365201465e
descriptors in order to relocate RTLD itself. To allocate memory, we need the pagesizes array initialized, but that happens after RTLD is relocated. This ordering is important for amd64, but it's opposite of what ia64 needs. Handle this conflict with the define called RTLD_INIT_PAGESIZES_EARLY. When defined, obtain the page sizes before relocating rtld, otherwise do it after.
75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/*-
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* Copyright (c) 1999, 2000 John D. Polstra.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef RTLD_MACHDEP_H
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#define RTLD_MACHDEP_H 1
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#include <sys/types.h>
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#include <machine/atomic.h>
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/*
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* Macros for cracking ia64 function pointers.
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*/
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struct fptr {
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Elf_Addr target;
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Elf_Addr gp;
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};
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#define FPTR_TARGET(f) (((struct fptr *) (f))->target)
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#define FPTR_GP(f) (((struct fptr *) (f))->gp)
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/* Return the address of the .dynamic section in the dynamic linker. */
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#define rtld_dynamic(obj) (&_DYNAMIC)
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struct Struct_Obj_Entry;
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Elf_Addr reloc_jmpslot(Elf_Addr *, Elf_Addr, const struct Struct_Obj_Entry *,
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const struct Struct_Obj_Entry *, const Elf_Rel *);
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void *make_function_pointer(const Elf_Sym *, const struct Struct_Obj_Entry *);
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void call_initfini_pointer(const struct Struct_Obj_Entry *, Elf_Addr);
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void call_init_pointer(const struct Struct_Obj_Entry *, Elf_Addr);
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#define TLS_TCB_SIZE 16
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#define round(size, align) \
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(((size) + (align) - 1) & ~((align) - 1))
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#define calculate_first_tls_offset(size, align) \
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round(TLS_TCB_SIZE, align)
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#define calculate_tls_offset(prev_offset, prev_size, size, align) \
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round(prev_offset + prev_size, align)
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#define calculate_tls_end(off, size) ((off) + (size))
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extern void *__tls_get_addr(unsigned long module, unsigned long offset);
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#define RTLD_DEFAULT_STACK_PF_EXEC 0
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#define RTLD_DEFAULT_STACK_EXEC 0
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#define RTLD_INIT_PAGESIZES_EARLY 1
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#endif
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