| Issue |
179839
|
| Summary |
[LLDB] LLDB not properly resolving symbols added via `target symbols add file -s shlib`
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
k4lizen
|
I am trying to symbolicate a stripped file. After I run `target symbols add mysyms -s thefile`, lldb can clearly resolve the added symbols, but when I do not hit a breakpoint set on such a symbol.
Repro:
Im on linux.
```
$ lldb main
(lldb) settings set target.disable-aslr true
(lldb) process launch -s
(lldb) target symbols add forx8664 -s main
(lldb) b main
Breakpoint 1: where = main`main, address = 0x00005555555553a4
(lldb) x/20i 0x00005555555553a4
0x5555555553a4: pushq %rbp
0x5555555553a5: movq %rsp, %rbp
0x5555555553a8: subq $0x30, %rsp
0x5555555553ac: movq %fs:0x28, %rax
0x5555555553b5: movq %rax, -0x8(%rbp)
(lldb) b *0x5555555553ac
Breakpoint 2: where = main`___lldb_unnamed_symbol_13a4 + 8, address = 0x00005555555553ac
(lldb) c
Process 6781 resuming
Process 6781 stopped
* thread #1, name = 'main', stop reason = breakpoint 2.1
frame #0: 0x00005555555553ac main`___lldb_unnamed_symbol_13a4 + 8
main`___lldb_unnamed_symbol_13a4:
-> 0x5555555553ac <+8>: int3
0x5555555553ad <+9>: movq 0x28, %rax
0x5555555553b5 <+17>: movq %rax, -0x8(%rbp)
0x5555555553b9 <+21>: xorl %eax, %eax
```
The first breakpoint was not hit.
Here is the symtab dump:
```
(lldb) target modules dump symtab main
Symtab, file = /home/lamb/code/testing/integra/main, num_symbols = 29:
Debug symbol
|Synthetic symbol
||Externally Visible
|||
Index UserID DSX Type File Address/Value Load Address Size Flags Name
------- ------ --- --------------- ------------------ ------------------ ------------------ ---------- ----------------------------------
[ 0] 1 X Code 0x0000555555555020 0x0000000000000050 0x00000015 sub_1020
[ 1] 2 X Code 0x0000555555555070 0x0000000000000030 0x00000015 start
[ 2] 3 X Code 0x00005555555550a0 0x0000000000000030 0x00000015 sub_10A0
[ 3] 4 X Code 0x00005555555550d0 0x0000000000000040 0x00000015 sub_10D0
[ 4] 5 X Code 0x0000555555555110 0x0000000000000050 0x00000015 sub_1110
[ 5] 6 X Code 0x0000555555555160 0x0000000000000009 0x00000015 sub_1160
[ 6] 7 X Code 0x0000555555555169 0x00000000000000bb 0x00000015 cute
[ 7] 8 X Code 0x0000555555555224 0x00000000000000c0 0x00000015 kya
[ 8] 9 X Code 0x00005555555552e4 0x00000000000000c0 0x00000015 awa
[ 9] 10 X Code 0x00005555555553a4 0x0000000000002c84 0x00000015 main
[ 10] 11 X Code 0x0000555555558038 0x0000000000000008 0x00000015 __libc_start_main
[ 11] 12 X Code 0x0000555555558040 0x0000000000000008 0x00000015 puts
[ 12] 13 X Code 0x0000555555558048 0x0000000000000008 0x00000015 __stack_chk_fail
[ 13] 14 X Code 0x0000555555558050 0x0000000000000008 0x00000015 printf
[ 14] 15 X Code 0x0000555555558058 0x0000000000000008 0x00000015 __isoc23_scanf
[ 15] 16 X Code 0x0000555555558060 0x0000000000000010 0x00000015 __cxa_finalize
[ 16] 17 X Code 0x0000555555558070 0x0000000000000000 0x00000015 __gmon_start__
[ 17] 18 X Code 0x0000555555558028 0x0000000000000008 0x00000015 off_4028
[ 18] 19 X Code 0x0000555555558030 0x0000000000000008 0x00000015 byte_4030
[ 19] 20 S Trampoline 0x0000000000001030 0x0000555555555030 0x0000000000000010 0x00000000 puts
[ 20] 21 S Trampoline 0x0000000000001040 0x0000555555555040 0x0000000000000010 0x00000000 __stack_chk_fail
[ 21] 22 S Trampoline 0x0000000000001050 0x0000555555555050 0x0000000000000010 0x00000000 printf
[ 22] 23 S Trampoline 0x0000000000001060 0x0000555555555060 0x0000000000000010 0x00000000 __isoc23_scanf
[ 23] 24 SX Code 0x0000000000001020 0x0000555555555020 0x0000000000000010 0x00000000 ___lldb_unnamed_symbol_1020
[ 24] 25 SX Code 0x0000000000001070 0x0000555555555070 0x00000000000000f9 0x00000000 ___lldb_unnamed_symbol_1070
[ 25] 26 SX Code 0x0000000000001169 0x0000555555555169 0x00000000000000bb 0x00000000 ___lldb_unnamed_symbol_1169
[ 26] 27 SX Code 0x0000000000001224 0x0000555555555224 0x00000000000000c0 0x00000000 ___lldb_unnamed_symbol_1224
[ 27] 28 SX Code 0x00000000000012e4 0x00005555555552e4 0x00000000000000c0 0x00000000 ___lldb_unnamed_symbol_12e4
[ 28] 29 SX Code 0x00000000000013a4 0x00005555555553a4 0x000000000000016e 0x00000000 ___lldb_unnamed_symbol_13a4
```
Here are my two ELFs: [lldbhand.zip](https://github.com/user-attachments/files/25085115/lldbhand.zip) .
![]()
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