+#include <libgen.h>
#include "private.h"
static mc_mem_region_t MC_region_new(void *start_addr, size_t size);
void MC_take_snapshot(mc_snapshot_t snapshot)
{
- unsigned int i;
+ unsigned int i = 0;
+ char copy = 0;
s_map_region reg;
memory_map_t maps = get_memory_map();
- /* Save all the writable mapped pages except the raw_heap and the stack */
- for (i = 0; i < maps->mapsize; i++) {
- reg = maps->regions[i];
- if((reg.prot & PROT_WRITE) && reg.start_addr != raw_heap
- && (reg.pathname == NULL || strncmp(reg.pathname, "[stack]", 7))){
- MC_snapshot_add_region(snapshot, reg.start_addr,
- (char*)reg.end_addr - (char*)reg.start_addr);
+ /* Save the std heap and the writtable mapped pages of libsimgrid */
+ while(i < maps->mapsize
+ && (maps->regions[i].pathname == NULL
+ || memcmp(maps->regions[i].pathname, "/lib/ld", 7))){
+ reg = maps->regions[i];
+ if((reg.prot & PROT_WRITE)){
+ if(reg.start_addr == std_heap){
+ MC_snapshot_add_region(snapshot, reg.start_addr,
+ (char*)reg.end_addr - (char*)reg.start_addr);
+
+ }else if(copy || (reg.pathname != NULL
+ && !memcmp(basename(maps->regions[i].pathname), "libsimgrid", 10))){
+ MC_snapshot_add_region(snapshot, reg.start_addr,
+ (char*)reg.end_addr - (char*)reg.start_addr);
+ /* This will force the save of the regions in the next iterations,
+ * but we assume that ld will be found mapped and break the loop
+ * before saving a wrong region.(This is ugly I know). */
+ copy = TRUE;
+ }
+ }
+ i++;
}
- }
+
+ /* FIXME: free the memory map */
}
void MC_restore_snapshot(mc_snapshot_t snapshot)