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Re: [Tinycc-devel] Seg fault with test 114 on Debian i686

From: Christian Jullien
Subject: Re: [Tinycc-devel] Seg fault with test 114 on Debian i686
Date: Sun, 8 Nov 2020 11:10:10 +0100



It curiously don’t seg fault on an even older laptop also install with Debian 10.6. Laptop is a PIII 333MHz 256MB ram


From: Tinycc-devel [mailto:tinycc-devel-bounces+eligis=orange.fr@nongnu.org] On Behalf Of Christian Jullien
Sent: Saturday, November 07, 2020 15:52
To: tinycc-devel@nongnu.org
Subject: [Tinycc-devel] Seg fault with test 114 on Debian i686


Hi all,


I don’t used i686 these days but, from time to time, I boot a very old laptop running Debian (currently 10.6) on a i686.

Today, I gave a try with tinycc mod and got an reproducible error with test 114. Here is what I get:


jullien@simtest:~/tinycc$ uname -a

Linux simtest 4.19.0-12-686 #1 SMP Debian 4.19.152-1 (2020-10-18) i686 GNU/Linux

jullien@simtest:~/tinycc$ gcc -v

Using built-in specs.



Target: i686-linux-gnu

Configured with: ../src/configure -v --with-pkgversion='Debian 8.3.0-6' --with-bugurl=file:///usr/share/doc/gcc-8/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-8 --program-prefix=i686-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib --enable-objc-gc=auto --enable-targets=all --enable-multiarch --disable-werror --with-arch-32=i686 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-checking=release --build=i686-linux-gnu --host=i686-linux-gnu --target=i686-linux-gnu

Thread model: posix

gcc version 8.3.0 (Debian 8.3.0-6)

jullien@simtest:~/tinycc$ ./configure; make && make test

Binary directory    /usr/local/bin

TinyCC directory    /usr/local/lib/tcc

Library directory   /usr/local/lib

Include directory   /usr/local/include

Manual directory    /usr/local/share/man

Info directory      /usr/local/share/info

Doc directory       /usr/local/share/doc

Source path         /home/jullien/tinycc

C compiler          gcc (8.3)

Target OS           Linux

CPU                 i386

Triplet             i386-linux-gnu

Creating config.mak and config.h

gcc -o tcc.o -c tcc.c -DCONFIG_TRIPLET="\"i386-linux-gnu\"" -DTCC_TARGET_I386       -DONE_SOURCE=0 -Wall -O2 -Wdeclaration-after-statement -fno-strict-aliasing -Wno-pointer-sign -Wno-sign-compare -Wno-unused-result -Wno-format-truncation -I.

Test: 113_btdll...

Test: 114_bound_signal...

Segmentation fault

--- 114_bound_signal.expect     2020-11-07 15:30:50.217940473 +0100

+++ 114_bound_signal.output     2020-11-07 15:36:00.106349033 +0100

@@ -1,2 +1 @@



make[3]: *** [Makefile:117: 114_bound_signal.test] Error 1

Test: 115_bound_setjmp...

Test: 116_bound_setjmp2...

Test: 117_builtins...

Test: 118_switch...

Test: 119_random_stuff...

Test: 120_alias...

Test: 121_struct_return...

Test: 122_vla_reuse...

make[3]: Target 'all' not remade because of errors.


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