namespace simgrid {
namespace xbt {
+/**
+ * \todo This function contains many cases that do not allow for a
+ * recovery. Currently, xbt_abort() is called but we should
+ * much rather die with the specific reason so that it's easier
+ * to find out what's going on.
+ */
XBT_PRIVATE std::vector<VmMap> get_memory_map(pid_t pid)
{
#ifdef __linux__
char* line = nullptr;
std::size_t n = 0; /* Amount of bytes to read by xbt_getline */
while ((read = xbt_getline(&line, &n, fp)) != -1) {
+ /**
+ * The lines that we read have this format: (This is just an example)
+ * 00602000-00603000 rw-p 00002000 00:28 1837264 <complete-path-to-file>
+ */
//fprintf(stderr,"%s", line);
/* Wipeout the new line character */
line[read - 1] = '\0';
- /* Tokenize the line using spaces as delimiters and store each token in lfields array. We expect 5 tokens/fields */
+ /* Tokenize the line using spaces as delimiters and store each token in lfields array. We expect 5 tokens for 6 fields */
char* lfields[6];
lfields[0] = strtok(line, " ");
if (memreg.prot == 0)
memreg.prot |= PROT_NONE;
- if (lfields[1][4] == 'p')
+ if (lfields[1][3] == 'p') {
memreg.flags |= MAP_PRIVATE;
- else if (lfields[1][4] == 's')
+ } else {
memreg.flags |= MAP_SHARED;
+ if (lfields[1][3] != 's')
+ XBT_WARN("The protection is neither 'p' (private) nor 's' (shared) but '%s'. Let's assume shared, as on b0rken win-ubuntu systems.\nFull line: %s\n",
+ lfields[1], line);
+ }
/* Get the offset value */
memreg.offset = std::strtoull(lfields[2], &endptr, 16);