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* dwarf2-frame.c (read_encoded_value): Change type of third

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argument to `unsigned char *'.  Add support for LEB128 encodings.
This commit is contained in:
Mark Kettenis
2004-11-04 21:15:15 +00:00
parent c3c766200a
commit a81b10aef7
2 changed files with 22 additions and 3 deletions
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20
gdb/dwarf2-frame.c
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@@ -1067,7 +1067,7 @@ size_of_encoded_value (unsigned char encoding)
static CORE_ADDR
read_encoded_value (struct comp_unit *unit, unsigned char encoding,
char *buf, unsigned int *bytes_read_ptr)
unsigned char *buf, unsigned int *bytes_read_ptr)
{
int ptr_len = size_of_encoded_value (DW_EH_PE_absptr);
ptrdiff_t offset;
@@ -1088,7 +1088,7 @@ read_encoded_value (struct comp_unit *unit, unsigned char encoding,
break;
case DW_EH_PE_pcrel:
base = bfd_get_section_vma (unit->bfd, unit->dwarf_frame_section);
base += (buf - unit->dwarf_frame_buffer);
base += ((char *) buf - unit->dwarf_frame_buffer);
break;
case DW_EH_PE_datarel:
base = unit->dbase;
@@ -1106,7 +1106,7 @@ read_encoded_value (struct comp_unit *unit, unsigned char encoding,
break;
case DW_EH_PE_aligned:
base = 0;
offset = buf - unit->dwarf_frame_buffer;
offset = (char *) buf - unit->dwarf_frame_buffer;
if ((offset % ptr_len) != 0)
{
*bytes_read_ptr = ptr_len - (offset % ptr_len);
@@ -1122,6 +1122,13 @@ read_encoded_value (struct comp_unit *unit, unsigned char encoding,
switch (encoding & 0x0f)
{
case DW_EH_PE_uleb128:
{
ULONGEST value;
unsigned char *end_buf = buf + (sizeof (value) + 1) * 8 / 7;
*bytes_read_ptr = read_uleb128 (buf, end_buf, &value) - buf;
return base + value;
}
case DW_EH_PE_udata2:
*bytes_read_ptr += 2;
return (base + bfd_get_16 (unit->abfd, (bfd_byte *) buf));
@@ -1131,6 +1138,13 @@ read_encoded_value (struct comp_unit *unit, unsigned char encoding,
case DW_EH_PE_udata8:
*bytes_read_ptr += 8;
return (base + bfd_get_64 (unit->abfd, (bfd_byte *) buf));
case DW_EH_PE_sleb128:
{
LONGEST value;
char *end_buf = buf + (sizeof (value) + 1) * 8 / 7;
*bytes_read_ptr = read_sleb128 (buf, end_buf, &value) - buf;
return base + value;
}
case DW_EH_PE_sdata2:
*bytes_read_ptr += 2;
return (base + bfd_get_signed_16 (unit->abfd, (bfd_byte *) buf));