mirror of
git://gcc.gnu.org/git/gcc.git
synced 2025-03-25 15:20:54 +08:00
77831620cf
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
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the file COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs.html for how to report bugs usefully.