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| author | Anders Kaseorg <andersk@mit.edu> | 2008-12-05 19:03:58 -0500 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2009-03-31 13:05:32 +1030 |
| commit | 75a66614db21007bcc8c37f9c5d5b922981387b9 (patch) | |
| tree | d02c905a3aee02ec25ce38700f47d0fa57d2cbf7 /kernel/module.c | |
| parent | a6e6abd575fcbe6572ebc7a70ad616406d206fa8 (diff) | |
| download | lwn-75a66614db21007bcc8c37f9c5d5b922981387b9.tar.gz lwn-75a66614db21007bcc8c37f9c5d5b922981387b9.zip | |
Ksplice: Add functions for walking kallsyms symbols
Impact: New API
kallsyms_lookup_name only returns the first match that it finds. Ksplice
needs information about all symbols with a given name in order to correctly
resolve local symbols.
kallsyms_on_each_symbol provides a generic mechanism for iterating over the
kallsyms table.
Cc: Jeff Arnold <jbarnold@mit.edu>
Cc: Tim Abbott <tabbott@mit.edu>
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'kernel/module.c')
| -rw-r--r-- | kernel/module.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/kernel/module.c b/kernel/module.c index 8ddca629e079..dd4389be9152 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2612,6 +2612,25 @@ unsigned long module_kallsyms_lookup_name(const char *name) preempt_enable(); return ret; } + +int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *, + struct module *, unsigned long), + void *data) +{ + struct module *mod; + unsigned int i; + int ret; + + list_for_each_entry(mod, &modules, list) { + for (i = 0; i < mod->num_symtab; i++) { + ret = fn(data, mod->strtab + mod->symtab[i].st_name, + mod, mod->symtab[i].st_value); + if (ret != 0) + return ret; + } + } + return 0; +} #endif /* CONFIG_KALLSYMS */ static char *module_flags(struct module *mod, char *buf) |