| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "src/kallsyms/lazy_kernel_symbolizer.h" |
| |
| #include <cinttypes> |
| |
| #include "perfetto/ext/base/file_utils.h" |
| #include "perfetto/ext/base/temp_file.h" |
| |
| #include "test/gtest_and_gmock.h" |
| |
| namespace perfetto { |
| namespace { |
| |
| const char kUnrestrictedKallsyms[] = R"( |
| 0000000000000000 A fixed_percpu_data |
| 0000000000000000 A __per_cpu_start |
| 0000000000001000 A cpu_debug_store |
| 0000000000002000 A irq_stack_backing_store |
| 0000000000006000 A cpu_tss_rw |
| 0000000000009000 A gdt_page |
| 000000000000a000 A entry_stack_storage |
| 000000000000b000 A exception_stacks |
| 0000000000010000 A espfix_stack |
| 0000000000010008 A espfix_waddr |
| 0000000000010010 A cpu_llc_id |
| 0000000000010020 A mce_banks_array |
| 0000000000010220 A mce_num_banks |
| 0000000000010228 A cpu_sibling_map |
| 0000000000010230 A cpu_core_map |
| 0000000000010238 A cpu_die_map |
| 0000000000010240 A cpu_info |
| 0000000000010330 A cpu_llc_shared_map |
| 0000000000010338 A cpu_number |
| 0000000000010340 A this_cpu_off |
| 0000000000010348 A x86_cpu_to_apicid |
| 000000000001034a A x86_bios_cpu_apicid |
| 000000000001034c A x86_cpu_to_acpiid |
| 0000000000010350 A sched_core_priority |
| 0000000000011000 A svm_data |
| 0000000000011008 A current_tsc_ratio |
| 0000000000011010 A saved_epb |
| 0000000000011018 A cluster_masks |
| 0000000000011020 A x86_cpu_to_logical_apicid |
| 0000000000011028 A ipi_mask |
| 0000000000011030 A menu_devices |
| 0000000000011098 A cpu_loops_per_jiffy |
| 00000000000110a0 A cpu_hw_events |
| 00000000000123b0 A pmc_prev_left |
| 00000000000125b0 A perf_nmi_tstamp |
| 0000000000013000 A bts_ctx |
| 0000000000016000 A insn_buffer |
| 0000000000016008 A pt_ctx |
| 00000000000160b0 A cpu_tsc_khz |
| 00000000000160b8 A current_vcpu |
| 00000000000160c0 A loaded_vmcss_on_cpu |
| 00000000000160d0 A current_vmcs |
| 00000000000160d8 A vmxarea |
| 00000000000160e0 A blocked_vcpu_on_cpu |
| 00000000000160f0 A blocked_vcpu_on_cpu_lock |
| 00000000000160f8 A irq_regs |
| 0000000000016100 A nmi_state |
| 0000000000016108 A nmi_cr2 |
| 0000000000016110 A update_debug_stack |
| 0000000000016118 A last_nmi_rip |
| 0000000000016120 A nmi_stats |
| 0000000000016130 A swallow_nmi |
| 0000000000016140 A vector_irq |
| 0000000000028458 A processor_device_array |
| 0000000000028460 A acpi_cpuidle_device |
| 0000000000028470 A acpi_cstate |
| 00000000000284c0 A cpufreq_thermal_reduction_pctg |
| 00000000000284c8 A cpc_desc_ptr |
| 00000000000284d0 A cpu_pcc_subspace_idx |
| 00000000000284d8 A irq_randomness |
| 00000000000284f8 A batched_entropy_u64 |
| 0000000000028540 A batched_entropy_u32 |
| 00000000000285c0 A drm_unplug_srcu_srcu_data |
| 0000000000028740 A device_links_srcu_srcu_data |
| 00000000000288c0 A cpu_sys_devices |
| 00000000000288c8 A ci_cpu_cacheinfo |
| 00000000000288e0 A ci_cache_dev |
| 00000000000288e8 A ci_index_dev |
| 0000000000028900 A wakeup_srcu_srcu_data |
| 0000000000028a80 A flush_idx |
| 0000000000028ac0 A dax_srcu_srcu_data |
| 0000000000028c40 A cpufreq_cpu_data |
| 0000000000028c80 A cpufreq_transition_notifier_list_head_srcu_data |
| 0000000000028e00 A cpu_dbs |
| 0000000000028e30 A cpuidle_devices |
| 0000000000028e38 A cpuidle_dev |
| 00000000000290f8 A netdev_alloc_cache |
| 0000000000029110 A napi_alloc_cache |
| 0000000000029330 A flush_works |
| 0000000000029360 A bpf_redirect_info |
| 0000000000029388 A bpf_sp |
| 0000000000029588 A nf_skb_duplicated |
| 000000000002958c A xt_recseq |
| 0000000000029590 A rt_cache_stat |
| 00000000000295b0 A tsq_tasklet |
| 00000000000295e8 A xfrm_trans_tasklet |
| 0000000000029628 A radix_tree_preloads |
| 0000000000029640 A irq_stat |
| 00000000000296c0 A cyc2ns |
| 0000000000029700 A cpu_tlbstate |
| 0000000000029780 A flush_tlb_info |
| 00000000000297c0 A cpu_worker_pools |
| 0000000000029ec0 A runqueues |
| 000000000002aa80 A sched_clock_data |
| 000000000002aac0 A osq_node |
| 000000000002ab00 A qnodes |
| 000000000002ab40 A rcu_data |
| 000000000002ae80 A cfd_data |
| 000000000002aec0 A call_single_queue |
| 000000000002af00 A csd_data |
| 000000000002af40 A softnet_data |
| 000000000002b200 A rt_uncached_list |
| 000000000002b240 A rt6_uncached_list |
| 000000000002b258 A __per_cpu_end |
| ffffffffb7e00000 T startup_64 |
| ffffffffb7e00000 T _stext |
| ffffffffb7e00000 T _text |
| ffffffffb7e00030 T secondary_startup_64 |
| ffffffffb7e000e0 T verify_cpu |
| ffffffffb7e001e0 T start_cpu0 |
| ffffffffb7e001f0 T __startup_64 |
| )"; |
| |
| const char kRestrictedKallsyms[] = R"( |
| 0000000000000000 A fixed_percpu_data |
| 0000000000000000 A __per_cpu_start |
| 0000000000000000 A cpu_debug_store |
| 0000000000000000 A irq_stack_backing_store |
| 0000000000000000 A cpu_tss_rw |
| 0000000000000000 A gdt_page |
| 0000000000000000 A entry_stack_storage |
| 0000000000000000 A exception_stacks |
| 0000000000000000 A espfix_stack |
| 0000000000000000 A espfix_waddr |
| 0000000000000000 A cpu_llc_id |
| 0000000000000000 A mce_banks_array |
| 0000000000000000 A mce_num_banks |
| 0000000000000000 A cpu_sibling_map |
| 0000000000000000 A cpu_core_map |
| 0000000000000000 A cpu_die_map |
| 0000000000000000 A cpu_info |
| 0000000000000000 A cpu_llc_shared_map |
| 0000000000000000 A cpu_number |
| 0000000000000000 A this_cpu_off |
| 0000000000000000 A x86_cpu_to_apicid |
| 0000000000000000 A x86_bios_cpu_apicid |
| 0000000000000000 A x86_cpu_to_acpiid |
| 0000000000000000 A sched_core_priority |
| 0000000000000000 A svm_data |
| 0000000000000000 A current_tsc_ratio |
| 0000000000000000 A saved_epb |
| 0000000000000000 A cluster_masks |
| 0000000000000000 A x86_cpu_to_logical_apicid |
| 0000000000000000 A ipi_mask |
| 0000000000000000 A menu_devices |
| 0000000000000000 A cpu_loops_per_jiffy |
| 0000000000000000 A cpu_hw_events |
| 0000000000000000 A pmc_prev_left |
| 0000000000000000 A perf_nmi_tstamp |
| 0000000000000000 A bts_ctx |
| 0000000000000000 A insn_buffer |
| 0000000000000000 A pt_ctx |
| 0000000000000000 A cpu_tsc_khz |
| 0000000000000000 A current_vcpu |
| 0000000000000000 A loaded_vmcss_on_cpu |
| 0000000000000000 A current_vmcs |
| 0000000000000000 A vmxarea |
| 0000000000000000 A blocked_vcpu_on_cpu |
| 0000000000000000 A blocked_vcpu_on_cpu_lock |
| 0000000000000000 A irq_regs |
| 0000000000000000 A nmi_state |
| 0000000000000000 A nmi_cr2 |
| 0000000000000000 A update_debug_stack |
| 0000000000000000 A last_nmi_rip |
| 0000000000000000 A nmi_stats |
| 0000000000000000 A swallow_nmi |
| 0000000000000000 A vector_irq |
| 0000000000000000 A processor_device_array |
| 0000000000000000 A acpi_cpuidle_device |
| 0000000000000000 A acpi_cstate |
| 0000000000000000 A cpufreq_thermal_reduction_pctg |
| 0000000000000000 A cpc_desc_ptr |
| 0000000000000000 A cpu_pcc_subspace_idx |
| 0000000000000000 A irq_randomness |
| 0000000000000000 A batched_entropy_u64 |
| 0000000000000000 A batched_entropy_u32 |
| 0000000000000000 A drm_unplug_srcu_srcu_data |
| 0000000000000000 A device_links_srcu_srcu_data |
| 0000000000000000 A cpu_sys_devices |
| 0000000000000000 A ci_cpu_cacheinfo |
| 0000000000000000 A ci_cache_dev |
| 0000000000000000 A ci_index_dev |
| 0000000000000000 A wakeup_srcu_srcu_data |
| 0000000000000000 A flush_idx |
| 0000000000000000 A dax_srcu_srcu_data |
| 0000000000000000 A cpufreq_cpu_data |
| 0000000000000000 A cpufreq_transition_notifier_list_head_srcu_data |
| 0000000000000000 A cpu_dbs |
| 0000000000000000 A cpuidle_devices |
| 0000000000000000 A cpuidle_dev |
| 0000000000000000 A netdev_alloc_cache |
| 0000000000000000 A napi_alloc_cache |
| 0000000000000000 A flush_works |
| 0000000000000000 A bpf_redirect_info |
| 0000000000000000 A bpf_sp |
| 0000000000000000 A nf_skb_duplicated |
| 0000000000000000 A xt_recseq |
| 0000000000000000 A rt_cache_stat |
| 0000000000000000 A tsq_tasklet |
| 0000000000000000 A xfrm_trans_tasklet |
| 0000000000000000 A radix_tree_preloads |
| 0000000000000000 A irq_stat |
| 0000000000000000 A cyc2ns |
| 0000000000000000 A cpu_tlbstate |
| 0000000000000000 A flush_tlb_info |
| 0000000000000000 A cpu_worker_pools |
| 0000000000000000 A runqueues |
| 0000000000000000 A sched_clock_data |
| 0000000000000000 A osq_node |
| 0000000000000000 A qnodes |
| 0000000000000000 A rcu_data |
| 0000000000000000 A cfd_data |
| 0000000000000000 A call_single_queue |
| 0000000000000000 A csd_data |
| 0000000000000000 A softnet_data |
| 0000000000000000 A rt_uncached_list |
| 0000000000000000 A rt6_uncached_list |
| 0000000000000000 A __per_cpu_end |
| 0000000000000000 T startup_64 |
| 0000000000000000 T _stext |
| 0000000000000000 T _text |
| 0000000000000000 T secondary_startup_64 |
| 0000000000000000 T verify_cpu |
| 0000000000000000 T start_cpu0 |
| 0000000000000000 T __startup_64 |
| )"; |
| |
| TEST(LazyKernelSymbolizerTest, CanReadKernelSymbolAddresses) { |
| { |
| base::TempFile tmp = base::TempFile::Create(); |
| base::WriteAll(tmp.fd(), kRestrictedKallsyms, sizeof(kRestrictedKallsyms)); |
| base::FlushFile(tmp.fd()); |
| EXPECT_FALSE( |
| LazyKernelSymbolizer::CanReadKernelSymbolAddresses(tmp.path().c_str())); |
| } |
| |
| { |
| base::TempFile tmp = base::TempFile::Create(); |
| base::WriteAll(tmp.fd(), kUnrestrictedKallsyms, |
| sizeof(kUnrestrictedKallsyms)); |
| base::FlushFile(tmp.fd()); |
| EXPECT_TRUE( |
| LazyKernelSymbolizer::CanReadKernelSymbolAddresses(tmp.path().c_str())); |
| } |
| } |
| |
| } // namespace |
| } // namespace perfetto |
