DW_TAG_restrict_type (0x37) @ <0x4d5> not handled

[Patrik Lundquist]

pahole doesn't handle GCC 6 DW_TAG_restrict_type.

die__process_unit: DW_TAG_restrict_type (0x37) @ <0x4d5> not handled!

Support was added upstream in commit 0fbb39291d5996c052ee026308052b3cc5f726e9.

[Christian Ehrhardt  (paelzer)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.

This bug is present in Debian too, and Ubuntu currently doesn't make any changes over the Debian package. So this bug would be best fixed directly in Debian, and then Ubuntu will pick up the fix automatically.

Would you mind filing a bug with Debian please?

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Andreas Hasenack (ahasenack)]

Link to the upstream commit: https://git.kernel.org/pub/scm/devel/pahole/pahole.git/commit/?id=0fbb39291d5996c052ee026308052b3cc5f726e9

[Andreas Hasenack (ahasenack)]

Still valid in cosmic as well.

[Andreas Hasenack (ahasenack)]

There is a new upstream release, tagged 1.11: https://git.kernel.org/pub/scm/devel/pahole/pahole.git/snapshot/pahole-1.11.tar.gz

Current 1.10 one that debian and ubuntu have been carrying is about 6yo

[Andreas Hasenack (ahasenack)]

Quick reproducer, to help test this whenever it gets addressed:
#include <stdio.h>
#include <stdlib.h>

int main(void) {
 char *restrict foo = "Hello world.\n";

 printf("%s", foo);
 exit(0);
}

Compile with -ggdb and then run pahole on the resulting binary:
$ pahole foo
die__process_unit: DW_TAG_restrict_type (0x37) @ <0x91> not handled!

[Robie Basak (racb)]

Reported fixed in Disco in 1.12-1.

If you need a fix for the bug in previous versions of Ubuntu, then the relevant procedure is documented here:

        https://wiki.ubuntu.com/StableReleaseUpdates