- bfd_put_32 (output_bfd, PLT_HEADER_WORD1, splt->contents);
- bfd_put_32 (output_bfd, PLT_HEADER_WORD2, splt->contents + 4);
- bfd_put_32 (output_bfd, PLT_HEADER_WORD3, splt->contents + 8);
- bfd_put_32 (output_bfd, PLT_HEADER_WORD4, splt->contents + 12);
-
- /* The next two words will be filled in by ld.so */
- bfd_put_64 (output_bfd, (bfd_vma) 0, splt->contents + 16);
- bfd_put_64 (output_bfd, (bfd_vma) 0, splt->contents + 24);
+ unsigned int insn;
+ int ofs;
+
+ if (elf64_alpha_use_secureplt)
+ {
+ ofs = gotplt_vma - (plt_vma + PLT_HEADER_SIZE);
+
+ insn = INSN_ABC (INSN_SUBQ, 27, 28, 25);
+ bfd_put_32 (output_bfd, insn, splt->contents);
+
+ insn = INSN_ABO (INSN_LDAH, 28, 28, (ofs + 0x8000) >> 16);
+ bfd_put_32 (output_bfd, insn, splt->contents + 4);
+
+ insn = INSN_ABC (INSN_S4SUBQ, 25, 25, 25);
+ bfd_put_32 (output_bfd, insn, splt->contents + 8);
+
+ insn = INSN_ABO (INSN_LDA, 28, 28, ofs);
+ bfd_put_32 (output_bfd, insn, splt->contents + 12);
+
+ insn = INSN_ABO (INSN_LDQ, 27, 28, 0);
+ bfd_put_32 (output_bfd, insn, splt->contents + 16);
+
+ insn = INSN_ABC (INSN_ADDQ, 25, 25, 25);
+ bfd_put_32 (output_bfd, insn, splt->contents + 20);
+
+ insn = INSN_ABO (INSN_LDQ, 28, 28, 8);
+ bfd_put_32 (output_bfd, insn, splt->contents + 24);
+
+ insn = INSN_AB (INSN_JMP, 31, 27);
+ bfd_put_32 (output_bfd, insn, splt->contents + 28);
+
+ insn = INSN_AD (INSN_BR, 28, -PLT_HEADER_SIZE);
+ bfd_put_32 (output_bfd, insn, splt->contents + 32);
+ }
+ else
+ {
+ insn = INSN_AD (INSN_BR, 27, 0); /* br $27, .+4 */
+ bfd_put_32 (output_bfd, insn, splt->contents);
+
+ insn = INSN_ABO (INSN_LDQ, 27, 27, 12);
+ bfd_put_32 (output_bfd, insn, splt->contents + 4);
+
+ insn = INSN_UNOP;
+ bfd_put_32 (output_bfd, insn, splt->contents + 8);
+
+ insn = INSN_AB (INSN_JMP, 27, 27);
+ bfd_put_32 (output_bfd, insn, splt->contents + 12);
+
+ /* The next two words will be filled in by ld.so. */
+ bfd_put_64 (output_bfd, 0, splt->contents + 16);
+ bfd_put_64 (output_bfd, 0, splt->contents + 24);
+ }