Clean-up target configuration in preparation for adding P9 support

The previous implementation of targeting was hardcoded, cumbersome
and difficult to reconfigure for different chip types. This moves to a
method of configuring targets using device-tree which is much easier
to maintain and allows methods to be added to support operations like
getmem on POWER9.

Signed-off-by: Alistair Popple <alistair@popple.id.au>

1 files changed, 52 insertions, 0 deletions

diff --git a/ccan/str/_info b/ccan/str/_info
new file mode 100644
index 0000000..548f059
--- /dev/null
+++ b/ccan/str/_info
@@ -0,0 +1,52 @@
+#include <stdio.h>
+#include <string.h>
+#include "config.h"
+
+/**
+ * str - string helper routines
+ *
+ * This is a grab bag of functions for string operations, designed to enhance
+ * the standard string.h.
+ *
+ * Note that if you define CCAN_STR_DEBUG, you will get extra compile
+ * checks on common misuses of the following functions (they will now
+ * be out-of-line, so there is a runtime penalty!).
+ *
+ *	strstr, strchr, strrchr:
+ *		Return const char * if first argument is const (gcc only).
+ *
+ *	isalnum, isalpha, isascii, isblank, iscntrl, isdigit, isgraph,
+ *	    islower, isprint, ispunct, isspace, isupper, isxdigit:
+ *		Static and runtime check that input is EOF or an *unsigned*
+ *		char, as per C standard (really!).
+ *
+ * Example:
+ *	#include <stdio.h>
+ *	#include <ccan/str/str.h>
+ *
+ *	int main(int argc, char *argv[])
+ *	{
+ *		if (argv[1] && streq(argv[1], "--verbose"))
+ *			printf("verbose set\n");
+ *		if (argv[1] && strstarts(argv[1], "--"))
+ *			printf("Some option set\n");
+ *		if (argv[1] && strends(argv[1], "cow-powers"))
+ *			printf("Magic option set\n");
+ *		return 0;
+ *	}
+ *
+ * License: CC0 (Public domain)
+ * Author: Rusty Russell <rusty@rustcorp.com.au>
+ */
+int main(int argc, char *argv[])
+{
+	if (argc != 2)
+		return 1;
+
+	if (strcmp(argv[1], "depends") == 0) {
+		printf("ccan/build_assert\n");
+		return 0;
+	}
+
+	return 1;
+}