https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105700
Bug ID: 105700
Summary: GCC miscompiles? wine when using -march=pentium-m
Product: gcc
Version: 12.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: aros at gmx dot com
Target Milestone: ---
This is a bug and a call for help simultaneously. I've always built Wine this
way:
export CFLAGS="-O2 -pipe -m32 -march=pentium-m"
export LDFLAGS="-Wl,-O1 -Wl,--hash-style=gnu"
./configure --prefix=/opt/wine --disable-tests && make --disable-tests && make
install-lib
This worked until GCC 12.0.
With GCC 12.0 and 12.1 the resulting code is somewhat broken and one of Wine
processes always crashes on exit with a very cryptic message:
[????] Process 577885 (winedevice.exe) of user 1000 dumped core.
Stack trace of thread 577888:
#0 0x00000000f7d51e7d n/a (n/a + 0x0)
#1 0x00000000f7d528f7 n/a (n/a + 0x0)
ELF object binary architecture: Intel 80386
I've no idea what to do. Normally bugs like this require:
> In general, all the information we need can be obtained by collecting the
> command line below, as well as its output and the preprocessed file it
> generates.
However Wine is not a simple application or library.
winedevice.exe doesn't run by itself, it's a Wine process which is linked to
multiple Wine libraries. Anything can be responsible for the crash.
Please advise.
