X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=kernel%2Fkallsyms.c;h=374faf9bfdc79c5fcac1ef2d70ce3671765362f7;hb=ca35dcd6cae7d4a780c484c53f45548c4719f82c;hp=7dadc71ce5162926529172e5a9ff71b86590a4a4;hpb=6dd06c9fbe025f542bce4cdb91790c0f91962722;p=safe%2Fjmp%2Flinux-2.6

diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 7dadc71..374faf9 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -53,14 +53,6 @@ static inline int is_kernel_inittext(unsigned long addr)
 	return 0;
 }
 
-static inline int is_kernel_extratext(unsigned long addr)
-{
-	if (addr >= (unsigned long)_sextratext
-	    && addr <= (unsigned long)_eextratext)
-		return 1;
-	return 0;
-}
-
 static inline int is_kernel_text(unsigned long addr)
 {
 	if (addr >= (unsigned long)_stext && addr <= (unsigned long)_etext)
@@ -80,8 +72,7 @@ static int is_ksym_addr(unsigned long addr)
 	if (all_var)
 		return is_kernel(addr);
 
-	return is_kernel_text(addr) || is_kernel_inittext(addr) ||
-		is_kernel_extratext(addr);
+	return is_kernel_text(addr) || is_kernel_inittext(addr);
 }
 
 /* expand a compressed symbol data into the resulting uncompressed string,
@@ -170,6 +161,25 @@ unsigned long kallsyms_lookup_name(const char *name)
 	return module_kallsyms_lookup_name(name);
 }
 
+int kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *,
+				      unsigned long),
+			    void *data)
+{
+	char namebuf[KSYM_NAME_LEN];
+	unsigned long i;
+	unsigned int off;
+	int ret;
+
+	for (i = 0, off = 0; i < kallsyms_num_syms; i++) {
+		off = kallsyms_expand_symbol(off, namebuf);
+		ret = fn(data, namebuf, NULL, kallsyms_addresses[i]);
+		if (ret != 0)
+			return ret;
+	}
+	return module_kallsyms_on_each_symbol(fn, data);
+}
+EXPORT_SYMBOL_GPL(kallsyms_on_each_symbol);
+
 static unsigned long get_symbol_pos(unsigned long addr,
 				    unsigned long *symbolsize,
 				    unsigned long *offset)
@@ -185,7 +195,7 @@ static unsigned long get_symbol_pos(unsigned long addr,
 	high = kallsyms_num_syms;
 
 	while (high - low > 1) {
-		mid = (low + high) / 2;
+		mid = low + (high - low) / 2;
 		if (kallsyms_addresses[mid] <= addr)
 			low = mid;
 		else
@@ -269,7 +279,6 @@ const char *kallsyms_lookup(unsigned long addr,
 	/* see if it's in a module */
 	return module_address_lookup(addr, symbolsize, offset, modname,
 				     namebuf);
-	return NULL;
 }
 
 int lookup_symbol_name(unsigned long addr, char *symname)
@@ -314,17 +323,24 @@ int sprint_symbol(char *buffer, unsigned long address)
 	char *modname;
 	const char *name;
 	unsigned long offset, size;
-	char namebuf[KSYM_NAME_LEN];
+	int len;
 
-	name = kallsyms_lookup(address, &size, &offset, &modname, namebuf);
+	name = kallsyms_lookup(address, &size, &offset, &modname, buffer);
 	if (!name)
 		return sprintf(buffer, "0x%lx", address);
 
+	if (name != buffer)
+		strcpy(buffer, name);
+	len = strlen(buffer);
+	buffer += len;
+
 	if (modname)
-		return sprintf(buffer, "%s+%#lx/%#lx [%s]", name, offset,
-				size, modname);
+		len += sprintf(buffer, "+%#lx/%#lx [%s]",
+						offset, size, modname);
 	else
-		return sprintf(buffer, "%s+%#lx/%#lx", name, offset, size);
+		len += sprintf(buffer, "+%#lx/%#lx", offset, size);
+
+	return len;
 }
 
 /* Look up a kernel symbol and print it to the kernel messages. */
@@ -481,11 +497,7 @@ static const struct file_operations kallsyms_operations = {
 
 static int __init kallsyms_init(void)
 {
-	struct proc_dir_entry *entry;
-
-	entry = create_proc_entry("kallsyms", 0444, NULL);
-	if (entry)
-		entry->proc_fops = &kallsyms_operations;
+	proc_create("kallsyms", 0444, NULL, &kallsyms_operations);
 	return 0;
 }
 __initcall(kallsyms_init);