Issue 4596 - Build with clang/lld fails when LTO enabled #4929
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Bug Description: Fedora is introducing lto by default which may affect our build especially with rust and asan Fix Description: Adapt how we use lto and how we link in our builds so that lto works for gcc. fixes: #4596 Author: William Brown <[email protected]> Review by: ???
Bug Description: Build with clang/lld fails with undefined reference error. ``` ld.lld: error: ./.libs/libslapd.so: undefined reference to __rust_probestack [--no-allow-shlib-undefined] ld.lld: error: ./.libs/libslapd.so: undefined reference to __muloti4 [--no-allow-shlib-undefined] ``` Fix Description: * Disabled GCC security flags when building with clang. * lld by default uses xxhash for build ids, which is too small for rpm (it requires it between 16 and 64 bytes in size), use sha1 instead. * Switch debug CFLAGS and LDFLAGS to use DWARF4 instead of DWARF5. * Disable LTO for clang rpm build. Fixes: #4596 Reviewed by: ???
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Hmm, it breaks compilation with GCC, I need to revise it. |
Firstyear
requested changes
Mar 3, 2022
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I recreated my fork, and it deleted this PR. I can't reopen it, so I resubmitted it as #6392 |
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Issue 4596 - Build with clang/lld fails when LTO enabled
Bug Description:
Build with clang/lld fails with undefined reference error.
Fix Description:
(it requires it between 16 and 64 bytes in size), use sha1 instead.
Fixes: #4596
Reviewed by: ???