* configure.in: Check for sys/sysctl.h and sysctl.

	* physmem.c: Add support for *bsd and darwin.
	* Makefile.in: Generate depedency for physmem.o.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@63285 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 34 insertions, 0 deletions

diff --git a/libiberty/physmem.c b/libiberty/physmem.c
index 2011f0251bd..c502a86c118 100644
--- a/libiberty/physmem.c
+++ b/libiberty/physmem.c
@@ -42,6 +42,16 @@
 #  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
+
 #include "libiberty.h"
 
 /* Return the total amount of physical memory.  */
@@ -98,6 +108,18 @@ 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
+
   /* Return 0 if we can't determine the value.  */
   return 0;
 }
@@ -158,6 +180,18 @@ 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
+
   /* Guess 25% of physical memory.  */
   return physmem_total () / 4;
 }