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Re: elfutils/libdw ARM compilation (native and cross compile)


Hi Jean,

Seems you already got your answer to the build question solved.

On Tue, 2014-02-25 at 18:17 +0100, Jean Pihet wrote:
> The goal is to add the libdw support for perf on ARM (and later AARCH64).

Note that there is some code in elfutils git that handles .debug_frame
for ARM, but not yet code for handling EXIDX tables. For non-debug
unwinding ARM uses EXIDX tables, not .eh_frames. Handling EXIDX tables
is probably easiest done by translating them to CFI. In case you want to
do unwinding using libdw without .debug_frame available.

For AARCH64 there is some code available on my branch:
https://git.fedorahosted.org/cgit/elfutils.git/log/?h=mjw/aarch64-unwind
Which might or might not work. I need to get access again to a aarch64
setup to do some more testing before moving this to master.

Cheers,

Mark


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