Blame sysdeps/microblaze/sysdep.h

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/* Copyright (C) 1997-2018 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 License as
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   published by the Free Software Foundation; either version 2.1 of the
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   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 <sysdeps/generic/sysdep.h>
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#ifdef  __ASSEMBLER__
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/* Syntactic details of assembler.  */
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# define ALIGNARG(log2) log2
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# define ASM_SIZE_DIRECTIVE(name) .size name,.-name
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/* Define an entry point visible from C.  */
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# define ENTRY(name)                          \
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  .globl C_SYMBOL_NAME(name);                 \
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  .type C_SYMBOL_NAME(name),@function;        \
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  .align ALIGNARG(2);                         \
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  C_LABEL(name)                               \
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  CALL_MCOUNT
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# undef END
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# define END(name) ASM_SIZE_DIRECTIVE(name)
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/* If compiled for profiling, call `_mcount' at the start of each function.  */
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# ifdef  PROF
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/* The mcount code relies on a normal frame pointer being on the stack
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   to locate our caller, so push one just for its benefit.  */
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#  define CALL_MCOUNT                         \
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   addik r1,r1,-4;                            \
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   swi r15,r1,0;                              \
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   brlid r15,JUMPTARGET(mcount);              \
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   nop;                                       \
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   lwi r15,r1,0;                              \
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   addik r1,r1,4;
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# else
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#  define CALL_MCOUNT        /* Do nothing.  */
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# endif
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/* Since C identifiers are not normally prefixed with an underscore
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   on this system, the asm identifier `syscall_error' intrudes on the
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   C name space.  Make sure we use an innocuous name.  */
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# define syscall_error   __syscall_error
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# define mcount      _mcount
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# define PSEUDO(name, syscall_name, args)     \
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  .globl syscall_error;                       \
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  ENTRY (name)                                \
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    DO_CALL (syscall_name, args);
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# define ret                                  \
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  rtsd r15,8; nop;
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# undef PSEUDO_END
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# define PSEUDO_END(name)                     \
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  END (name)
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# undef JUMPTARGET
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# ifdef PIC
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#  define JUMPTARGET(name)   name##@PLTPC
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# else
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#  define JUMPTARGET(name)   name
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# endif
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/* Local label name for asm code.  */
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# ifndef L
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#  define L(name) $L##name
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# endif
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# endif  /* __ASSEMBLER__  */