Frantisek Sumsal
f201f34477
so we can run TEST-46 under sanitizers once again. `systemd-homed` runs fsck on home directories, which reports a memory leak we're not interested in. Let's introduce an LSan suppression file to get around this. Since the patterns in the suppression file are matched using basic substring match[0], they're a bit cumbersome, but should get the work one. [0] https://github.com/google/sanitizers/wiki/AddressSanitizerLeakSanitizer#suppressions Example leaks (as reported by TEST-46): ``` systemd-homed[1333]: ================================================================= systemd-homed[1333]: ==1333==ERROR: LeakSanitizer: detected memory leaks systemd-homed[1333]: Direct leak of 24 byte(s) in 1 object(s) allocated from: systemd-homed[1333]: #0 0x7f0c8facccd1 in calloc (/usr/lib/clang/12.0.1/lib/linux/libclang_rt.asan-x86_64.so+0xf4cd1) systemd-homed[1333]: #1 0x558d9494ff67 (/usr/bin/fsck+0x3f67) systemd-homed[1333]: Direct leak of 6 byte(s) in 1 object(s) allocated from: systemd-homed[1333]: #0 0x7f0c8fa906c1 in strdup (/usr/lib/clang/12.0.1/lib/linux/libclang_rt.asan-x86_64.so+0xb86c1) systemd-homed[1333]: #1 0x558d949518fd (/usr/bin/fsck+0x58fd) systemd-homed[1333]: SUMMARY: AddressSanitizer: 30 byte(s) leaked in 2 allocation(s). systemd-homed[1337]: ==1337==WARNING: Symbolizer was blocked from starting itself! systemd-homed[1337]: ================================================================= systemd-homed[1337]: ==1337==ERROR: LeakSanitizer: detected memory leaks systemd-homed[1337]: Direct leak of 67584 byte(s) in 1 object(s) allocated from: systemd-homed[1337]: #0 0x7f01edb84b19 (/usr/lib/clang/12.0.1/lib/linux/libclang_rt.asan-x86_64.so+0xf4b19) systemd-homed[1337]: #1 0x7f01e8326829 (/usr/bin/../lib/libLLVM-12.so+0xb46829) systemd-homed[1337]: SUMMARY: AddressSanitizer: 67584 byte(s) leaked in 1 allocation(s). ``` With the suppression file: ``` systemd-homed[1339]: ----------------------------------------------------- systemd-homed[1339]: Suppressions used: systemd-homed[1339]: count bytes template systemd-homed[1339]: 2 30 /bin/fsck$ systemd-homed[1339]: ----------------------------------------------------- systemd-homed[1343]: ==1343==WARNING: Symbolizer was blocked from starting itself! systemd-homed[1343]: ----------------------------------------------------- systemd-homed[1343]: Suppressions used: systemd-homed[1343]: count bytes template systemd-homed[1343]: 1 67584 /lib/libLLVM systemd-homed[1343]: ----------------------------------------------------- ```
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