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54 Commits

Author SHA1 Message Date
Ryan Macnak 9f2668c998 Set TARGET_OS_* from GN, falling back to HOST_OS_*. 
Use TARGET_OS_* instead of HOST_OS_* to decide on the assembly variant to use. Allows, say, a gen_snapshot compiled for a Mac to target Android when generating AOT as assembly.

R=fschneider@google.com, zra@google.com

Review-Url: https://codereview.chromium.org/2757783003 .
 2017-03-20 14:48:28 -07:00
Ryan Macnak b09552cd62 Reapply "DWARF and unwind support for AOT assembly output." 
This reverts commit 8fcdbb4a7f.

R=vegorov@google.com

Review-Url: https://codereview.chromium.org/2761593002 .
 2017-03-20 13:02:41 -07:00
Erik Ernst 8fcdbb4a7f Revert "DWARF and unwind support for AOT assembly output." 
Gardening.

This reverts commit ca20aab384.

That commit causes generation of incorrect register names on
vm-noopt-simarm64-mac-be, and it seems to cause a disk full
error later on (making the bot purple).

Review-Url: https://codereview.chromium.org/2754233002 .
 2017-03-17 12:57:45 +01:00
Ryan Macnak ca20aab384 DWARF and unwind support for AOT assembly output. 
Emit CFI information to teach gdb how to unwind Dart frames. Fixes unwinding for Mac x64 and Linux x64/ARM/ARM64. Unwinding already worked for iOS ARM64. Fixes unwinding on Android 6+ ARM.

Emit DWARF information about function inlining and line number mappings. Works with gdb, addr2line and llvm-symbolizer.

With --dwarf-stack-traces, also remove CodeSourceMaps from snapshots and change stack traces to a non-compliant form resembling Android's debuggerd output, which can be passed to ndk-stack.

Issue #28785

R=fschneider@google.com, johnmccutchan@google.com, vegorov@google.com

Review-Url: https://codereview.chromium.org/2723213002 .
 2017-03-16 13:08:54 -07:00