f24894771e
This fixes a GDB internal error that may occur when the inferior has no valid stack pointer in r15. gdb/testsuite/ChangeLog: * gdb.arch/s390-stackless.S: New. * gdb.arch/s390-stackless.exp: New. gdb/ChangeLog: * s390-linux-tdep.c (s390_backchain_frame_unwind_cache): Avoid exception when attempting to access the inferior's backchain.
33 lines
1 KiB
ArmAsm
33 lines
1 KiB
ArmAsm
/* Copyright 2015-2016 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(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. If not, see <http://www.gnu.org/licenses/>. */
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.text
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.align 8
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.globl main
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.type main, @function
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/* Ensure an invalid stack pointer and link register. Don't
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use zero, since that may be handled specially. */
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main: la %r15,3(0,0)
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la %r14,1(0,0)
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j 1f
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.size main, .-main
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/* Outside any function. */
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.byte 0,1
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1: st %r15,0(%r15)
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br %r14
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