x86: Check invalid TLS descriptor call
TLS descriptor call,
call *x@tlsdesc(%rax)
or
call *x@tlsdesc(%eax)
calls _dl_tlsdesc_return which expects that RAX/EAX points to the TLS
descriptor. Update x86 linker to issue an error with or without TLS
transition.
bfd/
PR ld/32123
* elf32-i386.c (elf_i386_check_tls_transition): Move
R_386_TLS_DESC_CALL to ...
(elf_i386_tls_transition): Here.
* elf64-x86-64.c (elf_x86_64_check_tls_transition): Move.
R_X86_64_TLSDESC_CALL check to ...
(elf_x86_64_tls_transition): Here.
ld/
PR ld/32123
* testsuite/ld-i386/i386.exp: Run tlsgdesc3.
* testsuite/ld-i386/tlsgdesc3.d: New file.
* testsuite/ld-x86-64/tlsdesc5.d: Likewise.
* testsuite/ld-x86-64/x86-64.exp: Run tlsdesc5.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
6 files changed
