_REENTRANT
+	basr	%r1,0
+0:	al	%r1,1f-0b(%r1)
+	l	%r1,errno@GOT(%r1)
+	lcr	%r2,%r2
+	st	%r2,0(0,%r1)
+	lhi	%r2,-1
+	br	%r14
+1:	.long	_GLOBAL_OFFSET_TABLE_-0b
+# else
+	stm	%r11,%r15,44(%r15)
+	lr	%r0,%r15
+	ahi	%r15,-96
+	lcr	%r11,%r2
+	st	%r0,0(%r15)
+	basr	%r13,0
+0:	l	%r12,1f-0b(%r13)
+	l	%r1,2f-0b(%r13)
+	la	%r12,0(%r12,%r13)
+	bas	%r14,0(%r1,%r13)
+	st	%r11,0(%r2)
+	lm	%r11,%r15,140(%r15)
+	lhi	%r2,-1
+	br	%r14
+1:	.long _GLOBAL_OFFSET_TABLE_-0b
+2:	.long __errno_location@PLT-0b
+# endif
 #endif
 
 END (__syscall_error)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
index e89e6a1425..f7bfb8dac1 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
@@ -45,8 +45,6 @@
    number.  Linus said he will make sure the no syscall returns a value
    in -1 .. -4095 as a valid result so we can savely test with -4095.  */
 
-#define SYSCALL_ERROR_LABEL 0f
-
 #undef PSEUDO
 #define	PSEUDO(name, syscall_name, args)				      \
   .text;                                                                      \
@@ -54,42 +52,70 @@
     DO_CALL (syscall_name, args);                                             \
     lhi  %r4,-4095 ;                                                          \
     clr  %r2,%r4 ;		                                              \
-    jnl  SYSCALL_ERROR_LABEL ;                                                \
-  L(pseudo_end):
+    jnl  SYSCALL_ERROR_LABEL
 
 #undef PSEUDO_END
 #define PSEUDO_END(name)						      \
   SYSCALL_ERROR_HANDLER;						      \
   END (name)
 
-#ifndef _LIBC_REENTRANT
 #ifndef PIC
-#define SYSCALL_ERROR_HANDLER                                                 \
-0:  lcr     %r2,%r2 ;                                                         \
-    basr    %r1,0 ;                                                           \
-1:  l       %r1,2f-1b(%r1)                                                    \
-    st      %r2,0(%r1)                                                        \
-    lhi     %r2,-1                                                            \
-    br      %r14                                                              \
-2:  .long   errno
+# define SYSCALL_ERROR_LABEL 0f
+# define SYSCALL_ERROR_HANDLER \
+0:  basr  %r1,0;							      \
+1:  l     %r1,2f-1b(%r1);						      \
+    br    %r1;								      \
+2:  .long syscall_error
 #else
-#define SYSCALL_ERROR_HANDLER						      \
-0:  basr    %r1,0 ;                                                           \
-1:  al      %r1,2f-1b(%r1) ;                                                  \
-    l       %r1,errno@GOT12(%r1) ;                                            \
-    lcr     %r2,%r2 ;							      \
-    st      %r2,0(%r1) ;						      \
-    lhi     %r2,-1 ;                                                          \
-    br      %r14 ;                                                            \
-2:  .long   _GLOBAL_OFFSET_TABLE_-1b
+# if RTLD_PRIVATE_ERRNO
+#  define SYSCALL_ERROR_LABEL 0f
+#  define SYSCALL_ERROR_HANDLER \
+0:  basr  %r1,0;							      \
+1:  al    %r1,2f-1b(%r1);						      \
+    lcr   %r2,%r2;							      \
+    st    %r2,0(%r1);							      \
+    lhi   %r2,-1;							      \
+    br    %r14;								      \
+2:  .long errno-1b
+# elif defined _LIBC_REENTRANT
+#  if USE___THREAD
+#   ifndef NOT_IN_libc
+#    define SYSCALL_ERROR_ERRNO __libc_errno
+#   else
+#    define SYSCALL_ERROR_ERRNO errno
+#   endif
+#   define SYSCALL_ERROR_LABEL 0f
+#   define SYSCALL_ERROR_HANDLER \
+0:  lcr   %r0,%r2;							      \
+    basr  %r1,0;							      \
+1:  al    %r1,2f-1b(%r1);						      \
+    l     %r1,SYSCALL_ERROR_ERRNO@gotntpoff(%r1)			      \
+    ear   %r2,%a0							      \
+    st    %r0,0(%r1,%r2);						      \
+    lhi   %r2,-1;							      \
+    br    %r14;								      \
+2:  .long _GLOBAL_OFFSET_TABLE_-1b
+#  else
+#   define SYSCALL_ERROR_LABEL 0f
+#   define SYSCALL_ERROR_HANDLER \
+0:  basr  %r1,0;							      \
+1:  al    %r1,2f-1b(%r1);						      \
+    br    %r1;								      \
+2:  .long syscall_error@plt-1b
+#  endif
+# else
+#  define SYSCALL_ERROR_LABEL 0f
+#  define SYSCALL_ERROR_HANDLER \
+0:  basr  %r1,0;							      \
+1:  al    %r1,2f-1b(%r1);						      \
+    l     %r1,errno@GOT(%r1);						      \
+    lcr   %r2,%r2;							      \
+    st    %r2,0(%r1);							      \
+    lhi   %r2,-1;							      \
+    br    %r14;								      \
+2:  .long _GLOBAL_OFFSET_TABLE_-1b
+# endif /* _LIBC_REENTRANT */
 #endif /* PIC */
-#else
-#define SYSCALL_ERROR_HANDLER                                                 \
-0:  basr    %r1,0 ;                                                           \
-1:  al      %r1,2f-1b(%r1) ;                                                  \
-    br      %r1 ;                                                             \
-2:  .long   __syscall_error@PLT-1b
-#endif /* _LIBC_REENTRANT */
 
 /* Linux takes system call arguments in registers: