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| author | Ulrich Drepper <drepper@redhat.com> | 2006-07-10 21:59:43 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2006-07-10 21:59:43 +0000 |
| commit | 871b91589bf4f6dfe19d5987b0a05bd7cf936ecc (patch) | |
| tree | e50affec0ae060520fbfac19071ee0bfc4348f31 /configure.in | |
| parent | f3be81a91cdd1b42c47e4d8501dd96d0f1666520 (diff) | |
| download | glibc-871b91589bf4f6dfe19d5987b0a05bd7cf936ecc.tar.gz | |
* elf/dl-lookup.c (dl_new_hash): New functions.cvs/fedora-glibc-20060710T2206
(_dl_lookup_symbol_x): Rename hash to old_hash and don't compute
value here. Compute new-style hash value. Pass new hash value
and reference to variable with the old value to do_lookup_x.
(_dl_setup_hash): If DT_GNU_HASH is defined, use it and not
old-style hash table.
(_dl_debug_bindings): Pass new hash value and reference to variable
with the old value to do_lookup_x.
* elf/do-lookup.h (do_lookup_x): Accept additional parameter with
new-style hash value and change old-style hash value parameter to
be a reference. Reoganize functions to determine whether
new-style hash table is available. Only fall back on old-style
table. If old-style hash value is needed, compute it here.
* elf/dynamic-link.h (elf_get_dynamic_info): Relocate DT_GNU_HASH
entry.
* elf/elf.h: Define SHT_GNU_HASH, DT_GNU_HASH, DT_TLSDEC_PLT,
DT_TLSDEC_GOT. Adjust DT_ADDRNUM.
* include/link.h (struct link_map): Add l_gnu_bitmask_idxbits,
l_gnu_shift, l_gnu_bitmask, l_gnu_buckets and l_gnu_chain_zero.
* Makeconfig: If linker supports --hash-style option add it to all
linker command lines to build DSOs.
* config.make.in: Define have-hash-style.
* configure.in: Test whether linker supports --hash-style option.
* elf/dl-misc.c (_dl_name_match_p): Make MAP parameter const.
* sysdeps/generic/ldsodefs.h: Adjust prototype.
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 79fa32ec2b..924b0406cb 100644 --- a/configure.in +++ b/configure.in @@ -1589,6 +1589,22 @@ EOF rm -f conftest*]) AC_SUBST(libc_cv_fpie) + + AC_CACHE_CHECK(for --hash-style option, + libc_cv_hashstyle, [dnl + cat > conftest.c <<EOF +int _start (void) { return 42; } +EOF + if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS + -fPIC -shared -o conftest.so conftest.c + -Wl,--hash-style=both -nostdlib 1>&AS_MESSAGE_LOG_FD]) + then + libc_cv_hashstyle=yes + else + libc_cv_hashstyle=no + fi + rm -f conftest*]) + AC_SUBST(libc_cv_hashstyle) fi AC_CACHE_CHECK(for -fno-toplevel-reorder, libc_cv_fno_toplevel_reorder, [dnl |