diff options
Diffstat (limited to 'loader/asm_offset.c')
| -rw-r--r-- | loader/asm_offset.c | 71 |
1 files changed, 68 insertions, 3 deletions
diff --git a/loader/asm_offset.c b/loader/asm_offset.c index 82230b7d5..248d8fba5 100644 --- a/loader/asm_offset.c +++ b/loader/asm_offset.c @@ -68,6 +68,71 @@ struct ValueInfo { const char *comment; }; -// This file is not intended to be executed, as the generated asm contains all the relevant data which -// the parse_asm_values.py script needs to write gen_defines.asm -int main(int argc, char **argv) { return 0; } +// This file can both be executed to produce gen_defines.asm and contains all the relevant data which +// the parse_asm_values.py script needs to write gen_defines.asm, necessary for cross compilation +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[] = { + // clang-format off + { .name = "VULKAN_LOADER_ERROR_BIT", .value = (size_t) VULKAN_LOADER_ERROR_BIT, + .comment = "The numerical value of the enum value 'VULKAN_LOADER_ERROR_BIT'" }, + { .name = "PTR_SIZE", .value = sizeof(void*), + .comment = "The size of a pointer" }, + { .name = "CHAR_PTR_SIZE", .value = sizeof(char *), + .comment = "The size of a 'const char *' struct" }, + { .name = "FUNCTION_OFFSET_INSTANCE", .value = offsetof(struct loader_instance, phys_dev_ext_disp_functions), + .comment = "The offset of 'phys_dev_ext_disp_functions' 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 = "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" }, + // clang-format on + }; + + 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")) { +#if defined(__x86_64__) || defined(__i386__) + const char *comment_delimiter = "#"; +#if defined(__x86_64__) + fprintf(file, ".set X86_64, 1\n"); +#endif // defined(__x86_64__) +#elif defined(__aarch64__) + const char *comment_delimiter = "//"; + fprintf(file, ".set AARCH_64, 1\n"); +#else + // Default comment delimiter + const char *comment_delimiter = "#"; +#endif + for (size_t i = 0; i < sizeof(values) / sizeof(values[0]); ++i) { + fprintf(file, ".set %-32s, " SIZE_T_FMT "%s %s\n", values[i].name, values[i].value, comment_delimiter, + values[i].comment); + } + } + return fclose(file); +} |