[lld-macho] Sign arm64e TLV bootstrap binds and list __auth_got in map files (#234004)
Two small arm64e changes:
1. Sign the arm64e TLV bootstrap pointer as ld64 does. The first word of
a thread-local variable descriptor is bound to `__tlv_bootstrap`, which
dyld replaces with a pointer to `tlv_get_addr` that TLV accesses call
with `blraaz`. On arm64e, write that bind as an auth'd bind with the IA
key and no diversity, even though the object asks for a plain pointer.
2. List arm64e `__auth_got` entries in the map file. The map file
printed the entries of `__got` but not those of `__auth_got`, which
holds the targets of the stubs and the personalities.
Assisted-by: Claude
llvm-project
10b0bd6e - [lld-macho] Sign arm64e TLV bootstrap binds and list __auth_got in map files (#234004)
