skip the linkage of libstdc++ in rustc_llvm

[onur-ozkan]

Since we already statically link to libLLVM.so (which includes libstdc++), we shouldn't need to link libstdc++ again for rustc_llvm. That did not work out well.

Fixes #123037

I need to debug the try build first. r? @ghost

[rust-log-analyzer]

The job x86_64-gnu-tools failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

   Compiling rustc_driver_impl v0.0.0 (/checkout/compiler/rustc_driver_impl)
   Compiling rustc_driver v0.0.0 (/checkout/compiler/rustc_driver)
error: linking with `cc` failed: exit status: 1
  |
  = note: LC_ALL="C" PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-sysroot/lib/rustlib/x86_64-unknown-linux-gnu/bin:/node/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" VSLANG="1033" "cc" "-m64" "/tmp/rustcoC3uL3/symbols.o" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-rustc/x86_64-unknown-linux-gnu/release/deps/rustc_main-03a52da9cf68106b.rustc_main.18e97cd8fcaeddb1-cgu.0.rcgu.o" "-Wl,--as-needed" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-rustc/x86_64-unknown-linux-gnu/release/deps" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-rustc/release/deps" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-rustc/x86_64-unknown-linux-gnu/release/build/psm-49e4010e8e7cf807/out" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-rustc/x86_64-unknown-linux-gnu/release/build/rustc_llvm-bf0e21cfea3eaa5c/out" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/ci-llvm/lib" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-rustc/x86_64-unknown-linux-gnu/release/deps" "-Wl,-Bdynamic" "-lrustc_driver-2ea015e24e0cfabd" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lstd-24c53e81ef334418" "-Wl,-Bstatic" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ca0262ca0fbc8978.rlib" "-Wl,-Bdynamic" "-lLLVM-18-rust-1.80.0-nightly" "-ldl" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-rustc/x86_64-unknown-linux-gnu/release/deps/rustc_main-03a52da9cf68106b" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-Wl,-O1" "-nodefaultlibs" "-Wl,-z,origin" "-Wl,-rpath,$ORIGIN/../lib"
  = note: /usr/bin/ld: /checkout/obj/build/x86_64-unknown-linux-gnu/stage0-rustc/x86_64-unknown-linux-gnu/release/deps/librustc_driver-2ea015e24e0cfabd.so: undefined reference to `std::ios_base::Init::~Init()'
          /usr/bin/ld: /checkout/obj/build/x86_64-unknown-linux-gnu/stage0-rustc/x86_64-unknown-linux-gnu/release/deps/librustc_driver-2ea015e24e0cfabd.so: undefined reference to `operator delete[](void*, unsigned long)'
          /usr/bin/ld: /checkout/obj/build/x86_64-unknown-linux-gnu/stage0-rustc/x86_64-unknown-linux-gnu/release/deps/librustc_driver-2ea015e24e0cfabd.so: undefined reference to `std::__throw_bad_array_new_length()'
          /usr/bin/ld: /checkout/obj/build/x86_64-unknown-linux-gnu/stage0-rustc/x86_64-unknown-linux-gnu/release/deps/librustc_driver-2ea015e24e0cfabd.so: undefined reference to `std::cerr'
          /usr/bin/ld: /checkout/obj/build/x86_64-unknown-linux-gnu/stage0-rustc/x86_64-unknown-linux-gnu/release/deps/librustc_driver-2ea015e24e0cfabd.so: undefined reference to `std::ios_base::Init::Init()'
          
          
  = note: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
  = note: use the `-l` flag to specify native libraries to link
  = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#rustc-link-lib)
error: could not compile `rustc-main` (bin "rustc-main") due to 1 previous error
Build completed unsuccessfully in 0:03:18
+ set -e
+ cat /tmp/toolstate/toolstates.json