[Bug tdep/24104] New: amd64_push_arguments assert running C++ version of gdb.base/infcall-nested-structs

[alahay01 at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=24104

            Bug ID: 24104
           Summary: amd64_push_arguments assert running C++ version of
                    gdb.base/infcall-nested-structs
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: tdep
          Assignee: unassigned at sourceware dot org
          Reporter: alahay01 at gcc dot gnu.org
  Target Milestone: ---

The C++ variant of gdb.base/infcall-nested-structs.exp produces many assert
failures.

Running one of them manually:

$ ../gdb
./outputs/gdb.base/infcall-nested-structs/c++/infcall-nested-structs-td
GNU gdb (GDB) 8.2.50.20190118-git
Copyright (C) 2019 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-pc-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from
./outputs/gdb.base/infcall-nested-structs/c++/infcall-nested-structs-td...
(gdb) b main
Breakpoint 1 at 0x4017ad: file
/work/alahay01/gdb-HEAD/build-x86/gdb/testsuite/../../../src/binutils-gdb/gdb/testsuite/gdb.base/infcall-nested-structs.c,
line 230.
(gdb) r
Starting program:
/work/alahay01/gdb-HEAD/build-x86/gdb/testsuite/outputs/gdb.base/infcall-nested-structs/c++/infcall-nested-structs-td

Breakpoint 1, main () at
/work/alahay01/gdb-HEAD/build-x86/gdb/testsuite/../../../src/binutils-gdb/gdb/testsu
   ite/gdb.base/infcall-nested-structs.c:230
230       res = call_all ();
(gdb) p/d check_arg_struct_01_01 (ref_val_struct_01_01)
../../src/binutils-gdb/gdb/amd64-tdep.c:958: internal-error: CORE_ADDR
amd64_push_arguments(regcache*, int, value**, CORE_ADDR,
function_call_return_method): Assertion `!"Unexpected register class."' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) y

This is a bug, please report it.  For instructions, see:
<http://www.gnu.org/software/gdb/bugs/>.

../../src/binutils-gdb/gdb/amd64-tdep.c:958: internal-error: CORE_ADDR
amd64_push_arguments(regcache*, int, value**, CORE_ADDR,
function_call_return_method): Assertion `!"Unexpected register class."' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Create a core file of GDB? (y or n)

-- 
You are receiving this mail because:
You are on the CC list for the bug.