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| author | Tamas Berghammer <tberghammer@google.com> | 2015-06-24 11:27:32 +0000 |
|---|---|---|
| committer | Tamas Berghammer <tberghammer@google.com> | 2015-06-24 11:27:32 +0000 |
| commit | 44ff9ccede2c44c79e735127cc25853156189ba9 (patch) | |
| tree | 4b7bf8a0a2653b2bd6c9a176da957bbe5576cefd /llvm/lib/Object/COFFObjectFile.cpp | |
| parent | 1d2353d4f3cda04ea7ef18dfffc720b526816de2 (diff) | |
| download | llvm-44ff9ccede2c44c79e735127cc25853156189ba9.zip llvm-44ff9ccede2c44c79e735127cc25853156189ba9.tar.gz llvm-44ff9ccede2c44c79e735127cc25853156189ba9.tar.bz2 | |
Improve instruction emulation based stack unwinding on ARM
* Add and fix the emulation of several instruction.
* Disable frame pointer usage on Android.
* Specify return address register for the unwind plan instead of explict
tracking the value of RA.
* Replace prologue detection heuristics (unreliable in several cases)
with a logic to follow the branch instructions and restore the CFI
value based on them. The target address for a branch should have the
same CFI as the source address (if they are in the same function).
* Handle symbols in ELF files where the symbol size is not specified
with calcualting their size based on the next symbol (already done
in MachO files).
* Fix architecture in FuncUnwinders with filling up the inforamtion
missing from the object file with the architecture of the target.
* Add code to read register wehn the value is set to "IsSame" as it
meanse the value of a register in the parent frame is the same as the
value in the current frame.
Differential revision: http://reviews.llvm.org/D10447
llvm-svn: 240533
Diffstat (limited to 'llvm/lib/Object/COFFObjectFile.cpp')
0 files changed, 0 insertions, 0 deletions