In b238210c01, we added
-Wl,--warn-shared-textrel to TARGET_GLOBAL_LDFLAGS. This generated
a warning whenever we created a shared library with a text
relocation. At the time, we wrote:
=====
Emit a warning when the static linker detects a shared library
has text relocations. Text relocations make it harder to
share pages across processes, and make it harder to use
certain memory protection features in, for example, SELinux.
This warning will turn into an error in a future change
(via --fatal-warnings)
=====
All code which uses text relocations has either been fixed, or
we've temporarily worked around the issue so the code can still
compile.
Enable --fatal-warnings.
This reverts commit 4dc781657b.
Change-Id: I81b96477f1c11069637f28cfd8fb98d42b39be5e
In b238210c01, we added
-Wl,--warn-shared-textrel to TARGET_GLOBAL_LDFLAGS. This generated
a warning whenever we created a shared library with a text
relocation. At the time, we wrote:
=====
Emit a warning when the static linker detects a shared library
has text relocations. Text relocations make it harder to
share pages across processes, and make it harder to use
certain memory protection features in, for example, SELinux.
This warning will turn into an error in a future change
(via --fatal-warnings)
=====
We've successfully removed all text relocations from Android's
compiled code, so turn on -Wl,--fatal-warnings .
Some pre-compiled shared libraries continue to have text relocations,
but they will be unaffected by this change.
Change-Id: I505ea23120048afc45f62593704fe1d6d26a352c
Use "LOCAL_SDK_VERSION := <number>" to build against the NDK when you
include $(BUILD_EXECUTABLE).
Bug: 7170098
Change-Id: I4cebeae3355e79a4d2f2f5549ef0613ced77e3f0
Use "LOCAL_SDK_VERSION := <number>" to build against the NDK when you
include $(BUILD_EXECUTABLE).
Bug: 7170098
Change-Id: I4cebeae3355e79a4d2f2f5549ef0613ced77e3f0
Patch removes fallback -fuse-ld=bfd for x86 target and
--copy-dt-needed-entries which is not supported by gold linker.
Change-Id: Ie5603f98e3f2f9d4f81678c718e39b130a75d057
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
GCC 4.6 --version can return 4.6.x-google but also simply 4.6
as of https://android-review.googlesource.com/#/c/42028.
Add more pattern to detect it.
Change-Id: Ibf34fba9afdf01bd3eafc011cc4d059b59f25d3d
With these adjustments, cached object files can now be shared across
multiple Android trees on a single workstation:
* Compiler binary modification time no longer causes cache misses,
as a hash of the compiler binary is taken rather than looking
at the mtime and size
* Header file modification time no longer causes cache misses,
the headers are now always hashed
* Macros such as __DATE__ and __TIME__ no longer cause cache misses
* All paths in preprocessed source (due to use of -g) are now relative
These options require ccache 3.1 or later to be used; ccache 2.4 will
ignore these.
Change-Id: I7839637e9dacf7240bd9b7bfaa6406b1db423560
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Emit a warning when the static linker detects a shared library
has text relocations. Text relocations make it harder to
share pages across processes, and make it harder to use
certain memory protection features in, for example, SELinux.
This warning will turn into an error in a future change
(via --fatal-warnings)
References: http://www.akkadia.org/drepper/textrelocs.html
Change-Id: I3bc818e3ecdb8a4338668a9e816b6dc1081b7557
Bug: 6754632
So the warning won't show up when you run lunch.
Now the warning only shows when you do a clean build.
Change-Id: I7876da783f059d390f0072df37d3ab0291589eb7
Recover variable build_mac_version which is removed on
commit 644dc16 and added on commit 9ce06f1.
Without this, ranlib libSDL.a is executed on Lion which
causes build fail of emulator-arm.
Change-Id: I06144a288921f8f968ef457999398c1b9152d4aa
XCode 4.3 and later use a different location for SDKs. This check in
ensures the build checks for the new location as well as the old one.
Change-Id: I97884e5009f229f8b42e57a8feeb702b3a40a241
Signed-off-by: Al Sutton <al@funkyandroid.com>
Add additional compile and runtime buffer overflow detection to
Android. As of today, Android supports additional buffer overflow
detection for the following libc functions:
* memcpy
* memmove
* strcpy
* strcat
* strncpy
* strncat
Support for additional functions will be added to bionic libc in
future code changes.
Please see
* http://gcc.gnu.org/onlinedocs/gcc/Object-Size-Checking.html
* http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html
for information on these features.
Change-Id: I1a281a4bac20009f4730dd8d8b798fa107576230
Change TARGET_ARCH_VARIANT from x86-atom to x86, for the reason
that atom-specific instruciton like "movbe" isn't "generic" to
x86 Android devices and x86 host running emulator-x86, which may
crash non-atom host in VT because "movbe" isn't supported natively.
Also revert previous fix in TARGET_linux-x86.mk which conservatively
disable "movbe" across the board
Change-Id: Ief93a3585566ffae558fcdc29741e6213a048d7d
Intruction "movbe" (move data after swapping bytes) is only available in
Intel atom. Disable it for more general x86 devices and x86 hosts which
run emulator-x86. Although emulator-x86 can support "movbe", most of
the time we want to run emulator-x86 with VT support for speed (with KVM
in Linux, or HAXM in Windows/MacOSX). The presence of "movbe" can crash
emulator-x86 in VT because non-atom host doesn't have it natively.
Change-Id: I86e037900ddcb8d544f92b8d8464c8627347e560
Added Mountain Lion to the list of versions which don't need ranlib
and don't need the pre-Lion linker flags
Change-Id: I0c785f0c66e324af9a209520c5a5b3c9bf7df0d5
Signed-off-by: Al Sutton <al@funkyandroid.com>
For Mac build, force_load the LOCAL_WHOLE_STATIC_LIBRARIES.
Mac has its custom linker. However, its linking rule for generating
shared libraries doesn’t take the LOCAL_WHOLE_STATIC_LIBRARIES
into consideration.
Change-Id: Ia6858bf6e2ebb334db8f3d0bdc71d7ecc0ef11c1
The cc and c++ compilers included in Apple's command line tools show some
unusual behaviour which causes the build to fail in several projects under
Xcode 4.3
This patch uses the gnu compatibility gcc and g++ compilers on OS X instead
to reduce problems, and generates an error when an llvm based compiler is
detected because they currently do not generate usable emulator executables
due to them not honouring global register variables.
Change-Id: I506c22dad3dcbd41df3c7672802a675d3655e262
Signed-off-by: Al Sutton <al@funkyandroid.com>
Enable relro / bind_now when compiling Android applications.
This marks certain regions of memory as read-only after linking,
making memory corruption security vulnerabilities are harder
to exploit.
See:
* http://www.akkadia.org/drepper/nonselsec.pdf (section 6)
* http://tk-blog.blogspot.com/2009/02/relro-not-so-well-known-memory.html
Stop using the custom linker script, which inhibits
relro / bind_now support.
Change-Id: Ie97ccdd2845886bbc2ba2fdd47eed0ff4b29b60b
Nick Kralevich