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Implement basic support for DW_TAG_GNU_call_site.
	* block.c: Include gdbtypes.h and exceptions.h.
	(call_site_for_pc): New function.
	* block.h (call_site_for_pc): New declaration.
	* defs.h: Include hashtab.h.
	(make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New
	declarations.
	* dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install
	ctx_no_push_dwarf_reg_entry_value.
	* dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL.
	(dwarf_block_to_dwarf_reg): New function.
	(execute_stack_op) <DW_OP_GNU_entry_value>: Implement it.
	(ctx_no_push_dwarf_reg_entry_value): New function.
	* dwarf2expr.h (struct dwarf_expr_context_funcs): New field
	push_dwarf_reg_entry_value.
	(ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New
	declarations.
	* dwarf2loc.c: Include gdbcmd.h.
	(dwarf_expr_ctx_funcs): New forward declaration.
	(entry_values_debug, show_entry_values_debug, call_site_to_target_addr)
	(dwarf_expr_reg_to_entry_parameter)
	(dwarf_expr_push_dwarf_reg_entry_value): New.
	(dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value.
	(dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR.
	(needs_dwarf_reg_entry_value): New function.
	(needs_frame_ctx_funcs): Install it.
	(_initialize_dwarf2loc): New function.
	* dwarf2loc.h (entry_values_debug): New declaration.
	* dwarf2read.c (struct dwarf2_cu): New field call_site_htab.
	(read_call_site_scope): New forward declaration.
	(process_full_comp_unit): Copy call_site_htab.
	(process_die): Support DW_TAG_GNU_call_site.
	(read_call_site_scope): New function.
	(dwarf2_get_pc_bounds): Support NULL HIGHPC.
	(dwarf_tag_name): Support DW_TAG_GNU_call_site.
	(cleanup_htab): Delete.
	(write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it.
	* exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR.
	* gdb-gdb.py (StructMainTypePrettyPrinter): Support
	FIELD_LOC_KIND_DWARF_BLOCK.
	* gdbtypes.h (enum field_loc_kind): New entry
	FIELD_LOC_KIND_DWARF_BLOCK.
	(struct main_type): New loc entry dwarf_block.
	(struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK)
	(TYPE_FIELD_DWARF_BLOCK): New.
	* python/py-type.c: Include dwarf2loc.h.
	(check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK.  New
	internal_error call on unknown FIELD_LOC_KIND.
	* symtab.h (struct symtab): New field call_site_htab.
	* utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete)
	(core_addr_hash, core_addr_eq): New functions.

gdb/testsuite/
	Implement basic support for DW_TAG_GNU_call_site.
	* gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value.
	* gdb.arch/amd64-entry-value.cc: New file.
	* gdb.arch/amd64-entry-value.exp: New file.
This commit is contained in:
Jan Kratochvil
2011-10-09 19:21:39 +00:00
parent b6cdc2c1b5
commit 8e3b41a906
20 changed files with 921 additions and 26 deletions
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17
gdb/python/py-type.c
View File

@ -29,6 +29,7 @@
#include "language.h"
#include "vec.h"
#include "bcache.h"
#include "dwarf2loc.h"
typedef struct pyty_type_object
{
@ -900,6 +901,22 @@ check_types_equal (struct type *type1, struct type *type2,
FIELD_STATIC_PHYSNAME (*field2)))
return Py_NE;
break;
case FIELD_LOC_KIND_DWARF_BLOCK:
{
struct dwarf2_locexpr_baton *block1, *block2;
block1 = FIELD_DWARF_BLOCK (*field1);
block2 = FIELD_DWARF_BLOCK (*field2);
if (block1->per_cu != block2->per_cu
|| block1->size != block2->size
|| memcmp (block1->data, block2->data, block1->size) != 0)
return Py_NE;
}
break;
default:
internal_error (__FILE__, __LINE__, _("Unsupported field kind "
"%d by check_types_equal"),
FIELD_LOC_KIND (*field1));
}
entry.type1 = FIELD_TYPE (*field1);