bfd/

[thirdparty/binutils-gdb.git] / bfd / elf-eh-frame.c

diff --git a/bfd/elf-eh-frame.c b/bfd/elf-eh-frame.c
index 4ea96273426f706d20e6f9c13259fdb8ab0f5b2d..995dac04ee0649596ed430a476a470936fd9d6af 100644 (file)
--- a/bfd/elf-eh-frame.c
+++ b/bfd/elf-eh-frame.c
@@ -423,6 +423,28 @@ skip_non_nops (bfd_byte *buf, bfd_byte *end, unsigned int encoded_ptr_width,
   return last;
 }
 
+/* Convert absolute encoding ENCODING into PC-relative form.
+   SIZE is the size of a pointer.  */
+
+static unsigned char
+make_pc_relative (unsigned char encoding, unsigned int ptr_size)
+{
+  if ((encoding & 0x7f) == DW_EH_PE_absptr)
+    switch (ptr_size)
+      {
+      case 2:
+       encoding |= DW_EH_PE_sdata2;
+       break;
+      case 4:
+       encoding |= DW_EH_PE_sdata4;
+       break;
+      case 8:
+       encoding |= DW_EH_PE_sdata8;
+       break;
+      }
+  return encoding | DW_EH_PE_pcrel;
+}
+
 /* Called before calling _bfd_elf_parse_eh_frame on every input bfd's
    .eh_frame section.  */
 
@@ -1454,7 +1476,7 @@ _bfd_elf_write_section_eh_frame (bfd *abfd,
                {
                  BFD_ASSERT (action & 1);
                  *aug++ = 'R';
-                 *buf++ = DW_EH_PE_pcrel;
+                 *buf++ = make_pc_relative (DW_EH_PE_absptr, ptr_size);
                  action &= ~1;
                }
 
@@ -1465,7 +1487,7 @@ _bfd_elf_write_section_eh_frame (bfd *abfd,
                    if (action & 2)
                      {
                        BFD_ASSERT (*buf == ent->lsda_encoding);
-                       *buf |= DW_EH_PE_pcrel;
+                       *buf = make_pc_relative (*buf, ptr_size);
                        action &= ~2;
                      }
                    buf++;
@@ -1506,7 +1528,7 @@ _bfd_elf_write_section_eh_frame (bfd *abfd,
                    if (action & 1)
                      {
                        BFD_ASSERT (*buf == ent->fde_encoding);
-                       *buf |= DW_EH_PE_pcrel;
+                       *buf = make_pc_relative (*buf, ptr_size);
                        action &= ~1;
                      }
                    buf++;