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36 lines
945 B
Plaintext
36 lines
945 B
Plaintext
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# Local configure fragment for sysdeps/unix/sysv/linux.
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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 $ac_n "checking for i386 TLS support""... $ac_c" 1>&6
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echo "configure:7: checking for i386 TLS support" >&5
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if eval "test \"`echo '$''{'libc_cv_386_tls'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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cat > conftest.s <<\EOF
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.section ".tdata", "awT", @progbits
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foo: .long 1
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.section ".tbss", "awT", @nobits
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.comm bar,4,4
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.text
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baz: leal bar@TLSLDM(%ebx), %eax
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leal bar@DTPOFF(%eax), %edx
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subl foo@GOTTPOFF(%edx), %eax
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subl $bar@TPOFF, %eax
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EOF
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if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:22: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
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libc_cv_386_tls=yes
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else
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libc_cv_386_tls=no
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fi
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rm -f conftest*
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fi
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echo "$ac_t""$libc_cv_386_tls" 1>&6
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if test $libc_cv_386_tls = yes; then
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cat >> confdefs.h <<\EOF
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#define HAVE_TLS_SUPPORT 1
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EOF
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fi
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