cddl/contrib/opensolaris/lib/libdtrace/common/dt_link.c
231–234	32-bit-related code is suggested to be removed.
1149	Correcting `pcaddu12i` to `pcaddu18i` is right, and the added distinction between `bl`/`b` and `pcaddu18i` + `jirl` is consistent with the subsequent handling of `R_LARCH_B26` / `R_LARCH_CALL36`. Suggested change to: * LoongArch uses bl/b for short calls/jumps and pcaddu18i + jirl for * long calls. Calls are converted into a no-op whereas tail calls * become a return. In LLVM's `LoongArchExpandPseudoInsts.cpp`, `expandFunctionCALL()`: // CALL: pcaddu18i $ra, %call36(func) // jirl $ra, $ra, 0 // TAIL: pcaddu18i $t8, %call36(func) // jirl $r0, $t8, 0
1152	These are needed to identify and classify the instructions that R_LARCH_B26 relocations refer to. add the branch-instruction encodings: #define DT_OP_BL 0x54000000 /* bl / #define DT_OP_B 0x50000000 b / #define DT_OP_PCADDU18I 0x1e000000 /* pcaddu18i / #define DT_OP_JIRL 0x4c000000 / jirl / #define DT_OP_IS_JIRL(op) (((op) & 0xfc000000) == 0x4c000000) `dt_modtext()` is still a stub implementation internally, and the handling logic for `R_LARCH_B26` / `R_LARCH_CALL36` still needs to be filled in later. All opcodes come from LLVM TableGen definitions. / LoongArch/LoongArchInstrInfo.td / def B : Br_I26<0x50000000>; / line 848 / def BL : FmtI26<0x54000000, ...>; / line 851 / def JIRL : Fmt2RI<0x4c000000, ...>; / line 853 / def PCADDU18I : ALU_1RI20<0x1e000000, simm20_pcaddu18i>; / line 958 */
1171	Sync the same change: if (GELF_R_TYPE(rela->r_info) != R_LARCH_B26 && GELF_R_TYPE(rela->r_info) != R_LARCH_CALL36 && GELF_R_TYPE(rela->r_info) != R_LARCH_NONE)
1325–1326	Remove these lines. FreeBSD LoongArch is LP64 only; there is no 32-bit LoongArch port. Handling it in the ELFCLASS32 branch is misleading and inconsistent with upstream FreeBSD's deprecation of 32-bit platforms.