74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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// ----------------------------------------------------------------------------
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// Copyright 2024 Arm Limited
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy
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// of the License at:
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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// ----------------------------------------------------------------------------
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/**
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* @brief Application entry point second veneer.
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*
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* This module contains the second command line entry point veneer, used to
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* validate that Arm SVE vector width matches the tool build. When used, it is
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* compiled with SVE ISA support but without any vector legnth override, so it
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* will see the native SVE vector length exposed to the application.
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*/
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#include <cstdio>
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#if ASTCENC_SVE != 0
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#include <arm_sve.h>
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#endif
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/**
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* @brief The main entry point.
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*
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* @param argc The number of arguments.
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* @param argv The vector of arguments.
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*
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* @return 0 on success, non-zero otherwise.
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*/
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int astcenc_main(
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int argc,
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char **argv);
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/**
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* @brief Print a formatted string to stderr.
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*/
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template<typename ... _Args>
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static inline void print_error(
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const char* format,
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_Args...args
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) {
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fprintf(stderr, format, args...);
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}
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int astcenc_main_veneer(
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int argc,
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char **argv
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) {
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// We don't need this check for 128-bit SVE, because that is compiled as
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// VLA code, using predicate masks in the augmented NEON.
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#if ASTCENC_SVE > 4
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// svcntw() returns compile-time length if used with -msve-vector-bits
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if (svcntw() != ASTCENC_SVE)
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{
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int bits = ASTCENC_SVE * 32;
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print_error("ERROR: Host SVE support is not a %u-bit implementation\n", bits);
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return 1;
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}
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#endif
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return astcenc_main(argc, argv);
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}
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