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* dwarf2read.c (optimized_out, islocal): Remove.

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(decode_locdesc): Update comments.  Don't set optimized_out
	or islocal.
This commit is contained in:
Daniel Jacobowitz 2003-11-18 21:51:38 +00:00
parent 1abe91b1db
commit 6b992462c7
2 changed files with 11 additions and 17 deletions
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6
gdb/ChangeLog
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@ -1,3 +1,9 @@
2003-11-18 Daniel Jacobowitz <drow@mvista.com>
* dwarf2read.c (optimized_out, islocal): Remove.
(decode_locdesc): Update comments. Don't set optimized_out
or islocal.
2003-11-17 Jeff Johnston <jjohnstn@redhat.com> 2003-11-17 Jeff Johnston <jjohnstn@redhat.com>
David Mosberger <davidm@hpl.hp.com> David Mosberger <davidm@hpl.hp.com>

22
gdb/dwarf2read.c
View file

@ -443,8 +443,6 @@ static struct pending **list_in_scope = &file_symbols;
none of the flags are set, the object lives at the address returned none of the flags are set, the object lives at the address returned
by decode_locdesc. */ by decode_locdesc. */
static int optimized_out; /* No ops in location in expression,
so object was optimized out. */
static int isreg; /* Object lives in register. static int isreg; /* Object lives in register.
decode_locdesc's return value is decode_locdesc's return value is
the register number. */ the register number. */
@ -454,12 +452,6 @@ static int offreg; /* Object's address is the sum of the
static int basereg; /* See `offreg'. */ static int basereg; /* See `offreg'. */
static int isderef; /* Value described by flags above is static int isderef; /* Value described by flags above is
the address of a pointer to the object. */ the address of a pointer to the object. */
static int islocal; /* Variable is at the returned offset
from the frame start, but there's
no identified frame pointer for
this function, so we can't say
which register it's relative to;
use LOC_LOCAL. */
/* DW_AT_frame_base values for the current function. /* DW_AT_frame_base values for the current function.
frame_base_reg is -1 if DW_AT_frame_base is missing, otherwise it frame_base_reg is -1 if DW_AT_frame_base is missing, otherwise it
@ -6891,8 +6883,10 @@ dwarf2_fundamental_type (struct objfile *objfile, int typeid)
FIXME: Implement more operations as necessary. FIXME: Implement more operations as necessary.
A location description containing no operations indicates that the A location description containing no operations indicates that the
object is optimized out. The global optimized_out flag is set for object is optimized out. The return value is meaningless for that case.
those, the return value is meaningless. FIXME drow/2003-11-16: No callers check for this case any more; soon all
callers will only want a very basic result and this can become a
complaint.
When the result is a register number, the global isreg flag is set, When the result is a register number, the global isreg flag is set,
otherwise it is cleared. otherwise it is cleared.
@ -6901,9 +6895,7 @@ dwarf2_fundamental_type (struct objfile *objfile, int typeid)
and the register number is returned in basereg, otherwise it is cleared. and the register number is returned in basereg, otherwise it is cleared.
When the DW_OP_fbreg operation is encountered without a corresponding When the DW_OP_fbreg operation is encountered without a corresponding
DW_AT_frame_base attribute, the global islocal flag is set. DW_AT_frame_base attribute, we complain.
Hopefully the machine dependent code knows how to set up a virtual
frame pointer for the local references.
Note that stack[0] is unused except as a default error return. Note that stack[0] is unused except as a default error return.
Note that stack overflow is not yet handled. */ Note that stack overflow is not yet handled. */
@ -6927,12 +6919,9 @@ decode_locdesc (struct dwarf_block *blk, struct dwarf2_cu *cu)
isreg = 0; isreg = 0;
offreg = 0; offreg = 0;
isderef = 0; isderef = 0;
islocal = 0;
optimized_out = 1;
while (i < size) while (i < size)
{ {
optimized_out = 0;
op = data[i++]; op = data[i++];
switch (op) switch (op)
{ {
@ -7073,7 +7062,6 @@ decode_locdesc (struct dwarf_block *blk, struct dwarf2_cu *cu)
{ {
complaint (&symfile_complaints, complaint (&symfile_complaints,
"DW_AT_frame_base missing for DW_OP_fbreg"); "DW_AT_frame_base missing for DW_OP_fbreg");
islocal = 1;
} }
break; break;