2002-08-28 22:37:20 +00:00
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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/ia64/elf.
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2002-11-08 17:11:02 +00:00
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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 ia64 TLS support, libc_cv_ia64_tls, [dnl
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cat > conftest.s <<\EOF
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2011-09-11 19:02:01 +00:00
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.section ".tdata","awT",@progbits
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2002-11-08 17:11:02 +00:00
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foo: data8 25
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2011-09-11 19:02:01 +00:00
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.text
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addl r16 = @ltoff(@dtpmod(foo#)), gp
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addl r17 = @ltoff(@dtprel(foo#)), gp
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addl r18 = @ltoff(@tprel(foo#)), gp
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addl r19 = @dtprel(foo#), gp
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adds r21 = @dtprel(foo#), r13
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movl r23 = @dtprel(foo#)
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addl r20 = @tprel(foo#), gp
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adds r22 = @tprel(foo#), r13
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movl r24 = @tprel(foo#)
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2002-11-08 17:11:02 +00:00
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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_ia64_tls=yes
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else
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libc_cv_ia64_tls=no
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fi
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rm -f conftest*])
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2011-09-11 19:02:01 +00:00
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if test $libc_cv_ia64_tls = no; then
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AC_MSG_ERROR([the assembler must support TLS])
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2002-11-08 17:11:02 +00:00
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fi
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2002-08-28 22:37:20 +00:00
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dnl It is always possible to access static and hidden symbols in an
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dnl position independent way.
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AC_DEFINE(PI_STATIC_AND_HIDDEN)
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