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Diffstat (limited to 'gnu/egcs/libiberty/getpagesize.c')
-rw-r--r-- | gnu/egcs/libiberty/getpagesize.c | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/gnu/egcs/libiberty/getpagesize.c b/gnu/egcs/libiberty/getpagesize.c deleted file mode 100644 index 564d6c02312..00000000000 --- a/gnu/egcs/libiberty/getpagesize.c +++ /dev/null @@ -1,96 +0,0 @@ -/* Emulation of getpagesize() for systems that need it. */ - -/* - -NAME - - getpagesize -- return the number of bytes in page of memory - -SYNOPSIS - - int getpagesize (void) - -DESCRIPTION - - Returns the number of bytes in a page of memory. This is the - granularity of many of the system memory management routines. - No guarantee is made as to whether or not it is the same as the - basic memory management hardware page size. - -BUGS - - Is intended as a reasonable replacement for systems where this - is not provided as a system call. The value of 4096 may or may - not be correct for the systems where it is returned as the default - value. - -*/ - -#ifndef VMS - -#include "config.h" - -#include <sys/types.h> -#ifdef HAVE_SYS_PARAM_H -#include <sys/param.h> -#endif - -#undef GNU_OUR_PAGESIZE -#if defined (HAVE_SYSCONF) && defined (HAVE_UNISTD_H) -#include <unistd.h> -#ifdef _SC_PAGESIZE -#define GNU_OUR_PAGESIZE sysconf(_SC_PAGESIZE) -#endif -#endif - -#ifndef GNU_OUR_PAGESIZE -# ifdef PAGESIZE -# define GNU_OUR_PAGESIZE PAGESIZE -# else /* no PAGESIZE */ -# ifdef EXEC_PAGESIZE -# define GNU_OUR_PAGESIZE EXEC_PAGESIZE -# else /* no EXEC_PAGESIZE */ -# ifdef NBPG -# define GNU_OUR_PAGESIZE (NBPG * CLSIZE) -# ifndef CLSIZE -# define CLSIZE 1 -# endif /* CLSIZE */ -# else /* no NBPG */ -# ifdef NBPC -# define GNU_OUR_PAGESIZE NBPC -# else /* no NBPC */ -# define GNU_OUR_PAGESIZE 4096 /* Just punt and use reasonable value */ -# endif /* NBPC */ -# endif /* NBPG */ -# endif /* EXEC_PAGESIZE */ -# endif /* PAGESIZE */ -#endif /* GNU_OUR_PAGESIZE */ - -int -getpagesize () -{ - return (GNU_OUR_PAGESIZE); -} - -#else /* VMS */ - -#if 0 /* older distributions of gcc-vms are missing <syidef.h> */ -#include <syidef.h> -#endif -#ifndef SYI$_PAGE_SIZE /* VMS V5.4 and earlier didn't have this yet */ -#define SYI$_PAGE_SIZE 4452 -#endif -extern unsigned long lib$getsyi(const unsigned short *,...); - -int getpagesize () -{ - long pagsiz = 0L; - unsigned short itmcod = SYI$_PAGE_SIZE; - - (void) lib$getsyi (&itmcod, (void *) &pagsiz); - if (pagsiz == 0L) - pagsiz = 512L; /* VAX default */ - return (int) pagsiz; -} - -#endif /* VMS */ |