coreutils: add uname patch

On linux platforms, grok /proc/cpuinfo for the CPU/vendor info.

Signed-off-by: Martin Banky <Martin.Banky@gmail.com>
Acked-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/coreutils/coreutils-8.5-uname.patch

@@ -0,0 +1,173 @@
+On linux platforms, grok /proc/cpuinfo for the CPU/vendor info.
+
+Prob not suitable for upstream seeing as how it's 100% linux-specific
+http://lists.gnu.org/archive/html/bug-coreutils/2005-09/msg00063.html
+
+Patch originally by Carlos E. Gorges <carlos@techlinux.com.br>, but 
+heavily reworked to suck less.
+
+To add support for additional platforms, check out the show_cpuinfo()
+func in the linux/arch/<ARCH>/ source tree of the kernel.
+
+--- coreutils/src/uname.c
++++ coreutils/src/uname.c
+@@ -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"
+@@ -138,6 +143,117 @@
+   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);
++	/* finally collapse whitespace */
++	tmp = buf;
++	while (tmp[0] && tmp[1]) {
++		if (isspace(tmp[0]) && isspace(tmp[1])) {
++			memmove(tmp, tmp+1, strlen(tmp));
++			continue;
++		}
++		++tmp;
++	}
++}
++
++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(__avr32__)
++			"processor", "cpu family"
++		#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.  */
+ 
+@@ -250,10 +344,14 @@ main (int argc, char **argv)
+   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
+@@ -306,9 +404,13 @@ main (int argc, char **argv)
+       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

package/coreutils/coreutils.mk

@@ -54,6 +54,14 @@ COREUTILS_CONF_OPT = --disable-rpath \
 		--disable-dependency-tracking \
 		--enable-install-program=hostname
 
+define COREUTILS_TOUCH_UNAME_C
+	# ensure uname.c file's timestamp does not change,
+	# so help2man does not run
+	touch -d '2010-01-01' $(@D)/src/uname.c
+endef
+
+COREUTILS_POST_PATCH_HOOKS += COREUTILS_TOUCH_UNAME_C
+
 define COREUTILS_POST_INSTALL
 	# some things go in root rather than usr
 	for f in $(COREUTILS_BIN_PROGS); do \