X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=libiberty%2Fphysmem.c;h=f9427168a66c89da815e65d850ce71314347d9ee;hb=HEAD;hp=2011f0251bd1a3df3667909ac8854e8a03260722;hpb=4a06f7f2ec8474a1cc98952ca270adc81c422fc1;p=thirdparty%2Fgcc.git diff --git a/libiberty/physmem.c b/libiberty/physmem.c index 2011f0251bd1..845272ff49ab 100644 --- a/libiberty/physmem.c +++ b/libiberty/physmem.c @@ -1,5 +1,5 @@ /* Calculate the size of physical memory. - Copyright 2000, 2001, 2003 Free Software Foundation, Inc. + Copyright (C) 2000-2024 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 @@ -13,9 +13,9 @@ 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 and Jim Meyering. */ +/* Written by Paul Eggert. */ #if HAVE_CONFIG_H # include @@ -30,26 +30,60 @@ #endif #if HAVE_SYS_SYSMP_H -#include +# include #endif #if HAVE_SYS_SYSINFO_H && HAVE_MACHINE_HAL_SYSINFO_H -# include -# include +# include +# include #endif #if HAVE_SYS_TABLE_H -# include +# 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) @@ -73,17 +107,17 @@ physmem_total () #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) + 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; + return pages * pagesize; } } #endif -#if HAVE_GETSYSINFO +#if HAVE_GETSYSINFO && defined GSI_PHYSMEM { /* This works on Tru64 UNIX V4/5. */ int physmem; @@ -98,16 +132,62 @@ physmem_total () } #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) @@ -133,17 +213,17 @@ physmem_available () #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) + 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; + return pages * pagesize; } } #endif -#if HAVE_TABLE && HAVE_SYS_TABLE_H +#if HAVE_TABLE && defined TBL_VMSTATS { /* This works on Tru64 UNIX V4/5. */ struct tbl_vmstats vmstats; @@ -158,6 +238,47 @@ physmem_available () } #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; } @@ -169,7 +290,7 @@ physmem_available () # include int -main () +main (void) { printf ("%12.f %12.f\n", physmem_total (), physmem_available ()); exit (0);