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authorJan Kratochvil <jan.kratochvil@redhat.com>2011-10-09 19:21:39 +0000
committerJan Kratochvil <jan.kratochvil@redhat.com>2011-10-09 19:21:39 +0000
commit8e3b41a9061833aa9dc504d68e7446bca4984f16 (patch)
treec156fe7efb3ee9ff8c1cad54a4e65e3b650495f5 /gdb/dwarf2expr.h
parentb6cdc2c1b50937e63d8a9b3a462015912fc3587e (diff)
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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.
Diffstat (limited to 'gdb/dwarf2expr.h')
-rw-r--r--gdb/dwarf2expr.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/gdb/dwarf2expr.h b/gdb/dwarf2expr.h
index 9bd7268..8518f37 100644
--- a/gdb/dwarf2expr.h
+++ b/gdb/dwarf2expr.h
@@ -62,6 +62,15 @@ struct dwarf_expr_context_funcs
meaningful to substitute a stub type of the correct size. */
struct type *(*get_base_type) (struct dwarf_expr_context *ctx, size_t die);
+ /* Push on DWARF stack an entry evaluated for DW_TAG_GNU_call_site's
+ DWARF_REG/FB_OFFSET at the caller of specified BATON. If DWARF register
+ number DWARF_REG specifying the push_dwarf_reg_entry_value parameter is
+ not -1 FB_OFFSET is ignored. Otherwise FB_OFFSET specifies stack
+ parameter offset against caller's stack pointer (which equals the callee's
+ frame base). */
+ void (*push_dwarf_reg_entry_value) (struct dwarf_expr_context *ctx,
+ int dwarf_reg, CORE_ADDR fb_offset);
+
#if 0
/* Not yet implemented. */
@@ -267,5 +276,9 @@ CORE_ADDR ctx_no_get_frame_pc (void *baton);
CORE_ADDR ctx_no_get_tls_address (void *baton, CORE_ADDR offset);
void ctx_no_dwarf_call (struct dwarf_expr_context *ctx, size_t die_offset);
struct type *ctx_no_get_base_type (struct dwarf_expr_context *ctx, size_t die);
+void ctx_no_push_dwarf_reg_entry_value (struct dwarf_expr_context *ctx,
+ int dwarf_reg, CORE_ADDR fb_offset);
+
+int dwarf_block_to_dwarf_reg (const gdb_byte *buf, const gdb_byte *buf_end);
#endif /* dwarf2expr.h */