diff options
Diffstat (limited to 'nixos/modules/kernel-patches/0037-kernel-when-KALLSYMS-is-disabled-print-module-addres.patch')
-rw-r--r-- | nixos/modules/kernel-patches/0037-kernel-when-KALLSYMS-is-disabled-print-module-addres.patch | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/nixos/modules/kernel-patches/0037-kernel-when-KALLSYMS-is-disabled-print-module-addres.patch b/nixos/modules/kernel-patches/0037-kernel-when-KALLSYMS-is-disabled-print-module-addres.patch new file mode 100644 index 0000000..27cebc9 --- /dev/null +++ b/nixos/modules/kernel-patches/0037-kernel-when-KALLSYMS-is-disabled-print-module-addres.patch @@ -0,0 +1,49 @@ +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 + |