Commit Graph

15 Commits

Author SHA1 Message Date
Ingo Weinhold
94830eb226 * Moved most code of the heavy elf.cpp into several smaller source files.
* Some style cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30808 a95241bf-73f2-0310-859d-f6bbb57e9c96
2009-05-21 00:57:46 +00:00
Ingo Weinhold
80ece78534 Added private get_image_symbol_etc() that can recursively search for a symbol
(similar to how dlsym() works).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29356 a95241bf-73f2-0310-859d-f6bbb57e9c96
2009-02-28 18:50:40 +00:00
Ingo Weinhold
0c85bd054e * Reworked undefined symbol resolution in the runtime loader. Got rid of
the per-root-image breadth-first sorted image array. Instead we have a
  per-image hook function to resolve the symbols. The default function
  uses the sLoadedImages list directly, which is breadth-first sorted
  anyway. There's also a BeOS function for old-style symbol resolution
  and one for add-ons, which lacks a proper implementation yet (just
  uses old-style ATM).
* Made the dl*() functions POSIX compliant:
  - dlopen() does no longer use load_add_on(), but loads the object as a
    library. It also properly supports a NULL name, now -- the previous
    "_APP_" work-around did only work, if this soname was set on the
    program (unlikely for programs using this API).
  - Implemented RTLD_{GLOBAL,LOCAL}.
  - dlsym() looks up symbols properly now, i.e. not just in the given
    image, but breadth-first for an actual image or in load order for
    the global scope. It also supports the not-quite POSIX RTLD_DEFAULT
    and RTLD_NEXT extensions. Our RTLD_NEXT finds more symbols than in
    Linux (also in later dlopen()ed libraries), but that should be fine.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28568 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-11-08 22:40:56 +00:00
Axel Dörfler
9a6072a35f * Resolved TODO added by Ingo: the runtime loader now lazily updates its
image IDs when needed.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27611 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-09-18 08:04:29 +00:00
Ingo Weinhold
61b37794a4 Added explicit support for loading executables compiled with the
respectively other gcc version on a Haiku compiled with gcc 2 or gcc 4.
The libraries for such an executable are first searched in "gcc4"
respectively "gcc2" subdirectories of the standard search path
directories. If not found there, we try again with the standard paths.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25532 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-05-17 23:25:17 +00:00
Ingo Weinhold
8560d1885b * The runtime_loader's test_executable() no longer analyzes the
executable permissions of the file by hand. We use _kern_access()
  instead, which also handles the root case correctly.
* The user and group arguments of test_executable() aren't needed any
  longer.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24483 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-03-20 01:45:00 +00:00
Axel Dörfler
12a5e9a4a2 bonefish+axeld:
The runtime loader did not correctly resolve %A correctly with the
actual normalized program path. IOW it would not work correctly with
symlinks to applications that had their own lib directory.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23986 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-02-17 16:38:07 +00:00
Ingo Weinhold
1873b4b37e Give the runtime loader a chance to reinit its semaphore after fork().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21886 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-08-11 00:14:26 +00:00
Axel Dörfler
74c0424a43 * Added a mechanism to retrieve a BMessage with eventual error descriptions
for _kern_load_image().
* Added KMessage to the runtime_loader (a bit hacky, though) - it will use
  it to deliver the above mentioned functionality.
* load_dependencies() did return the wrong status code in case a library
  was missing; now it returns B_MISSING_LIBRARY.
* load_dependencies() will now try to load all dependencies when a report
  message is requested; therefore, all missing libraries are listed.
* Renamed uspace_program_args to user_space_program_args.
* The kernel filled in various members of the user_space_program_args structure
  unsafely, ie. was not using user_memcpy().
* Renamed some local variables in team.c to better fit our style guide (ie.
  uargs to userArgs).
* Changed Tracker to use the new _kern_load_image() variant on Haiku to retrieve
  and report all missing libraries. This fixes bug #1324.
* Adapted kernel_cpp.cpp to the runtime loader as well; the latter will now
  compile with _LOADER_MODE defined.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21715 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-07-27 02:32:19 +00:00
Ingo Weinhold
46f4d84912 * Got rid of sLoadingImages. It was always empty.
* The previous symbol resolution code was incorrect. It would search all
  loaded images in the order they had been loaded. Thus an add-on would
  possibly see a symbol of an earlier loaded add-on. Now we search
  recursively starting with the respective root image (executable or
  add-on).
* Added BeOS style symbol resolution and made it the default. A symbol
  undefined in an image is only searched in its direct dependencies.
  Fixes bug #889 (BeOS apps crashing under Haiku when opening a file
  panel).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21290 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-06-01 18:09:32 +00:00
Axel Dörfler
6f0994d460 * Switched to the boot loader's heap implementation.
* This sane heap revealed a bunch of bugs (like sLoadedImageCount not being
  maintained that was used for various allocations).
* If the allocation of the image fails, opening the app will now just fail
  instead of crashing of overwriting random data (IOW VLC will now load
  okay, but cannot load some of its add-ons anymore).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19045 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-10-11 16:02:43 +00:00
Axel Dörfler
7f4e6824df Added a private call to get the dependencies of a loaded image. This will be used
to determine linkage of libnet.so vs. libsocket.so/libbind.so in the libnetwork.so.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19008 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-10-06 11:40:20 +00:00
Axel Dörfler
0cd3c003d1 While investigating how our deals with doubled shared libs, I found two
issues:
* Our glue code was broken after all - it allowed Haiku apps to start under
  BeOS (and vice versa), but the initialization/termination functions were
  called with an invalid image ID - on *both* sides! As it turns out, the
  Be glue code did *something* with %ebx, but certainly didn't put the image
  ID in there, but just passed it on the stack, as we did before (just in
  the wrong order...). Therefore, the arch_call_init_term stuff is not
  necessary.
* When unloading add-ons, their termination functions were never called, as
  the image (for get_image_symbol()) was already made inaccessible, and
  therefore the symbol couldn't be found.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17928 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-06-26 22:09:13 +00:00
Axel Dörfler
9a6bbd514e Once libroot's getenv() is available, that one will be used instead of the one built in.
This makes the runtime_loader able to adopt path changes properly.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17380 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-05-08 23:50:09 +00:00
Axel Dörfler
76cd9b1961 Renamed runtime loader source files.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16935 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-30 16:29:53 +00:00