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authorLinus Torvalds <torvalds@linux-foundation.org>2008-05-15 17:50:37 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-15 17:50:37 -0700
commita442ac512f36981182e66a427ad05f449ff6593b (patch)
tree8a99f2f4cb7f66e816163068c0c2c709c1852ac6 /include
parent7371fd11a6e2aed99895db4f100940fa5022f7fe (diff)
downloadop-kernel-dev-a442ac512f36981182e66a427ad05f449ff6593b.zip
op-kernel-dev-a442ac512f36981182e66a427ad05f449ff6593b.tar.gz
Clean up 'print_fn_descriptor_symbol()' types
Everybody wants to pass it a function pointer, and in fact, that is what you _must_ pass it for it to make sense (since it knows that ia64 and ppc64 use descriptors for function pointers and fetches the actual address from there). So don't make the argument be a 'unsigned long' and force everybody to add a cast. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/kallsyms.h24
1 files changed, 14 insertions, 10 deletions
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 82de2fb..00c1801 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -83,16 +83,6 @@ __attribute__((format(printf,1,2)));
static inline void __check_printsym_format(const char *fmt, ...)
{
}
-/* ia64 and ppc64 use function descriptors, which contain the real address */
-#if defined(CONFIG_IA64) || defined(CONFIG_PPC64)
-#define print_fn_descriptor_symbol(fmt, addr) \
-do { \
- unsigned long *__faddr = (unsigned long*) addr; \
- print_symbol(fmt, __faddr[0]); \
-} while (0)
-#else
-#define print_fn_descriptor_symbol(fmt, addr) print_symbol(fmt, addr)
-#endif
static inline void print_symbol(const char *fmt, unsigned long addr)
{
@@ -101,6 +91,20 @@ static inline void print_symbol(const char *fmt, unsigned long addr)
__builtin_extract_return_addr((void *)addr));
}
+/*
+ * Pretty-print a function pointer.
+ *
+ * ia64 and ppc64 function pointers are really function descriptors,
+ * which contain a pointer the real address.
+ */
+static inline void print_fn_descriptor_symbol(const char *fmt, void *addr)
+{
+#if defined(CONFIG_IA64) || defined(CONFIG_PPC64)
+ addr = *(void **)addr;
+#endif
+ print_symbol(fmt, (unsigned long)addr);
+}
+
#ifndef CONFIG_64BIT
#define print_ip_sym(ip) \
do { \
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