mirror of git://sourceware.org/git/glibc.git
37 lines
1.4 KiB
ArmAsm
37 lines
1.4 KiB
ArmAsm
/* Copyright (C) 2005-2014 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 <tcb-offsets.h>
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/* Save the PID value. */
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#define SAVE_PID \
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GET_TLS (r2); \
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NEGOFF_ADJ_BASE2 (r2, r0, PID_OFFSET); /* Save the TLS addr in r2. */ \
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ldr r3, NEGOFF_OFF1 (r2, PID_OFFSET); /* Load the saved PID. */ \
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rsbs r0, r3, #0; /* Negate it. */ \
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it eq; \
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moveq r0, #0x80000000; /* Use 0x80000000 if it was 0. */ \
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str r0, NEGOFF_OFF1 (r2, PID_OFFSET); /* Store the temp PID. */
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/* Restore the old PID value in the parent. */
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#define RESTORE_PID \
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cmp r0, #0; /* If we are the parent... */ \
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it ne; \
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strne r3, NEGOFF_OFF1 (r2, PID_OFFSET); /* restore the saved PID. */
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#include "../vfork.S"
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