[llvm] [lldb] DEBUGINFOD based DWP acquisition for LLDB (PR #70996)

[Kevin Frei via llvm-commits]

kevinfrei wrote:

doBuild.sh:
```
#!/bin/sh
./llvm-config.sh
cd rel-llvm
ninja -v
sudo ninja -v install-distribution
cd ..
./lldb-config.sh
cd rel-lldb
ninja -v
```
llvm-config.sh:
```
#!/bin/sh
cmake -G Ninja \
  -B rel-llvm \
  -S llvm/llvm \
  -DCMAKE_BUILD_TYPE=Release \
  -DLLVM_ENABLE_PROJECTS=clang \
  -DCMAKE_INSTALL_PREFIX=/usr \
  -DLLVM_APPEND_VC_REV=OFF \
  -DCMAKE_INSTALL_PREFIX=/usr/lib/llvm/18 \
  -DBUILD_SHARED_LIBS=OFF \
  -DLLVM_BUILD_LLVM_DYLIB=ON \
  -DLLVM_LINK_LLVM_DYLIB=ON \
  -DLLVM_TARGETS_TO_BUILD="AArch64;X86" \
  -DLLVM_INCLUDE_BENCHMARKS=OFF \
  -DLLVM_ENABLE_ZSTD=yes \
  -DLLVM_ENABLE_CURL=yes \
  -DLLVM_HOST_TRIPLE=i686-pc-linux-gnu \
  -DLLVM_DISTRIBUTION_COMPONENTS="LLVM;LTO;Remarks;llvm-config;cmake-exports;llvm-headers;LLVMDemangle;LLVMSupport;LLVMTableGen;llvm-tblgen;dsymutil;llc;lli;llvm-addr2line;llvm-ar;llvm-as;llvm-bcanalyzer;llvm-bitcode-strip;llvm-c-test;llvm-cat;llvm-cfi-verify;llvm-config;llvm-cov;llvm-cvtres;llvm-cxxdump;llvm-cxxfilt;llvm-cxxmap;llvm-debuginfo-analyzer;llvm-debuginfod-find;llvm-diff;llvm-dis;llvm-dlltool;llvm-dwarfdump;llvm-dwarfutil;llvm-dwp;llvm-exegesis;llvm-extract;llvm-gsymutil;llvm-ifs;llvm-install-name-tool;llvm-jitlink;llvm-lib;llvm-libtool-darwin;llvm-link;llvm-lipo;llvm-lto;llvm-lto2;llvm-mc;llvm-mca;llvm-ml;llvm-modextract;llvm-mt;llvm-nm;llvm-objcopy;llvm-objdump;llvm-opt-report;llvm-otool;llvm-pdbutil;llvm-profdata;llvm-profgen;llvm-ranlib;llvm-rc;llvm-readelf;llvm-readobj;llvm-readtapi;llvm-reduce;llvm-remarkutil;llvm-rtdyld;llvm-sim;llvm-size;llvm-split;llvm-stress;llvm-strings;llvm-strip;llvm-symbolizer;llvm-tli-checker;llvm-undname;llvm-windres;llvm-xray;opt;sancov;sanstats;verify-uselistorder;opt-viewer;llvm-debuginfod"
```
lldb-config.sh:
```
#!/bin/sh
cmake -G Ninja \
  -B rel-lldb \
  -S llvm/lldb \
  -DCMAKE_BUILD_TYPE=Release \
  -DLLVM_TARGETS_TO_BUILD="AArch64;X86" \
  -DCMAKE_INSTALL_PREFIX=/usr \
  -DLLVM_ENABLE_LIBEDIT=yes \
  -DLLVM_ENABLE_TERMINFO=yes \
  -DLLVM_ENABLE_LIBXML2=yes \
  -DLLVM_ENABLE_EH=ON \
  -DLLVM_ENABLE_RTTI=ON \
  -DLLVM_ENABLE_CURL=yes \
  -DLLVM_HOST_TRIPLE=i686-pc-linux-gnu \
  -DPython3_EXECUTABLE=/usr/bin/python3 \
  -DLLVM_DIR=/home/freik/src/rel-llvm/lib/cmake/llvm
```
And, here's the output of that whole mess: 
[hopefully-enough.log.gz](https://github.com/llvm/llvm-project/files/13681262/hopefully-enough.log.gz)




https://github.com/llvm/llvm-project/pull/70996