regression: undefined symbol: __gxx_personality_v0

[Mark-Simulacrum]

• https://crater-reports.s3.amazonaws.com/beta-1.94-3/beta-2026-01-26/gh/Divy1211.aoe2-tex-com/log.txt

[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/debug/deps/rustcdkPvnX/symbols.o" "<17 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libtest-*,libgetopts-*,librustc_std_workspace_std-*}.rlib" "/opt/rustwide/target/debug/deps/{libimage_dds-ca8f4a84c3840cd6,libintel_tex_2-091dd05dda88bd2c,libispc_rt-37a00e4cbb1e1580,libnum_cpus-83ad7d30e6edd1dd,libbcdec_rs-b2169012feabe287,libstrum-eae770ade10af9d5,libddsfile-3b4ae858314c093e,libbyteorder-0ca5eb7f5d06cc99,libimage-4abfc1131b2cda8c,libimage_webp-5f178efbea23524d,libqoi-93c93d27b71eb316,libmoxcms-b95795d90ff4a12b,libpxfm-a1f24494e17dfd1b,libtiff-665e213716f839a4,libfax-f802dea28ead8654,libpng-7e5334de8d25de69,libbitflags-fae6e0f8e3806b1b,libflate2-e656998b494b3857,libfdeflate-d8a1ec881caedd0f,libcrc32fast-1a23ccfa53b97adf,libexr-218b39c2131d8159,libminiz_oxide-86db4e0308d8c43b,libzune_inflate-f9268fcc285ab51e,libsimd_adler32-2950ac2d8a96d1ab,libbit_field-06d84ddeae16c22a,liblebe-f99baa50a8ae0eae,libhalf-43c22e686c66843c,libzerocopy-8f6ddc4c40d4a5d7,libsmallvec-20582af5b08f136d,libzune_jpeg-e42a6095eb5e7e37,libzune_core-a05131bfb3adf573,libgif-5ffc4bb6d6e7d183,libcolor_quant-b01654695016f2b7,libweezl-ea302e03be28403a,libbyteorder_lite-c05ea6507e8f687b,libravif-e7c3d328eb5bb6fc,libloop9-0f9a46c4f7a636fb,libavif_serialize-e72bfac9ba2948b2,libquick_error-f14dd3981b5c81aa,librgb-71546191c666032b,librav1e-9071c869b6ba1681,libprofiling-06b02b1d3d4bf26e,libav1_grain-1f3ce99eb87beb04,libnom-7b10c487981b0015,libmemchr-5af1f28464116120,libnum_rational-3cbd0f3af431f679,libnum_bigint-fc48da14b55209da,libnum_integer-442558af21038c4f,libanyhow-c8353ff2dbdf9f02,libdebug_unreachable-0bc0ec3ade5f9f88,libmaybe_rayon-f06b6d6125c8031e,librayon-b5f2b479615e870d,librayon_core-8e1a521ea86acb4f,libcrossbeam_deque-6f30b1e5eb7c90c2,libcrossbeam_epoch-f266f60649e1f649,libcrossbeam_utils-0cc325d2d310391a,libcfg_if-74e59b81da37c95c,libv_frame-ecb7168fef7f3ddd,libaligned_vec-9389b135e7874ce2,libequator-cd01125ebb5e23c1,libarrayvec-13893dd7050462d1,libthiserror-3f4404f836f89ef9,libbitstream_io-66a0fe92899d4df0,libitertools-cbded8ef9e1ad4a3,libeither-a2a29aeefe78065b,liblog-8e98a37a4e11eb07,libimgref-6088fc4552d1e875,libbytemuck-21d1be4159a83e53,libnum_traits-530496daf060a776,libpyo3-748244f88158357a,libonce_cell-7f3391bea6e9ca5e,libpyo3_ffi-93e4900ddec0355c,liblibc-4850ef77d83b26c3,libmemoffset-7d2a8b7caf28b9da,libunindent-f540bae935409f39}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lpython3.12" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/opt/rustwide/target/debug/deps/rustcdkPvnX/raw-dylibs" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/intel_tex_2-0.4.0/src/ispc" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/aoe2_tex_com-82e1177318a9e410" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: undefined symbol: __gxx_personality_v0
[INFO] [stdout]           >>> referenced by ispc_texcomp_astc.cpp
[INFO] [stdout]           >>>               ispc_texcomp_astc.o:(DW.ref.__gxx_personality_v0) in archive /opt/rustwide/target/debug/deps/libintel_tex_2-091dd05dda88bd2c.rlib
[INFO] [stdout]           collect2: error: ld returned 1 exit status

[eggyal]

This is not new breakage. Also fails on 1.93, 1.92 and 1.91 (I didn't test any further back).

[Mark-Simulacrum]

That doesn't align with at least Crater's results (base run on 1.93: https://crater-reports.s3.amazonaws.com/beta-1.94-3/1.93.0/gh/Divy1211.aoe2-tex-com/log.txt) -- do we have a sense for why that might work/fail like that in Crater? Maybe we can tweak something in Crater or we should ignore this crate?

[workingjubilee]

This was a very recent init.

It looks like the root failure was in intel_tex_2?

[bjorn3]

This project is linking against C++ code, but forgets to include the C++ runtime. Perhaps it worked by accident previously due to --gc-sections, but even the tiniest change can cause the missing symbol problem that was always present to actually surface. Could also be that the change to lld was the thing that surfaced this problem. Lld I believe doesn't GC references to the personality function in .eh_frame early enough for this error to now show up.

[eggyal]

Please disregard my earlier claim that it's also failing on earlier versions. I failed to spot that was due to a different linker error on my machine, namely absence of a required library.

[apiraino]

I cloned https://github.com/Divy1211/aoe2-tex-com and run a cargo build No linking error on the intel_tex_2 crate. But also I don't see cc being invoked. I must be doing something wrong 🤔

[apiraino]

visiting this again: was anyone able to reproduce this?