From: Mark Huang <mlhuang@cs.princeton.edu>
Date: Fri, 17 Sep 2004 15:28:58 +0000 (+0000)
Subject: Initial revision
X-Git-Tag: before-enable-kexec-patch~79
X-Git-Url: http://git.onelab.eu/?a=commitdiff_plain;h=36472a1ef8b80f65ef9dd7f77503b1c117bfdccc;p=linux-2.6.git

Initial revision
---

diff --git a/arch/um/sys-i386/bitops.c b/arch/um/sys-i386/bitops.c
new file mode 100644
index 000000000..97db3853d
--- /dev/null
+++ b/arch/um/sys-i386/bitops.c
@@ -0,0 +1,70 @@
+#include <linux/bitops.h>
+#include <linux/module.h>
+
+/**
+ * find_next_bit - find the first set bit in a memory region
+ * @addr: The address to base the search on
+ * @offset: The bitnumber to start searching at
+ * @size: The maximum size to search
+ */
+int find_next_bit(const unsigned long *addr, int size, int offset)
+{
+	const unsigned long *p = addr + (offset >> 5);
+	int set = 0, bit = offset & 31, res;
+
+	if (bit) {
+		/*
+		 * Look for nonzero in the first 32 bits:
+		 */
+		__asm__("bsfl %1,%0\n\t"
+			"jne 1f\n\t"
+			"movl $32, %0\n"
+			"1:"
+			: "=r" (set)
+			: "r" (*p >> bit));
+		if (set < (32 - bit))
+			return set + offset;
+		set = 32 - bit;
+		p++;
+	}
+	/*
+	 * No set bit yet, search remaining full words for a bit
+	 */
+	res = find_first_bit (p, size - 32 * (p - addr));
+	return (offset + set + res);
+}
+EXPORT_SYMBOL(find_next_bit);
+
+/**
+ * find_next_zero_bit - find the first zero bit in a memory region
+ * @addr: The address to base the search on
+ * @offset: The bitnumber to start searching at
+ * @size: The maximum size to search
+ */
+int find_next_zero_bit(const unsigned long *addr, int size, int offset)
+{
+	unsigned long * p = ((unsigned long *) addr) + (offset >> 5);
+	int set = 0, bit = offset & 31, res;
+
+	if (bit) {
+		/*
+		 * Look for zero in the first 32 bits.
+		 */
+		__asm__("bsfl %1,%0\n\t"
+			"jne 1f\n\t"
+			"movl $32, %0\n"
+			"1:"
+			: "=r" (set)
+			: "r" (~(*p >> bit)));
+		if (set < (32 - bit))
+			return set + offset;
+		set = 32 - bit;
+		p++;
+	}
+	/*
+	 * No zero yet, search remaining full bytes for a zero
+	 */
+	res = find_first_zero_bit (p, size - 32 * (p - (unsigned long *) addr));
+	return (offset + set + res);
+}
+EXPORT_SYMBOL(find_next_zero_bit);
diff --git a/scripts/elfconfig.h b/scripts/elfconfig.h
new file mode 100644
index 000000000..1b2f317b3
--- /dev/null
+++ b/scripts/elfconfig.h
@@ -0,0 +1,5 @@
+#define KERNEL_ELFCLASS ELFCLASS32
+#define KERNEL_ELFDATA ELFDATA2LSB
+#define HOST_ELFCLASS ELFCLASS32
+#define HOST_ELFDATA ELFDATA2LSB
+#define MODULE_SYMBOL_PREFIX ""
diff --git a/scripts/mk_elfconfig b/scripts/mk_elfconfig
new file mode 100644
index 000000000..cff1abc37
Binary files /dev/null and b/scripts/mk_elfconfig differ
diff --git a/scripts/modpost b/scripts/modpost
new file mode 100644
index 000000000..9bbb6fc9a
Binary files /dev/null and b/scripts/modpost differ