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https://github.com/logos-blockchain/logos-blockchain-rust-rapidsnark.git
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80f5e0b661
The prebuilt iden3 rapidsnark archives are compiled on a glibc >= 2.38 host (Ubuntu 24.04 / GCC 13), whose headers redirect strtoll/strtoull to the C23 interceptor symbols __isoc23_strtoll / __isoc23_strtoull. When the static archives (static-rapidsnark feature) are linked on a host with an older glibc (e.g. glibc 2.35), those symbols are undefined and linking fails: rust-lld: error: undefined symbol: __isoc23_strtoull Compile thin forwarders to the classic strtoll/strtoull symbols and link them via whole-archive so the static path resolves regardless of the host glibc version. Gated to the static feature on glibc-Linux; the shared library and all other targets are unaffected. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
25 lines
1.2 KiB
C
25 lines
1.2 KiB
C
/*
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* glibc >= 2.38 redirects strtoll/strtoull to the C23 interceptor symbols
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* __isoc23_strtoll / __isoc23_strtoull at compile time. The prebuilt iden3
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* rapidsnark archives were compiled against such a glibc, so their verifier
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* objects reference those symbols. When the static archives are linked on a
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* host with an older glibc (e.g. Ubuntu 22.04 / glibc 2.35) the symbols are
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* undefined and linking fails.
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*
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* Provide thin forwarders to the classic strtoll/strtoull symbols. We bind to
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* the legacy symbol names explicitly via asm labels and deliberately avoid
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* including <stdlib.h>, so this translation unit is itself immune to the C23
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* header redirect (otherwise the forwarder would recurse into itself when this
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* file is compiled on a new-glibc build host).
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*/
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extern long long __legacy_strtoll(const char *, char **, int) __asm__("strtoll");
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extern unsigned long long __legacy_strtoull(const char *, char **, int) __asm__("strtoull");
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long long __isoc23_strtoll(const char *nptr, char **endptr, int base) {
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return __legacy_strtoll(nptr, endptr, base);
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}
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unsigned long long __isoc23_strtoull(const char *nptr, char **endptr, int base) {
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return __legacy_strtoull(nptr, endptr, base);
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}
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