[Lldb-commits] 64bit eh_frame support

[Todd Fiala]

Bump!


On Fri, Aug 15, 2014 at 3:30 PM, Tong Shen <endlessroad at google.com> wrote:

> Hi Jason,
>
> Attached patch adds 64bit eh_frame section support.
>
> In practice, 64bit eh_frame is not used even for x86_64 binaries. The main
> reason is in eh_frame we almost always use pc-relative addressing, so
> addresses are within 32bits and gcc just sticks to 32bit eh_frame.
>
> I generated 64bit eh_frame for Android Java runtime and unwind
> successfully in gdb, and in lldb with this patch.
>
> Also, I double checked with gdb source code
> <https://sourceware.org/git/?p=gdb.git;a=blob;f=gdb/dwarf2-frame.c;hb=master>(decode_frame_entry_1)
> and libunwind source code
> <http://git.savannah.gnu.org/gitweb/?p=libunwind.git;a=blob;f=src/dwarf/Gfde.c;hb=HEAD>(parse_cie
> & dwarf_extract_proc_info_from_fde) to make sure my understanding is
> correct.
>
> Thank you.
>
> --
> Best Regards, Tong Shen
>
> _______________________________________________
> lldb-commits mailing list
> lldb-commits at cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/lldb-commits
>
>


-- 
Todd Fiala | Software Engineer | tfiala at google.com | 650-943-3180
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/lldb-commits/attachments/20140825/1c5e51a5/attachment.html>