DW_TAG_mutable_type was a mistake in an early DWARFv3 draft and was
removed in the final version.
http://dwarfstd.org/ShowIssue.php?issue=050223.1
Signed-off-by: Mark Wielaard <mjw@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
When computing the size of a class, leave, caused problems in
some cases, links to the reports are in the comments.
Reported-by: Nicolas <nikos42@gmail.com>
Suggested-by: Mark Wielaard <mjw@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
As Thomas Gleixner wisely pointed out, using 'self' is stupid, it
doesn't convey useful information, so use sensible names.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
RHEL5 and Fedora 11 were not building due to the GNU attributes stuff,
cope with that using a define we know is not present in both RHEL5 and
Fedora 11 to #ifdef those parts. Ugly, but _ELFUTILS_PREREQ, i.e.
elfutils/version.h is not present in RHEL5 either.
Reported-by: Jon Stanley <jstanley@fedoraproject.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
[acme@doppio pahole]$ pahole -F ctf /media/tb/debuginfo/usr/lib/debug/usr/bin/greycstoration4integration.debug > /tmp/bla
<ERROR(tag__size:837): detected type loop: type=572, tag=const_type>
<ERROR(tag__size:837): detected type loop: type=572, tag=const_type>
[acme@doppio pahole]$
These type loops are problems in the CTF encoding, that should be fixed, but
should not cause the core code to segfault on an infinite recursion.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
I.e.:
[acme@doppio pahole]$ cat tests/jengelh@medozas.de/const_const.c
struct x {
const char *const s;
} y;
int main(void)
{
return !y.s;
}
[acme@doppio pahole]$ pahole tests/jengelh@medozas.de/const_const
struct x {
char const * const s; /* 0 8 */
/* size: 8, cachelines: 1, members: 1 */
/* last cacheline: 8 bytes */
};
[acme@doppio pahole]$
One more reason to devote some time to RTT, i.e. Round Trip Testing, where
pahole will be used to regenerate the source code, then feed the result to
gcc -g, run again, use codiff, that should produce no diff.
Reported-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
That asks dwarf_fprintf to always use "struct" in places where it would
use "class", because CTF doesn't have the "class" concept, so for
'regtest diffctf' sake, we use this.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
If it is C++ add DW_TAG_member entries to cu->tags_table and at
imported_declaration__fprintf fallback to cu__tag() if cu__function()
fails.
The right thing tho, long term, is to have a class for
"DW_TAG_imported_declaration" to register to what kind of tag this
points, if for DW_TAG_subprogram or to DW_TAG_member, the info is in the
DWARF DW_AT_import attribute, but so far we're not decoding it.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Next we'll add a new kind of tag, DW_TAG_perf_counter, that will come
from perf.data generated by 'perf report'.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
JAVA support needs to be checked, but from a very quick skim it
looks ok'ish.
First detected with /usr/bin/fstack from frysk.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Sharing the same space with abstract_origin, so that we can remove the last
Dwarf_Off in dwarf_fprintf.c.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Mark Wielaard
Cody P Schafer
Arnaldo Carvalho de Melo
Tal Kelrich
Zack Weinberg