900b28f9f6
with flags bitfield and set BI_CAN_EXEC_DYN flag for all brands that usually allow executing elf dynamic binaries (aka shared libraries). When it is requested to execute ET_DYN elf image check if this flag is on after we know the elf brand allowing execution if so. PR: kern/87615 Submitted by: Marcin Koziej <creep@desk.pl>
89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/*-
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* Copyright (c) 1995-1996 Søren Schmidt
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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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* in this position and unchanged.
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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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_IMGACT_ELF_H_
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#define _SYS_IMGACT_ELF_H_
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#include <machine/elf.h>
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#ifdef _KERNEL
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#define AUXARGS_ENTRY(pos, id, val) {suword(pos++, id); suword(pos++, val);}
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struct thread;
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/*
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* Structure used to pass infomation from the loader to the
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* stack fixup routine.
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*/
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typedef struct {
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Elf_Ssize execfd;
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Elf_Size phdr;
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Elf_Size phent;
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Elf_Size phnum;
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Elf_Size pagesz;
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Elf_Size base;
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Elf_Size flags;
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Elf_Size entry;
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Elf_Size trace;
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} __ElfN(Auxargs);
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typedef struct {
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int brand;
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int machine;
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const char *compat_3_brand; /* pre Binutils 2.10 method (FBSD 3) */
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const char *emul_path;
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const char *interp_path;
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struct sysentvec *sysvec;
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const char *interp_newpath;
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int flags;
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#define BI_CAN_EXEC_DYN 0x0001
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} __ElfN(Brandinfo);
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__ElfType(Auxargs);
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__ElfType(Brandinfo);
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#define MAX_BRANDS 8
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int __elfN(brand_inuse)(Elf_Brandinfo *entry);
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int __elfN(insert_brand_entry)(Elf_Brandinfo *entry);
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int __elfN(remove_brand_entry)(Elf_Brandinfo *entry);
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int __elfN(freebsd_fixup)(register_t **, struct image_params *);
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int __elfN(coredump)(struct thread *, struct vnode *, off_t);
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/* Machine specific function to dump per-thread information. */
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void __elfN(dump_thread)(struct thread *, void *, size_t *);
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extern int __elfN(fallback_brand);
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#endif /* _KERNEL */
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#endif /* !_SYS_IMGACT_ELF_H_ */
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