Implement R_PPC_EMB_{SDA21,RELSDA} relocations

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index d8ae120f6d30948d15c5e3b883f7854d8dca65ec..25230aa04afdac6d827d0a0599a5d758221f8887 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -3,6 +3,8 @@ Tue Jan 23 14:33:05 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
        * elf32-ppc.c (ppc_elf_copy_private_bfd_data): Don't complain if
        the embedded bit is set on some objects and not on others.  Just
        or it together.
+       (ppc_elf_relocate_section): Implement R_PPC_EMB_{SDA21,RELSDA}
+       relocations.
 
 Tue Jan 23 14:22:45 1996  Ian Lance Taylor  <ian@cygnus.com>
 

diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c
index 975044222e9687c92d5dfe3153a9dd7262006560..541aadf8ebc2a84abc5e439c6b7e20c382feaf1b 100644 (file)
--- a/bfd/elf32-ppc.c
+++ b/bfd/elf32-ppc.c
@@ -145,7 +145,9 @@ static boolean ppc_elf_finish_dynamic_symbol PARAMS ((bfd *,
 
 static boolean ppc_elf_finish_dynamic_sections PARAMS ((bfd *, struct bfd_link_info *));
 
-#define BRANCH_PREDICT_BIT 0x200000
+#define BRANCH_PREDICT_BIT 0x200000            /* branch prediction bit for branch taken relocs */
+#define RA_REGISTER_MASK 0x001f0000            /* mask to set RA in memory instructions */
+#define RA_REGISTER_SHIFT 16                   /* value to shift register by to insert RA */
 
 /* The name of the dynamic interpreter.  This is put in the .interp
    section.  */
@@ -2288,8 +2290,15 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
                ret = false;
                continue;
              }
-           goto unsupported;
+
+           if (r_type == R_PPC_EMB_SDA21)
+             {                 /* fill in register field */
+               insn = bfd_get_32 (output_bfd, contents + offset - 2);
+               insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
+               bfd_put_32 (output_bfd, insn, contents + offset - 2);
+             }
          }
+         break;
 
        case (int)R_PPC_PLTREL24:
        case (int)R_PPC_COPY: