-/* Copyright (c) 2008-2022. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2008-2023. 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. */
} else \
((void)0)
-namespace simgrid {
-namespace xbt {
+namespace simgrid::xbt {
/**
* \todo This function contains many cases that do not allow for a
mach_msg_type_number_t info_count = VM_REGION_BASIC_INFO_COUNT;
#endif
- kr =
- mach_vm_region(
- map,
- &address,
- &size,
- flavor,
- (vm_region_info_t)&info,
- &info_count,
- &object);
+ kr = mach_vm_region(map, &address, &size, flavor, (vm_region_info_t)&info, &info_count, &object);
if (kr == KERN_INVALID_ADDRESS) {
break;
- }
- else if (kr != KERN_SUCCESS) {
+
+ } else if (kr != KERN_SUCCESS) {
+ const char* name = nullptr;
+ switch (kr) { // https://github.com/apple/darwin-xnu/blob/main/bsd/kern/stackshot.c#L42
+ case KERN_SUCCESS:
+ name = "kr=KERN_SUCCESS";
+ break;
+ case KERN_RESOURCE_SHORTAGE:
+ name = "kr=KERN_RESOURCE_SHORTAGE (ENOMEM)";
+ break;
+ case KERN_INSUFFICIENT_BUFFER_SIZE:
+ name = "kr=KERN_INSUFFICIENT_BUFFER_SIZE (ENOSPC)";
+ break;
+ case KERN_NO_SPACE:
+ name = "kr=KERN_NO_SPACE (ENOSPC)";
+ break;
+ case KERN_NO_ACCESS:
+ name = "kr=KERN_NO_ACCESS (EPERM)";
+ break;
+ case KERN_MEMORY_PRESENT:
+ name = "kr=KERN_MEMORY_PRESENT (EEXIST)";
+ break;
+ case KERN_NOT_SUPPORTED:
+ name = "kr=KERN_NOT_SUPPORTED (ENOTSUP)";
+ break;
+ case KERN_NOT_IN_SET:
+ name = "kr=KERN_NOT_IN_SET (ENOENT)";
+ break;
+ case KERN_ABORTED:
+ name = "kr=KERN_ABORTED (EINTR)";
+ break;
+ case KERN_FAILURE:
+ name = "kr=KERN_FAILURE (EBUSY)";
+ break;
+ case KERN_OPERATION_TIMED_OUT:
+ name = "kr=KERN_OPERATION_TIMED_OUT (ETIMEDOUT)";
+ break;
+ default:
+ name = "kr=default case (EINVAL)";
+ }
std::perror("mach_vm_region failed");
- std::fprintf(stderr, "Cannot request authorization for kernel information access\n");
+ std::fprintf(stderr, "Cannot request authorization for kernel information access (kr=%d ; %s)\n", (int)kr, name);
abort();
}
#elif defined __linux__
/* Open the actual process's proc maps file and create the memory_map_t */
/* to be returned. */
- std::string path = std::string("/proc/") + std::to_string(pid) + "/maps";
+ std::string path = "/proc/" + std::to_string(pid) + "/maps";
std::ifstream fp;
fp.rdbuf()->pubsetbuf(nullptr, 0);
fp.open(path);
return ret;
}
-}
-}
+} // namespace simgrid::xbt