| 0a3637d3eb2424d8e825ad1825f843450a888406 |
|
06-Jul-2016 |
Evgenii Stepanov <eugenis@google.com> |
Runtime support for CFI
Control Flow Integrity support in bionic.
General design:
http://clang.llvm.org/docs/ControlFlowIntegrityDesign.html#shared-library-support
This CL implements subsections "CFI Shadow" and "CFI_SlowPath" in the above document.
Bug: 22033465
Test: bionic device tests
Change-Id: I14dfea630de468eb5620e7f55f92b1397ba06217
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| 5e071a18ce88d93fcffaebb9e0f62524ae504908 |
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12-Aug-2016 |
Elliott Hughes <enh@google.com> |
dlerror returns char*, not const char*.
http://pubs.opengroup.org/onlinepubs/9699919799/functions/dlerror.html:
char *dlerror(void);
...
The application shall not modify the string returned.
Change-Id: I5e684bfd3930c39a2a30ea6fd005a5d5d3e5b181
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| 5470c183611737af5ec954984e4bdb5da8c99b73 |
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22-Jul-2016 |
Elliott Hughes <enh@google.com> |
Make it possible to build bionic with -I instead of -isystem.
Various things:
* work around -Wnullability-completeness.
* use C++ casts in C++ and C casts in C.
* stop using attributes clang doesn't support (such as `warning`).
* remove duplicate definitions of XATTR_CREATE and XATTR_REPLACE.
Change-Id: I07649e46275b28a23ca477deea119fe843999533
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| baa2a973bd776a51bb05a8590ab05d86eea7b321 |
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14-Aug-2015 |
Dan Albert <danalbert@google.com> |
Use clang's nullability instead of nonnull.
http://clang.llvm.org/docs/AttributeReference.html#nonnull
_Nonnull is similar to the nonnull attribute in that it will instruct
compilers to warn the user if it can prove that a null argument is
being passed. Unlike the nonnull attribute, this annotation indicated
that a value *should not* be null, not that it *cannot* be null, or
even that the behavior is undefined. The important distinction is that
the optimizer will perform surprising optimizations like the
following:
void foo(void*) __attribute__(nonnull, 1);
int bar(int* p) {
foo(p);
// The following null check will be elided because nonnull
// attribute means that, since we call foo with p, p can be
// assumed to not be null. Thus this will crash if we are called
// with a null pointer.
if (src != NULL) {
return *p;
}
return 0;
}
int main() {
return bar(NULL);
}
Note that by doing this we are no longer attaching any sort of
attribute for GCC (GCC doesn't support attaching nonnull directly to a
parameter, only to the function and naming the arguments
positionally). This means we won't be getting a warning for this case
from GCC any more. People that listen to warnings tend to use clang
anyway, and we're quickly moving toward that as the default, so this
seems to be an acceptable tradeoff.
Change-Id: Ie05fe7cec2f19a082c1defb303f82bcf9241b88d
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| 14adff1cfa06a3d4d3281a9bf7848b556d84c20d |
|
29-Apr-2016 |
Josh Gao <jmgao@google.com> |
Add versioning information to symbols.
Bug: http://b/28178111
Change-Id: I46bf95accd819f4521afb1173d8badcc5e9df31c
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| 9cf99cbad89c8495828788ce693a99ced434f66f |
|
11-Dec-2015 |
Dimitry Ivanov <dimitry@google.com> |
linker: add dlvsym(3)
This changes implements dlvsym - dlsym for versioned symbols.
Bug: http://b/22865643
Change-Id: Ic90a60d512104261a1416c43f9100f0d88e3b46f
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| 7ca96a075b778f1fa2ad265350879238cbcb4d09 |
|
04-Nov-2014 |
Dmitriy Ivanov <dimitry@google.com> |
Revert "Revert "Add RTLD_NODELETE flag support""
This reverts commit 69c5d108a5cb44167a04d42ffdad6a39648ed235.
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| 69c5d108a5cb44167a04d42ffdad6a39648ed235 |
|
04-Nov-2014 |
Dmitriy Ivanov <dimitry@google.com> |
Revert "Add RTLD_NODELETE flag support"
This reverts commit c87f65d2cd0690d81665f8b241c1d763f72b6f80.
Bug: 18222321
Bug: 18211780
Change-Id: I00252e26a28a41ab9f1e2dd3b32f0f80d86297f1
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| c87f65d2cd0690d81665f8b241c1d763f72b6f80 |
|
20-May-2014 |
Dmitriy Ivanov <dimitry@google.com> |
Add RTLD_NODELETE flag support
Bug: 18186310
Bug: https://code.google.com/p/android/issues/detail?id=64069
(cherry picked from commit 1b20dafdbe65e43b9f4c95057e8482380833ea91)
Change-Id: Ic02eec22a7c322ece65eb40730a3404f611526b1
|
| 1b20dafdbe65e43b9f4c95057e8482380833ea91 |
|
20-May-2014 |
Dmitriy Ivanov <dimitry@google.com> |
Add RTLD_NODELETE flag support
Bug: https://code.google.com/p/android/issues/detail?id=64069
Change-Id: Ie5f90482feae86391172be4b32d6cb7d76f446fb
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| b648a8a57ee42533a5bf127225a252f73ca2cbbc |
|
20-May-2014 |
Dmitriy Ivanov <dimitry@google.com> |
Add RTLD_NOLOAD support and some related changes.
* Aligned RTLD_ values with glibc for lp64
* dlopen supports RTLD_NOLOAD flag
* soinfo_unload calls find_library(.., RTLD_NOLOAD)
instead of naive find_loaded_library_by_name()
* dlopen changed to add child to caller soinfo instead
of somain.
Bug: https://code.google.com/p/android/issues/detail?id=64069
Change-Id: I1a65f2c34f3e0edc6d2c41a2e408b58195feb640
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| bda5da074eab4bdf374e1f4a19d480c62c72f5ff |
|
28-Sep-2011 |
Mathias Agopian <mathias@google.com> |
fix prototype of dladdr
this breaks C++ source code in particular.
Change-Id: Ie06b5d31d23b5455e6950c470adc64dd5e7784df
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| e2a8b1fd19fb3a8ead2ba28ddba27be19fa978b5 |
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31-Dec-2009 |
Matt Fischer <matt.fischer@garmin.com> |
Added support for dladdr()
dladdr() is a GNU extension function, which allows the caller to retrieve
symbol information for a specified memory address. It is useful for things
like generating backtrace information at runtime.
Change-Id: I3a1def1a6c9c666d93e1e97b7d260dfa5b9b79a9
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| 1dc9e472e19acfe6dc7f41e429236e7eef7ceda1 |
|
04-Mar-2009 |
The Android Open Source Project <initial-contribution@android.com> |
auto import from //depot/cupcake/@135843
|
| 1767f908af327fa388b1c66883760ad851267013 |
|
04-Mar-2009 |
The Android Open Source Project <initial-contribution@android.com> |
auto import from //depot/cupcake/@135843
|
| a27d2baa0c1a2ec70f47ea9199b1dd6762c8a349 |
|
21-Oct-2008 |
The Android Open Source Project <initial-contribution@android.com> |
Initial Contribution
|