26 lines
960 B
Text
26 lines
960 B
Text
- Don't create IBT .plt if there are no PLT entries. Cherry picked from
|
|
upstream.
|
|
|
|
Index: lld/ELF/SyntheticSections.cpp
|
|
--- lld/ELF/SyntheticSections.cpp.orig
|
|
+++ lld/ELF/SyntheticSections.cpp
|
|
@@ -2567,6 +2567,10 @@ PltSection::PltSection()
|
|
if ((config->emachine == EM_386 || config->emachine == EM_X86_64) &&
|
|
(config->andFeatures & GNU_PROPERTY_X86_FEATURE_1_IBT))
|
|
name = ".plt.sec";
|
|
+#ifdef __OpenBSD__
|
|
+ else if (config->emachine == EM_X86_64)
|
|
+ name = ".plt.sec";
|
|
+#endif
|
|
|
|
// The PLT needs to be writable on SPARC as the dynamic linker will
|
|
// modify the instructions in the PLT entries.
|
|
@@ -2728,6 +2732,8 @@ size_t IBTPltSection::getSize() const {
|
|
// 16 is the header size of .plt.
|
|
return 16 + in.plt->getNumEntries() * target->pltEntrySize;
|
|
}
|
|
+
|
|
+bool IBTPltSection::isNeeded() const { return in.plt->getNumEntries() > 0; }
|
|
|
|
// The string hash function for .gdb_index.
|
|
static uint32_t computeGdbHash(StringRef s) {
|