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[lldb] [testsuite] Fix TestFixIts.py on Linux

Authored by jankratochvil on Apr 17 2020, 11:32 PM.

Description

[lldb] [testsuite] Fix TestFixIts.py on Linux

Since D77214 there is a testsuite regression for TestFixIts.py
on Fedora 31 x86_64.

  File "/home/jkratoch/redhat/llvm-monorepo/lldb/test/API/commands/expression/fixits/TestFixIts.py", line 148, in test_with_target
    self.assertEquals(value.GetError().GetCString(), "error: No value")
AssertionError: 'error: error: Multiple internal symbols found for \'d\'\nid = {0x00000d2a}, ran [truncated]... != 'error: No value'

That is because Fedora glibc incl. libm.so contains also ELF debug
symbols and there exists a 'd' symbol:

(gdb) p d
$1 = {i = {0, 1076887552}, d = 16}
(gdb) p &d
$2 = (const number *) 0x7ffff78e8bc0 <d>
(gdb) info sym 0x7ffff78e8bc0
d in section .rodata of /lib64/libm.so.6

$ nm /lib64/libm.so.6 |grep ' d$'
00000000000bfbc0 r d
00000000000caa20 r d
00000000000caa20 r d
00000000000caa20 r d

glibc-build$ for i in `find -name "*.o"`;do nm 2>/dev/null $i|grep ' d$' && echo $i;done
0000000000000080 r d
./math/s_atan-fma4.o
0000000000000080 r d
./math/s_atan-avx.o
0000000000000080 r d
./math/s_atan.o

Details

Committed
jankratochvilApr 17 2020, 11:32 PM
Parents
rG6919b708a180: [CMake] Set UBSAN_LINK_FLAGS for ubsan
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