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* ART: fix highest PC values removal in SrcMap.DeltaFormat()Yevgeny Rouban2014-09-161-1/+1
| | | | | | | | | | | | The conversion from absolute to offset Line Number Table values mistakenly removed all values less than the highest one, which resulted in clearing all the table. The fix is to use the reverse condition finding the highest correct PC value in the sorted table. Change-Id: I9850c2c46c1910b809043dd8163eb930a7849ded Signed-off-by: Yevgeny Rouban <yevgeny.y.rouban@intel.com>
* Runtime support for the new stack maps for the opt compiler.Nicolas Geoffray2014-09-081-4/+13
| | | | | | | Now most of the methods supported by the compiler can be optimized, instead of using the baseline. Change-Id: I80ab36a34913fa4e7dd576c7bf55af63594dc1fa
* ART fix oat debug source map operationsYevgeny Rouban2014-08-251-36/+17
| | | | | | | | | | | | | | | | | | | | | | Several places need to be fixed in OAT debug source map generation (see comments in https://android-review.googlesource.com/#/c/102610/19/compiler/compiled_method.h): 1. Source Maps are deduplicated in Compiler Driver by implicit conversion SrcMapElems to bytes. This implies incorrect operator==. 2. SrcMapElem operator < is peculiar, and cannot be applied to SrcMapElems with negative to_ fields 3. SrcMap.Arrange method is not elegant The fix is to introduce explicit conversion from SrcMapElem to one signed 64-bit value, which is used as a base of two new operators < and ==. They are correct and intuitive. DedupeHashFunc is changed to explicitly convert array elements to byte, so the explicit type conversion from SrcMapElem to byte is used. Minor fix: In Line Table Programs the file index set command is generated only if the index gets new value. Change-Id: I5e2c03404a437254fc2db3485b22bfc1799b39b7 Signed-off-by: Yevgeny Rouban <yevgeny.y.rouban@intel.com>
* ART source line debug info in OAT filesYevgeny Rouban2014-08-151-1/+99
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | OAT files have source line information enough for ART runtime needs like jump to/from interpreter and thread suspension. But this information is not enough for finer grained source level debugging and low-level profiling (VTune or perf). This patch adds to OAT files two additional sections: .debug_line - DWARF formatted Elf32 section with detailed source line information (mapping from native PC to Java source lines). In addition to the debugging symbols added using the dex2oat option --include-debug-symbols, the source line information is added to the section .debug_line. The source line info can be read by many Elf reading tools like objdump, readelf, dwarfdump, gdb, perf, VTune, ... gdb can use this debug line information in x86. In 64-bit mode the information can be used if the oat file is mapped in the lower address space (address has higher 32 bits zeroed). Relocation works. Testing: 1. art/test/run-test --host --gdb [--64] 001-HelloWorld 2. in gdb: break Main.java:19 3. in gdb: break Runtime.java:111 4. in gdb: run - stops at void java.lang.Runtime.<init>() 5. in gdb: backtrace - shows call stack down to main() 6. in gdb: continue - stops at void Main.main() (only in 32-bit mode) 7. in gdb: backtrace - shows call stack down to main() 8. objdump -W <oat-file> - addresses are from VMA range of .text section reported by objdump -h <file> 9. dwarfdump -ka <oat-file> - no errors expected Size of aosp-x86-eng boot.oat increased by 11% from 80.5Mb to 89.2Mb with two sections added .debug_line (7.2Mb) and .rel.debug (1.5Mb). Change-Id: Ib8828832686e49782a63d5529008ff4814ed9cda Signed-off-by: Yevgeny Rouban <yevgeny.y.rouban@intel.com>
* Emit CFI for x86 & x86_64 JNI compiler.Tong Shen2014-08-051-1/+2
| | | | | | | | | | | Now for host-side x86 & x86_64 ART, we are able to get complete stacktrace with even mixed C/C++ & Java stack frames. Testing: 1. art/test/run-test --host --gdb [--64] --no-relocate 005 2. In gdb, run 'b art::Class_classForName' which is implementation of a Java native method, then 'r' 3. In gdb, run 'bt'. You should see stack frames down to main() Change-Id: I2d17e9aa0f6d42d374b5362a15ea35a2fce96302
* Move trampolines to thumb2 instead of ARMDave Allison2014-06-231-0/+1
| | | | | | | | | Currently the entrypoint trampolines are compiled using the ARM32 assembler. This changes that to use the thumb2 assembler for consistency with the other compiled code. Bug: 15455279 Change-Id: I6bacdf359e2ae4c0967fb5cd9dc694af11f802ec
* Now we have a proper C++ library, use std::unique_ptr.Ian Rogers2014-05-191-1/+1
| | | | | | | Also remove the Android.libcxx.mk and other bits of stlport compatibility mechanics. Change-Id: Icdf7188ba3c79cdf5617672c1cfd0a68ae596a61
* Compatibility layer to transition from UniquePtr to std::unique_ptr.Ian Rogers2014-05-151-1/+1
| | | | | | | | | Use ART_WITH_STLPORT (enabled for the target) to cause the use of UniquePtr, for the host switch to std::unique_ptr. For now the type remains called UniquePtr. Make dalvik compile with clang on the host, move its build to C++11. Change-Id: I5ba8d2757904bc089ed62047ea03de3c0853fb12
* Give Compiler a back reference to the driver.Ian Rogers2014-05-061-4/+4
| | | | | | | | | | The compiler driver is a single object delegating work to the compiler, rather than passing it through to every Compiler call make it a member of Compiler so that it maybe queried. This simplifies the Compiler API and makes the relationship to CompilerDriver more explicit. Remove reference arguments that contravene code style. Change-Id: Iba47f2e3cbda679a7ec7588f26188d77643aa2c6
* Revert "Revert "Revert "Use trampolines for calls to helpers"""Dave Allison2014-04-091-17/+2
| | | | | | This reverts commit f9487c039efb4112616d438593a2ab02792e0304. Change-Id: Id48a4aae4ecce73db468587967968a3f7618b700
* Revert "Revert "Use trampolines for calls to helpers""Dave Allison2014-04-091-2/+17
| | | | | | | | | This reverts commit 081f73e888b3c246cf7635db37b7f1105cf1a2ff. Change-Id: Ibd777f8ce73cf8ed6c4cb81d50bf6437ac28cb61 Conflicts: compiler/dex/quick/mir_to_lir.h
* Revert "Use trampolines for calls to helpers"Dave Allison2014-04-071-17/+2
| | | | | | This reverts commit 754ddad084ccb610d0cf486f6131bdc69bae5bc6. Change-Id: Icd979adee1d8d781b40a5e75daf3719444cb72e8
* Use trampolines for calls to helpersDave Allison2014-04-041-2/+17
| | | | | | | | | | | | | | | | | | | | | | This is an ARM specific optimization to the compiler that uses trampoline islands to make calls to runtime helper functions. The intention is to reduce the size of the generated code (by 2 bytes per call) without affecting performance. By default this is on when generating an OAT file. It is off when compiling to memory. To switch this off in dex2oat, use the command line option: --no-helper-trampolines Enhances disassembler to print the trampoline entry on the BL instruction like this: 0xb6a850c0: f7ffff9e bl -196 (0xb6a85000) ; pTestSuspend Bug: 12607709 Change-Id: I9202bdb7cf21252ad807bd48701f1f6ce8e3d0fe
* Tell GDB about Quick ART generated codeMark Mendell2014-03-021-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is actually a lot of work. To do this, we need: .debug_info .debug_abbrev .debug_frame .debug_str These are generated into the OAT file by OatWriter and ElfWriterQuick. Since the Quick ART runtime doesn't use dlopen to load the OAT files, GDB can't find this information. Use the alternate GDB JIT interface, which can be invoked at runtime. To use this interface, an ELF image needs to be built in memory. Read the information from the OAT file, fixup the addresses to point to the real locations, add a symbol table to hold the .text symbol, and then let GDB know about the information, which will be read from the runtime address space. This is quite primitive now, and could be cleaned up considerably. It probably needs symbol table entries for the methods, and descriptions of parameters and return types. Currently only supported for X86. This defaults to enabled for debug builds. Added dexoat --gen-gdb-info and --no-gen-gdb-info flags to override. Change-Id: I4d18b2370f6dfaa00c8cc1925f10717be3bd1a62 Signed-off-by: Mark Mendell <mark.p.mendell@intel.com>
* Object model changes to support 64bit.Ian Rogers2014-02-061-15/+18
| | | | | | | | | | | | | | | | | | | | | | | Modify mirror objects so that references between them use an ObjectReference value type rather than an Object* so that functionality to compress larger references can be captured in the ObjectRefererence implementation. ObjectReferences are 32bit and all other aspects of object layout remain as they are currently. Expand fields in objects holding pointers so they can hold 64bit pointers. Its expected the size of these will come down by improving where we hold compiler meta-data. Stub out x86_64 architecture specific runtime implementation. Modify OutputStream so that reads and writes are of unsigned quantities. Make the use of portable or quick code more explicit. Templatize AtomicInteger to support more than just int32_t as a type. Add missing, and fix issues relating to, missing annotalysis information on the mutator lock. Refactor and share implementations for array copy between System and uses elsewhere in the runtime. Fix numerous 64bit build issues. Change-Id: I1a5694c251a42c9eff71084dfdd4b51fff716822
* Multi threaded hashed deduplication during compilation.Mathieu Chartier2013-09-031-0/+176
Moved deduplication to be in the compiler driver instead of oat writer. This enables deduplication to be performed on multiple threads. Also added a hash function to avoid excessive comparison of byte arrays. Improvements: Before (alloats host): real 1m6.967s user 4m22.940s sys 1m22.610s Thinkfree.apk (target mako): 0m23.74s real 0m50.95s user 0m9.50s system 0m24.62s real 0m50.61s user 0m10.07s system 0m24.22s real 0m51.44s user 0m10.09s system 0m23.70s real 0m51.05s user 0m9.97s system 0m23.50s real 0m50.74s user 0m10.63s system After (alloats host): real 1m5.705s user 4m44.030s sys 1m29.990s Thinkfree.apk (target mako): 0m23.32s real 0m51.38s user 0m10.00s system 0m23.49s real 0m51.20s user 0m9.80s system 0m23.18s real 0m50.80s user 0m9.77s system 0m23.52s real 0m51.22s user 0m10.02s system 0m23.50s real 0m51.55s user 0m9.46s system Bug: 10552630 Change-Id: Ia6d06a747b86b0bfc4473b3cd68f8ce1a1c7eb22
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