Ah so.
How about the following "sym(addr, buf)" macro? This could make it
more practical to include kernel symbols within ordinary printk's.
On a silly little test with:
{
char b1[32], b2[32], b3[32];
printk(">>>>>> Testing sym(): A. %s, B. %s, C. %s\n",
sym(&pid_max, b1),
sym(0xffffffff80615750, b2), /* an addr in my System.map */
sym(0, b3));
}
the kernel printed:
>>>>>> Testing sym(): A. pid_max+0x0/0x4, B. trampoline_base+0x0/0x10, C. 0x0
===========================================================================
--- linux.orig/include/linux/kallsyms.h 2008-06-23 15:16:49.885666712 -0700
+++ linux/include/linux/kallsyms.h 2008-06-25 00:48:09.446807842 -0700
@@ -32,6 +32,12 @@ extern int sprint_symbol(char *buffer, u
/* Look up a kernel symbol and print it to the kernel messages. */
extern void __print_symbol(const char *fmt, unsigned long address);
+/* Convert address to kernel symbol; can printk result with "%s" format */
+#define sym(address, namebuf) ({ \
+ sprint_symbol((namebuf), (unsigned long)(address)); \
+ (namebuf); \
+})
+
int lookup_symbol_name(unsigned long addr, char *symname);
int lookup_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name);
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@sgi.com> 1.940.382.4214
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