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diff --git a/libexec/rtld-elf/rtld.h b/libexec/rtld-elf/rtld.h
--- a/libexec/rtld-elf/rtld.h
+++ b/libexec/rtld-elf/rtld.h
@@ -174,6 +174,8 @@
unsigned long relsize; /* Size in bytes of relocation info */
const Elf_Rela *rela; /* Relocation entries with addend */
unsigned long relasize; /* Size in bytes of addend relocation info */
+ const Elf_Relr *relr; /* RELR relocation entries */
+ unsigned long relrsize; /* Size in bytes of RELR relocations */
const Elf_Rel *pltrel; /* PLT relocation entries */
unsigned long pltrelsize; /* Size in bytes of PLT relocation info */
const Elf_Rela *pltrela; /* PLT relocation entries with addend */
diff --git a/libexec/rtld-elf/rtld.c b/libexec/rtld-elf/rtld.c
--- a/libexec/rtld-elf/rtld.c
+++ b/libexec/rtld-elf/rtld.c
@@ -1255,6 +1255,18 @@
assert(dynp->d_un.d_val == sizeof(Elf_Rela));
break;
+ case DT_RELR:
+ obj->relr = (const Elf_Relr *)(obj->relocbase + dynp->d_un.d_ptr);
+ break;
+
+ case DT_RELRSZ:
+ obj->relrsize = dynp->d_un.d_val;
+ break;
+
+ case DT_RELRENT:
+ assert(dynp->d_un.d_val == sizeof(Elf_Relr));
+ break;
+
case DT_PLTREL:
plttype = dynp->d_un.d_val;
assert(dynp->d_un.d_val == DT_REL || plttype == DT_RELA);
@@ -3148,6 +3160,29 @@
return (0);
}
+/* Process RELR relative relocations. */
+static void
+reloc_relr(Obj_Entry *obj)
+{
+ const Elf_Relr *relr, *relrlim;
+ Elf_Addr *where;
+
+ relrlim = (const Elf_Relr *)((const char *)obj->relr + obj->relrsize);
+ for (relr = obj->relr; relr < relrlim; relr++) {
+ Elf_Relr entry = *relr;
+
+ if ((entry & 1) == 0) {
+ where = (Elf_Addr *)(obj->relocbase + entry);
+ *where++ += (Elf_Addr)obj->relocbase;
+ } else {
+ for (long i = 0; (entry >>= 1) != 0; i++)
+ if ((entry & 1) != 0)
+ where[i] += (Elf_Addr)obj->relocbase;
+ where += CHAR_BIT * sizeof(Elf_Relr) - 1;
+ }
+ }
+}
+
/*
* Relocate single object.
* Returns 0 on success, or -1 on failure.
@@ -3174,6 +3209,7 @@
/* Process the non-PLT non-IFUNC relocations. */
if (reloc_non_plt(obj, rtldobj, flags, lockstate))
return (-1);
+ reloc_relr(obj);
/* Re-protected the text segment. */
if (obj->textrel && reloc_textrel_prot(obj, false) != 0)

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