https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105753
Triffid Hunter <triffid.hunter at gmail dot com> changed:
What |Removed |Added
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CC| |triffid.hunter at gmail dot com
--- Comment #5 from Triffid Hunter <triffid.hunter at gmail dot com> ---
Created attachment 53561
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53561&action=edit
patch based on comment 1
I ran into this issue yesterday (with gcc-13.0.0-20220904).
I made the attached patch based on Comment 1, and it does seem to solve the
issue.
I had some odd lto-related crashes afterwards, but wasn't able to reproduce
them after a clean rebuild of my project - so I suspect there was some odd
interaction with stale/cached object files.
lto crash backtrace in case it's relevant:
avr-gcc -Wall -Wextra -Os -g -flto -fuse-linker-plugin -Wl,--gc-sections
-mmcu=atmega2560 -fno-stack-protector -o
/tmp/arduino_build_820599/sketch_sep10a.ino.elf
/tmp/arduino_build_820599/sketch/sketch_sep10a.ino.cpp.o
/tmp/arduino_build_820599/libraries/SD/File.cpp.o
/tmp/arduino_build_820599/libraries/SD/SD.cpp.o
/tmp/arduino_build_820599/libraries/SD/utility/Sd2Card.cpp.o
/tmp/arduino_build_820599/libraries/SD/utility/SdFile.cpp.o
/tmp/arduino_build_820599/libraries/SD/utility/SdVolume.cpp.o
/tmp/arduino_build_820599/libraries/SPI/SPI.cpp.o
/tmp/arduino_build_820599/../arduino_cache_495395/core/core_arduino_avr_mega_cpu_atmega2560_0535ac2d4e0500949a67f524c7f20d71.a
-L/tmp/arduino_build_820599 -lm
lto1: internal compiler error: Segmentation fault
0x135b2a8 internal_error(char const*, ...)
???:0
0x675125 bp_unpack_string(data_in*, bitpack_d*)
???:0
0x986c9e cl_optimization_stream_in(data_in*, bitpack_d*, cl_optimization*)
???:0
0xc3bf60 streamer_read_tree_bitfields(lto_input_block*, data_in*, tree_node*)
???:0
0x904fad lto_input_tree_1(lto_input_block*, data_in*, LTO_tags, unsigned int)
???:0
0x9053d7 lto_input_scc(lto_input_block*, data_in*, unsigned int*, unsigned
int*, bool)
???:0
0x5e9fc8 read_cgraph_and_symbols(unsigned int, char const**)
???:0
0x5d7222 lto_main()
???:0
Note: stopped happening after clean project rebuild, but ideally it should
throw a proper error rather than a segfault?
