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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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39
gdb/utils.c
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@ -403,6 +403,24 @@ make_cleanup_unpush_target (struct target_ops *ops)
return make_my_cleanup (&cleanup_chain, do_unpush_target, ops);
}
/* Helper for make_cleanup_htab_delete compile time checking the types. */
static void
do_htab_delete_cleanup (void *htab_voidp)
{
htab_t htab = htab_voidp;
htab_delete (htab);
}
/* Return a new cleanup that deletes HTAB. */
struct cleanup *
make_cleanup_htab_delete (htab_t htab)
{
return make_cleanup (do_htab_delete_cleanup, htab);
}
struct restore_ui_file_closure
{
struct ui_file **variable;
@ -2911,6 +2929,27 @@ print_core_address (struct gdbarch *gdbarch, CORE_ADDR address)
return hex_string_custom (address, 16);
}
/* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */
hashval_t
core_addr_hash (const void *ap)
{
const CORE_ADDR *addrp = ap;
return *addrp;
}
/* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */
int
core_addr_eq (const void *ap, const void *bp)
{
const CORE_ADDR *addr_ap = ap;
const CORE_ADDR *addr_bp = bp;
return *addr_ap == *addr_bp;
}
static char *
decimal2str (char *sign, ULONGEST addr, int width)
{