openwrtv4/target/linux/generic/patches-4.9/205-backtrace_module_info.patch
Martin Blumenstingl 0caffa60af kernel: fix compile error on linux 4.9 with CONFIG_KALLSYMS disabled
Upstream linux commit 7523e4dc5057e "module: use a structure to
encapsulate layout." moves some of the struct module members into a
separate struct module_layout.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
2017-02-12 13:55:13 +01:00

34 lines
873 B
Diff

--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -669,8 +669,10 @@ char *symbol_string(char *buf, char *end
struct printf_spec spec, const char *fmt)
{
unsigned long value;
-#ifdef CONFIG_KALLSYMS
char sym[KSYM_SYMBOL_LEN];
+#ifndef CONFIG_KALLSYMS
+ struct module *mod;
+ int len;
#endif
if (fmt[1] == 'R')
@@ -684,11 +686,16 @@ char *symbol_string(char *buf, char *end
sprint_symbol(sym, value);
else
sprint_symbol_no_offset(sym, value);
-
- return string(buf, end, sym, spec);
#else
- return special_hex_number(buf, end, value, sizeof(void *));
+ len = snprintf(sym, sizeof(sym), "0x%lx", value);
+
+ mod = __module_address(value);
+ if (mod)
+ snprintf(sym + len, sizeof(sym) - len, " [%s@%p+0x%x]",
+ mod->name, mod->core_layout.base,
+ mod->core_layout.size);
#endif
+ return string(buf, end, sym, spec);
}
static noinline_for_stack