https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79827
Bug ID: 79827
Summary: genautomata segmentation fault on NI-RT Linux
Product: gcc
Version: 6.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: pkrizek at tes dot cz
Target Milestone: ---
Can't build GCC from source.
Specific Linux distro:
National Instruments RT Linux.
Using the straightforward approach "download from your web - follow
instructions - build"
lead to the error like the log below - couldn't pass through genautomata.
So I made a static gcc 6.3.0 on Ubuntu 15.04 which was built without problems.
Then I copied the static gcc compiler to the National Instruments distro, made
sure that their proprietary gcc is absent and symlinked gcc, cc etc. to my
static version.
Same result again - could't build genautomata. See log below (this time
copy+paste).
Reproducible on both physical and virtual machine with their distro.
I can send you the whole virtual machine (uncompressed <1.8GiB) if you wish so
that you can reproduce the bug.
-----------------
g++ -std=gnu++98 -g -DIN_GCC -fno-exceptions -fno-rtti
-fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wno-format -Wmissing-format-attribute -Woverloaded-virtual
-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings
-fno-common -DHAVE_CONFIG_H -DGENERATOR_FILE -fno-PIE -static-libstdc++
-static-libgcc -no-pie -o build/genautomata \
build/genautomata.o build/rtl.o build/read-rtl.o build/ggc-none.o
build/vec.o build/min-insn-modes.o build/gensupport.o build/print-rtl.o
build/hash-table.o build/read-md.o build/errors.o
../build-x86_64-pc-linux-gnu/libiberty/libiberty.a -lm
build/genautomata /Flash/gcc/build/gcc-6.3.0/gcc/common.md
/Flash/gcc/build/gcc-6.3.0/gcc/config/i386/i386.md \
insn-conditions.md > tmp-automata.c
/bin/sh: line 1: 3668 Segmentation fault build/genautomata
/Flash/gcc/build/gcc-6.3.0/gcc/common.md
/Flash/gcc/build/gcc-6.3.0/gcc/config/i386/i386.md insn-conditions.md >
tmp-automata.c
Makefile:2184: recipe for target 's-automata' failed
make[3]: *** [s-automata] Error 139
