dlopen()ed objects was incorrect. This should fix problems with ports of
software with a plugin/add-on interface.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29112 a95241bf-73f2-0310-859d-f6bbb57e9c96
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
can export a structure containing callback hooks invoked by the
runtime loader when certain image events occur (image loaded,
relocated, initialized, etc.).
* Also added a mechanism to patch image symbols. For an image callback
functions can be installed that patch symbols exported or imported by
the image.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28475 a95241bf-73f2-0310-859d-f6bbb57e9c96
add-on) we create a breadth-first sorted image list and use that to
search for symbols.
* Added support for preloading libraries. The environment variable
LD_PRELOAD can contain a whitespace-separated list of shared objects
that will be loaded before the program. This allows to replace
symbols without changing the executable or libraries.
* Resolved TODO in load_program() regarding the order of remapping the
images and initializing the dependencies (problem fixed in r28453).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28455 a95241bf-73f2-0310-859d-f6bbb57e9c96
matches the program's image name. This is a special case for add-ons
that link against the application, with the application not having a
soname set. The concerned Pe add-ons (HeaderHeader and others) work now.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28294 a95241bf-73f2-0310-859d-f6bbb57e9c96
in struct stat.
* Instead, I followed Marcus' great idea and added a compatibility check in
the runtime loader: now, R5 binaries (also shared libraries) are detected,
and they get special versions for stat(), fstat(), and lstat() that return
the smaller stat struct.
* However, I've disabled (in src/system/libroot/posix/sys/stat.c) using the
larger stat field for now, as this breaks some of our optional packages.
So until we rebuild them all, this shouldn't be enabled.
* This should now also be used for BeOS compatibility in libnetwork.so.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27961 a95241bf-73f2-0310-859d-f6bbb57e9c96
* memset() is now available through the commpage.
* CPU modules can provide a model-optimized memset().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27952 a95241bf-73f2-0310-859d-f6bbb57e9c96
subdirectories. Also moved the x86 kernel arch_string.S there.
* Moved memcpy.c from src/system/libroot/posix/string into the
arch/generic subdirectory.
* Dealt with the consequences of moving things around. Affected are also
the boot loader and runtime loader builds.
Adjust the m68k and ppc parts, too, but only the x86 build is tested.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27947 a95241bf-73f2-0310-859d-f6bbb57e9c96
* get_nth_symbol() did not correctly iterate over the symbol hash, causing it
to return the same symbols more than once, and omit others.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27896 a95241bf-73f2-0310-859d-f6bbb57e9c96
a flattened argument/environment buffer now. This simplifies the work
for the kernel a bit, since it can just copy the buffer and check
whether it looks OK instead of messing around with individual strings.
The runtime loader also gets a flattened array.
* Set the maximum size of the arguments/environment buffer to 128 KB.
When more arguments are passed, we fail with a proper error code
(instead of just truncating the arguments as before).
* On exec*() the first argument was silently replaced by the given path
name, which is not correct.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26119 a95241bf-73f2-0310-859d-f6bbb57e9c96
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
to contain headers shared by kernel and userland (mainly libroot).
* Moved quite a few private kernel headers to the new location. Split
several kernel headers into a shared part and one that is still kernel
private. Adjusted all affected Jamfiles and source in the standard x86
build accordingly. The build for other architectures and for test code
may be broken.
* Quite a bit of userland code still includes private kernel headers.
Mostly those are <util/*> headers. The ones that aren't strictly
kernel-only should be moved to some other place (maybe
headers/private/shared/util).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25486 a95241bf-73f2-0310-859d-f6bbb57e9c96
prints to stdout, but only until the program and its dependencies are
loaded. Failed attempts to load add-ons and the like doesn't pollute
stdout anymore.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25437 a95241bf-73f2-0310-859d-f6bbb57e9c96
defined/undefined to numeric values (0 for undefined). This allows for
trace levels.
* Set SYSCALL_TRACING_IGNORE_KTRACE_OUTPUT default to 1, since this is
what one usually wants.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25213 a95241bf-73f2-0310-859d-f6bbb57e9c96
library, and add-on search paths. Can be removed again, when certain
optional packages have been moved to /boot/common.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25194 a95241bf-73f2-0310-859d-f6bbb57e9c96
and defines the macros needed by them.
* Renamed syscall sys_vm_map_file() to _kern_map_file() and changed the
path to an FD parameter. Changed vm_map_file() accordingly and
adjusted the kernel ELF loader and the runtime loader.
* Added syscall _kern_unmap_memory().
* Added bool unmapAddressRange parameter to vm_create_anonymous_area()
and map_backing_store(). If true and the address specification is
B_EXACT_ADDRESS, all areas in the specified address range will be
deleted (unless an area is covered only partially).
* Introduced B_SHARED_AREA flag, which is set on areas that have been
created by {vm,_user}_map_file() with REGION_NO_PRIVATE_MAP. When
fork()ing those areas won't be copied CoW, but rather be cloned. This
is needed for mmap() MAP_SHARED.
* {vm,_user}_map_file() also accept an FD argument < 0, in which case an
anonymous area is created.
* Implemented mmap() and munmap(). Currently there's the restriction
that we can't partially unmap areas. Otherwise the functions should be
rather compliant. We also support the non-POSIX extension
MAP_ANONYMOUS.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24964 a95241bf-73f2-0310-859d-f6bbb57e9c96
finally created a solution to avoid that: Header files that contain
configuration settings (and nothing else) go to build/config_headers.
To change settings, create a directory build/user_config_headers (which
is ignored by svn), copy the respective header there and modify it at
your leisure. Currently only tracing_config.h has been moved to the new
location, but more files will follow eventually. It is also recommended
to move optional macro definitions in Jamfile (as for BFS) to a config
header instead; the build system will then automatically rebuild on
changes.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24611 a95241bf-73f2-0310-859d-f6bbb57e9c96
depending on the gcc version of the executable.
* Adjusted non-BeOS-style symbol resolution so that add-ons and
dynamically loaded libraries find symbols in the executable.
This change re-enables support for undefined symbols.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24537 a95241bf-73f2-0310-859d-f6bbb57e9c96
shared object to find out the GCC version it has been compiled with.
This is not an exact science, since we've got the version string for
every single object file that has been linked in, but my heuristic seems
to be good enough.
Having the gcc version at hand will allow for two features: Enabling
work-arounds for old executables (like the type info problem in BeOS
apps), and automatically selecting the right set of libraries in a mixed
gcc 2/gcc 4 environment.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24534 a95241bf-73f2-0310-859d-f6bbb57e9c96
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
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
Adjusted PATH, LIBRARY_PATH, and the paths built into the runtime loader
to included the /boot/common tree.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23974 a95241bf-73f2-0310-859d-f6bbb57e9c96
some absolute path was not enough to always recognize a library as
already loaded. This fixes problems with Perl where loading an add-on
would cause another instance of libperl.so to be loaded, which would
lead to crashes due to uninitialized static vars in the new instance.
Perl builds now and the tests run, but quite a few do fail.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23930 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Fixed wrong start and size used in the runtime_loader
* Fixed off by one error in the matching loop of the cleanup hook
* Make sure we successfully acquire the locking sem of the exit stack
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23493 a95241bf-73f2-0310-859d-f6bbb57e9c96
As (our) gcc unfortunately uses atexit() to clean up lazily initialized static
variables inside functions we have to ensure that we do the right thing with
unloadable shared objects. In case a shared object was unloaded that installed
an atexit() hook the application would crash on exit. We now implement a
callback into libroot that is used to call all the atexit() hooks of a
component that is to be unloaded. Most prominently this fixes the media_server
crash at shutdown.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23486 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Changed ResAttr rule to allow not deleting the file before writing the
attributes.
* Added application signatures for the runtime_loader and zbeos, just so that
they may have an icon, too (hint, hint) :-)
* As a side effect, this also let's FileTypes handle these two as apps (even
though they aren't), so that I can close bug #606.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22412 a95241bf-73f2-0310-859d-f6bbb57e9c96
pointer - which it now handles gracefully.
* This also fixes starting the runtime loader directly: it no longer crashes
but will just return an error.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22409 a95241bf-73f2-0310-859d-f6bbb57e9c96
therefore, we could remove the ugly defines from KMessage again, and compile it
with KMESSAGE_CONTAINER_ONLY.
* Added KMessage::SetDeliveryInfo() to be able to send messages with a correct
header.
* Fixed a bug in KMessage::SendTo() that would not send the senderTeam when passing
a negative value for the parameter, but override it when passing in a valid
value.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21740 a95241bf-73f2-0310-859d-f6bbb57e9c96
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
