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From 045761a60c8beb28e82b68e284bf8e395036688f Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Tue, 27 Sep 2022 16:21:26 +0200
Subject: [PATCH 37/96] kernel: when KALLSYMS is disabled, print module address
+ size for matching backtrace entries
[john@phrozen.org: felix will add this to his upstream queue]
lede-commit 53827cdc824556cda910b23ce5030c363b8f1461
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
lib/vsprintf.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 3c1853a9d1c0..9803f88d7d21 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -980,8 +980,10 @@ char *symbol_string(char *buf, char *end, void *ptr,
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')
@@ -1002,8 +1004,14 @@ char *symbol_string(char *buf, char *end, void *ptr,
return string_nocheck(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 const struct printf_spec default_str_spec = {
--
2.37.2
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