mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-26 05:10:05 +00:00
2e0f4b52c9
* tools: refactorize tools flags parsing. Each SPIR-V tool was handing their own flag parsing. This PR adds a new flag parsing utility that should be flexible enough for our usage, but generic enough so it can be shared across tools while remaining simple to use. * cfg: replace cfg option parsing with the new one. * change spirv-dis parsing + title + summary * clang format * flags: fix static init fiasco & remove help Static initialization order is important, and was working just by sheer luck. Also removing the help generation tooling. It's less flexible than the hand-written string, and making it as-good and as-flexible brings too much complexity. * review feedback
100 lines
3.1 KiB
C++
100 lines
3.1 KiB
C++
// Copyright (c) 2015-2016 The Khronos Group Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy 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,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <cstdio>
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#include <cstring>
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#include <sstream>
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#include <string>
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#include <vector>
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#include "spirv-tools/libspirv.h"
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#include "tools/cfg/bin_to_dot.h"
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#include "tools/io.h"
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#include "tools/util/flags.h"
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static const auto kDefaultEnvironment = SPV_ENV_UNIVERSAL_1_6;
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static const std::string kHelpText =
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R"(%s - Show the control flow graph in GraphiViz "dot" form. EXPERIMENTAL
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Usage: %s [options] [<filename>]
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The SPIR-V binary is read from <filename>. If no file is specified,
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or if the filename is "-", then the binary is read from standard input.
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Options:
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-h, --help Print this help.
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--version Display version information.
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-o <filename> Set the output filename.
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Output goes to standard output if this option is
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not specified, or if the filename is "-".
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)";
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// clang-format off
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FLAG_SHORT_bool( h, /* default_value= */ false, /* required= */ false);
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FLAG_LONG_bool( help, /* default_value= */ false, /* required= */false);
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FLAG_LONG_bool( version, /* default_value= */ false, /* required= */ false);
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FLAG_SHORT_string(o, /* default_value= */ "", /* required= */ false);
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// clang-format on
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int main(int, const char** argv) {
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if (!flags::Parse(argv)) {
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return 1;
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}
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if (flags::h.value() || flags::help.value()) {
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printf(kHelpText.c_str(), argv[0], argv[0]);
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return 0;
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}
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if (flags::version.value()) {
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printf("%s EXPERIMENTAL\n", spvSoftwareVersionDetailsString());
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printf("Target: %s\n", spvTargetEnvDescription(kDefaultEnvironment));
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return 0;
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}
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if (flags::positional_arguments.size() != 1) {
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fprintf(stderr, "error: exactly one input file must be specified.\n");
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return 1;
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}
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std::string inFile = flags::positional_arguments[0];
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std::string outFile = flags::o.value();
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// Read the input binary.
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std::vector<uint32_t> contents;
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if (!ReadBinaryFile<uint32_t>(inFile.c_str(), &contents)) return 1;
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spv_context context = spvContextCreate(kDefaultEnvironment);
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spv_diagnostic diagnostic = nullptr;
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std::stringstream ss;
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auto error =
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BinaryToDot(context, contents.data(), contents.size(), &ss, &diagnostic);
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if (error) {
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spvDiagnosticPrint(diagnostic);
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spvDiagnosticDestroy(diagnostic);
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spvContextDestroy(context);
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return error;
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}
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std::string str = ss.str();
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WriteFile(outFile.empty() ? nullptr : outFile.c_str(), "w", str.data(),
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str.size());
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spvDiagnosticDestroy(diagnostic);
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spvContextDestroy(context);
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return 0;
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}
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