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/*
* Copyright (c) 2017 The Khronos Group Inc.
* Copyright (c) 2017 Valve Corporation
* Copyright (c) 2017 LunarG, 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.
*
* Author: Lenny Komow <lenny@lunarg.com>
*/
// This code generates an assembly file which provides offsets to get struct members from assembly code.
#include <stdio.h>
#include "loader.h"
int main(int argc, char **argv) {
const char *assembler = NULL;
for (int i = 0; i < argc; ++i) {
if (!strcmp(argv[i], "MASM")) {
assembler = "MASM";
} else if (!strcmp(argv[i], "GAS")) {
assembler = "GAS";
}
}
if (assembler == NULL) {
return 1;
}
struct loader_instance_dispatch_table disp;
size_t offset = (size_t) ((size_t) &disp.phys_dev_ext) - ((size_t) &disp);
FILE *file = fopen("gen_defines.asm", "w");
if (!strcmp(assembler, "MASM")) {
#if !defined(_MSC_VER) || (_MSC_VER >= 1900)
fprintf(file, "\nPHYS_DEV_DISP_OFFSET equ %zu\n", offset);
#else
fprintf(file, "\nPHYS_DEV_DISP_OFFSET equ %lu\n", offset);
#endif
} else if (!strcmp(assembler, "GAS")) {
#if !defined(_MSC_VER)
fprintf(file, "\n.set PHYS_DEV_DISP_OFFSET, %zu\n", offset);
#ifdef __x86_64__
fprintf(file, ".set X86_64, 1\n");
#endif // __x86_64__
#endif // _MSC_VER
}
return fclose(file);
}
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