Import dietlibc 0.22 + other fixes for AMD64

1 files changed, 43 insertions, 0 deletions

diff --git a/mdk-stage1/dietlibc/libcruft/sysconf.c b/mdk-stage1/dietlibc/libcruft/sysconf.c
new file mode 100644
index 000000000..e9c15cb66
--- /dev/null
+++ b/mdk-stage1/dietlibc/libcruft/sysconf.c
@@ -0,0 +1,43 @@
+#include <unistd.h>
+#include <errno.h>
+#include <limits.h>
+#include <sys/resource.h>
+
+extern int __sc_nr_cpus();
+
+long sysconf(int name)
+{
+  switch(name)
+  {
+  case _SC_OPEN_MAX:
+    {
+      struct rlimit limit;
+      getrlimit(RLIMIT_NOFILE, &limit);
+      return limit.rlim_cur;
+    }
+  case _SC_CLK_TCK:
+#ifdef __alpha__
+    return 1024;
+#else
+    return 100;
+#endif
+
+  case _SC_PAGESIZE:
+#if ( defined(__alpha__) || defined(__sparc__) )
+    return 8192;
+#else
+    return 4096;
+#endif
+
+  case _SC_ARG_MAX:
+    return ARG_MAX;
+
+  case _SC_NGROUPS_MAX:
+    return NGROUPS_MAX;
+
+  case _SC_NPROCESSORS_ONLN:
+    return __sc_nr_cpus();
+
+  }
+  return -1;
+}