+/* struct_diff -- little tool to see which structure's field are modified on mc_diff */
+
+/* Copyright (c) 2012. The SimGrid Team. All rights reserved. */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "xbt.h"
+#include "xbt/datadesc.h"
+#include "../../src/xbt/datadesc/datadesc_private.h" // RAAAAH! ugly relative path, but it's late, I want it to be done NOW.
+#include "simix/datatypes.h"
+#include "../../src/simix/smx_smurf_private.h" // RAAAAH! ugly relative path, but it's even later and it still doesn't work
+
+static void define_types(void) {
+ xbt_datadesc_type_t desc;
+
+ /* typedef struct xbt_swag_hookup {
+ * void *next;
+ * void *prev;
+ * } s_xbt_swag_hookup_t; */
+ desc = xbt_datadesc_struct("s_xbt_swag_hookup_t");
+ xbt_datadesc_struct_append(desc,"next",xbt_datadesc_by_name("data pointer"));
+ xbt_datadesc_struct_append(desc,"prev",xbt_datadesc_by_name("data pointer"));
+ xbt_datadesc_struct_close(desc);
+
+ /* FIXME: maybe we should provide the internal details */
+ xbt_datadesc_copy("smx_host_t",xbt_datadesc_by_name("data pointer"));
+ xbt_datadesc_copy("smx_context_t",xbt_datadesc_by_name("data pointer"));
+ xbt_datadesc_copy("smx_action_t",xbt_datadesc_by_name("data pointer"));
+ xbt_datadesc_copy("xbt_dict_t",xbt_datadesc_by_name("data pointer"));
+ xbt_datadesc_copy("xbt_fifo_t",xbt_datadesc_by_name("data pointer"));
+ xbt_datadesc_copy("smx_process_t",xbt_datadesc_by_name("data pointer"));
+
+ /* typedef struct {
+ * char *msg;
+ * xbt_errcat_t category;
+
+ * int value;
+ * short int remote;
+ * char *host;
+ * char *procname;
+ *
+ * int pid;
+ * char *file;
+ * int line;
+ * char *func;
+
+ * int used;
+ * char **bt_strings;
+ * void *bt[XBT_BACKTRACE_SIZE];
+ * } xbt_ex_t; */
+ desc = xbt_datadesc_struct("xbt_ex_t");
+ xbt_datadesc_struct_append(desc,"msg",xbt_datadesc_by_name("string"));
+
+ xbt_assert(sizeof(xbt_errcat_t)==sizeof(int),
+ "I was assuming that xbt_errcat_t is of the same size than integer, but it's not true: it's %zu (int:%zu)\n",
+ sizeof(xbt_errcat_t),sizeof(int));
+ xbt_datadesc_struct_append(desc,"category",xbt_datadesc_by_name("short int"));
+
+ xbt_datadesc_struct_append(desc,"value",xbt_datadesc_by_name("short int"));
+ xbt_datadesc_struct_append(desc,"remote",xbt_datadesc_by_name("short int"));
+ xbt_datadesc_struct_append(desc,"host",xbt_datadesc_by_name("string"));
+ xbt_datadesc_struct_append(desc,"procname",xbt_datadesc_by_name("string"));
+ xbt_datadesc_struct_append(desc,"pid",xbt_datadesc_by_name("int"));
+ xbt_datadesc_struct_append(desc,"file",xbt_datadesc_by_name("string"));
+ xbt_datadesc_struct_append(desc,"line",xbt_datadesc_by_name("int"));
+ xbt_datadesc_struct_append(desc,"func",xbt_datadesc_by_name("string"));
+ xbt_datadesc_struct_append(desc,"used",xbt_datadesc_by_name("int"));
+ xbt_datadesc_struct_append(desc,"bt_strings",xbt_datadesc_by_name("data pointer"));
+ xbt_datadesc_struct_append(desc,"bt",xbt_datadesc_array_fixed("xbt_bt",xbt_datadesc_by_name("data pointer"),XBT_BACKTRACE_SIZE));
+ xbt_datadesc_struct_close(desc);
+
+ /* typedef struct {
+ * __ex_mctx_t *ctx_mctx;
+ * volatile int ctx_caught;
+ * volatile xbt_ex_t exception;
+ * } xbt_running_ctx_t; */
+ desc = xbt_datadesc_struct("xbt_running_ctx_t");
+ xbt_datadesc_struct_append(desc,"ctx_mctx",xbt_datadesc_by_name("data pointer"));
+ xbt_datadesc_struct_append(desc,"ctx_caught",xbt_datadesc_by_name("int"));
+ xbt_datadesc_struct_append(desc,"exception",xbt_datadesc_by_name("int"));
+ xbt_datadesc_struct_close(desc);
+
+ xbt_assert(sizeof(e_smx_simcall_t)==sizeof(int),
+ "I was assuming that e_smx_simcall_t is of the same size than integer, but it's not true: it's %zu (int:%zu)\n",
+ sizeof(e_smx_simcall_t),sizeof(int));
+ xbt_datadesc_copy("e_smx_simcall_t", xbt_datadesc_by_name("int"));
+}
+
+static void parse_from_file(const char *name){
+ int in=open(name,O_RDONLY);
+ if (in==-1){
+ fprintf(stderr,"Cannot read structure file from %s: %s\n",name,strerror(errno));
+ exit(1);
+ }
+
+ xbt_strbuff_t strbuff = xbt_strbuff_new();
+ int r;
+ do {
+ char buffer[1024];
+ r = read(in,&buffer,1023);
+ buffer[r] = '\0';
+ xbt_strbuff_append(strbuff,buffer);
+ } while (r!=0);
+
+ printf("File %s content:\n%s\n",name,strbuff->data);
+ xbt_datadesc_parse(name,strbuff->data);
+
+}
+
+int main(int argc, char** argv) {
+ xbt_init(&argc, argv);
+ define_types();
+
+ if (argc<3) {
+ fprintf(stderr,"Usage: %s struct-file offset1 offset2 ...\n",argv[0]);
+ exit(1);
+ }
+
+ parse_from_file("s_smx_simcall_t");
+ parse_from_file(argv[1]);
+
+ int cpt;
+ xbt_datadesc_type_t type = xbt_datadesc_by_name(argv[1]);
+ for (cpt=2;cpt<argc;cpt++) {
+ int offset = atoi(argv[cpt]);
+ unsigned int cursor;
+ xbt_dd_cat_field_t field;
+ int found = 0;
+
+ printf ("Offset: %d in struct %s (there is %lu fields)\n",
+ offset, type->name, xbt_dynar_length(type->category.struct_data.fields));
+ xbt_dynar_foreach(type->category.struct_data.fields,cursor,field) {
+ if (field->offset[GRAS_THISARCH]<= offset&&
+ field->offset[GRAS_THISARCH]+field->type->size[GRAS_THISARCH] >= offset) {
+ found = 1;
+ printf("This offset is somewhere in field %s, which starts at offset %zu and is of size %zu\n",
+ field->name,field->offset[GRAS_THISARCH],field->type->size[GRAS_THISARCH]);
+
+ }
+ }
+ if (!found) {
+
+ printf("Damnit, the structure is too short to find the the field (last field %s was at offset %zu, with size %zu). Weird.\n",
+ field->name,field->offset[GRAS_THISARCH],field->type->size[GRAS_THISARCH]);
+ }
+ }
+ return 0;
+}
+
+
+