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-rw-r--r--libc/sysdeps/s390/s390-32/configure122
-rw-r--r--libc/sysdeps/s390/s390-32/configure.in29
-rw-r--r--libc/sysdeps/s390/s390-32/dl-machine.h24
-rw-r--r--libc/sysdeps/s390/s390-32/memcmp.S66
-rw-r--r--libc/sysdeps/s390/s390-32/memcpy.S90
-rw-r--r--libc/sysdeps/s390/s390-32/memset.S61
-rw-r--r--libc/sysdeps/s390/s390-32/multiarch/Makefile9
-rw-r--r--libc/sysdeps/s390/s390-32/multiarch/ifunc-resolve.c69
-rw-r--r--libc/sysdeps/s390/s390-32/multiarch/memcmp.S102
-rw-r--r--libc/sysdeps/s390/s390-32/multiarch/memcpy.S96
-rw-r--r--libc/sysdeps/s390/s390-32/multiarch/memset.S111
-rw-r--r--libc/sysdeps/s390/s390-32/s390-mcount.S4
-rw-r--r--libc/sysdeps/s390/s390-32/sysdep.h2
-rw-r--r--libc/sysdeps/s390/s390-32/tls-macros.h99
-rw-r--r--libc/sysdeps/s390/s390-32/tst-audit.h25
15 files changed, 700 insertions, 209 deletions
diff --git a/libc/sysdeps/s390/s390-32/configure b/libc/sysdeps/s390/s390-32/configure
index 484548454..e982e817f 100644
--- a/libc/sysdeps/s390/s390-32/configure
+++ b/libc/sysdeps/s390/s390-32/configure
@@ -1,126 +1,4 @@
-
-# as_fn_set_status STATUS
-# -----------------------
-# Set $? to STATUS, without forking.
-as_fn_set_status ()
-{
- return $1
-} # as_fn_set_status
-
-# as_fn_exit STATUS
-# -----------------
-# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
-as_fn_exit ()
-{
- set +e
- as_fn_set_status $1
- exit $1
-} # as_fn_exit
-if expr a : '\(a\)' >/dev/null 2>&1 &&
- test "X`expr 00001 : '.*\(...\)'`" = X001; then
- as_expr=expr
-else
- as_expr=false
-fi
-
-if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
- as_basename=basename
-else
- as_basename=false
-fi
-
-as_me=`$as_basename -- "$0" ||
-$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
- X"$0" : 'X\(//\)$' \| \
- X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
- sed '/^.*\/\([^/][^/]*\)\/*$/{
- s//\1/
- q
- }
- /^X\/\(\/\/\)$/{
- s//\1/
- q
- }
- /^X\/\(\/\).*/{
- s//\1/
- q
- }
- s/.*/./; q'`
-
-
- as_lineno_1=$LINENO as_lineno_1a=$LINENO
- as_lineno_2=$LINENO as_lineno_2a=$LINENO
- eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
- test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
- # Blame Lee E. McMahon (1931-1989) for sed's syntax. :-)
- sed -n '
- p
- /[$]LINENO/=
- ' <$as_myself |
- sed '
- s/[$]LINENO.*/&-/
- t lineno
- b
- :lineno
- N
- :loop
- s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
- t loop
- s/-\n.*//
- ' >$as_me.lineno &&
- chmod +x "$as_me.lineno" ||
- { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
-
- # Don't try to exec as it changes $[0], causing all sort of problems
- # (the dirname of $[0] is not the place where we might find the
- # original and so on. Autoconf is especially sensitive to this).
- . "./$as_me.lineno"
- # Exit status is that of the last command.
- exit
-}
-
# This file is generated from configure.in by Autoconf. DO NOT EDIT!
# Local configure fragment for sysdeps/s390.
-# Check for support of thread-local storage handling in assembler and
-# linker.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for s390 TLS support" >&5
-$as_echo_n "checking for s390 TLS support... " >&6; }
-if ${libc_cv_390_tls+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat > conftest.S <<\EOF
- .section ".tdata", "awT", @progbits
-foo: .long 25
- .text
- .long foo@TLSGD
- .long foo@TLSLDM
- .long foo@DTPOFF
- .long foo@NTPOFF
- .long foo@GOTNTPOFF
- .long foo@INDNTPOFF
- l %r1,foo@GOTNTPOFF(%r12)
- l %r1,0(%r1):tls_load:foo
- bas %r14,0(%r1,%r13):tls_gdcall:foo
- bas %r14,0(%r1,%r13):tls_ldcall:foo
-EOF
-if { ac_try='${CC-cc} -S $CFLAGS conftest.S 1>&5'
- { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; }; then
- libc_cv_390_tls=yes
-else
- libc_cv_390_tls=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_390_tls" >&5
-$as_echo "$libc_cv_390_tls" >&6; }
-if test $libc_cv_390_tls = no; then
- as_fn_error $? "the assembler must support TLS" "$LINENO" 5
-fi
-
$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
diff --git a/libc/sysdeps/s390/s390-32/configure.in b/libc/sysdeps/s390/s390-32/configure.in
index 529bdda36..b5af4e12f 100644
--- a/libc/sysdeps/s390/s390-32/configure.in
+++ b/libc/sysdeps/s390/s390-32/configure.in
@@ -1,35 +1,6 @@
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/s390.
-# Check for support of thread-local storage handling in assembler and
-# linker.
-AC_CACHE_CHECK(for s390 TLS support, libc_cv_390_tls, [dnl
-cat > conftest.S <<\EOF
- .section ".tdata", "awT", @progbits
-foo: .long 25
- .text
- .long foo@TLSGD
- .long foo@TLSLDM
- .long foo@DTPOFF
- .long foo@NTPOFF
- .long foo@GOTNTPOFF
- .long foo@INDNTPOFF
- l %r1,foo@GOTNTPOFF(%r12)
- l %r1,0(%r1):tls_load:foo
- bas %r14,0(%r1,%r13):tls_gdcall:foo
- bas %r14,0(%r1,%r13):tls_ldcall:foo
-EOF
-dnl
-if AC_TRY_COMMAND(${CC-cc} -S $CFLAGS conftest.S 1>&AS_MESSAGE_LOG_FD); then
- libc_cv_390_tls=yes
-else
- libc_cv_390_tls=no
-fi
-rm -f conftest*])
-if test $libc_cv_390_tls = no; then
- AC_MSG_ERROR([the assembler must support TLS])
-fi
-
dnl It is always possible to access static and hidden symbols in an
dnl position independent way.
AC_DEFINE(PI_STATIC_AND_HIDDEN)
diff --git a/libc/sysdeps/s390/s390-32/dl-machine.h b/libc/sysdeps/s390/s390-32/dl-machine.h
index 3eb7e4115..e56ad676c 100644
--- a/libc/sysdeps/s390/s390-32/dl-machine.h
+++ b/libc/sysdeps/s390/s390-32/dl-machine.h
@@ -1,6 +1,5 @@
/* Machine-dependent ELF dynamic relocation inline functions. S390 Version.
- Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 2000-2012 Free Software Foundation, Inc.
Contributed by Carl Pederson & Martin Schwidefsky.
This file is part of the GNU C Library.
@@ -27,6 +26,7 @@
#include <string.h>
#include <link.h>
#include <sysdeps/s390/dl-procinfo.h>
+#include <dl-irel.h>
/* This is an older, now obsolete value. */
#define EM_S390_OLD 0xA390
@@ -305,8 +305,21 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
Elf32_Addr value = sym == NULL ? 0 : sym_map->l_addr + sym->st_value;
+ if (sym != NULL
+ && __builtin_expect (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC, 0)
+ && __builtin_expect (sym->st_shndx != SHN_UNDEF, 1)
+ && __builtin_expect (!skip_ifunc, 1))
+ value = elf_ifunc_invoke (value);
+
switch (r_type)
{
+ case R_390_IRELATIVE:
+ value = map->l_addr + reloc->r_addend;
+ if (__builtin_expect (!skip_ifunc, 1))
+ value = elf_ifunc_invoke (value);
+ *reloc_addr = value;
+ break;
+
case R_390_GLOB_DAT:
case R_390_JMP_SLOT:
*reloc_addr = value + reloc->r_addend;
@@ -444,6 +457,13 @@ elf_machine_lazy_rel (struct link_map *map,
map->l_mach.plt
+ (((Elf32_Addr) reloc_addr) - map->l_mach.gotplt) * 8;
}
+ else if (__builtin_expect (r_type == R_390_IRELATIVE, 1))
+ {
+ Elf32_Addr value = map->l_addr + reloc->r_addend;
+ if (__builtin_expect (!skip_ifunc, 1))
+ value = elf_ifunc_invoke (value);
+ *reloc_addr = value;
+ }
else
_dl_reloc_bad_type (map, r_type, 1);
}
diff --git a/libc/sysdeps/s390/s390-32/memcmp.S b/libc/sysdeps/s390/s390-32/memcmp.S
new file mode 100644
index 000000000..9ff84a36a
--- /dev/null
+++ b/libc/sysdeps/s390/s390-32/memcmp.S
@@ -0,0 +1,66 @@
+/* memcmp - compare two memory blocks. 32 bit S/390 version.
+ Copyright (C) 2012 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, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+/* INPUT PARAMETERS
+ %r2 = address of first memory area
+ %r3 = address of second memory area
+ %r4 = number of bytes to compare. */
+
+ .text
+#ifdef USE_MULTIARCH
+ENTRY(memcmp_g5)
+#else
+ENTRY(memcmp)
+#endif
+ .machine "g5"
+ basr %r5,0
+.L_G5_16:
+ ltr %r4,%r4
+ je .L_G5_4
+ ahi %r4,-1
+ lr %r1,%r4
+ srl %r1,8
+ ltr %r1,%r1
+ jne .L_G5_12
+ ex %r4,.L_G5_17-.L_G5_16(%r5)
+.L_G5_4:
+ ipm %r2
+ sll %r2,2
+ sra %r2,30
+ br %r14
+.L_G5_12:
+ clc 0(256,%r3),0(%r2)
+ jne .L_G5_4
+ la %r3,256(%r3)
+ la %r2,256(%r2)
+ brct %r1,.L_G5_12
+ ex %r4,.L_G5_17-.L_G5_16(%r5)
+ j .L_G5_4
+.L_G5_17:
+ clc 0(1,%r3),0(%r2)
+#ifdef USE_MULTIARCH
+END(memcmp_g5)
+#else
+END(memcmp)
+libc_hidden_builtin_def (memcmp)
+weak_alias(memcmp, bcmp)
+#endif
diff --git a/libc/sysdeps/s390/s390-32/memcpy.S b/libc/sysdeps/s390/s390-32/memcpy.S
index b2a688ea3..90cc4cbf7 100644
--- a/libc/sysdeps/s390/s390-32/memcpy.S
+++ b/libc/sysdeps/s390/s390-32/memcpy.S
@@ -1,7 +1,6 @@
/* memcpy - copy a block from source to destination. S/390 version.
- Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
+ Copyright (C) 2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
- Contributed by Martin Schwidefsky (schwidefsky@de.ibm.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
@@ -17,42 +16,67 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
/* INPUT PARAMETERS
%r2 = address of destination memory area
%r3 = address of source memory area
%r4 = number of bytes to copy. */
-#include "sysdep.h"
-#include "asm-syntax.h"
-
- .text
+#ifdef USE_MULTIARCH
+ENTRY(memcpy_g5)
+#else
ENTRY(memcpy)
- ltr %r4,%r4
- jz .L3
- ahi %r4,-1 # length - 1
- lr %r1,%r2 # copy destination address
- lr %r5,%r4
- srl %r5,8
- ltr %r5,%r5 # < 256 bytes to move ?
- jz .L1
- chi %r5,255 # > 1MB to move ?
- jh .L4
-.L0: mvc 0(256,%r1),0(%r3) # move in 256 byte chunks
- la %r1,256(%r1)
- la %r3,256(%r3)
- brct %r5,.L0
-.L1: bras %r5,.L2 # setup base pointer for execute
- mvc 0(1,%r1),0(%r3) # instruction for execute
-.L2: ex %r4,0(%r5) # execute mvc with length ((%r4)&255)+1
-.L3: br %r14
- # data copies > 1MB are faster with mvcle.
-.L4: ahi %r4,1 # length + 1
- lr %r5,%r4 # source length
- lr %r4,%r3 # source address
- lr %r3,%r5 # destination length = source length
-.L5: mvcle %r2,%r4,0 # thats it, MVCLE is your friend
- jo .L5
- lr %r2,%r1 # return destination address
- br %r14
+#endif
+ .machine "g5"
+ st %r13,52(%r15)
+ .cfi_offset 13, -44
+ basr %r13,0
+.L_G5_16:
+ ltr %r4,%r4
+ je .L_G5_4
+ ahi %r4,-1
+ lr %r5,%r4
+ srl %r5,8
+ ltr %r5,%r5
+ lr %r1,%r2
+ jne .L_G5_12
+ ex %r4,.L_G5_17-.L_G5_16(%r13)
+.L_G5_4:
+ l %r13,52(%r15)
+ br %r14
+.L_G5_13:
+ chi %r5,4096 # Switch to mvcle for copies >1MB
+ jh memcpy_mvcle
+.L_G5_12:
+ mvc 0(256,%r1),0(%r3)
+ la %r1,256(%r1)
+ la %r3,256(%r3)
+ brct %r5,.L_G5_12
+ ex %r4,.L_G5_17-.L_G5_16(%r13)
+ j .L_G5_4
+.L_G5_17:
+ mvc 0(1,%r1),0(%r3)
+#ifdef USE_MULTIARCH
+END(memcpy_g5)
+#else
END(memcpy)
libc_hidden_builtin_def (memcpy)
+#endif
+
+ENTRY(memcpy_mvcle)
+ # Using as standalone function will result in unexpected
+ # results since the length field is incremented by 1 in order to
+ # compensate the changes already done in the functions above.
+ ahi %r4,1 # length + 1
+ lr %r5,%r4 # source length
+ lr %r4,%r3 # source address
+ lr %r3,%r5 # destination length = source length
+.L_MVCLE_1:
+ mvcle %r2,%r4,0 # thats it, MVCLE is your friend
+ jo .L_MVCLE_1
+ lr %r2,%r1 # return destination address
+ br %r14
+END(memcpy_mvcle)
diff --git a/libc/sysdeps/s390/s390-32/memset.S b/libc/sysdeps/s390/s390-32/memset.S
index 00e908278..31a70f0c9 100644
--- a/libc/sysdeps/s390/s390-32/memset.S
+++ b/libc/sysdeps/s390/s390-32/memset.S
@@ -1,7 +1,6 @@
/* Set a block of memory to some byte value. For IBM S390
- Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
+ Copyright (C) 2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
- Contributed by Martin Schwidefsky (schwidefsky@de.ibm.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
@@ -17,28 +16,50 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-/*
- * R2 = address to memory area
- * R3 = byte to fill memory with
- * R4 = number of bytes to fill
- */
#include "sysdep.h"
#include "asm-syntax.h"
- .text
+/* INPUT PARAMETERS
+ %r2 = address to memory area
+ %r3 = byte to fill memory with
+ %r4 = number of bytes to fill. */
+
+ .text
+
+#ifdef USE_MULTIARCH
+ENTRY(memset_g5)
+#else
ENTRY(memset)
- ltr %r4,%r4
- jz .L1
- lr %r0,%r2 # save source address
- lr %r1,%r3 # move pad byte to R1
- lr %r3,%r4
- sr %r4,%r4 # no source for MVCLE, only a pad byte
- sr %r5,%r5
-.L0: mvcle %r2,%r4,0(%r1) # thats it, MVCLE is your friend
- jo .L0
- lr %r2,%r0 # return value is source address
-.L1:
- br %r14
+#endif
+ .machine "g5"
+ basr %r5,0
+.L_G5_19:
+ ltr %r4,%r4
+ je .L_G5_4
+ stc %r3,0(%r2)
+ chi %r4,1
+ lr %r1,%r2
+ je .L_G5_4
+ ahi %r4,-2
+ lr %r3,%r4
+ srl %r3,8
+ ltr %r3,%r3
+ jne .L_G5_14
+ ex %r4,.L_G5_20-.L_G5_19(%r5)
+.L_G5_4:
+ br %r14
+.L_G5_14:
+ mvc 1(256,%r1),0(%r1)
+ la %r1,256(%r1)
+ brct %r3,.L_G5_14
+ ex %r4,.L_G5_20-.L_G5_19(%r5)
+ j .L_G5_4
+.L_G5_20:
+ mvc 1(1,%r1),0(%r1)
+#ifdef USE_MULTIARCH
+END(memset_g5)
+#else
END(memset)
libc_hidden_builtin_def (memset)
+#endif
diff --git a/libc/sysdeps/s390/s390-32/multiarch/Makefile b/libc/sysdeps/s390/s390-32/multiarch/Makefile
new file mode 100644
index 000000000..5b0cd49c7
--- /dev/null
+++ b/libc/sysdeps/s390/s390-32/multiarch/Makefile
@@ -0,0 +1,9 @@
+ASFLAGS-.o += -Wa,-mzarch
+ASFLAGS-.os += -Wa,-mzarch
+ASFLAGS-.op += -Wa,-mzarch
+ASFLAGS-.og += -Wa,-mzarch
+ASFLAGS-.ob += -Wa,-mzarch
+ASFLAGS-.oS += -Wa,-mzarch
+ifeq ($(subdir),string)
+sysdep_routines += ifunc-resolve memset memcpy memcmp
+endif
diff --git a/libc/sysdeps/s390/s390-32/multiarch/ifunc-resolve.c b/libc/sysdeps/s390/s390-32/multiarch/ifunc-resolve.c
new file mode 100644
index 000000000..fd6e36706
--- /dev/null
+++ b/libc/sysdeps/s390/s390-32/multiarch/ifunc-resolve.c
@@ -0,0 +1,69 @@
+/* IFUNC resolver function for CPU specific functions.
+ 32 bit S/390 version.
+ Copyright (C) 2012 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <unistd.h>
+#include <dl-procinfo.h>
+
+#define STFLE_BITS_Z10 34 /* General instructions extension */
+#define STFLE_BITS_Z196 45 /* Distinct operands, pop ... */
+
+#ifndef NOT_IN_libc
+
+#define IFUNC_RESOLVE(FUNC) \
+ asm (".globl " #FUNC "\n\t" \
+ ".type " #FUNC ",@gnu_indirect_function\n\t" \
+ ".set " #FUNC ",resolve_" #FUNC "\n\t" \
+ ".globl __GI_" #FUNC "\n\t" \
+ ".set __GI_" #FUNC "," #FUNC "\n"); \
+ \
+ extern void *FUNC##_z10; \
+ extern void *FUNC##_z196; \
+ extern void *FUNC##_g5; \
+ \
+ void *resolve_##FUNC (unsigned long int dl_hwcap) \
+ { \
+ if ((dl_hwcap & HWCAP_S390_STFLE) \
+ && (dl_hwcap & HWCAP_S390_HIGH_GPRS)) /* Implies zarch */ \
+ { \
+ /* We want just 1 double word to be returned. */ \
+ register unsigned long reg0 asm("0") = 0; \
+ unsigned long long stfle_bits; \
+ \
+ asm volatile(".insn s,0xb2b00000,%0" "\n\t" /* stfle */ \
+ : "=QS" (stfle_bits), "+d" (reg0) \
+ : : "cc"); \
+ \
+ if ((stfle_bits & (1ULL << (63 - STFLE_BITS_Z196))) != 0) \
+ return &FUNC##_z196; \
+ else if ((stfle_bits & (1ULL << (63 - STFLE_BITS_Z10))) != 0) \
+ return &FUNC##_z10; \
+ } \
+ return &FUNC##_g5; \
+ }
+
+IFUNC_RESOLVE(memset)
+IFUNC_RESOLVE(memcmp)
+asm(".weak bcmp ; bcmp = memcmp");
+
+/* In the static lib memcpy is needed before the reloc is resolved. */
+#ifdef SHARED
+IFUNC_RESOLVE(memcpy)
+#endif
+
+#endif
diff --git a/libc/sysdeps/s390/s390-32/multiarch/memcmp.S b/libc/sysdeps/s390/s390-32/multiarch/memcmp.S
new file mode 100644
index 000000000..cd8ea86b0
--- /dev/null
+++ b/libc/sysdeps/s390/s390-32/multiarch/memcmp.S
@@ -0,0 +1,102 @@
+/* CPU specific memcmp implementations. 32 bit S/390 version.
+ Copyright (C) 2012 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, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+/* INPUT PARAMETERS
+ %r2 = address of first memory area
+ %r3 = address of second memory area
+ %r4 = number of bytes to compare. */
+
+ .text
+
+#ifndef NOT_IN_libc
+
+ENTRY(memcmp_z196)
+ .machine "z196"
+ ltr %r4,%r4
+ je .L_Z196_4
+ ahi %r4,-1
+ srlk %r1,%r4,8
+ ltr %r1,%r1
+ jne .L_Z196_2
+.L_Z196_3:
+ exrl %r4,.L_Z196_14
+.L_Z196_4:
+ ipm %r2
+ sll %r2,2
+ sra %r2,30
+ br %r14
+.L_Z196_17:
+ la %r3,256(%r3)
+ la %r2,256(%r2)
+ ahi %r1,-1
+ je .L_Z196_3
+.L_Z196_2:
+ pfd 1,512(%r3)
+ pfd 1,512(%r2)
+ clc 0(256,%r3),0(%r2)
+ je .L_Z196_17
+ ipm %r2
+ sll %r2,2
+ sra %r2,30
+ br %r14
+.L_Z196_14:
+ clc 0(1,%r3),0(%r2)
+END(memcmp_z196)
+
+ENTRY(memcmp_z10)
+ .machine "z10"
+ ltr %r4,%r4
+ je .L_Z10_4
+ ahi %r4,-1
+ lr %r1,%r4
+ srl %r1,8
+ cijlh %r1,0,.L_Z10_12
+.L_Z10_3:
+ exrl %r4,.L_Z10_15
+.L_Z10_4:
+ ipm %r2
+ sll %r2,2
+ sra %r2,30
+ br %r14
+.L_Z10_12:
+ pfd 1,512(%r3)
+ pfd 1,512(%r2)
+ clc 0(256,%r3),0(%r2)
+ jne .L_Z10_4
+ la %r3,256(%r3)
+ la %r2,256(%r2)
+ brct %r1,.L_Z10_12
+ j .L_Z10_3
+.L_Z10_15:
+ clc 0(1,%r3),0(%r2)
+END(memcmp_z10)
+
+#endif
+
+#include "../memcmp.S"
+
+#ifdef NOT_IN_libc
+.globl memcmp
+.set memcmp,memcmp_g5
+.weak bcmp
+.set bcmp,memcmp_g5
+#endif
diff --git a/libc/sysdeps/s390/s390-32/multiarch/memcpy.S b/libc/sysdeps/s390/s390-32/multiarch/memcpy.S
new file mode 100644
index 000000000..40f4acfbb
--- /dev/null
+++ b/libc/sysdeps/s390/s390-32/multiarch/memcpy.S
@@ -0,0 +1,96 @@
+/* CPU specific memcpy implementations. 32 bit S/390 version.
+ Copyright (C) 2012 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, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+/* INPUT PARAMETERS
+ %r2 = target operands address
+ %r3 = source operands address
+ %r4 = number of bytes to copy. */
+
+ .text
+
+#if defined SHARED && !defined NOT_IN_libc
+
+ENTRY(memcpy_z196)
+ .machine "z196"
+ llgfr %r4,%r4
+ ltgr %r4,%r4
+ je .L_Z196_4
+ aghi %r4,-1
+ lr %r1,%r2
+ srlg %r5,%r4,8
+ ltgr %r5,%r5
+ jne .L_Z196_5
+.L_Z196_3:
+ exrl %r4,.L_Z196_14
+.L_Z196_4:
+ br %r14
+.L_Z196_5:
+ cgfi %r5,262144 # Switch to mvcle for copies >64MB
+ jh memcpy_mvcle
+.L_Z196_2:
+ pfd 1,768(%r3)
+ pfd 2,768(%r1)
+ mvc 0(256,%r1),0(%r3)
+ aghi %r5,-1
+ la %r1,256(%r1)
+ la %r3,256(%r3)
+ jne .L_Z196_2
+ j .L_Z196_3
+.L_Z196_14:
+ mvc 0(1,%r1),0(%r3)
+END(memcpy_z196)
+
+ENTRY(memcpy_z10)
+ .machine "z10"
+ llgfr %r4,%r4
+ cgije %r4,0,.L_Z10_4
+ aghi %r4,-1
+ lr %r1,%r2
+ srlg %r5,%r4,8
+ cgijlh %r5,0,.L_Z10_13
+.L_Z10_3:
+ exrl %r4,.L_Z10_15
+.L_Z10_4:
+ br %r14
+.L_Z10_13:
+ cgfi %r5,65535 # Switch to mvcle for copies >16MB
+ jh memcpy_mvcle
+.L_Z10_12:
+ pfd 1,768(%r3)
+ pfd 2,768(%r1)
+ mvc 0(256,%r1),0(%r3)
+ la %r1,256(%r1)
+ la %r3,256(%r3)
+ brctg %r5,.L_Z10_12
+ j .L_Z10_3
+.L_Z10_15:
+ mvc 0(1,%r1),0(%r3)
+END(memcpy_z10)
+
+#endif
+
+#include "../memcpy.S"
+
+#if !defined SHARED || defined NOT_IN_libc
+.globl memcpy
+.set memcpy,memcpy_g5
+#endif
diff --git a/libc/sysdeps/s390/s390-32/multiarch/memset.S b/libc/sysdeps/s390/s390-32/multiarch/memset.S
new file mode 100644
index 000000000..5ce7b4de8
--- /dev/null
+++ b/libc/sysdeps/s390/s390-32/multiarch/memset.S
@@ -0,0 +1,111 @@
+/* Set a block of memory to some byte value. 32 bit S/390 version.
+ Copyright (C) 2012 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, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+/* INPUT PARAMETERS
+ %r2 = address of memory area
+ %r3 = byte to fill memory with
+ %r4 = number of bytes to fill. */
+
+ .text
+
+#ifndef NOT_IN_libc
+
+ENTRY(memset_z196)
+ .machine "z196"
+ llgfr %r4,%r4
+ ltgr %r4,%r4
+ je .L_Z196_4
+ stc %r3,0(%r2)
+ lr %r1,%r2
+ cghi %r4,1
+ je .L_Z196_4
+ aghi %r4,-2
+ srlg %r5,%r4,8
+ ltgr %r5,%r5
+ jne .L_Z196_1
+.L_Z196_3:
+ exrl %r4,.L_Z196_17
+.L_Z196_4:
+ br %r14
+.L_Z196_1:
+ cgfi %r5,1048576
+ jh memset_mvcle # Switch to mvcle for >256MB
+.L_Z196_2:
+ pfd 2,1024(%r1)
+ mvc 1(256,%r1),0(%r1)
+ aghi %r5,-1
+ la %r1,256(%r1)
+ jne .L_Z196_2
+ j .L_Z196_3
+.L_Z196_17:
+ mvc 1(1,%r1),0(%r1)
+END(memset_z196)
+
+ENTRY(memset_z10)
+ .machine "z10"
+ llgfr %r4,%r4
+ cgije %r4,0,.L_Z10_4
+ stc %r3,0(%r2)
+ lr %r1,%r2
+ cgije %r4,1,.L_Z10_4
+ aghi %r4,-2
+ srlg %r5,%r4,8
+ cgijlh %r5,0,.L_Z10_15
+.L_Z10_3:
+ exrl %r4,.L_Z10_18
+.L_Z10_4:
+ br %r14
+.L_Z10_15:
+ cgfi %r5,163840 # Switch to mvcle for >40MB
+ jh memset_mvcle
+.L_Z10_14:
+ pfd 2,1024(%r1)
+ mvc 1(256,%r1),0(%r1)
+ la %r1,256(%r1)
+ brctg %r5,.L_Z10_14
+ j .L_Z10_3
+.L_Z10_18:
+ mvc 1(1,%r1),0(%r1)
+END(memset_z10)
+
+ENTRY(memset_mvcle)
+ ahi %r4,2 # take back the change done by the caller
+ lr %r0,%r2 # save source address
+ lr %r1,%r3 # move pad byte to R1
+ lr %r3,%r4
+ sr %r4,%r4 # no source for MVCLE, only a pad byte
+ sr %r5,%r5
+.L0: mvcle %r2,%r4,0(%r1) # thats it, MVCLE is your friend
+ jo .L0
+ lr %r2,%r0 # return value is source address
+.L1:
+ br %r14
+END(memset_mvcle)
+
+#endif
+
+#include "../memset.S"
+
+#ifdef NOT_IN_libc
+.globl memset
+.set memset,memset_g5
+#endif
diff --git a/libc/sysdeps/s390/s390-32/s390-mcount.S b/libc/sysdeps/s390/s390-32/s390-mcount.S
index 6e09c79a6..1c8c79ada 100644
--- a/libc/sysdeps/s390/s390-32/s390-mcount.S
+++ b/libc/sysdeps/s390/s390-32/s390-mcount.S
@@ -1,5 +1,5 @@
/* S/390-specific implemetation of profiling support.
- Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+ Copyright (C) 2000-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com)
@@ -47,7 +47,7 @@
* _mcount may not modify any register.
*/
- ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(_mcount)
+ .globl C_SYMBOL_NAME(_mcount)
ASM_TYPE_DIRECTIVE(C_SYMBOL_NAME(_mcount), @function)
cfi_startproc
.align ALIGNARG(4)
diff --git a/libc/sysdeps/s390/s390-32/sysdep.h b/libc/sysdeps/s390/s390-32/sysdep.h
index 43da126ac..24a07a2a9 100644
--- a/libc/sysdeps/s390/s390-32/sysdep.h
+++ b/libc/sysdeps/s390/s390-32/sysdep.h
@@ -32,7 +32,7 @@
/* Define an entry point visible from C. */
#define ENTRY(name) \
- ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
+ .globl C_SYMBOL_NAME(name); \
ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
.align ALIGNARG(2); \
C_LABEL(name) \
diff --git a/libc/sysdeps/s390/s390-32/tls-macros.h b/libc/sysdeps/s390/s390-32/tls-macros.h
new file mode 100644
index 000000000..8a0ad5863
--- /dev/null
+++ b/libc/sysdeps/s390/s390-32/tls-macros.h
@@ -0,0 +1,99 @@
+#define TLS_LE(x) \
+ ({ unsigned long __offset; \
+ asm ("bras %0,1f\n" \
+ "0:\t.long " #x "@ntpoff\n" \
+ "1:\tl %0,0(%0)" \
+ : "=a" (__offset) : : "cc" ); \
+ (int *) (__builtin_thread_pointer() + __offset); })
+
+#ifdef PIC
+# define TLS_IE(x) \
+ ({ unsigned long __offset; \
+ asm ("bras %0,1f\n" \
+ "0:\t.long " #x "@gotntpoff\n" \
+ "1:\tl %0,0(%0)\n\t" \
+ "l %0,0(%0,%%r12):tls_load:" #x \
+ : "=&a" (__offset) : : "cc" ); \
+ (int *) (__builtin_thread_pointer() + __offset); })
+#else
+# define TLS_IE(x) \
+ ({ unsigned long __offset; \
+ asm ("bras %0,1f\n" \
+ "0:\t.long " #x "@indntpoff\n" \
+ "1:\t l %0,0(%0)\n\t" \
+ "l %0,0(%0):tls_load:" #x \
+ : "=&a" (__offset) : : "cc" ); \
+ (int *) (__builtin_thread_pointer() + __offset); })
+#endif
+
+#ifdef PIC
+# define TLS_LD(x) \
+ ({ unsigned long __offset, __save12; \
+ asm ("bras %0,1f\n" \
+ "0:\t.long _GLOBAL_OFFSET_TABLE_-0b\n\t" \
+ ".long __tls_get_offset@plt-0b\n\t" \
+ ".long " #x "@tlsldm\n\t" \
+ ".long " #x "@dtpoff\n" \
+ "1:\tlr %1,%%r12\n\t" \
+ "l %%r12,0(%0)\n\t" \
+ "la %%r12,0(%%r12,%0)\n\t" \
+ "l %%r1,4(%0)\n\t" \
+ "l %%r2,8(%0)\n\t" \
+ "bas %%r14,0(%%r1,%0):tls_ldcall:" #x "\n\t" \
+ "l %0,12(%0)\n\t" \
+ "alr %0,%%r2\n\t" \
+ "lr %%r12,%1" \
+ : "=&a" (__offset), "=&a" (__save12) \
+ : : "cc", "0", "1", "2", "3", "4", "5" ); \
+ (int *) (__builtin_thread_pointer() + __offset); })
+#else
+# define TLS_LD(x) \
+ ({ unsigned long __offset; \
+ asm ("bras %0,1f\n" \
+ "0:\t.long _GLOBAL_OFFSET_TABLE_\n\t" \
+ ".long __tls_get_offset@plt\n\t" \
+ ".long " #x "@tlsldm\n\t" \
+ ".long " #x "@dtpoff\n" \
+ "1:\tl %%r12,0(%0)\n\t" \
+ "l %%r1,4(%0)\n\t" \
+ "l %%r2,8(%0)\n\t" \
+ "bas %%r14,0(%%r1):tls_ldcall:" #x "\n\t" \
+ "l %0,12(%0)\n\t" \
+ "alr %0,%%r2" \
+ : "=&a" (__offset) : : "cc", "0", "1", "2", "3", "4", "5", "12" ); \
+ (int *) (__builtin_thread_pointer() + __offset); })
+#endif
+
+#ifdef PIC
+# define TLS_GD(x) \
+ ({ unsigned long __offset, __save12; \
+ asm ("bras %0,1f\n" \
+ "0:\t.long _GLOBAL_OFFSET_TABLE_-0b\n\t" \
+ ".long __tls_get_offset@plt-0b\n\t" \
+ ".long " #x "@tlsgd\n" \
+ "1:\tlr %1,%%r12\n\t" \
+ "l %%r12,0(%0)\n\t" \
+ "la %%r12,0(%%r12,%0)\n\t" \
+ "l %%r1,4(%0)\n\t" \
+ "l %%r2,8(%0)\n\t" \
+ "bas %%r14,0(%%r1,%0):tls_gdcall:" #x "\n\t" \
+ "lr %0,%%r2\n\t" \
+ "lr %%r12,%1" \
+ : "=&a" (__offset), "=&a" (__save12) \
+ : : "cc", "0", "1", "2", "3", "4", "5" ); \
+ (int *) (__builtin_thread_pointer() + __offset); })
+#else
+# define TLS_GD(x) \
+ ({ unsigned long __offset; \
+ asm ("bras %0,1f\n" \
+ "0:\t.long _GLOBAL_OFFSET_TABLE_\n\t" \
+ ".long __tls_get_offset@plt\n\t" \
+ ".long " #x "@tlsgd\n" \
+ "1:\tl %%r12,0(%0)\n\t" \
+ "l %%r1,4(%0)\n\t" \
+ "l %%r2,8(%0)\n\t" \
+ "bas %%r14,0(%%r1):tls_gdcall:" #x "\n\t" \
+ "lr %0,%%r2" \
+ : "=&a" (__offset) : : "cc", "0", "1", "2", "3", "4", "5", "12" ); \
+ (int *) (__builtin_thread_pointer() + __offset); })
+#endif
diff --git a/libc/sysdeps/s390/s390-32/tst-audit.h b/libc/sysdeps/s390/s390-32/tst-audit.h
new file mode 100644
index 000000000..051e5abaf
--- /dev/null
+++ b/libc/sysdeps/s390/s390-32/tst-audit.h
@@ -0,0 +1,25 @@
+/* Definitions for testing PLT entry/exit auditing. S/390 32-bit version.
+
+ Copyright (C) 2012 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#define pltenter la_s390_32_gnu_pltenter
+#define pltexit la_s390_32_gnu_pltexit
+#define La_regs La_s390_32_regs
+#define La_retval La_s390_32_retval
+#define int_retval lrv_r2
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