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libexec/rtld-elf/i386/reloc.c
| Show First 20 Lines • Show All 257 Lines • ▼ Show 20 Lines | case R_386_TLS_TPOFF32: | ||||
| *where -= add; | *where -= add; | ||||
| break; | break; | ||||
| case R_386_TLS_DTPMOD32: | case R_386_TLS_DTPMOD32: | ||||
| *where += (Elf_Addr)defobj->tlsindex; | *where += (Elf_Addr)defobj->tlsindex; | ||||
| break; | break; | ||||
| case R_386_TLS_DTPOFF32: | case R_386_TLS_DTPOFF32: | ||||
| *where += (Elf_Addr) def->st_value; | *where += (Elf_Addr) def->st_value; | ||||
| break; | break; | ||||
| case R_I386_IRELATIVE: | |||||
| obj->irelative_nonplt = true; | |||||
| break; | |||||
| default: | default: | ||||
| _rtld_error("%s: Unsupported relocation type %d" | _rtld_error("%s: Unsupported relocation type %d" | ||||
| " in non-PLT relocations\n", obj->path, | " in non-PLT relocations\n", obj->path, | ||||
| ELF_R_TYPE(rel->r_info)); | ELF_R_TYPE(rel->r_info)); | ||||
| goto done; | goto done; | ||||
| } | } | ||||
| } | } | ||||
| r = 0; | r = 0; | ||||
| ▲ Show 20 Lines • Show All 86 Lines • ▼ Show 20 Lines | |||||
| #ifdef dbg | #ifdef dbg | ||||
| dbg("reloc_jmpslot: *%p = %p", where, (void *)target); | dbg("reloc_jmpslot: *%p = %p", where, (void *)target); | ||||
| #endif | #endif | ||||
| if (!ld_bind_not) | if (!ld_bind_not) | ||||
| *where = target; | *where = target; | ||||
| return (target); | return (target); | ||||
| } | } | ||||
| static void | |||||
| reloc_iresolve_one(Obj_Entry *obj, const Elf_Rela *rel, | |||||
| RtldLockState *lockstate) | |||||
| { | |||||
| Elf_Addr *where, target; | |||||
| where = (Elf_Addr *)(obj->relocbase + rel->r_offset); | |||||
| lock_release(rtld_bind_lock, lockstate); | |||||
| target = call_ifunc_resolver(obj->relocbase + *where); | |||||
| wlock_acquire(rtld_bind_lock, lockstate); | |||||
| *where = target; | |||||
| } | |||||
| int | int | ||||
| reloc_iresolve(Obj_Entry *obj, RtldLockState *lockstate) | reloc_iresolve(Obj_Entry *obj, RtldLockState *lockstate) | ||||
| { | { | ||||
| const Elf_Rel *rellim; | const Elf_Rel *rellim; | ||||
| const Elf_Rel *rel; | const Elf_Rel *rel; | ||||
| Elf_Addr *where, target; | |||||
| if (!obj->irelative) | if (!obj->irelative) | ||||
| return (0); | return (0); | ||||
| obj->irelative = false; | |||||
| rellim = (const Elf_Rel *)((const char *)obj->pltrel + obj->pltrelsize); | rellim = (const Elf_Rel *)((const char *)obj->pltrel + obj->pltrelsize); | ||||
| for (rel = obj->pltrel; rel < rellim; rel++) { | for (rel = obj->pltrel; rel < rellim; rel++) { | ||||
| switch (ELF_R_TYPE(rel->r_info)) { | if (ELF_R_TYPE(rel->r_info) == R_386_IRELATIVE) | ||||
| case R_386_IRELATIVE: | reloc_iresolve_one(obj, rel, lockstate); | ||||
| where = (Elf_Addr *)(obj->relocbase + rel->r_offset); | |||||
| lock_release(rtld_bind_lock, lockstate); | |||||
| target = call_ifunc_resolver(obj->relocbase + *where); | |||||
| wlock_acquire(rtld_bind_lock, lockstate); | |||||
| *where = target; | |||||
| break; | |||||
| } | } | ||||
| return (0); | |||||
| } | } | ||||
| obj->irelative = false; | |||||
| int | |||||
| reloc_iresolve_nonplt(Obj_Entry *obj, RtldLockState *lockstate) | |||||
| { | |||||
| const Elf_Rel *rellim; | |||||
| const Elf_Rel *rel; | |||||
| if (!obj->irelative_nonplt) | |||||
| return (0); | |||||
| obj->irelative_nonplt = false; | |||||
| rellim = (const Elf_Rel *)((const char *)obj->rel + obj->relsize); | |||||
| for (rel = obj->rel; rel < rellim; rel++) { | |||||
| if (ELF_R_TYPE(rel->r_info) == R_I386_IRELATIVE) | |||||
| reloc_iresolve_one(obj, rel, lockstate); | |||||
| } | |||||
| return (0); | return (0); | ||||
| } | } | ||||
| int | int | ||||
| reloc_gnu_ifunc(Obj_Entry *obj, int flags, RtldLockState *lockstate) | reloc_gnu_ifunc(Obj_Entry *obj, int flags, RtldLockState *lockstate) | ||||
| { | { | ||||
| const Elf_Rel *rellim; | const Elf_Rel *rellim; | ||||
| const Elf_Rel *rel; | const Elf_Rel *rel; | ||||
| ▲ Show 20 Lines • Show All 122 Lines • Show Last 20 Lines | |||||