If a public library is missing, make it clear that there is no
library with that soname that is missing. This can help diagnose
problems if a library exists, but the library doesn't have the right
soname.
Bug: 29400363
(cherry picked from commit 9a84d90c75)
Change-Id: Ie2306a2e28aff779d07441dc8af078256b184f8a
create_namespace resolves caller namespace only
when caller did not explicitly specify parent namespace.
This saves about 25 microseconds for the case when
parent_namepsace is not null (for example when creating
second classloader for the app).
Bug: http://b/28801010
Change-Id: I50ded272c931db701e5a1d8c88ed5ffb13416539
This operation is the most expensive one and since it is
unlikely that the zip-entry name is invalid (given that it
is constructed by the platform) - it can removed.
The worst case scenario is dlopen() of non-existing libraries
taking more time. And this use-case is not on the critical path.
Bug: http://b/28801010
Change-Id: I10a6b0bf342404ab72f0f5102ebf19f6c06ee6bf
(cherry picked from commit a5c1c8e820)
This CL adds initialization of inode for the main executable
which enables linker to resolve the correct soinfo when
application calls dlopen with absolute path to the
main executable.
Bug: http://b/28420266
Change-Id: I102e07bde454bd44c6e46075e3faeeb5092830d8
This change enables apps to share libraries opened
with RTLD_GLOBAL between different classloader namespaces.
The new parameter to create_namespace allows native_loader
to instruct the linker to share libraries belonging to
global group from a specified namespace instead of
using the caller_ns.
Bug: http://b/28560538
Bug: https://code.google.com/p/android/issues/detail?id=208458
Change-Id: I5d0c62730bbed19cdeb16c7559c74aa262a2475f
Also clean up some near-miss copyright headers in libm, and remove
some cruft in <grp.h>/<pwd.h> that the script can't automatically
ignore since we stripped all the tabs in those files.
Change-Id: I10796c54dda1ceba87822ae0de26b5d71b54972b
They are intended for platform use only and we shouldn't have them
in the public header file.
Bug: http://b/28174921
Change-Id: Ib9b3d0fa9442cfa2e784a693ad567d1444d774e5
Linker crashed if linking of the main executable fails
instead of aborting with readable error message.
This patch modifies unload to soinfo_unload it all at once
in this particular case. This helps avoid situations when
one of the libraries on the DT_NEEDED list of main executable
has gotten unloaded by previous library unload because it
DT_NEEDED it too.
Example (consider following dependency tree):
main_executable
|-> liba.so
|-> libb.so
|-> libb.so
The list of the libraries need to be unloaded in this case
is [liba.so, libb.so], but if linker does unload one by one
by the time it gets to libb.so - the soinfo for the library
is already unloaded (and the segments were unmapped).
Passing everything as an array helps soinfo_unload to check
if a library was already unloaded by looking into local_unload_list.
Bug: http://b/28565608
Change-Id: I7199290e10a186057dcf3b7b68dbce954af7dba1
linker didn't remove link to the soinfo from shared
namespaces on soinfo_unload, because it didn't keep
record of all namespaces the library is added to.
This change adds test for this and also fixes the
problem by introducing list of secondary namespaces
to soinfo, which is used to remove soinfo in
soinfo::remove_all_links().
Bug: http://b/28115950
Change-Id: Ifbf6e54f92fa6e88f86b6a8dd6dc22d4553afd22
linker doesn't call d-tors for RTLD_NODELETE libraries. There is
no need in reseting this flag in call_destructors (which is called
from soinfo_unload).
Change-Id: I3ed03fa7207b7acf598067276fbb8874e29b5e53
Linker was not unloading libraries marked with RTLD_NODELETE
even when there was a error on load. For example when one of
dt_needed libraries was not found.
Bug: http://b/27911891
Change-Id: Ibc0bf110aa41fbfdc9f327ad8c364f2e3600af71
(cherry picked from commit 79abce4214)
Add missing test for sleb128_decoder. Also remove
dependency to static library because it exposes malloc/free
which interfere with libc.so malloc/free causing test to crash.
Change-Id: Iedd3268011df9f67ed58c0b58c71f34e30370b23
Handle no longer is a pointer to soinfo of
a corresponding library. This is done to
prevent access to linker internal fields.
Bug: http://b/25593965
Change-Id: I62bff0d0e5b2dc842e6bf0babb30fcc4c000be24
This patch uses __kernel_vsyscall instead of "int 0x80"
as the syscall entry point. AT_SYSINFO points to
an adapter to mask the arch specific difference and gives a
performance boost on i386 architecture.
Change-ID: Ib340c604d02c6c25714a95793737e3cfdc3fc5d7
Signed-off-by: Mingwei Shi <mingwei.shi@intel.com>
This reverts commit 0acb15ead6.
This workaround is not needed any more. Now ART generates
.MIPS.abiflags segments in its files. This is done in
Ie06a3c4e384a23a77db7d04a2508edbf3a6d3933.
Change-Id: I746289eed443a0fdbe8fd0b1199bcc5cd4d024e1
The previous code assumed that returning would be sufficient to rethrow
signals like SIGSEGV. This is not true, for example, in the case where a
SIGSEGV is sent via kill(2). We were previously only sending the signal
to ourselves in some cases, because using kill(2) would lose information
in the siginfo_t argument. Use rt_tgsigqueueinfo(2) instead to preserve
its contents.
Bug: http://b/27367422
Change-Id: I1be822818d5905461979c7e12dc4e9c25049273b
Print properties of the namespace on "library is not accessible"
error to better diagnose problems with native library accessiblity
Bug: http://b/27406143
Change-Id: Icf3d6c604f09dfa015de863fdb1267d343930d2a
(cherry picked from commit 350bdad61c)
This field is used only once and only for main executable;
no need to carry it around in soinfo structure.
Change-Id: I7f80c64e0939e28966b6fed858891f9ce2a9e26b
Small modifications needed to allow compilation with the new headers:
- Manually modify bionic/libc/kernel/uapi/asm-mips/asm/siginfo.h to
remove the uapi from the include.
- PR_XXX defines are now available for mips, so remove the definition
from linker_mips.cpp.
Bug: 23789423
Change-Id: I6dc8a03b012426d3a937db15cb24d3a50fab5a8c
Look into "/system/lib" before "/vendor/lib", this way
we can ensure that in case of name conflict /system libraries
take precedence.
Change-Id: Ifacdc9dc7a4e175853f499ed09782b2257f09e5a
dlclose used to unmap the part of the reserved region
for ANDROID_DLEXT_RESERVED_ADDRESS that was neccessary
to map PT_LOAD segments. With this change dlclose
replaces mapped PT_LOAD segments with a PROT_NONE,
MAP_ANONYMOUS | MAP_NORESERVE.
Previously caller was unmapping the reserved region after
the failed dlclose which led to race condition when someone
else reused the region freed by dlclose but before the unmap
by the chromium code.
Bug: http://code.google.com/p/chromium/issues/detail?id=568880
Change-Id: I0f5eaa2bf6641f83dde469b631c518482acc59a2
Exactly which functions get a stack protector is up to the compiler, so
let's separate the code that sets up the environment stack protection
requires and explicitly build it with -fno-stack-protector.
Bug: http://b/26276517
Change-Id: I8719e23ead1f1e81715c32c1335da868f68369b5
Also, we're not a debugger.
Also include LD_LIBRARY_PATH and LD_PRELOAD because they would have helped
diagnose a recent issue.
Change-Id: I7237a7236b7140ab49483c02efa705317d07bd3f
Shared namespaces clone the list of loaded native
libraries from the caller namespace. This allows
classloaders for bundled apps to share already loaded
libraries with default namespace.
Bug: http://b/22548808
Bug: http://b/26165097
Change-Id: I8949d45937fdb38e1f586ff0679003adac0d9dad
(cherry picked from commit e78deef364)
