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9288c92d00
Add <dl-debug.h> to setup debugging entry in PT_DYNAMIC segment to support DT_DEBUG, DT_MIPS_RLD_MAP_REL and DT_MIPS_RLD_MAP. Tested on x86-64, x32 and i686 as well as with build-many-glibcs.py.
42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
/* Debugging support. MIPS version.
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Copyright (C) 2022 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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#ifndef _DL_DEBUG_H
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#define _DL_DEBUG_H
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/* If there is a DT_MIPS_RLD_MAP_REL or DT_MIPS_RLD_MAP entry in the
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dynamic section, fill in the debug map pointer with the run-time
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address of the r_debug structure. */
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static inline void
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__attribute ((always_inline))
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elf_setup_debug_entry (struct link_map *l, struct r_debug *r)
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{
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if (l->l_info[DT_MIPS (RLD_MAP_REL)] != NULL)
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{
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char *ptr = (char *) l->l_info[DT_MIPS (RLD_MAP_REL)];
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ptr += l->l_info[DT_MIPS (RLD_MAP_REL)]->d_un.d_val;
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*(ElfW(Addr) *) ptr = (ElfW(Addr)) r;
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}
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else if (l->l_info[DT_MIPS (RLD_MAP)] != NULL)
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*(ElfW(Addr) *) (l->l_info[DT_MIPS (RLD_MAP)]->d_un.d_ptr)
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= (ElfW(Addr)) r;
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}
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#endif /* _DL_DEBUG_H */
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