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2003-04-13 Daniel Jacobowitz <drow@mvista.com>

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* dwarf2expr.c (dwarf2_read_address): Renamed from read_address;
	made non-static.
	(execute_stack_op): All callers updated.
	* dwarf2expr.h: Add prototype for dwarf2_read_address.
	* dwarf2loc.c (find_location_expression): New function.
	(dwarf_expr_frame_base): Call it.
	(dwarf2_evaluate_loc_desc): Handle 0-length location expressions.
	(dwarf2_tracepoint_var_ref): New function, broken out from
	locexpr_tracepoint_var_ref.
	(locexpr_tracepoint_var_ref): Call dwarf2_tracepoint_var_ref.
	Make static.
	(loclist_read_variable, loclist_read_needs_frame): New functions.
	(loclist_describe_location, loclist_tracepoint_var_ref): New
	functions.
	(dwarf2_loclist_funcs): New struct location_funcs.
	* dwarf2loc.h (struct dwarf2_loclist_baton): New type.
	(struct dwarf2_locexpr_baton): Add comments.
	(dwarf2_loclist_funcs): New extern.
	* dwarf2read.c (struct comp_unit_head): Remove DIE member, add
	base_address and base_known.
	(dwarf_loc_buffer): New variable.
	(struct dwarf2_pinfo): Add dwarf_loc_buffer and dwarf_loc_size.
	(DWARF_LOC_BUFFER, DWARF_LOC_SIZE): New macros.
	(dwarf2_has_info): Initialize dwarf_loc_offset.
	(dwarf2_build_psymtabs): Read in .debug_loc.
	(dwarf2_build_psymtabs_hard): Use DWARF_LOC_BUFFER and
	DWARF_LOC_SIZE.
	(psymtab_to_symtab_1): Likewise.  Move base address calculation
	here, from...
	(dwarf2_get_pc_bounds): ... here.  Use the base address from
	cu_header.
	(dwarf2_symbol_mark_computed): Handle location lists.
This commit is contained in:
Daniel Jacobowitz
2003-04-13 15:43:35 +00:00
parent 6aca59a359
commit 0d53c4c49f
6 changed files with 388 additions and 112 deletions
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29
gdb/dwarf2expr.c
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@ -170,13 +170,13 @@ read_sleb128 (unsigned char *buf, unsigned char *buf_end, LONGEST * r)
BUF_END. The address is returned, and *BYTES_READ is set to the
number of bytes read from BUF. */
static CORE_ADDR
read_address (unsigned char *buf, unsigned char *buf_end, int *bytes_read)
CORE_ADDR
dwarf2_read_address (unsigned char *buf, unsigned char *buf_end, int *bytes_read)
{
CORE_ADDR result;
if (buf_end - buf < TARGET_ADDR_BIT / TARGET_CHAR_BIT)
error ("read_address: Corrupted DWARF expression.");
error ("dwarf2_read_address: Corrupted DWARF expression.");
*bytes_read = TARGET_ADDR_BIT / TARGET_CHAR_BIT;
result = extract_address (buf, TARGET_ADDR_BIT / TARGET_CHAR_BIT);
@ -277,7 +277,7 @@ execute_stack_op (struct dwarf_expr_context *ctx, unsigned char *op_ptr,
break;
case DW_OP_addr:
result = read_address (op_ptr, op_end, &bytes_read);
result = dwarf2_read_address (op_ptr, op_end, &bytes_read);
op_ptr += bytes_read;
break;
@ -467,9 +467,10 @@ execute_stack_op (struct dwarf_expr_context *ctx, unsigned char *op_ptr,
(ctx->read_mem) (ctx->baton, buf, result,
TARGET_ADDR_BIT / TARGET_CHAR_BIT);
result = read_address (buf,
buf + TARGET_ADDR_BIT / TARGET_CHAR_BIT,
&bytes_read);
result = dwarf2_read_address (buf,
buf + (TARGET_ADDR_BIT
/ TARGET_CHAR_BIT),
&bytes_read);
}
result = result + offset;
ctx->stack_len = before_stack_len;
@ -528,9 +529,10 @@ execute_stack_op (struct dwarf_expr_context *ctx, unsigned char *op_ptr,
(ctx->read_mem) (ctx->baton, buf, result,
TARGET_ADDR_BIT / TARGET_CHAR_BIT);
result = read_address (buf,
buf + TARGET_ADDR_BIT / TARGET_CHAR_BIT,
&bytes_read);
result = dwarf2_read_address (buf,
buf + (TARGET_ADDR_BIT
/ TARGET_CHAR_BIT),
&bytes_read);
}
break;
@ -540,9 +542,10 @@ execute_stack_op (struct dwarf_expr_context *ctx, unsigned char *op_ptr,
int bytes_read;
(ctx->read_mem) (ctx->baton, buf, result, *op_ptr++);
result = read_address (buf,
buf + TARGET_ADDR_BIT / TARGET_CHAR_BIT,
&bytes_read);
result = dwarf2_read_address (buf,
buf + (TARGET_ADDR_BIT
/ TARGET_CHAR_BIT),
&bytes_read);
}
break;