1*5c2921b0SApple OSS Distributionsfrom __future__ import absolute_import, print_function 2*5c2921b0SApple OSS Distributions 3*5c2921b0SApple OSS Distributionsfrom builtins import range 4*5c2921b0SApple OSS Distributions 5*5c2921b0SApple OSS Distributionsfrom xnu import * 6*5c2921b0SApple OSS Distributionsfrom scheduler import GetRecentTimestamp 7*5c2921b0SApple OSS Distributionsimport xnudefines 8*5c2921b0SApple OSS Distributions 9*5c2921b0SApple OSS Distributionsulock_types = { 10*5c2921b0SApple OSS Distributions 1: "COMPARE_AND_WAIT", 11*5c2921b0SApple OSS Distributions 2: "UNFAIR_LOCK", 12*5c2921b0SApple OSS Distributions 3: "UNFAIR_LOCK64_SHARED", 13*5c2921b0SApple OSS Distributions 4: "COMPARE_AND_WAIT64", 14*5c2921b0SApple OSS Distributions 5: "COMPARE_AND_WAIT64_SHARED" 15*5c2921b0SApple OSS Distributions} 16*5c2921b0SApple OSS Distributions 17*5c2921b0SApple OSS Distributions@header("{:<20s} {:<20s} {:<20s} {:<10s} {:<20s} {:<20s} {:<20s}".format( 18*5c2921b0SApple OSS Distributions 'ull_t', 'kind', 'addr/obj', 'pid/offs', 'owner', 'turnstile', 'waiters')) 19*5c2921b0SApple OSS Distributionsdef GetUlockSummary(ull): 20*5c2921b0SApple OSS Distributions code = int(ull.ull_opcode) 21*5c2921b0SApple OSS Distributions if code in ulock_types: 22*5c2921b0SApple OSS Distributions ull_type = ulock_types[code] 23*5c2921b0SApple OSS Distributions else: 24*5c2921b0SApple OSS Distributions ull_type = "{:#x}".format(code) 25*5c2921b0SApple OSS Distributions 26*5c2921b0SApple OSS Distributions s = "{ull: <#20x} {ull_type: <20s}".format(ull=ull, ull_type=ull_type) 27*5c2921b0SApple OSS Distributions ulk=ull.ull_key 28*5c2921b0SApple OSS Distributions if int(ulk.ulk_key_type) == 1: 29*5c2921b0SApple OSS Distributions s += " {ulk.ulk_addr: <#20x} {ulk.ulk_pid: <10d}".format(ulk=ulk) 30*5c2921b0SApple OSS Distributions elif int(ulk.ulk_key_type) == 2: 31*5c2921b0SApple OSS Distributions s += " {ulk.ulk_object: <#20x} {ulk.ulk_offset: <10d}".format(ulk=ulk) 32*5c2921b0SApple OSS Distributions else: 33*5c2921b0SApple OSS Distributions s += " {:<20s} {:<10s}".format("", "") 34*5c2921b0SApple OSS Distributions 35*5c2921b0SApple OSS Distributions return s + " {ull.ull_owner: <#20x} {ull.ull_turnstile: <#20x} {ull.ull_nwaiters: >7d}".format(ull=ull) 36*5c2921b0SApple OSS Distributions 37*5c2921b0SApple OSS Distributions@lldb_command('showallulocks', fancy=True) 38*5c2921b0SApple OSS Distributionsdef ShowAllUlocks(cmd_args=None, cmd_options={}, O=None): 39*5c2921b0SApple OSS Distributions """ Display a summary of all the ulocks in the system 40*5c2921b0SApple OSS Distributions 41*5c2921b0SApple OSS Distributions usage: showallulocks 42*5c2921b0SApple OSS Distributions """ 43*5c2921b0SApple OSS Distributions 44*5c2921b0SApple OSS Distributions with O.table(GetUlockSummary.header): 45*5c2921b0SApple OSS Distributions count = kern.globals.ull_hash_buckets; 46*5c2921b0SApple OSS Distributions buckets = kern.globals.ull_bucket 47*5c2921b0SApple OSS Distributions for i in range(0, count): 48*5c2921b0SApple OSS Distributions for ull in IterateLinkageChain(addressof(buckets[i].ulb_head), 'ull_t *', 'ull_hash_link'): 49*5c2921b0SApple OSS Distributions print(GetUlockSummary(ull)) 50