malformed symbol
Hiroki Sato
hrs at FreeBSD.org
Thu Dec 15 05:56:20 UTC 2016
Robert Mustacchi <rm at joyent.com> wrote
in <6b0842f5-46e8-e90e-0cc6-ec0cbe74669a at joyent.com>:
rm> On 12/14/16 14:51 , Hiroki Sato wrote:
rm> > This was reproducible on 11.x and 12.x, not on 10.x. Could anyone
rm> > try this and let me know if this is reproducible on your 11.x or 12.x
rm> > box? I guess this is a regression of symbol rewrite routine such as
rm> > s/__/-/ in the dtrace utility while I have not investigated the
rm> > details yet. Or am I missing something here?
rm>
rm> We've seen something similar on illumos that corresponds with newer
rm> binutils versions (2.26). See https://www.illumos.org/issues/6653.
Thank you for the info. Certainly passing -no-integrated-as flag to
clang to make it use an old gas avoids this issue. Simply doing
objcopy sample.o before "dtrace -G" is another workaround.
-- Hiroki
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