FreeChainXenon/binutils-gdb
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* dwarf2loc.c (dwarf_expr_frame_base): Constify.

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(dwarf_expr_frame_base_1): Likewise.
	(read_pieced_value): Update.
	(needs_frame_frame_base): Constify.
	(dwarf2_tracepoint_var_loc): Likewise.
	(dwarf2_tracepoint_var_access): Likewise.
	(locexpr_describe_location_piece): Likewise.
	(locexpr_describe_location_1): Likewise.
	* dwarf2expr.h (struct dwarf_expr_context) <get_frame_base>:
	Constify.
	(data): Now const.
	(struct dwarf_expr_piece) <v.literal.data>: Likewise.
	(dwarf_expr_eval, read_uleb128, read_sleb128)
	(dwarf2_read_address): Update.
	* dwarf2expr.c (dwarf_expr_eval): Constify.
	(read_uleb128): Likewise.
	(read_sleb128): Likewise.
	(dwarf2_read_address): Likewise.
	(require_composition): Likewise.
	(execute_stack_op): Likewise.
	* dwarf2-frame.h (struct dwarf2_frame_state_reg) <loc.exp>: Now a
	"const gdb_byte *".
	* dwarf2-frame.c (struct dwarf2_frame_state_reg_info) <cfa_exp>:
	Now const.
	(no_get_frame_base): Constify.
	(execute_stack_op): Likewise.
	(execute_cfa_program): Likewise.
	(read_encoded_value): Likewise.
This commit is contained in:
Tom Tromey 2010-05-25 16:41:46 +00:00
parent e34838f0f7
commit 0d45f56e47
6 changed files with 85 additions and 47 deletions
Download patch file Download diff file Expand all files Collapse all files

24
gdb/dwarf2expr.c
View file

@ -32,7 +32,7 @@
/* Local prototypes. */
static void execute_stack_op (struct dwarf_expr_context *,
gdb_byte *, gdb_byte *);
const gdb_byte *, const gdb_byte *);
static struct type *unsigned_address_type (struct gdbarch *, int);
/* Create a new context for the expression evaluator. */
@ -193,7 +193,8 @@ add_piece (struct dwarf_expr_context *ctx, ULONGEST size, ULONGEST offset)
CTX. */
void
dwarf_expr_eval (struct dwarf_expr_context *ctx, gdb_byte *addr, size_t len)
dwarf_expr_eval (struct dwarf_expr_context *ctx, const gdb_byte *addr,
size_t len)
{
int old_recursion_depth = ctx->recursion_depth;
@ -208,8 +209,8 @@ dwarf_expr_eval (struct dwarf_expr_context *ctx, gdb_byte *addr, size_t len)
by R, and return the new value of BUF. Verify that it doesn't extend
past BUF_END. */
gdb_byte *
read_uleb128 (gdb_byte *buf, gdb_byte *buf_end, ULONGEST * r)
const gdb_byte *
read_uleb128 (const gdb_byte *buf, const gdb_byte *buf_end, ULONGEST * r)
{
unsigned shift = 0;
ULONGEST result = 0;
@ -234,8 +235,8 @@ read_uleb128 (gdb_byte *buf, gdb_byte *buf_end, ULONGEST * r)
by R, and return the new value of BUF. Verify that it doesn't extend
past BUF_END. */
gdb_byte *
read_sleb128 (gdb_byte *buf, gdb_byte *buf_end, LONGEST * r)
const gdb_byte *
read_sleb128 (const gdb_byte *buf, const gdb_byte *buf_end, LONGEST * r)
{
unsigned shift = 0;
LONGEST result = 0;
@ -263,8 +264,8 @@ read_sleb128 (gdb_byte *buf, gdb_byte *buf_end, LONGEST * r)
doesn't extend past BUF_END. */
CORE_ADDR
dwarf2_read_address (struct gdbarch *gdbarch, gdb_byte *buf,
gdb_byte *buf_end, int addr_size)
dwarf2_read_address (struct gdbarch *gdbarch, const gdb_byte *buf,
const gdb_byte *buf_end, int addr_size)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@ -334,7 +335,8 @@ signed_address_type (struct gdbarch *gdbarch, int addr_size)
expression, or that it is followed by a composition operator. */
static void
require_composition (gdb_byte *op_ptr, gdb_byte *op_end, const char *op_name)
require_composition (const gdb_byte *op_ptr, const gdb_byte *op_end,
const char *op_name)
{
/* It seems like DW_OP_GNU_uninit should be handled here. However,
it doesn't seem to make sense for DW_OP_*_value, and it was not
@ -351,7 +353,7 @@ require_composition (gdb_byte *op_ptr, gdb_byte *op_end, const char *op_name)
static void
execute_stack_op (struct dwarf_expr_context *ctx,
gdb_byte *op_ptr, gdb_byte *op_end)
const gdb_byte *op_ptr, const gdb_byte *op_end)
{
enum bfd_endian byte_order = gdbarch_byte_order (ctx->gdbarch);
@ -583,7 +585,7 @@ execute_stack_op (struct dwarf_expr_context *ctx,
break;
case DW_OP_fbreg:
{
gdb_byte *datastart;
const gdb_byte *datastart;
size_t datalen;
unsigned int before_stack_len;