4 Commits

Author SHA1 Message Date
1d98b287a4 mmap_cache: do not activate unless requested
Do not call mmap_cache functions until mmap_cache_enable is invoked.
Change struct mmap_cache_t into a proxy structure, move all mmap_cache
data from struct tcb inside this new structure.

* Makefile.am (strace_SOURCES): Move mmap_cache.c and mmap_cache.h
to libstrace_a_SOURCES.
* defs.h (struct tcb): Remove mmap_cache_size and mmap_cache_generation
* fields.
* mmap_cache.h (struct mmap_cache_t): Rename
to struct mmap_cache_entry_t, create a new struct mmap_cache_t,
all users updated.
(mmap_cache_delete): Remove.
* mmap_cache.c (mmap_cache_delete): Rename to delete_mmap_cache,
add static qualifier.
(build_mmap_cache): Merge into mmap_cache_rebuild_if_invalid.
* strace.c (droptcb): Replace mmap_cache_delete invocation
with tcp->mmap_cache->free_fn.
2018-05-04 14:45:44 +00:00
a1ecb2a51c mmap_cache: remove mmap_cache_is_enabled
This function is no longer used and could be removed.

* mmap_cache.c (mmap_cache_is_enabled): Remove.
* mmap_cache.h: Likewise.
2018-05-03 23:43:38 +00:00
Masatake YAMATO
af7038665c mmap_cache: use the mmap_notify subsystem
* mmap_cache.c: Include mmap_notify.h.
(mmap_cache_enable): Call mmap_notify_register_client to use
the mmap_notify subsystem, mmap_cache_invalidate is specified
to handle the change of memory mapping.
(mmap_cache_invalidate): Add static qualifier.
* mmap_cache.h (mmap_cache_invalidate): Remove.
* syscall.c: Include mmap_notify.h instead of mmap_cache.h.
(syscall_exiting_decode): Call mmap_notify_report instead
of mmap_cache_invalidate.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
2018-05-03 22:01:30 +00:00
bbeee0be62 Introduce mmap_cache.h
Let's avoid bloating defs.h and introduce a separate header for
mmap_cache.

* defs.h (struct mmap_cache_t, enum mmap_cache_protection,
enum mmap_cache_rebuild_result, mmap_cache_enable, mmap_cache_is_enabled,
mmap_cache_invalidate, mmap_cache_delete, mmap_cache_rebuild_if_invalid,
mmap_cache_search): Move ...
* mmap_cache.h: ... to this new file.
* Makefile.am (strace_SOURCES): Add mmap_cache.h.
* mmap_cache.c: Include mmap_cache.h.
* strace.c: Likewise.
* syscall.c: Likewise.
* unwind.c: Likewise.
2018-02-26 23:22:24 +00:00