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From: "cel at us dot ibm.com" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug tdep/29247] [gdb, tdep] ../../gdb/ppc-sysv-tdep.c:1945:
 internal-error: ppc64_sysv_abi_return_value: Assertion `ok' failed
Date: Wed, 27 Jul 2022 16:54:17 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D29247

--- Comment #26 from Carl E Love <cel at us dot ibm.com> ---
Looks like the change to the patch was to replace floatformats_ieee_quad wi=
th=20
floatformats_ia64_quad.  I didn't see any other changes.

The patch applied and compiled without any issues.  I ran the test

 make check RUNTESTFLAGS=3D'GDB=3D/home/carll/bin/gdb  gdb.base/varargs.exp=
 ' > out

and checked the results in gdb/testsuite/gdb.log

...
gdb) PASS: gdb.base/varargs.exp: print find_max_double_real(4, dc1, dc2, dc=
3, \
dc4)
print find_max_long_double_real(4, ldc1, ldc2, ldc3, ldc4)^M
$8 =3D 4 + 4i^M
(gdb) PASS: gdb.base/varargs.exp: print find_max_long_double_real(4, ldc1,
ldc2\
, ldc3, ldc4)
testcase
/home/carll/GDB/build-gdb-12.1/gdb/testsuite/../../../gdb-12.1/gdb/tes\
tsuite/gdb.base/varargs.exp completed in 0 seconds

                =3D=3D=3D gdb Summary =3D=3D=3D

# of expected passes            11
...

It seemed to work fine.

Again, I am using a Power 10 system with Enterprise Linux release 9.0 (Plow=
).=20=20

I used the gdb 12.1 source tar file gdb-12.1.tar.gz from
https://ftp.gnu.org/gnu/gdb/.  I created a git repository with that source
before applying the back ported patch.


I tried testing with the same source tar file and backported patch on a Pow=
er 9
system running  Ubuntu 22.04 LTS.  The  gdb.base/varargs.exp test again runs
with all tests passing.=20=20

Do you have any details on the system where you saw the error?  I can see i=
f I
can find a machine that matches the specs of the machine that you used to s=
ee
if I can reproduce the failure.

--=20
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