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* sysdeps/alpha/elf/configure.in: New file. Check for TLS support.

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* sysdeps/alpha/elf/configure: New file (generated).
This commit is contained in:
Roland McGrath 2002-06-04 19:03:41 +00:00
parent c35f132002
commit 17d7201a97
2 changed files with 58 additions and 0 deletions
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ChangeLog
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@ -1,3 +1,8 @@
2002-06-04 Roland McGrath <roland@frob.com>
* sysdeps/alpha/elf/configure.in: New file. Check for TLS support.
* sysdeps/alpha/elf/configure: New file (generated).
2002-06-02 Roland McGrath <roland@frob.com>
* include/link.h: Include <tls.h> to make sure USE_TLS is defined.

53
sysdeps/alpha/elf/configure.in Normal file
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sinclude(./aclocal.m4)dnl Autoconf lossage
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/alpha/elf.
if test "$usetls" != no; then
# Check for support of thread-local storage handling in assembler and
# linker.
AC_CACHE_CHECK(for Alpha TLS support, libc_cv_alpha_tls, [dnl
cat > conftest.s <<\EOF
.section ".tdata", "awT", @progbits
.globl foo
foo: .quad 1
.section ".tbss", "awT", @nobits
.globl bar
bar: .skip 8
.text
baz:
.set nomacro
ldq $27, __tls_get_addr($29) !literal!1
ldq $16, a($29) !tlsgd!1
jsr $26, ($27), __tls_get_addr !lituse_tlsgd!1
jsr $26, ($27), __tls_get_addr !lituse_tlsldm!2
ldq $27, __tls_get_addr($29) !literal!2
ldq $16, b($29) !tlsldm!2
ldq $16, c($29) !tlsgd
ldq $16, d($29) !tlsldm
ldq $16, e($29) !tlsgd!3
ldq $16, f($29) !tlsldm!4
ldq $16, g($29) !gotdtprel
ldah $16, h($31) !dtprelhi
lda $16, i($16) !dtprello
lda $16, j($31) !dtprel
ldq $16, k($29) !gottprel
ldah $16, l($31) !tprelhi
lda $16, m($16) !tprello
lda $16, n($31) !tprel
EOF
dnl
if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
libc_cv_alpha_tls=yes
else
libc_cv_alpha_tls=no
fi
rm -f conftest*])
if test $libc_cv_alpha_tls = yes; then
AC_DEFINE(HAVE_TLS_SUPPORT)
fi
fi