* dwarf2-frame.c (read_encoded_value): Add support for

DW_EH_PE_aligned encoding.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 308c71919c60ba399eef4bc761fa507ab3264269..40d58ca55d9308617c920e3b8af8920412b467ad 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2003-09-09  Mark Kettenis  <kettenis@gnu.org>
+
+       * dwarf2-frame.c (read_encoded_value): Add support for
+       DW_EH_PE_aligned encoding.
+
 2003-09-08  Daniel Jacobowitz  <drow@mvista.com>
 
        * infrun.c (normal_stop): Don't print a message if the inferior

diff --git a/gdb/dwarf2-frame.c b/gdb/dwarf2-frame.c
index 9b23841967b75d8cae73a5e1f7eb71e3854338c2..c1a79ceef2ac39435c8bd8f3390244fd0056a4eb 100644 (file)
--- a/gdb/dwarf2-frame.c
+++ b/gdb/dwarf2-frame.c
@@ -932,6 +932,8 @@ static CORE_ADDR
 read_encoded_value (struct comp_unit *unit, unsigned char encoding,
                    char *buf, unsigned int *bytes_read_ptr)
 {
+  int ptr_len = size_of_encoded_value (DW_EH_PE_absptr);
+  ptrdiff_t offset;
   CORE_ADDR base;
 
   /* GCC currently doesn't generate DW_EH_PE_indirect encodings for
@@ -940,6 +942,8 @@ read_encoded_value (struct comp_unit *unit, unsigned char encoding,
     internal_error (__FILE__, __LINE__, 
                    "Unsupported encoding: DW_EH_PE_indirect");
 
+  *bytes_read_ptr = 0;
+
   switch (encoding & 0x70)
     {
     case DW_EH_PE_absptr:
@@ -952,32 +956,41 @@ read_encoded_value (struct comp_unit *unit, unsigned char encoding,
     case DW_EH_PE_datarel:
       base = unit->dbase;
       break;
+    case DW_EH_PE_aligned:
+      base = 0;
+      offset = buf - unit->dwarf_frame_buffer;
+      if ((offset % ptr_len) != 0)
+       {
+         *bytes_read_ptr = ptr_len - (offset % ptr_len);
+         buf += *bytes_read_ptr;
+       }
+      break;
     default:
       internal_error (__FILE__, __LINE__, "Invalid or unsupported encoding");
     }
 
   if ((encoding & 0x0f) == 0x00)
-    encoding |= encoding_for_size (TYPE_LENGTH(builtin_type_void_data_ptr));
+    encoding |= encoding_for_size (ptr_len);
 
   switch (encoding & 0x0f)
     {
     case DW_EH_PE_udata2:
-      *bytes_read_ptr = 2;
+      *bytes_read_ptr += 2;
       return (base + bfd_get_16 (unit->abfd, (bfd_byte *) buf));
     case DW_EH_PE_udata4:
-      *bytes_read_ptr = 4;
+      *bytes_read_ptr += 4;
       return (base + bfd_get_32 (unit->abfd, (bfd_byte *) buf));
     case DW_EH_PE_udata8:
-      *bytes_read_ptr = 8;
+      *bytes_read_ptr += 8;
       return (base + bfd_get_64 (unit->abfd, (bfd_byte *) buf));
     case DW_EH_PE_sdata2:
-      *bytes_read_ptr = 2;
+      *bytes_read_ptr += 2;
       return (base + bfd_get_signed_16 (unit->abfd, (bfd_byte *) buf));
     case DW_EH_PE_sdata4:
-      *bytes_read_ptr = 4;
+      *bytes_read_ptr += 4;
       return (base + bfd_get_signed_32 (unit->abfd, (bfd_byte *) buf));
     case DW_EH_PE_sdata8:
-      *bytes_read_ptr = 8;
+      *bytes_read_ptr += 8;
       return (base + bfd_get_signed_64 (unit->abfd, (bfd_byte *) buf));
     default:
       internal_error (__FILE__, __LINE__, "Invalid or unsupported encoding");