+/*
+ * Copyright © 2018 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+
+#include "compiler/brw_eu.h"
+#include "dev/gen_device_info.h"
+
+uint64_t INTEL_DEBUG;
+
+/* Return size of file in bytes pointed by fp */
+static size_t
+i965_disasm_get_file_size(FILE *fp)
+{
+ size_t size;
+
+ fseek(fp, 0L, SEEK_END);
+ size = ftell(fp);
+ fseek(fp, 0L, SEEK_SET);
+
+ return size;
+}
+
+static void *
+i965_disasm_read_binary(FILE *fp, size_t *end)
+{
+ void *assembly;
+
+ *end = i965_disasm_get_file_size(fp);
+
+ assembly = malloc(*end + 1);
+ if (assembly == NULL)
+ return NULL;
+
+ fread(assembly, *end, 1, fp);
+ fclose(fp);
+
+ return assembly;
+}
+
+static struct gen_device_info *
+i965_disasm_init(uint16_t pci_id)
+{
+ struct gen_device_info *devinfo;
+
+ devinfo = malloc(sizeof *devinfo);
+ if (devinfo == NULL)
+ return NULL;
+
+ if (!gen_get_device_info(pci_id, devinfo)) {
+ fprintf(stderr, "can't find device information: pci_id=0x%x\n",
+ pci_id);
+ exit(EXIT_FAILURE);
+ }
+
+ /* initialize compaction table in order to handle compacted instructions */
+ brw_init_compaction_tables(devinfo);
+
+ return devinfo;
+}
+
+static void
+print_help(const char *progname, FILE *file)
+{
+ fprintf(file,
+ "Usage: %s [OPTION]...\n"
+ "Disassemble i965 instructions from binary file.\n\n"
+ " --help display this help and exit\n"
+ " --binary-path=PATH read binary file from binary file PATH\n"
+ " --gen=platform disassemble instructions for given \n"
+ " platform (3 letter platform name)\n",
+ progname);
+}
+
+int main(int argc, char *argv[])
+{
+ FILE *fp = NULL;
+ void *assembly = NULL;
+ char *binary_path = NULL;
+ size_t start = 0, end = 0;
+ uint16_t pci_id = 0;
+ int c, i;
+ struct gen_device_info *devinfo;
+
+ bool help = false;
+ const struct option i965_disasm_opts[] = {
+ { "help", no_argument, (int *) &help, true },
+ { "binary-path", required_argument, NULL, 'b' },
+ { "gen", required_argument, NULL, 'g'},
+ { NULL, 0, NULL, 0 }
+ };
+
+ i = 0;
+ while ((c = getopt_long(argc, argv, "", i965_disasm_opts, &i)) != -1) {
+ switch (c) {
+ case 'g': {
+ const int id = gen_device_name_to_pci_device_id(optarg);
+ if (id < 0) {
+ fprintf(stderr, "can't parse gen: '%s', expected 3 letter "
+ "platform name\n", optarg);
+ /* Clean up binary path if given pci id is wrong */
+ if (binary_path) {
+ free(binary_path);
+ fclose(fp);
+ }
+ exit(EXIT_FAILURE);
+ } else {
+ pci_id = id;
+ }
+ break;
+ }
+ case 'b':
+ binary_path = strdup(optarg);
+ fp = fopen(binary_path, "rb");
+ if (!fp) {
+ fprintf(stderr, "Unable to read input binary file : %s\n",
+ binary_path);
+ /* free binary_path if path is wrong */
+ free(binary_path);
+ exit(EXIT_FAILURE);
+ }
+ break;
+ default:
+ /* Clean up binary path if given option is wrong */
+ if (binary_path) {
+ free(binary_path);
+ fclose(fp);
+ }
+ break;
+ }
+ }
+
+ if (help || !binary_path || !pci_id) {
+ print_help(argv[0], stderr);
+ exit(0);
+ }
+
+ devinfo = i965_disasm_init(pci_id);
+ if (!devinfo) {
+ fprintf(stderr, "Unable to allocate memory for "
+ "gen_device_info struct instance.\n");
+ exit(EXIT_FAILURE);
+ }
+
+ assembly = i965_disasm_read_binary(fp, &end);
+ if (!assembly) {
+ fprintf(stderr, "Unable to allocate buffer to read binary file\n");
+ exit(EXIT_FAILURE);
+ }
+
+ /* Disassemble i965 instructions from buffer assembly */
+ brw_disassemble(devinfo, assembly, start, end, stdout);
+
+ free(binary_path);
+ free(assembly);
+ free(devinfo);
+
+ return EXIT_SUCCESS;
+}
projects / mesa.git / commitdiff