2006-04-22 02:21:00 +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/hppa/elf.
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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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2011-10-20 18:15:51 +00:00
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if test $libc_cv_hppa_tls = no; then
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AC_MSG_ERROR([the assembler must support TLS])
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2006-04-22 02:21:00 +00:00
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fi
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