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Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.2/] [libiberty/] [physmem.c] - Blame information for rev 501

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/* Calculate the size of physical memory.
   Copyright 2000, 2001, 2003, 2004, 2005 Free Software Foundation, Inc.
 
   This program 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, or (at your option)
   any later version.
 
   This program 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, write to the Free Software Foundation,
   Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
 
/* Written by Paul Eggert.  */
 
#if HAVE_CONFIG_H
# include <config.h>
#endif
 
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
 
#if HAVE_SYS_PSTAT_H
# include <sys/pstat.h>
#endif
 
#if HAVE_SYS_SYSMP_H
# include <sys/sysmp.h>
#endif
 
#if HAVE_SYS_SYSINFO_H && HAVE_MACHINE_HAL_SYSINFO_H
# include <sys/sysinfo.h>
# include <machine/hal_sysinfo.h>
#endif
 
#if HAVE_SYS_TABLE_H
# include <sys/table.h>
#endif
 
#include <sys/types.h>
 
#if HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
 
#if HAVE_SYS_SYSCTL_H
# include <sys/sysctl.h>
#endif
 
#if HAVE_SYS_SYSTEMCFG_H
# include <sys/systemcfg.h>
#endif
 
#ifdef _WIN32
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
/*  MEMORYSTATUSEX is missing from older windows headers, so define
    a local replacement.  */
typedef struct
{
  DWORD dwLength;
  DWORD dwMemoryLoad;
  DWORDLONG ullTotalPhys;
  DWORDLONG ullAvailPhys;
  DWORDLONG ullTotalPageFile;
  DWORDLONG ullAvailPageFile;
  DWORDLONG ullTotalVirtual;
  DWORDLONG ullAvailVirtual;
  DWORDLONG ullAvailExtendedVirtual;
} lMEMORYSTATUSEX;
typedef WINBOOL (WINAPI *PFN_MS_EX) (lMEMORYSTATUSEX*);
#endif
 
#include "libiberty.h"
 
/* Return the total amount of physical memory.  */
double
physmem_total (void)
{
#if defined _SC_PHYS_PAGES && defined _SC_PAGESIZE
  { /* This works on linux-gnu, solaris2 and cygwin.  */
    double pages = sysconf (_SC_PHYS_PAGES);
    double pagesize = sysconf (_SC_PAGESIZE);
    if (0 <= pages && 0 <= pagesize)
      return pages * pagesize;
  }
#endif
 
#if HAVE_PSTAT_GETSTATIC
  { /* This works on hpux11.  */
    struct pst_static pss;
    if (0 <= pstat_getstatic (&pss, sizeof pss, 1, 0))
      {
        double pages = pss.physical_memory;
        double pagesize = pss.page_size;
        if (0 <= pages && 0 <= pagesize)
          return pages * pagesize;
      }
  }
#endif
 
#if HAVE_SYSMP && defined MP_SAGET && defined MPSA_RMINFO && defined _SC_PAGESIZE
  { /* This works on irix6. */
    struct rminfo realmem;
    if (sysmp (MP_SAGET, MPSA_RMINFO, &realmem, sizeof realmem) == 0)
      {
        double pagesize = sysconf (_SC_PAGESIZE);
        double pages = realmem.physmem;
        if (0 <= pages && 0 <= pagesize)
          return pages * pagesize;
      }
  }
#endif
 
#if HAVE_GETSYSINFO && defined GSI_PHYSMEM
  { /* This works on Tru64 UNIX V4/5.  */
    int physmem;
 
    if (getsysinfo (GSI_PHYSMEM, (caddr_t) &physmem, sizeof (physmem),
                    NULL, NULL, NULL) == 1)
      {
        double kbytes = physmem;
 
        if (0 <= kbytes)
          return kbytes * 1024.0;
      }
  }
#endif
 
#if HAVE_SYSCTL && defined HW_PHYSMEM
  { /* This works on *bsd and darwin.  */
    unsigned int physmem;
    size_t len = sizeof physmem;
    static int mib[2] = { CTL_HW, HW_PHYSMEM };
 
    if (sysctl (mib, ARRAY_SIZE (mib), &physmem, &len, NULL, 0) == 0
        && len == sizeof (physmem))
      return (double) physmem;
  }
#endif
 
#if HAVE__SYSTEM_CONFIGURATION
  /* This works on AIX 4.3.3+.  */
  return _system_configuration.physmem;
#endif
 
#if defined _WIN32
  { /* this works on windows */
    PFN_MS_EX pfnex;
    HMODULE h = GetModuleHandle ("kernel32.dll");
 
    if (!h)
      return 0.0;
 
    /*  Use GlobalMemoryStatusEx if available.  */
    if ((pfnex = (PFN_MS_EX) GetProcAddress (h, "GlobalMemoryStatusEx")))
      {
        lMEMORYSTATUSEX lms_ex;
        lms_ex.dwLength = sizeof lms_ex;
        if (!pfnex (&lms_ex))
          return 0.0;
        return (double) lms_ex.ullTotalPhys;
      }
 
    /*  Fall back to GlobalMemoryStatus which is always available.
        but returns wrong results for physical memory > 4GB.  */
    else
      {
        MEMORYSTATUS ms;
        GlobalMemoryStatus (&ms);
        return (double) ms.dwTotalPhys;
      }
  }
#endif
 
  /* Return 0 if we can't determine the value.  */
  return 0;
}
 
/* Return the amount of physical memory available.  */
double
physmem_available (void)
{
#if defined _SC_AVPHYS_PAGES && defined _SC_PAGESIZE
  { /* This works on linux-gnu, solaris2 and cygwin.  */
    double pages = sysconf (_SC_AVPHYS_PAGES);
    double pagesize = sysconf (_SC_PAGESIZE);
    if (0 <= pages && 0 <= pagesize)
      return pages * pagesize;
  }
#endif
 
#if HAVE_PSTAT_GETSTATIC && HAVE_PSTAT_GETDYNAMIC
  { /* This works on hpux11.  */
    struct pst_static pss;
    struct pst_dynamic psd;
    if (0 <= pstat_getstatic (&pss, sizeof pss, 1, 0)
        && 0 <= pstat_getdynamic (&psd, sizeof psd, 1, 0))
      {
        double pages = psd.psd_free;
        double pagesize = pss.page_size;
        if (0 <= pages && 0 <= pagesize)
          return pages * pagesize;
      }
  }
#endif
 
#if HAVE_SYSMP && defined MP_SAGET && defined MPSA_RMINFO && defined _SC_PAGESIZE
  { /* This works on irix6. */
    struct rminfo realmem;
    if (sysmp (MP_SAGET, MPSA_RMINFO, &realmem, sizeof realmem) == 0)
      {
        double pagesize = sysconf (_SC_PAGESIZE);
        double pages = realmem.availrmem;
        if (0 <= pages && 0 <= pagesize)
          return pages * pagesize;
      }
  }
#endif
 
#if HAVE_TABLE && defined TBL_VMSTATS
  { /* This works on Tru64 UNIX V4/5.  */
    struct tbl_vmstats vmstats;
 
    if (table (TBL_VMSTATS, 0, &vmstats, 1, sizeof (vmstats)) == 1)
      {
        double pages = vmstats.free_count;
        double pagesize = vmstats.pagesize;
 
        if (0 <= pages && 0 <= pagesize)
          return pages * pagesize;
      }
  }
#endif
 
#if HAVE_SYSCTL && defined HW_USERMEM
  { /* This works on *bsd and darwin.  */
    unsigned int usermem;
    size_t len = sizeof usermem;
    static int mib[2] = { CTL_HW, HW_USERMEM };
 
    if (sysctl (mib, ARRAY_SIZE (mib), &usermem, &len, NULL, 0) == 0
        && len == sizeof (usermem))
      return (double) usermem;
  }
#endif
 
#if defined _WIN32
  { /* this works on windows */
    PFN_MS_EX pfnex;
    HMODULE h = GetModuleHandle ("kernel32.dll");
 
    if (!h)
      return 0.0;
 
    /*  Use GlobalMemoryStatusEx if available.  */
    if ((pfnex = (PFN_MS_EX) GetProcAddress (h, "GlobalMemoryStatusEx")))
      {
        lMEMORYSTATUSEX lms_ex;
        lms_ex.dwLength = sizeof lms_ex;
        if (!pfnex (&lms_ex))
          return 0.0;
        return (double) lms_ex.ullAvailPhys;
      }
 
    /*  Fall back to GlobalMemoryStatus which is always available.
        but returns wrong results for physical memory > 4GB  */
    else
      {
        MEMORYSTATUS ms;
        GlobalMemoryStatus (&ms);
        return (double) ms.dwAvailPhys;
      }
  }
#endif
 
  /* Guess 25% of physical memory.  */
  return physmem_total () / 4;
}
 
 
#if DEBUG
 
# include <stdio.h>
# include <stdlib.h>
 
int
main (void)
{
  printf ("%12.f %12.f\n", physmem_total (), physmem_available ());
  exit (0);
}
 
#endif /* DEBUG */
 
/*
Local Variables:
compile-command: "gcc -DDEBUG -DHAVE_CONFIG_H -I.. -g -O -Wall -W physmem.c"
End:
*/

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Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.2/] [libiberty/] [physmem.c] - Blame information for rev 501

Line No.	Rev	Author	Line
1	330	jeremybenn	`/* Calculate the size of physical memory.`
2			`Copyright 2000, 2001, 2003, 2004, 2005 Free Software Foundation, Inc.`
3
4			`This program is free software; you can redistribute it and/or modify`
5			`it under the terms of the GNU General Public License as published by`
6			`the Free Software Foundation; either version 2, or (at your option)`
7			`any later version.`
8
9			`This program is distributed in the hope that it will be useful,`
10			`but WITHOUT ANY WARRANTY; without even the implied warranty of`
11			`MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the`
12			`GNU General Public License for more details.`
13
14			`You should have received a copy of the GNU General Public License`
15			`along with this program; if not, write to the Free Software Foundation,`
16			`Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */`
17
18			`/* Written by Paul Eggert. */`
19
20			`#if HAVE_CONFIG_H`
21			`# include <config.h>`
22			`#endif`
23
24			`#if HAVE_UNISTD_H`
25			`# include <unistd.h>`
26			`#endif`
27
28			`#if HAVE_SYS_PSTAT_H`
29			`# include <sys/pstat.h>`
30			`#endif`
31
32			`#if HAVE_SYS_SYSMP_H`
33			`# include <sys/sysmp.h>`
34			`#endif`
35
36			`#if HAVE_SYS_SYSINFO_H && HAVE_MACHINE_HAL_SYSINFO_H`
37			`# include <sys/sysinfo.h>`
38			`# include <machine/hal_sysinfo.h>`
39			`#endif`
40
41			`#if HAVE_SYS_TABLE_H`
42			`# include <sys/table.h>`
43			`#endif`
44
45			`#include <sys/types.h>`
46
47			`#if HAVE_SYS_PARAM_H`
48			`# include <sys/param.h>`
49			`#endif`
50
51			`#if HAVE_SYS_SYSCTL_H`
52			`# include <sys/sysctl.h>`
53			`#endif`
54
55			`#if HAVE_SYS_SYSTEMCFG_H`
56			`# include <sys/systemcfg.h>`
57			`#endif`
58
59			`#ifdef _WIN32`
60			`# define WIN32_LEAN_AND_MEAN`
61			`# include <windows.h>`
62			`/* MEMORYSTATUSEX is missing from older windows headers, so define`
63			`a local replacement. */`
64			`typedef struct`
65			`{`
66			`DWORD dwLength;`
67			`DWORD dwMemoryLoad;`
68			`DWORDLONG ullTotalPhys;`
69			`DWORDLONG ullAvailPhys;`
70			`DWORDLONG ullTotalPageFile;`
71			`DWORDLONG ullAvailPageFile;`
72			`DWORDLONG ullTotalVirtual;`
73			`DWORDLONG ullAvailVirtual;`
74			`DWORDLONG ullAvailExtendedVirtual;`
75			`} lMEMORYSTATUSEX;`
76			`typedef WINBOOL (WINAPI PFN_MS_EX) (lMEMORYSTATUSEX);`
77			`#endif`
78
79			`#include "libiberty.h"`
80
81			`/* Return the total amount of physical memory. */`
82			`double`
83			`physmem_total (void)`
84			`{`
85			`#if defined _SC_PHYS_PAGES && defined _SC_PAGESIZE`
86			`{ /* This works on linux-gnu, solaris2 and cygwin. */`
87			`double pages = sysconf (_SC_PHYS_PAGES);`
88			`double pagesize = sysconf (_SC_PAGESIZE);`
89			`if (0 <= pages && 0 <= pagesize)`
90			`return pages * pagesize;`
91			`}`
92			`#endif`
93
94			`#if HAVE_PSTAT_GETSTATIC`
95			`{ /* This works on hpux11. */`
96			`struct pst_static pss;`
97			`if (0 <= pstat_getstatic (&pss, sizeof pss, 1, 0))`
98			`{`
99			`double pages = pss.physical_memory;`
100			`double pagesize = pss.page_size;`
101			`if (0 <= pages && 0 <= pagesize)`
102			`return pages * pagesize;`
103			`}`
104			`}`
105			`#endif`
106
107			`#if HAVE_SYSMP && defined MP_SAGET && defined MPSA_RMINFO && defined _SC_PAGESIZE`
108			`{ /* This works on irix6. */`
109			`struct rminfo realmem;`
110			`if (sysmp (MP_SAGET, MPSA_RMINFO, &realmem, sizeof realmem) == 0)`
111			`{`
112			`double pagesize = sysconf (_SC_PAGESIZE);`
113			`double pages = realmem.physmem;`
114			`if (0 <= pages && 0 <= pagesize)`
115			`return pages * pagesize;`
116			`}`
117			`}`
118			`#endif`
119
120			`#if HAVE_GETSYSINFO && defined GSI_PHYSMEM`
121			`{ /* This works on Tru64 UNIX V4/5. */`
122			`int physmem;`
123
124			`if (getsysinfo (GSI_PHYSMEM, (caddr_t) &physmem, sizeof (physmem),`
125			`NULL, NULL, NULL) == 1)`
126			`{`
127			`double kbytes = physmem;`
128
129			`if (0 <= kbytes)`
130			`return kbytes * 1024.0;`
131			`}`
132			`}`
133			`#endif`
134
135			`#if HAVE_SYSCTL && defined HW_PHYSMEM`
136			`{ /* This works on bsd and darwin. /`
137			`unsigned int physmem;`
138			`size_t len = sizeof physmem;`
139			`static int mib[2] = { CTL_HW, HW_PHYSMEM };`
140
141			`if (sysctl (mib, ARRAY_SIZE (mib), &physmem, &len, NULL, 0) == 0`
142			`&& len == sizeof (physmem))`
143			`return (double) physmem;`
144			`}`
145			`#endif`
146
147			`#if HAVE__SYSTEM_CONFIGURATION`
148			`/* This works on AIX 4.3.3+. */`
149			`return _system_configuration.physmem;`
150			`#endif`
151
152			`#if defined _WIN32`
153			`{ /* this works on windows */`
154			`PFN_MS_EX pfnex;`
155			`HMODULE h = GetModuleHandle ("kernel32.dll");`
156
157			`if (!h)`
158			`return 0.0;`
159
160			`/* Use GlobalMemoryStatusEx if available. */`
161			`if ((pfnex = (PFN_MS_EX) GetProcAddress (h, "GlobalMemoryStatusEx")))`
162			`{`
163			`lMEMORYSTATUSEX lms_ex;`
164			`lms_ex.dwLength = sizeof lms_ex;`
165			`if (!pfnex (&lms_ex))`
166			`return 0.0;`
167			`return (double) lms_ex.ullTotalPhys;`
168			`}`
169
170			`/* Fall back to GlobalMemoryStatus which is always available.`
171			`but returns wrong results for physical memory > 4GB. */`
172			`else`
173			`{`
174			`MEMORYSTATUS ms;`
175			`GlobalMemoryStatus (&ms);`
176			`return (double) ms.dwTotalPhys;`
177			`}`
178			`}`
179			`#endif`
180
181			`/* Return 0 if we can't determine the value. */`
182			`return 0;`
183			`}`
184
185			`/* Return the amount of physical memory available. */`
186			`double`
187			`physmem_available (void)`
188			`{`
189			`#if defined _SC_AVPHYS_PAGES && defined _SC_PAGESIZE`
190			`{ /* This works on linux-gnu, solaris2 and cygwin. */`
191			`double pages = sysconf (_SC_AVPHYS_PAGES);`
192			`double pagesize = sysconf (_SC_PAGESIZE);`
193			`if (0 <= pages && 0 <= pagesize)`
194			`return pages * pagesize;`
195			`}`
196			`#endif`
197
198			`#if HAVE_PSTAT_GETSTATIC && HAVE_PSTAT_GETDYNAMIC`
199			`{ /* This works on hpux11. */`
200			`struct pst_static pss;`
201			`struct pst_dynamic psd;`
202			`if (0 <= pstat_getstatic (&pss, sizeof pss, 1, 0)`
203			`&& 0 <= pstat_getdynamic (&psd, sizeof psd, 1, 0))`
204			`{`
205			`double pages = psd.psd_free;`
206			`double pagesize = pss.page_size;`
207			`if (0 <= pages && 0 <= pagesize)`
208			`return pages * pagesize;`
209			`}`
210			`}`
211			`#endif`
212
213			`#if HAVE_SYSMP && defined MP_SAGET && defined MPSA_RMINFO && defined _SC_PAGESIZE`
214			`{ /* This works on irix6. */`
215			`struct rminfo realmem;`
216			`if (sysmp (MP_SAGET, MPSA_RMINFO, &realmem, sizeof realmem) == 0)`
217			`{`
218			`double pagesize = sysconf (_SC_PAGESIZE);`
219			`double pages = realmem.availrmem;`
220			`if (0 <= pages && 0 <= pagesize)`
221			`return pages * pagesize;`
222			`}`
223			`}`
224			`#endif`
225
226			`#if HAVE_TABLE && defined TBL_VMSTATS`
227			`{ /* This works on Tru64 UNIX V4/5. */`
228			`struct tbl_vmstats vmstats;`
229
230			`if (table (TBL_VMSTATS, 0, &vmstats, 1, sizeof (vmstats)) == 1)`
231			`{`
232			`double pages = vmstats.free_count;`
233			`double pagesize = vmstats.pagesize;`
234
235			`if (0 <= pages && 0 <= pagesize)`
236			`return pages * pagesize;`
237			`}`
238			`}`
239			`#endif`
240
241			`#if HAVE_SYSCTL && defined HW_USERMEM`
242			`{ /* This works on bsd and darwin. /`
243			`unsigned int usermem;`
244			`size_t len = sizeof usermem;`
245			`static int mib[2] = { CTL_HW, HW_USERMEM };`
246
247			`if (sysctl (mib, ARRAY_SIZE (mib), &usermem, &len, NULL, 0) == 0`
248			`&& len == sizeof (usermem))`
249			`return (double) usermem;`
250			`}`
251			`#endif`
252
253			`#if defined _WIN32`
254			`{ /* this works on windows */`
255			`PFN_MS_EX pfnex;`
256			`HMODULE h = GetModuleHandle ("kernel32.dll");`
257
258			`if (!h)`
259			`return 0.0;`
260
261			`/* Use GlobalMemoryStatusEx if available. */`
262			`if ((pfnex = (PFN_MS_EX) GetProcAddress (h, "GlobalMemoryStatusEx")))`
263			`{`
264			`lMEMORYSTATUSEX lms_ex;`
265			`lms_ex.dwLength = sizeof lms_ex;`
266			`if (!pfnex (&lms_ex))`
267			`return 0.0;`
268			`return (double) lms_ex.ullAvailPhys;`
269			`}`
270
271			`/* Fall back to GlobalMemoryStatus which is always available.`
272			`but returns wrong results for physical memory > 4GB */`
273			`else`
274			`{`
275			`MEMORYSTATUS ms;`
276			`GlobalMemoryStatus (&ms);`
277			`return (double) ms.dwAvailPhys;`
278			`}`
279			`}`
280			`#endif`
281
282			`/* Guess 25% of physical memory. */`
283			`return physmem_total () / 4;`
284			`}`
285
286
287			`#if DEBUG`
288
289			`# include <stdio.h>`
290			`# include <stdlib.h>`
291
292			`int`
293			`main (void)`
294			`{`
295			`printf ("%12.f %12.f\n", physmem_total (), physmem_available ());`
296			`exit (0);`
297			`}`
298
299			`#endif /* DEBUG */`
300
301			`/*`
302			`Local Variables:`
303			`compile-command: "gcc -DDEBUG -DHAVE_CONFIG_H -I.. -g -O -Wall -W physmem.c"`
304			`End:`
305			`*/`