[Lldb-commits] [lldb] [DWARF]Set uuid for symbol file spec (PR #110066)

[via lldb-commits]

https://github.com/GeorgeHuyubo created https://github.com/llvm/llvm-project/pull/110066

The gnu build id was lost while creating the new module spec, this result in the SymbolLocatorDebuginfod not able to locate symbol file.

before this change while connecting to debuginfod server I am seeing this warning unable to locate debug file, also parameter not shown.
```
warning: (x86_64) /home/hyubo/.cache/llvm-debuginfod/client/llvmcache-18224759554195557949 unable to locate separate debug file (dwo, dwp). Debugging will be degraded. (troubleshoot with https://fburl.com/missing_dwo)
(lldb) bt
* thread #1, name = 'crasher', stop reason = signal SIGABRT
  * frame #0: 0x00007fe9f909c993 libc.so.6`__GI___pthread_kill [inlined] __pthread_kill_internal(signo=6, threadid=<unavailable>) at pthread_kill.c:46:37
...
    frame #4: 0x000000000020c46a llvmcache-18224759554195557949`c4crasher::Crasher::crasher(unsigned long) at crasher.h:428
...
```
After this change:
```
# no warnings
(lldb) bt
* thread #1, name = 'crasher', stop reason = signal SIGABRT
  * frame #0: 0x00007fe9f909c993 libc.so.6`__GI___pthread_kill [inlined] __pthread_kill_internal(signo=6, threadid=<unavailable>) at pthread_kill.c:46:37
...
    frame #4: 0x000000000020c46a llvmcache-18224759554195557949`c4crasher::Crasher::crasher(this=0x00007fff44c51998, depth=0) at crasher.h:428
```

   

>From 3befdbeb8fdb5389891568550cf1d802a7e38535 Mon Sep 17 00:00:00 2001
From: George Hu <hyubo at meta.com>
Date: Wed, 25 Sep 2024 17:56:45 -0700
Subject: [PATCH] [DWARF]Set uuid for symbol file spec

---
 lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
index a40d6d9e37978b..811f41702fb63a 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
@@ -4357,6 +4357,7 @@ const std::shared_ptr<SymbolFileDWARFDwo> &SymbolFileDWARF::GetDwpSymbolFile() {
     FileSpecList search_paths = Target::GetDefaultDebugFileSearchPaths();
     ModuleSpec module_spec;
     module_spec.GetFileSpec() = m_objfile_sp->GetFileSpec();
+    module_spec.GetUUID() = m_objfile_sp->GetUUID();
     FileSpec dwp_filespec;
     for (const auto &symfile : symfiles.files()) {
       module_spec.GetSymbolFileSpec() =