openwrt/target/linux/generic/pending-5.4/205-backtrace_module_info.patch
Hauke Mehrtens a1d50e7b45 kernel: bump 5.4 to 5.4.132
Manually rebased
  layerscape/patches-5.4/805-display-0002-drm-rockchip-prepare-common-code-for-cdns-and-rk-dpi.patch

All others updated automatically.

Compile-tested on: ramips/mt7621
Runtime-tested on: ramips/mt7621

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2021-07-19 22:47:17 +02:00

42 lines
1.2 KiB
Diff

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]
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
@@ -940,8 +940,10 @@ 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')
@@ -958,8 +960,14 @@ char *symbol_string(char *buf, char *end
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 = {