57 lines
1.7 KiB
ArmAsm
57 lines
1.7 KiB
ArmAsm
/* Copyright (C) 2012-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C 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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The GNU C 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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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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/* We do not want .eh_frame info so that __makecontext_ret stops unwinding
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if backtrace was called within a context created by makecontext. (There
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is also no .eh_frame info for _start or thread_start.) */
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#undef cfi_startproc
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#define cfi_startproc
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#undef cfi_endproc
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#define cfi_endproc
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ENTRY(__makecontext_ret)
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basr %r14,%r7
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ltr %r8,%r8 /* Check whether uc_link is 0. */
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jz 1f
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lr %r2,%r8
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br %r9
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1: lhi %r2,0 /* EXIT return value. */
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basr %r13,0
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2:
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#ifdef PIC
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l %r12,4f-2b(%r13)
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la %r12,0(%r12,%r13) /* GOT pointer in r12 after this. */
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l %r1,3f-2b(%r13)
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bas %r14,0(%r1,%r12)
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.align 4
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3:
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.long HIDDEN_JUMPTARGET (exit)@GOTOFF
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4:
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.long _GLOBAL_OFFSET_TABLE_-2b
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#else
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l %r1,3f-2b(%r13)
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basr %r14,%r1
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.align 4
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3:
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.long HIDDEN_JUMPTARGET (exit)
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#endif
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.align 2
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j .+2 /* Trap if exit returns for some reason. */
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END(__makecontext_ret)
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