mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2025-03-07 13:39:43 +08:00
b907456c3e
Replaces use of aarch64_type_align with common type_align function. Doing this fixes a bug in aarch64_type_align where static fields are considered as part of the alignment calculation of a struct, which results in arguments passed on the stack being misaligned. This bug is exposed in the new test gdb.cp/many-args.exp. Part of the old aarch64_type_align is retained and used as the gdbarch type align callback in order to correctly align vectors. gdb/ChangeLog: * aarch64-tdep.c (aarch64_type_align): Only handle vector override case. (pass_on_stack): Use type_align. (aarch64_gdbarch_init): Register aarch64_type_align gdbarch function. gdb/testsuite/ChangeLog: * gdb.cp/many-args.cc: New file. * gdb.cp/many-args.exp: New file.
77 lines
2.8 KiB
C++
77 lines
2.8 KiB
C++
/* Copyright 2019 Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include <string.h>
|
|
|
|
/* Vector type will align on a 16-byte boundary. */
|
|
typedef int v4si __attribute__ ((vector_size (16)));
|
|
|
|
struct ss
|
|
{
|
|
static v4si static_field;
|
|
|
|
unsigned char aa;
|
|
|
|
bool operator== (const ss &rhs)
|
|
{
|
|
return (memcmp (&this->static_field, &rhs.static_field,
|
|
sizeof (this->static_field)) == 0
|
|
&& this->aa == rhs.aa);
|
|
}
|
|
};
|
|
|
|
v4si ss::static_field = { 1, 2, 3, 4 };
|
|
|
|
ss ref_val = { 'a' };
|
|
|
|
bool
|
|
check_val (ss v1, ss v2, ss v3, ss v4, ss v5, ss v6, ss v7, ss v8,
|
|
ss v9, ss v10, ss v11, ss v12, ss v13, ss v14, ss v15,
|
|
ss v16, ss v17, ss v18, ss v19, ss v20, ss v21, ss v22,
|
|
ss v23, ss v24, ss v25, ss v26, ss v27, ss v28, ss v29,
|
|
ss v30, ss v31, ss v32, ss v33, ss v34, ss v35, ss v36,
|
|
ss v37, ss v38, ss v39, ss v40)
|
|
{
|
|
return (v1 == ref_val && v2 == ref_val && v3 == ref_val && v4 == ref_val
|
|
&& v5 == ref_val && v6 == ref_val && v7 == ref_val
|
|
&& v8 == ref_val && v9 == ref_val && v10 == ref_val
|
|
&& v11 == ref_val && v12 == ref_val && v13 == ref_val
|
|
&& v14 == ref_val && v15 == ref_val && v16 == ref_val
|
|
&& v17 == ref_val && v18 == ref_val && v19 == ref_val
|
|
&& v20 == ref_val && v21 == ref_val && v22 == ref_val
|
|
&& v23 == ref_val && v24 == ref_val && v25 == ref_val
|
|
&& v26 == ref_val && v27 == ref_val && v28 == ref_val
|
|
&& v29 == ref_val && v30 == ref_val && v31 == ref_val
|
|
&& v32 == ref_val && v33 == ref_val && v34 == ref_val
|
|
&& v35 == ref_val && v36 == ref_val && v37 == ref_val
|
|
&& v38 == ref_val && v39 == ref_val && v40 == ref_val);
|
|
}
|
|
|
|
int
|
|
main ()
|
|
{
|
|
bool flag = check_val (ref_val, ref_val, ref_val, ref_val, ref_val,
|
|
ref_val, ref_val, ref_val, ref_val, ref_val,
|
|
ref_val, ref_val, ref_val, ref_val, ref_val,
|
|
ref_val, ref_val, ref_val, ref_val, ref_val,
|
|
ref_val, ref_val, ref_val, ref_val, ref_val,
|
|
ref_val, ref_val, ref_val, ref_val, ref_val,
|
|
ref_val, ref_val, ref_val, ref_val, ref_val,
|
|
ref_val, ref_val, ref_val, ref_val, ref_val);
|
|
return (flag ? 0 : 1); /* break-here */
|
|
}
|