https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=278868
Bug ID: 278868
Summary: [regression] llvm18/clang18 produces crashing 32 bit
code with -malign-double
Product: Base System
Version: 15.0-CURRENT
Hardware: i386
OS: Any
Status: New
Keywords: regression
Severity: Affects Some People
Priority: ---
Component: bin
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Attachment #250544 text/plain
mime type:
Created attachment 250544
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=250544&action=edit
sample code
32 bit C++ code compiles and works but crashes with SIGSEGV at exit if compiled
with -malign-double.
Compile attached show.cc:
$ c++ -malign-double -o show show.cc
Run it:
$ ktrace -i ./show /etc/motd; echo $?
FreeBSD 15.0-CURRENT (GENERIC) #0 main-n269695-78101d437a92: Thu Apr 25
03:38:32 UTC 2024
Welcome to FreeBSD!
Release Notes, Errata: https://www.FreeBSD.org/releases/
Security Advisories: https://www.FreeBSD.org/security/
FreeBSD Handbook: https://www.FreeBSD.org/handbook/
FreeBSD FAQ: https://www.FreeBSD.org/faq/
Questions List: https://www.FreeBSD.org/lists/questions/
FreeBSD Forums: https://forums.FreeBSD.org/
Documents installed with the system are in the /usr/local/share/doc/freebsd/
directory, or can be installed later with: pkg install en-freebsd-doc
For other languages, replace "en" with a language code like de or fr.
Show the version of FreeBSD installed: freebsd-version ; uname -a
Please include that output and any error messages when posting questions.
Introduction to manual pages: man man
FreeBSD directory layout: man hier
To change this login announcement, see motd(5).
Segmentation fault (core dumped)
139
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