1 files changed, 94 insertions, 0 deletions
diff --git a/thirdparty/vulkan/loader/asm_offset.c b/thirdparty/vulkan/loader/asm_offset.c
new file mode 100755
index 0000000000..97832afa03
--- /dev/null
+++ b/thirdparty/vulkan/loader/asm_offset.c
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2017-2018 The Khronos Group Inc.
+ * Copyright (c) 2017-2018 Valve Corporation
+ * Copyright (c) 2017-2018 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"
+
+#if !defined(_MSC_VER) || (_MSC_VER >= 1900)
+#define SIZE_T_FMT "%-8zu"
+#else
+#define SIZE_T_FMT "%-8lu"
+#endif
+
+struct ValueInfo
+{
+    const char *name;
+    size_t value;
+    const char *comment;
+};
+
+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 ValueInfo values[] = {
+        { .name = "VK_DEBUG_REPORT_ERROR_BIT_EXT", .value = (size_t) VK_DEBUG_REPORT_ERROR_BIT_EXT,
+            .comment = "The numerical value of the enum value 'VK_DEBUG_REPORT_ERROR_BIT_EXT'" },
+        { .name = "PTR_SIZE", .value = sizeof(void*),
+            .comment = "The size of a pointer" },
+        { .name = "HASH_SIZE", .value = sizeof(struct loader_dispatch_hash_entry),
+            .comment = "The size of a 'loader_dispatch_hash_entry' struct" },
+        { .name = "HASH_OFFSET_INSTANCE", .value = offsetof(struct loader_instance, phys_dev_ext_disp_hash),
+            .comment = "The offset of 'phys_dev_ext_disp_hash' within a 'loader_instance' struct" },
+        { .name = "PHYS_DEV_OFFSET_INST_DISPATCH", .value = offsetof(struct loader_instance_dispatch_table, phys_dev_ext),
+            .comment = "The offset of 'phys_dev_ext' within in 'loader_instance_dispatch_table' struct" },
+        { .name = "PHYS_DEV_OFFSET_PHYS_DEV_TRAMP", .value = offsetof(struct loader_physical_device_tramp, phys_dev),
+            .comment = "The offset of 'phys_dev' within a 'loader_physical_device_tramp' struct" },
+        { .name = "ICD_TERM_OFFSET_PHYS_DEV_TERM", .value = offsetof(struct loader_physical_device_term, this_icd_term),
+            .comment = "The offset of 'this_icd_term' within a 'loader_physical_device_term' struct" },
+        { .name = "PHYS_DEV_OFFSET_PHYS_DEV_TERM", .value = offsetof(struct loader_physical_device_term, phys_dev),
+            .comment = "The offset of 'phys_dev' within a 'loader_physical_device_term' struct" },
+        { .name = "INSTANCE_OFFSET_ICD_TERM", .value = offsetof(struct loader_icd_term, this_instance),
+            .comment = "The offset of 'this_instance' within a 'loader_icd_term' struct" },
+        { .name = "DISPATCH_OFFSET_ICD_TERM", .value = offsetof(struct loader_icd_term, phys_dev_ext),
+            .comment = "The offset of 'phys_dev_ext' within a 'loader_icd_term' struct" },
+        { .name = "FUNC_NAME_OFFSET_HASH", .value = offsetof(struct loader_dispatch_hash_entry, func_name),
+            .comment = "The offset of 'func_name' within a 'loader_dispatch_hash_entry' struct" },
+        { .name = "EXT_OFFSET_DEVICE_DISPATCH", .value = offsetof(struct loader_dev_dispatch_table, ext_dispatch),
+            .comment = "The offset of 'ext_dispatch' within a 'loader_dev_dispatch_table' struct" },
+    };
+
+    FILE *file = fopen("gen_defines.asm", "w");
+    fprintf(file, "\n");
+    if (!strcmp(assembler, "MASM")) {
+        for (size_t i = 0; i < sizeof(values)/sizeof(values[0]); ++i) {
+            fprintf(file, "%-32s equ " SIZE_T_FMT "; %s\n", values[i].name, values[i].value, values[i].comment);
+        }
+    } else if (!strcmp(assembler, "GAS")) {
+#ifdef __x86_64__
+        fprintf(file, ".set X86_64, 1\n");
+#endif // __x86_64__
+        for (size_t i = 0; i < sizeof(values)/sizeof(values[0]); ++i) {
+            fprintf(file, ".set %-32s, " SIZE_T_FMT "# %s\n", values[i].name, values[i].value, values[i].comment);
+        }
+    }
+    return fclose(file);
+}