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466c1ea15f
Consolidate all hooks structures into a single one. There are no static dlopen ABI concerns because glibc 2.34 already comes with substantial ABI-incompatible changes in this area. (Static dlopen requires the exact same dynamic glibc version that was used for static linking.) The new approach uses a pointer to the hooks structure into _rtld_global_ro and initalizes it in __rtld_static_init. This avoids a back-and-forth with various callback functions. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
/* Locate the shared object symbol nearest a given address.
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Copyright (C) 1996-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <dlfcn.h>
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#include <ldsodefs.h>
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#include <shlib-compat.h>
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int
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__dladdr (const void *address, Dl_info *info)
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{
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#ifdef SHARED
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if (!rtld_active ())
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return GLRO (dl_dlfcn_hook)->dladdr (address, info);
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#endif
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return _dl_addr (address, info, NULL, NULL);
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}
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versioned_symbol (libc, __dladdr, dladdr, GLIBC_2_34);
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#if OTHER_SHLIB_COMPAT (libdl, GLIBC_2_0, GLIBC_2_34)
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compat_symbol (libdl, __dladdr, dladdr, GLIBC_2_0);
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#endif
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