Commit Graph

13 Commits

Author SHA1 Message Date
Elliott Hughes
c620059479 Remove 32-bit assumptions from the ELF code.
Change-Id: I2c1f3d34c33685799aade8866eec44479ff9f963
2013-09-30 18:43:46 -07:00
Christopher Ferris
24053a461e Add the dl_iterate_phdr function to libdl for arm.
Bug: 8410085

Merge from internal master.

(cherry-picked from cb491bc66d)

Change-Id: I94ed51bc5d4c626df7552c0e85c31ccee2d6568f
2013-09-06 09:53:54 -07:00
Elliott Hughes
ca0c11bd82 Use more types than just 'unsigned' in the linker.
Still chipping away at the situation where every variable in the
linker was of type 'unsigned'. This patch switches counts over to
being size_t and adds an explicit type for init/fini function pointers
and arrays of function pointers.

Also improve logging from CallArray.

Also remove trailing "\n"s from log messages.

Change-Id: Ie036d2622caac50f4d29f0570888bb527661d77e
2013-03-12 11:26:56 -07:00
Elliott Hughes
650be4e584 More linker cleanup.
Change-Id: I9fb3c7c0d4b4ffef0eeaf092d4e30ffe63a08671
2013-03-05 22:24:34 -08:00
Brian Carlstrom
d4ee82dfa3 Minor linker cleanup, primarily to use Elf32_Dyn
Change-Id: Ifa9408e9859c6f79444715bed4808b7c13fdced5
2013-03-05 15:27:21 -08:00
Elliott Hughes
cade4c36e7 Support System.loadLibrary for libraries with transitive dependencies.
Also fix the FLAG_ERROR annoyance --- it's not helpful to cache failures.

Bug: 7896159
Bug: http://code.google.com/p/android/issues/detail?id=34416
Bug: http://code.google.com/p/android/issues/detail?id=22143
Change-Id: I60f235edb4ea4756e1f7ce56f7739f18e8a50789
2012-12-20 14:42:14 -08:00
Elliott Hughes
e66190d2a9 Check for unknown flags passed to dlopen(3).
Change-Id: I56f4aab0e5a1487bc32d2c4d231e8bd15c4ac8da
2012-12-18 15:57:55 -08:00
Elliott Hughes
d23736e4f2 Keep the dynamic linker's soinfo pools mostly read-only.
We'll need a lot more refactoring of this code before we can reduce
the granularity, but this is a step forward.

Change-Id: I07061720e734b571a8399c1d5b4f2f35cd681307
2012-11-01 16:48:14 -07:00
Ard Biesheuvel
5ae44f302b linker: handle R_ARM_COPY relocations in a proper way
If an executable contain copy relocations, other references
to the symbol it points to should be preempted and made to
point to the copy instead.

Also, the linker should make sure the target area has
sufficient space to contain the copy. It also checks
whether the library that supplies the symbol is built
with -Bsymbolic, and errors out if this is the case.

Change-Id: If135c83590092741cfd8f82f54816f363a4a4a3b
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@gmail.com>
2012-10-30 17:09:21 -07:00
Pavel Chupin
20aa6c0f4c Workaround g++ 4.7 compfail
error: C99 designator 'name' outside aggregate initializer

G++ 4.7+ can't handle some of C99 designated initializers.
Most likely it's just not implemented yet. Other possible workarounds is
to compile this as C not C++ or define name as char* instead of char[SIZE].

Appeared after this change https://android-review.googlesource.com/#/c/44470

Change-Id: Ib28157848ce759b8bb5dbb2ac0d9a768fa4e5107
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
2012-10-25 17:58:45 +04:00
Elliott Hughes
5419b94747 Make dlerror(3) thread-safe.
I gave up trying to use the usual thread-local buffer idiom; calls to
calloc(3) and free(3) from any of the "dl" functions -- which live in
the dynamic linker -- end up resolving to the dynamic linker's stubs.
I tried to work around that, but was just making things more complicated.
This alternative costs us a well-known TLS slot (instead of the
dynamically-allocated TLS slot we'd have used otherwise, so no difference
there), plus an extra buffer inside every pthread_internal_t.

Bug: 5404023
Change-Id: Ie9614edd05b6d1eeaf7bf9172792d616c6361767
2012-10-16 17:58:17 -07:00
Elliott Hughes
22d629211d Make the dlfcn mutex static.
More style fixes too, and removal of yet another lingering SH reference!

Change-Id: Iebc34a46475dd11845ad172b9108bb6ddd7585bb
2012-10-12 10:50:21 -07:00
Elliott Hughes
3b297c4079 Fix dlerror(3).
Add unit tests for dlerror(3) in various situations. I think We're at least
as good as glibc now.

Also factor out the ScopedPthreadMutexLock and use it here too.

Bug: http://code.google.com/p/android/issues/detail?id=38398
Change-Id: I040938b4366ab836e3df46d1d8055b92f4ea6ed8
2012-10-11 16:08:51 -07:00