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module: __module_address

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Impact: New API, cleanup

ksplice wants to know the bounds of a module, not just the module text.

It makes sense to have __module_address.  We then implement
is_module_address and __module_text_address in terms of this (and
change is_module_text_address() to bool while we're at it).

Also, add proper kerneldoc for them all.

Cc: Anders Kaseorg <andersk@mit.edu>
Cc: Jeff Arnold <jbarnold@mit.edu>
Cc: Tim Abbott <tabbott@mit.edu>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2009-03-31 13:05:31 -06:00
parent 414fd31b25
commit e610499e26
2 changed files with 73 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

20
include/linux/module.h
View file

@ -365,7 +365,9 @@ static inline int module_is_live(struct module *mod)
/* Is this address in a module? (second is with no locks, for oops) */
struct module *module_text_address(unsigned long addr);
struct module *__module_text_address(unsigned long addr);
int is_module_address(unsigned long addr);
struct module *__module_address(unsigned long addr);
bool is_module_address(unsigned long addr);
bool is_module_text_address(unsigned long addr);
static inline int within_module_core(unsigned long addr, struct module *mod)
{
@ -494,21 +496,29 @@ search_module_extables(unsigned long addr)
return NULL;
}
/* Is this address in a module? */
static inline struct module *module_text_address(unsigned long addr)
{
return NULL;
}
/* Is this address in a module? (don't take a lock, we're oopsing) */
static inline struct module *__module_address(unsigned long addr)
{
return NULL;
}
static inline struct module *__module_text_address(unsigned long addr)
{
return NULL;
}
static inline int is_module_address(unsigned long addr)
static inline bool is_module_address(unsigned long addr)
{
return 0;
return false;
}
static inline bool is_module_text_address(unsigned long addr)
{
return false;
}
/* Get/put a kernel symbol (calls should be symmetric) */