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101 lines
2.3 KiB
Plaintext
101 lines
2.3 KiB
Plaintext
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divert(-1)
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dnl Copyright 2011-2013 Free Software Foundation, Inc.
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dnl This file is part of the GNU MP Library.
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dnl
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dnl The GNU MP Library is free software; you can redistribute it and/or modify
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dnl it under the terms of either:
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dnl
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dnl * the GNU Lesser General Public License as published by the Free
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dnl Software Foundation; either version 3 of the License, or (at your
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dnl option) any later version.
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dnl
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dnl or
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dnl
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dnl * the GNU General Public License as published by the Free Software
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dnl Foundation; either version 2 of the License, or (at your option) any
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dnl later version.
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dnl
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dnl or both in parallel, as here.
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dnl
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dnl The GNU MP Library is distributed in the hope that it will be useful, but
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dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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dnl for more details.
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dnl
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dnl You should have received copies of the GNU General Public License and the
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dnl GNU Lesser General Public License along with the GNU MP Library. If not,
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dnl see https://www.gnu.org/licenses/.
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define(`HOST_DOS64')
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dnl On DOS64 we always generate position-independent-code
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dnl
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define(`PIC')
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define(`LEA',`
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lea $1(%rip), $2
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')
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dnl Usage: CALL(funcname)
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dnl
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dnl Simply override the definition in x86_64-defs.m4.
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define(`CALL',`call GSYM_PREFIX`'$1')
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dnl Usage: JUMPTABSECT
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define(`JUMPTABSECT', `RODATA')
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dnl Usage: JMPENT(targlabel,tablabel)
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define(`JMPENT', `.long $1-$2')
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dnl Usage: FUNC_ENTRY(nregparmas)
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dnl Usage: FUNC_EXIT()
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dnl FUNC_ENTRY and FUNC_EXIT provide an easy path for adoption of standard
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dnl ABI assembly to the DOS64 ABI.
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define(`FUNC_ENTRY',
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`push %rdi
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push %rsi
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mov %rcx, %rdi
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ifelse(eval($1>=2),1,`dnl
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mov %rdx, %rsi
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ifelse(eval($1>=3),1,`dnl
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mov %r8, %rdx
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ifelse(eval($1>=4),1,`dnl
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mov %r9, %rcx
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')')')')
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define(`FUNC_EXIT',
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`pop %rsi
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pop %rdi')
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dnl Target ABI macros. For DOS64 we override the defaults.
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define(`IFDOS', `$1')
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define(`IFSTD', `')
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define(`IFELF', `')
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dnl Usage: PROTECT(symbol)
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dnl
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dnl Used for private GMP symbols that should never be overridden by users.
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dnl This can save reloc entries and improve shlib sharing as well as
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dnl application startup times
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define(`PROTECT', `')
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divert`'dnl
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