[lldb-dev] incorrect shared library addresses

Tue Oct 13 16:25:16 PDT 2015

I'm having a strange issue debugging a go program.

I set a breakpoint, and lldb stops at it. However, lldb thinks it's in a
different function:
(lldb) b wikilinktester.go:35
Breakpoint 1: where = wikilinktester`main.main + 805 at
wikilinktester.go:35, address = 0x0000000000002365
(lldb) r
Process 43141 launched: '/tmp/gopath/bin/wikilinktester' (x86_64)
Process 43141 stopped
* thread #5: tid = 0x0001, 0x0000000000002365 libOpenScriptingUtil.dylib,
stop reason = breakpoint 1.1
    frame #0: 0x0000000000002365 libOpenScriptingUtil.dylib
->  0x2365: movq   %rax, 0x48(%rsp)
    0x236a: movq   %rax, (%rsp)
    0x236e: callq  0xb23d0
    0x2373: movq   0x8(%rsp), %rbx

For some reason lldb seems to think all the shared libraries are loaded at
address 0:
(lldb) image list
[  0]                                      0x0000000000001000
/tmp/gopath/bin/wikilinktester
[  1] B1B370A5-479F-3533-8AD7-97B687D4F989 0x00007fff5fc00000 /usr/lib/dyld
[  2] 1866C519-C5F3-3D09-8C17-A8F703664521 0x0000000000000000
/usr/lib/libSystem.B.dylib
[  3] 5C0892B8-9691-341F-9279-CA3A74D59AA0 0x0000000000000000
/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
[  4] FCCCC4FD-043A-30CA-9997-4211CA0E9297 0x0000000000000000
/System/Library/Frameworks/Security.framework/Versions/A/Security
[  5] 45E9A2E7-99C4-36B2-BEE3-0C4E11614AD1 0x0000000000000000
/usr/lib/system/libcache.dylib
[  6] E789748D-F9A7-3CFF-B317-90DF348B1E95 0x0000000000000000
/usr/lib/system/libcommonCrypto.dylib
[  7] BF8FC133-EE10-3DA6-9B90-92039E28678F 0x0000000000000000
/usr/lib/system/libcompiler_rt.dylib
[  8] 0C68D3A6-ACDD-3EF3-991A-CC82C32AB836 0x0000000000000000
/usr/lib/system/libcopyfile.dylib
[  9] 5779FFA0-4D9A-3AD4-B7F2-618227621DC8 0x0000000000000000
/usr/lib/system/libcorecrypto.dylib
[ 10] 502CF32B-669B-3709-8862-08188225E4F0 0x0000000000000000
/usr/lib/system/libdispatch.dylib
[ 11] CFBBE540-D503-3AFC-B5D6-644F1E69949B 0x0000000000000000
/usr/lib/system/libdyld.dylib
[ 12] 77845842-DE70-3CC5-BD01-C3D14227CED5 0x0000000000000000
/usr/lib/system/libkeymgr.dylib
[ 13] 4F81CA3A-D2CE-3030-A89D-42F3DAD7BA8F 0x0000000000000000
/usr/lib/system/liblaunch.dylib
[ 14] 126CA2ED-DE91-308F-8881-B9DAEC3C63B6 0x0000000000000000
/usr/lib/system/libmacho.dylib
[ 15] 7AF90041-2768-378A-925A-D83161863642 0x0000000000000000
/usr/lib/system/libquarantine.dylib
[ 16] 3485B5F4-6CE8-3C62-8DFD-8736ED6E8531 0x0000000000000000
/usr/lib/system/libremovefile.dylib
[ 17] F153AC5B-0542-356E-88C8-20A62CA704E2 0x0000000000000000
/usr/lib/system/libsystem_asl.dylib
[ 18] 9615D10A-FCA7-3BE4-AA1A-1B195DACE1A1 0x0000000000000000
/usr/lib/system/libsystem_blocks.dylib
[ 19] F0635E0F-FE4B-34DB-ACF9-A58C1E9070E9 0x0000000000000000
/usr/lib/system/libsystem_c.dylib
[ 20] 56F94DCE-DBDE-3615-8F07-DE6270D9F8BE 0x0000000000000000
/usr/lib/system/libsystem_configuration.dylib
[ 21] 41B7C578-5A53-31C8-A96F-C73E030B0938 0x0000000000000000
/usr/lib/system/libsystem_coreservices.dylib
[ 22] 155DA0A9-2046-332E-BFA3-D7974A51F731 0x0000000000000000
/usr/lib/system/libsystem_coretls.dylib
[ 23] 0CEB5910-843F-315C-A1DE-5D955A48A045 0x0000000000000000
/usr/lib/system/libsystem_dnssd.dylib
[ 24] 2E16C4B3-A327-3957-9C41-143911979A1E 0x0000000000000000
/usr/lib/system/libsystem_info.dylib
[ 25] 16AD15EF-3DAE-3F63-9D26-26CCE1920762 0x0000000000000000
/usr/lib/system/libsystem_kernel.dylib
[ 26] 1E12AB45-6D96-36D0-A226-F24D9FB0D9D6 0x0000000000000000
/usr/lib/system/libsystem_m.dylib
[ 27] DDA8928B-CC0D-3255-BD8A-3FEA0982B890 0x0000000000000000
/usr/lib/system/libsystem_malloc.dylib
[ 28] 6105C134-6722-3C0A-A4CE-5E1261E2E1CC 0x0000000000000000
/usr/lib/system/libsystem_network.dylib
[ 29] BA58B30B-8377-3B0A-8AE3-4F84021D9D4E 0x0000000000000000
/usr/lib/system/libsystem_networkextension.dylib
[ 30] 61147800-F320-3DAA-850C-BADF33855F29 0x0000000000000000
/usr/lib/system/libsystem_notify.dylib
[ 31] 64E34079-D712-3D66-9CE2-418624A5C040 0x0000000000000000
/usr/lib/system/libsystem_platform.dylib
[ 32] ACE90967-ECD0-3251-AEEB-461E3C6414F7 0x0000000000000000
/usr/lib/system/libsystem_pthread.dylib
[ 33] 3F5E973F-C702-31AC-97BC-05F5C195683C 0x0000000000000000
/usr/lib/system/libsystem_sandbox.dylib
[ 34] 581DAD0F-6B63-3A48-B63B-917AF799ABAA 0x0000000000000000
/usr/lib/system/libsystem_secinit.dylib
[ 35] D0E96837-3CF6-323D-B711-6DF6F660E530 0x0000000000000000
/usr/lib/system/libsystem_stats.dylib
[ 36] 840F5301-B55A-3078-90B9-FEFFD6CD741A 0x0000000000000000
/usr/lib/system/libsystem_trace.dylib
[ 37] 5676F7EA-C1DF-329F-B006-D2C3022B7D70 0x0000000000000000
/usr/lib/system/libunc.dylib
[ 38] BE7E51A0-B6EA-3A54-9CCA-9D88F683A6D6 0x0000000000000000
/usr/lib/system/libunwind.dylib
[ 39] 5C829202-962E-3744-8B50-00D38CC88E84 0x0000000000000000
/usr/lib/system/libxpc.dylib
[ 40] A260789B-D4D8-316A-9490-254767B8A5F1 0x0000000000000000
/usr/lib/libauto.dylib
[ 41] 2EE8E436-5CDC-34C5-9959-5BA218D507FB 0x0000000000000000
/usr/lib/libDiagnosticMessagesClient.dylib
[ 42] 3CD34752-B1F9-31D2-865D-B5B0F0BE3111 0x0000000000000000
/usr/lib/libicucore.A.dylib
[ 43] 759E155D-BC42-3D4E-869B-6F57D477177C 0x0000000000000000
/usr/lib/libobjc.A.dylib
[ 44] 88C7C7DE-04B8-316F-8B74-ACD9F3DE1AA1 0x0000000000000000
/usr/lib/libz.1.dylib
[ 45] A3A2E56C-2B65-37C7-B43A-A1F926E1A0BB 0x0000000000000000
/usr/lib/libbsm.0.dylib
[ 46] 7CD69BB5-97BA-3858-8A8B-2F33F129E6E7 0x0000000000000000
/usr/lib/libxar.1.dylib
[ 47] BCB1F77E-2484-3EC4-A1D5-1AE90A407A23 0x0000000000000000
/usr/lib/libsqlite3.dylib
[ 48] E805398D-9A92-31F8-8005-8DC188BD8B6E 0x0000000000000000
/usr/lib/libpam.2.dylib
[ 49] 09C0518C-90DF-3FC3-96D6-34D35F72C8EF 0x0000000000000000
/System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
[ 50] D6A2216D-ADB2-3F24-AD30-F6D00829F545 0x0000000000000000
/usr/lib/libOpenScriptingUtil.dylib
[ 51] 1B9530FD-989B-3174-BB1C-BDC159501710 0x0000000000000000
/usr/lib/libc++.1.dylib
[ 52] 88A22A0F-87C6-3002-BFBA-AC0F2808B8B9 0x0000000000000000
/usr/lib/libc++abi.dylib
[ 53] 2DF83FBC-5C08-39E1-94F5-C28653791B5F 0x0000000000000000
/usr/lib/libbz2.1.0.dylib
[ 54] 3FBA890F-2850-3A45-87EA-DB6892BDEB60 0x0000000000000000
/usr/lib/libxml2.2.dylib
[ 55] 2ADAE067-78A0-371E-A5A8-1E7C892D193C 0x0000000000000000
/usr/lib/system/libkxld.dylib

Any idea what's going on here?
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