/branches/18.06.1/target/linux/generic/pending-4.14/205-backtrace_module_info.patch |
@@ -0,0 +1,45 @@ |
From: Felix Fietkau <nbd@nbd.name> |
Subject: kernel: when KALLSYMS is disabled, print module address + size for matching backtrace entries |
|
[john@phrozen.org: felix will add this to his upstream queue] |
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lede-commit 53827cdc824556cda910b23ce5030c363b8f1461 |
Signed-off-by: Felix Fietkau <nbd@nbd.name> |
--- |
lib/vsprintf.c | 15 +++++++++++---- |
1 file changed, 11 insertions(+), 4 deletions(-) |
|
--- a/lib/vsprintf.c |
+++ b/lib/vsprintf.c |
@@ -670,8 +670,10 @@ 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') |
@@ -685,11 +687,16 @@ 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 |