Mario Limonciello
d1aaae2539
In order for pre-commit to be useful, everything needs to meet a common baseline. Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
65 lines
2.4 KiB
ArmAsm
65 lines
2.4 KiB
ArmAsm
/*
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* See the dyninst/COPYRIGHT file for copyright information.
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*
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* We provide the Paradyn Tools (below described as "Paradyn")
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* on an AS IS basis, and do not warrant its validity or performance.
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* We reserve the right to update, modify, or discontinue this
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* software at any time. We shall have no obligation to supply such
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* updates or modifications or any other form of support to you.
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*
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* By your use of Paradyn, you understand and agree that we (or any
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* other person or entity with proprietary rights in Paradyn) are
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* under no obligation to provide either maintenance services,
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* update services, notices of latent defects, or correction of
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* defects for Paradyn.
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*
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* This 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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*
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* This 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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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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DYNINSTsigill:
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DYNINSTsigill executes an illegal instruction, causing SIGILL to be
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sent to the calling process. It is only needed for
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detach-on-the-fly, where detached mutatees stop to wait for the
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mutator or paradynd to reattach by sending themselves SIGILL.
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A detached mutatee that stops itself with SIGSTOP will not be
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noticed by the mutator or paradynd. It must send SIGILL to be
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noticed.
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There are two ways to send SIGILL to yourself: call kill() or
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execute an illegal instruction.
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We chose to use illegal instructions. The SIGILL handler has a
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simpler implementation if SIGILL is caused by an illegal
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instruction. We do not use kill() to send SIGILL.
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The test suite calls this function through the dynamic loader to
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avoid duplication of code in the test suite and additional makefile
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complexity.
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3000 bytes of source code for 3 bytes of object code.
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*/
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.text
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.globl DYNINSTsigill
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DYNINSTsigill:
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ud2
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ret
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.section .note.GNU-stack,"",@progbits
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