source: clfs-sysroot/patches/coreutils-6.12-uname-1.patch@ bad66e0

Submitted By: Jim Gifford <jim at linuxfromscratch dot org>
Date: 2006-08-24
Initial Package Version: 5.97
        Rediffed against 6.12 by Joe Ciccone on 2008-08-30
Upstream Status: Not Accepted
Origin: Gentoo - http://sources.gentoo.org/viewcvs.py/gentoo/src/patchsets/coreutils
Description: Display CPU Information from /proc/cpuinfo or /proc/sysinfo

Original Patch by - Matthew Burgess and Scot McPherson

diff -Naur coreutils-6.12.orig/src/uname.c coreutils-6.12/src/uname.c
--- coreutils-6.12.orig/src/uname.c     2008-05-26 02:40:33.000000000 -0400
+++ coreutils-6.12/src/uname.c  2008-08-31 12:03:12.000000000 -0400
@@ -50,6 +50,11 @@
 # include <mach-o/arch.h>
 #endif
 
+#if defined (__linux__)
+# define USE_PROCINFO
+# define UNAME_HARDWARE_PLATFORM
+#endif
+
 #include "system.h"
 #include "error.h"
 #include "quote.h"
@@ -158,6 +163,106 @@
   exit (status);
 }
 
+#if defined(USE_PROCINFO)
+
+# if defined(__s390__) || defined(__s390x__)
+#  define CPUINFO_FILE    "/proc/sysinfo"
+#  define CPUINFO_FORMAT  "%64[^\t :]%*[ :]%256[^\n]%c"
+# else
+#  define CPUINFO_FILE    "/proc/cpuinfo"
+#  define CPUINFO_FORMAT  "%64[^\t:]\t:%256[^\n]%c"
+# endif
+
+# define PROCINFO_PROCESSOR      0
+# define PROCINFO_HARDWARE_PLATFORM 1
+
+static void __eat_cpuinfo_space(char *buf)
+{
+       /* first eat trailing space */
+       char *tmp = buf + strlen(buf) - 1;
+       while (tmp > buf && isspace(*tmp))
+               *tmp-- = '\0';
+       /* then eat leading space */
+       tmp = buf;
+       while (*tmp && isspace(*tmp))
+               tmp++;
+       if (tmp != buf)
+               memmove(buf, tmp, strlen(tmp)+1);
+}
+
+static int __linux_procinfo (int x, char *fstr, size_t s)
+{
+       FILE *fp;
+
+       char *procinfo_keys[] = {
+               /* --processor --hardware-platform */
+               #if defined(__alpha__)
+                       "cpu model", "system type"
+               #elif defined(__arm__)
+                       "Processor", "Hardware"
+               #elif defined(bfin)
+                       "CPU", "BOARD Name"
+               #elif defined(__cris__)
+                       "cpu", "cpu model"
+               #elif defined(__frv__)
+                       "CPU-Core", "System"
+               #elif defined(__i386__) || defined(__x86_64__)
+                       "model name", "vendor_id"
+               #elif defined(__ia64__)
+                       "family", "vendor"
+               #elif defined(__hppa__)
+                       "cpu", "model"
+               #elif defined(__m68k__)
+                       "CPU", "MMU"
+               #elif defined(__mips__)
+                       "cpu model", "system type"
+               #elif defined(__powerpc__) || defined(__powerpc64__)
+                       "cpu", "machine"
+               #elif defined(__s390__) || defined(__s390x__)
+                       "Type", "Manufacturer"
+               #elif defined(__sh__)
+                       "cpu type", "machine"
+               #elif defined(sparc) || defined(__sparc__)
+                       "type", "cpu"
+               #elif defined(__vax__)
+                       "cpu type", "cpu"
+               #else
+                       "unknown", "unknown"
+               #endif
+       };
+
+       if ((fp = fopen(CPUINFO_FILE, "r")) != NULL) {
+               char key[65], value[257], eol, *ret = NULL;
+
+               while (fscanf(fp, CPUINFO_FORMAT, key, value, &eol) != EOF) {
+                       __eat_cpuinfo_space(key);
+                       if (!strcmp(key, procinfo_keys[x])) {
+                               __eat_cpuinfo_space(value);
+                               ret = value;
+                               break;
+                       }
+                       if (eol != '\n') {
+                               /* we need two fscanf's here in case the previous
+                                * length limit caused us to read right up to the
+                                * newline ... doing "%*[^\n]\n" wont eat the newline
+                                */
+                               fscanf(fp, "%*[^\n]");
+                               fscanf(fp, "\n");
+                       }
+               }
+               fclose(fp);
+
+               if (ret) {
+                       strncpy(fstr, ret, s);
+                       return 0;
+               }
+       }
+
+       return -1;
+}
+
+#endif
+
 /* Print ELEMENT, preceded by a space if something has already been
    printed.  */
 
@@ -305,10 +410,14 @@
   if (toprint & PRINT_PROCESSOR)
     {
       char const *element = unknown;
-#if HAVE_SYSINFO && defined SI_ARCHITECTURE
+#if ( HAVE_SYSINFO && defined SI_ARCHITECTURE ) || defined(USE_PROCINFO)
       {
        static char processor[257];
+#if defined(USE_PROCINFO)
+       if (0 <= __linux_procinfo (PROCINFO_PROCESSOR, processor, sizeof processor))
+#else
        if (0 <= sysinfo (SI_ARCHITECTURE, processor, sizeof processor))
+#endif
          element = processor;
       }
 #endif
@@ -361,9 +470,13 @@
       if (element == unknown)
        {
          static char hardware_platform[257];
+#if defined(USE_PROCINFO)
+         if (0 <= __linux_procinfo (PROCINFO_HARDWARE_PLATFORM, hardware_platform, sizeof hardware_platform))
+#else
          size_t s = sizeof hardware_platform;
          static int mib[] = { CTL_HW, UNAME_HARDWARE_PLATFORM };
          if (sysctl (mib, 2, hardware_platform, &s, 0, 0) >= 0)
+#endif
            element = hardware_platform;
        }
 #endif