diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-03 17:34:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-03 17:34:41 -0700 |
| commit | 30a39e0e97f948e3ac8eeacd54d09f4bbfbab64b (patch) | |
| tree | ed7095cbce6a1d6e178ddd12a209004ca439ee1b /kernel | |
| parent | c7edad5fcb86c4398f9ab2ccea82ddcc067b88af (diff) | |
| parent | 4a44bac1f98223ed77e47bf3b42fcfd10cddd85f (diff) | |
Merge branch 'stacktrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'stacktrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
symbols, stacktrace: look up init symbols after module symbols
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/extable.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/kernel/extable.c b/kernel/extable.c index e136ed8d82ba..c46da6a47036 100644 --- a/kernel/extable.c +++ b/kernel/extable.c @@ -41,6 +41,14 @@ const struct exception_table_entry *search_exception_tables(unsigned long addr) return e; } +static inline int init_kernel_text(unsigned long addr) +{ + if (addr >= (unsigned long)_sinittext && + addr <= (unsigned long)_einittext) + return 1; + return 0; +} + __notrace_funcgraph int core_kernel_text(unsigned long addr) { if (addr >= (unsigned long)_stext && @@ -48,8 +56,7 @@ __notrace_funcgraph int core_kernel_text(unsigned long addr) return 1; if (system_state == SYSTEM_BOOTING && - addr >= (unsigned long)_sinittext && - addr <= (unsigned long)_einittext) + init_kernel_text(addr)) return 1; return 0; } @@ -58,7 +65,19 @@ __notrace_funcgraph int __kernel_text_address(unsigned long addr) { if (core_kernel_text(addr)) return 1; - return __module_text_address(addr) != NULL; + if (__module_text_address(addr)) + return 1; + /* + * There might be init symbols in saved stacktraces. + * Give those symbols a chance to be printed in + * backtraces (such as lockdep traces). + * + * Since we are after the module-symbols check, there's + * no danger of address overlap: + */ + if (init_kernel_text(addr)) + return 1; + return 0; } int kernel_text_address(unsigned long addr) |