Author: mmel
Date: Sat Dec 15 06:34:13 2018
New Revision: 342111
URL: https://svnweb.freebsd.org/changeset/base/342111
Log:
MFC r341738:
Implement R_AARCH64_TLS_DTPMOD64 and A_AARCH64_TLS_DTPREL64 relocations.
Although these are slightly obsolete in favor of R_AARCH64_TLSDESC, gcc
-mtls-dialect=trad still use them.
Modified:
stable/11/libexec/rtld-elf/aarch64/reloc.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/libexec/rtld-elf/aarch64/reloc.c
==============================================================================
--- stable/11/libexec/rtld-elf/aarch64/reloc.c Sat Dec 15 06:22:48 2018
(r342110)
+++ stable/11/libexec/rtld-elf/aarch64/reloc.c Sat Dec 15 06:34:13 2018
(r342111)
@@ -217,6 +217,8 @@ reloc_plt(Obj_Entry *obj)
case R_AARCH64_TLSDESC:
reloc_tlsdesc(obj, rela, where);
break;
+ case R_AARCH64_NONE:
+ break;
default:
_rtld_error("Unknown relocation type %u in PLT",
(unsigned int)ELF_R_TYPE(rela->r_info));
@@ -342,6 +344,9 @@ reloc_non_plt(Obj_Entry *obj, Obj_Entry *obj_rtld, int
switch (ELF_R_TYPE(rela->r_info)) {
case R_AARCH64_ABS64:
case R_AARCH64_GLOB_DAT:
+ case R_AARCH64_TLS_TPREL64:
+ case R_AARCH64_TLS_DTPREL64:
+ case R_AARCH64_TLS_DTPMOD64:
def = find_symdef(symnum, obj, &defobj, flags, cache,
lockstate);
if (def == NULL)
@@ -392,8 +397,23 @@ reloc_non_plt(Obj_Entry *obj, Obj_Entry *obj_rtld, int
*where = def->st_value + rela->r_addend +
defobj->tlsoffset;
break;
+
+ /*
+ * !!! BEWARE !!!
+ * ARM ELF ABI defines TLS_DTPMOD64 as 1029, and TLS_DTPREL64
+ * as 1028. But actual bfd linker and the glibc RTLD linker
+ * treats TLS_DTPMOD64 as 1028 and TLS_DTPREL64 1029.
+ */
+ case R_AARCH64_TLS_DTPREL64: /* efectively is TLS_DTPMOD64 */
+ *where += (Elf_Addr)defobj->tlsindex;
+ break;
+ case R_AARCH64_TLS_DTPMOD64: /* efectively is TLS_DTPREL64 */
+ *where += (Elf_Addr)(def->st_value + rela->r_addend);
+ break;
case R_AARCH64_RELATIVE:
*where = (Elf_Addr)(obj->relocbase + rela->r_addend);
+ break;
+ case R_AARCH64_NONE:
break;
default:
rtld_printf("%s: Unhandled relocation %lu\n",
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