X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=libiberty%2Fphysmem.c;h=09fbf3f8c83ec179a4cbdfd3a7ccacd4602809ee;hb=1490694c42d0fbf815b5f1381238e2363a7e9ea8;hp=6954261a423696da70d11e102ed04ccafb1233c9;hpb=25b160f758362ad6545783a991bfb65a594bb5d4;p=pf3gnuchains%2Fgcc-fork.git diff --git a/libiberty/physmem.c b/libiberty/physmem.c index 6954261a423..09fbf3f8c83 100644 --- a/libiberty/physmem.c +++ b/libiberty/physmem.c @@ -1,5 +1,5 @@ /* Calculate the size of physical memory. - Copyright 2000, 2001 Free Software Foundation, Inc. + 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 @@ -13,7 +13,7 @@ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ /* Written by Paul Eggert. */ @@ -29,12 +29,61 @@ # include #endif +#if HAVE_SYS_SYSMP_H +# include +#endif + +#if HAVE_SYS_SYSINFO_H && HAVE_MACHINE_HAL_SYSINFO_H +# include +# include +#endif + +#if HAVE_SYS_TABLE_H +# include +#endif + +#include + +#if HAVE_SYS_PARAM_H +# include +#endif + +#if HAVE_SYS_SYSCTL_H +# include +#endif + +#if HAVE_SYS_SYSTEMCFG_H +# include +#endif + +#ifdef _WIN32 +# define WIN32_LEAN_AND_MEAN +# include +/* 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 () +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) @@ -43,7 +92,7 @@ physmem_total () #endif #if HAVE_PSTAT_GETSTATIC - { + { /* This works on hpux11. */ struct pst_static pss; if (0 <= pstat_getstatic (&pss, sizeof pss, 1, 0)) { @@ -55,16 +104,90 @@ physmem_total () } #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 () +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) @@ -73,7 +196,7 @@ physmem_available () #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) @@ -87,6 +210,96 @@ physmem_available () } #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 +# include + +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: +*/