47 lines
1.7 KiB
Text
47 lines
1.7 KiB
Text
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Index: lld/ELF/Relocations.cpp
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--- lld/ELF/Relocations.cpp.orig
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+++ lld/ELF/Relocations.cpp
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@@ -800,6 +800,19 @@ void elf::reportUndefinedSymbols() {
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undefs.clear();
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}
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+static void reportGNUWarning(Symbol &sym, InputSectionBase &sec,
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+ uint64_t offset) {
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+ std::lock_guard<std::mutex> lock(relocMutex);
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+ if (sym.gwarn) {
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+ StringRef gnuWarning = gnuWarnings.lookup(sym.getName());
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+ // report first occurance only
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+ sym.gwarn = false;
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+ if (!gnuWarning.empty())
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+ message(sec.getSrcMsg(sym, offset) + "(" + sec.getObjMsg(offset) +
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+ "): warning: " + gnuWarning);
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+ }
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+}
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+
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// Report an undefined symbol if necessary.
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// Returns true if the undefined symbol will produce an error message.
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static bool maybeReportUndefined(Undefined &sym, InputSectionBase &sec,
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@@ -830,6 +843,13 @@ static bool maybeReportUndefined(Undefined &sym, Input
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if (sym.discardedSecIdx != 0 && (sec.name == ".got2" || sec.name == ".toc"))
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return false;
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+#ifdef __OpenBSD__
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+ // GCC (at least 8 and 11) can produce a ".gcc_except_table" with relocations
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+ // to discarded sections on riscv64
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+ if (sym.discardedSecIdx != 0 && sec.name == ".gcc_except_table")
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+ return false;
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+#endif
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+
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bool isWarning =
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(config->unresolvedSymbols == UnresolvedPolicy::Warn && canBeExternal) ||
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config->noinhibitExec;
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@@ -1368,6 +1388,8 @@ template <class ELFT, class RelTy> void RelocationScan
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uint64_t offset = getter.get(rel.r_offset);
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if (offset == uint64_t(-1))
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return;
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+
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+ reportGNUWarning(sym, *sec, rel.r_offset);
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RelExpr expr = target->getRelExpr(type, sym, sec->content().data() + offset);
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int64_t addend = RelTy::IsRela
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