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

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DW_EH_PE_aligned encoding.
This commit is contained in:
Mark Kettenis 2003-09-08 22:43:40 +00:00
parent 04ed252fc1
commit 68f6cf990a
2 changed files with 25 additions and 7 deletions
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5
gdb/ChangeLog
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@ -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> 2003-09-08 Daniel Jacobowitz <drow@mvista.com>
* infrun.c (normal_stop): Don't print a message if the inferior * infrun.c (normal_stop): Don't print a message if the inferior

27
gdb/dwarf2-frame.c
View File

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