binutils-gdb/gdb/features/aarch64-sve.c
Alan Hayward 39bfb9373c Use uint64_t for SVE VQ
Previously VQ was of type long. Using uint64_t ensures it always matches the
same type as the VG register.
Note that in the Linux kernel, VQ is 16bits. We cast it up to 64bits
immediately after reading to ensure we always use the same type throughout
the code.

gdb/
	* aarch64-tdep.c (aarch64_read_description): Use uint64_t for VQ.
	* aarch64-tdep.h (aarch64_read_description): Likewise.
	* arch/aarch64.c (aarch64_create_target_description): Likewise.
	* arch/aarch64.h (aarch64_create_target_description): Likewise.
	* features/aarch64-sve.c (create_feature_aarch64_sve): Likewise.
	* nat/aarch64-sve-linux-ptrace.c(aarch64_sve_get_vq): Likewise.
	* nat/aarch64-sve-linux-ptrace.h (aarch64_sve_get_vq): Likewise.
2018-06-04 10:50:59 +01:00

159 lines
8.2 KiB
C

/* Copyright (C) 2018 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 "common/tdesc.h"
/* This function is NOT auto generated from xml. Create the aarch64 with SVE
feature into RESULT, where SCALE is the number of 128 bit chunks in a Z
register. */
static int
create_feature_aarch64_sve (struct target_desc *result, long regnum,
uint64_t scale)
{
struct tdesc_feature *feature;
tdesc_type *element_type, *field_type;
tdesc_type_with_fields *type_with_fields;
feature = tdesc_create_feature (result, "org.gnu.gdb.aarch64.sve");
element_type = tdesc_named_type (feature, "ieee_double");
tdesc_create_vector (feature, "svevdf", element_type, 2 * scale);
element_type = tdesc_named_type (feature, "uint64");
tdesc_create_vector (feature, "svevdu", element_type, 2 * scale);
element_type = tdesc_named_type (feature, "int64");
tdesc_create_vector (feature, "svevds", element_type, 2 * scale);
element_type = tdesc_named_type (feature, "ieee_single");
tdesc_create_vector (feature, "svevsf", element_type, 4 * scale);
element_type = tdesc_named_type (feature, "uint32");
tdesc_create_vector (feature, "svevsu", element_type, 4 * scale);
element_type = tdesc_named_type (feature, "int32");
tdesc_create_vector (feature, "svevss", element_type, 4 * scale);
element_type = tdesc_named_type (feature, "uint16");
tdesc_create_vector (feature, "svevhu", element_type, 8 * scale);
element_type = tdesc_named_type (feature, "int16");
tdesc_create_vector (feature, "svevhs", element_type, 8 * scale);
element_type = tdesc_named_type (feature, "uint8");
tdesc_create_vector (feature, "svevbu", element_type, 16 * scale);
element_type = tdesc_named_type (feature, "int8");
tdesc_create_vector (feature, "svevbs", element_type, 16 * scale);
type_with_fields = tdesc_create_union (feature, "svevnd");
field_type = tdesc_named_type (feature, "svevdf");
tdesc_add_field (type_with_fields, "f", field_type);
field_type = tdesc_named_type (feature, "svevdu");
tdesc_add_field (type_with_fields, "u", field_type);
field_type = tdesc_named_type (feature, "svevds");
tdesc_add_field (type_with_fields, "s", field_type);
type_with_fields = tdesc_create_union (feature, "svevns");
field_type = tdesc_named_type (feature, "svevsf");
tdesc_add_field (type_with_fields, "f", field_type);
field_type = tdesc_named_type (feature, "svevsu");
tdesc_add_field (type_with_fields, "u", field_type);
field_type = tdesc_named_type (feature, "svevss");
tdesc_add_field (type_with_fields, "s", field_type);
type_with_fields = tdesc_create_union (feature, "svevnh");
field_type = tdesc_named_type (feature, "svevhu");
tdesc_add_field (type_with_fields, "u", field_type);
field_type = tdesc_named_type (feature, "svevhs");
tdesc_add_field (type_with_fields, "s", field_type);
type_with_fields = tdesc_create_union (feature, "svevnb");
field_type = tdesc_named_type (feature, "svevbu");
tdesc_add_field (type_with_fields, "u", field_type);
field_type = tdesc_named_type (feature, "svevbs");
tdesc_add_field (type_with_fields, "s", field_type);
type_with_fields = tdesc_create_union (feature, "svev");
field_type = tdesc_named_type (feature, "svevnd");
tdesc_add_field (type_with_fields, "d", field_type);
field_type = tdesc_named_type (feature, "svevns");
tdesc_add_field (type_with_fields, "s", field_type);
field_type = tdesc_named_type (feature, "svevnh");
tdesc_add_field (type_with_fields, "h", field_type);
field_type = tdesc_named_type (feature, "svevnb");
tdesc_add_field (type_with_fields, "b", field_type);
field_type = tdesc_named_type (feature, "uint8");
tdesc_create_vector (feature, "svep", field_type, 2 * scale);
tdesc_create_reg (feature, "z0", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z1", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z2", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z3", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z4", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z5", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z6", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z7", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z8", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z9", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z10", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z11", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z12", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z13", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z14", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z15", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z16", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z17", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z18", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z19", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z20", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z21", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z22", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z23", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z24", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z25", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z26", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z27", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z28", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z29", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z30", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "z31", regnum++, 1, NULL, 128 * scale, "svev");
tdesc_create_reg (feature, "fpsr", regnum++, 1, NULL, 32, "int");
tdesc_create_reg (feature, "fpcr", regnum++, 1, NULL, 32, "int");
tdesc_create_reg (feature, "p0", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "p1", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "p2", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "p3", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "p4", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "p5", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "p6", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "p7", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "p8", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "p9", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "p10", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "p11", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "p12", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "p13", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "p14", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "p15", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "ffr", regnum++, 1, NULL, 16 * scale, "svep");
tdesc_create_reg (feature, "vg", regnum++, 1, NULL, 64, "int");
return regnum;
}