diff options
Diffstat (limited to 'target/linux/generic/pending-4.14/205-backtrace_module_info.patch')
| -rw-r--r-- | target/linux/generic/pending-4.14/205-backtrace_module_info.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/target/linux/generic/pending-4.14/205-backtrace_module_info.patch b/target/linux/generic/pending-4.14/205-backtrace_module_info.patch new file mode 100644 index 0000000..4040f91 --- /dev/null +++ b/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] + +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 |