[Crash-utility] [PATCH 0/3] ikconfig and load module helper patches.

Declare get_kernel_config(), load_module_symbols_helper() for crash outside extension users. CRASH_MODULE_PATH valiable can apply to search non-standard module path from load_module_symbols_helper() and "mod" command. - get_kernel_config("config name", &val) Return one of target kernel configurations. If val == NULL, return value is poinited whether config is valid or not. IKCONFIG_N: kernel config is not set (not valid). IKCONFIG_Y: kernel config is set y (valid). IKCONFIG_M: kernel config is set m (valid). IKCONFIG_STR: kernel config is values or strings, etc (valid). "help -k" can display ikconfig setup state, number of valid ikconfig entries, function calls. Notes: 1. How to activate get_kernel_config(). read_in_kernel_config(IKCFG_SETUP) -> get_kernel_config() become active. read_in_kernel_config(IKCFG_FREE) -> get_kernel_config() become iniactive. 2. This function require CONFIG_IKCONFIG=y. Otherwise user is warned. Functional change from previous one. "config name" can be allowed both with or without CONFIG_ prefix strings. [ Dave's recommendation ] - load_module_symbols_helper("module name") Load specified kernel module symbols with argument. This is simplified usage from original load_module_symbols(). Add "CRASH_MODULE_PATH" valiable which can use to resolve non-standard module path. Functional change from previous one. "CRASH_MODULE_PATH" could be used by the "mod -s" command as well. [ Dave's recommendation ] Example usage: < in .crashrc > mod -s ext3 mod -s jbd : : export CRASH_MODULE_PATH="your module's root directory" /usr/sbin/crash Even if target kernel is changed, crash will load appropriate ext3 or jbd modules by this valiable. Toshikazu Nakayama (3): new ikconfig API. dump_kernel_table() load_module_symbols_helper(). crash-5.1.1/defs.h | 14 +++++ crash-5.1.1/kernel.c | 148 ++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 162 insertions(+), 0 deletions(-) -- 1.7.4.rc2.3.g60a2e