We want to store the symbol information for all android binaries in a global database.
* We ingest unstripped binaries into the global database
* When we collect address data from device (e.g. instruction pointer address), we want to lookup its symbol information through the global database. The key of the mapping is a unique build id, which is the same between binaries on device (stripped) and unstripped binaries.
After applying this patch, the system.img size increases by 0.0047% (16.3KB).
Change-Id: Id92faf2951f43a30947e8d2b690c1af6bf7e3f54
Previously, there was one generic definition for each of the
transform-o-to-* functions in definitions.mk, and one target specific
one in each combo/TARGET_*.mk. The generic one was entirely unused,
and the target specific ones were all nearly identical.
Changing anything in these functions was tedious at best, and often
error prone. The differences between any 32-bit arch and its 64-bit
equivalent were restricted to the name of the linker, and the ARM and
MIPS definitions were identical. The few differences between ARM and
x86 looked to be compatibility for an old (ca. 2008) toolchain issue
with --gc-sections, and a bug (LDFLAGS coming first rather than
later).
To simplify things, I've moved the definitions for these out of
combo/TARGET_*.mk and back into definitions.mk. The differences
between ARM and x86 have been scrapped. Anything that really does
still need to be target specific can be handled as I have the linker:
add a TARGET_FOO variable to the given target and then add it to the
generic definition.
Change-Id: I54dc1bffc32ac39f27f0b87247dd6a6dbaf0b162
The compiler run-time library should always be the _last_ thing linked
when building static executables. This was being done correctly for
libgcc, but not when using compiler-rt.
Change-Id: I0689dc35f55caad2fe74c0cbb4cbe3008ded349a
To enable building with coverage, the environment variable
NATIVE_COVERAGE must be set to true.
Set `LOCAL_NATIVE_COVERAGE := true` to generate coverage information for
a given component.
This is currently not supported for clang (b/17574078, b/17583330).
If static library A is included in a binary B (dynamic or static
executable, or shared library), and A is built with coverage
information, B is required to link with libgcov.a. Since the make does
not offer a good way to track this dependency, link libgcov.a even if
LOCAL_NATIVE_COVERAGE is not set (but still guarded by NATIVE_COVERAGE).
This ensures that all of the libgcov dependencies will always be
resolved, and causes no change in the resulting binary if coverage is
not used.
Bug: 10134489
Change-Id: Id5a19f2c215e4be80e6eae27ecc19b582f2f6813
Preparing for migration from stlport to libc++. STL selection is done
with LOCAL_CXX_STL (valid values are default, none, libc++,
libc++_static, stlport, stlport_static, bionic).
The selection of the STL is as follows:
if LOCAL_CXX_STL == 'default'
ifdef LOCAL_SDK_VERSION
Use whatever STL the other NDK options have selected.
else
Use bionic's libstdc++ for target, GNU libstdc++ for host. This
is compatible with the existing build options.
endif
else
if LOCAL_CXX_STL == 'stlport'
Use stlport.
else if LOCAL_CXX_STL == 'libc++'
Use libc++.
else if LOCAL_CXX_STL == ''
Don't use any STL.
endif
endif
Bug: 15193147
Change-Id: If712ba0ae7908d8147a69e29da5c453a183d6540
We've been using -fPIC and -fPIE together in the global cflags all this
time. These options are incompatible. The only reason we haven't been
hit by this before is because of the forced -Bsymbolic in GCC. To fix
this, pass -fpic when compiling objects for shared libraries and -fpie
when compiling objects for executables. For static libraries, also use
-fpic. We have to do this because static libraries might be included in
either a shared library or an executable. Code compiled with -fpie
cannot be included in a shared library, but code compiled with -fpic
may be included in an executable.
We've also been using -fpic and -fPIC together. These are different
options, and only the latter will take effect.
http://stackoverflow.com/a/967010
The final thing this fixes is that we had -f(PIC|PIE) flags being passed
to link commands. These are compile time flags, and don't do anything at
link time.
Bug: 16823325
Change-Id: Ic76f47e63dc2c81b7e1a8058bae1b3dc8565d606
* Explicitly check BUILD_FDO_INSTRUMENT and BUILD_FDO_OPTIMIZE with true
* Remove unnecessary target_libgcov
* Update the profile collection path on device so that most app can have write access
Change-Id: I5c1915a12ea37b2cb3c76a27e7104e47ad636928
Use 4.9 mips64el toolchain for both 64- and 32-bit builds.
Tell ld when 32-bit links are required.
Override 4.9's changed defaults for mips floating point
register use, to get same assembler rules as 4.8 and earlier.
Also: drop unused soft-fp build targets, cleanout redundant
compiler options, and remove extraneous Android.mk file.
Change-Id: I86f1075266349edb2b08a7709b9f5472d8cfda32
Set up TARGET_IS_64_BIT and HOST_IS_64_BIT early so we don't need 2
mechanisms to judge if it's 64-bit build;
Remove the unnecessary 32-bit host variables.
Change-Id: I08d6d4d9ea70f91135fe2ee05463fb9a0d1cee42
This is causing issues when tools like asan try to wrap calls like
malloc. See the referenced bug for more details.
Bug: 15432753
Change-Id: I15e8eab5b773afd02dc14c78500cf8246a617718
Projects using stdatomic.h needs libatomic.a in case compiler can't
expand all __atomic* intrinsics. eg, __atomic_is_lock_free in
armeabi/mips.
Adding libatomic.a globally makes more sense than adding
"LOCAL_LDLIB += -latomic " in each project including <stdatomic.h>.
Projects don't need atomic operations won't get redundant DT_NEEDED
entry because libatomic.a is not a shared library.
Change-Id: I81dbf524544c848e667e18ab5eeabff75b5063ef
GCC know a few pre-defined paths (relative to its location) to
search for headers, libraries, program, etc. By default GCC prefixes
its own path(argv[0]) and calls realpath() which result in absolute
path with all symlink, . and .. removed.
It's usually good to have canonicalised paths, but absolute paths
in *.d file can cause unnecessary relinking when stale entries
in ccache cache hit
Add -no-canonical-prefixes (gcc>=4.6) and
-fno-canonical-system-headers (gcc>4.6) to disable realpath() on
prefixed paths
Change-Id: I58d739e61fb013015fb05a9c98b2132b307f915a
Use LOCAL_LDLIBS to link against prebuilt libraries (such as NDK
libraries).
Previously LOCAL_LDLIBS only applies to host modules and the behaviour
confuses users.
Change-Id: I515546d7b59ef54e8ef09050eb58ec63534c9291
When LOCAL_STRIP_MODULE := keep_symbols is set, then the normal strip rules
will be modified so that only the .debug_* sections are removed. The original
symbol table is left alone.
This allows the compilation of certain libraries so that libbacktrace library
can provide meaningful names to functions.
Bug: 12958251
Change-Id: I82bdc304a463012e29086325ccb51163464cb4a9
Elliott Hughes