#include <sys/types.h>
#ifdef __linux__
# include <sys/mman.h>
+#elif defined __FreeBSD__
+# include <sys/types.h>
+# include <sys/mman.h>
+# include <sys/param.h>
+# include <sys/queue.h>
+# include <sys/socket.h>
+# include <sys/sysctl.h>
+# include <sys/user.h>
+# include <libprocstat.h>
#endif
#include <xbt/sysdep.h>
*/
XBT_PRIVATE std::vector<VmMap> get_memory_map(pid_t pid)
{
+ std::vector<VmMap> ret;
#ifdef __linux__
/* Open the actual process's proc maps file and create the memory_map_t */
/* to be returned. */
free(path);
setbuf(fp, nullptr);
- std::vector<VmMap> ret;
-
/* Read one line at the time, parse it and add it to the memory map to be returned */
ssize_t read; /* Number of bytes readed */
char* line = nullptr;
if (memreg.prot == 0)
memreg.prot |= PROT_NONE;
- if (lfields[1][3] == 'p')
+ if (lfields[1][3] == 'p') {
memreg.flags |= MAP_PRIVATE;
- else if (lfields[1][3] == 's')
+ } else {
memreg.flags |= MAP_SHARED;
- else {
- xbt_die("Flag was neither 'p' (private) nor 's' (shared). This should have never happened! Instead, the permissions column was set to: %s\n"
- "This was the whole line that caused the trouble: %s", lfields[1], line);
+ 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 */
std::free(line);
std::fclose(fp);
- return ret;
+#elif defined __FreeBSD__
+ struct procstat *prstat;
+ struct kinfo_proc *proc;
+ struct kinfo_vmentry *vmentries;
+ unsigned int cnt;
+
+ if ((prstat = procstat_open_sysctl()) == NULL) {
+ std::perror("procstat_open_sysctl failed");
+ xbt_die("Cannot access kernel state information");
+ }
+ if ((proc = procstat_getprocs(prstat, KERN_PROC_PID, pid, &cnt)) == NULL) {
+ std::perror("procstat_open_sysctl failed");
+ xbt_die("Cannot access process information");
+ }
+ if ((vmentries = procstat_getvmmap(prstat, proc, &cnt)) == NULL) {
+ std::perror("procstat_getvmmap failed");
+ xbt_die("Cannot access process memory mappings");
+ }
+ for (unsigned int i = 0; i < cnt; i++) {
+ VmMap memreg;
+
+ /* Addresses */
+ memreg.start_addr = vmentries[i].kve_start;
+ memreg.end_addr = vmentries[i].kve_end;
+
+ /* Permissions */
+ memreg.prot = 0;
+ if (vmentries[i].kve_protection & KVME_PROT_READ)
+ memreg.prot |= PROT_READ;
+ if (vmentries[i].kve_protection & KVME_PROT_WRITE)
+ memreg.prot |= PROT_WRITE;
+ if (vmentries[i].kve_protection & KVME_PROT_EXEC)
+ memreg.prot |= PROT_EXEC;
+ if (memreg.prot == 0)
+ memreg.prot |= PROT_NONE;
+
+ /* Private (copy-on-write) or shared? */
+ if (vmentries[i].kve_flags & KVME_FLAG_COW)
+ memreg.flags |= MAP_PRIVATE;
+ else
+ memreg.flags |= MAP_SHARED;
+
+ /* Offset */
+ memreg.offset = vmentries[i].kve_offset;
+
+ /* Device : not sure this can be mapped to something outside of Linux? */
+ memreg.dev_major = 0;
+ memreg.dev_minor = 0;
+
+ /* Inode */
+ memreg.inode = vmentries[i].kve_vn_fileid;
+
+ /*
+ * Path. Linuxize result by giving an anonymous mapping a path from
+ * the previous mapping... provided previous is vnode and has a path.
+ */
+ if (vmentries[i].kve_path[0] != '\0')
+ memreg.pathname = vmentries[i].kve_path;
+ else if (vmentries[i].kve_type == KVME_TYPE_DEFAULT
+ && vmentries[i-1].kve_type == KVME_TYPE_VNODE
+ && vmentries[i-1].kve_path[0] != '\0')
+ memreg.pathname = vmentries[i-1].kve_path;
+
+ ret.push_back(std::move(memreg));
+ }
+ procstat_freevmmap(prstat, vmentries);
+ procstat_freeprocs(prstat, proc);
+ procstat_close(prstat);
#else
- /* On FreeBSD, kinfo_getvmmap() could be used but mmap() support is disabled anyway. */
xbt_die("Could not get memory map from process %lli", (long long int) pid);
#endif
+ return ret;
}
}