Index: libexec/rtld-elf/amd64/reloc.c =================================================================== --- libexec/rtld-elf/amd64/reloc.c +++ libexec/rtld-elf/amd64/reloc.c @@ -303,6 +303,11 @@ case R_X86_64_RELATIVE: *where = (Elf_Addr)(obj->relocbase + rela->r_addend); break; + + case R_X86_64_IRELATIVE: + obj->irelative_nonplt = true; + break; + /* * missing: * R_X86_64_GOTPCREL, R_X86_64_32, R_X86_64_32S, R_X86_64_16, @@ -410,34 +415,53 @@ return (target); } +static void +reloc_iresolve_one(Obj_Entry *obj, const Elf_Rela *rela, + RtldLockState *lockstate) +{ + Elf_Addr *where, target, *ptr; + + ptr = (Elf_Addr *)(obj->relocbase + rela->r_addend); + where = (Elf_Addr *)(obj->relocbase + rela->r_offset); + lock_release(rtld_bind_lock, lockstate); + target = call_ifunc_resolver(ptr); + wlock_acquire(rtld_bind_lock, lockstate); + *where = target; +} + int reloc_iresolve(Obj_Entry *obj, RtldLockState *lockstate) { - const Elf_Rela *relalim; - const Elf_Rela *rela; + const Elf_Rela *relalim; + const Elf_Rela *rela; - if (!obj->irelative) + if (!obj->irelative) + return (0); + obj->irelative = false; + relalim = (const Elf_Rela *)((const char *)obj->pltrela + + obj->pltrelasize); + for (rela = obj->pltrela; rela < relalim; rela++) { + if (ELF_R_TYPE(rela->r_info) == R_X86_64_IRELATIVE) + reloc_iresolve_one(obj, rela, lockstate); + } return (0); - relalim = (const Elf_Rela *)((const char *)obj->pltrela + obj->pltrelasize); - for (rela = obj->pltrela; rela < relalim; rela++) { - Elf_Addr *where, target, *ptr; +} - switch (ELF_R_TYPE(rela->r_info)) { - case R_X86_64_JMP_SLOT: - break; +int +reloc_iresolve_nonplt(Obj_Entry *obj, RtldLockState *lockstate) +{ + const Elf_Rela *relalim; + const Elf_Rela *rela; - case R_X86_64_IRELATIVE: - ptr = (Elf_Addr *)(obj->relocbase + rela->r_addend); - where = (Elf_Addr *)(obj->relocbase + rela->r_offset); - lock_release(rtld_bind_lock, lockstate); - target = call_ifunc_resolver(ptr); - wlock_acquire(rtld_bind_lock, lockstate); - *where = target; - break; + if (!obj->irelative_nonplt) + return (0); + obj->irelative_nonplt = false; + relalim = (const Elf_Rela *)((const char*)obj->rela + obj->relasize); + for (rela = obj->rela; rela < relalim; rela++) { + if (ELF_R_TYPE(rela->r_info) == R_X86_64_IRELATIVE) + reloc_iresolve_one(obj, rela, lockstate); } - } - obj->irelative = false; - return (0); + return (0); } int Index: libexec/rtld-elf/rtld.h =================================================================== --- libexec/rtld-elf/rtld.h +++ libexec/rtld-elf/rtld.h @@ -264,6 +264,7 @@ bool dag_inited : 1; /* Object has its DAG initialized. */ bool filtees_loaded : 1; /* Filtees loaded */ bool irelative : 1; /* Object has R_MACHDEP_IRELATIVE relocs */ + bool irelative_nonplt : 1; /* Object has R_MACHDEP_IRELATIVE non-plt relocs */ bool gnu_ifunc : 1; /* Object has references to STT_GNU_IFUNC */ bool non_plt_gnu_ifunc : 1; /* Object has non-plt IFUNC references */ bool ifuncs_resolved : 1; /* Object ifuncs were already resolved */ @@ -406,6 +407,7 @@ int reloc_plt(Obj_Entry *, int flags, struct Struct_RtldLockState *); int reloc_jmpslots(Obj_Entry *, int flags, struct Struct_RtldLockState *); int reloc_iresolve(Obj_Entry *, struct Struct_RtldLockState *); +int reloc_iresolve_nonplt(Obj_Entry *, struct Struct_RtldLockState *); int reloc_gnu_ifunc(Obj_Entry *, int flags, struct Struct_RtldLockState *); void ifunc_init(Elf_Auxinfo[__min_size(AT_COUNT)]); void pre_init(void); Index: libexec/rtld-elf/rtld.c =================================================================== --- libexec/rtld-elf/rtld.c +++ libexec/rtld-elf/rtld.c @@ -3034,10 +3034,13 @@ if (obj->ifuncs_resolved) return (0); obj->ifuncs_resolved = true; - if (!obj->irelative && !((obj->bind_now || bind_now) && obj->gnu_ifunc)) + if (!obj->irelative && !obj->irelative_nonplt && + !((obj->bind_now || bind_now) && obj->gnu_ifunc)) return (0); if (obj_disable_relro(obj) == -1 || (obj->irelative && reloc_iresolve(obj, lockstate) == -1) || + (obj->irelative_nonplt && reloc_iresolve_nonplt(obj, + lockstate) == -1) || ((obj->bind_now || bind_now) && obj->gnu_ifunc && reloc_gnu_ifunc(obj, flags, lockstate) == -1) || obj_enforce_relro(obj) == -1)