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5bbfc1ea70
* sysdeps/x86_64/sysdep.h [HAVE_ELF] (L): Define with .L##name form. * sysdeps/unix/sysv/linux/x86_64/sysdep.h (L): Don't define it here. * sysdeps/generic/dl-lookupcfg.h [USE_TLS] (DL_LOOKUP_RETURNS_MAP): Define it, because _dl_sym presumes it (for any platform). * sysdeps/x86_64/dl-tls.h: New file. * sysdeps/x86_64/dl-machine.h (elf_machine_rela): Add a cast. * sysdeps/x86_64/elf/configure.in: New file. * sysdeps/x86_64/elf/configure: New generated file.
36 lines
961 B
Plaintext
36 lines
961 B
Plaintext
sinclude(./aclocal.m4)dnl Autoconf lossage
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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/x86_64/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 linker.
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AC_CACHE_CHECK(for x86-64 TLS support, libc_cv_x86_64_tls, [dnl
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cat > conftest.s <<\EOF
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.section ".tdata", "awT", @progbits
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.globl foo
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foo: .quad 1
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.section ".tbss", "awT", @nobits
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.globl bar
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bar: .skip 8
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.text
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baz: leaq bar@TLSLD(%rip), %rdi
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leaq bar@DTPOFF(%rax), %rcx
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addq foo@GOTTPOFF(%rip), %rax
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movq $bar@TPOFF, %rdx
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EOF
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dnl
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if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
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libc_cv_x86_64_tls=yes
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else
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libc_cv_x86_64_tls=no
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fi
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rm -f conftest*])
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if test $libc_cv_x86_64_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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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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