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| author | Cary Coutant <ccoutant@google.com> | 2009-10-08 21:00:04 +0000 |
|---|---|---|
| committer | Cary Coutant <ccoutant@gcc.gnu.org> | 2009-10-08 14:00:04 -0700 |
| commit | 77831620cf45a82c54a85091dcdc9e0affea47a9 (patch) | |
| tree | d4e268cc74aaa313626c0a3a838960f89e919d48 /gcc/debug.c | |
| parent | 968e57283eda9b6f9eb513b0e8572c8a9efaa79f (diff) | |
| download | gcc-77831620cf45a82c54a85091dcdc9e0affea47a9.zip gcc-77831620cf45a82c54a85091dcdc9e0affea47a9.tar.gz gcc-77831620cf45a82c54a85091dcdc9e0affea47a9.tar.bz2 | |
Add support for debugging with ICF (Identical Code Folding).
gcc/ChangeLog:
Add support for debugging with ICF (Identical Code Folding).
* calls.c (debug.h): New #include.
(emit_call_1): Call virtual_call_token debug hook.
* common.opt (-fenable-icf-debug): New option.
* dwarf2out.c (dwarf2_debug_hooks): Add entries for new hooks (two
locations in the source).
(poc_label_num): New variable.
(dcall_entry, vcall_entry): New typedefs.
(dcall_table, vcall_table): New variables.
(struct vcall_insn): New type.
(vcall_insn_table): New variable.
(DEBUG_DCALL_SECTION, DEBUG_VCALL_SECTION): New macros.
(size_of_dcall_table): New function.
(output_dcall_table): New function.
(size_of_vcall_table): New function.
(output_vcall_table): New function.
(dwarf2out_direct_call): New function.
(vcall_insn_table_hash): New function.
(vcall_insn_table_eq): New function.
(dwarf2out_virtual_call_token): New function.
(dwarf2out_virtual_call): New function.
(dwarf2out_init): Allocate new tables and sections.
(prune_unused_types): Mark DIEs referenced from direct call table.
(dwarf2out_finish): Output direct and virtual call tables.
* final.c (final_scan_insn): Call direct_call and virtual_call
debug hooks.
* debug.h (struct gcc_debug_hooks): Add direct_call,
virtual_call_token, virtual_call hooks.
(debug_nothing_uid): New function.
* debug.c (do_nothing_debug_hooks): Add dummy entries for new hooks.
(debug_nothing_uid): New function.
* dbxout.c (dbx_debug_hooks): Add dummy entries for new hooks.
* sdbout.c (sdb_debug_hooks): Likewise.
* vmsdbgout.c (vmsdbg_debug_hooks): Likewise.
* doc/invoke.texi (-fenable-icf-debug): New option.
gcc/testsuite/ChangeLog:
Add support for debugging with ICF (Identical Code Folding).
* g++.dg/debug/dwarf2/icf.C: New test.
From-SVN: r152577
Diffstat (limited to 'gcc/debug.c')
| -rw-r--r-- | gcc/debug.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/debug.c b/gcc/debug.c index df69fd5..8035c43 100644 --- a/gcc/debug.c +++ b/gcc/debug.c @@ -50,6 +50,9 @@ const struct gcc_debug_hooks do_nothing_debug_hooks = debug_nothing_int, /* handle_pch */ debug_nothing_rtx, /* var_location */ debug_nothing_void, /* switch_text_section */ + debug_nothing_tree, /* direct_call */ + debug_nothing_tree_int, /* virtual_call_token */ + debug_nothing_uid, /* virtual_call */ debug_nothing_tree_tree, /* set_name */ 0 /* start_end_main_source_file */ }; @@ -127,3 +130,8 @@ debug_nothing_tree_int (tree decl ATTRIBUTE_UNUSED, int local ATTRIBUTE_UNUSED) { } + +void +debug_nothing_uid (int uid ATTRIBUTE_UNUSED) +{ +} |