2006-04-21 Carlos O'Donell <carlos@systemhalted.org>
* sysdeps/hppa/dl-tls.h: New file * sysdeps/hppa/libc-tls.c: Likewise. * sysdeps/hppa/tls-macros.h: Likewise. * sysdeps/hppa/elf/configure: Likewise. * sysdeps/hppa/elf/configure.in: Likewise.
This commit is contained in:
Carlos O'Donell
parent
48dcf1c597
commit
c2dd372ef4
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@ -1,3 +1,11 @@
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2006-04-21 Carlos O'Donell <carlos@systemhalted.org>
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* sysdeps/hppa/dl-tls.h: New file
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* sysdeps/hppa/libc-tls.c: Likewise.
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* sysdeps/hppa/tls-macros.h: Likewise.
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* sysdeps/hppa/elf/configure: Likewise.
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* sysdeps/hppa/elf/configure.in: Likewise.
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2006-04-20 Carlos O'Donell <carlos@systemhalted.org>
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* sysdeps/hppa/fpu/fclrexcpt.c (feclearexcept): Use union to
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@ -0,0 +1,29 @@
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/* Thread-local storage handling in the ELF dynamic linker. hppa version.
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Copyright (C) 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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/* Type used for the representation of TLS information in the GOT. */
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typedef struct
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{
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unsigned long int ti_module;
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unsigned long int ti_offset;
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} tls_index;
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extern void *__tls_get_addr (tls_index *ti);
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@ -0,0 +1,63 @@
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# This file is generated from configure.in by Autoconf. DO NOT EDIT!
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# Local configure fragment for sysdeps/hppa/elf.
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if test "$usetls" != no; then
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# Check for support of thread-local storage handling in assembler and
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# linker.
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echo "$as_me:$LINENO: checking for hppa TLS support" >&5
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echo $ECHO_N "checking for hppa TLS support... $ECHO_C" >&6
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if test "${libc_cv_hppa_tls+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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cat > conftest.s <<\EOF
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; Setup tls data
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.section ".tdata","awT",@progbits
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foo: .data 32
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.text
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; Test general dyanmic relocations
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test0:
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addil LT'foo-$tls_gdidx$, %r19
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ldo RT'foo-$tls_gdidx$(%r1), %r26
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b __tls_get_addr
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nop
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; Test local dynamic relocations
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test1:
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addil LT'foo-$tls_ldidx$, %r19
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b __tls_get_addr
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ldo RT'foo-$tls_ldidx$(%r1), %r26
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ldo RR'foo-$tls_dtpoff$(%r1), %r25
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; More variables can be loaded...
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; Test initial exec reloctiosn
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test2:
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mfctl %cr27, %r26
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addil LT'foo-$tls_ieoff$, %r19
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ldw RT'foo-$tls_ieoff$(%r1), %r25
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add %r26, %r25, %r24
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; Test local exec relocations
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test3:
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mfctl %cr27, %r26
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addil LR'foo-$tls_leoff$, %r26
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ldo RR'foo-$tls_leoff$(%r1), %r25
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; Done all the TLS tests.
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EOF
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if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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libc_cv_hppa_tls=yes
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else
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libc_cv_hppa_tls=no
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fi
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rm -f conftest*
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fi
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echo "$as_me:$LINENO: result: $libc_cv_hppa_tls" >&5
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echo "${ECHO_T}$libc_cv_hppa_tls" >&6
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if test $libc_cv_hppa_tls = yes; then
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_TLS_SUPPORT 1
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_ACEOF
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fi
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fi
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@ -0,0 +1,49 @@
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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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# Local configure fragment for sysdeps/hppa/elf.
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if test "$usetls" != no; then
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# Check for support of thread-local storage handling in assembler and
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# linker.
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AC_CACHE_CHECK(for hppa TLS support, libc_cv_hppa_tls, [dnl
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cat > conftest.s <<\EOF
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; Setup tls data
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.section ".tdata","awT",@progbits
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foo: .data 32
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.text
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; Test general dyanmic relocations
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test0:
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addil LT'foo-$tls_gdidx$, %r19
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ldo RT'foo-$tls_gdidx$(%r1), %r26
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b __tls_get_addr
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nop
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; Test local dynamic relocations
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test1:
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addil LT'foo-$tls_ldidx$, %r19
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b __tls_get_addr
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ldo RT'foo-$tls_ldidx$(%r1), %r26
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ldo RR'foo-$tls_dtpoff$(%r1), %r25
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; More variables can be loaded...
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; Test initial exec reloctiosn
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test2:
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mfctl %cr27, %r26
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addil LT'foo-$tls_ieoff$, %r19
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ldw RT'foo-$tls_ieoff$(%r1), %r25
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add %r26, %r25, %r24
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; Test local exec relocations
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test3:
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mfctl %cr27, %r26
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addil LR'foo-$tls_leoff$, %r26
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ldo RR'foo-$tls_leoff$(%r1), %r25
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; Done all the TLS tests.
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EOF
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dnl
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if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
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libc_cv_hppa_tls=yes
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else
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libc_cv_hppa_tls=no
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fi
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rm -f conftest*])
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if test $libc_cv_hppa_tls = yes; then
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AC_DEFINE(HAVE_TLS_SUPPORT)
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fi
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fi
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@ -0,0 +1,38 @@
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/* Thread-local storage handling in the ELF dynamic linker. hppa version.
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Copyright (C) 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <csu/libc-tls.c>
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#include <dl-tls.h>
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#if USE_TLS
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/* On hppa, linker optimizations are not required, so __tls_get_addr
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can be called even in statically linked binaries. In this case module
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must be always 1 and PT_TLS segment exist in the binary, otherwise it
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would not link. */
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void *
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__tls_get_addr (tls_index *ti)
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{
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dtv_t *dtv = THREAD_DTV ();
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return (char *) dtv[1].pointer.val + ti->ti_offset;
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}
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#endif
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@ -0,0 +1,114 @@
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/* HPPA Local Exec TLS access. */
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# define TLS_LE(x) \
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({ int * __result; \
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unsigned long __tmp; \
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asm ( \
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" mfctl %%cr27, %1\n" \
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" addil LR'" #x "-$tls_leoff$, %1\n" \
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" ldo RR'" #x "-$tls_leoff$(%%r1), %0\n" \
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: "=r" (__result), "=r" (__tmp) \
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: \
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: "r1" ); \
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__result; \
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})
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/* HPPA Initial Exec TLS access. */
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# ifdef PIC
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# define TLS_IE(x) \
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({ int * __result; \
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unsigned long __tmp, __tmp2; \
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asm ( \
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" mfctl %%cr27, %1\n" \
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" addil LT'" #x "-$tls_ieoff$, %%r19\n" \
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" ldw RT'" #x "-$tls_ieoff$(%%r1), %2\n" \
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" add %1, %2, %0\n" \
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: "=r" (__result), "=r" (__tmp), "=r" (__tmp2) \
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: \
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: "r1" ); \
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__result; \
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})
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# else
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# define TLS_IE(x) \
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({ int * __result; \
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unsigned long __tmp, __tmp2; \
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asm ( \
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" mfctl %%cr27, %1\n" \
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" addil LR'" #x "-$tls_ieoff$, %%r27\n" \
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" ldw RR'" #x "-$tls_ieoff$(%%r1), %2\n" \
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" add %1, %2, %0\n" \
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: "=r" (__result), "=r" (__tmp), "=r" (__tmp2) \
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: \
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: "r1" ); \
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__result; \
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})
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# endif
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# ifdef PIC
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/* HPPA Local Dynamic TLS access. */
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# define TLS_LD(x) \
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({ int * __result; \
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asm ( \
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" copy %%r19, %%r4\n" \
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" addil LT'" #x "-$tls_ldidx$, %%r19\n" \
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" bl __tls_get_addr, %%r2\n" \
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" ldo RT'" #x "-$tls_ldidx$(%%r1), %%r26\n" \
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" addil LR'" #x "-$tls_dtpoff$, %%r28\n" \
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" ldo RR'" #x "-$tls_dtpoff$(%%r1), %0\n" \
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" copy %%r4, %%r19\n" \
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: "=r" (__result) \
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: \
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: "r1", "r2", "r4", "r20", "r21", "r22", "r23", "r24", \
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"r25", "r26", "r28", "r29", "r31" ); \
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__result; \
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})
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# else
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# define TLS_LD(x) \
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({ int * __result; \
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asm ( \
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" addil LR'" #x "-$tls_ldidx$, %%r27\n" \
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" bl __tls_get_addr, %%r2\n" \
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" ldo RR'" #x "-$tls_ldidx$(%%r1), %%r26\n" \
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" addil LR'" #x "-$tls_dtpoff$, %%r28\n" \
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" ldo RR'" #x "-$tls_dtpoff$(%%r1), %0\n" \
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: "=r" (__result) \
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: \
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: "r1", "r2", "r20", "r21", "r22", "r23", "r24", \
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"r25", "r26", "r28", "r29", "r31" ); \
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__result; \
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})
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# endif
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/* HPPA General Dynamic TLS access. */
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# ifdef PIC
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# define TLS_GD(x) \
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({ int * __result; \
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asm ( \
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" copy %%r19, %%r4\n" \
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" addil LT'" #x "-$tls_gdidx$, %%r19\n" \
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" bl __tls_get_addr, %%r2\n" \
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" ldo RT'" #x "-$tls_gdidx$(%%r1), %%r26\n" \
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" copy %%r28, %0\n" \
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" copy %%r4, %%r19\n" \
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: "=r" (__result) \
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: \
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: "r1", "r2", "r4", "r20", "r21", "r22", "r23", "r24", \
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"r25", "r26", "r28", "r29", "r31" ); \
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__result; \
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})
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# else
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# define TLS_GD(x) \
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({ int * __result; \
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asm ( \
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" addil LR'" #x "-$tls_gdidx$, %%r27\n" \
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" bl __tls_get_addr, %%r2\n" \
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" ldo RR'" #x "-$tls_gdidx$(%%r1), %%r26\n" \
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" copy %%r28, %0\n" \
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: "=r" (__result) \
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: \
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: "r1", "r2", "r20", "r21", "r22", "r23", "r24", \
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"r25", "r26", "r28", "r29", "r31" ); \
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__result; \
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})
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#endif
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