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// Copyright (c) 2015-2016 The Khronos Group Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <cassert>
#include <cstdio>
#include <cstring>
#include <vector>
#include "source/spirv_target_env.h"
#include "spirv-tools/libspirv.h"
#include "tools/io.h"
#include "tools/util/flags.h"
constexpr auto kDefaultTarget = SPV_ENV_UNIVERSAL_1_6;
static const std::string kHelpText =
R"(%s - Create a SPIR-V binary module from SPIR-V assembly text
Usage: %s [options] [<filename>]
The SPIR-V assembly text is read from <filename>.
Use "-" as the filename to read from standard input.
Use "./-" to read from the file named "-".
The SPIR-V binary module is written to file "out.spv", unless the -o option
is used.
Options:
-h, --help Print this help.
-o <filename> Set the output filename. Use '-' to mean stdout.
--version Display assembler version information.
--preserve-numeric-ids
Numeric IDs in the binary will have the same values as in the
source. Non-numeric IDs are allocated by filling in the gaps,
starting with 1 and going up.
--target-env %s
Use specified environment.
)";
// clang-format off
// flag name= default_value= required=
FLAG_SHORT_bool( h, false, false);
FLAG_LONG_bool( help, false, false);
FLAG_LONG_bool( version, false, false);
FLAG_LONG_bool( preserve_numeric_ids, false, false);
FLAG_SHORT_string(o, "", false);
FLAG_LONG_string( target_env, "", false);
// clang-format on
int main(int, const char** argv) {
if (!flags::Parse(argv)) {
return 1;
}
if (flags::h.value() || flags::help.value()) {
const std::string target_env_list = spvTargetEnvList(19, 80);
printf(kHelpText.c_str(), argv[0], argv[0], target_env_list.c_str());
return 0;
}
if (flags::version.value()) {
printf("%s\n", spvSoftwareVersionDetailsString());
printf("Target: %s\n", spvTargetEnvDescription(kDefaultTarget));
return 0;
}
std::string outFile = flags::o.value();
if (outFile.empty()) {
outFile = "out.spv";
}
uint32_t options = 0;
if (flags::preserve_numeric_ids.value()) {
options |= SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS;
}
if (flags::positional_arguments.size() > 1) {
fprintf(stderr, "error: one input file at most must be specified.\n");
return 1;
}
std::string inFile = flags::positional_arguments.size() == 1
? flags::positional_arguments[0]
: "-";
std::vector<char> contents;
if (!ReadTextFile(inFile.c_str(), &contents)) return 1;
// Can only deduce target after the file has been read
spv_target_env target_env;
if (flags::target_env.value().empty()) {
if (!spvReadEnvironmentFromText(contents, &target_env)) {
// Revert to default version since deduction failed
target_env = kDefaultTarget;
}
} else if (!spvParseTargetEnv(flags::target_env.value().c_str(),
&target_env)) {
fprintf(stderr, "error: Unrecognized target env: %s\n",
flags::target_env.value().c_str());
return 1;
}
spv_binary binary;
spv_diagnostic diagnostic = nullptr;
spv_context context = spvContextCreate(target_env);
spv_result_t error = spvTextToBinaryWithOptions(
context, contents.data(), contents.size(), options, &binary, &diagnostic);
spvContextDestroy(context);
if (error) {
spvDiagnosticPrint(diagnostic);
spvDiagnosticDestroy(diagnostic);
return error;
}
if (!WriteFile<uint32_t>(outFile.c_str(), "wb", binary->code,
binary->wordCount)) {
spvBinaryDestroy(binary);
return 1;
}
spvBinaryDestroy(binary);
return 0;
}
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