John Reiser
9e8de4abe5
The stub occupies the same region that execve() would create for the original progam. The stub copies everything to a new area, erases the original region, replaces it with the de-compressed program, and erases the copy of itself via the escape hatch. The copy is inexpensive via mmap() of /proc/self/exe. modified: stub/src/i386-linux.elf-entry.S modified: stub/src/i386-linux.elf-fold.S modified: stub/src/i386-linux.elf-main.c modified: p_lx_elf.cpp modified: p_lx_elf.h modified: p_lx_interp.cpp modified: p_lx_interp.h modified: p_lx_sh.cpp modified: p_lx_sh.h modified: p_mach.cpp modified: p_mach.h modified: p_unix.cpp modified: p_unix.h modified: p_vmlinx.cpp plus .h, .map, .dump
65 lines
2.2 KiB
C++
65 lines
2.2 KiB
C++
/* p_lx_interp.h --
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This file is part of the UPX executable compressor.
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Copyright (C) 1996-2017 Markus Franz Xaver Johannes Oberhumer
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Copyright (C) 1996-2017 Laszlo Molnar
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Copyright (C) 2000-2017 John F. Reiser
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All Rights Reserved.
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UPX and the UCL library are free software; you can redistribute them
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and/or modify them under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING.
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If not, write to the Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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Markus F.X.J. Oberhumer Laszlo Molnar
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<markus@oberhumer.com> <ezerotven+github@gmail.com>
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John F. Reiser
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<jreiser@users.sourceforge.net>
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*/
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#ifndef __UPX_P_LX_INTERP_H //{
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#define __UPX_P_LX_INTERP_H 1
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/*************************************************************************
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// linux/interp386
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**************************************************************************/
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class PackLinuxElf32x86interp : public PackLinuxElf32x86
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{
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typedef PackLinuxElf32x86 super;
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public:
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PackLinuxElf32x86interp(InputFile *f);
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virtual ~PackLinuxElf32x86interp();
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virtual int getVersion() const { return 13; }
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virtual int getFormat() const { return UPX_F_LINUX_ELFI_i386; }
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virtual const char *getName() const { return "linux/elfi386"; }
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virtual const char *getFullName(const options_t *) const { return "i386-linux.elf.interp"; }
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virtual bool canPack();
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virtual void unpack(OutputFile *fo);
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protected:
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virtual void pack1(OutputFile *, Filter &); // generate executable header
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virtual int pack2(OutputFile *, Filter &); // append compressed data
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virtual off_t pack3(OutputFile *, Filter &); // build loader
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};
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#endif /*} already included */
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/* vim:set ts=4 sw=4 et: */
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