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92b3138b83
Updated dependencies: * GMP 6.2.1 * ISL 0.24 * MPL 1.2.1 * MPFR 4.1.0 The dependencies were pulled in by running the ./contrib/download_prerequisites script and then manually removing the symbolic links and archives, and renaming the directories (i.e mv isl-0.24 to isl)
80 lines
2.4 KiB
ArmAsm
80 lines
2.4 KiB
ArmAsm
/* IBM Z support code for TLS offsets.
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Copyright (C) 2020-2023 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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/* __tls_get_offset expects the GOT pointer in %r12 and adds
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it to its argument in %r2. In order to get the offset of
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ti, we load it into %r2, subtract the current %r12 from %r2
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so the addition will result in a nop (%r2 - %r12 + %r12).
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Note: This file is shared between systemz and s390 as the
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same file is used in multilib case for s390x and s390. */
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#include "../common/threadasm.S"
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.text
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.globl CSYM(__ibmz_get_tls_offset)
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.type CSYM(__ibmz_get_tls_offset), @function
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.align 8
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CSYM(__ibmz_get_tls_offset):
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.cfi_startproc
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#ifdef __s390x__
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.machinemode zarch
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stmg %r14,%r15,112(%r15)
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.cfi_offset 14, -48
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.cfi_offset 15, -40
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aghi %r15,-160
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.cfi_def_cfa_offset 320
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sgr %r2,%r12
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brasl %r14,__tls_get_offset@PLT
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lg %r4,272(%r15)
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lmg %r14,%r15,272(%r15)
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.cfi_restore 15
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.cfi_restore 14
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.cfi_def_cfa_offset 160
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br %r4
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#else
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.machinemode esa
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stm %r12,%r15,48(%r15)
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.cfi_offset 12, -48
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.cfi_offset 13, -44
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.cfi_offset 14, -40
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.cfi_offset 15, -36
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ahi %r15,-96
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.cfi_def_cfa_offset 192
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larl %r12,_GLOBAL_OFFSET_TABLE_
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sr %r2,%r12
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brasl %r14,__tls_get_offset@PLT
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l %r4,152(%r15)
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lm %r12,%r15,144(%r15)
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.cfi_restore 15
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.cfi_restore 14
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.cfi_restore 13
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.cfi_restore 12
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.cfi_def_cfa_offset 96
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br %r4
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#endif
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.cfi_endproc
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.size __ibmz_get_tls_offset, .-__ibmz_get_tls_offset
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