kc3-lang/gnulib/lib/vma-prot.h

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• Hash : 7b089321
  Author :
  Date : 2025-01-01T09:24:36
  

  maint: run 'make update-copyright'
  

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• lib/vma-prot.h

• /* Determine the protection of a virtual memory area.
     Copyright (C) 2024-2025 Free Software Foundation, Inc.
  
     This file is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published
     by the Free Software Foundation; either version 2 of the License,
     or (at your option) any later version.
  
     This file is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  
  /* Written by Bruno Haible <bruno@clisp.org>, 2024.  */
  
  #ifndef _VMA_PROT_H
  #define _VMA_PROT_H
  
  /* Get size_t.  */
  #include <stddef.h>
  
  /* Get VMA_PROT_READ, VMA_PROT_WRITE, VMA_PROT_EXECUTE.  */
  #include "vma-iter.h"
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  
  /* Returns the declared permissions available on the memory area that
     starts at START and is SIZE bytes long, as a combination of the bit masks
     VMA_PROT_READ, VMA_PROT_WRITE, VMA_PROT_EXECUTE.
     Note: The effective permissions may be larger.  For example, some hardware
     allows execute permission anywhere where read permission is present.
     Returns -1 if it cannot be determined.
  
     Note: This function is expensive.  If possible, an application should find
     faster alternatives for memory areas that it has allocated itself, such as
     through malloc(), mmap(), or shmat().  */
  extern int get_vma_prot (void *start, size_t size);
  
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* _VMA_PROT_H */
  

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