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2003-01-27 Martin Schwidefsky <schwidefsky@de.ibm.com> * elf/elf.h: Add new s390 relocs. * elf/tls-macros.h: Add s390 versions. * sysdeps/s390/Versions [GLIBC_2.3] (ld): Export __tls_get_offset. * sysdeps/s390/dl-tls.h: New file. * sysdeps/s390/libc-tls.c: New file. * sysdeps/s390/s390-32/dl-machine.h (elf_machine_type_class): Add TLS relocs for class PLT. (elf_machine_rela): Handle TLS relocs. * sysdeps/s390/s390-64/dl-machine.h: Likewise. * sysdeps/s390/s390-32/elf/configure.in: Add TLS check. * sysdeps/s390/s390-64/elf/configure.in: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/clone.S: Add support for CLONE_CHILD_*TID flags. * sysdeps/unix/sysv/linux/s390/s390-64/clone.S: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/mmap.S: Use branch with 32 bit offset. * sysdeps/unix/sysv/linux/s390/s390-64/socket.S: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscall.S: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S (__syscall_error): Support USE___THREAD. Define RTLD_PRIVATE_ERRNO variant. * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.S (__syscall_error): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h: (SYSCALL_ERROR_LABEL): Move define next to SYSCALL_ERROR_HANDLER. (SYSCALL_ERROR_HANDLER): Add USE___THREAD and RTLD_PRIVATE_ERRNO variants. * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h: (SYSCALL_ERROR_LABEL): Move define next to SYSCALL_ERROR_HANDLER. Use direct branch to syscall_error for !PIC and PIC && !_LIBC_REENTRANT. (SYSCALL_ERROR_HANDLER): Add USE___THREAD and RTLD_PRIVATE_ERRNO variants.
38 lines
993 B
Plaintext
38 lines
993 B
Plaintext
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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# Local configure fragment for sysdeps/s390/elf.
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if test "$usetls" != no; then
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# Check for support of thread-local storage handling in assembler and
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# linker.
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AC_CACHE_CHECK(for s390 TLS support, libc_cv_390_tls, [dnl
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cat > conftest.S <<\EOF
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.section ".tdata", "awT", @progbits
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foo: .long 25
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.text
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.quad foo@TLSGD
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.quad foo@TLSLDM
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.quad foo@DTPOFF
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.quad foo@NTPOFF
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.quad foo@GOTNTPOFF
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.quad foo@INDNTPOFF
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lg %r1,foo@GOTNTPOFF(%r12)
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lg %r1,0(%r1):tls_load:foo
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brasl %r14,__tls_get_offset@plt:tls_gdcall:foo
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brasl %r14,__tls_get_offset@plt:tls_ldcall:foo
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EOF
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dnl
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if AC_TRY_COMMAND(${CC-cc} -S $CFLAGS conftest.S 1>&AS_MESSAGE_LOG_FD); then
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libc_cv_390_tls=yes
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else
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libc_cv_390_tls=no
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fi
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rm -f conftest*])
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if test $libc_cv_390_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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