(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

12 files changed, 66 insertions, 68 deletions

diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/Dist b/sysdeps/unix/sysv/linux/s390/s390-32/Dist
new file mode 100644
index 0000000000..c0a7dc8c93
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/Dist
@@ -0,0 +1,7 @@
+clone.S
+oldgetrlimit64.c
+setresuid.c
+setresgid.c
+setfsuid.c
+setfsgid.c
+ucontext_i.h
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/chown.c b/sysdeps/unix/sysv/linux/s390/s390-32/chown.c
index 5909ba8a43..0656b396f8 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/chown.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/chown.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000,2001,2002,2003,2004,2006 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2001, 2002, 2003, 2004 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
@@ -25,7 +25,7 @@
 #include <bp-checks.h>
 
 #include <linux/posix_types.h>
-#include <kernel-features.h>
+#include "kernel-features.h"
 
 /*
   In Linux 2.1.x the chown functions have been changed.  A new function lchown
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c b/sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c
deleted file mode 100644
index dfed76aeb4..0000000000
--- a/sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/i386/fchownat.c>
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/fxstatat.c b/sysdeps/unix/sysv/linux/s390/s390-32/fxstatat.c
deleted file mode 100644
index 0f8b3135d8..0000000000
--- a/sysdeps/unix/sysv/linux/s390/s390-32/fxstatat.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/i386/fxstatat.c>
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S b/sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S
index 3b38d19488..2578b3ddc0 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S
@@ -72,4 +72,4 @@ ENTRY(__getcontext)
 	br	%r14
 END(__getcontext)
 
-weak_alias (__getcontext, getcontext)
+weak_alias(__getcontext, getcontext)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/lchown.c b/sysdeps/unix/sysv/linux/s390/s390-32/lchown.c
index 1e64a0ef75..ccdb67b15c 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/lchown.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/lchown.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2001, 2003, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2001, 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
@@ -24,7 +24,7 @@
 #include <bp-checks.h>
 
 #include <linux/posix_types.h>
-#include <kernel-features.h>
+#include "kernel-features.h"
 
 # ifdef __NR_lchown32
 #  if __ASSUME_32BITUIDS == 0
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/makecontext.c b/sysdeps/unix/sysv/linux/s390/s390-32/makecontext.c
index 94760e0c2b..29c8640e92 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/makecontext.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/makecontext.c
@@ -37,6 +37,8 @@
                +-----------------------+
              n | overflow parameters   | 96
                +-----------------------+
+             8 | trampoline            | 96+n
+               +-----------------------+
    The registers are set up like this:
      %r2-%r6: parameters 1 to 5
      %r7    : (*func) pointer
@@ -53,16 +55,18 @@
 void
 __makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
 {
-  extern void __makecontext_ret (void);
   unsigned long *sp;
   va_list ap;
   int i;
 
-  sp = (unsigned long *) (((unsigned long) ucp->uc_stack.ss_sp
-			   + ucp->uc_stack.ss_size) & -8L);
+  sp = (long *) (((long) ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size) & -8L);
+
+  /* Setup the trampoline.  */
+  *--sp = 0x07f90000;
+  *--sp = 0x0de71828;
 
   /* Set the return address to trampoline.  */
-  ucp->uc_mcontext.gregs[14] = (long) __makecontext_ret;
+  ucp->uc_mcontext.gregs[14] = (long) sp;
 
   /* Set register parameters.  */
   va_start (ap, argc);
@@ -94,12 +98,4 @@ __makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
   ucp->uc_mcontext.gregs[15] = (long) sp;
 }
 
-asm(".text\n"
-    ".type __makecontext_ret,@function\n"
-    "__makecontext_ret:\n"
-    "      basr  %r14,%r7\n"
-    "      lr    %r2,%r8\n"
-    "      br    %r9\n"
-    ".size __makecontext_ret, .-__makecontext_ret");
-
 weak_alias (__makecontext, makecontext)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S b/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
index cce8d29735..7ad360a3a0 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
@@ -69,4 +69,4 @@ ENTRY(__setcontext)
 	br	%r14
 END(__setcontext)
 
-weak_alias (__setcontext, setcontext)
+weak_alias(__setcontext, setcontext)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S b/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
index bf70f11cc7..d9abb62c0b 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
@@ -105,4 +105,4 @@ ENTRY(__swapcontext)
 	/* Return.  */
 	br	%r14
 END(__swapcontext)	
-weak_alias (__swapcontext, swapcontext)
+weak_alias(__swapcontext, swapcontext)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/syscall.S b/sysdeps/unix/sysv/linux/s390/s390-32/syscall.S
index b7e1736891..d1ce925ac3 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/syscall.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/syscall.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2001, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2001 Free Software Foundation, Inc.
    Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
@@ -48,14 +48,13 @@ ENTRY (syscall)
 	lr     %r4,%r5             /* third parameter  */
 	lr     %r5,%r6             /* fourth parameter */
 	l      %r6,192(%r15)       /* fifth parameter  */
-	l      %r7,196(%r15)       /* sixth parameter  */
 
-	basr   %r8,0
-0:	cl     %r1,4f-0b(%r8)      /* svc number < 256? */
+	basr   %r7,0
+0:	cl     %r1,4f-0b(%r7)      /* svc number < 256? */
 	jl     2f
 1:	svc    0
 	j      3f
-2:	ex     %r1,1b-0b(%r8)      /* lsb of R1 is subsituted as SVC number */
+2:	ex     %r1,1b-0b(%r7)      /* lsb of R1 is subsituted as SVC number */
 3:	l      %r15,0(%r15)        /* load back chain */
 	cfi_adjust_cfa_offset (-96)
 	lm     %r6,15,24(%r15)     /* load registers */
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
index b86072bd30..43b1b951d5 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
@@ -1,5 +1,4 @@
-/* Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006
-   Free Software Foundation, Inc.
+/* Copyright (C) 2000,01,02,03,04 Free Software Foundation, Inc.
    Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
@@ -24,7 +23,6 @@
 #include <sysdeps/s390/s390-32/sysdep.h>
 #include <sysdeps/unix/sysdep.h>
 #include <dl-sysdep.h>	/* For RTLD_PRIVATE_ERRNO.  */
-#include <tls.h>
 
 /* For Linux we can use the system call table in the header file
 	/usr/include/asm/unistd.h
@@ -113,8 +111,8 @@
 0:  lcr   %r0,%r2;							      \
     basr  %r1,0;							      \
 1:  al    %r1,2f-1b(%r1);						      \
-    l     %r1,SYSCALL_ERROR_ERRNO@gotntpoff(%r1);			      \
-    ear   %r2,%a0;							      \
+    l     %r1,SYSCALL_ERROR_ERRNO@gotntpoff(%r1)			      \
+    ear   %r2,%a0							      \
     st    %r0,0(%r1,%r2);						      \
     lhi   %r2,-1;							      \
     br    %r14;								      \
@@ -149,28 +147,19 @@
 	arg 3		4	     call-clobbered
 	arg 4		5	     call-clobbered
 	arg 5		6	     call-saved
-	arg 6		7	     call-saved
 
    (Of course a function with say 3 arguments does not have entries for
    arguments 4 and 5.)
-   For system calls with 6 parameters a stack operation is required
-   to load the 6th parameter to register 7. Call saved register 7 is
-   moved to register 0 and back to avoid an additional stack frame.
+   S390 does not need to do ANY stack operations to get its parameters
+   right.
  */
 
 #define DO_CALL(syscall, args)						      \
-  .if args > 5;								      \
-    lr %r0,%r7;								      \
-    l %r7,96(%r15);							      \
-  .endif;								      \
   .if SYS_ify (syscall) < 256;						      \
     svc SYS_ify (syscall);						      \
   .else;								      \
     lhi %r1,SYS_ify (syscall);						      \
     svc 0;								      \
-  .endif;								      \
-  .if args > 5;								      \
-    lr %r7,%r0;								      \
   .endif
 
 #define ret                                                                   \
@@ -264,9 +253,6 @@
 #define DECLARGS_5(arg1, arg2, arg3, arg4, arg5) \
 	DECLARGS_4(arg1, arg2, arg3, arg4) \
 	register unsigned long gpr6 asm ("6") = (unsigned long)(arg5);
-#define DECLARGS_6(arg1, arg2, arg3, arg4, arg5, arg6) \
-	DECLARGS_5(arg1, arg2, arg3, arg4, arg5) \
-	register unsigned long gpr7 asm ("7") = (unsigned long)(arg6);
 
 #define ASMFMT_0
 #define ASMFMT_1 , "0" (gpr2)
@@ -274,28 +260,5 @@
 #define ASMFMT_3 , "0" (gpr2), "d" (gpr3), "d" (gpr4)
 #define ASMFMT_4 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5)
 #define ASMFMT_5 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6)
-#define ASMFMT_6 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6), "d" (gpr7)
-
-
-/* Pointer mangling support.  */
-#if defined NOT_IN_libc && defined IS_IN_rtld
-/* We cannot use the thread descriptor because in ld.so we use setjmp
-   earlier than the descriptor is initialized.  */
-#else
-/* For the time being just use stack_guard rather than a separate
-   pointer_guard.  */
-# ifdef __ASSEMBLER__
-#  define PTR_MANGLE(reg, tmpreg) \
-  ear     tmpreg,%a0;			\
-  x       reg,STACK_GUARD(tmpreg)
-#  define PTR_MANGLE2(reg, tmpreg) \
-  x       reg,STACK_GUARD(tmpreg)
-#  define PTR_DEMANGLE(reg, tmpreg) PTR_MANGLE (reg, tmpreg)
-# else
-#  define PTR_MANGLE(var) \
-  (var) = (void *) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ())
-#  define PTR_DEMANGLE(var)	PTR_MANGLE (var)
-# endif
-#endif
 
 #endif /* _LINUX_S390_SYSDEP_H */
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.h b/sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.h
new file mode 100644
index 0000000000..2e51f04e65
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.h
@@ -0,0 +1,35 @@
+/* Copyright (C) 2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
+
+   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.  */
+
+/* Constants shared between setcontext() and getcontext().  Don't
+   install this header file.  */
+
+#define SIG_BLOCK	0
+#define SIG_UNBLOCK	1
+#define SIG_SETMASK	2
+
+#define SC_FLGS 0x000
+#define SC_LINK 0x004
+#define SC_STCK 0x008
+#define SC_PSW  0x018
+#define SC_GPRS 0x020
+#define SC_ACRS 0x060
+#define SC_FPC  0x0A0
+#define SC_FPRS 0x0A8
+#define SC_MASK 0x128