History log of /art/runtime/arch/arm64/asm_support_arm64.S
Revision Date Author Comments
69a503050fb8a7b3a79b2cd2cdc2d8fbc594575d 14-Apr-2015 Zheng Xu <zheng.xu@arm.com> ARM64: Remove suspend register.

It also clean up build/remove frame used by JNI compiler and generates
stp/ldp instead of str/ldr. Also x19 has been unblocked in both quick and
optimizing compiler.

Change-Id: Idbeac0942265f493266b2ef9b7a65bb4054f0e2d
677cd61ad05d993c4d3b22656675874f06d6aabc 15-Oct-2014 Ian Rogers <irogers@google.com> Make ART compile with GCC -O0 again.

Tidy up InstructionSetFeatures so that it has a type hierarchy dependent on
architecture.
Add to instruction_set_test to warn when InstructionSetFeatures don't agree
with ones from system properties, AT_HWCAP and /proc/cpuinfo.
Clean-up class linker entry point logic to not return entry points but to
test whether the passed code is the particular entrypoint. This works around
image trampolines that replicate entrypoints.
Bug: 17993736

(cherry picked from commit 6f3dbbadf4ce66982eb3d400e0a74cb73eb034f3)

Change-Id: I3e7595f437db4828072589d475a5453b7f31003e
6f3dbbadf4ce66982eb3d400e0a74cb73eb034f3 15-Oct-2014 Ian Rogers <irogers@google.com> Make ART compile with GCC -O0 again.

Tidy up InstructionSetFeatures so that it has a type hierarchy dependent on
architecture.
Add to instruction_set_test to warn when InstructionSetFeatures don't agree
with ones from system properties, AT_HWCAP and /proc/cpuinfo.
Clean-up class linker entry point logic to not return entry points but to
test whether the passed code is the particular entrypoint. This works around
image trampolines that replicate entrypoints.
Bug: 17993736

Change-Id: I5f4b49e88c3b02a79f9bee04f83395146ed7be23
29b3841ad8c1c18ee7ddd2d8cab85806b3d62eaa 13-Aug-2014 Andreas Gampe <agampe@google.com> ART: Set default visibility to protected

Set default visibility of symbols to protected. This allows the
linker to optimize internal calls and helps avoid plt calls.

Make almost all assembly stubs hidden, as -fvisibility does not
seem to apply to them. Change the assembly tests accordingly. Also
allows to clean up previous hacks to avoid plt calls.

Bug: 16974467

(cherry picked from commit 235e77bd9f19e4faefda109be40f8744f3a66f40)

Change-Id: I9030dcf6116251f434f94a2b08e56e12085af652
235e77bd9f19e4faefda109be40f8744f3a66f40 13-Aug-2014 Andreas Gampe <agampe@google.com> ART: Set default visibility to protected

Set default visibility of symbols to protected. This allows the
linker to optimize internal calls and helps avoid plt calls.

Make almost all assembly stubs hidden, as -fvisibility does not
seem to apply to them. Change the assembly tests accordingly. Also
allows to clean up previous hacks to avoid plt calls.

Bug: 16974467
Change-Id: I9030dcf6116251f434f94a2b08e56e12085af652
b551fdcda9eb128c80de37c4fb978968bec6d4b3 25-Jul-2014 Zheng Xu <zheng.xu@arm.com> AArch64: Clean up CalleeSaveMethod frame and the use of temp registers.

CalleeSaveMethod frame size changes :
SaveAll : 368 -> 176
RefOnly : 176 -> 96
RefsAndArgs : 304 -> 224

JNI register spill size changes :
160 -> 88

In the transition assembly, use registers following the rules:
1. x0-x7 as temp/argument registers.
2. IP0, IP1 as scratch registers.
3. After correct type of callee-save-frame has been setup, all registers
are scratch-able(probably except xSELF and xSUSPEND).
4. When restore callee-save-frame, IP0 and IP1 should be untouched.
5. From C to managed code, we assume all callee save register in AAPCS
will be restored by managed code except x19(SUSPEND).

In quick compiler:
1. Use IP0, IP1 as scratch register.
2. Use IP1 as hidden argument register(IP0 will be scratched by
trampoline.)

Change-Id: I05ed9d418b01b9e87218a7608536f57e7a286e4c
9bacc074eebd36ae7248dbb641fa989067c74b19 05-Jun-2014 Christopher Ferris <cferris@google.com> Do not force unwind info to debug_frame.

The .cfi_sections directive was forcing unwind information into the
debug_frame, which is stripped out. This causes any unwinds done by
libunwind/debuggerd through these art functions to terminate prematurely.

Bug: 15350524

(cherry picked from commit cdb3fa5839f206383c7c20a29f5a3e7f5992aa04)

Change-Id: I4c4b1093e99a54dda308508c2c4a0280696fdc6d
cdb3fa5839f206383c7c20a29f5a3e7f5992aa04 05-Jun-2014 Christopher Ferris <cferris@google.com> Do not force unwind info to debug_frame.

The .cfi_sections directive was forcing unwind information into the
debug_frame, which is stripped out. This causes any unwinds done by
libunwind/debuggerd through these art functions to terminate prematurely.

Bug: 15350524
Change-Id: Id6abe7c7106132083bc894a77564b652a08566cb
ffddfdf6fec0b9d98a692e27242eecb15af5ead2 03-Jun-2014 Tim Murray <timmurray@google.com> DO NOT MERGE

Merge ART from AOSP to lmp-preview-dev.

Change-Id: I0f578733a4b8756fd780d4a052ad69b746f687a9
48241e786121e1c4c050d9cfad3d22de270a3e75 23-May-2014 Zheng Xu <zheng.xu@arm.com> AArch64: Add suspend check in managed code.

TODO: Remove x19 in the frame in runtime, generic jni, compiled jni.

Change-Id: Ibdc292c9e7adb3a5d3eff353c22f60ffc101f549
5c1e4352614d61fed6868567e58b96682828cb4d 22-Apr-2014 Andreas Gampe <agampe@google.com> Add "arch_test" gtest for assembly stub constants, add some ARM64 assembly code

Add a test that (1) checks all callee-save method frame sizes for
all architectures, (2) checks thread offsets for the runtime
architecture and (3) checks callee-save method offsets for the
runtime architecture.

The "asm_support_XXX.h" files now only contain definitions that are
common between all architectures. Architecture-specific definitions
(i.e., special registers names) have been pushed into the corresponding
.S file. This change was required to be able to undefine definitions
in the test, so that multiple tests can be written in one file.

Test (1) above is in a sense two-stage. The arch_test gtest compares
constants (if it finds them) against the frame size as reported by
the ArtMethods created by the Runtime. This works for all architectures
as we can provide the instruction-set to CreateCalleeSaveMethod. The
second stage of the "test" are preprocessor tests with "#error" in the
case that the constants are not the expected value.

Optimally I'd like to change that to an actual runtime test exercising
the assembly code, which would also allow to check whether the right
registers are stored.

Also added missing assembly code for ARM64 for the callee-save macros.

Also fix X86_64 compilation for Clang 3.5.

Change-Id: I018e6433dffd3d31ba3bfcd75661653f4c7b6552
b95a5345ae4217b70ca36f0cced92f68dda7caf5 12-Mar-2014 Stuart Monteith <stuart.monteith@arm.com> AArch64: Add arm64 runtime support.

Adds support for arm64 to ART. Assembler stubs are sufficient for
down calls into interpreter. JNI compiler and generics are not finished.

Basic Generic JNI functionality.

Change-Id: I4a07c79d1e037b9f5746673480e32cf456867b82