https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106951
Bug ID: 106951
Summary: Segmentation fault during compilation while using
modules
Product: gcc
Version: 12.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: huscar at gmail dot com
Target Milestone: ---
Created attachment 53579
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53579&action=edit
Zipper preprocessor source
Got a segmentation fault during compilation when porting a project over to
modules.
encountered on 12.2.0 (from docker gcc:12.2.0) and 11.2.0 (from apt)
command used:
g++ -c src/creatures.cpp -Ilibs/game-engine/include -std=c++20 -Wall -Wextra
-Werror -fmodules-ts -o src/creatures.o -freport-bug
compiler output:
In module imported at libs/game-engine/src/engine.cpp:17:1,
of module GameEngine.Main, imported at src/creatures.cpp:10:
GameEngine.Components.Transform: note: unable to represent further imported
source locations
In module imported at libs/game-engine/src/engine.cpp:21:1:
Segmentation fault
0x1b9fe76 internal_error(char const*, ...)
???:0
0x1bab157 pp_format(pretty_printer*, text_info*)
???:0
0x1bac520 pp_verbatim(pretty_printer*, char const*, ...)
???:0
0x1b9eca1 diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*)
???:0
0x1b9f782 warning_at(unsigned int, int, char const*, ...)
???:0
0x9a6c07 do_warn_unused_parameter(tree_node*)
???:0
0x7cd12f finish_function(bool)
???:0
0x8c11c9 instantiate_decl(tree_node*, bool, bool)
???:0
0x8d5cab instantiate_pending_templates(int)
???:0
0x7db2df c_parse_final_cleanups()
???:0
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
I've attached the preprocessor source attached.
Segfault goes away after removing the line:
import GameEngine.Main;
The other import declaration in the same source file do not cause segmentation
faults, nor does that same import (GameEngine.Main) from a different source
file.
