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authorAnders Kaseorg <andersk@mit.edu>2008-12-06 03:03:58 +0300
committerRusty Russell <rusty@rustcorp.com.au>2009-03-31 06:35:32 +0400
commit75a66614db21007bcc8c37f9c5d5b922981387b9 (patch)
treed02c905a3aee02ec25ce38700f47d0fa57d2cbf7 /include/linux/kallsyms.h
parenta6e6abd575fcbe6572ebc7a70ad616406d206fa8 (diff)
downloadlinux-75a66614db21007bcc8c37f9c5d5b922981387b9.tar.xz
Ksplice: Add functions for walking kallsyms symbols
Impact: New API kallsyms_lookup_name only returns the first match that it finds. Ksplice needs information about all symbols with a given name in order to correctly resolve local symbols. kallsyms_on_each_symbol provides a generic mechanism for iterating over the kallsyms table. Cc: Jeff Arnold <jbarnold@mit.edu> Cc: Tim Abbott <tabbott@mit.edu> Signed-off-by: Anders Kaseorg <andersk@mit.edu> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'include/linux/kallsyms.h')
-rw-r--r--include/linux/kallsyms.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index f3fe34391d8e..792274269f2b 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -13,10 +13,17 @@
#define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + (KSYM_NAME_LEN - 1) + \
2*(BITS_PER_LONG*3/10) + (MODULE_NAME_LEN - 1) + 1)
+struct module;
+
#ifdef CONFIG_KALLSYMS
/* Lookup the address for a symbol. Returns 0 if not found. */
unsigned long kallsyms_lookup_name(const char *name);
+/* Call a function on each kallsyms symbol in the core kernel */
+int kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *,
+ unsigned long),
+ void *data);
+
extern int kallsyms_lookup_size_offset(unsigned long addr,
unsigned long *symbolsize,
unsigned long *offset);
@@ -43,6 +50,14 @@ static inline unsigned long kallsyms_lookup_name(const char *name)
return 0;
}
+static inline int kallsyms_on_each_symbol(int (*fn)(void *, const char *,
+ struct module *,
+ unsigned long),
+ void *data)
+{
+ return 0;
+}
+
static inline int kallsyms_lookup_size_offset(unsigned long addr,
unsigned long *symbolsize,
unsigned long *offset)